COWLITZ BANCORPORATION
S-4, 1999-11-30
STATE COMMERCIAL BANKS
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<PAGE>
   AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON NOVEMBER 29, 1999
                                                     REGISTRATION NO. 333-
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                           --------------------------

                                    FORM S-4

                             REGISTRATION STATEMENT

                                     UNDER

                           THE SECURITIES ACT OF 1933
                           --------------------------

                             COWLITZ BANCORPORATION

             (Exact name of registrant as specified in its charter)

<TABLE>
<S>                             <C>                          <C>
          WASHINGTON                       6712                    91-1529841
 (State or other jurisdiction        (Primary standard           (IRS Employer
              of                        industrial            Identification No.)
incorporation or organization)  classification code number)
</TABLE>

                 927 COMMERCE AVENUE LONGVIEW, WASHINGTON 98632
                                 (360) 423-9800

         (Address, including zip code, and telephone number, including
            area code, of Registrant's principal executive offices)
                           --------------------------

                               CHARLES W. JARRETT
                     PRESIDENT AND CHIEF OPERATING OFFICER
                             COWLITZ BANCORPORATION
                              927 COMMERCE AVENUE
                           LONGVIEW, WASHINGTON 98632
                                 (360) 423-9800

 (Name, address, including zip code, and telephone number, including area code,
                             of agent for service)
                           --------------------------

                                   COPIES TO:

<TABLE>
<S>                                  <C>                                  <C>
                                                WILLIAM SPICER
          DAVID R. WILSON                          Chairman                          DAVID C. BACA
  Heller Ehrman White & McAuliffe         Northern Bank of Commerce            Davis Wright Tremaine LLP
    701 Fifth Avenue, Suite 6100      1001 Southwest Fifth Avenue, Suite    1300 SW Fifth Avenue, Suite 2300
                                                     250
     Seattle, Washington 98104              Portland, Oregon 97204               Portland, Oregon 97201
           (206) 389-4264                       (503) 222-9164                       (503) 241-2300
</TABLE>

                           --------------------------

        APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC:
 AS SOON AS PRACTICABLE AFTER THE EFFECTIVE DATE OF THIS REGISTRATION STATEMENT
 AND THE SATISFACTION OR WAIVER OF ALL OTHER CONDITIONS TO THE MERGER DESCRIBED
                         IN THE JOINT PROXY STATEMENT.
                           --------------------------

    If the securities being registered on this form are being offered in
connection with the formation of a holding company and there is compliance with
General Instruction G, check the following box. / /

    If this form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, check the following box and
list the Securities Act registration statement number of the earlier effective
registration statement for the same offering. / /

    If this form is a post-effective amendment filed pursuant to Rule 462(d)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. / /
                           --------------------------

                        CALCULATION OF REGISTRATION FEE

<TABLE>
<CAPTION>
                                                                      PROPOSED           PROPOSED
                                                                       MAXIMUM            MAXIMUM           AMOUNT OF
           TITLE OF EACH CLASS OF                AMOUNT TO BE      OFFERING PRICE        AGGREGATE        REGISTRATION
         SECURITIES TO BE REGISTERED             REGISTERED(1)        PER SHARE       OFFERING PRICE         FEE(2)
<S>                                            <C>                <C>                <C>                <C>
Common stock, no par value per share.........      1,243,615            $6.00           $7,461,690           $2,075
</TABLE>

(1) The number of shares to be registered pursuant to this Registration
    Statement is based upon the maximum number of shares of common stock of
    Cowlitz Bancorporation which may be issued in exchange for all outstanding
    shares of Northern Bank of Commerce common stock and upon the exercise of
    options to purchase shares of Cowlitz Bancorp common stock granted under the
    terms of the merger agreement described in the joint proxy statement forming
    a part of this Registration Statement.

(2) The registration fee was computed pursuant to Rules 457(f) and 457(c) under
    the Securities Act of 1933, as amended, based on the average of the high and
    low sales prices of the common stock of Northern Bank of Commerce, as
    reported by NASDAQ on November 22, 1999 and the maximum number of shares of
    Northern Bank of Commerce common stock that may be exchanged for the
    securities registered.
                           --------------------------

    THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF
THE SECURITIES ACT OF 1933 OR UNTIL THIS REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE SECURITIES AND EXCHANGE COMMISSION, ACTING
PURSUANT TO SAID SECTION 8(a), MAY DETERMINE.

--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
<PAGE>
[COWLITZ BANCORPORATION LOGO]

                                                                          , 1999

Dear Shareholder:

    You are cordially invited to attend a special meeting of shareholders of
Cowlitz Bancorporation to be held at the Red Lion Hotel, 510 Kelso Drive, Kelso,
Washington, at 8:00 p.m. on Thursday, January 27, 2000.

    At this very important meeting, you will be asked to consider and vote upon
a proposal to approve the issuance of shares of Cowlitz Bancorp common stock in
connection with a proposed merger of Northern Bank of Commerce into Cowlitz
Bancorp's wholly-owned subsidiary, Cowlitz Bank.

    If the merger is completed, Northern Bank of Commerce shareholders will
receive a total of up to 1,012,149 shares of Cowlitz Bancorp common stock, or up
to approximately 0.825842 shares for each share of Northern Bank common stock
they own. Northern Bank shareholders will also receive $1.63 in cash for each
share of Northern Bank common stock they own. The cash consideration will be
deposited, on the Northern Bank shareholders' behalf, into an escrow account
designed to protect Cowlitz Bancorp against losses incurred on identified
Northern Bank loans in the two years following the merger, to the extent these
losses exceed established thresholds. Both the cash portion and the stock
portion of the consideration are subject to possible reductions as described in
the accompanying joint proxy statement. In addition, in connection with the
merger, specified Northern Bank directors and employees will be granted options
to acquire a total of 231,466 shares of Cowlitz Bancorp common stock. The
exercise price of 150,000 of these options will be $12.00 per share. The
exercise price per share of the remaining options will be equal to 1.4 times
Cowlitz Bancorp's shareholders' equity per share immediately following the
merger.

    The board of directors of Cowlitz Bancorp has unanimously approved the
merger and believes that the merger is in the best interest of Cowlitz Bancorp
and its shareholders. The Cowlitz Bancorp board recommends that all shareholders
vote "FOR" approval of the share issuance that will allow the merger to take
place. Cowlitz Bancorp's financial advisor, Sage Capital, LLC, has issued its
written opinion to Cowlitz Bancorp's board of directors that the merger is fair
to Cowlitz Bancorp and its shareholders from a financial point of view. A copy
of this opinion is attached as Appendix E to the joint proxy statement, and you
should read this opinion in its entirety.

    Cowlitz Bancorp common stock is listed on The Nasdaq National Market under
the symbol "CWLZ." Northern Bank common stock is listed on The Nasdaq Small Cap
Market under the symbol "NBOC."

    You should read carefully the accompanying Notice of Special Meeting of
Shareholders and joint proxy statement, which contain important information
about the merger.

    Whether or not you attend the special meeting, it is important that your
shares be represented and voted at the meeting. Therefore, I urge you to sign,
date and promptly return the accompanying proxy card in the enclosed
postage-prepaid envelope. Please note, however, that if your shares are held
through a broker, you must follow the instructions forwarded to you by your
broker for instructing your broker how to vote your shares. Whether or not you
return the enclosed proxy card, you will have the opportunity to vote your
shares in person if you choose to attend the special meeting. On behalf of the
Cowlitz Bancorp board, I thank you for your continued support and again urge you
to vote to approve the share issuance.

                                          Sincerely,

                                          Benjamin Namatinia
                                          CHAIRMAN AND CHIEF EXECUTIVE OFFICER
<PAGE>
    NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES
COMMISSION HAS APPROVED OR DISAPPROVED OF THESE SECURITIES OR PASSED UPON THE
ADEQUACY OR ACCURACY OF THIS JOINT PROXY STATEMENT. ANY REPRESENTATION TO THE
CONTRARY IS A CRIMINAL OFFENSE.

    THE SECURITIES OFFERED HEREBY ARE NOT SAVINGS ACCOUNTS, DEPOSITS OR OTHER
OBLIGATIONS OF ANY BANK OR SAVINGS ASSOCIATION AND ARE NOT INSURED BY THE
FEDERAL DEPOSIT INSURANCE CORPORATION, THE BANK INSURANCE FUND, THE SAVINGS
ASSOCIATION INSURANCE FUND OR ANY GOVERNMENTAL AGENCY.

    This joint proxy statement is also a prospectus of Cowlitz Bancorp with
respect to up to 1,243,615 shares of Cowlitz Bancorp common stock issuable to
Northern Bank shareholders in the merger.

    This joint proxy statement is dated             , 1999 and was first mailed
to shareholders on or about             , 1999.
<PAGE>
[LOGO]

                                                                          , 1999

Dear Shareholder:

    You are cordially invited to attend a special meeting of shareholders of
Northern Bank of Commerce to be held at the University Club, 1225 SW 6th Avenue,
Portland, Oregon 97204, at 9:00 a.m. on Thursday, January 27, 2000.

    At this very important meeting, you will be asked to consider and vote upon
a proposal to approve an agreement providing for the merger of Northern Bank of
Commerce into Cowlitz Bank, a wholly-owned subsidiary of Cowlitz Bancorporation.
As a result of the merger, each share of Northern Bank common stock will be
converted into the right to receive merger consideration of up to $7.05 per
share, subject to possible reductions described below and in the enclosed joint
proxy statement. The merger consideration will consist of the following
components:

    - $5.42 in the form of a number of shares of common stock of Cowlitz
      Bancorporation based on a fixed value for Cowlitz Bancorp stock of $6.563
      per share. Assuming the merger consideration is not reduced based on
      reductions in Northern Bank's shareholders' equity in the manner described
      below, 0.825842 shares of Cowlitz Bancorp common stock will be issued in
      exchange for each Northern Bank share; and

    - $1.63 in cash. However, this amount will be deposited into an escrow
      account, on the Northern Bank shareholders' behalf, to indemnify Cowlitz
      Bancorp for losses Cowlitz Bancorp incurs in excess of established
      thresholds on specified Northern Bank loans during the two year period
      following the merger. The escrowed funds also may be used to offset losses
      in excess of reserves on those identified loans where, in Cowlitz
      Bancorp's good faith estimate, further losses are reasonably expected to
      occur following the release of escrow. Any cash remaining after this
      indemnification, net of expenses, will be paid to Northern Bank
      shareholders 24 months after the effective date of the merger.

    As more fully described in the accompanying joint proxy statement, the
amount of stock merger consideration will be reduced if Northern Bank's
shareholders' equity falls below $4,718,841. As of September 30, 1999, Northern
Bank's shareholders' equity (adjusted for estimated closing expenses of
$158,000) was $4,350,703. If the closing had occurred on that date, the amount
of stock merger consideration payable per Northern Bank share would have been
reduced to $4.89 or 0.745086 shares of Cowlitz Bancorp common stock. Northern
Bank's shareholders' equity may further be reduced as a result of, among other
things, operating losses incurred since September 30, 1999 including any
additional provisions for loan losses required to be made under the merger
agreement based on a review of Northern Bank's loan portfolio that will be
conducted by a third party loan examiner prior to the effective date of the
merger.

    In addition, since the maximum amount of the total merger consideration is
fixed, the merger consideration per share of Northern Bank common stock may be
further reduced if the number of outstanding shares of Northern Bank common
stock increases before the effective date of the merger. Finally, because the
number of shares of Cowlitz Bancorp common stock you will receive for each share
of Northern Bank common stock is based on a fixed value of Cowlitz Bancorp
common stock of $6.563, the actual value of the merger consideration will
decline if the value of Cowlitz Bancorp stock at the effective date of the
merger is less than $6.563 per share. As of the day prior to the date of the
accompanying joint proxy statement, the price per share of Cowlitz Bancorp
common stock was $    . To estimate the value of the Cowlitz Bancorp stock you
will receive for each Northern Bank share you
<PAGE>
own, you should multiply the exchange ratio (which would have been 0.745086 if
the merger had closed on September 30, 1999) by the current per share price of
Cowlitz Bancorp common stock.

    The accompanying Notice of Special Meeting of Shareholders and joint proxy
statement contain important information about the merger, and you should read
them carefully.

    Cowlitz Bancorp common stock is listed on The Nasdaq National Market under
the symbol "CWLZ." Northern Bank common stock is listed on The Nasdaq Small Cap
Market under the symbol "NBOC."

    Northern Bank's board of directors has unanimously approved the merger and
believes the merger is in the best interest of Northern Bank and its
shareholders. The Northern Bank board recommends that all shareholders vote
"FOR" approval of the merger. Northern Bank's financial advisor, D.A.
Davidson & Co., has issued its written opinion to Northern Bank's board of
directors that the merger is fair to Northern Bank and its shareholders from a
financial point of view. A copy of this opinion is attached as Appendix D to the
joint proxy statement, and you should read this opinion in its entirety.

    CONVERTING YOUR NORTHERN BANK SHARES TO COWLITZ BANCORP SHARES REPRESENTS AN
INVESTMENT IN COWLITZ BANCORP. INVESTING IN COWLITZ BANCORP COMMON STOCK
INVOLVES A HIGH DEGREE OF RISK. SEE "RISK FACTORS" ON PAGE 16 OF THE
ACCOMPANYING JOINT PROXY STATEMENT.

    Whether or not you attend the special meeting, it is important that your
shares be represented and voted at the meeting. Because approval of the merger
requires the affirmative vote of two-thirds of the outstanding Northern Bank
shares, a failure to vote amounts to a vote against the merger. Therefore, I
urge you to sign, date and promptly return the accompanying proxy card in the
enclosed postage-prepaid envelope. Please note, however, that if your shares are
held through a broker, you should follow the instructions forwarded to you by
your broker for instructing your broker how to vote your shares. Whether or not
you return the enclosed proxy card, you will have the opportunity to vote your
shares in person if you choose to attend the special meeting. On behalf of the
Northern Bank board, I thank you for your continued support and again urge you
to vote "FOR" adoption of the merger agreement.

                                          Sincerely,

                                          William V. Spicer
                                          CHAIRMAN

    NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES
COMMISSION HAS APPROVED OR DISAPPROVED OF THESE SECURITIES OR PASSED UPON THE
ADEQUACY OR ACCURACY OF THIS JOINT PROXY STATEMENT. ANY REPRESENTATION TO THE
CONTRARY IS A CRIMINAL OFFENSE.

    THE SECURITIES OFFERED HEREBY ARE NOT SAVINGS ACCOUNTS, DEPOSITS OR OTHER
OBLIGATIONS OF ANY BANK OR SAVINGS ASSOCIATION AND ARE NOT INSURED BY THE
FEDERAL DEPOSIT INSURANCE CORPORATION, THE BANK INSURANCE FUND, THE SAVINGS
ASSOCIATION INSURANCE FUND OR ANY GOVERNMENTAL AGENCY.

    This joint proxy statement is dated             , 1999 and this joint proxy
statement is first being mailed to shareholders on or about             , 1999.
<PAGE>
                         [COWLITZ BANCORPORATION LOGO]
                              927 COMMERCE AVENUE
                           LONGVIEW, WASHINGTON 98632

                            ------------------------

                   NOTICE OF SPECIAL MEETING OF SHAREHOLDERS
                         TO BE HELD ON JANUARY 27, 2000

                            ------------------------

    Notice is hereby given that a special meeting of shareholders of Cowlitz
Bancorporation will be held at the Red Lion Hotel, 510 Kelso Drive, Kelso,
Washington, at 8:00 p.m., on Thursday, January 27, 2000, for the following
purposes, as more fully described in the accompanying joint proxy statement:

    1.  To consider and vote upon a proposal to approve the issuance of shares
of common stock of Cowlitz Bancorporation pursuant to the Agreement and Plan of
Merger, dated as of September 14, 1999, among Cowlitz Bancorporation, Cowlitz
Bank and Northern Bank of Commerce, providing for the merger of Northern Bank of
Commerce into Cowlitz Bank. The merger agreement is attached as Appendix C to
the accompanying joint proxy statement.

    2.  To transact any other business as may properly come before the special
meeting or any adjournment or postponement of the meeting.

    Only holders of record of Cowlitz Bancorp common stock at the close of
business on November 30, 1999 are entitled to receive notice of and to vote at
the special meeting or any adjournment or postponement of the meeting.

    THE BOARD OF DIRECTORS OF COWLITZ BANCORP UNANIMOUSLY RECOMMENDS THAT
SHAREHOLDERS VOTE "FOR" APPROVAL OF THE SHARE ISSUANCE.

<TABLE>
<S>                                            <C>
                                               By order of the Board of Directors,

                                               Donna P. Gardner
                                               VICE PRESIDENT & SECRETARY/TREASURER
</TABLE>

            , 1999

WHETHER OR NOT YOU PLAN TO ATTEND THE SPECIAL MEETING, PLEASE COMPLETE, SIGN AND
DATE THE ENCLOSED PROXY CARD AND MAIL IT PROMPTLY IN THE ENCLOSED RETURN
ENVELOPE, WHICH REQUIRES NO POSTAGE IF MAILED IN THE UNITED STATES. IF YOU
ATTEND THE SPECIAL MEETING, YOU MAY VOTE IN PERSON IF YOU WISH TO DO SO EVEN IF
YOU HAVE PREVIOUSLY SENT IN YOUR PROXY CARD. IF YOUR COWLITZ BANCORP SHARES ARE
HELD BY A BROKER IN STREET NAME, PLEASE FOLLOW YOUR BROKER'S INSTRUCTIONS FOR
DIRECTING YOUR BROKER HOW TO VOTE YOUR SHARES.
<PAGE>
                                     [LOGO]

                     1001 SOUTHWEST FIFTH AVENUE, SUITE 250
                             PORTLAND, OREGON 97204

                            ------------------------

                   NOTICE OF SPECIAL MEETING OF SHAREHOLDERS
                         TO BE HELD ON JANUARY 27, 2000

                            ------------------------

    Notice is hereby given that a special meeting of shareholders of Northern
Bank of Commerce will be held at the University Club, 1225 SW 6th Avenue,
Portland, Oregon, at 9:00 a.m., on Thursday January 27, 2000, for the following
purposes, as more fully described in the accompanying joint proxy statement:

    1.  To consider and vote upon a proposal to approve the Agreement and Plan
of Merger, dated as of September 14, 1999, among Cowlitz Bancorporation, Cowlitz
Bank and Northern Bank of Commerce, providing for the merger of Northern Bank of
Commerce into Cowlitz Bank. The merger agreement is attached as Appendix C to
the accompanying joint proxy statement.

    2.  To transact any other business as may properly come before the special
meeting or any adjournment or postponement of the meeting.

    Only holders of record of Northern Bank common stock, at the close of
business on November 30, 1999 are entitled to receive notice of and to vote at
the special meeting or any adjournment or postponement of the meeting.

    THE BOARD OF DIRECTORS OF NORTHERN BANK UNANIMOUSLY RECOMMENDS THAT
SHAREHOLDERS VOTE "FOR" APPROVAL OF THE MERGER.

<TABLE>
<S>                                            <C>
                                               By order of the Board of Directors,

                                               William V. Spicer
                                               CHAIRMAN
</TABLE>

            , 1999

THE APPROVAL OF THE MERGER PROPOSAL REQUIRES THE AFFIRMATIVE VOTE OF TWO-THIRDS
OF THE ISSUED AND OUTSTANDING SHARES OF NORTHERN BANK COMMON STOCK. THEREFORE,
FAILURE TO VOTE WILL HAVE THE SAME EFFECT AS A VOTE AGAINST THE MERGER PROPOSAL.
WHETHER OR NOT YOU PLAN TO ATTEND THE SPECIAL MEETING, PLEASE COMPLETE, SIGN AND
DATE THE ENCLOSED PROXY CARD AND MAIL IT PROMPTLY IN THE ENCLOSED RETURN
ENVELOPE, WHICH REQUIRES NO POSTAGE IF MAILED IN THE UNITED STATES. IF YOU
ATTEND THE SPECIAL MEETING, YOU MAY VOTE IN PERSON IF YOU WISH TO DO SO EVEN IF
YOU HAVE PREVIOUSLY SENT IN YOUR PROXY CARD. IF YOUR NORTHERN BANK SHARES ARE
HELD BY A BROKER IN STREET NAME, PLEASE FOLLOW YOUR BROKER'S INSTRUCTIONS FOR
DIRECTING YOUR BROKER HOW TO VOTE YOUR SHARES.
<PAGE>
                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                PAGE
                                                              --------
<S>                                                           <C>
QUESTIONS AND ANSWERS ABOUT THE MERGER......................      1

SUMMARY.....................................................      2

SUMMARY FINANCIAL DATA OF COWLITZ BANCORP...................      8

SUMMARY FINANCIAL DATA OF NORTHERN BANK.....................     10

SUMMARY HISTORICAL AND PRO FORMA COMBINED FINANCIAL DATA....     12

SELECTED UNAUDITED COMPARATIVE PER SHARE DATA...............     13

COMPARATIVE MARKET PRICES AND DIVIDEND INFORMATION..........     14

RISK FACTORS................................................     16

THE SPECIAL MEETINGS........................................     19
  General...................................................     19
  Matters To Be Considered at the Special Meetings..........     19
  Record Date and Voting....................................     19
  Proxies and Voting Instructions...........................     19
  Quorum; Votes Required....................................     20
  Solicitation of Proxies...................................     21

THE MERGER..................................................     22
  General...................................................     22
  The Merger Consideration..................................     22
  Payment of Cash; Escrow Arrangements......................     24
  Background of the Merger..................................     25
  Reasons for the Merger; Recommendations of the Boards of
    Directors...............................................     26
  Opinions of Financial Advisors............................     28
  Opinion of Cowlitz Bancorp's Financial Advisor............     28
  Opinion of Northern Bank's Financial Advisor..............     31
  Effective Date............................................     35
  Exchange of Certificates..................................     35
  Fractional Shares.........................................     36
  Representations and Warranties............................     36
  Conditions to the Completion of the Merger................     37
  Regulatory Approvals Required.............................     39
  Amendment and Waiver of the Merger Agreement..............     39
  Termination of the Merger Agreement.......................     39
  Termination Fees..........................................     41
  The Option Agreement......................................     41
  Conduct of Business Pending the Merger and Other
    Agreements..............................................     42
  Expenses and Fees.........................................     45
  Accounting Treatment......................................     45
  Nasdaq Listing of Cowlitz Bancorp Common Stock............     45
  Resale of Cowlitz Bancorp Stock Received by Northern Bank
    Shareholders............................................     45
  Appraisal Rights..........................................     46
  Interests of Certain Persons in the Merger................     46
</TABLE>

                                       i
<PAGE>

<TABLE>
<CAPTION>
                                                                PAGE
                                                              --------
<S>                                                           <C>
  Employee Matters..........................................     47
  Certain Federal Income Tax Consequences...................     48

MANAGEMENT AND OPERATIONS OF COWLITZ BANK FOLLOWING THE
  MERGER....................................................     53
  General...................................................     53
  Board of Directors........................................     53
  Operations After the Merger...............................     53

PRO FORMA COMBINED FINANCIAL INFORMATION....................     54

COMPARISON RIGHTS OF COWLITZ BANCORP SHAREHOLDERS AND
  NORTHERN BANK SHAREHOLDERS................................     59
  Capital Stock.............................................     59
  Board of Directors........................................     59
  Monetary Liability of Directors...........................     59
  Voting Rights.............................................     59
  Removal of Directors and Filling Vacancies on the Board of
    Directors...............................................     60

CERTAIN DIFFERENCES BETWEEN WASHINGTON AND OREGON CORPORATE
  LAWS......................................................     61
  Amendments of Articles of Incorporation...................     61
  Right to Call a Special Meeting of Shareholders...........     61
  Transactions with Officers or Directors...................     61
  Limitation of Liability of Directors......................     62
  Indemnification of Officers, Directors and Employees......     62
  Mergers, Sales of Assets and Other Transactions...........     63
  Provisions Affecting Control Share Acquisition and
    Business Combinations...................................     63
  Consideration of Other Constituencies.....................     63
  Dissenters' Rights........................................     64
  Dissolution...............................................     64

DESCRIPTION OF COWLITZ BANCORP CAPITAL STOCK................     65
  Cowlitz Bancorp Common Stock..............................     65
  Cowlitz Bancorp Preferred Stock...........................     65

DESCRIPTION OF NORTHERN BANK COMMON STOCK...................     66

LEGAL MATTERS...............................................     66

EXPERTS.....................................................     66

WHERE YOU CAN FIND MORE INFORMATION.........................     67

SHAREHOLDER PROPOSALS.......................................     67
</TABLE>

<TABLE>
<S>             <C>                                                           <C>

Appendix A      Information Concerning Cowlitz Bancorporation...............    A-1

Appendix B      Information Concerning Northern Bank of Commerce............    B-1

Appendix C      Agreement and Plan of Merger................................    C-1

Appendix D      Opinion of D.A. Davidson & Co...............................    D-1

Appendix E      Opinion of Sage Capital, LLC................................    E-1

Appendix F      Escrow Agreement............................................    F-1

Appendix G      Stock Option Agreement......................................    G-1
</TABLE>

                                       ii
<PAGE>
                     QUESTIONS AND ANSWERS ABOUT THE MERGER

Q: WHAT ARE NORTHERN BANK SHAREHOLDERS BEING ASKED TO VOTE UPON?

A: Northern Bank shareholders are being asked to approve the merger agreement
    that provides for the merger of Northern Bank into Cowlitz Bank.

Q: WHAT ARE COWLITZ BANCORP SHAREHOLDERS BEING ASKED TO VOTE UPON?

A: Cowlitz Bancorp shareholders are being asked to approve the issuance of
    Cowlitz Bancorp common stock in connection with the proposed merger of
    Northern Bank into Cowlitz Bank.

Q: WHAT DO I NEED TO DO NOW?

A: After you read and consider the information in this document, mark your proxy
    card either "FOR" or "AGAINST" the proposal described in your proxy card and
    then mail your signed and dated proxy card in the enclosed return envelope
    as soon as possible, so that your shares may be voted at the special
    meeting. You should return your proxy card whether or not you plan to attend
    the special meeting.

Q: IF MY SHARES ARE HELD IN "STREET NAME" BY MY BROKER, WILL MY BROKER VOTE MY
    SHARES FOR ME?

A: Your broker will vote your shares only if you provide instructions on how to
    vote. Please tell your broker how you would like him or her to vote your
    shares. If you do not tell your broker how to vote, your shares will not be
    voted. For Northern Bank shareholders, this will have the same effect as a
    "no" vote on the merger.

Q: CAN I CHANGE MY VOTE AFTER I HAVE MAILED MY SIGNED PROXY?

A: Yes. You can change your vote at any time before your proxy is voted at the
    meeting. You can do this in one of the following three ways:

    - delivering written notice of revocation to the corporate secretary;

    - completing and submitting a proxy card with a later date; or

    - attending the special meeting and voting in person.

Q: SHOULD NORTHERN BANK SHAREHOLDERS SEND IN THEIR STOCK CERTIFICATES NOW?

A: No. If the merger is completed, Cowlitz Bancorp will send you written
    instructions on how to exchange your stock certificates.

Q: WHEN DO YOU EXPECT THE MERGER TO BE COMPLETED?

A: We are working to complete the merger as quickly as possible. We hope to
    complete it on or about March 1, 2000, assuming all governmental approvals
    have been received by that date.

Q: WHOM SHOULD I CALL WITH QUESTIONS?

A: Cowlitz Bancorp shareholders should direct questions to either Charles W.
    Jarrett, President and Chief Operating Officer, or Don P. Kiser, Vice
    President and Chief Financial Officer, of Cowlitz Bancorporation at
    (360) 423-9800.

    Northern Bank shareholders should direct questions to either William V.
    Spicer, Chairman, John H. Holloway, Jr., Director, or James A. Wills,
    President, of Northern Bank of Commerce at (503) 222-9164

                                       1
<PAGE>
                                    SUMMARY

    THIS SUMMARY ONLY HIGHLIGHTS SELECTED INFORMATION FROM THIS JOINT PROXY
STATEMENT AND DOES NOT CONTAIN ALL OF THE INFORMATION THAT MAY BE IMPORTANT TO
YOU. YOU SHOULD READ THIS ENTIRE JOINT PROXY STATEMENT, INCLUDING THE APPENDICES
AND THE DOCUMENTS TO WHICH IT REFERS, BEFORE YOU DECIDE HOW TO VOTE ON THE
MERGER OR THE SHARE ISSUANCE. FOR A DESCRIPTION OF THE DOCUMENTS TO WHICH THIS
PROXY STATEMENT REFERS, SEE "WHERE YOU CAN FIND MORE INFORMATION" ON PAGE 67.

    THIS PROXY STATEMENT CONTAINS FORWARD-LOOKING STATEMENTS REGARDING COWLITZ
BANCORP, COWLITZ BANK, NORTHERN BANK AND THE COMBINED COMPANY AFTER THE MERGER.
THE ACTUAL RESULTS OF THESE COMPANIES COULD DIFFER MATERIALLY FROM THOSE
FORWARD-LOOKING STATEMENTS AS A RESULT OF CERTAIN FACTORS. THESE FACTORS INCLUDE
THE RISK FACTORS DESCRIBED ON PAGE 16 OF THIS JOINT PROXY STATEMENT.

THE PARTIES TO THE MERGER (SEE APPENDICES A AND B)

   COWLITZ BANCORPORATION
    COWLITZ BANK
    927 COMMERCE AVENUE
    LONGVIEW, WASHINGTON 98632
    (360) 423-9800

    Cowlitz Bancorporation was organized in 1991 under Washington law to become
the holding company for Cowlitz Bank, a Washington state chartered bank that
commenced operations in 1978. The principal executive offices of Cowlitz Bancorp
are located in Longview, Washington.

    Cowlitz Bancorp offers or makes available a broad range of financial
services to its customers, primarily small and medium-sized businesses,
professionals and retail customers. Cowlitz Bank's commercial and personal
banking services include commercial and real estate lending, consumer lending,
mortgage origination and trust services. Cowlitz Bank has also developed
relationships with a securities brokerage firm and insurance agency with an
estate planner to provide its customers access to a variety of financial
services which are generally not available in community banks. During 1998,
Cowlitz Bancorp acquired Business Finance Corporation which provides asset-based
lending services to companies throughout the western United States.

    Cowlitz Bancorp's goal is to continue to expand its position as a leading
community based provider of financial services in Cowlitz County and to become
one of the leading community based providers of financial services in other
selected areas of Washington and Oregon. In accordance with this strategy,
during 1999 Cowlitz Bancorp commenced operations in the Seattle, Washington area
through the acquisition of Bay Mortgage of Bellevue, Washington, Bay Mortgage of
Seattle, Washington, and Bay Escrow of Seattle, Washington. Cowlitz Bancorp has
also started a new branch of Cowlitz Bank, operating as Bay Bank, in Bellevue,
Washington. Cowlitz Bancorp's growth strategy is based on providing both
exceptional personal service and a wide range of financial services to its
customers including: emphasizing personal service and developing strong
community ties, providing a broad range of financial products and services,
increasing business volume in existing markets, and continuing to explore
opportunities for regional expansion through acquisitions.

   NORTHERN BANK OF COMMERCE
    1001 SOUTHWEST FIFTH AVENUE, SUITE 250
    PORTLAND, OREGON 97204
    (503) 222-9164

    Northern Bank serves local businesses in the Portland, Oregon, metropolitan
area from a single location in downtown Portland. Northern Bank also serves
senior citizens from eight branches in residential retirement communities
throughout the Portland area. Northern Bank believes that its downtown Portland
headquarters provides it with a competitive advantage in serving its business
customers. Nearly all of Northern Bank's competitors are either super-regional
banks with out-of-state headquarters, or community banks headquartered in other
parts of Oregon with Portland-area branches. Northern Bank's Portland
headquarters provides more immediate access to its customers and more local
decision-making.

                                       2
<PAGE>
    Northern Bank provides loan, deposit, and cash management services tailored
to the banking needs of small to middle market business customers. Northern Bank
also provides personal banking services to its business customers. In addition
to business banking, Northern Bank operates its eight branches in residential
retirement communities in Portland and surrounding areas. These branches provide
a relatively stable deposit base.

    Since its opening in 1994, Northern Bank has grown by developing its core
market, opening new branches, introducing new lines of business, and expanding
and cross-marketing existing products and lending expertise. Almost all this
asset growth was in its core market, small and medium sized local businesses.

    Northern Bank's goal is to continue building on its position as a leading
community-based business bank by providing exceptional personal service to its
current customers and by expanding into new markets by identifying and meeting
customers' unique financial services needs. If the merger is concluded, Northern
Bank's management anticipates that the goodwill the bank has built in the
Portland business community will provide a significant opportunity for Cowlitz
Bancorp to expand into the Portland market.

THE SPECIAL MEETINGS (SEE PAGE 19)

    COWLITZ BANCORP. The Cowlitz Bancorp special meeting of shareholders will be
held on Thursday, January 27, 2000, at 8:00 p.m., at the Red Lion Hotel,
510 Kelso Drive, Kelso, Washington.

    You can vote at the special meeting if you owned Cowlitz Bancorp common
stock at the close of business on November 30, 1999. On the record date, there
were      shares of Cowlitz Bancorp common stock entitled to vote at the special
meeting. You can cast one vote for each share of Cowlitz Bancorp common stock
you owned at that time.

    To approve the issuance of shares necessary to complete the merger, the
holders of a majority of shares of Cowlitz Bancorp common stock voting at a
meeting in which a quorum is present must vote in favor of it. At the record
date, Cowlitz Bancorp directors and executive officers beneficially owned
shares, which represents   % of the shares entitled to vote at the meeting.

    NORTHERN BANK.  The Northern Bank special meeting of shareholders will be
held on Thursday, January 27, 2000, at 9:00 a.m., at the University Club, 1225
SW 6th Avenue, Portland, Oregon 97204.

    You can vote at the special meeting if you owned Northern Bank common stock
at the close of business on November 30, 1999. On the record date, there were
1,255,597 shares of Northern Bank common stock entitled to vote at the special
meeting. You can cast one vote for each share of Northern Bank common stock you
owned at that time.

    To approve the merger agreement, the holders of two-thirds of the
outstanding shares of Northern Bank common stock must vote in favor of it.
Shares not voted have the same effect as a vote against the merger. At the
record date, Northern Bank directors and executive officers beneficially owned
12,955 shares, which represents 1.03% of the shares entitled to vote at the
meeting.

THE MERGER AND RELATED TRANSACTIONS

    The merger agreement is attached to this proxy statement as Appendix C. We
encourage you to read the merger agreement carefully, as it is the legal
document that governs the merger of Northern Bank into Cowlitz Bank.

WHAT NORTHERN BANK SHAREHOLDERS WILL RECEIVE (SEE PAGE 22)

    At the effective date of the merger, each outstanding share of Northern Bank
common stock will convert into the right to receive merger consideration of up
to $7.05 per share, subject to the possible reductions described below and in
this joint proxy statement. The merger consideration will consist of:

    - $5.42 in the form of a number of shares of common stock of Cowlitz
      Bancorporation based on a fixed value of $6.563 per share of Cowlitz
      Bancorp

                                       3
<PAGE>
      stock. Assuming the merger consideration is not reduced as a result of
      reductions in Northern Bank's shareholders' equity in the manner described
      below, 0.825842 shares of Cowlitz Bancorp common stock will be issued in
      respect of each Northern Bank share; and

    - $1.63 in cash. However, the cash portion of the merger consideration will
      be deposited in an escrow account, on the Northern Bank shareholders'
      behalf, to indemnify Cowlitz Bancorp for losses it incurs in excess of
      established thresholds during the two year period following the merger on
      specified Northern Bank loans that will be identified prior to closing.
      The escrowed funds also may be used to offset losses in excess of reserves
      on those identified loans where, in Cowlitz Bancorp's good faith estimate,
      further losses are reasonably expected to occur following the release of
      escrow. Any amount remaining in this account after this indemnification,
      net of expenses, will be paid to Northern Bank shareholders 24 months
      after the effective date of the merger.

    The amount of stock merger consideration may be reduced if Northern Bank's
shareholders' equity immediately prior to the effective date of the merger is
less than $4,718,841. As of September 30, 1999, Northern Bank's shareholders'
equity (as adjusted for estimated closing expenses of $158,000) was $4,350,703.
If the closing of the merger had occurred on that date, the amount of stock
merger consideration payable per Northern Bank share would have been reduced to
$4.89 or 0.745086 shares of Cowlitz Bancorp common stock. Based on the closing
price of Cowlitz Bancorp common stock on          , 1999 of $    per share, the
value of the stock portion of the merger consideration would have been $    per
share. Northern Bank's shareholders' equity may further be reduced as a result
of, among other things, operating losses Northern Bank incurs after
September 30, 1999 including any additional provision for loan losses required
to be made under the merger agreement based on a review of Northern Bank's loan
portfolio that will be conducted by a third party loan examiner prior to the
effective date of the merger.

    In addition, since the maximum amount of the total merger consideration is
fixed, the per share consideration may decrease if the number of outstanding
shares of Northern Bank common stock increases prior to the closing.

COWLITZ BANCORP'S REASONS FOR THE MERGER (SEE PAGE 26)

    In approving the merger, the Cowlitz Bancorp board of directors considered a
number of factors. These factors included the total consideration to be paid to
Northern Bank shareholders, the future prospects of Cowlitz Bank and the
structure of the transaction.

RECOMMENDATION OF COWLITZ BANCORP'S BOARD OF DIRECTORS (SEE PAGE 26 )

    The Cowlitz Bancorp and Cowlitz Bank boards of directors unanimously
approved the merger agreement. The Cowlitz Bancorp board of directors believes
that the proposed merger is fair to Cowlitz Bancorp shareholders and in their
best interests and unanimously recommends that Cowlitz Bancorp shareholders vote
"FOR" approval of the share issuance necessary to compete the merger.

OPINION OF COWLITZ BANCORP'S FINANCIAL ADVISOR (SEE PAGE 28)

    Cowlitz Bancorp retained Sage Capital LLC to act as its financial advisor in
connection with the merger. Sage has delivered to the Cowlitz Bancorp board of
directors a written opinion stating that the merger is fair to Cowlitz Bancorp
and its shareholders from a financial point of view. The full text of the
opinion which sets forth the assumptions on which Sage Capital relied and the
limitations of its opinion, is attached as Appendix E to this joint proxy
statement.

NORTHERN BANK'S REASONS FOR THE MERGER (SEE PAGE 27)

    The Northern Bank board of directors considered a number of factors in
determining whether to approve the merger including the

                                       4
<PAGE>
mandates imposed by state and federal regulatory proceedings, the strength of
Cowlitz Bancorp's capital position and business plan, the value of the
consideration offered and the treatment of the Northern Bank loan portfolio.

RECOMMENDATION OF NORTHERN BANK'S BOARD OF DIRECTORS (SEE PAGE 28)

    Northern Bank's board of directors voted unanimously to approve the merger
agreement because it believes that the proposed merger is in the best interest
of Northern Bank and its shareholders and is fair to Northern Bank's
shareholders economically and otherwise. Therefore, the Northern Bank board of
directors recommends unanimously that Northern Bank shareholders vote "FOR"
approval of the merger.

OPINION OF NORTHERN BANK'S FINANCIAL ADVISOR (SEE PAGE 31)

    Northern Bank retained D.A. Davidson & Co. to act as its financial advisor
in connection with the merger. D.A. Davidson & Co. has delivered to the Northern
Bank board of directors a written opinion stating that the terms of the merger
are fair to Northern Bank's shareholders from a financial point of view. The
full text of the D.A. Davidson & Co. opinion, which sets forth the assumptions
on which D.A. Davidson & Co. relied and the limitations of its opinion, is
attached as Appendix D to this joint proxy statement.

    INTERESTS OF NORTHERN BANK'S EXECUTIVE OFFICERS AND DIRECTORS IN THE MERGER
(SEE PAGE 46)

    In considering the recommendation of Northern Bank's board of directors to
approve the merger you should be aware that some executive officers and
directors of Northern Bank have employment and other compensation agreements or
plans that may give them interests in the merger that are somewhat different
from, or in addition to, the interests of other Northern Bank shareholders.

FEDERAL INCOME TAX CONSEQUENCES OF THE MERGER (SEE PAGE 48)

    As discussed further below, the tax consequences of the merger depend in
large part on the aggregate actual market value of the Cowlitz Bancorp stock
that will be issued in the merger in relation to the amount of cash paid by
Cowlitz Bancorp. See discussion below under "The Merger Consideration." Because
both the number of Cowlitz Bancorp shares that will be issued to the Northern
Bank shareholders and the value of those shares will not be known until the
effective date of the merger, the tax consequences of the merger will not be
known at the time of the shareholder meetings. If the merger meets certain
requirements discussed below under the heading "Certain Federal Income Tax
Consequences," it can qualify as a partially tax-free reorganization. It is not
known at this time whether these requirements will be met. If they are not met,
the tax consequences of the merger will be different and, in some cases,
materially less favorable to Northern Bank shareholders than the tax
consequences of a merger that qualifies as a partially tax-free reorganization.
Therefore, in considering whether to vote for or against the merger, you should
consider the possibility that the merger may be treated as a fully taxable
transaction.

    If the merger qualifies as a reorganization, generally:

    - no gain or loss will be recognized by Cowlitz Bancorp, Cowlitz Bank or
      Northern Bank as a result of the merger;

    - Northern Bank shareholders whose tax basis in their Northern Bank shares
      is less than the total value of Cowlitz Bancorp stock and cash they
      receive in the merger will recognize gain on the merger, but the amount of
      gain these shareholders will recognize will not exceed the amount of cash
      they receive (including their pro rata share of the cash consideration
      placed into escrow on behalf of the Northern Bank shareholders);

    - Northern Bank shareholders will not recognize loss on the merger.

                                       5
<PAGE>
    For more detailed information you should review the discussion of federal
income tax consequences to shareholders under the heading a "Partially Tax Free
Reorganization" beginning on page 50.

    If the merger does not qualify as a reorganization, generally:

    - no gain or loss will be recognized by Cowlitz Bancorp or Cowlitz Bank;

    - Northern Bank will be treated as selling all of its assets to Cowlitz Bank
      in a taxable sale and will realize gain or loss, with all taxes due on any
      gain as a result of the merger to be paid by Cowlitz Bancorp and Cowlitz
      Bank;

    - Northern Bank shareholders will recognize gain or loss in an amount equal
      to the total value of the merger consideration they receive less their tax
      basis in the Northern Bank shares exchanged in the merger.

    For more detailed information about the tax consequences of the merger if it
does not meet the requirements of a reorganization, you should review the
discussion of federal income tax consequences to shareholders under the heading
"Taxable Transaction" beginning on page 51. This summary addresses only U.S.
federal income taxes. This summary does not address other taxes which may be
relevant to Northern Bank shareholders, such as state, local or foreign taxes.
In addition, the tax consequences described above and elsewhere in this document
may not apply equally to all Northern Bank shareholders and are subject to the
limitations discussed on pages 48 and 49. The tax consequences of the merger to
a Northern Bank shareholder will depend on the facts of his or her own
situation. WE URGE YOU TO CONSULT YOUR OWN TAX ADVISORS FOR A FULL UNDERSTANDING
OF THE TAX CONSEQUENCES OF THE MERGER TO YOU. Following closing, Cowlitz Bancorp
will advise former Northern Bank shareholders as to the final breakdown of the
value of the merger consideration between cash and Cowlitz Bancorp stock and how
it intends to treat the merger for federal income tax purposes. The treatment by
Cowlitz Bancorp is not binding on the former Northern Bank shareholders, who
should consult their own tax advisors regarding this determination and the
corresponding tax consequences.

CONDITIONS TO THE COMPLETION OF MERGER (SEE PAGE 37)

    Completion of the merger depends on a number of conditions being satisfied,
including the following:

    - the Northern Bank shareholders must have approved the merger and Cowlitz
      Bancorp shareholders must have approved the issuance of shares in the
      merger;

    - we must have received all required regulatory approvals and all statutory
      waiting periods must have expired;

    - there must be no statute, rule, regulation, order, injunction or decree
      prohibiting or restricting the merger;

    - no stop order shall have been issued suspending the effectiveness of the
      registration statement of which this joint proxy statement is a part, and
      no proceedings for that purpose shall have been initiated or threatened by
      the SEC;

    - the Cowlitz Bancorp shares to be issued in the merger must be authorized
      for listing on The Nasdaq National Market;

    - Cowlitz Bancorp shall have received assurances from the FDIC and the
      Director of the Department of Consumer and Business Services of the State
      of Oregon that certain cease and desist orders issued with respect to
      Northern Bank will not be applicable to Cowlitz Bank as the surviving bank
      in the merger;

    - Northern Bank's total deposits at the effective date of the merger must be
      equal to at least 80% of its total deposits as of June 30, 1999 and must
      have substantially similar interest rates and deposit mix as those
      deposits Northern Bank had on June 30, 1999; and

                                       6
<PAGE>
    - Northern Bank's total shareholders' equity as of the effective date of the
      merger must be at least $1,150,000.

TERMINATION OF THE MERGER AGREEMENT (SEE PAGE 39)

    Cowlitz Bancorp and Northern Bank may terminate the merger agreement by
mutual consent. The merger agreement may also be terminated unilaterally by
either Cowlitz Bancorp or Northern Bank if any of several conditions occur.

REGULATORY APPROVALS REQUIRED FOR THE MERGER (SEE PAGE 39)

    Cowlitz Bancorp and Northern Bank must obtain the approval of the FDIC. In
addition, they have identified Washington and Oregon as states in which filings
or prior regulatory approval are required. Cowlitz Bancorp and Northern Bank are
in the process of obtaining these approvals and filing these notices.

TERMINATION FEES (SEE PAGE 41)

    The merger agreement requires Northern Bank to pay a $425,000 termination
fee to Cowlitz Bancorp if the merger agreement terminates under a number of
specified circumstances.

STOCK OPTION AGREEMENT (SEE PAGE 41)

    Cowlitz Bancorp and Northern Bank have entered into an option agreement that
permits Cowlitz Bancorp under a number of specified circumstances to purchase
shares of Northern Bank common stock representing 19.9% of the total number of
outstanding shares of Northern Bank common stock at a price of $4.625 per share.
Cowlitz Bancorp's total profit under the option agreement is limited to $425,000
before taxes.

ACCOUNTING TREATMENT OF THE MERGER (SEE PAGE 45)

    Cowlitz Bancorp will account for the merger as a purchase in accordance with
generally accepted accounting principles. This means that Northern Bank's
assets, including intangible assets, and liabilities will be recorded at their
fair values as of the effective date of the merger. Any excess of the merger
consideration over the fair values of Northern Bank's assets and liabilities
will be recorded as goodwill and amortized over a ten year period. Accordingly,
any income (or loss) of Northern Bank prior to the effective date of the merger
will not be included in Cowlitz Bancorp's income statement.

APPRAISAL RIGHTS (SEE PAGE 46)

    Under Oregon law, Northern Bank shareholders who dissent from the merger are
entitled to appraisal and payment for their shares under the rules provided in
Sections 711.175 to 711.185 of the Oregon Revised Statutes. If more than five
percent (5%) of the Northern Bank shareholders dissent from the merger, Cowlitz
Bancorp may unilaterally terminate the merger agreement.

                                       7
<PAGE>
                   SUMMARY FINANCIAL DATA OF COWLITZ BANCORP

    Cowlitz Bancorp is providing the following information to aid you in your
analysis of the financial aspects of the merger. Cowlitz Bancorp derived the
information for the years ended, and as of, December 31, 1994 through
December 31, 1998 from its historical audited financial statements for these
fiscal years. Cowlitz Bancorp derived the financial information for the nine
months ended September 30, 1998 and September 30, 1999, and as of September 30,
1999, from its unaudited financial statements that include, in the opinion of
management, all normal and recurring adjustments that management considers
necessary for a fair statement of the results. The operating results for the
nine months ended September 30, 1999 do not necessarily indicate the results
that may be expected for the year ending December 31, 1999. This information is
only a summary and you should read it in conjunction with Cowlitz Bancorp's
consolidated financial statements and related notes contained in Appendix A to
this joint proxy statement.

<TABLE>
<CAPTION>
                                         NINE MONTHS ENDED
                                           SEPTEMBER 30,                        YEAR ENDED DECEMBER 31,
                                       ---------------------   ---------------------------------------------------------
                                         1999        1998        1998        1997        1996        1995        1994
                                       ---------   ---------   ---------   ---------   ---------   ---------   ---------
                                                                   (DOLLARS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
<S>                                    <C>         <C>         <C>         <C>         <C>         <C>         <C>
Interest income......................  $  12,446   $  12,074   $  16,366   $  15,086   $  13,633   $  10,644   $   7,492
Interest expense.....................      4,190       4,954       6,501       6,943       6,174       4,548       2,841
                                       ---------   ---------   ---------   ---------   ---------   ---------   ---------
Net interest income..................      8,256       7,120       9,865       8,143       7,459       6,096       4,651

Provision for loan losses............      1,065         243         509         375         281         694         533
Noninterest income...................      1,200         734         978         749         296         877         287
Noninterest expense..................      7,499       5,034       6,927       5,284       3,682       3,093       2,363
                                       ---------   ---------   ---------   ---------   ---------   ---------   ---------
Income before income taxes,
  extraordinary items, cumulative
  effect of accounting changes, and
  minority interest..................        892       2,577       3,407       3,233       3,792       3,186       2,042
Income taxes.........................        341         876       1,181       1,109       1,295       1,088         697
                                       ---------   ---------   ---------   ---------   ---------   ---------   ---------
Net income...........................  $     551   $   1,701   $   2,226   $   2,124   $   2,497   $   2,098   $   1,345
Basic earnings per share.............  $     .14   $     .47   $    0.60   $    0.82   $    0.97   $    0.83   $    0.78
Diluted earnings per share...........  $     .13   $     .44   $    0.57   $    0.78   $    0.97   $    0.83   $    0.78
Average number of shares used to
  calculate earnings per share:
    Basic............................  4,046,872   3,619,488   3,715,901   2,601,650   2,586,711   2,514,769   1,723,733
    Diluted..........................  4,104,249   3,822,607   3,894,095   2,711,512   2,586,711   2,514,769   1,723,733
</TABLE>

<TABLE>
<CAPTION>
                                                                                      DECEMBER 31,
                                                  SEPTEMBER 30,   ----------------------------------------------------
                                                      1999          1998       1997       1996       1995       1994
                                                  -------------   --------   --------   --------   --------   --------
                                                                    (DOLLARS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
<S>                                               <C>             <C>        <C>        <C>        <C>        <C>
Assets..........................................    $182,746      $178,345   $173,293   $159,157   $131,348   $94,728
Investment securities...........................    $ 13,026      $ 11,530   $  8,481   $  5,391   $  3,263   $ 3,565
Loans, net......................................    $138,539      $130,232   $129,993   $124,657   $105,900   $75,564
Deposits........................................    $122,860      $122,361   $136,209   $123,297   $106,371   $81,083
Borrowings......................................    $ 26,927      $ 24,074   $ 22,625   $ 23,392   $ 15,018   $ 8,161
Shareholders' equity............................    $ 31,839      $ 30,920   $ 13,887   $ 11,813   $  9,391   $ 5,182
</TABLE>

                                       8
<PAGE>

<TABLE>
<CAPTION>
                                                           NINE MONTHS
                                                              ENDED
                                                          SEPTEMBER 30,                    YEAR ENDED DECEMBER 31,
                                                       -------------------   ----------------------------------------------------
                                                         1999       1998       1998       1997       1996       1995       1994
                                                       --------   --------   --------   --------   --------   --------   --------
<S>                                                    <C>        <C>        <C>        <C>        <C>        <C>        <C>
OTHER FINANCIAL DATA
Return on average assets.............................     .43%      1.26%      1.24%      1.28%      1.75%      1.90%      1.57%
Return on average shareholders' equity...............    2.35%      8.94%      8.34%     16.65%     23.93%     26.06%     30.21%
Cash dividends:
  Dividend payout ratio per common share.............   38.46%      9.09%     10.53%      6.41%      4.12%      3.61%      3.85%
</TABLE>

<TABLE>
<CAPTION>
                                                                                                DECEMBER 31,
                                                            SEPTEMBER 30,   ----------------------------------------------------
                                                                1999          1998       1997       1996       1995       1994
                                                            -------------   --------   --------   --------   --------   --------
<S>                                                         <C>             <C>        <C>        <C>        <C>        <C>
Total shareholders' equity as a percentage of total
  assets..................................................      17.42%       17.34%       8.01%      7.42%      7.15%      5.47%
Nonperforming assets as a percentage of total assets......       1.67%        1.86%       1.39%       .36%       .25%       .22%
Allowance for loan losses as a percentage of:
  Nonaccrual loans........................................      69.73%       66.28%     103.85%    465.36%    743.88%    643.58%
  Nonperforming assets....................................      68.48%       54.66%      81.51%    328.82%    540.80%    548.57%
</TABLE>

                                       9
<PAGE>
                    SUMMARY FINANCIAL DATA OF NORTHERN BANK

    Northern Bank is providing the following information to aid you in your
analysis of the financial aspects of the merger. Northern Bank derived the
information for the periods ended, and as of, December 31, 1994 through
December 31, 1998 from its historical audited financial statements for those
fiscal periods. Northern Bank derived the financial information for the nine
months ended September 30, 1998 and September 30, 1999 and as of September 30,
1999, from its unaudited financial statements that include, in the opinion of
management, all normal and recurring adjustments that management considers
necessary for a fair statement of the results. The operating results for the
nine months ended September 30, 1999 do not necessarily indicate the results
that may be expected for the year ending December 31, 1999. This information is
only a summary and you should read it in conjunction with Northern Bank's
financial statements and related notes contained in Appendix B to this joint
proxy statement.

<TABLE>
<CAPTION>
                                                                                                                     PERIOD FROM
                                                  NINE MONTHS                                                         INCEPTION
                                                     ENDED                                                           (AUGUST 22,
                                                 SEPTEMBER 30,                  YEAR ENDED DECEMBER 31,                1994) TO
                                             ---------------------   ---------------------------------------------   DECEMBER 31,
                                               1999        1998        1998        1997        1996        1995          1994
                                             ---------   ---------   ---------   ---------   ---------   ---------   ------------
                                                               (DOLLARS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
<S>                                          <C>         <C>         <C>         <C>         <C>         <C>         <C>
Interest income............................  $   4,692   $   3,763   $   5,158   $   3,974   $   3,327   $   1,567    $     129
Interest expense...........................      1,949       1,539      (2,152)     (1,623)     (1,347)       (474)          (9)
                                             ---------   ---------   ---------   ---------   ---------   ---------    ---------
Net interest income........................      2,743       2,224       3,006       2,351       1,980       1,093          120
Provision for loan losses..................        779          75        (683)       (205)        (99)       (135)         (11)
Noninterest income.........................        100          63         184         229          32           2           --
Noninterest expense........................      2,260       1,740      (2,409)     (2,067)     (2,073)     (1,706)        (521)
                                             ---------   ---------   ---------   ---------   ---------   ---------    ---------
Income (loss) before income taxes,
  extraordinary items, cumulative effect of
  accounting changes, and minority
  interest.................................       (196)        472          98         308        (160)       (746)        (412)
Income taxes (Benefit).....................         --        (139)         22         119         195          --           --
                                             ---------   ---------   ---------   ---------   ---------   ---------    ---------
Net income (loss)..........................  $    (196)  $     333   $     120   $     427   $      35   $    (746)   $    (412)
Basic earnings (loss) per share............  $   (0.16)  $    0.28   $    0.10   $    0.37   $    0.03   $   (0.65)   $   (0.36)
Diluted earnings (loss) per share..........  $   (0.16)  $    0.24   $    0.09   $    0.32   $    0.03   $   (0.65)   $   (0.36)
Average number of shares used to calculate
  net earnings (loss) per share:
  Basic....................................  1,225,597   1,178,982   1,194,517   1,152,820   1,150,672   1,150,672    1,150,672
  Diluted..................................  1,225,597   1,389,026   1,325,517   1,353,413   1,150,672   1,150,672    1,150,672
</TABLE>

<TABLE>
<CAPTION>
                                                                          DECEMBER 31,                  (PARTIAL YEAR)
                                            SEPTEMBER 30,   -----------------------------------------   --------------
                                                1999          1998       1997       1996       1995          1994
                                            -------------   --------   --------   --------   --------   --------------
                                                         (DOLLARS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
<S>                                         <C>             <C>        <C>        <C>        <C>        <C>
Assets....................................     $60,987      $61,140    $44,530    $41,746    $23,849        $6,871
Investment securities.....................     $ 4,720      $ 1,108    $ 2,048    $ 6,224    $ 3,790        $4,680
Loans, net................................     $49,012      $50,508    $40,702    $30,562    $17,969        $  800
Deposits..................................     $56,024      $56,223    $40,206    $37,952    $20,085        $2,420
Borrowings................................          --           --         --         --         --            --
Shareholders' equity......................     $ 4,509      $ 4,735    $ 4,212    $ 3,726    $ 3,686        $4,433
</TABLE>

                                       10
<PAGE>

<TABLE>
<CAPTION>
                                                NINE MONTHS
                                                   ENDED
                                               SEPTEMBER 30,               YEAR ENDED DECEMBER 31,            (PARTIAL YEAR)
                                            -------------------   -----------------------------------------   --------------
                                              1999       1998       1998       1997       1996       1995          1994
                                            --------   --------   --------   --------   --------   --------   --------------
<S>                                         <C>        <C>        <C>        <C>        <C>        <C>        <C>
OTHER FINANCIAL DATA
Return on average assets..................   (0.38)%     0.86%      0.22%       1.02%      0.11%     (3.56)%      (25.59)%
Return on average shareholders' equity....   (5.51)%     9.93%      2.59%      10.83%      0.98%    (16.19)%      (36.34)%
Cash dividends:
  Dividend payout ratio per common
    share.................................                             0%          0%         0%         0%            0%
</TABLE>

<TABLE>
<CAPTION>
                                                                                DECEMBER 31,
                                            SEPTEMBER 30,   ----------------------------------------------------
                                                1999          1998       1997       1996       1995       1994
                                            -------------   --------   --------   --------   --------   --------
<S>                                         <C>             <C>        <C>        <C>        <C>        <C>
Total shareholders' equity as a percentage
  of total assets.........................       7.39%         7.74%      9.46%     8.93%     15.46%     64.52%
Nonperforming assets as a percentage of
  total assets............................       2.87%         1.83%      0.11%       --         --         --
Reserve for loan losses as a percentage
  of:
Nonaccrual loans..........................     502.57%       241.99%        --        --         --         --
Nonperforming assets......................     107.63%        98.53%    836.62%       --         --         --
</TABLE>

                                       11
<PAGE>
            SUMMARY HISTORICAL AND PRO FORMA COMBINED FINANCIAL DATA

    The following table sets forth certain selected historical financial data
for Cowlitz Bancorp and Northern Bank and selected pro forma combined financial
data. The pro forma amounts included in the table below give effect to the
merger, accounted for as a purchase as if it had been completed on January 1,
1998 for income statement information and September 30, 1999 for balance sheet
information.

    This information should be read in conjunction with and is qualified in its
entirety by reference to the consolidated financial statements and related notes
for Cowlitz Bancorp contained in Appendix A, the consolidated financial
statements and related notes of Northern Bank contained in Appendix B, and the
pro forma combined financial statements and accompanying discussion and notes
set forth under "Pro Forma Combined Financial Information." The pro forma
amounts in the table below are presented for informational purposes and are not
necessarily indicative of the financial position or the results of operations of
the combined company that actually would have occurred had the merger been
completed as of the dates or for the periods presented. The pro forma amounts
are also not necessarily indicative of the future financial position or future
results of operations of the combined company. See "Management and Operations of
Cowlitz Bancorp Following the Merger--Operations After the Merger."

<TABLE>
<CAPTION>
                                       HISTORICAL                          HISTORICAL
                                  ---------------------               ---------------------
                                    NINE MONTHS ENDED                      YEAR ENDED
                                   SEPTEMBER 30, 1999                   DECEMBER 31, 1998
                                  ---------------------   PRO FORMA   ---------------------   PRO FORMA
                                   COWLITZ    NORTHERN    COMBINED     COWLITZ    NORTHERN    COMBINED
                                  ---------   ---------   ---------   ---------   ---------   ---------
<S>                               <C>         <C>         <C>         <C>         <C>         <C>
Interest income.................  $  12,446   $   4,692   $  17,138   $  16,366   $   5,158   $  21,524
Interest expense................      4,190       1,949       6,139       6,501       2,152       8,653
                                  ---------   ---------   ---------   ---------   ---------   ---------
Net interest income.............      8,256       2,743      10,999       9,865       3,006      12,871
Provision for loan losses.......      1,065         779       1,844         509         683       1,192
Noninterest income..............      1,200         100       1,300         978         184       1,162
Noninterest expense.............      7,499       2,260      10,123       6,927       2,409       9,822
                                  ---------   ---------   ---------   ---------   ---------   ---------
Income (loss) before income
  taxes, extraordinary items,
  cumulative effect of
  accounting changes, and
  minority interest.............        892        (196)        332       3,407          98       3,019
Income taxes (Benefit)..........        341          --         266       1,181         (22)      1,159
                                  ---------   ---------   ---------   ---------   ---------   ---------
Net income (loss)...............  $     551   $    (196)  $      66   $   2,226   $     120   $   1,860
                                  =========   =========   =========   =========   =========   =========
Basic earnings (loss) per
  share.........................  $    0.14   $   (0.16)  $     .01   $    0.60   $    0.10   $    0.40
Diluted earnings (loss) per
  share.........................  $    0.13   $   (0.16)  $     .01   $    0.57   $    0.09   $    0.39
Average number of shares used to
  calculate earnings (loss) per
  share:
  Basic.........................  4,046,872   1,225,597   4,960,047   3,715,901   1,194,517   4,629,076
  Diluted.......................  4,104,249   1,225,597   5,017,424   3,894,095   1,325,517   4,808,036
</TABLE>

<TABLE>
<CAPTION>
                                                              SEPTEMBER 30, 1999
                                                              -------------------   PRO FORMA
                                                              COWLITZ    NORTHERN   COMBINED
                                                              --------   --------   ---------
<S>                                                           <C>        <C>        <C>
Assets......................................................  $182,746   $60,987    $245,047
Investment securities.......................................  $ 13,026   $ 4,720    $ 17,746
Loans, net..................................................  $138,539   $49,012    $187,551
Deposits....................................................  $122,860   $56,024    $178,884
Borrowings..................................................  $ 26,927   $    --    $ 26,927
Shareholders' equity........................................  $ 31,839   $ 4,509    $ 37,279
</TABLE>

                                       12
<PAGE>
                 SELECTED UNAUDITED COMPARATIVE PER SHARE DATA

The following table shows certain per share data of Cowlitz Bancorp common stock
and Northern Bank common stock on an historical basis and a pro forma and pro
forma equivalent basis reflecting the merger. This information is only a summary
and you should read it in conjunction with the financial information appearing
elsewhere in this joint proxy statement. The per share pro forma data in the
following table are presented for comparative purposes only and are not
necessarily indicative of the combined financial position or results of
operations in the future or what the combined financial position or results of
operations would have been had the merger been completed during the period or as
of the date for which this pro forma table is presented.

<TABLE>
<CAPTION>
                                                AT OR FOR THE NINE MONTHS ENDED   AT OR FOR THE YEAR ENDED
                                                      SEPTEMBER 30, 1999             DECEMBER 31, 1998
                                                -------------------------------   ------------------------
<S>                                             <C>                               <C>
COWLITZ BANCORP COMMON STOCK
  Book value per share
    Historical................................              $ 7.79                          $7.73
    Pro forma.................................              $ 7.45                          $7.50
  Cash dividends per share
    Historical................................              $ 0.05                          $0.06
    Pro forma.................................              $ 0.05                          $0.06
  Net income per basic share
    Historical................................              $ 0.14                          $0.60
    Pro forma.................................              $ 0.01                          $0.40
  Net income per diluted share
    Historical................................              $ 0.13                          $0.57
    Pro forma.................................              $ 0.01                          $0.39

NORTHERN BANK COMMON STOCK
  Book value per share
    Historical................................              $ 3.68                          $3.86
    Pro forma equivalent(1)...................              $ 5.55                          $5.59
  Cash dividends per share
    Historical................................                  --                             --
    Pro forma equivalent(1)...................              $ 0.04                          $0.05
  Net income (loss) per basic share
    Historical................................              $(0.16)                         $0.10
    Pro forma equivalent(1)...................              $ 0.01                          $0.30
  Net income (loss) per diluted share
    Historical................................              $(0.16)                         $0.09
    Pro forma equivalent(1)...................              $ 0.01                          $0.29
</TABLE>

------------------------

(1) The Northern Bank pro forma equivalent per share amounts are calculated by
    multiplying the Cowlitz Bancorp pro forma per share amounts by an assumed
    exchange ratio of 0.745086 at September 30, 1999. While the merger agreement
    provides for an exchange ratio of 0.825842 based Northern Bank's
    shareholders' equity as of June 30, 1999, the merger agreement also provides
    that this ratio will be reduced if Northern Bank's shareholders' equity at
    closing is less than $4,718,841. At September 30, 1999, Northern Bank's
    shareholders' equity (as adjusted for estimated closing expenses of
    $158,000) was $4,350,703. Accordingly, for purposes of calculating the
    Northern Bank pro forma equivalent per share amounts, the exchange ratio was
    reduced in accordance with the formula set forth in the merger agreement
    based on Northern Bank's shareholders' equity at September 30, 1999 (as
    adjusted for estimated closing expenses).

                                       13
<PAGE>
               COMPARATIVE MARKET PRICES AND DIVIDEND INFORMATION

    The table below sets forth, for the periods indicated, historical high and
low closing sales price information for Cowlitz Bancorp common stock and
Northern Bank common stock. Cowlitz Bancorp common stock commenced trading on
The Nasdaq National Market on March 12, 1998 under the symbol "CWLZ." Northern
Bank common stock trades on The Nasdaq Small Cap Market under the symbol "NBOC."

<TABLE>
<CAPTION>
                                                             COWLITZ BANCORP        NORTHERN BANK
                                                              COMMON STOCK          COMMON STOCK
                                                           -------------------   -------------------
                                                             HIGH       LOW        HIGH       LOW
                                                           --------   --------   --------   --------
<S>                                                        <C>        <C>        <C>        <C>
1997
First Quarter............................................                        $ 6.50     $5.25
Second Quarter...........................................                          6.50      5.63
Third Quarter............................................                          8.25      5.81
Fourth Quarter...........................................                         11.75      7.63
1998
First Quarter............................................  $13.19      $12.00    $10.88     $8.75
Second Quarter...........................................   14.13       11.88      9.88      7.75
Third Quarter............................................   12.13        7.75      9.63      8.00
Fourth Quarter...........................................    9.00        7.25      8.88      6.94
1999
First Quarter............................................  $ 8.00      $ 6.44    $ 8.00     $5.75
Second Quarter...........................................    7.13        6.00      7.50      6.00
Third Quarter............................................    7.00        5.13      6.38      4.00
Fourth Quarter (through November 22, 1999)...............    6.50        5.13      4.63      3.81
</TABLE>

RECENT CLOSING PRICES

    The following table sets forth the closing sale price per share of Cowlitz
Bancorp common stock and Northern Bank common stock, and the equivalent per
share price for the Northern Bank common stock (which is the closing sale price
of Cowlitz Bancorp common stock multiplied by an assumed exchange ratio of
0.745086 shares of Cowlitz Bancorp common stock based on Northern Bank's
shareholders' equity as of September 30, 1999 (as adjusted for estimated closing
expenses of $158,000) plus the cash portion of the merger consideration) as of
September 13, 1999 (the last full trading day before the public announcement of
the merger) and       , 1999 (the last full trading day for which it was
practicable to obtain such information prior to the mailing of this joint proxy
statement):

<TABLE>
<CAPTION>
                                                                           NORTHERN BANK   EQUIVALENT
                                                         COWLITZ BANCORP      COMMON       PER SHARE
                                                          COMMON STOCK         STOCK         PRICE
                                                         ---------------   -------------   ----------
<S>                                                      <C>               <C>             <C>
September 13, 1999.....................................       $5.25            $ 4.63         $5.54
                .......................................       $                $              $
</TABLE>

    You are urged to obtain current market quotations for Cowlitz Bancorp common
stock and Northern Bank common stock. Because the number of shares of Cowlitz
Bancorp common stock to be exchanged for each share of Northern Bank common
stock is based on a fixed value for Cowlitz Bancorp common stock of $6.563, any
decrease in the market price of Cowlitz Bancorp common stock before the
effective date of the merger will reduce the market value of the stock
consideration to be received by Northern Bank shareholders in the merger.
Conversely, an increase above that price will increase the market value of the
stock consideration.

                                       14
<PAGE>
DIVIDEND INFORMATION

    The following sets forth dividends paid by Cowlitz Bancorp on a per share
basis:

<TABLE>
<CAPTION>
                                                             YEAR ENDED DECEMBER 31
                                                         ------------------------------
                                                           1999       1998       1997
                                                         --------   --------   --------
<S>                                                      <C>        <C>        <C>
First Quarter..........................................   $.015      $.013      $.010
Second Quarter.........................................    .018       .015       .013
Third Quarter..........................................    .018       .015       .013
Fourth Quarter.........................................      --       .015       .013
</TABLE>

    Cowlitz Bancorp's board of directors' dividend policy is to review Cowlitz
Bancorp's financial performance, capital adequacy, regulatory compliance and
cash resources, and if such review is favorable, to declare and pay a cash
dividend to shareholders quarterly. Although Cowlitz Bancorp anticipates paying
a regular quarterly cash dividend, future dividends are subject to these
limitations and to the discretion of Cowlitz Bancorp's board of directors, and
may be reduced or eliminated. Cowlitz Bancorp's ability to pay cash dividends to
its shareholders is dependent on earnings generated by Cowlitz Bank and Cowlitz
Bancorp's other subsidiaries. Washington and federal banking laws and
regulations place restrictions on the payment of dividends by a bank to its
shareholders.

    Under Oregon law and its governing documents, Northern Bank's board of
directors has the authority to declare cash dividends out of surplus earnings.
However, Northern Bank's board of directors has never declared a cash dividend
and currently is prohibited from doing so by the cease and desist orders issued
by the FDIC and the Oregon Department of Consumer and Business Services, as
described in "Risk Factors-Northern Bank is operating under regulatory orders"
below. On March 31, 1998 Northern Bank declared a 15% stock dividend in the form
of a 11 1/2-for-10 stock split payable on April 20, 1998 to shareholders of
record on March 31, 1998.

                                       15
<PAGE>
                                  RISK FACTORS

    YOU SHOULD CAREFULLY CONSIDER THE FOLLOWING RISK FACTORS AND ALL OTHER
INFORMATION CONTAINED IN THIS JOINT PROXY STATEMENT BEFORE VOTING TO APPROVE THE
MERGER OR THE SHARE ISSUANCE NECESSARY TO COMPLETE THE MERGER. APPROVAL OF THE
MERGER BY NORTHERN BANK SHAREHOLDERS REPRESENTS AN INVESTMENT IN COWLITZ
BANCORP'S COMMON STOCK, AND THAT INVESTMENT INVOLVES A HIGH DEGREE OF RISK. IN
ADDITION, THE MERGER POSES A NUMBER OF RISKS TO COWLITZ BANCORP SHAREHOLDERS
WHICH ARE ALSO DESCRIBED BELOW. ANY OF THE FOLLOWING FACTORS MAY SERIOUSLY HARM
BUSINESS AND RESULTS OF OPERATIONS OF COWLITZ BANCORP AFTER THE MERGER OR BE
DETRIMENTAL TO THE VALUE OF COWLITZ BANCORP COMMON STOCK AND THE CONSIDERATION
NORTHERN BANK SHAREHOLDERS RECEIVE IN THE MERGER. MOREOVER, IN DETERMINING
WHETHER TO APPROVE THE MERGER, NORTHERN BANK SHAREHOLDERS SHOULD CONSIDER A
NUMBER OF FACTORS RELATED TO NORTHERN BANK'S CURRENT FINANCIAL AND OPERATING
CONDITION THAT MIGHT IMPACT NORTHERN BANK IF THE MERGER DOES NOT OCCUR.

COWLITZ BANCORP HAS RECENTLY EXPANDED ITS BUSINESS AND ITS RESULTS OF OPERATIONS
  MAY BE ADVERSELY AFFECTED.

    Cowlitz Bancorp has recently acquired two mortgage companies and an escrow
company and has established a DE NOVO bank branch in the greater Seattle,
Washington area. If the merger is completed, Cowlitz Bancorp will acquire nine
Northern Bank branches in the greater Portland area. Cowlitz Bancorp has not
operated in Portland or Seattle before, and there is substantially more
competition in those areas than in Cowlitz Bancorp's present service area.
Cowlitz Bancorp does not know if the financial services Cowlitz Bancorp offers
will be profitable in the face of that competition. In addition, Cowlitz Bancorp
has added new management personnel in connection with these acquisitions and
will need to hire additional management personnel in the future. Cowlitz Bancorp
cannot assure you that it will be able to hire qualified additional personnel or
that its new management personnel will perform satisfactorily.

    Cowlitz Bancorp's results of operations will be adversely affected in the
short term by the costs of these acquisitions and the start-up costs of the new
branches. Cowlitz Bancorp must amortize over future periods intangible assets
created in these acquisitions, and that amortization will adversely affect
Cowlitz Bancorp's future financial performance. Cowlitz Bancorp cannot assure
you that any of these businesses will be profitable or will provide a reasonable
return on Cowlitz Bancorp's investment in them. If these businesses are not
profitable or do not provide a reasonable return, Cowlitz Bancorp's long-term
profitability could be adversely affected.

THE ACQUISITION OF NORTHERN BANK MAY ADVERSELY AFFECT THE CREDIT QUALITY OF
  COWLITZ BANCORP'S LOAN PORTFOLIO AND MAY REQUIRE COWLITZ BANCORP TO INCREASE
  ITS ALLOWANCE FOR LOAN LOSSES.

    Northern Bank is presently subject to cease and desist orders from the
Federal Deposit Insurance Corporation and the Oregon Department of Consumer and
Business Services that cited, among other problems, operating with a large
volume of poor quality loans, operating with an inadequate allowance for loan
and lease losses and following inadequate lending and lax collection practices.
As a result of these problems, the level of loan losses that Northern Bank's
loan portfolio will incur is uncertain. Cowlitz Bancorp and Northern Bank have
negotiated the terms of the merger agreement to minimize exposure to Cowlitz
Bancorp by providing for a purchase price adjustment and an escrow arrangement
described in "The Merger--Payments of Cash; Escrow Arrangements" below. However,
Northern Bank and Cowlitz Bancorp cannot assure you that the level of loan loss
reserves established by Northern Bank or the loss indemnification provided
through the escrow arrangement will be sufficient to protect Cowlitz Bancorp
against possible losses in the Northern Bank loan portfolio. If actual loan
losses are greater than Northern Bank's loan loss reserves, Cowlitz Bancorp will
be entitled in most cases to reimbursement from the escrow account. However, to
the extent actual loan losses exceed both loan loss reserves and the escrowed
funds, Cowlitz Bancorp's operations will be affected adversely and those effects
may be material.

                                       16
<PAGE>
THE MERGER MAY BE TAXABLE TO NORTHERN BANK SHAREHOLDERS AND TO NORTHERN BANK.

    The actual purchase price for purposes of determining the merger
consideration will not be known prior to the Northern Bank shareholders'
meeting. Accordingly, we do not know as of the date of this joint proxy
statement the exact percentage of the merger consideration that will consist of
Cowlitz Bancorp stock. If a "substantial part" of the value of the aggregate
consideration paid to Northern Bank shareholders in the merger does not consist
of Cowlitz Bancorp stock, the merger may be fully taxable to Northern Bank and
to the Northern Bank shareholders. The exact proportion of the consideration
required to be paid in stock is unclear. For advance ruling purposes, the
Internal Revenue Service takes the position that the continuity of interest
requirement will be satisfied if at least 50% of the value of all of the
consideration payable in the merger consists of stock of the issuing
corporation. If the merger is taxable, a Northern Bank shareholder will
recognize gain or loss on the merger in an amount equal to the difference
between the total value of the merger consideration received by a shareholder
and the shareholder's basis in the Northern Bank stock exchanged in the merger.
In addition, Northern Bank will be treated as selling all of its assets to
Cowlitz Bank in a taxable sale and will recognize gain or loss with all taxes
due on any gain as a result of the merger to be paid by Cowlitz Bancorp. A
taxable transaction could have an adverse affect on Cowlitz Bancorp's results of
operations and shareholder's equity in 2000. In deciding whether to vote in
favor of the merger, NORTHERN BANK SHAREHOLDERS SHOULD CONSIDER BOTH THE
POSSIBILITY THAT THE TRANSACTION WILL BE FULLY TAXABLE TO THEM AND THE CONTRARY
POSSIBILITY THAT REORGANIZATION TREATMENT WILL ADVERSELY AFFECT THE
DEDUCTIBILITY OF ANY LOSSES THEY MAY HAVE. See "Federal Income Tax Consequences
of the Merger" for a discussion of the tax effects of the merger to Northern
Bank shareholders.

THE FINAL MERGER CONSIDERATION TO NORTHERN BANK SHAREHOLDERS WILL NOT BE
  DETERMINED BEFORE THE NORTHERN BANK SHAREHOLDERS' MEETING.

    The initial value of Northern Bank stock in the merger was set at $7.05 per
share, which was based on Northern Bank's shareholders' equity at June 30, 1999,
as calculated before Northern Bank restated its second quarter earnings in
September 1999. The amount of the stock merger consideration will be reduced in
accordance with a formula set forth in the merger agreement if Northern Bank's
shareholders' equity immediately prior to closing is less than $4,718,841. As of
September 30, 1999, Northern Bank's shareholders' equity (as adjusted for
estimated closing expenses of $158,000) was $4,350,703. If the closing of the
merger had occurred on that date, the total merger consideration would be $6.52
per share and the stock portion of that merger consideration would be $4.89 per
share. Northern Bank's shareholders' equity, and, consequently the relative
value of Northern Bank stock, may be reduced based on, among other things, any
operating losses Northern Bank experiences after September 30, 1999, including
any additional provision for loan losses required to be made under the merger
agreement based on a review of Northern Bank's loan portfolio that will be
conducted prior to the effective date of the merger. The loan review will be
performed by a third party examiner, followed by a dispute resolution process if
Northern Bank disagrees with the examiner's analysis. If it is determined that
Northern Bank requires additional loan loss reserves in excess of those
established at September 30, 1999, then Northern Bank's shareholders' equity
will be reduced. Accordingly, at the time Northern Bank shareholders vote to
accept or reject the merger agreement, they will not know the exact value that
will be placed on their shares for purposes of the merger. If Northern Bank's
shareholders' equity on the effective date is substantially less than
$4,718,841, then Northern Bank shareholders will receive substantially less than
$7.05 per share. In addition to the shareholders' equity adjustment, the total
merger consideration for each Northern Bank share will also be reduced if the
number of outstanding Northern Bank shares increases prior to the effective date
of the merger. See "The Merger--The Merger Consideration."

                                       17
<PAGE>
WHETHER NORTHERN BANK SHAREHOLDERS ULTIMATELY RECEIVE ANY OF THE CASH
  CONSIDERATION IN THE MERGER WILL DEPEND ON THE PERFORMANCE OF THE NORTHERN
  BANK LOAN PORTFOLIO FOLLOWING THE MERGER.

    All of the cash consideration payable to Northern Bank shareholders will be
placed in escrow to indemnify Cowlitz Bancorp for losses Cowlitz Bank suffers
during the two years after closing from certain Northern Bank loans that will be
identified before closing. Cowlitz Bancorp will be reimbursed from the escrow to
the extent that losses on these loans exceed thresholds established in the
merger agreement, up to the aggregate amount held in the escrow. Any amounts
remaining in the escrow on the second anniversary of the closing date, net of
expenses, will be distributed to the former Northern Bank shareholders. The
escrowed funds also may be used to offset losses in excess of reserves on those
identified loans where, in Cowlitz Bancorp's good faith estimate, further losses
are reasonably expected to occur following the release of escrow. Northern Bank
shareholders may not receive any of the cash consideration if the loan losses
exceed the loan loss reserve plus the escrowed reserve. Installment sale
reporting will not be available to defer the recognition of gain with respect to
the cash consideration paid to Northern Bank shareholders in connection with the
merger. As a result, the cash consideration placed into the escrow account will
be treated as received pro rata by the Northern Bank shareholders at the time of
the merger, and taken into account in determining the amount of gain if any, (or
the amount of loss in the case of a fully taxable transaction) that will be
recognized by a Northern Bank shareholder for the shareholder's taxable year in
which the merger takes place. This will be the case even though the Northern
Bank shareholders will not receive any cash unless and until it is paid out of
escrow, even though they ultimately may receive less than all, or even none of
the cash consideration. See "Federal Income Tax Consequences of the
Merger--Escrowed Cash."

THE VALUE OF COWLITZ BANCORP COMMON STOCK MAY BE LESS THAN ITS PRICE FOR
  PURPOSES OF THE MERGER.

    For purposes of determining the exchange ratio under the merger agreement,
Cowlitz Bancorp stock is valued at $6.563 per share in the merger agreement,
which was its closing price on June 30, 1999. The value of the merger
consideration to Northern Bank shareholders will therefore decrease if the price
of Cowlitz Bancorp stock at the effective date of the merger is less than $6.563
per share. As of             , 1999, the closing price of Cowlitz Bancorp common
stock was $      per share.

NORTHERN BANK IS OPERATING UNDER REGULATORY ORDERS.

    Northern Bank is currently operating under orders from the Oregon Department
of Consumer and Business Services and the Federal Deposit Insurance Corporation,
both issued on July 19, 1999. These orders require Northern Bank to take a
number of actions to address specific "unsafe and unsound" practices that
allegedly had occurred prior to that date. The orders, identified as "Cease and
Desist Orders," require Northern Bank, among other things, to improve its
management, improve the quality of its loan portfolio, adopt more specific loan
administration and collection procedures, and increase its capital reserves. The
merger is Northern Bank's principal method of complying with the orders and, if
the merger does not occur, Northern Bank will be required to adopt other
measures to meet the requirements of the orders. These other measures will
require Northern Bank to raise additional capital and hire experienced
management personnel. Northern Bank's management believes the costs of acquiring
additional capital would be prohibitive and can give no assurance capital would
be available on acceptable terms. Moreover, experienced bank managers are in
high demand and, as a result, the necessary personnel may not be available, or
Northern Bank may not be able to compensate them adequately to hire and retain
them. Finally, whether or not Northern Bank raises additional capital and
retains the necessary management personnel, many of the requirements set forth
in the orders would place heavy demands on management and the targets set in the
orders may be difficult to meet without the merger. If Northern Bank ultimately
fails to comply with the cease and desist orders, banking regulators may take a
number of actions that could be materially adverse to the financial interests of
Northern Bank shareholders, including taking control of the bank, appointing a
receiver, or forcing a sale of the bank or its assets. Any of these actions
could affect the value of Northern Bank's stock materially and adversely.

                                       18
<PAGE>
                              THE SPECIAL MEETINGS

GENERAL

    This joint proxy statement is being furnished to Cowlitz Bancorp
shareholders in connection with the solicitation of proxies by the Cowlitz
Bancorp board of directors for use at the special meeting to be held at
8:00 p.m., local time on Thursday, January 27, 2000 at the Red Lion Hotel, 510
Kelso Drive, Kelso, Washington, and at any adjournments or postponements of that
meeting. This joint proxy statement is also being furnished to Northern Bank
shareholders in connection with the solicitation of proxies by the Northern Bank
board of directors for use at the special meeting to be held at 9:00 a.m., local
time on Thursday, January 27, 2000 at the University Club, 1225 SW 6th Avenue,
Portland, Oregon 97204, and at any adjournments or postponements of that
meeting.

MATTERS TO BE CONSIDERED AT THE SPECIAL MEETINGS

    COWLITZ BANCORP.  The purpose of the Cowlitz Bancorp special meeting is to
consider and vote upon a proposal to approve the issuance of up to 1,243,615
shares of Cowlitz Bancorp common stock in connection with a proposed merger of
Northern Bank into Cowlitz Bancorp's wholly-owned subsidiary, Cowlitz Bank.

    NORTHERN BANK.  The purpose of the Northern Bank special meeting is to
consider and vote on a proposal to approve the merger agreement dated
September 14, 1999, by and among Cowlitz Bancorp, Cowlitz Bancorp's wholly-owned
subsidiary, Cowlitz Bank, and Northern Bank, which provides for the merger of
Northern Bank into Cowlitz Bank.

RECORD DATE AND VOTING

    COWLITZ BANCORP.  The Cowlitz Bancorp board of directors has fixed
November 30, 1999 as the record date for determining Cowlitz Bancorp
shareholders entitled to notice of and to vote at the Cowlitz Bancorp special
meeting. At the close of business on the record date, there were approximately
      shares of Cowlitz Bancorp common stock outstanding, held by approximately
   holders of record. Each share of Cowlitz Bancorp common stock is entitled to
one vote. Only shareholders of record at the close of business on the Cowlitz
Bancorp record date will be entitled to notice of and to vote at the Cowlitz
Bancorp special meeting.

    NORTHERN BANK.  The Northern Bank board of directors has fixed November 30,
1999 as the record date for determining the Northern Bank shareholders entitled
to notice of and to vote at the Northern Bank special meeting. At the close of
business on the record date, there were approximately       shares of Northern
Bank common stock outstanding, held by approximately       holders of record.
Each share of Northern Bank common stock is entitled to one vote. Only Northern
Bank shareholders of record at the close of business on the Northern Bank record
date will be entitled to vote at the Northern Bank special meeting.

PROXIES AND VOTING INSTRUCTIONS

    COWLITZ BANCORP.  All shares of Cowlitz Bancorp common stock represented by
proxies that are properly completed, dated and executed will be voted at the
Cowlitz Bancorp special meeting in the specified manner. If no specification is
made in a proxy, the shares of Cowlitz Bancorp common stock represented by that
proxy will be voted "FOR" approval of the issuance of common stock in the
merger. Brokers who hold shares in nominee or "street" name for customers who
are the beneficial owner may not give a proxy to vote these shares without
specific instructions from their customers. However, since only the vote of a
majority of the shares voting at the special meeting, provided a quorum is
present, is required to approve the issuance of shares necessary to complete the
merger, these broker non-votes will be disregarded and will have no effect on
the outcome of the vote on the share issuance.

                                       19
<PAGE>
    As of the date of this joint proxy statement, the Cowlitz Bancorp board of
directors is not aware of any business to be acted upon at the Cowlitz Bancorp
special meeting other than approval of the share issuance. If, however, any
other matters properly come before the Cowlitz Bancorp special meeting, the
proxy also confers discretionary authority on the persons named as proxies to
vote upon these matters. Cowlitz Bancorp shareholders may revoke their proxies
at any time before they are exercised by:

    - delivering written notice of revocation to the corporate secretary of
      Cowlitz Bancorp;

    - completing and submitting a later-dated proxy card; or

    - attending the special meeting and voting in person.

    Written revocation notices and other communications about proxies should be
addressed to Cowlitz Bancorporation, 927 Commerce Avenue, Longview, Washington
98632, Attention: Corporate Secretary.

    NORTHERN BANK.  All shares of Northern Bank common stock represented by
proxies that are properly completed, dated and executed will be voted at the
Northern Bank special meeting in the specified manner. If no specification is
made in a proxy, the shares of Northern Bank common stock represented by that
proxy will be voted "FOR" approval of the merger agreement. Brokers who hold
shares in nominee or "street" name for customers who are the beneficial owners
of those shares may not give a proxy to vote these shares without specific
instructions from their customers. Therefore, the failure of beneficial owners
of shares held in "street name" to give voting instructions to their broker will
result in a broker non-vote. Since approval of the merger agreement requires the
approval of two-thirds of the outstanding shares of Northern Bank stock, all
abstentions and broker non-votes will have the same effect as a "NO" vote on the
merger agreement.

    As of the date of this proxy statement, the Northern Bank board of directors
is not aware of any business to be acted upon at the Northern Bank special
meeting other than the merger agreement. If, however, any other matters properly
come before the Northern Bank special meeting, the proxy also confers
discretionary authority on the persons named as proxies to vote upon those
matters. Northern Bank shareholders may revoke their proxies at any time before
they are exercised by:

    - delivering written notice of revocation to the corporate secretary of
      Northern Bank;

    - completing and submitting a later-dated proxy card; or

    - attending the special meeting and voting in person.

    Written revocation notices and other communications about proxies should be
addressed to Northern Bank of Commerce, 1001 Southwest Fifth Avenue, Suite 250,
Portland, Oregon 97204, Attention: Corporate Secretary.

QUORUM; VOTES REQUIRED

    COWLITZ BANCORP.  The presence, in person or represented by proxy, of the
holders of a majority of the outstanding Cowlitz Bancorp shares will constitute
a quorum at the Cowlitz Bancorp special meeting. Shares of Cowlitz Bancorp
common stock that are present in person or represented by proxy will be counted
for purposes of determining whether a quorum exists regardless of whether the
holder of any of these shares fails to or abstains from voting on the share
issuance or whether a broker holding any of these shares in "street" name has
not been given specific instructions for voting those shares.

    Under Nasdaq rules, assuming a quorum is present, the approval of the
issuance of common stock in the merger will require the affirmative vote of the
holders of a majority of the shares of Cowlitz Bancorp common stock voting at
the meeting. As described in "The Merger--Conditions to Completion of the
Merger," shareholder approval is a condition to completion of the merger.

                                       20
<PAGE>
    As of the Cowlitz Bancorp record date, directors and executive officers of
Cowlitz Bancorp and their affiliates beneficially owned and were entitled to
vote             shares of Cowlitz Bancorp common stock, which represented
approximately       % of the shares of Cowlitz Bancorp common stock. Each
Cowlitz Bancorp director and executive officer has indicated that he or she
intends to vote his or her shares of Cowlitz Bancorp common stock "FOR" approval
of the share issuance.

    NORTHERN BANK.  The presence, in person or represented by proxy, of the
holders of a majority of the outstanding Northern Bank shares will constitute a
quorum at the Northern Bank special meeting. Shares of Northern Bank common
stock that are present in person or represented by proxy will be counted for
purposes of determining whether a quorum exists regardless of whether the holder
of any of these shares fails to or abstains from voting on the merger agreement
or whether a broker holding any of these shares in "street" name has been given
instructions for voting those shares.

    Under Oregon law and under Northern Bank's Bylaws, approval of the merger
agreement requires the affirmative vote of the holders of two-thirds of the
shares of Northern Bank common stock entitled to vote at the Northern Bank
special meeting. BECAUSE APPROVAL OF THE MERGER REQUIRES THE AFFIRMATIVE VOTE OF
TWO-THIRDS OF THE OUTSTANDING NORTHERN BANK SHARES ENTITLED TO VOTE AT THE
SPECIAL MEETING, ABSTENTIONS AND BROKER NON-VOTES WILL HAVE THE SAME EFFECT AS
VOTING AGAINST THE MERGER AGREEMENT.

    As of the Northern Bank record date, directors and executive officers of
Northern Bank and their affiliates beneficially owned and were entitled to vote
      shares of Northern Bank common stock, which represented   % of the shares
of Northern Bank common stock entitled to vote at the special meeting. Each
Northern Bank director and executive officer has indicated that he or she
intends to vote his or her shares of Northern Bank common stock "FOR" approval
of the merger agreement.

SOLICITATION OF PROXIES

    Each of Cowlitz Bancorp and Northern Bank will bear the cost of soliciting
proxies from its own shareholders, and each will bear a portion of the printing
costs for this joint proxy statement attributable to its communications with its
own shareholders. In addition to solicitation by mail, the directors, officers
and employees of Cowlitz Bancorp and Northern Bank and their affiliates may,
without being additionally compensated, solicit proxies from their shareholders
by telephone, telegram, facsimile or in person. Arrangements will also be made
with brokerage houses and other custodians, nominees and fiduciaries to forward
solicitation materials to the beneficial owners of stock for which those
entities are holders of record, and Cowlitz Bancorp and Northern Bank will
reimburse these entities for their resulting out-of-pocket expenses.

    Cowlitz has retained ChaseMellon Shareholder Services to assist it in
communicating with its shareholders with respect to, and to provide other
services to Cowlitz in connection with, the Cowlitz special meeting. ChaseMellon
Shareholder Services will receive up to $5,000 for its services and
reimbursement of out-of-pocket expenses in connection with these services.
Cowlitz has agreed to indemnify ChaseMellon Shareholder Services against
liabilities arising out of or in connection with its engagement.

    Northern Bank has retained W.F. Doring & Company to assist it in
communicating with its shareholders with respect to, and to provide other
services to Northern Bank in connection with, the Northern Bank special meeting.
Doring will receive up to $5,000, for its services and reimbursement of
out-of-pocket expenses in connection with these services. Northern Bank has
agreed to indemnify Doring against specified liabilities arising out of or in
connection with its engagement.

    SHAREHOLDERS ARE REQUESTED TO SIGN, DATE AND RETURN THE ACCOMPANYING PROXY
CARD PROMPTLY IN THE ENCLOSED POSTAGE-PREPAID ENVELOPE. SHAREHOLDERS WHOSE
SHARES ARE HELD THROUGH A BROKER ARE REQUESTED TO FOLLOW THE INSTRUCTIONS
FORWARDED TO THEM BY THEIR BROKER.

    NORTHERN BANK SHAREHOLDERS SHOULD NOT SEND STOCK CERTIFICATES WITH THEIR
PROXY CARDS. IF THE MERGER IS COMPLETED, NORTHERN BANK SHAREHOLDERS WILL RECEIVE
INSTRUCTIONS REGARDING THE PROPER PROCEDURES TO EXCHANGE THEIR STOCK
CERTIFICATES. SEE "THE MERGER--THE MERGER CONSIDERATION--CONVERSION OF NORTHERN
BANK COMMON STOCK."

                                       21
<PAGE>
                                   THE MERGER

    THIS SECTION DESCRIBES MATERIAL ASPECTS OF THE PROPOSED MERGER INCLUDING THE
MERGER AGREEMENT. WHILE WE BELIEVE THAT THE DESCRIPTION IN THIS SECTION COVERS
THE MATERIAL TERMS OF THE MERGER AND THE RELATED TRANSACTIONS, THIS SUMMARY MAY
NOT CONTAIN ALL OF THE INFORMATION THAT IS IMPORTANT TO YOU. YOU SHOULD READ THE
MERGER AGREEMENT INCLUDED AS APPENDIX C TO THIS JOINT PROXY STATEMENT AND OTHER
DOCUMENTS WE REFER TO CAREFULLY FOR A MORE COMPLETE UNDERSTANDING OF THE MERGER.

GENERAL

    The boards of directors of Cowlitz Bancorp, Cowlitz Bank and Northern Bank
have approved a merger agreement which provides for the merger of Northern Bank
into Cowlitz Bank. At the effective date of the merger, the separate corporate
existence of Northern Bank will terminate and the surviving corporation of the
merger will be Cowlitz Bank. Although Northern Bank will not be a separate
corporation, Cowlitz Bank intends to operate Northern Bank as a separate
division following the merger.

THE MERGER CONSIDERATION

    CONVERSION OF NORTHERN BANK COMMON STOCK.  At the effective date of the
merger, each share of Northern Bank common stock, other than shares held in
Northern Bank's treasury, shares held directly or indirectly by Cowlitz Bancorp
or any of its subsidiaries (other than shares held in a fiduciary capacity or in
respect of a previous debt) and shares as to which Northern Bank shareholders
have perfected appraisal rights (see "--Appraisal Rights" below) will
automatically convert into the right to receive merger consideration of up to
$7.05 per share, subject to the possible reductions described below. The merger
consideration will consist of the following components:

    - $5.42 in the form of a number of shares of Cowlitz Bancorp common stock
      based on a $6.563 value for Cowlitz Bancorp common stock. Assuming the
      merger consideration is not reduced based on reductions in Northern Bank's
      shareholders' equity in the manner described below, 0.825842 shares of
      Cowlitz Bancorp stock will be issued in respect of each share of Northern
      Bank common stock; and

    - $1.63 in cash. However, as more fully described below, this amount will be
      deposited at closing on the Northern Bank shareholders' behalf into an
      escrow account to indemnify Cowlitz Bancorp for losses Cowlitz Bancorp
      incurs in the two year period following the merger as a result of
      identified Northern Bank loans, to the extent these losses exceed the
      thresholds established in the merger agreement. The escrowed funds also
      may be used to offset losses in excess of reserves on those identified
      loans where, in Cowlitz Bancorp's good faith estimate, further losses are
      reasonably expected to occur following the release of escrow. The cash
      remaining after this indemnification, net of expenses, will be paid to
      Northern Bank shareholders 24 months after the effective date of the
      merger. See "--Payment of Cash; Escrow Arrangements" below.

    REDUCTIONS TO THE MERGER CONSIDERATION BASED ON NORTHERN BANK'S
SHAREHOLDERS' EQUITY AND LOAN PORTFOLIO. The merger consideration is based on
Northern Bank's shareholders' equity on June 30, 1999, as calculated before
Northern Bank restated its financial condition as of that date. If Northern
Bank's shareholder's equity immediately prior to closing is equal to or greater
than $4,718,841, the portion of the merger consideration payable in Cowlitz
Bancorp stock will be $5.42 per share or 0.825842 shares of Cowlitz Bancorp
common stock per share. If Northern Bank's shareholders' equity immediately
prior to closing is less than $4,718,841, the portion of the merger
consideration payable in Cowlitz Bancorp stock will be reduced by the formula
described below. As of September 30, 1999, Northern Bank's shareholders' equity
(as adjusted for estimated closing expenses of $158,000) was $4,350,703. If the
closing of the merger had occurred on such date, the stock merger consideration
would have been reduced to $4.89 or 0.745086 shares of Cowlitz Bancorp common
stock for each Northern Bank share.

                                       22
<PAGE>
Northern Bank's shareholders' equity may be reduced as a result of, among other
things, operating losses Northern Bank incurs during the period between
September 30, 1999 and the effective date of the merger including any provisions
for additional loan losses required to be made under the merger agreement. Prior
to the effective date of the merger, Cowlitz Bancorp and Cowlitz Bank will
engage an independent loan examiner to review Northern Bank's loan portfolio and
to identify each loan that under standard commercial banking practices should be
classified as Special Mention, Substandard, Doubtful or Loss (as defined below).
This review may be followed by a dispute resolution process if Northern Bank
disagrees with the examiner's analysis. To the extent permitted by United States
generally accepted accounting principles, Northern Bank has agreed that it will
provide a reserve for each loan identified by the examiner equal to at least
(a) 5% of the principal amount of each loan classified as Special Mention;
(b) 15% of the principal amount of each loan classified as Substandard; (c) 50%
of the principal amount of each loan classified as Doubtful; and (d) 100% of the
principal amount of each loan classified as Loss. Northern Bank also will
provide a general reserve equal to at least 1 1/2% of the principal balance of
all its outstanding loans. If Northern Bank is required to provide additional
loan loss reserves to achieve the agreed-upon reserves as a result of the review
process, Northern Bank's shareholders' equity will be reduced by the amount of
these additional loan loss reserves. The merger consideration will then be
correspondingly reduced by an amount equal to 1.75 times the difference between
$4,718,841 and shareholders' equity immediately prior to the closing. The entire
reduction in the merger consideration described in this paragraph will be made
by reducing the stock component of the merger consideration.

    As used in the merger agreement and this joint proxy statement, the terms
"Special Mention, "Substandard," "Doubtful," and "Loss" have the following
meanings:

<TABLE>
<CAPTION>
CLASSIFICATION                                                  DESCRIPTION
--------------                                                  -----------
<S>                                            <C>
Special Mention..............................  Marginally acceptable business credit; some
                                               potential weakness. Generally undesirable
                                               business constituting an undue and
                                               unwarranted credit risk but not to the point
                                               of justifying a Substandard classification.
                                               While the asset is currently protected, it is
                                               potentially weak. No loss of principal or
                                               interest is envisioned. Potential weaknesses
                                               might include a weakening financial
                                               condition, an unrealistic repayment program,
                                               inadequate sources of funds, or lack of
                                               adequate collateral, credit information, or
                                               documentation. Company is undistinguished and
                                               mediocre.

Substandard..................................  Unacceptable business credit, normal
                                               repayment in jeopardy. While no loss of
                                               principal or interest is envisioned, there is
                                               a positive and well-defined weakness which
                                               jeopardizes collection of debt. The asset is
                                               inadequately protected by the current sound
                                               net worth and paying capacity of the obligor
                                               or pledged collateral. There may already have
                                               been a partial loss of interest.

Doubtful.....................................  Full payment questionable. Serious problems
                                               exist to the point where a partial loss of
                                               principal is likely. Weaknesses are so
                                               pronounced that on the basis of current
                                               information, conditions and values,
                                               collection is highly improbable.
</TABLE>

                                       23
<PAGE>

<TABLE>
<CAPTION>
CLASSIFICATION                                                  DESCRIPTION
--------------                                                  -----------
<S>                                            <C>
Loss.........................................  Expected total loss. An uncollectible asset
                                               or one of such little value it does not
                                               warrant classification as an active asset.
                                               Such an asset may, however, have recovery or
                                               salvage value, but not to the point where a
                                               write-off should be deferred, even though a
                                               partial recovery may occur in the future.
</TABLE>

    ADJUSTMENTS TO THE MERGER CONSIDERATION BASED ON THE NUMBER OF OUTSTANDING
NORTHERN BANK SHARES. Because the maximum amount of the total merger
consideration is fixed, the merger consideration per share may be reduced
further if the number of outstanding shares of Northern Bank common stock at the
effective date of the merger is greater than 1,225,597. Northern Bank has agreed
not to issue any additional shares prior to the effective date of the merger
except pursuant to stock options outstanding as of the date of the merger
agreement or issued in replacement of those options. Accordingly, any exercise
of Northern Bank stock options after September 14, 1999 would dilute the per
share amount of the merger consideration.

    TREASURY STOCK AND SHARES HELD BY COWLITZ BANCORP OR NORTHERN BANK.  Each
outstanding share of Northern Bank common stock held in Northern Bank's treasury
or owned directly or indirectly by Cowlitz Bancorp or Northern Bank or their
subsidiaries (other than shares held for others as a fiduciary or nominee and
shares beneficially owned by third parties and held in respect of a previous
debt) will be canceled at the effective date of the merger and will not affect
the calculation of the merger consideration.

    NORTHERN BANK COMMON STOCK OPTIONS.  Each option holder under Northern
Bank's stock option plan will have the right to exercise their option to the
extent vested, immediately prior to the effective date of the merger. Any
outstanding Northern Bank options that are not exercised as of the effective
date of the merger will be terminated without payment of any merger
consideration.

PAYMENT OF CASH; ESCROW ARRANGEMENTS

    On the effective date of the merger, the cash component of the merger
consideration will be deposited on behalf of Northern Bank shareholders into an
escrow account with             . A copy of the escrow agreement is attached to
this joint proxy statement as Appendix F and is incorporated by reference. The
escrowed funds will be used to indemnify Cowlitz Bancorp for losses and expenses
incurred in the two years following the merger from the loans in Northern Bank's
portfolio identified as requiring a specific reserve prior to the effective date
to the extent these losses and expenses exceed established thresholds. The
escrowed funds may also be used to offset losses in excess of reserves on those
identified loans where, in Cowlitz Bancorp's good faith estimate, further losses
are reasonably expected to occur following the release of escrow. The escrow
procedure permits Cowlitz Bancorp to be reimbursed if a loan loss exceeds the
corresponding loan loss reserve plus the 1 1/2% additional agreed-upon reserve
established for all Northern Bank loans, up to the total amount of the escrowed
funds. Northern Bank and Cowlitz Bancorp will each appoint two members to a
committee that will instruct the escrow agent about disbursement of escrowed
funds. The escrow will terminate when Cowlitz Bancorp has been reimbursed for
all losses identified during the two years following the effective date, or when
the escrowed funds have been exhausted. When the escrow terminates, if any funds
are left in the escrow account, each former Northern Bank shareholder who has
properly surrendered his or her Northern Bank stock certificates will be paid an
amount per share equal to (a) the amount remaining in the escrow account upon
its termination (after deducting all expenses and costs) divided by (b) the
number of shares of Northern Bank common stock outstanding at the effective date
of the merger, less shares for which appraisal rights have been perfected, as
described in "--Appraisal Rights" below. The cash consideration placed into the
escrow account will generally be

                                       24
<PAGE>
treated as received pro rata by the Northern Bank shareholders at the time of
the merger, and will therefore be subject to federal income tax at that time,
even though the Northern Bank shareholders may ultimately not receive any cash
unless and until it is paid to the shareholders, and may ultimately receive less
than all, or potentially none, of the cash. See "Certain Federal Income Tax
Consequences" below.

BACKGROUND OF THE MERGER

    Beginning in March of 1998, Cowlitz Bancorp began implementing its long term
strategy of establishing financial "hubs" in the Pacific Northwest region. As
part of this strategy, Cowlitz Bancorp established a loan/mortgage/trust office
in Vancouver, Washington and began to search for a bank that could serve as the
center of a "hub" in the Portland, Oregon area.

    Also in early 1998, Northern Bank's board of directors had determined that,
as a result of the increased complexity of its business, Northern Bank would
need additional capital for its business to continue to grow. On October 15,
1998, Northern Bank retained D.A. Davidson & Co., an investment banking firm
with experience in advising banks, to help Northern Bank raise additional
capital. Northern Bank initially planned to raise capital by making a secondary
public stock offering, and it developed disclosure materials and consulted with
D.A. Davidson & Co. throughout 1998 regarding a potential secondary offering.

    In early January 1999, Northern Bank, D.A. Davidson & Co., their respective
attorneys, and Northern Bank's auditing firm began developing registration and
listing applications and conducted discussions with the FDIC Division of Finance
and Nasdaq relating to the offering. However, as a result of the examination by
the FDIC and the Oregon Department of Consumer and Business Services, which
concluded on January 19, 1999, Northern Bank elected to terminate the public
offering and seek alternative means of strengthening its capital position. At
that time, Northern Bank's board of directors began exploring business
combinations as the primary means of addressing its capital and management
needs. On April 16, 1999, Northern Bank engaged D.A. Davidson & Co. to assist in
this process.

    On May 14, 1999, Charles W. Jarrett, the President and Chief Operating
Officer, and Benjamin Namatinia, the Chairman and Chief Executive Officer, of
Cowlitz Bancorp, met with John H. Holloway, Jr., then President and a Northern
Bank director, to discuss the possibility of Cowlitz Bank and Northern Bank
merging with Northern Bank serving as the central "hub" for financial services
in the greater Portland area. As a result of this meeting, both parties signed
mutual confidentiality agreements and began conducting due diligence
examinations of each other. As part of its investigation, Cowlitz Bancorp sent a
team of loan, financial and compliance experts to perform an on-site inspection
of Northern Bank and hired a third party consultant to help evaluate Northern
Bank's loan portfolio.

    Throughout June and July, Messrs. Jarrett and Namatinia had a series of
meetings with Mr. Holloway and William V. Spicer, Chairman of the Northern Bank
board of directors, regarding the potential terms of the transaction.
Mr. Holloway was Chairman of the Board of Directors until June 24, 1999;
Mr. Spicer was elected to that position on June 25, 1999.

    At a meeting on July 16, 1999, based on prior discussions and the results of
their due diligence examinations, the parties agreed to a basic transaction
structure with merger consideration equal to 1.75 times Northern Bank's
shareholders' equity as of June 30, 1999. The parties also agreed that the
merger consideration would be paid in Cowlitz Bancorp stock except for a portion
in cash that would be held in escrow after the merger to indemnify Cowlitz
Bancorp for loan losses. Following this meeting, Northern Bank terminated
discussions it had been engaged in with other potential merger partners.

    On July 19, 1999, Northern Bank voluntarily entered into Cease and Desist
Orders with the FDIC and the State of Oregon, related to Northern Bank's quality
of loans, loan and lease loss allowances

                                       25
<PAGE>
and lending and collection practice, as more fully described in "Information
Concerning Northern Bank--General" beginning on page B-1. These orders
underscored the need for Northern Bank to increase its capital, improve loan
administration and retain additional management personnel. As a result of these
orders and the recommendation of D.A. Davidson & Co., the Northern Bank board of
directors decided to proceed with negotiations leading to the merger of Northern
Bank into Cowlitz Bank.

    Following a subsequent meeting of the parties on July 22, 1999, both Cowlitz
Bancorp and Northern Bank conducted meetings of their boards of directors who
decided to proceed with the merger along the terms outlined above. After
receiving initial approval from their boards of directors, both parties
consulted with their attorneys and investment bankers, and Cowlitz Bancorp also
consulted with its accountants, to determine the best way to structure the
transaction and Cowlitz Bancorp instructed its attorneys to begin drafting the
merger agreement.

    Between July 23 and September 14, 1999, Cowlitz Bancorp's legal advisors
prepared and distributed drafts of the merger agreement and the related
documents and the parties negotiated the drafts and the details of the
transaction. During that period, the parties continued their due diligence
investigations and prepared disclosure schedules to the merger agreement.

    On August 20, 1999, Northern Bank received a letter from the Oregon
Department of Consumer and Business Services requiring it amend its June 30,
1999 call report to provide additional loan loss reserves. The effect of this
restatement was to reduce Northern Bank's shareholders' equity as of June 30,
1999. However, rather than reducing the amount of the merger consideration at
that time, the parties agreed to provide for an adjustment immediately prior to
closing based on Northern Bank's shareholders' equity, which would be triggered
if Northern Bank's earnings between June 30, 1999 and closing did not equal or
exceed this reduction.

    On September 1, 1999, representatives of Cowlitz Bancorp and Northern Bank
attended an all-hands meeting in Longview, Washington with their attorneys and
Arthur Andersen LLP, accountants for Cowlitz Bancorp, to conduct final
negotiations of the transaction.

    On September 10, 1999, the Northern Bank board of directors met to consider
the merger proposal. After considering the advice provided by its legal and
financial advisors and the opinion of D.A. Davidson & Co. as to the fairness of
the merger to the Northern Bank shareholders from a financial point of view, the
Northern Bank board of directors unanimously approved the merger.

    On September 14, 1999, the Cowlitz Bancorp board of directors met to
consider the merger proposal. After considering the advice provided by its legal
and financial advisors as to the structure of the transaction and the opinion
from Sage Capital that the merger was fair to the Cowlitz Bancorp shareholders
from a financial point of view, the Cowlitz Bancorp board of directors
unanimously approved the merger. The parties signed the definitive merger
agreement and publicly announced the merger that day.

REASONS FOR THE MERGER; RECOMMENDATIONS OF THE BOARDS OF DIRECTORS

    COWLITZ BANCORP.  In reaching its conclusion to approve the merger, the
Cowlitz Bancorp board of directors and the Cowlitz Bank board of directors
considered a number of factors. These considerations included: (a) the long term
strategy of the company; (b) the current financial condition and market strength
of Cowlitz Bank; (c) the possible future growth of Cowlitz Bank; (d) the current
financial condition and market strength of Northern Bank; (e) the future growth
potential of Northern Bank; (f) the opportunity to enter the Oregon financial
services market; and (g) the value of a financial services company with "hubs"
in the Seattle/Bellevue, Cowlitz County and Portland/Vancouver markets.

    The Cowlitz Bancorp board of directors believes that there is a need for a
strong, aggressive community oriented financial services company throughout the
Pacific Northwest. In order to be able to provide the wide range of financial
services that are necessary in markets that are quite diverse,

                                       26
<PAGE>
Cowlitz Bancorp has developed a strategy of establishing financial "hubs" in
major market areas. This strategy was first implemented in Cowlitz County by
bringing together a unique combination of financial services delivered in a
manner that was most appropriate for that local market area. Cowlitz Bancorp has
recently established its Puget Sound hub through the opening of Bay Bank and the
acquisition of Bay Mortgage-Seattle, Bay Mortgage-Bellevue and Bay Escrow
Company. The establishment of these hubs as functionally independent operating
units allows each hub to deliver the combination of financial services that is
appropriate for the local area. The establishment of the hubs also presents the
opportunity for Cowlitz Bancorp to diversify geographically and thus lessens the
risk that an adverse change in local economic conditions will materially affect
the company.

    The acquisition of Northern Bank will enable Cowlitz Bancorp to expand its
hub strategy to the Portland/Vancouver area. Under Oregon law, Cowlitz Bancorp
cannot establish a new branch in Oregon. To gain access to the Portland market,
Cowlitz Bancorp must acquire an existing Oregon chartered bank. Cowlitz Bancorp
believes that Northern Bank is an excellent fit, due to its personal-service
culture. In addition, Northern Bank is a commercial bank with an increasing
involvement in branching through retirement centers throughout the greater
Portland area. As such, Cowlitz Bancorp believes it will be able to offer its
financial services products to Northern Bank's existing customers.

    The Cowlitz Bancorp board of directors believes that this unique ability to
reach this dynamic market in the greater Portland area will enhance Cowlitz
Bancorp's ability to increase its earnings and to expand within this larger
market. The merger with Northern Bank will provide an opportunity to begin to
expand into the Oregon market and reach many additional business customers as
well as provide the personalized service that has worked so successfully for it
in the past.

    In considering its long term strategy, the strong financial condition of the
company, the maturity of the Cowlitz County market, the availability and access
to a large and dynamic market in the greater Portland area, and the value of
having the only community based financial services company that reaches from
Seattle to Portland, the Cowlitz Bancorp board of directors feels that this
merger will add to the future value of the company.

    After consultations with attorneys, accountants, financial consultants and
its investment bankers (including their fairness opinion), the Cowlitz Bancorp
board of directors has concluded that it would be in the long-term best interest
of its shareholders and the future value of Cowlitz Bancorp to proceed with the
merger and unanimously recommends that shareholders vote "FOR" approval of the
share issuance.

    NORTHERN BANK.  In voting to approve the merger, Northern Bank's board of
directors considered the perspectives of Northern Bank's shareholder and
customers, as well as the requirements imposed by the cease and desist orders.
Specifically, Northern Bank's directors recognized that Cowlitz Bancorp would
bring to the surviving entity more capital, excellent management, geographic
diversity and an array of banking and financial services previously unavailable
to Northern Bank's customers. For shareholders, the combination will bring a
more widely traded stock and a fair price for their shares in Northern Bank. For
these reasons, the Northern Bank board of directors has voted unanimously to
recommend that shareholders approve the merger.

    Northern Bank's management believes its customers and prospective customers
will respond enthusiastically to the greater lending ability and the variety of
financial services the combined organization would afford them, including a
trust company, finance company and escrow company, not to mention the added
convenience for businesses who operate in both Oregon and Washington.

    The surviving institution also will be stronger in many ways. Northern
Bank's equity at June 30, 1999, stood at about $4.6 million, or 6.4% of June 30
assets. Cowlitz Bancorp's equity and assets on the same date were $31 million
and $169 million, respectively, resulting in a ratio of more than 18%. The pro
forma balance sheet for the combined entities would thus be much stronger and
should permit the surviving entity to better serve Northern Bank's growing
customer base and would be able to serve

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<PAGE>
bigger companies in the Portland market. A bank's loan-to-one-borrower limit is
determined by its capital, and Northern Bank's current limit is only about
$700,000. After the merger, Northern Bank management expects the loan limit for
the combined entity could exceed $3.7 million.

    Another area of added strength is in management. Northern Bank has built an
excellent marketing and service organization, and has penetrated Portland's
small business market by building an excellent reputation for service. It now
stands poised for solid and profitable growth, but will need to address a number
of challenges before doing so. Cowlitz Bank has experienced the same kind of
growth Northern Bank seeks, and in the process it has built a solid, experienced
and efficient management team. Already, one of Cowlitz Bank's most senior
officers, Jim Wills, has resigned his position to become Northern Bank's Acting
President and Chief Lending Officer.

    Equally important are the financial consequences to Northern Bank's
shareholders. Subject to the adjustments discussed in "The Merger--Merger
Consideration," each Northern Bank shareholder would receive up to $5.42 per
Northern Bank share, in the form of Cowlitz Bancorp stock, and would receive up
to $1.63 per Northern Bank share in cash upon termination of the escrow account,
resulting in total per share consideration of up to $7.05. By comparison,
Northern Bank's book value per share at June 30 was $3.77. As a result, the
merger consideration of $7.05 would translate to a price of up to 1.87 times
Northern Bank's June 30 book value. Although the merger consideration is subject
to reduction for decreases in Northern Bank's shareholders' equity and Northern
Bank has agreed to indemnify Cowlitz Bancorp for up to $2 million in additional
loan losses in the two years following closing of the merger, Northern Bank's
board of directors believes that the effect of any such reduction or
indemnification will not reduce the value of the merger consideration below an
acceptable level.

    CONCLUSION AND RECOMMENDATION.  Northern Bank's board of directors believes
the merger will bring additional resources to its business in the Portland
market that will benefit its existing customers, cementing old relationships and
providing a foundation for new relationships. For Northern Bank's shareholders
the advantages will be both immediate and long term. Assuming the current
financial terms of the transaction, the board of directors believes that
Northern Bank shareholders will become shareholders in a more well-capitalized
institution and will receive consideration in excess of the current market value
of Northern Bank stock. In the long term the growth Cowlitz Bancorp can generate
in the Portland market should add significantly to the value of the common stock
of the combined entity.

    The Northern Bank board of directors therefore unanimously recommends that
each shareholder vote in favor of the merger.

OPINIONS OF FINANCIAL ADVISORS

OPINION OF COWLITZ BANCORP'S FINANCIAL ADVISOR

    Cowlitz Bancorp retained Sage Capital LLC to act as financial advisor to
Cowlitz Bancorp in connection with the evaluation of certain elements of Cowlitz
Bancorp's acquisition strategy. Pursuant to this engagement, Sage was asked to
render an opinion to the Cowlitz Bancorp board of directors as to whether the
equity consideration to be paid for Northern Bank pursuant to the merger
agreement was fair to the shareholders of Cowlitz Bancorp from a financial point
of view. Sage was not requested to, and did not, make any recommendation to the
Cowlitz Bancorp board of directors as to the number of shares or the amount of
cash consideration from Cowlitz Bancorp to be issued to and received by Northern
Bank shareholders pursuant to the merger agreement, which number was determined
through arm's-length negotiations between Cowlitz Bancorp and Northern Bank.
Sage also did not advise as to the structure of the escrow arrangement.

    As of September 14, 1999, Sage delivered its written opinion to the Cowlitz
Bancorp board of directors that, as of such date and based upon and subject to
certain assumptions and other matters

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<PAGE>
described in its written opinion, the total consideration to be paid by Cowlitz
Bancorp pursuant to the merger agreement is fair to the shareholders of Cowlitz
Bancorp from a financial point of view. Sage's opinion is addressed to the board
of directors of Cowlitz Bancorp, is directed only to the financial terms of the
merger agreement and does not address the underlying business decision of
Cowlitz Bancorp and Northern Bank to engage in the Merger and does not
constitute a recommendation to any shareholder of Cowlitz Bancorp as to how such
shareholder should vote at the Cowlitz Bancorp special meeting.

    The complete text of the September 14, 1999 opinion (the "Sage Opinion"),
which sets forth the assumptions made, matters considered, and limitations on
and scope of the review undertaken by Sage, is attached to this joint proxy
statement Appendix E, and the summary of the Sage Opinion set forth in this
joint proxy statement is qualified in its entirety by reference to the Sage
Opinion. Cowlitz Bancorp shareholders are urged to read the Sage Opinion
carefully and in its entirety for a description of the procedures followed, the
factors considered, and the assumptions made by Sage.

    In arriving at its Opinion, Sage, among other things, (i) reviewed the
merger agreement; (ii) reviewed certain other documents relating to the merger
agreement; (iii) reviewed certain publicly available information concerning
Cowlitz Bancorp and Northern Bank; (iv) held discussions with members of senior
management of Cowlitz Bancorp concerning the business prospects of Cowlitz
Bancorp, including such managements' views as to the organization of and
strategies with respect to the merger; (v) reviewed certain operating and
financial information prepared by the managements of Cowlitz Bancorp and
Northern Bank; (vi) reviewed the recent reported prices and trading activity for
the common stock of certain other companies engaged in businesses Sage
considered comparable to those of Cowlitz Bancorp and compared certain publicly
available financial data for those comparable companies to similar data for
Cowlitz Bancorp; (vii) reviewed the financial terms of certain other merger and
acquisition transactions that Sage deemed generally relevant; and
(viii) performed and considered such other studies, analyses, inquiries and
investigations as Sage deemed appropriate. Sage was not, to the best of its
knowledge, denied access by Cowlitz Bancorp or Northern Bank to any requested
information and no restrictions were placed on Sage with respect to the
procedures followed by Sage in rendering its opinion.

    Sage assumed and relied upon, without independent verification, the accuracy
and completeness of the information it reviewed for the purposes of its opinion.
With respect to the financial information of Cowlitz Bancorp and Northern Bank,
Sage assumed that such information was complete and accurate in all material
respects and had been reasonably prepared on bases reflecting the best currently
available estimates and judgments of management of such companies, at the time
of preparation, of the operating and financial performance of Cowlitz Bancorp
and Northern Bank. Sage also assumed that there were no material changes in
Cowlitz Bancorp's or Northern Bank's assets, financial condition, results of
operations, business or prospects since the date of their last financial
statements made available to Sage and that all material liabilities (contingent
or other, known or unknown) of Cowlitz Bancorp and Northern Bank are as set
forth in the financial statements. Sage did not prepare or obtain any
independent evaluation or appraisal of the assets or liabilities of Cowlitz
Bancorp or Northern Bank, nor did Sage conduct a physical inspection of the
properties and facilities of Cowlitz Bancorp or Northern Bank in connection with
its opinion. The Sage Opinion states that it was based on economic, financial
and other conditions existing as of the date of such opinion. Sage does not have
any obligation to update, revise or reaffirm its opinion. Furthermore, Sage
expressed no opinion as to what the value of Cowlitz Bancorp common stock will
be when issued pursuant to the merger agreement or the prices at which Cowlitz
Bancorp common stock will trade at any time.

    Based upon this information, Sage performed a variety of financial analyses
of the merger. The following paragraphs briefly summarize the principal
financial analyses performed by Sage in arriving at its opinion delivered to the
Cowlitz Bancorp board of directors. Such analyses are based on a number of
assumptions, including among other things, the projected performance of Cowlitz
Bancorp and Northern Bank and the comparable public companies.

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<PAGE>
    CONTRIBUTION ANALYSIS.  Sage reviewed the pro forma contribution of Cowlitz
Bancorp and Northern Bank to estimated combined financial results for the twelve
(12) months ending December 31, 1999, December 31, 2000 and December 31, 2001.
Sage reviewed, among other things, pro forma contributions to total revenues,
earnings before taxes ("EBT") and net income. Based on this analysis, for the
twelve (12) months ending December 31, 2000, Cowlitz Bancorp will contribute
84.1% of pro forma combined total revenues, 93.5% of pro forma combined EBT, and
91.5% of pro forma combined net income. For the twelve (12) months ended
December 31, 2001, Cowlitz Bancorp will contribute 82.4% of pro forma combined
total revenues, 83.9% of combined EBT, and 78.8% of pro forma combined net
income.

    COMPARABLE COMPANY ANALYSIS.  Sage compared selected historical and
projected operating and stock market data and operating and financial ratios for
Cowlitz Bancorp to the corresponding data and ratios of certain publicly traded
banks which it deemed generally comparable to Cowlitz Bancorp. Such data and
ratios included market value to historical and projected revenue, market value
to historical and projected EBT, market value to historical and projected net
income and market value to historical book value. Companies deemed to be
generally comparable to Cowlitz Bancorp included Cascade Bancorp, Columbia
Bancorp, Centennial Bancorp, Columbia Banking Systems, Pacific Continental Bank,
Six Rivers National Bank, United Security Bancorp, Umpqua Holdings, VRB Bancorp
and West Coast Bancorp.

    For the comparable companies, the multiples of market value to last twelve
months ("LTM") book values ranged from 0.68 to 3.10 with a mean of 1.97;
dividend yields ranged from 0.0% to 3.6% with a mean of 1.3%,; market value to
LFY net income ranged from 9.2 to 27.8 with a mean of 12.3; and market value to
FY 1999 consensus earnings estimates ranged from 10.1 to 24.6 with a mean of
13.7, excluding Northern Bank. These ratios compared with the following ratios
for Cowlitz Bancorp, calculated on the $5.31 per share closing price of Cowlitz
Bancorp common stock on October 29, 1999: market value to book value of 0.68,
dividend yield of 1.4%, market value to LFY net income of 9.2, and market value
to FY 1999 earnings estimates of 20.3.

    COMPARABLE TRANSACTION ANALYSIS.  Sage also analyzed publicly available
financial information for twenty-nine (29) selected mergers and acquisitions
with aggregate transaction values up to $9.09 billion (the "Comparable Size
Transactions") of companies in the banking industry from January 1997 through
June 1999. For transactions in the banking industry, the mean values of market
capitalization to book value was 2.83. For the transactions evaluated in the
banking industry, mean values of market capitalization to LTM earnings was 20.0
times.

    No company or transaction used in any comparable transaction analysis as a
comparison is identical to Cowlitz Bancorp or Northern Bank. Accordingly, these
analyses are not simply mathematical; rather, they involve complex
considerations and judgments concerning differences in the financial and
operating characteristics of the comparable companies and other factors that
could affect the public trading value of the comparable companies and the
transactions to which they are being compared.

    The preparation of a fairness opinion involves various determinations as to
the most appropriate and relevant quantitative and qualitative methods of
financial analysis and the application of those methods to the particular
circumstances and, therefore, such an opinion is not readily susceptible to
summary description. Accordingly, Sage believes that its analyses must be
considered as a whole and that considering any portions of such analyses and of
the factors considered, without considering all analyses and factors, could
create a misleading or incomplete view of the evaluation process underlying its
opinion. In performing its analyses, Sage made numerous assumptions with respect
to industry performance, general business and economic conditions and other
matters, many of which are beyond the control of Cowlitz Bancorp or Northern
Bank. Any estimates contained in these analyses do not necessarily indicate
actual values or predictive of future results or values, which may be
significantly more or less favorable than as set forth therein. Additionally,
analyses relating to the values of

                                       30
<PAGE>
businesses or assets do not purport to be appraisals or necessarily reflect the
prices at which businesses or assets may actually be sold.

    Sage is a regional investment banking firm based in Portland, Oregon. As
part of their investment banking services, the principals of Sage are regularly
engaged in the business of advising the managements and boards of directors of
corporations regarding the issuance of securities, providing advisory services
for mergers and acquisitions, issuing fairness opinions and providing market
valuations. Cowlitz Bancorp has agreed to pay Sage for its services in
connection with the transaction, including the delivery of its fairness opinion,
a fee of $50,000, contingent upon closing of the transaction. Cowlitz Bancorp
has also agreed to reimburse Sage for reasonable out-of-pocket expenses and to
indemnify Sage against certain liabilities relating to or arising out of
services performed by Sage as financial advisor to Cowlitz Bancorp.

OPINION OF NORTHERN BANK'S FINANCIAL ADVISOR

    Northern Bank retained D.A. Davidson & Co. to act as its financial advisor
in connection with the merger. D.A. Davidson & Co. rendered a written opinion to
Northern Bank as of September 10, 1999 to the effect that, based upon and
subject to the factors and assumptions set forth in such opinion, and as of that
date, the merger consideration to be paid by Cowlitz Bancorp was fair from a
financial point of view to the shareholders of Northern Bank.

    THE FULL TEXT OF THE D.A. DAVIDSON & CO. OPINION SETS FORTH ASSUMPTIONS
MADE, MATTERS CONSIDERED AND QUALIFICATIONS AND LIMITATIONS ON THE REVIEW
UNDERTAKEN, AMONG OTHER THINGS. THE FULL TEXT OF THE D.A. DAVIDSON & CO. OPINION
IS ATTACHED HERETO AS APPENDIX D AND IS INCORPORATED HEREIN BY REFERENCE.
NORTHERN BANK SHAREHOLDERS ARE URGED TO READ THE D.A. DAVIDSON & CO. OPINION IN
ITS ENTIRETY. DIRECTED TO THE NORTHERN BANK BOARD OF DIRECTORS, THE D.A.
DAVIDSON & CO. OPINION ADDRESSES ONLY THE FAIRNESS TO THE HOLDERS OF NORTHERN
BANK COMMON STOCK, FROM A FINANCIAL POINT OF VIEW, OF THE CONSIDERATION TO BE
PAID BY COWLITZ BANCORP FOR THE NORTHERN BANK COMMON STOCK PURSUANT TO THE
MERGER AGREEMENT. THE D.A. DAVIDSON & CO. OPINION WAS RENDERED TO THE NORTHERN
BANK BOARD OF DIRECTORS FOR ITS CONSIDERATION IN DETERMINING WHETHER TO APPROVE
THE MERGER AGREEMENT. THE D.A. DAVIDSON & CO. OPINION DOES NOT CONSTITUTE A
RECOMMENDATION TO ANY NORTHERN BANK SHAREHOLDER AS TO HOW SUCH SHAREHOLDER
SHOULD VOTE. THE FOLLOWING SUMMARY OF THE D.A. DAVIDSON & CO. OPINION IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO THE FULL TEXT OF THE D.A. DAVIDSON &
CO. OPINION. No limitations were imposed by Northern Bank on the scope of D.A.
Davidson & Co.'s investigation or the procedures to be followed by D.A.
Davidson & Co. in rendering its opinion. The form and amount of consideration to
be paid by Cowlitz Bancorp to Northern Bank shareholders in the merger was
determined through arm's-length negotiations between the parties. D.A.
Davidson & Co. was not requested to opine as to, and its opinion does not
address, Northern Bank's underlying business decision to proceed with or effect
the merger.

    During the course of the engagement, D.A. Davidson & Co. reviewed and
analyzed material bearing on the financial and operating conditions of Cowlitz
Bancorp and Northern Bank and material prepared in connection with the proposed
transaction, including the following: (1) the merger agreement; (2) certain
publicly available information concerning Cowlitz Bancorp and Northern Bank,
including financial statements for each of the three years ended December 31,
1998 and for the six months ended June 30, 1999; (3) various regulatory
reporting statements of Northern Bank; (4) certain internal reports and
financial projections for Northern Bank; (5) the nature and terms of recent sale
and merger transactions involving banks and bank holding companies that D.A.
Davidson & Co. considered relevant; (6) financial and common stock performance
information of certain publicly-traded banking organizations that D.A.
Davidson & Co. considered relevant; and (7) financial and other information
provided by the management of Northern Bank and Cowlitz Bancorp. In arriving at
its opinion, D.A. Davidson & Co. assumed and relied upon the accuracy and
completeness of the financial and other information used by it without assuming
any responsibility for independent verification of such information, and further
relied upon the assurances of the managements of Cowlitz Bancorp and

                                       31
<PAGE>
Northern Bank that they were not aware of any facts or circumstances that would
make such information inaccurate or misleading. With respect to any financial
projections reviewed by D.A. Davidson & Co., D.A. Davidson & Co. assumed that
such projections were reasonably prepared on a basis reflecting the best
currently available estimates and judgments of the managements of either Cowlitz
Bancorp or Northern Bank.

    D.A. Davidson & Co. understands that the merger will be accounted for using
the purchase method of accounting. D.A. Davidson & Co. has further assumed for
purposes of its analysis that the merger will generally be treated as a tax-free
exchange of shares to Northern Bank shareholders, although shareholders should
review carefully the section entitled "Certain Federal Tax Consequences" for a
more detailed discussion of the potential tax treatment. In arriving at its
opinion, D.A. Davidson & Co. did not conduct a physical inspection of the
properties and facilities of Cowlitz Bancorp or Northern Bank and did not make
or obtain any evaluations or appraisals of the assets or liabilities of Cowlitz
Bancorp or Northern Bank. D.A. Davidson & Co. is not an expert in the evaluation
of allowance for loan losses and it has not made an independent evaluation of
the allowance for loan losses of Northern Bank or Cowlitz Bank nor has it
reviewed any individual credit files. D.A. Davidson & Co.'s opinion necessarily
was based upon market, economic and other conditions as they existed on, and
could be evaluated as of, the date of D.A. Davidson & Co.'s opinion.

    The following is a summary of the analyses D.A. Davidson & Co. performed in
arriving at its September 10, 1999 opinion as to the fairness of the merger
consideration from a financial point of view to Northern Bank's shareholders. In
connection with the preparation and delivery of its opinion to the board of
directors of Northern Bank, D.A. Davidson & Co. performed a variety of financial
and comparative analyses, as described below. The preparation of a fairness
opinion involves various determinations as to the most appropriate and relevant
methods of financial and comparative analysis and the application of those
methods to the particular circumstances. Therefore, such an opinion is not
readily susceptible to summary description. Furthermore, in arriving at its
opinion, D.A. Davidson & Co. did not attribute any particular weight to any
analysis or factor considered by it, but rather made qualitative judgments as to
the significance and relevance of each analysis and factor. Accordingly, D.A.
Davidson & Co. believes that its analyses must be considered as a whole and that
considering any portion of such analyses and factors, without considering all
analyses and factors, could create a misleading or incomplete view of the
process underlying its opinion. In its analyses, D.A. Davidson & Co. made
numerous assumptions with respect to industry performance, general business and
economic conditions and other matters, many of which are beyond the control of
Northern Bank. Any estimates contained in these analyses were not necessarily
indicative of actual values or predictive of future results or values, which may
be significantly more or less favorable than as set forth herein. In addition,
analyses relating to the value of businesses did not purport to be appraisals or
to reflect the prices at which businesses may actually be sold.

    PURCHASE PRICE ANALYSIS.  Based on the $5.25 closing price of Cowlitz
Bancorp common stock on September 14, 1999, the aggregate transaction value
ranged from $5.31 million to $7.31 million and the per share transaction value
ranged from $4.34 to $5.97. These ranges result from the approximately
$2.00 million in cash which will be placed in escrow and will become payable to
Northern Bank shareholders two years after closing, subject to reduction or
elimination if loan losses on certain Northern Bank loans exceed the reserves
established for those loans. If the entire $2.00 million to be placed in escrow
is paid out to Northern Bank shareholders, the price-to-book ratio paid in the
merger is 158.3%, based on Northern Bank's book value at June 30, 1999 of
$4.62 million. If none of the $2.00 million to be placed in escrow is paid out
to Northern Bank shareholders because actual loan losses on certain Northern
Bank loans exceed the reserves established for those loans by the entire
$2.00 million, the price-to-book ratio paid in the merger is 203.0% based on
Northern Bank's adjusted book value at June 30, 1999 of $2.62 million (adjusted
for additional loan losses, that is $4.62 million actual book value less
$2.00 million in additional loan loss reserves or a net $2.62 million). The
deposit premium paid in the merger (defined as the transaction value, minus the
book value, divided by the

                                       32
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total deposits) using June 30, 1999 financial data is 4.03%. The
price-to-earnings multiple and price-to-estimated earnings multiple paid in the
merger cannot be computed because Northern Bank incurred a net loss for the
12-month period ended June 30, 1999 and is expected to incur a net loss for the
12-month period ended December 31, 1999.

    PRO FORMA MERGER ANALYSIS.  D.A. Davidson & Co. analyzed certain pro forma
effects resulting from the merger. D.A. Davidson & Co. noted that under the
terms of the merger, current Northern Bank shareholders would own approximately
19.6% of the combined entity and that current Cowlitz Bancorp shareholders would
own approximately 80.4% of the combined entity after giving effect for the
merger. D.A. Davidson & Co. noted that these relative ownership positions
compared to the relative contributions of Northern Bank and Cowlitz Bancorp to
the combined entity's pro forma financial condition at June 30, 1999 as follows:
29.8% and 70.2%, respectively, of assets, and 37.0% and 63.0%, respectively, of
deposits, 12.9% and 87.1% of book value. The relative contributions of Northern
Bank and Cowlitz Bancorp to the combined entity's pro forma financial results
for the 12 months ended June 30, 1999 could not be computed because Northern
Bank incurred a net loss for the period. In comparing these relative
contributions of Northern Bank and Cowlitz Bancorp to the relative ownership
positions of the combined entity, D.A. Davidson & Co. also noted and considered
the additional cash of up to approximately $2 million which may become payable
to Northern Bank shareholders two years after closing. D.A. Davidson & Co. noted
the merger would result in pro forma book value per share accretion at June 30,
1999 ranging from 43.3% to 51.8%, depending on the amount of cash which becomes
payable to Northern Bank shareholders. D.A. Davidson & Co. also noted that
earnings per share for the 12 months ended June 30, 1999 would increase from a
loss of $0.15 per share to pro forma earnings per share ranging from $0.19 to
$0.21 per share, depending on the amount of cash which becomes payable to
Northern Bank shareholders.

    COMPARISON OF SELECTED PUBLIC COMPANIES.  D.A. Davidson & Co. reviewed and
compared certain financial, operating and market information of Northern Bank
with the following publicly-traded banking organizations that it believed to be
appropriate for comparison: First State Bancorp, Security Bank Holding Co.,
Umpqua Holdings Corp., Columbia Bancorp-OR, United Security Bancorp, Northrim
Bank, Union Bankshares Ltd., Cascade Bancorp, Centennial Bancorp, Colorado
Business Bankshares, VRB Bancorp, Washington Banking Co., Glacier Bancorp,
American Pacific Bank, and Vail Banks Inc. Such information included market
valuation, profitability and capital ratios. Market information reviewed and
compared included market price to: latest 12 months earnings, estimated 1999
earnings, book value, total assets and total deposits. D.A. Davidson & Co. noted
the price-to-book ratios of the selected public companies averaged 179.9% and
ranged from a low of 89.1% to a high of 345.3%. D.A. Davidson & Co. also noted
the price-to-earnings multiples based on the latest 12 months earnings and on
estimated 1999 earnings averaged 15.9x and 14.9x respectively, and ranged from a
low of 8.5x to a high of 32.1x (based on latest 12 months earnings) and a low of
9.9x to a high of 34.0x (based on estimated 1999 earnings). Because of the
inherent differences in the businesses, operations, financial conditions and
prospects of Northern Bank, Cowlitz Bancorp and the selected public companies,
D.A. Davidson & Co. believed that a purely quantitative analysis would not be
particularly meaningful in the context of the merger. D.A. Davidson & Co.
believed that the appropriate use of a comparable company analysis in this
instance would involve qualitative judgments concerning the differences between
Northern Bank and the selected public companies which would affect the trading
values of the selected public companies and Northern Bank.

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    ANALYSIS OF ACQUISITION TRANSACTIONS.  Using publicly available information,
D.A. Davidson & Co. reviewed certain terms and financial characteristics of the
following recently completed merger or acquisition transactions of banking
organizations that it believed to be appropriate for comparison: First
Washington Bancorp's acquisitions of Whatcom State Bancorp and Seaport Citizens
Bank, Glacier Bancorp's acquisition of Big Sky Western Bank, United Security
Bancorp's acquisition of BancWest Financial Corp., Heritage Financial Corp.'s
acquisition of Washington Independent Bankshares, Norwest Corp.'s acquisition of
Riverton State Bank Holding Corp., First Security Corp.'s acquisitions of
Comstock Bancorp and XEON Financial Corp., and Horizon Financial Corp's
acquisition of Bellingham Bancorp. The information reviewed included the size of
the acquired company, the transaction values and the resulting price-to-book
ratios and price-to-earnings multiples. D.A. Davidson & Co. noted the aggregate
transaction values of the selected transactions averaged $21.7 million and
ranged from a low of $5.7 million to a high of $64.1 million. D.A. Davidson &
Co. also noted the price-to-book ratios of the selected transactions averaged
236.2% and ranged from a low of 189.7% to a high of 293.2%, and the
price-to-earnings multiples based on trailing 12 months earnings averaged 17.7x
and ranged from a low of 12.8x to a high of 25.3x. Because the reasons for and
circumstances surrounding each of the selected transactions were so diverse and
because of the inherent differences in the businesses, operations and financial
conditions and prospects of Northern Bank, Cowlitz Bancorp and the companies
included in the analysis of acquisition transactions. D.A. Davidson & Co.
believed that a purely qualitative analysis would not be particularly meaningful
in the context of the evaluation of the fairness of the merger consideration.
D.A. Davidson & Co. believed that the appropriate use of an analysis of
acquisition transactions in this instance would involve qualitative judgements
concerning the differences between the characteristics of these transactions
which would affect the acquisition values of the acquired companies and the
merger.

    DISCOUNTED TERMINAL VALUE ANALYSIS.  D.A. Davidson & Co. estimated the
present value per share of the Northern Bank common stock by assuming a range of
discount rates from 10% to 20% and a range of growth rates in net earnings from
10% to 20% through 2004, starting with estimated net earnings of $0.60 million
in 2000. In addition, D.A. Davidson & Co. used a range of price-to-earnings
multiples from 12.0 to 16.0 in calculating the net present value per share. This
analysis and its underlying assumptions yielded a range of value for Northern
Bank's shares of approximately $3.46 per share to $10.09 per share. This
compares to a per share transaction value ranging from $4.34 to $5.97. In
arriving at the value of Northern Bank's book value at December 31, 2004, D.A.
Davidson & Co. assumed 100% earnings retention from June 30, 1999 through
December 31, 2004 and assumed that no additional capital was raised during this
period. These rates and values were chosen to reflect different assumptions
regarding the required rates of return of holders or prospective buyers of
Northern Bank common stock.

    OTHER CONSIDERATIONS.  On July 19, 1999, the Federal Deposit Insurance
Corporation and the State of Oregon, the regulators primarily responsible for
providing oversight of Northern Bank, presented to Northern Bank, and Northern
Bank signed, proposed cease and desist orders. Among other things, the orders
stipulated that Northern Bank's management, equity capital and reserves are
inadequate for the volume and quality of its assets, and that Northern Bank's
collection practices are lax. The orders directed Northern Bank to hire
additional senior management with proven ability to manage a bank of Northern
Bank's size and with experience upgrading a loan portfolio and improving
earnings. The orders also directed Northern Bank to reduce all loans classified
as substandard or doubtful to specified levels and to increase Northern Bank's
tier 1 capital by at least $2.0 million within a specified time. D.A.
Davidson & Co. considered the impact of the orders on Northern Bank in arriving
at its opinion.

    D.A. Davidson & Co. is a nationally recognized investment banking firm. As
part of its investment banking business, D.A. Davidson & Co. is continuously
engaged in the valuation of businesses and securities in connection with mergers
and acquisitions, competitive biddings, private placements and

                                       34
<PAGE>
valuations for corporate and other purposes. The Northern Bank board of
directors retained D.A. Davidson & Co. based upon D.A. Davidson & Co.'s
experience and expertise and its familiarity with Northern Bank, Cowlitz Bank
and Cowlitz Bancorp. D.A. Davidson & Co. is acting as financial advisor to
Northern Bank in connection with the merger. Pursuant to a letter agreement with
D.A. Davidson & Co. executed by Northern Bank on April 26, 1999, Northern Bank
has agreed to pay D.A. Davidson & Co. a fee equal to 2.25% of the aggregate
consideration payable in connection with the merger, $5,000 of which has been
paid to D.A. Davidson & Co.. The letter agreement with D.A. Davidson & Co. also
provides that Northern Bank will reimburse D.A. Davidson & Co. for its
reasonable out-of-pocket expenses incurred in connection with the merger and
indemnify D.A. Davidson & Co. and certain related persons and entities against
certain liabilities, including liabilities under securities laws, incurred in
connection with its services thereunder. In the ordinary course of business,
D.A. Davidson & Co. may trade the common stock of Northern Bank and Cowlitz
Bancorp for its own account and the accounts of its customers and, accordingly,
may at any time hold a long or short position in such securities.

EFFECTIVE DATE

    The merger will become effective on the date and time set forth in the
articles of merger filed with the Washington Secretary of State, the Washington
Director of Financial Institutions and the Oregon Department of Consumer and
Business Affairs. The parties will file the articles of merger on the first
business day following the later of (a) the date which is at least five business
days after the last of the conditions to closing the merger has been satisfied
or waived or (b) 35 days after the special meeting of Northern Bank shareholders
if holders of more than 5% of the outstanding Northern Bank shares have
delivered a notice of dissent or voted against the merger (but have not
perfected their appraisal rights), or any other date as Cowlitz Bancorp and
Northern Bank may agree. The merger agreement may be terminated by either party
if, among other reasons, the merger is not completed on or before March 31,
2000. See "--Conditions to Completion of the Merger" and "--Termination of the
Merger Agreement" below.

EXCHANGE OF CERTIFICATES

    By the effective date, Cowlitz Bancorp will deposit with an exchange agent,
for exchange under the terms of the merger agreement (a) the Cowlitz Bancorp
stock certificates for stock payable to Northern Bank shareholders, and an
estimated amount of cash to be paid in lieu of fractional shares, and (b) the
cash portion of the merger consideration.

    As soon as practicable after the effective date, the exchange agent will
mail a transmittal letter to the Northern Bank shareholders. The transmittal
letter will contain instructions for the surrender of their certificates in
exchange for the merger consideration and will specify that delivery will be
effective and risk of loss will pass only upon delivery of the certificates to
the exchange agent.

    After the effective date, after submitting a completed and executed
transmittal letter and surrendering all certificates representing Northern Bank
stock, a Northern Bank shareholder will receive a certificate representing the
number of shares of Cowlitz Bancorp common stock to which the former Northern
Bank shareholder is entitled, and a check for the fractional Cowlitz Bancorp
shares the holder would otherwise be entitled to receive. No interest will be
paid on the cash payable in lieu of fractional share.

    Northern Bank shareholders will not be paid any dividends or other
distributions declared on Cowlitz Bancorp common stock with a record date after
the effective date until the shareholders surrender their Northern Bank stock
certificates for exchange. After surrendering their Northern Bank stock
certificates, former Northern Bank shareholders will be paid any dividends and
other distributions

                                       35
<PAGE>
declared on Cowlitz Bancorp stock after the effective date, but no interest will
be paid on those distributions.

    Any portion of the certificates delivered to the exchange agent and any cash
delivered as payment for fractional shares that remain unclaimed twelve months
after the effective date will be paid to Cowlitz Bancorp. Thereafter, former
Northern Bank shareholders who have not yet complied with the exchange procedure
can look only to Cowlitz Bancorp for delivery of certificates and payment of any
cash due for fractional shares. None of Cowlitz Bancorp, Cowlitz Bank, Northern
Bank, the exchange agent, or any other person will be liable to any former
Northern Bank shareholder for any amount properly delivered to a public official
under applicable abandoned property, escheat or similar laws.

    If a Northern Bank stock certificate has been lost, stolen or destroyed, the
exchange agent will issue the Cowlitz Bancorp shares and, where applicable, the
cash consideration upon receipt of an affidavit from the shareholder as to the
loss, theft or destruction and the posting of a bond in an amount that Cowlitz
Bancorp may determine is reasonably necessary.

    For a description of the differences between the rights of the Cowlitz
Bancorp shareholders and Northern Bank shareholders, see "Comparison of Rights
of Cowlitz Bancorp shareholders and Northern Bank Shareholders."

FRACTIONAL SHARES

    No fractional shares of Cowlitz Bancorp common stock will be issued to any
holder of Northern Bank common stock upon completion of the merger. In lieu of
each fractional share, Cowlitz Bancorp will pay cash in an amount equal to the
fraction multiplied by $6.563. No interest will accrue or be paid on the cash to
be paid for fractional shares. No holder of fractional shares will be entitled
to dividends, voting rights or any other shareholder rights. To determine any
fractional share interests all shares of Northern Bank common stock owned by any
Northern Bank shareholder will be combined so as to calculate the maximum number
of shares of Cowlitz Bancorp common stock issuable to that Northern Bank
shareholder.

REPRESENTATIONS AND WARRANTIES

    In the merger agreement, Cowlitz Bancorp and Northern Bank each make
representations and warranties to the other regarding, among other things:

    - its corporate organization and existence;

    - its capitalization;

    - its corporate power and authority to carry on its business and to enter
      into the merger agreement;

    - its due authorization, execution and delivery of the merger agreement and
      related agreements;

    - required governmental and third party approvals;

    - that neither the merger agreement nor the transactions contemplated in the
      merger agreement violate its charter, bylaws, applicable law or certain
      material agreements;

    - the timely filing and payment of required fees in connection with material
      regulatory reports;

    - its financial statements and securities filings;

    - the absence of certain material legal proceedings or regulatory actions;

    - the absence of certain materially adverse changes in its business;

    - its compliance with applicable law;

                                       36
<PAGE>
    - its agreements or understandings with, or the existence of any order
      issued by, regulatory agencies;

    - any broker's fees payable in connection with the merger;

    - year 2000 compliance of their hardware and software;

    - the opinions of their respective financial advisors; and

    - the completeness and accuracy and compliance as to form of this joint
      proxy statement, the related registration statement and any other
      governmental filing in connection with the merger.

    In addition, Northern Bank has made certain other representations and
warranties to Cowlitz Bank and Cowlitz Bancorp regarding, among other things:

    - the filing and accuracy of all tax returns and payment or provision for
      all taxes;

    - its employee benefit plans and related matters;

    - its filings with the FDIC;

    - its material contracts;

    - the absence of any undisclosed liabilities;

    - its real and personal property;

    - its insurance coverage;

    - certain environmental matters;

    - its intellectual property;

    - the loans reflected as assets on its books and records;

    - labor matters;

    - compliance with the Community Reinvestment Act of 1977;

    - the absence of powers of attorney;

    - that no Northern Bank common stock is available through a benefit plan;
      and

    - that its board of directors has taken all action necessary so that neither
      the merger agreement, the merger, the option agreement nor the exercise of
      the option (as described in "--The Option Agreement" below) will cause
      application of the anti-takeover provisions of Oregon law.

CONDITIONS TO THE COMPLETION OF THE MERGER

    Cowlitz Bancorp's, Cowlitz Bank's and Northern Bank's obligations to effect
the merger are subject to, among other things, satisfaction of the following
conditions by the effective date:

    - the merger must have been approved by the Northern Bank shareholders and
      the issuance of the Cowlitz Bancorp stock in the merger must have been
      approved by the Cowlitz Bancorp shareholders;

    - all required regulatory approvals must have been obtained and must remain
      in full force and effect, and all statutory waiting periods must have
      expired;

    - no court or agency order, injunction or decree or other legal prohibition
      may be in effect to prevent completion of the merger or any of the
      transactions contemplated by the merger agreement;

                                       37
<PAGE>
    - no statute, rule, regulation, order, injunction or decree shall have been
      enacted, entered or promulgated that would prohibit, restrict or make
      illegal the completion of the merger;

    - no stop order will have been issued or threatened by the SEC that would
      suspend the effectiveness of the registration statement of which this
      joint proxy statement is a part; and

    - the Cowlitz Bancorp shares to be issued in the merger must have been
      authorized for listing on the Nasdaq Stock Market, subject to official
      notice of issuance.

    Cowlitz Bancorp's obligation to effect the merger is also subject to, among
other things, the satisfaction or waiver by Cowlitz Bancorp, at or prior to the
effective date, of the following conditions:

    - Northern Bank's representations and warranties set forth in the merger
      agreement must be true and correct in all respects as of the date of the
      merger agreement and as of the closing date of the merger (subject to
      certain exceptions);

    - Northern Bank must have performed in all material respects all obligations
      required to be performed by it under the merger agreement;

    - none of the required regulatory approvals may contain any restriction,
      term or condition that would reasonably be expected to have a material
      adverse effect on Cowlitz Bancorp or Cowlitz Bank, or to prevent Cowlitz
      Bancorp from realizing substantially all of the contemplated benefits of
      the merger;

    - Cowlitz Bancorp must have received resignations from each of the Northern
      Bank directors other than Mr. Spicer;

    - Mr. Holloway's employment agreement with Cowlitz Bank (as described in
      "--Employee Matters" below) must be in full force and effect and
      Mr. Holloway must not have defaulted under that agreement;

    - each of the non-competition agreements and option agreements entered into
      between Cowlitz Bancorp and certain Northern Bank directors must be in
      full force and effect, and no director may have defaulted under these
      agreements;

    - no more than 5% of the total outstanding Northern Bank shares may have
      perfected dissenters' rights with respect to these shares (unless those
      rights are withdrawn before the effective date);

    - there must be no pending or threatened legal, administrative, arbitral or
      other proceeding or investigation against Northern Bank, Cowlitz Bancorp
      or any subsidiary of Cowlitz Bancorp or challenging the validity of the
      merger agreement which (a) has a significant possibility of an adverse
      outcome and (b) could have a material adverse effect on Northern Bank,
      Cowlitz Bancorp or Cowlitz Bank;

    - Cowlitz Bancorp or Cowlitz Bank must have received assurances from the
      FDIC and the Director of the Department of Consumer and Business Services
      of the State of Oregon that the cease and desist orders issued to Northern
      Bank will not apply to Cowlitz Bank as the surviving bank in the merger;

    - Northern Bank's total deposits on the effective date must be equal to at
      least 80% of its total deposits as of June 30, 1999 and must have
      substantially the same interest rates and be in substantially the same mix
      as its deposits on that date;

    - Northern Bank's total shareholders' equity on the effective date must be
      at least $1,150,000;

    - Cowlitz Bancorp must have received an opinion from Arthur Andersen LLP as
      to the treatment of certain accounting matters; and

                                       38
<PAGE>
    - Cowlitz Bancorp must have received written agreements from each Northern
      bank officer and director immediately prior to the effective date agreeing
      to the terms on which Cowlitz Bancorp will provide directors' and
      officers' insurance after the merger, and to the limitations on Cowlitz
      Bancorp's obligation to indemnify those individuals.

    Northern Bank's obligation to effect the merger is also subject to, among
other things, the satisfaction or waiver by Northern Bank, at or prior to the
effective date, of the following conditions:

    - Cowlitz Bancorp's representations and warranties set forth in the merger
      agreement must be true and correct in all respects as of the date of the
      merger agreement and as of the closing date of the merger (subject to
      certain exceptions);

    - Cowlitz Bancorp must have performed in all material respects all
      obligations required to be performed by it under the merger agreement; and

    - there must be no pending or threatened legal, administrative, arbitral or
      other proceeding or investigation against Cowlitz Bancorp or any Cowlitz
      Bancorp subsidiary or challenging the validity of the merger agreement
      which (a) has a significant possibility of an adverse outcome and
      (b) could have a material adverse effect on Cowlitz Bancorp or Cowlitz
      Bank.

REGULATORY APPROVALS REQUIRED

    Under the merger agreement, the obligations of both Cowlitz Bancorp and
Northern Bank to complete the merger are conditioned upon the receipt of all
required regulatory approvals. Cowlitz Bancorp and Northern Bank have agreed to
use their reasonable best efforts to obtain these regulatory approvals. Cowlitz
Bancorp and Northern Bank must obtain the approval of the FDIC and they have
identified Washington and Oregon as states in which filings or regulatory
approvals are required. To date, neither Cowlitz Bancorp nor Northern Bank has
received any approvals or notices of disapproval. It is possible that these
approvals may not be granted, may be granted at a later date than expected, or
may be granted subject to unfavorable conditions.

AMENDMENT AND WAIVER OF THE MERGER AGREEMENT

    Cowlitz Bancorp and Northern Bank may amend the merger agreement at any time
before or after the Northern Bank shareholders approve the merger unless the
amendment reduces or changes the form of consideration payable to the Northern
Bank shareholders. Any amendment to the merger agreement must be in writing and
signed on behalf of Cowlitz Bancorp, Cowlitz Bank and Northern Bank.

    At any time prior to the effective date, Cowlitz Bancorp or Northern Bank
may (a) extend the time for the other party to perform its obligations,
(b) waive any inaccuracies contained in the representations and warranties in
the merger agreement or any document delivered pursuant to the merger agreement,
and (c) waive compliance with any of the agreements or conditions contained in
the merger agreement. Any such extension or waiver must be in writing and signed
on behalf of the party agreeing to the extension or waiver.

TERMINATION OF THE MERGER AGREEMENT

    Cowlitz Bancorp and Northern Bank may terminate the merger agreement by
mutual consent. The merger agreement also may be terminated unilaterally by
either Cowlitz Bancorp or Northern Bank:

    - if the approval of any governmental authority required for the completion
      of the merger and the other transactions contemplated by the merger
      agreement is denied by final non-appealable action;

                                       39
<PAGE>
    - if the merger does not occur on or before March 31, 2000, although this
      date will be extended to June 30, 2000 if the failure is due solely to a
      delay in obtaining regulatory approvals;

    - in certain events involving a material breach by the other party of any of
      its representations, warranties or covenants in the merger agreement, or
      any related agreements pertaining to the merger; or

    - if the required shareholder approvals are not obtained.

    Cowlitz Bancorp may terminate the merger agreement if:

    - Northern Bank's board of directors withdraws, modifies or changes its
      approval or its recommendation that the Northern Bank shareholders approve
      the merger agreement;

    - there is a "change in control" of Northern Bank (defined as the
      acquisition of 30% of the voting power of Northern Bank's capital stock);

    - any person acquires beneficial ownership of 25% or more of the then
      outstanding shares of Northern Bank common stock, or Northern Bank enters
      into an agreement to engage in, or Northern Bank's board of directors
      recommends that the Northern Bank shareholders approve (a) a merger or
      consolidation, or any similar transaction, involving Northern Bank or any
      significant subsidiary of Northern Bank, (b) a purchase, lease or other
      acquisition or assumption of all or a substantial portion of the assets or
      deposits of Northern Bank, or (c) a purchase or other acquisition of
      securities representing 25% or more of the voting power of Northern Bank
      (those events are referred to below as "subsequent triggering events"); or

    - a tender offer or exchange offer is commenced for 25% or more of the
      outstanding Northern Bank common stock and Northern Bank's board of
      directors recommends that the Northern Bank shareholders tender their
      shares in this offer or fails to recommend that the Northern Bank
      shareholders reject the offer.

    Northern Bank may terminate the merger agreement if, prior to approval of
the merger by the Northern Bank shareholders, a "superior proposal" is made and
Northern Bank's board of directors determines that failure to terminate the
merger agreement in order to accept the proposal would constitute a breach of
fiduciary duty. A "superior proposal" will exist if:

    - a third party inquires about, proposes or makes (a) a tender or exchange
      offer or a merger, consolidation or other business combination involving
      Northern Bank, or (b) an offer or proposal to acquire 25% or more of the
      voting stock or equity, or a substantial portion of the assets, of
      Northern Bank; and

    - any financing to support the proposal is committed or reasonably capable
      of being obtained; and

    - Northern Bank's board of directors determines that the proposal represents
      superior value to Northern Bank shareholders.

    However, Northern Bank's board of directors may not terminate the merger
agreement to pursue a superior proposal unless it has given Cowlitz Bancorp 10
business days prior written notice of its intention and offered Cowlitz Bancorp
the opportunity to amend the terms of the merger agreement. Northern Bank also
must pay Cowlitz Bancorp a $425,000 termination fee at the time it enters into a
definitive agreement to consummate that transaction. See "--Termination Fees"
below.

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<PAGE>
TERMINATION FEES

    The merger agreement requires Northern Bank to pay a $425,000 termination
fee to Cowlitz Bancorp if the merger agreement is terminated by Cowlitz Bancorp
upon any of the following events:

    - Northern Bank's board of directors withdraws, modifies or changes its
      recommendation that the Northern Bank shareholders approve the merger;

    - a "change in control" (as defined above) of Northern Bank occurs;

    - a third party makes a tender or exchange offer for 25% or more of the
      outstanding Northern Bank shares unless the Northern Bank board recommends
      that the shareholders reject that proposal;

    - Northern Bank willfully breaches any representation, warranty, covenant or
      other agreement in the merger agreement, if at the time of that breach
      another party has made an alternative proposal to acquire Northern Bank;
      or

    - a "subsequent triggering event" (as defined in "--Termination of the
      Merger Agreement" above) occurs.

    Northern Bank also must pay this fee if either Cowlitz Bancorp or Northern
Bank terminates the merger agreement because the Northern Bank shareholders fail
to approve the merger if an alternative proposal to acquire Northern Bank had
been publicly disclosed at the time of such failure. In addition, Northern Bank
must pay the termination fee if it terminates the merger agreement because of a
"superior proposal" (as defined in "--Termination of the Merger Agreement"
above).

    Northern Bank will not be required to pay a termination fee, however, if
immediately prior to the termination, Northern Bank was entitled to terminate
the merger agreement because of a breach of the merger agreement by Cowlitz
Bancorp. If Northern Bank fails to timely pay the $425,000 termination fee,
Northern Bank must pay the costs and expenses incurred by Cowlitz Bancorp to
collect such payment, together with interest.

THE OPTION AGREEMENT

    Cowlitz Bancorp and Northern Bank have entered into an option agreement
commonly known as a "lock-up option." Under the option agreement, Northern Bank
granted to Cowlitz Bancorp an option to purchase up to 243,893 Northern Bank
shares (approximately 19.9% of the issued and outstanding shares) at a price of
$4.625 per share. A copy of the option agreement is attached to this joint proxy
statement as Appendix G and is incorporated by reference.

    The option may be exercised in whole or in part if both an "initial
triggering event" (as defined below) and a "subsequent triggering event" (as
defined above in "--Termination of the Merger Agreement") occur prior to
termination of Cowlitz Bancorp's ability to exercise the option. Under the
option agreement, an "initial triggering event" will occur if:

    - Northern Bank enters into an agreement with a third party to engage in, or
      the Northern Bank board recommends that the Northern Bank shareholders
      approve or accept a third party's offer to engage in, (a) a merger or
      consolidation, or any similar transaction, involving Northern Bank, (b) a
      purchase, lease or other acquisition or assumption of all or a substantial
      portion of Northern Bank's assets or deposits, or (c) a purchase or other
      acquisition of securities representing 10% or more of the voting power of
      Northern Bank (any such event being referred to herein as an "acquisition
      transaction");

    - Northern Bank authorizes, recommends, proposes or publicly announces an
      intention to authorize, recommend or propose an acquisition transaction;

                                       41
<PAGE>
    - Northern Bank's board fails to recommend or withdraws its recommendation
      that Northern Bank shareholders approve the merger;

    - Any person (other than specified current holders) acquires beneficial
      ownership of 10% or more of the outstanding Northern Bank common stock;

    - The Northern Bank shareholders fail to approve the merger agreement after
      any person proposes an "acquisition transaction";

    - Northern Bank willfully breaches any covenant, obligation, representation
      or warranty in the merger agreement, which would entitle Cowlitz Bancorp
      to terminate the merger agreement, after a third party makes an overture
      to Northern Bank or the Northern Bank shareholders to engage in an
      "acquisition transaction";

    - Any person files an application or notice with any federal or state bank
      regulatory authority for approval to engage in an "acquisition
      transaction"; or

    - Any person commences or publicly announces an intention to commence a
      tender offer or exchange offer for securities representing 10% or more of
      the voting power of Northern Bank.

    Cowlitz Bancorp's option will terminate upon (a) the effective date of the
merger; (b) termination of the merger agreement according to its terms before an
initial triggering event occurs; (c) 12 months after the merger agreement
terminates following an initial triggering event, or is terminated by Cowlitz
Bancorp because of a breach by Northern Bank of its representations, warranties,
covenants or agreements in the merger agreement (subject to certain extensions
stated in the option agreement); or (d) Cowlitz Bancorp receives payment of the
termination fees.

    Cowlitz Bancorp's maximum benefit under the termination fee and the option
agreement generally is limited to $425,000 before taxes. Cowlitz Bancorp cannot
exercise the option if it has received payment of termination fees, and cannot
receive termination fees if it has exercised all or any part of the option.

    Cowlitz Bancorp and Northern Bank believe the termination fees and option
described above are customary and typical for transactions such as the proposed
merger. These agreements are intended, among other things, to increase the
likelihood that the merger will be completed according to the terms of the
merger agreement and, if the merger is not completed because a third party
acquires or attempts to acquire Northern Bank, to compensate Cowlitz Bancorp for
its efforts, expenses and lost opportunities. These agreements may discourage
acquisition offers by third parties to, even if there are parties that otherwise
would be prepared to pay a greater price or offer more attractive terms.

CONDUCT OF BUSINESS PENDING THE MERGER AND OTHER AGREEMENTS

    Except as expressly contemplated or permitted by the merger agreement and
any of its disclosure schedules, or required by applicable law, Northern Bank
has agreed before the effective date to:

    - conduct its business in the ordinary and usual course consistent with past
      practices;

    - use its reasonable best efforts to maintain and preserve intact its
      business organization, employees and relationships and retain the services
      of its officers and key employees;

    - refrain from taking any action reasonably expected to affect its ability
      to obtain any governmental approvals necessary to complete the merger;

    - file all tax returns required to be filed for all periods ending on or
      prior to the effective date;

    - use its reasonable best efforts to sell all of its obligations under a
      specific accounts receivable financing program; and

                                       42
<PAGE>
    - establish reasonable reserves for certain current disputes.

    In addition, except as expressly contemplated or permitted by the merger
agreement and any of its disclosure schedules, or required by applicable law,
Northern Bank has agreed that it will not, without the prior written consent of
Cowlitz Bancorp, among other things:

    - issue any additional shares of Northern Bank common stock (except upon the
      exercise of stock options outstanding as of the date of the merger
      agreement) or grant any stock appreciation rights or rights to acquire its
      capital stock;

    - adjust, split, combine, reclassify, redeem, purchase or otherwise acquire
      any capital stock or declare or pay dividends except in the ordinary and
      usual course of business consistent with past practices;

    - incur any indebtedness for borrowed money other than certain permitted
      indebtedness;

    - subject to certain exceptions, increase in any material respect
      compensation or fringe benefits of any of its employees, pay any pension
      or retirement allowance not required under an existing plan or agreement,
      or enter into or modify any employee benefit plans or employment
      agreements or accelerate the vesting of any stock options or other
      stock-based compensation;

    - sell, transfer, mortgage or encumber or otherwise dispose of any of its
      properties or assets or cancel, release or assign any indebtedness to any
      person except for nonmaterial transactions in the ordinary course of
      business consistent with past practice or as expressly required by
      contracts in existence on the date of the merger agreement;

    - form any subsidiary or make any acquisition or investment in, or make any
      property transfers to, or material purchases, of any property or assets
      of, any other entity;

    - amend its certificate of incorporation, bylaws or similar governing
      documents;

    - enter into, renew or terminate any contract or agreement, other than loans
      made in the ordinary course of business, that calls for aggregate annual
      payments of $50,000 or more and which either is not terminable at will on
      60 days or less notice without payment of a penalty in excess of $20,000,
      or has a term of less than one year;

    - make any changes in its accounting methods unless required under generally
      accepted accounting principles, law, rule or regulation, as concurred by
      its independent public accountants;

    - settle any material litigation except in the ordinary course of business
      consistent with past practice;

    - make or acquire loans or issue commitments for any loans except in the
      ordinary course of business consistent with past practice at not less than
      the prevailing market rates or agree to issue any letters of credit or
      guarantee the obligation of other persons except for letters of credit
      issued in the ordinary course of business consistent with past practice;

    - take any action intended or reasonably expected to result in any of its
      representations or warranties being or becoming untrue in any material
      respect, any closing condition not being satisfied, or in a violation of
      any provision of the merger agreement, except as required by applicable
      law;

    - subject to certain exceptions, make capital expenditures in excess of
      specified amounts;

    - foreclose on or otherwise acquire any real property other than 1-to-4
      family residential properties in the ordinary course of business;

                                       43
<PAGE>
    - subject to certain exceptions, open, relocate or close any branch or loan
      production or servicing facility or make any application therefor;

    - materially change its investment securities portfolio policy or the manner
      in which its portfolio is classified or reported, except in the ordinary
      course of business consistent with past practice;

    - except as required to comply with current outstanding cease and desist
      orders, make any material changes with respect to its policies and
      practices with respect to hedging its loan positions or commitments;

    - except as required to comply with current outstanding cease and desist
      orders, make any material change in its policies and practices with
      respect to underwriting, pricing, originating, acquiring, selling,
      servicing, or buying or selling rights to service loans;

    - except as otherwise permitted, engage or participate in any material
      transaction or incur or sustain any material obligation not in the
      ordinary course of business;

    - except as required to comply with certain current outstanding cease and
      desist orders, increase the number of employees from the number employed
      as of June 30, 1999;

    - take any actions that would prevent the merger from qualifying as a
      tax-free "reorganization" under the Internal Revenue Code;

    - except as required to comply with certain existing cease and desist
      orders, agree to or make any commitment to take any of the foregoing
      actions.

    In addition, except as expressly contemplated or permitted by the merger
agreement or required by applicable law, Cowlitz Bancorp has agreed that it will
not, without the prior written consent of Northern Bank, amend its articles of
incorporation or bylaws in a manner that would materially and adversely affect
the economic benefits of the merger to holders of Northern Bank common stock, or
agree to or make any commitment to take such action.

    In the merger agreement, Northern Bank has agreed not to authorize or permit
any of its officers, directors, employees, representatives or agents to solicit
or encourage any inquiries or proposals, participate in any discussions or
negotiations regarding, or provide any confidential information to any person
relating to, or otherwise facilitate any effort or attempt to make or implement,
any "takeover proposal" (as defined below). However, at any time before the
Northern Bank shareholders vote to approve the merger agreement, Northern Bank
may provide third parties with nonpublic information and participate in
discussions and negotiations with any third party relating to a "takeover
proposal" that it has not solicited after the date of the merger agreement if it
complies with certain limitations. In particular, Northern Bank may only respond
to an inquiry or proposal if its board of directors has determined in its
reasonable good faith judgment based on advice of outside counsel and financial
advisors that failure to do so would breach its fiduciary duties under
applicable law. Northern Bank will advise Cowlitz Bancorp immediately of any
such inquiry or proposal and inform Cowlitz Bancorp of the terms and status of
any proposal unless it would constitute a breach of the board's fiduciary duty.
Northern Bank may not furnish any nonpublic information to any third party
except pursuant to the terms of a confidentiality agreement containing terms
substantially identical to the terms of the confidentiality agreement between
Northern Bank and Cowlitz Bancorp. The merger agreement defines a "takeover
proposal" as any inquiry, proposal or offer relating to any tender or exchange
offer, proposal for a merger, consolidation or other business combination
involving Northern Bank, or the acquisition in any manner of 25% or more of the
voting stock or equity, or a substantial portion of the assets, of Northern
Bank, other than the transactions contemplated by the merger agreement.

                                       44
<PAGE>
    Northern Bank and Cowlitz Bancorp have also agreed to cooperate with each
other and to use their reasonable best efforts to promptly prepare all necessary
documentation, to effect all filings, and to obtain and comply with the terms or
conditions of, all permits, consents, approvals and authorizations of all third
parties and governmental entities necessary or advisable to consummate the
transactions contemplated by the merger agreement. Northern Bank and Cowlitz
Bancorp have agreed subject to the restrictions set forth in the merger
agreement, to furnish to the other party all information concerning themselves
and their subsidiaries, directors, officers and shareholders and such other
matters as may be necessary in furtherance of the merger upon request and to
permit reasonable access to their properties, books, contracts and records.
Northern Bank and Cowlitz Bancorp have also agreed, subject to the terms and
conditions of the merger agreement, to use their reasonable best efforts to
take, or cause to be taken, all actions necessary, proper or advisable to comply
promptly with all legal requirements which may be imposed or which are necessary
or advisable to consummate and make the merger effective. Cowlitz Bancorp has
further agreed to use its reasonable best efforts to cause the shares of Cowlitz
Bancorp common stock to be issued in the merger to be approved for listing on
Nasdaq, subject to official notice of issuance.

    Cowlitz Bancorp will also cooperate with the current officers and directors
of Northern Bank so that they are covered, to the extent available and subject
to specific limitations, by a directors' and officers' liability insurance
covering claims arising from facts or events occurring prior to the effective
date, for a period of three years after the merger. See "--Interests of Certain
Persons in the Merger."

EXPENSES AND FEES

    Except for any termination fee that may become payable as discussed in
"--Termination Fees" above, all legal and other costs and expenses incurred in
connection with the merger agreement and related transactions will be borne by
the party incurring such costs and expenses unless otherwise specified in the
merger agreement.

ACCOUNTING TREATMENT

    Cowlitz Bancorp will account for the merger as a purchase in accordance with
generally accepted accounting principles. The reported results of operations of
Cowlitz Bancorp will include the results of Northern Bank from and after the
closing date of the merger. The assets, including intangible assets, and
liabilities of Northern Bank will be recorded at their fair values as of the
closing date of the merger. Any excess of the purchase consideration over the
fair values of the assets and liabilities of Northern Bank will be recorded as
goodwill and amortized over a ten year period.

NASDAQ LISTING OF COWLITZ BANCORP COMMON STOCK

    The merger agreement requires Cowlitz Bancorp to use its best efforts to
cause the shares of Cowlitz Bancorp common stock to be issued in the merger to
be approved for listing on The Nasdaq National Stock Market, subject to official
notice of issuance, before the effective date.

RESALE OF COWLITZ BANCORP STOCK RECEIVED BY NORTHERN BANK SHAREHOLDERS

    The Cowlitz Bancorp shares to be issued to Northern Bank shareholders upon
completion of the merger have been registered under the Securities Act and may
be traded freely without restriction by those shareholders who are not deemed to
be "affiliates" of Northern Bank or Cowlitz Bancorp, as that term is defined in
rules promulgated under the Securities Act.

    Cowlitz Bancorp common stock received by those Northern Bank shareholders
who are deemed to be "affiliates" of Northern Bank at the time of the Northern
Bank shareholders meeting with respect to the merger may be resold without
registration under the Securities Act only as permitted by Rule 145 under the
Securities Act or as otherwise permitted under the Securities Act. Northern Bank

                                       45
<PAGE>
has agreed to use its reasonable best efforts to cause each "affiliate" to
deliver a written agreement relating to these transfer restrictions.

APPRAISAL RIGHTS

    Under Oregon law, shareholders who dissent from a proposed bank merger are
entitled to dissenters' rights under ORS 711.175 to ORS 711.185. In order to
perfect his or her dissenters' rights, a shareholder must notify Northern Bank
at or before the shareholder meeting that he or she is dissenting as to all
shares of Northern Bank he or she beneficially owns. Within 30 days after the
effective date, dissenting shareholders will receive from Cowlitz Bancorp, as
the surviving company, an acknowledgement of their dissent with a written offer
to pay cash for the fair market value of those shares as determined by Cowlitz
Bancorp. If a shareholder notifies Cowlitz Bancorp that he or she accepts the
offer, Cowlitz Bancorp will pay the fair market value to the shareholders within
30 days after receiving the acceptance.

    If a shareholder declines Cowlitz Bancorp's offer, the Oregon Department of
Consumer and Business Services will appoint an appraiser, who will make a final
determination of fair market value. Within 30 days after receiving the
appraiser's valuation, Cowlitz Bancorp must notify the dissenting Northern Bank
shareholders of the valuation. One-half the costs of appraisal would be borne by
Cowlitz Bancorp and one-half shared pro rata among the dissenting shareholders
unless the appraised value differs by more than 15% from Cowlitz Bancorp's
initial offer to dissenters. If Cowlitz Bancorp's offer was less than the
appraiser's valuation by more than 15%, Cowlitz Bancorp would be required to pay
the entire cost of valuation. If Cowlitz Bancorp's offer was more than the
appraiser's valuation by more than 15%, the dissenting shareholders who did not
accept Cowlitz Bancorp's initial offer would bear the entire cost of the
valuation on a pro rata basis.

INTERESTS OF CERTAIN PERSONS IN THE MERGER

    Some members of Northern Bank's management and board of directors have
interests in the merger that are in addition to their interests as Northern Bank
shareholders generally. The Northern Bank board of directors was aware of these
interests and considered them in approving the merger agreement.

NORTHERN BANK

    INDEMNIFICATION; DIRECTORS' AND OFFICERS' INSURANCE.  The merger agreement
provides that Cowlitz Bancorp will cooperate with those persons serving as
officers and directors of Northern Bank immediately before the merger so that
they are covered for three years after the merger by a directors' and officers'
liability insurance policy, to the extent available, which will contain
substantially the same coverage, amounts, terms and conditions as Northern
Bank's policy in effect on the date of the merger agreement. However, the merger
agreements provides that Cowlitz Bancorp will not be required to expend in any
one year more than 100% of the annual premiums paid by Northern Bank for
directors' and officers' insurance as of the date of merger agreement.

    COWLITZ BANCORP STOCK OPTIONS.  In exchange for the surrender of options to
purchase Northern Bank common stock prior to the effective date, Cowlitz Bancorp
granted the following individuals, each of whom is a Northern Bank director,
options to purchase the number of shares of Cowlitz Bancorp common stock set
forth opposite their names below at an exercise price equal to 1.4 times the
book value per share of Cowlitz Bancorp common stock as of the effective date,
after taking into account the

                                       46
<PAGE>
shares to be issued in the merger. These options are immediately vested upon
issuance and have a term of ten years.

<TABLE>
<CAPTION>
OPTIONEE                                                      NUMBER OF SHARES
--------                                                      ----------------
<S>                                                           <C>
William V. Spicer...........................................       21,400

Christopher Brown...........................................       21,400

John F. Walrod..............................................       21,400

Kurt G. Wollenberg..........................................       17,266
</TABLE>

    In addition, Cowlitz Bancorp granted John H. Holloway, Jr., a Northern Bank
director and Director of Marketing and its former Chairman, President and Chief
Executive Officer, an option to purchase 150,000 shares of Cowlitz Bancorp
common stock at an exercise price of $12.00 per share. This option was granted
in exchange for Mr. Holloway surrendering options he currently holds to purchase
Northern Bank common stock and agreeing to waive payment of amounts which would
otherwise become due as a result of the merger under "change of control"
provisions in his employment agreement. Twenty percent of this option will be
immediately vested as of the effective date, and the remainder will vest in four
equal installments on each annual anniversary of the effective date. This option
has a term of ten years. As described in "Employee Matters--Employee Options"
below, the stock options listed above may be reduced to provide for the issuance
of stock options on similar terms and conditions to specified Northern Bank
employees who become employed by Cowlitz Bancorp or an affiliate after the
effective date of the merger.

    EMPLOYMENT AGREEMENT WITH COWLITZ BANK.  In connection with the merger,
Mr. Holloway has entered into an employment agreement with Cowlitz Bank to serve
as the Director of Marketing for the Greater Portland area. The terms of this
employment agreement are described below under "--Employee Matters."

COWLITZ BANCORP

    As of November 30, 1999, a director of Cowlitz Bancorp beneficially owned
450 shares of Northern Bank common stock.

EMPLOYEE MATTERS

    EMPLOYMENT ARRANGEMENTS

    In connection with the merger, Cowlitz Bank has entered into an employment
agreement with Mr. Holloway on an "at-will" basis to serve as Cowlitz Bank's
Director of Marketing for the Greater Portland area. Mr. Holloway will receive
an annual base salary of $123,000, as well as the use of an automobile. In
addition, Mr. Holloway will receive other employee benefits that are comparable
to other similarly situated employees of Cowlitz Bank (other than stock
options). This employment agreement may be terminated by Cowlitz Bank at any
time without any further liability to Mr. Holloway.

    Mr. Holloway was a party to an employment agreement with Northern Bank that
provides for compensation upon a "change of control" of Northern Bank, which
compensation would become payable in connection with the merger. In full
satisfaction of Northern Bank's obligations under that agreement in connection
with the merger, Cowlitz Bancorp agreed to grant Mr. Holloway an option to
purchase 150,000 shares of Cowlitz Bancorp common stock at an exercise price of
$12.00 per share. See "--Interests of Certain Persons in the Merger" above.

    Following the merger, William V. Spicer will serve as a director of Cowlitz
Bank. Mr. Spicer will be compensated in a manner similar to Cowlitz Bank's other
outside directors. In addition, Messrs. Walrod

                                       47
<PAGE>
and Wollenberg, who are currently directors of Northern Bank, will serve as
members of the loan committee that will administer the identified loans pursuant
to the escrow agreement described above. For their services on this committee,
Messrs. Walrod and Wollenberg will be paid $1,000 per year during each of the
two years in which the escrow is to be maintained.

    EMPLOYEE OPTIONS

    Mr. Holloway and the other Northern Bank directors who will be granted
Cowlitz Bancorp options as described above have agreed to reduce the number of
options they would otherwise be issued in order to provide for the issuance of
stock options to previously identified Northern Bank employees who become
employed by Cowlitz Bank after the merger. Any options issued to Northern Bank
employees based on these reductions will have similar terms as the options which
would have been issued to Mr. Holloway and the Northern Bank directors,
respectively, except that they are subject to a continuation of employment
requirement, and only twenty percent of these employees' options will be
immediately vested with the remainder to vest in four equal installments on each
anniversary of the effective date of the merger.

    EMPLOYEE BENEFIT PLANS

    Under the merger agreement, Cowlitz Bank has agreed from and after the
effective date to (a) comply with the Northern Bank employee benefit plans,
arrangements and agreements in accordance with their terms; (b) provide Northern
Bank employees who remain as Cowlitz Bank employees credit for years of service
with Northern Bank prior to the effective date for the purpose of eligibility
and vesting; and (c) cause any and all "pre-existing condition" limitations (to
the extent such limitations did not apply to the pre-existing condition under
comparable Northern Bank compensation and benefit plans) and eligibility waiting
periods under group health plans of Cowlitz Bank to be waived with respect to
former employees of Northern Bank who remain as employees of Cowlitz Bank (and
their eligible dependents) and who become participants in these group health
plans. However, Cowlitz Bancorp and its subsidiaries will be entitled to amend,
modify or terminate any Northern Bank compensation and benefit plans, or other
contracts, arrangements, commitments or understandings, in a manner consistent
with their terms and applicable law.

CERTAIN FEDERAL INCOME TAX CONSEQUENCES

    The following discussion summarizes certain federal income tax
considerations generally applicable to the Northern Bank shareholders. The
discussion below is based on United States federal income tax law, including the
Internal Revenue Code of 1986, as amended (the "Code"), regulations, rulings,
decisions and administrative practice all as in effect on the date hereof.
Future legislation, regulations, administrative interpretations or court
decisions could change such laws either prospectively or retroactively and
affect the federal income tax consequences of the merger to the Northern Bank
shareholders.

    This discussion assumes that Northern Bank shareholders hold their Northern
Bank common stock as capital assets within the meaning of Section 1221 of the
Code. This discussion does not address the tax consequences of the merger under
state, local or foreign law, nor does the discussion address all aspects of
federal income taxation that may be important to a Northern Bank shareholder in
light of his or her particular circumstances or tax issues that may be
significant to Northern Bank shareholders subject to special rules such as:

    - dissenting shareholders;

    - financial institutions;

    - foreign individuals and entities;

    - tax-exempt entities;

                                       48
<PAGE>
    - persons who are subject to the alternative minimum tax provisions of the
      Code;

    - persons who acquired their common stock pursuant to the exercise of an
      employee option (or otherwise as compensation);

    - persons who acquired or hold their Northern Bank common stock as a hedge
      or as part of a hedging, straddle, conversion or other risk reduction
      transaction;

    - dealers in securities;

    - banks; and

    - insurance companies.

    In addition, the following discussion does not address the tax consequences
of transactions occurring before or after the merger (whether or not such
transactions are in connection with the merger).

    Because the tax consequences of the merger to the Northern Bank shareholders
depend on the relative value of the Cowlitz Bancorp common stock and cash
received as consideration in the merger, which will not be known until the time
of the merger, the tax consequences of the merger cannot be determined with
certainty before the effective date of the merger. Neither a ruling from the IRS
nor an opinion of tax counsel will be received with respect to the United States
federal income tax treatment of the merger. Following closing, Cowlitz Bancorp
will advise former Northern Bank shareholders as to the final breakdown of the
value of the merger consideration between cash and Cowlitz Bancorp stock and how
it intends to treat the merger for federal income tax purposes. The treatment by
Cowlitz Bancorp is not binding on the former Northern Bank shareholders, who
should consult with their tax advisors regarding this determination and its
consequences. ACCORDINGLY, NORTHERN BANK SHAREHOLDERS ARE URGED TO CONSULT THEIR
OWN TAX ADVISORS AS TO THE SPECIFIC TAX CONSEQUENCES OF THE MERGER TO THEM,
INCLUDING THE APPLICABLE FEDERAL, STATE, LOCAL AND FOREIGN TAX CONSEQUENCES.

    REQUIREMENTS FOR A PARTIALLY TAX FREE REORGANIZATION

    To qualify as a "reorganization" for federal income tax purposes, the merger
must satisfy certain statutory and judicial requirements, including the
"continuity of interest" requirement. The tax consequences of the merger if it
meets these requirements are discussed below under the heading "Partially Tax
Free Reorganization". To satisfy the "continuity of interest" requirement, the
Cowlitz Bancorp common stock delivered in the merger must represent a
substantial portion of the overall consideration received by Northern Bank
shareholders. For advance ruling purposes, the Internal Revenue Service takes
the position that the continuity of interest requirement will be satisfied if at
least 50% of the value of all of the consideration payable in the merger
consists of stock in the acquiring corporation; courts have found this
requirement satisfied at thresholds less than 50%. However, this determination
can be highly fact specific, particularly in transactions in which stock
represents less than 50% of the total consideration, and there can be no
certainty that the IRS or the courts would view this transaction as a
reorganization. In addition, to satisfy the continuity of interest requirement,
Northern Bank shareholders, must not, pursuant to a plan existing at or prior to
the effective date of the merger, dispose of or transfer so much of either
(i) their Northern Bank stock in anticipation of the merger to Cowlitz Bancorp
or to any person related to Cowlitz Bancorp or (ii) the Cowlitz Bancorp common
stock to be received in the merger to Cowlitz Bancorp or to any persons related
to Cowlitz Bancorp, such that the Cowlitz Bancorp stock that the Northern Bank
shareholders collectively own after such disposition or transfer no longer
represents a substantial portion of the overall consideration received in the
merger.

    Because, as discussed above under "The Merger Consideration" the number of
shares of Cowlitz Bancorp common stock which will be received by the Northern
Bank shareholders and the value of such shares will not be known until the
effective date of the merger, it is unclear at this time whether

                                       49
<PAGE>
the Cowlitz Bancorp stock will represent a substantial portion of the total
consideration received. Therefore it is not known whether the continuity of
interest requirement will be satisfied. If that requirement or any other
applicable requirement is not satisfied, the merger will not be treated as a
reorganization, but instead will be treated as a taxable sale. The consequences
to the Northern Bank shareholders and to Cowlitz Bancorp, Cowlitz Bank and
Northern Bank of such a transaction are discussed below under "Taxable
Transaction".

    PARTIALLY TAX FREE REORGANIZATION

    The following discussion applies only if the merger qualifies as a
reorganization for federal income tax purposes. If this is the case, no gain or
loss will be recognized by Cowlitz Bancorp, Cowlitz Bank or Northern Bank as a
result of the merger. Northern Bank shareholders will recognize gain, if any,
with respect to their shares of Northern Bank common stock surrendered in the
merger but only to the extent of the lesser of (a) the amount of gain realized
with respect to such Northern Bank common stock and (b) the amount of cash
received (including the cash deposited in escrow on behalf of Northern Bank
shareholders), but not including cash received in lieu of a fractional share,
which is discussed below. The amount of gain realized with respect to the
exchanged Northern Bank common stock will equal the excess, if any, of the cash,
including the cash received in lieu of a fractional share, and the fair market
value of the Cowlitz Bancorp common stock received over such shareholder's
adjusted tax basis in the Northern Bank common stock exchanged therefor. No loss
will be recognized by Northern Bank shareholders in the merger, except in
connection with cash received in lieu of a fractional share, as discussed below.
The determination of gain, which is recognized or loss which is not, is to be
made on a share by share basis. That is, each Northern Bank share, or block of
shares acquired at the same price, will be treated as exchanged for a pro rata
portion of cash and Cowlitz Bancorp common stock.

    Any gain recognized will be treated as capital gain unless, as discussed
below, the receipt of the cash has the effect of the distribution of a dividend
for federal income tax purposes, in which case such gain will be treated as
ordinary dividend income to the extent of the shareholder's ratable share of
Northern Bank's current or accumulated earnings and profits. Any capital gain
will be long-term capital gain if, as of the date of the merger, the holding
period for such stock is more than one year.

    The adjusted tax basis of the Cowlitz Bancorp common shares received in such
exchange, including any fractional interest in a Cowlitz Bancorp share for which
cash is received, generally will be equal to the tax basis of the shares
surrendered therefor, decreased by the amount of cash received and increased by
the amount of gain or dividend income recognized, if any. The holding period of
the Cowlitz Bancorp common stock received will include the holding period of
Northern Bank common stock exchanged therefor. As a result of these "substitute"
basis rules, in general, any gain inherent or loss with respect to Northern Bank
common stock that is not recognized in the merger will be reflected as the
difference between the basis and the value of the Cowlitz Bancorp common stock
received therefor, after making the basis adjustments described above.

    In determining whether gain recognized with respect to cash received by a
Northern Bank shareholder pursuant to the merger will be treated as a dividend,
a Northern Bank shareholder will be treated as if the portion of the Northern
Bank common stock exchanged for cash in the merger had been instead exchanged
for Cowlitz Bancorp common stock, followed immediately by a redemption of such
hypothetical shares by Cowlitz Bancorp for cash, referred to in this document as
the "hypothetical redemption." A Northern Bank shareholder will recognize
capital gain rather than dividend income with respect to the cash received if
the hypothetical redemption is "not essentially equivalent to a dividend" or is
"substantially disproportionate" with respect to such shareholder, taking into
account in each case the shareholder's actual and constructive ownership of
Cowlitz Bancorp common shares.

                                       50
<PAGE>
    The hypothetical redemption would be "not essentially equivalent to a
dividend" with respect to a Northern Bank shareholder if, based on all the facts
and circumstances, it results in a "meaningful reduction" in such shareholder's
percentage ownership of Cowlitz Bancorp common shares. The Internal Revenue
Service has indicated in a published ruling that a shareholder in a
publicly-held corporation whose relative stock interest in the corporation is
minimal and who exercises no control over corporate affairs is generally treated
as having a meaningful reduction in his or her stock after a redemption
transaction if his or her percentage stock ownership in the corporation has been
reduced to any extent, taking into account the shareholder's actual and
constructive ownership before and after the hypothetical redemption.

    The hypothetical redemption transaction would be "substantially
disproportionate," and therefore would not have the effect of the distribution
of a dividend with respect to a Northern Bank shareholder if the percentage of
Cowlitz Bancorp common stock actually and constructively owned by such
shareholder immediately after the hypothetical redemption is less than 80% of
the percentage of Cowlitz Bancorp common shares actually, hypothetically and
constructively owned by such shareholder immediately after both the actual and
deemed receipt of the Cowlitz Bancorp common shares, but before the hypothetical
redemption.

    In the case of an individual, capital gain is generally subject to
preferential long term capital gain rates if such individual has held his or her
common stock for more than one year at the time of the merger, and as short-term
capital gain, taxable at the higher ordinary income tax rate, if the individual
has held his or her common stock for one year or less at the time of the
consummation of the merger. The deductibility of capital losses is substantially
limited.

    Northern Bank shareholders should consult their tax advisors as to the
possibility that all or a portion of any cash received in the exchange for their
Northern Bank common stock will be treated as a dividend and with respect to the
consequences thereof, including the eligibility of the Northern Bank
shareholders that are corporations for a dividend received deduction and
treatment of the dividend as a "extraordinary dividend" under Section 1059 of
the Code.

    CASH RECEIVED IN LIEU OF FRACTIONAL SHARES

    A Northern Bank Shareholder who receives cash in lieu of a fractional share
of Cowlitz Bancorp common stock will be treated as having received such
fractional share pursuant to the merger and then as having exchanged such
fractional share for cash in a redemption by Cowlitz Bancorp. Such a deemed
redemption will be treated as a sale of the fractional share, provided that it
is either "not essentially equivalent to a dividend" or is "substantially
disproportionate" with respect to the Northern Bank shareholder, as discussed in
the preceding section. If the deemed redemption is treated as a sale of a
fractional share, a Northern Bank shareholder will recognize gain or loss equal
to the difference between the amount of cash received and the portion of the
basis of the Cowlitz Bancorp common stock allocable to such fractional share
interest. Such gain or loss will be long-term capital gain or loss if, as of the
date of the merger, the holding period for such shares is more than one year.

    TAXABLE TRANSACTION

    If the merger does not qualify as a reorganization under the Code, (as a
result of a failure of the "continuity of interest" requirement or otherwise),
Northern Bank shareholders will recognize gain or loss with respect to each
share of Northern Bank common stock surrendered equal to the difference between
that shareholder's basis in such share and the fair market value, as of the
effective date of the merger, of the Cowlitz Bancorp common stock and the cash
(including the cash deposited in escrow on behalf of the Northern Bank
shareholders) received in exchange therefore. Such gain or loss recognized by a
Northern Bank shareholder will be capital gain or loss; and will be long-term
capital gain or loss if the shareholder held the Northern Bank stock for more
than one year at the time of the merger. As

                                       51
<PAGE>
noted above, the deductibility of capital losses is substantially limited. A
Northern Bank shareholder's aggregate basis in the Cowlitz Bancorp common stock
received would equal its fair market value at the effective date of the merger,
and a Northern Bank shareholder's holding period for such stock would begin the
day after the closing of the merger. In addition, Northern Bank would be treated
as selling all of its assets to Cowlitz Bank in a fully taxable transaction and
Cowlitz Bank and Cowlitz Bancorp would be responsible for paying all taxes due
on any gain recognized by Northern Bank as a result of the merger.

    ESCROWED CASH

    As discussed above under the heading "The Merger Consideration" all of the
cash consideration payable by Cowlitz Bancorp in the merger will be placed in an
escrow account at closing. For federal income tax purposes, the cash will be
treated as if it had been paid directly to the Northern Bank shareholders at the
time of the merger, even though the cash may not be transferred to the Northern
Bank shareholders until a later date and may never be transferred to them at
all. Therefore, Northern Bank shareholders will not be able to defer any gain
they recognize with respect to cash placed into escrow in connection with the
merger under the installment sale method of reporting. A Northern Bank
shareholder will be required to take into account his or her pro rata share of
such cash in determining the amount of gain (or loss in the event of a fully
taxable transaction) if any, that the Northern Bank shareholder will recognize
for the taxable year of such shareholder in which the Merger occurs. Northern
Bank shareholders will be required to report on their federal income tax returns
their allocable share of any income or gain realized with respect to the assets
held in the escrow account, and may be entitled to deduct their allocable share
of any fees or expenses of the escrow, subject to applicable limitations.

    If less than all of the cash placed into the escrow account is ultimately
paid to the Northern Bank shareholders, the tax consequences of this loss are
uncertain. It is possible that a Northern Bank shareholder will recognize gain
with respect to his or her allocable share of the cash consideration placed in
escrow at the time of the merger as discussed above, but will be entitled only
to a capital loss (which cannot be carried back to offset the earlier income) in
the event that he or she ultimately receives less than or none of such cash.
Northern Bank shareholders should consult with their own tax advisors to
determine the tax consequences to them of the cash paid into escrow, the income
on such cash and the consequences to them if less than all or none of the cash
is transferred to them from the escrow.

    INFORMATION REPORTING AND BACKUP WITHHOLDING

    Certain Northern Bank shareholders may be subject to information reporting
and backup withholding at a rate of 31% on some or all of the consideration
received in the merger and their allocable share of income on the cash in
escrow. Backup withholding generally will apply only if a shareholder fails to
furnish a correct social security number or other taxpayer identification number
or otherwise fails to comply with applicable backup withholding rules and
certification requirements. A shareholder who fails to provide the correct
taxpayer identification number on Form W-9 or an appropriate substitute form may
be subject to a $50 penalty imposed by the IRS. Northern Bank shareholders
should consult their tax advisors regarding the imposition of backup withholding
and information reporting with respect to the receipt of cash and Cowlitz
Bancorp shares in the merger and income on the cash held in escrow. Each
shareholder will be required to retain records and file with his or her U.S.
federal income tax return a statement setting forth facts relating to the
merger.

    THE PRECEDING DISCUSSION IS NOT A COMPLETE ANALYSIS OR DISCUSSION OF ALL
POTENTIAL TAX EFFECTS RELEVANT TO THE MERGER. THUS, NORTHERN BANK SHAREHOLDERS
ARE URGED TO CONSULT THEIR OWN TAX ADVISORS AS TO THE SPECIFIC TAX CONSEQUENCES
OF THE MERGER TO THEM, INCLUDING TAX REPORTING REQUIREMENTS, FEDERAL, STATE,
LOCAL AND OTHER APPLICABLE TAX LAWS AND THE AFFECT OF ANY PROPOSED CHANGES IN
THE TAX LAWS.

                                       52
<PAGE>
                   MANAGEMENT AND OPERATIONS OF COWLITZ BANK
                              FOLLOWING THE MERGER

GENERAL

    The merger agreement provides for the merger of Northern Bank with and into
Cowlitz Bank, with Cowlitz Bank as the surviving corporation. The separate
existence of Northern Bank will cease upon completion of the merger and Northern
Bank shareholders will become shareholders of Cowlitz Bancorp as described
herein.

BOARD OF DIRECTORS

    At the effective date, Mr. William V. Spicer, a director of Northern Bank,
will be added to the existing Cowlitz Bank board of directors. Cowlitz Bank
expects to compensate Mr. Spicer in the same manner it compensates its other
outside directors.

OPERATIONS AFTER THE MERGER

    After the merger, Northern Bank will operate as a separate division of
Cowlitz Bank and will retain its name. Cowlitz Bank intends to retain Northern
Bank's existing branches and may expand the number of branches located in
retirement centers. It is anticipated that Cowlitz Bank will retain many of the
existing products and services offered by Northern Bank, although Northern
Bank's Business Manager program will be discontinued. Cowlitz Bank will convert
Northern Bank branches to Cowlitz Bank's information and data processing systems
for certain major functions, including deposit operations, loan servicing and
item processing. Since much of Northern Bank's existing operations will be
retained following the merger, Cowlitz Bancorp does not anticipate any
significant cost savings as a result of the integration of operations following
the merger.

    Prior to the merger, Mr. James Wills, formerly the Executive Vice President
of Cowlitz Bank, was hired as the Chief Lending Officer and Acting President of
Northern Bank and he has become a member of the Northern Bank board of
directors. Cowlitz Bancorp intends to conduct a search following the closing for
a full-time President of the Northern Bank division. It is anticipated that
Mr. Wills will be a candidate for that position.

                                       53
<PAGE>
                    PRO FORMA COMBINED FINANCIAL STATEMENTS

                        PRO FORMA COMBINED BALANCE SHEET

                                  (UNAUDITED)

               (IN THOUSANDS OF DOLLARS, EXCEPT NUMBER OF SHARES)

<TABLE>
<CAPTION>
                                                     HISTORICAL
                                           -------------------------------
                                                 SEPTEMBER 30, 1999           PRO FORMA        PRO FORMA
                                           COWLITZ BANCORP   NORTHERN BANK   ADJUSTMENTS       COMBINED
                                           ---------------   -------------   -----------       ---------
<S>                                        <C>               <C>             <C>               <C>
ASSETS
Cash and due from banks..................     $ 15,173          $ 6,205        $(1,998)(3)     $ 19,380
Investment securities
  Investments available-for-sale.........        8,462            4,720                          13,182
  Investments held-to-maturity...........        4,564                                            4,564
Loans, net...............................      138,539           49,012                         187,551
Premises and equipment...................        6,011              107                           6,118
Federal Home Loan Bank stock.............        3,035               --             --            3,035
Intangible assets........................        5,062               --          3,237 (6)        8,299
Other assets.............................        1,900              943             75 (9)        2,918
                                              --------          -------        -------         --------
TOTAL ASSETS.............................     $182,746          $60,987        $ 1,314         $245,047
                                              ========          =======        =======         ========
LIABILITIES
Deposits.................................     $122,860          $56,024        $    --         $178,884
Borrowings...............................       26,927               --             --           26,927
Other liabilities........................        1,120              454            225 (4)
                                                                                   158 (5)        1,957
                                              --------          -------        -------         --------
TOTAL LIABILITIES........................      150,907           56,478            383          207,768

SHAREHOLDERS' EQUITY
Preferred stock..........................           --               --             --
Common stock.............................       18,887            1,226         (1,226)(8)
                                                                                 5,365 (2)       24,252
Additional paid in capital...............        1,538            2,961         (2,961)(8)        1,538
Retained earnings........................       11,428              351           (158)(5)
                                                                                  (193)(8)
                                                                                    75 (9)       11,503
Net unrealized loss on investments
  available-for-sale.....................          (14)             (29)            29 (8)          (14)
                                              --------          -------        -------         --------
TOTAL SHAREHOLDERS' EQUITY...............       31,839            4,509            931           37,279
                                              --------          -------        -------         --------
TOTAL LIABILITIES AND SHAREHOLDERS'
  EQUITY.................................     $182,746          $60,987        $ 1,314         $245,047
                                              ========          =======        =======         ========
</TABLE>

                                       54
<PAGE>
                     PRO FORMA COMBINED STATEMENT OF INCOME

                                  (UNAUDITED)

    (IN THOUSANDS OF DOLLARS, EXCEPT NUMBER OF SHARES AND PER SHARE AMOUNTS)

<TABLE>
<CAPTION>
                                                    HISTORICAL
                                          -------------------------------
                                                SEPTEMBER 30, 1999           PRO FORMA        PRO FORMA
                                          COWLITZ BANCORP   NORTHERN BANK   ADJUSTMENTS        COMBINED
                                          ---------------   -------------   -----------       ----------
<S>                                       <C>               <C>             <C>               <C>
INTEREST INCOME
Interest and fees on loans..............    $   11,110        $    4,297    $       --        $   15,407
Interest investment securities..........           656                76            --               732
Interest from other banks...............           680               319            --               999
                                            ----------        ----------    ----------        ----------
  Total interest income.................        12,446             4,692            --            17,138
                                            ----------        ----------    ----------        ----------
INTEREST EXPENSE
Deposits................................         2,974             1,949            --             4,923
Borrowings..............................         1,216                --            --             1,216
                                            ----------        ----------    ----------        ----------
  Total interest expense................         4,190             1,949            --             6,139
                                            ----------        ----------    ----------        ----------
  Net interest income before provision
    for loan losses.....................         8,256             2,743            --            10,999
PROVISION FOR LOAN LOSSES...............        (1,065)             (779)           --            (1,844)
                                            ----------        ----------    ----------        ----------
  Net interest income after provision
    for loan losses.....................         7,191             1,964            --             9,155
                                            ----------        ----------    ----------        ----------
NONINTEREST INCOME
Service charge on deposit accounts......           511                48            --               559
Other income............................           691                52            --               743
Net gain (loss) on sale of
  available-for-sale securities.........            (2)               --            --                (2)
                                            ----------        ----------    ----------        ----------
  TOTAL NONINTEREST INCOME..............         1,200               100            --             1,300
                                            ----------        ----------    ----------        ----------
NONINTEREST EXPENSE
Salaries and employee benefits..........         4,228               993            --             5,221
Net occupancy and equipment expense.....           980               186            --             1,166
Other operating expense.................         2,291             1,081           364 (7)         3,736
                                            ----------        ----------    ----------        ----------
  Total noninterest expense.............         7,499             2,260           364            10,123
                                            ----------        ----------    ----------        ----------
  Income (loss) before income taxes.....           892              (196)         (364)              332
Income Taxes (Benefit)..................           341                --           (75)(9)           266
                                            ----------        ----------    ----------        ----------
NET INCOME (LOSS).......................    $      551        $     (196)   $     (289)       $       66
                                            ==========        ==========    ==========        ==========
Basic earnings (loss) per share.........    $     0.14        $    (0.16)                     $      .01
Diluted earnings (loss) per share.......    $     0.13        $    (0.16)                     $      .01
Average common shares outstanding:
  Basic.................................     4,046,872         1,225,597                       4,960,047
  Diluted...............................     4,104,249         1,225,597                       5,017,424
</TABLE>

                                       55
<PAGE>
                     PRO FORMA COMBINED STATEMENT OF INCOME

                                  (UNAUDITED)

    (IN THOUSAND OF DOLLARS, EXCEPT NUMBER OF SHARES AND PER SHARE AMOUNTS)

<TABLE>
<CAPTION>
                                                     HISTORICAL
                                           -------------------------------
                                                  DECEMBER 31, 1998           PRO FORMA        PRO FORMA
                                           COWLITZ BANCORP   NORTHERN BANK   ADJUSTMENTS       COMBINED
                                           ---------------   -------------   -----------       ---------
<S>                                        <C>               <C>             <C>               <C>
INTEREST INCOME
Interest and fees on loans...............     $  14,103        $   4,852      $      --        $  18,955
Interest on investment securities........           958               76             --            1,034
Interest from other banks................         1,305              230             --            1,535
                                              ---------        ---------      ---------        ---------
  Total interest income..................        16,366            5,158             --           21,524
                                              ---------        ---------      ---------        ---------
INTEREST EXPENSE
Deposits.................................         4,942            2,152             --            7,094
Borrowings...............................         1,559               --             --            1,559
                                              ---------        ---------      ---------        ---------
  Total interest expense.................         6,501            2,152             --            8,653
  Net interest income before provision
    for loan losses......................         9,865            3,006             --           12,871
PROVISION FOR LOAN LOSSES................          (509)            (683)            --           (1,192)
                                              ---------        ---------      ---------        ---------
  Net interest income after provision for
    loan losses..........................         9,356            2,323             --           11,679
                                              ---------        ---------      ---------        ---------
NONINTEREST INCOME
Service charge on deposit accounts.......           656               46             --              702
Other income.............................           317              138             --              455
Net gain on sale of available-for-sale
  securities.............................             5               --             --                5
                                              ---------        ---------      ---------        ---------
  Total noninterest income...............           978              184             --            1,162
                                              ---------        ---------      ---------        ---------
NONINTEREST EXPENSE
Salaries and employee benefits...........         3,775            1,004             --            4,779
Net occupancy and equipment expense......           888              244             --            1,132
Other operating expense..................         2,264            1,161            486 (7)        3,911
                                              ---------        ---------      ---------        ---------
  Total noninterest expense..............         6,927            2,409            486            9,822
                                              ---------        ---------      ---------        ---------
  Income (loss) before income taxes......         3,407               98           (486)           3,019
Income Taxes (Benefit)...................         1,181              (22)            --            1,159
                                              ---------        ---------      ---------        ---------
NET INCOME...............................     $   2,226        $     120      $    (486)       $   1,860
                                              =========        =========      =========        =========
Basic earnings per share.................     $    0.60        $    0.10                       $    0.40
Diluted earnings per share...............     $    0.57        $    0.09                       $    0.39
Average common shares outstanding:
  Basic..................................     3,715,901        1,194,517                       4,629,076
  Diluted................................     3,894,095        1,325,517                       4,808,036
</TABLE>

                                       56
<PAGE>
NOTES TO THE PRO FORMA COMBINED FINANCIAL STATEMENTS:

1.  Basis of Presentation

    The unaudited pro forma combined balance sheet combines the historical
consolidated balance sheets of Cowlitz Bancorp and Northern Bank as if the
merger had become effective on September 30, 1999. The pro forma combined
statements of income for the nine months ended September 30, 1999 and the year
ended December 31, 1998 combine the historical consolidated statements of income
of Cowlitz Bancorp and Northern Bank as if the merger had become effective on
January 1, 1998.

    The merger is accounted for as a purchase. Under this method of accounting,
assets and liabilities of Northern Bank are adjusted to their estimated fair
value and combined with the recorded book values of the assets and liabilities
of Cowlitz Bancorp. Fair value adjustments are subject to update as additional
information becomes available.

2.  Purchase Price: Stock Consideration

    Under the terms of the merger agreement, the purchase price is up to $7.05
per share of Northern Bank stock. The purchase price consists of two components,
the stock consideration and the cash consideration. The stock consideration is
$5.42 per Northern Bank share in the form of a number of shares of common stock
of Cowlitz Bancorp (based on a fixed value for Cowlitz Bancorp stock of $6.563
per share). The stock consideration is subject to reduction based on Northern
Bank's shareholders' equity at the time of closing below $4,718,841. If Northern
Bank's shareholders' equity immediately prior to closing is less than
$4,718,841, the portion of the merger consideration payable in Cowlitz Bancorp
stock will be reduced by an amount equal to 1.75 times the difference between
$4,718,841 and Northern Banks' shareholders' equity immediately prior to
closing. As of September 30, 1999, Northern Bank's proforma shareholders' equity
(as adjusted for estimated closing costs of $158,000) was $4,350,703. The amount
of stock consideration payable per Northern Bank share is reduced to $4.89, or
 .745086 shares of Cowlitz Bancorp common stock.

    Northern Bank's shareholders' equity may be further reduced as a result of,
among other things, provisions for additional loan losses required to be made
under the Merger Agreement following an examination of Northern Bank's loan
portfolio prior to the closing date by an independent loan examiner. Such
reductions, if they occur, will further reduce the stock consideration.

    Additionally, because the maximum amount of the total purchase price is
fixed, the purchase price paid per share may be reduced further if the number of
outstanding shares of Northern Bank common stock at the closing date is greater
than the number of outstanding shares on the date of the merger agreement.
Shares issuable upon exercise of Northern Bank's stock options are not included
in the number of outstanding shares of Northern Bank common stock in the
calculation of the stock consideration component of the purchase price as such
shares were not issued and outstanding as of September 30, 1999. Each option
holder under Northern Bank's stock option plan will have the right to exercise
that option to the extent vested, immediately prior to the closing of the
merger. Issuance of these additional shares of Northern Bank common stock will
reduce the per share stock consideration as additional Northern Bank shares will
become outstanding. Any outstanding Northern Bank options that are not exercised
as of the closing date of the merger will be terminated without the payment of
any merger consideration.

3.  Purchase Price: Cash Consideration

    The cash portion of the merger consideration is equal to $1,997,723, or
$1.63 per share of Northern Bank's common stock.

                                       57
<PAGE>
    As noted in note 2 above, since the maximum amount of total merger
consideration is fixed, the per share consideration may decrease if the number
of outstanding shares of Northern Bank's common stock increases prior to the
closing.

4.  Direct Acquisition Costs of Cowlitz Bancorp

    In addition to the common stock and cash, also included in the purchase
price are Cowlitz Bancorp's other direct acquisition costs, such as legal,
accounting and other professional fees. These costs are preliminarily expected
to be approximately $225,000.

5.  Merger Expenses of Northern Bank

    Northern Bank estimates that it will incur $158,000 in expenses associated
with the merger that are not already reflected in its September 30, 1999
financial statements. This amount has been reflected as an accrued liability and
as a reduction of Northern Bank's net assets in the September 30, 1999 combined
balance sheet.

6.  Allocation Of Purchase Price and Calculation Of Goodwill

    The unaudited pro forma combined financial statements assume the following
with respect to the allocation of the purchase price and determination of
goodwill:

<TABLE>
<S>                                                           <C>
Purchase price:

Stock consideration (913,175 shares of Cowlitz common stock
  issued at a fair market value of $5.875 per share--market
  price of Cowlitz Bancorp common stock on November 10,
  1999).....................................................  $5,364,903
Cash consideration..........................................   1,997,723
Estimated direct costs......................................     225,000
                                                              ----------
Total purchase price........................................  $7,587,626
Estimated fair value of Northern Bank's net assets at
  September 30, 1999........................................   4,350,703
                                                              ----------
Estimated goodwill..........................................  $3,236,923
                                                              ==========
</TABLE>

    For purposes of the pro forma combined balance sheet, estimates have been
made of the fair value of Northern Bank's assets and liabilities as of
September 30, 1999. Fair value adjustments are subject to update as additional
information becomes available.

7.  Goodwill

    The goodwill recorded in connection with the merger will be amortized on an
accelerated basis over a ten-year period.

8.  Northern Bank Shareholders' Equity

    For purposes of the pro forma combined financial statements, Northern Bank's
equity has been eliminated.

9.  Income Taxes

    The additional income tax benefit in the pro forma income statement for the
nine month period ended September 30, 1999 represents Cowlitz Bancorp's
utilization of Northern Bank's pretax loss for that period.

                                       58
<PAGE>
               COMPARISON RIGHTS OF COWLITZ BANCORP SHAREHOLDERS
                         AND NORTHERN BANK SHAREHOLDERS

    Cowlitz Bancorp is incorporated under the laws of the State of Washington
and Northern Bank is incorporated under the laws of the State of Oregon. Upon
completion of the merger, the Northern Bank shareholders, whose rights as
shareholders are currently governed by the Oregon Bank Act (the "OBA"), Northern
Bank's Amended and Restated Articles of Incorporation and Northern Bank's Bylaws
will, upon exchange of their Northern Bank common stock, become holders of
Cowlitz Bancorp common stock and their rights as such will be governed by the
Washington Business Corporation Act (the "WBCA"), Cowlitz Bancorp's Restated
Articles of Incorporation and Cowlitz Bancorp's Bylaws. The material differences
between the rights of holders of Northern Bank common stock and Cowlitz Bancorp
common stock resulting from the differences in their governing documents and the
application of the WBCA or the OBA, are summarized below.

    The following summary is not a complete summary and is qualified in its
entirety by reference to the governing corporate documents of each of Cowlitz
Bancorp and Northern Bank and applicable law.

CAPITAL STOCK

    Cowlitz Bancorp's articles of incorporation currently authorize 25,000,000
shares of common stock and 5,000,000 shares of preferred stock.

    Northern Bank's articles of incorporation currently authorize 10,000,000
shares of common stock and no shares of preferred stock.

BOARD OF DIRECTORS

    Cowlitz Bancorp's articles of incorporation currently provide that Cowlitz
Bancorp's board of directors will consist of five members. The directors are not
divided into classes and each director's term lasts for one year.

    Northern Bank's articles of incorporation provide that Northern Bank's board
of directors will consist of no fewer than five and no more than 15 members and
that the Northern Bank board of directors may increase or decrease the number of
directors within that range. Northern Bank's bylaws currently cap the Northern
Bank board of directors at no more than nine members and currently there are six
members of the Northern Bank board of directors. Northern Bank's bylaws also
require that at least one half of the members of the Northern Bank board of
directors be citizens of the United States, residents of Oregon or of any place
within a 100 miles of Northern Bank's principal offices, and at least one member
must be a Oregon resident.

MONETARY LIABILITY OF DIRECTORS

    Cowlitz Bancorp's articles of incorporation and Northern Bank's articles of
incorporation each provide for the elimination of personal monetary liability of
directors to the fullest extent permissible under the laws of Washington and
Oregon, respectively.

VOTING RIGHTS

    Neither Cowlitz Bancorp's articles of incorporation nor Northern Bank's
articles of incorporation provides for cumulative voting in the election of
directors. Upon completion of the merger, based on the capitalization of Cowlitz
Bancorp and Northern Bank on September 30, 1999, and assuming no adjustments to
the merger consideration, current Cowlitz Bancorp common shareholders will hold
approximately 4,089,570 shares of Cowlitz Bancorp common stock, constituting
approximately 82% of Cowlitz Bancorp's voting power, and former Northern Bank
common shareholders will hold

                                       59
<PAGE>
approximately 913,175 shares of Cowlitz Bancorp common stock, constituting
approximately 18% of Cowlitz Bancorp's voting power.

REMOVAL OF DIRECTORS AND FILLING VACANCIES ON THE BOARD OF DIRECTORS

    Cowlitz Bancorp's articles of incorporation provide that directors may be
removed only "for cause" and only by the affirmative vote of the holders of at
least 75% of the shares entitled to vote on the removal of such director. "For
cause" means either: (a) conviction of a felony by a court of competent
jurisdiction which is no longer subject to direct appeal or (b) adjudication for
gross negligence or dishonest conduct in the performance of a director's duty to
this corporation by a court of competent jurisdiction which is no longer subject
to direct appeal. The applicable provision of Cowlitz Bancorp's articles of
incorporation may be amended only with the approval of two-thirds of the votes
entitled to be cast by each voting group entitled to vote on such amendment.

    Northern Bank's articles of incorporation provide that directors may be
removed by a vote of the holders of a majority of the shares currently entitled
to vote at an election of directors.

                                       60
<PAGE>
        CERTAIN DIFFERENCES BETWEEN WASHINGTON AND OREGON CORPORATE LAWS

    The Washington Business Corporation Act (WBCA) governs the rights of Cowlitz
Bancorp shareholders and will govern the rights of Northern Bank shareholders
who become Cowlitz Bancorp shareholders after the merger. The Oregon Bank Act
(OBA) governs the rights of current Northern Bank shareholders. The WBCA and the
OBA differ in many respects. The following discussion summarizes some
significant differences between the provisions of the WBCA and the OBA that
could materially affect the rights of Northern Bank shareholders.

AMENDMENTS OF ARTICLES OF INCORPORATION

    Under the WBCA, with certain exceptions, amendments to a corporation's
articles of incorporation must be recommended to the shareholders by the board
of directors, unless the board of directors determines that because of a
conflict of interest or other special circumstances it should make no
recommendation and communicates the basis for its determination to the
shareholders with the amendment. All amendments must be approved by a majority
of all the votes entitled to be cast by any voting group entitled to vote
thereon unless another proportion is specified in the articles of incorporation,
by the board of directors as a condition to its recommendation or by provision
of the WBCA.

    Oregon law provides that a bank's board of directors may initiate the
process for amending its articles of incorporation, by first adopting a
resolution setting forth the proposed amendment and directing that it be
submitted to the shareholders. The proposed amendment must then be submitted to
a vote at a meeting of shareholders, and the notice of that meeting must
describe the amendment. The articles of incorporation may be amended if a quorum
exists and the votes cast favoring the amendment amount to a majority of the
total outstanding shares. Where a bank has multiple classes of stock,
shareholders are entitled to vote by class where the proposed amendment would
impact one class of shareholders disproportionately with other classes.
Supermajority voting requirements may be imposed by the articles of
incorporation, or by the board of directors with respect to any proposed
amendment.

RIGHT TO CALL A SPECIAL MEETING OF SHAREHOLDERS

    Under the WBCA, a special meeting of shareholders may be called by the board
of directors, any person authorized by a corporation's articles or bylaws, or by
holders of 10% or more of all the votes entitled to be cast at the special
meeting. The articles of incorporation of a public company, such as Cowlitz
Bancorp, may limit or deny the right shareholders to call special meetings.

    The OBA provision is similar to that of the WBCA, except that the OBA
permits a special meeting to be called by the chief executive officer, a
majority of the board of directors, or any person granted that authority by the
articles of incorporation or bylaws. A group of not fewer than three
shareholders who collectively hold not less than one-third of the outstanding
voting stock of a bank may call a meeting by delivering to the secretary a
notice of their intent to do so. All special meetings must be held in Oregon,
and the articles or bylaws may reserve to the board of directors or an officer
the right to set the time and place of a meeting.

TRANSACTIONS WITH OFFICERS OR DIRECTORS

    The WBCA sets forth a safe harbor for transactions between a corporation and
one or more of its directors. A conflicting interest transaction may not be
enjoined, set aside or give rise to damages if: (a) it is approved by a majority
of qualified directors (but no fewer than two); (b) it is approved by the
affirmative vote of the majority of all qualified shares after notice and
disclosure to the shareholders; or (c) at the time of commitment, the
transaction is established to have been fair to the corporation. For purposes of
this provision, a "qualified director" is one who does not have either: (a) a
conflicting

                                       61
<PAGE>
interest respecting the transaction or (b) a familial, financial, professional
or employment relationship with a second director who does have a conflicting
interest respecting the transaction, which relationship would, in the
circumstances, reasonably be expected to exert an influence on the first
director's judgment when voting on the transaction. "Qualified shares" are
defined generally as shares other than those beneficially owned, or the voting
of which is controlled, by a director (or an affiliate of the director) who has
a conflicting interest respecting the transaction.

    Under the OBA, a conflict of interest transaction is not voidable by a
corporation solely because of a director's interest in the transaction if:
(a) the material facts of the transaction and the director's interest were
disclosed or known to the board of directors or to a committee of the board of
directors and the board or committee authorized, approved or ratified the
transaction, (b) the material facts of the transaction and the director's
interest were disclosed or known to the shareholders entitled to vote and they
authorized, approved or ratified the transaction or (c) the transaction was fair
to the corporation. A conflict of interest transaction is "authorized, approved
or ratified" by the board or a board committee if it receives the affirmative
vote of a majority of directors on the board or on the committee who have no
direct or indirect interest in the transaction. If a majority of the directors
who have no direct or indirect interest in the transaction vote to authorize,
approve, or ratify the transaction, a quorum is deemed present at that board or
board committee meeting for the purpose of taking such action.

LIMITATION OF LIABILITY OF DIRECTORS

    Under the WBCA, a corporation's articles of incorporation may set forth a
provision eliminating or limiting the personal liability of a director to the
corporation or its shareholders for monetary damages for conduct as a director.
However, such provisions may not eliminate or limit a director's liability for:
(a) acts or omissions which involve intentional misconduct or a knowing
violation of the law; (b) the payment of unlawful distributions; or (c) any
transaction from which the director derived an improper personal benefit.

    Similarly, under Oregon Law, a corporation's articles of incorporation may
set forth a provision eliminating or limiting the personal liability of a
director to the corporation or its shareholders for monetary damages for conduct
as a director. However, in addition to exceptions contained in the WBCA, such
provisions may not eliminate or limit a director's liability for breaches of the
director's duty of loyalty to the corporation or its shareholders or acts or
omissions not in good faith.

INDEMNIFICATION OF OFFICERS, DIRECTORS AND EMPLOYEES

    Under the WBCA, if authorized by its articles of incorporation, a bylaw
adopted or ratified by its shareholders, or a resolution adopted or ratified,
before or after the event, by its shareholders, a corporation has the power to
indemnify a director, officer or employee made a party to a proceeding, or
advance or reimburse expenses incurred in a proceeding, under any circumstances,
except that no such indemnification shall be allowed for: (a) acts or omissions
of a director, officer or employee finally adjudged to have engaged in
intentional misconduct or a knowing violation of the law; (b) conduct of a
director, officer or employee finally adjudged to be an unlawful distribution;
or (c) any transaction with respect to which it was finally adjudged that such
director, officer or employee personally received a benefit in money, property
or services to which the director, officer or employee was not legally entitled.
The WBCA's legislative history suggests that a corporation may indemnify its
directors, officers and employees for amounts paid in settlement of derivative
actions, provided that the director's, officer's or employee's conduct does not
fall within one of the categories set forth above. Generally, Cowlitz Bancorp's
bylaws provide that Cowlitz Bancorp shall indemnify its directors, officers,
employees and agents to the fullest extent permitted by the WBCA, including
indemnification of persons seeking to enforce indemnification rights through a
proceeding authorized by Cowlitz Bancorp's board of directors and initiated by
such person.

                                       62
<PAGE>
    Under the OBA, a financial institution may, subject to the limitations
imposed by federal law, indemnify a director against liability incurred if the
conduct was in good faith, the individual reasonably believed the individual's
conduct was in the best interests of the corporation and, in the case of a
criminal proceeding, the individual had no reasonable cause to believe the
conduct was unlawful. The OBA provides for mandatory indemnification of officers
and directors when the indemnified party is wholly successful on the merits or
otherwise in the defense of any proceeding to which the director or officer was
a party because of being a director or officer.

MERGERS, SALES OF ASSETS AND OTHER TRANSACTIONS

    Under the WBCA, a merger, share exchange or dissolution of a corporation
must be approved by the affirmative vote of a majority of directors when a
quorum is present, and by each voting group entitled to vote separately on the
plan by two-thirds of all votes entitled to be cast on the plan by that voting
group, unless another proportion is specified in the articles of incorporation.
The WBCA also provides that, in general, a corporation may sell, lease, exchange
or otherwise dispose of all, or substantially all, of its property, other than
in the usual and regular course of business, or dissolve if the board of
directors recommends the proposed transaction to the shareholders and the
shareholders approve the transaction by two-thirds of all the votes entitled to
be cast, unless another proportion is specified in the articles of
incorporation.

    The OBA merger procedures are similar to those of the WBCA. The notable
difference is that the OBA requires approval of each voting group entitled to
vote separately on the plan by two-thirds of all the outstanding shares, unless
a higher proportion is specified in the articles of incorporation. The same is
true in the case of disposition of all or substantially all of a bank's assets
or deposits.

    The OBA and the WBCA contain nearly identical provisions setting forth
certain circumstances under which no vote by the shareholders of a corporation
surviving a merger is required.

PROVISIONS AFFECTING CONTROL SHARE ACQUISITION AND BUSINESS COMBINATIONS

    The WBCA prohibits a "target corporation," with certain exceptions, from
engaging in certain "significant business transactions" with a person or group
of persons who or which beneficially owns 10% or more of the voting securities
of a target corporation (an "Acquiring Person") for a period of five years after
the acquisition of such securities, unless the transaction or acquisition of
shares is approved by a majority of the members of the target corporation's
board of directors prior to the date of the acquisition. A significant business
transaction includes among other transactions: (a) a merger with or
consolidation with, disposition of assets to or with, or issuance or redemption
of stock to or from, the Acquiring Person, (b) termination of 5% or more of the
employees of the target corporation employed in Washington State as a result of
the Acquiring Person's acquisition of 10% or more of the shares, or
(c) allowing the Acquiring Person to receive any disproportionate benefit as a
shareholder. Target corporations include domestic corporations have a class of
voting securities registered under Section 12 or Section 15 of the Securities
Exchange Act of 1934. Cowlitz Bancorp believes it currently meets these
standards and is subject to the statute. A corporation may not "opt out" of this
statute.

    Unlike the Oregon Business Corporation Act, the OBA contains no provision
similar to the WBCA's takeover statute.

CONSIDERATION OF OTHER CONSTITUENCIES

    The OBA provides that the directors of a corporation, when evaluating any
tender offer or exchange offer made by a third party, a third party's proposal
of merger or consolidation, or a third party's offer to acquire all or
substantially all of the assets of the corporation, may, in determining what
they believe to be in the best interests of the corporation, give due
consideration to the following: (a) the social, legal and economic effects on
employees, customers and suppliers of the corporation and

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on the communities and geographical areas in which the corporation and its
subsidiaries operate, (b) the economy of the state and nation, (c) the long-term
as well as short-term interests of the corporation and its shareholders,
including the possibility that these interests may be best served by the
continued independence of the corporation, and (d) other relevant factors.

    The WBCA does not contain provisions relating to the ability of a board of
directors to consider the impact of constituencies other than shareholders.

DISSENTERS' RIGHTS

    Under the WBCA, a shareholder is entitled to dissent from and, upon
perfection of the shareholder's appraisal right, to obtain the fair value of his
or her shares in the event of certain corporate actions, including certain
mergers, share exchanges, sales of substantially all assets of the corporation,
and certain amendments to the corporation's articles of incorporation that
materially and adversely affect shareholder rights. However, shareholders
generally will not have such dissenters' rights if shareholder approval is not
required to effect the corporate action.

    Under the OBA, shareholders who dissent from a proposed merger are entitled
to dissenters' rights under ORS 711.175 to ORS 711.185. In order to perfect his
or her dissenters' rights, a shareholder must notify the bank at or before the
shareholder meeting that he or she is dissenting as to all shares of the bank he
or she beneficially owns. Within 30 days after the effective date, the surviving
institution must deliver to the dissenters an acknowledgement of their dissent
with a written offer to pay cash for the fair market value of those shares. If a
shareholder notifies the institution that he or she accepts the offer, the
surviving institution must pay the fair market value to the shareholders within
30 days after receiving the acceptance.

    If a shareholder declines the offer, the Oregon Department of Consumer and
Business Services will appoint an appraiser, who will make a final determination
of fair market value. Within 30 days after receiving the appraiser's valuation,
the surviving entity must notify the dissenting shareholders of the valuation.
The costs of appraisal are to be borne equally by the entity and the dissenting
shareholders unless the appraised value differs by more than 15% from the
entity's initial offer to dissenters. If the offer was less than the appraiser's
valuation by more than 15%, the entity would be required to pay the entire cost
of valuation. If the entity's offer was more than the appraiser's valuation by
more than 15%, the dissenting shareholders would bear entire cost of the
valuation on a pro rata basis.

DISSOLUTION

    Under the WBCA a dissolution must be recommended by the board of directors
and approved by two-thirds of all the shares entitled to vote, unless either the
articles of incorporation or the board of directors requires a higher proportion
or the articles of incorporation require a lower proportion (but at least a
majority).

    Under the OBA, a dissolution must be approved by written consent of all
shareholders or the dissolution must be initiated by the board of directors and,
unless the articles of incorporation or the board requires a greater vote or a
vote by voting groups, approved by a simple majority of the votes entitled to be
cast on the proposal for dissolution.

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                  DESCRIPTION OF COWLITZ BANCORP CAPITAL STOCK

    Cowlitz Bancorp's articles of incorporation currently authorize 25,000,000
shares of common stock and 5,000,000 shares of preferred stock, no par value. As
of November 22, 1999, there were issued and outstanding 4,077,052 shares of
Cowlitz Bancorp common stock and no shares of Cowlitz Bancorp preferred stock.
In the merger, Cowlitz Bancorp will issue approximately 1,243,615 shares of
Cowlitz Bancorp common stock to Northern Bank shareholders.

    The following description summarizes the material features of Cowlitz
Bancorp's capital stock. This summary is not complete and is subject in all
respects to the applicable provisions of the WBCA and is qualified in its
entirety by reference to Cowlitz Bancorp's articles of incorporation.

COWLITZ BANCORP COMMON STOCK

    Each holder of Cowlitz Bancorp common stock is entitled to one vote for each
share held on all matters voted upon by shareholders. Shareholders are not
permitted to cumulate their votes for the election of directors.

    In the event of the liquidation, dissolution or distribution of assets of
Cowlitz Bancorp, holders of Cowlitz Bancorp common stock will be entitled to
share ratably in any remaining assets of Cowlitz Bancorp legally available for
distribution to the shareholders after payment of all liabilities and amounts
owed with respect to Cowlitz Bancorp preferred stock.

    Holders of Cowlitz Bancorp common stock are not entitled to preemptive
rights with respect to any additional shares of capital stock that may be
issued.

    The authorized but unissued and unreserved shares of Cowlitz Bancorp common
stock will be available for general corporate purposes, including but not
limited to possible issuance in exchange for capital notes, as stock dividends
or stock splits, in future mergers or acquisitions, under a cash dividend
reinvestment plan, for employee benefit plans, or in a future underwritten or
other public offering. Except as described above or as otherwise required to
approve the transactions in which the additional authorized shares of Cowlitz
Bancorp common stock would be issued, no shareholder approval will be required
for the issuance of these shares.

    At November 22, 1999, options to purchase 464,000 shares of Cowlitz Bancorp
common stock had been granted, but not exercised or terminated. There are 81,000
shares available for further grants under Cowlitz Bancorp's stock option plans.

COWLITZ BANCORP PREFERRED STOCK

    Under Cowlitz Bancorp's articles of incorporation, the Cowlitz Bancorp board
of directors is authorized to provide for the issuance of up to 5,000,000 shares
of preferred stock in one or more series. Cowlitz Bancorp's board of directors
is authorized to establish series; to fix and determine the variations in the
relative rights and preferences as between series and as between holders of the
same series; to amend the relative rights and preferences of any series that is
wholly unissued; and to designate the number of shares of each series and the
designation thereof. The Cowlitz Bancorp board of directors may, after the issue
of shares of a series, amend the resolution establishing the series to decrease
(but not below the number of shares of such series then outstanding) the number
of shares of that series, and the number of shares constituting the decrease
shall resume the status which they had before the adoption of the resolution
establishing the series. The rights and preferences which may be established by
the Cowlitz Bancorp board of directors may include, without limitation:

    - The right to vote, or limitations upon the right to vote, and in the
      absence of any such provision with respect to a particular series no
      shares of that series shall have any right to vote, and no right to vote
      as a class, for any purpose except as may be required by law;

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<PAGE>
    - The right of Cowlitz Bancorp to redeem any of such shares at a price and
      upon terms fixed by the resolution establishing the series, including
      sinking fund provisions, if any;

    - The right to receive dividends including whether any such dividend is
      cumulative, noncumulative, or partially cumulative;

    - Preference over any other class or classes of shares, or over any other
      series of this or any other class or classes of shares, as to the payment
      of dividends;

    - Preference in the assets of the corporation over any other class or
      classes of shares, or over any other series of this or any other class or
      classes of shares, upon the voluntary or involuntary liquidation of
      Cowlitz Bancorp;

    - The right to convert the shares into shares of any other class or into
      shares of any series of the same or any other class, except a class having
      prior or superior rights and preferences as to dividends or distribution
      of assets upon liquidation.

                   DESCRIPTION OF NORTHERN BANK COMMON STOCK

    Northern Bank has a single class of common stock and has not authorized or
issued any class or series of preferred stock. Each Northern Bank shareholder is
entitled to one vote per share on all matters voted upon by shareholders.
Shareholders are not permitted to cumulate their votes for the election of
directors, nor are any preemptive rights available to Northern Bank
shareholders.

    In the event Northern Bank is liquidated, dissolves or distributes its
assets, Northern Bank shareholders will be entitled to share ratably in all
remaining assets of Northern Bank legally available for distribution to the
shareholders after payment of all liabilities.

    Northern Bank is entitled to use authorized but unissued and unreserved
shares of Northern Bank common stock for general corporate purposes, including
without limitation issuance in conversion of debt, as payment for stock
dividends or stock splits, under a cash dividend reinvestment plan, and for
employee benefit plans.

    At November 22, 1999, Northern Bank had outstanding options to purchase
675,121 shares of Northern Bank common stock.

                                 LEGAL MATTERS

    The validity of the shares of Cowlitz Bancorp common stock which will be
issued in connection with the merger and certain legal matters in connection
with the merger will be passed upon for Cowlitz Bancorp by Heller Ehrman
White & McAuliffe.

                                    EXPERTS

    The consolidated financial statements of Cowlitz Bancorp included in this
joint proxy statement and in the Registration Statement to the extent and for
the periods indicated in their report have been audited by Arthur Andersen LLP,
independent public accountants, and are included herein in reliance upon the
authority of said firm as experts in accounting and auditing in giving said
report.

    The consolidated financial statements of Northern Bank included in this
joint proxy statement and in the Registration Statement have been audited by
Moss Adams LLP, independent public accountants, to the extent and for the
periods indicated in their report, and are included herein in reliance upon the
authority of said firm as experts in accounting and auditing in giving said
report.

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<PAGE>
                      WHERE YOU CAN FIND MORE INFORMATION

    Cowlitz Bancorp files annual, quarterly and special reports, proxy
statements and other information with the Securities and Exchange Commission.
You may read and copy these reports and other information at the public
reference facilities maintained by the SEC at:

Judiciary Plaza
Room 1024
450 Fifth Street, N.W.
Washington, D.C. 20549

Citicorp Center
500 West Madison Street
Suite 1400
Chicago, Illinois 60661-2511

Seven World Trade Center
13th Floor
New York, New York 10048

    You may also obtain copies of these documents by mail from the public
reference room of the SEC at Judiciary Plaza, 450 Fifth Street, N.W.,
Washington, D.C. 20549, at prescribed rates. Please call the SEC at
1-800-SEC-0330 for further information on the public reference rooms. In
addition, Cowlitz Bancorp files reports and other information with the SEC
electronically, and the SEC maintains a web site located at http://www.sec.gov
containing this information.

    Northern Bank files annual, quarterly and special reports, proxy statements
and other information with the Federal Deposit Insurance Corporation. You may
read and copy these reports and other information at the offices of the FDIC
located at 7176 7th Street NW, Room 7-643, Washington, D.C. 20006. You also may
obtain copies of these documents from Northern Bank's Investor Relations
Manager, Michelle Luchs, by calling (503) 222-9164.

    Cowlitz Bancorp's common stock is quoted on The Nasdaq National Market, and
Northern Bank's common stock is quoted on The Nasdaq Small Cap Market. You may
obtain copies of Cowlitz Bancorp's and Northern Bank's reports and other
information at the offices of Nasdaq Operations, 1735 K Street, N.W.,
Washington, D.C. 20006.

    Cowlitz Bancorp has filed a registration statement on Form S-4 to register
with the SEC up to 1,243,615 shares of Cowlitz Bancorp common stock that may be
issued in the merger. This joint proxy statement is a part of that registration
statement. As permitted by the SEC rules, this joint proxy statement does not
contain all of the information included in the registration statement or in the
exhibits or schedules to the registration statement. You may read and copy the
registration statement, including any amendments, schedules and exhibits at the
addresses set forth above. Statements contained in this joint proxy statement as
to the contents of any contract or other document referred to in this document
include all material terms of the contracts or other documents but are not
necessarily complete. In each case, you should refer to the copy of the
applicable contract or other document filed as an exhibit to the registration
statement.

                             SHAREHOLDER PROPOSALS

    Cowlitz Bancorp must receive a shareholder proposal by December 15, 1999 to
consider it for inclusion in Cowlitz Bancorp's proxy statement and form of proxy
relating to the Cowlitz Bancorp's Annual Meeting of Shareholders in 2000. In
addition, if Cowlitz Bancorp is not notified prior to February 28, 2000 that a
shareholder intends to present a proposal at the Annual Meeting in 2000, Cowlitz
Bancorp's management will have discretionary authority with respect to each
proxy received by it to vote on such matter. Cowlitz Bancorp's address for these
purposes is P.O. Box 1518, Longview, Washington 98632.

    Any Northern Bank shareholder who wishes to submit a proposal for
presentation to the 2000 Annual Meeting of Shareholders must have submited the
proposal to Northern Bank at 1001 S.W. Fifth Avenue, Suite 250, Portland, Oregon
97204, not later than December 1, 1999, for inclusion, if appropriate, in
Northern Bank's proxy statement and the form of proxy relating to the 2000
Annual Meeting, which meeting will be held only if the merger is not completed
prior to the planned date of the annual meeting.

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                                   APPENDIX A
                 INFORMATION CONCERNING COWLITZ BANCORPORATION

GENERAL

    Cowlitz Bancorporation was organized in 1991 under Washington law to become
the holding company for Cowlitz Bank, a Washington state chartered bank that
commenced operations in 1978. The principal executive offices of Cowlitz are
located in Longview, Washington.

    Cowlitz offers or makes available a broad range of financial services to its
customers, primarily small and medium-sized businesses, professionals and retail
customers. Cowlitz Bank's commercial and personal banking services include
commercial and real estate lending, consumer lending, mortgage origination and
trust services. Cowlitz Bank has also developed relationships with a securities
brokerage firm and insurance agency with an estate planner to provide its
customers access to a variety of financial services which are generally not
available in community banks. During 1998, Cowlitz acquired Business Finance
Corporation which provides asset-based lending services to companies throughout
the western United States.

    Cowlitz' goal is to continue to expand its position as a leading community
based provider of financial services in Cowlitz County and to become one of the
leading community based providers of financial services in other selected areas
of Washington and Oregon. In accordance with this strategy, during 1999 Cowlitz
commenced operations in the Seattle, Washington area through the acquisition of
Bay Mortgage of Bellevue, Washington, Bay Mortgage of Seattle, Washington, and
Bay Escrow of Seattle, Washington. Cowlitz has also started a new branch of
Cowlitz Bank, operating as Bay Bank, in Bellevue, Washington. Cowlitz' growth
strategy is based on providing both exceptional personal service and a wide
range of financial services to its customers including: emphasizing personal
service and developing strong community ties, providing a broad range of
financial products and services, increasing business volume in existing markets,
and continuing to explore opportunities for regional expansion through
acquisitions.

PRODUCTS AND SERVICES

    Cowlitz offers a broad portfolio of products and services tailored to meet
the financial needs of targeted customers in its market areas. It believes this
portfolio is generally competitive with the products and services of its
competitors, including major regional and national banks. These products and
services include:

    DEPOSIT PRODUCTS.  Cowlitz provides a range of deposit products for
customers, including non-interest-bearing checking accounts, interest-bearing
checking and savings accounts, money market accounts and certificates of
deposit. These accounts generally earn interest at rates established by
management based on competitive market factors and management's desire to
increase certain types or maturities of deposit liabilities. Cowlitz does not
pay brokerage commissions to attract deposits. It strives to establish customer
relations to attract core deposits in non-interest-bearing transactional
accounts and thus to reduce its cost of funds.

    LOAN PRODUCTS.  Cowlitz offers a broad range of loan products to its retail
and business customers. Cowlitz maintains sound loan underwriting standards with
written loan policies, conservative individual and branch limits and reviews by
the loan committee. Further, in the case of particularly large loan commitments
or loan participations, loans are reviewed by Cowlitz' board of directors.
Underwriting standards are designed to achieve a high-quality loan portfolio,
compliance with lending regulations and the desired mix of loan maturities and
industry concentrations. Management seeks to minimize credit losses by closely
monitoring the financial condition of its borrowers and the value of collateral.

                                      A-1
<PAGE>
    COMMERCIAL LOANS.  Cowlitz offers specialized loans for its business and
commercial customers. These include equipment and inventory financing, operating
lines of credit and accounts receivable financing. Commercial lending is the
primary focus of Cowlitz' lending activities, and a significant portion of its
loan portfolio consists of commercial loans. For regulatory purposes, a
substantial portion of Cowlitz' commercial loans are designated as real estate
loans, as the loans are secured by mortgages and trust deeds on real property,
although the loans may be made for purposes of financing commercial activities,
such as accounts receivable, equipment purchases and inventory or other working
capital needs. Lending decisions are based on careful evaluation of the
financial strength, management and credit history of the borrower, and the
quality of the collateral securing the loan. Commercial loans secured by real
property are generally limited to 70% of the value of the collateral. In some
cases, Cowlitz may require personal guarantees and secondary sources of
repayment. Cowlitz also offers asset-based lending through its subsidiary
Business Finance Corporation. These loans tend to have higher credit risk, but
provide a higher rate of return than Cowlitz' normal commercial loans.

    REAL ESTATE LOANS.  Real estate loans are available for construction,
purchasing and refinancing residential owner-occupied and rental properties.
Borrowers can choose from a variety of fixed and adjustable rate options and
terms. Real estate loans reflected in the loan portfolio also include loans made
to commercial customers that are secured by real property.

    Cowlitz provides customers access to long-term conventional real estate
loans through Cowlitz Bank's Cowlitz Mortgage and Bay Mortgage divisions. These
divisions specialize in all facets of residential lending from single family
homes to small multi-plexes, including FHA and VA loans, construction and bridge
loans.

    Payments on loans are often dependent on the successful operation and
management of the properties securing the loans, and are therefore strongly
affected by the conditions of the local real estate market. Fluctuating land
values and local economic conditions make loans secured by real property
difficult to evaluate and monitor.

    CONSUMER LOANS.  Cowlitz provides loans to individual borrowers for a
variety of purposes, including secured and unsecured personal loans, home
equity, personal lines of credit and motor vehicle loans. Consumer loans can
carry significantly greater risks than other loan products, even if secured, if
the collateral consists of rapidly depreciating assets such as automobiles and
equipment. Repossessed collateral securing a defaulted consumer loan may not
provide an adequate source of repayment of the loan. Consumer loan collections
are dependent on borrowers' continuing financial stability, and are sensitive to
job loss, illness and other personal factors. Cowlitz attempts to manage the
risks inherent in consumer lending by following strict credit guidelines and
conservative underwriting practices. Cowlitz also offers Visa and MasterCard
credit cards to its customers.

    OTHER BANKING PRODUCTS AND SERVICES.  In support of its focus on
personalized service, Cowlitz offers additional products and services for the
convenience of its customers. These services include a debit card program,
automated teller machines located at branch locations and an automated telephone
banking service with 24-hour access to accounts. Cowlitz does not currently
charge fees for any of these services. Cowlitz provides drive-through facilities
at four of its branches.

    TRUST SERVICES.  Cowlitz has established a trust department, which is the
only Trust Department located in Cowlitz County. The trust department provides
trust services to individuals, partnerships, corporations and institutions and
acts as a fiduciary of estates and conservatorships and as a trustee under
various wills, trusts and other plans. Cowlitz believes this service has
attracted additional customers to Cowlitz Bank, and helps provide local access
to these services which were previously sought at out of area financial
institutions.

                                      A-2
<PAGE>
OTHER FINANCIAL SERVICES

    Cowlitz believes that providing its customers a full range of financial
services is an important element of its strategy to attract and retain
customers. To this end, Cowlitz has entered into arrangements with Raymond James
Financial Services, Inc., a securities broker, and Commerce Business & Estate
Services, Inc., an insurance agency. Each of these organizations maintains an
office on the main floor of the Cowlitz Financial Center, where Cowlitz'
headquarters are located and has access to space in Cowlitz' other branches.
Representatives of these companies meet with clients at each of Cowlitz Bank's
Cowlitz County branches, thereby making their services available to all of the
these customers. Cowlitz has no financial interest in either of these companies.
Cowlitz believes that by making available through these relationships, brokerage
and insurance and estate planning services, it can increase foot traffic through
its branches and market more extensively its full line of core banking products
and services.

RECENT ACQUISITIONS

    On July 1, 1999, Cowlitz acquired Bay Mortgage, of Bellevue, Washington. The
acquisition was accounted for using the purchase method, including a cash
payment of $1 million and issuance of common stock with a value of $977,000.
Remaining payments of approximately $1.26 million in cash and common stock may
be issued under the terms of a three-year performance earn-out agreement. Bay
Mortgage specializes in all facets of residential lending from single family
homes to small multi-plexes, including FHA and VA loans, construction loans and
bridge loans. Bay Mortgage will operate as a division of Cowlitz Bank and serves
customers throughout the greater Bellevue/Seattle market area.

    On August 1, 1999, Cowlitz acquired Bay Mortgage, of Seattle, Washington.
The acquisition was accounted for using the purchase method, including a cash
payment of $675,000. Remaining payments of approximately $180,000 in cash may be
paid under the terms of a three-year performance earn-out agreement. Bay
Mortgage of Seattle and Bay Mortgage of Bellevue will join together as a
division of Cowlitz Bank and serve customers throughout the greater
Bellevue/Seattle market area.

    On September 1, 1999, Cowlitz acquired Bay Escrow, of Seattle, Washington.
The acquisition was accounted for using the purchase method, including a cash
payment of $125,000. Bay escrow will operate as a separate division of Cowlitz
Bank and will complete escrow transactions for Bay Mortgage.

MARKET AREA

    Cowlitz' primary market area from which it accepts deposits and makes loans
is Cowlitz County, Washington, and the surrounding counties in Washington and
Oregon. With Cowlitz' acquisitions in the third quarter of 1999 it has expanded
its market area to include Bellevue and the greater Puget Sound areas. As a
community oriented bank, Cowlitz Bank has certain competitive advantages due to
its local focus, but is also more closely tied to the local economy than many of
its competitors, which serve a large number of geographic markets. Business
Finance Corporation provides assets-based lending services throughout the
western United States.

EMPLOYEES

    As of September 30, 1999, Cowlitz employed a total of 162 full-time
equivalent employees. None of the employees are subject to a collective
bargaining agreement and Cowlitz considers its relationships with its employees
to be favorable.

COMPETITION

    Competition in the banking industry for deposits and loans has intensified
with decreased interest rates over the last few years. Furthermore, competition
from outside the traditional banking system

                                      A-3
<PAGE>
from credit unions, investment banking firms, insurance companies and related
industries offering bank-like products has increased the competition for
deposits and loans.

    The banking industry in the market area is generally characterized by well
established branches of large banks with headquarters located out of the market
area and in many cases, out of the state. These large multi-bank holding company
branches have transferred a number of their banking functions outside the local
area. There are also thrift institutions, including branches of the country's
largest thrift institution, and credit unions within the market area that are
very competitive in the deposit and consumer lending areas.

    The major competition for commercial banking services in Cowlitz County
comes from U.S. Bank, Key Bank, Bank of America and Columbia State Bank. None of
these competitors are headquartered in Cowlitz County and many have relocated
key functions (e.g., loan decisions) into regional offices outside of the area.
Its local decision making and strong community ties have allowed Cowlitz to
provide a level of personal service and direct customer contact that management
believes is superior to that provided by other banks.

    The offices of the major financial institutions have competitive advantages
over Cowlitz in that they have high public visibility, may offer a wider variety
of products and are able to maintain advertising and marketing activities on a
much larger scale than Cowlitz can economically maintain. Since single borrower
lending limits imposed by law are dependent on the capital of the institution,
the branches of larger institutions with substantial capital bases also have an
advantage with respect to loan applications which are in excess of Cowlitz'
legal lending limits.

    In competing for deposits, Cowlitz is subject to certain limitations not
applicable to nonbank financial institution competitors. Previous laws limiting
the deposit instruments and lending activities of savings and loan associations
have been substantially eliminated, thus increasing the competition from these
institutions.

REGULATION AND SUPERVISION

    Cowlitz and Cowlitz Bank are subject to extensive regulation under federal
and state laws. The laws, together with the regulations promulgated under them,
significantly affect respective activities of Cowlitz and Cowlitz Bank and the
competitive environment in which they operate. The laws and regulations are
primarily intended to protect depositors and the deposit insurance fund, rather
than shareholders.

    The description herein of the laws and regulations applicable to Cowlitz and
Cowlitz Bank, does not purport to be a complete description of the laws and
regulations mentioned herein or of all such laws and regulations. Any change in
applicable laws or regulations may have a material effect on the business and
prospects of Cowlitz and Cowlitz Bank. The operations of Cowlitz and Cowlitz
Bank may be affected by legislative and regulatory changes as well as by changes
in the policies of various regulatory authorities. Cowlitz cannot accurately
predict the nature or the extent of the effects that such changes may have in
the future on its business and earnings.

    BANK HOLDING COMPANY REGULATION.  Cowlitz is a bank holding company within
the meaning of the Bank Holding Company Act of 1956, as amended ("BHCA") and, as
such, is subject to the regulations of the Federal Reserve. Bank holding
companies are required to file periodic reports with and are subject to periodic
examination by the Federal Reserve. The Federal Reserve has issued regulations
under the BHCA requiring a bank holding company to serve as a source of
financial and managerial strength to its subsidiary banks. It is the policy of
the Federal Reserve that, pursuant to this requirement, a bank holding company
should stand ready to use its resources to provide adequate capital funds to its
subsidiary banks during periods of financial stress or adversity. Additionally,
under the Federal Deposit Insurance Corporation Improvement Act of 1991
("FDICIA"), a bank holding

                                      A-4
<PAGE>
company is required to guarantee the compliance of any insured depository
institution subsidiary that may become "undercapitalized" (as defined in the
statute) with the terms of any capital restoration plan filed by such subsidiary
with its appropriate federal banking agency up to the lesser of (i) an amount
equal to 5% of the institution's total assets at the time the institution became
undercapitalized, or (ii) the amount that is necessary (or would have been
necessary) to bring the institution into compliance with all applicable capital
standards as of the time the institution fails to comply with such capital
restoration plan. Under the BHCA, the Federal Reserve has the authority to
require a bank holding company to terminate any activity or relinquish control
of a nonbank subsidiary (other than a nonbank subsidiary of a bank) upon the
Federal Reserve's determination that such activity or control constitutes a
serious risk to the financial soundness and stability of any bank subsidiary of
the bank holding company.

    Cowlitz is prohibited by the BHCA from acquiring direct or indirect control
of more than 5% of the outstanding shares of any class of voting stock or
substantially all of the assets of any bank or merging or consolidating with
another bank holding company without prior approval of the Federal Reserve.
Additionally, Cowlitz is prohibited by the BHCA from engaging in or from
acquiring ownership or control of more than 5% of the outstanding shares of any
class of voting stock of any company engaged in a non-banking business unless
such business is determined by the Federal Reserve to be so closely related to
banking as to be a proper incident thereto.

    CAPITAL ADEQUACY GUIDELINES FOR BANK HOLDING COMPANIES.  The Federal Reserve
is the federal regulatory and examining authority for bank holding companies.
The Federal Reserve has adopted capital adequacy guidelines for bank holding
companies. These guidelines are similar to, although not identical with, the
guidelines applicable to banks. See "Bank Capital Requirements." At
September 30, 1999, Cowlitz' Tier 1 leverage capital ratio was 16.00%, its Tier
1 risk-based capital ratio was 19.62% and its total risk-based capital ratio was
20.87%.

    BANK REGULATION.  Cowlitz Bank is organized under the laws of the State of
Washington and is subject to the supervision of the Department of Financial
Institutions ("DFI"), whose examiners conduct periodic examinations of state
banks. Cowlitz Bank is not a member of the Federal Reserve System, so its
principal federal regulator is the FDIC, which also conducts periodic
examinations of Cowlitz Bank. Cowlitz Bank's deposits are insured, to the
maximum extent permitted by law, by the Bank Insurance Fund ("BIF") administered
by the FDIC and are subject to the FDIC's rules and regulations respecting the
insurance of deposits. See "Deposit Insurance."

    Both federal and state laws extensively regulate various aspects of the
banking business such as reserve requirements, truth-in-lending and
truth-in-savings disclosures, equal credit opportunity, fair credit reporting,
trading in securities and other aspects of banking operations. Current federal
law also requires banks, among other things, to make deposited funds available
within specified time periods.

    Insured state-chartered banks are generally prohibited under FDICIA from
engaging as principal in activities that are not permitted for national banks,
unless (i) the FDIC determines that the activity would pose no significant risk
to the appropriate deposit insurance fund, and (ii) the bank is, and continues
to be, in compliance with all applicable capital standards. Cowlitz does not
believe that these restrictions will have a material adverse effect on its
current operations.

    BANK CAPITAL REQUIREMENTS.  The FDIC has adopted risk-based capital ratio
guidelines to which Cowlitz Bank is subject. The guidelines establish a
systematic analytical framework that makes regulatory capital requirements more
sensitive to differences in risk profiles among banking organizations.
Risk-based capital ratios are determined by allocating assets and specified
off-balance sheet commitments to four risk weighted categories, with higher
levels of capital being required for the categories perceived as representing
greater risk.

                                      A-5
<PAGE>
    These guidelines divide a bank's capital into two tiers. Tier 1 includes
common equity, certain noncumulative perpetual preferred stock (excluding
auction rate issues) and minority interest in equity accounts of consolidated
subsidiaries, less goodwill and certain other intangible assets (except mortgage
servicing rights and purchased credit card relationships, subject to certain
limitations). Supplementary (Tier 2) capital includes, among other items,
cumulative perpetual and long-term, limited-life, preferred stock, mandatory
convertible securities, certain hybrid capital instruments, term-subordinated
debt and the allowance for loan and lease losses, subject to certain
limitations, less required deductions. Banks are required to maintain a total
risk-based capital ratio of 8%, of which 4% must be Tier 1 capital. The FDIC
may, however, set higher capital requirements when a bank's particular
circumstances warrant. Banks experiencing or anticipating significant growth are
expected to maintain capital ratios, including tangible capital positions, well
above the minimum levels.

    In addition, the FDIC has established guidelines prescribing a minimum Tier
1 leverage ratio (Tier 1 capital to adjusted total assets as specified in the
guidelines). These guidelines provide for a minimum Tier 1 leverage ratio of 3%
for banks that meet certain specified criteria, including that they have the
highest regulatory rating and are not experiencing or anticipating significant
growth. All other banks are required to maintain a Tier 1 leverage ratio of 3%
plus an additional cushion of at least 100 to 200 basis points.

    Certain regulatory capital ratios for Cowlitz and Cowlitz Bank at
September 30, 1999 are set forth below:

<TABLE>
<CAPTION>
                                                              COMPANY      BANK
                                                              --------   --------
<S>                                                           <C>        <C>
Tier 1 Capital to Risk-Weighted Assets......................   19.62%     11.75%
Total-Risk Based Capital to Risk-Weighted Assets............   20.87%     13.00%
Tier 1 Leverage Ratio.......................................   16.00%      9.53%
</TABLE>

    DIVIDENDS.  The principal source of Cowlitz' cash revenues is dividends from
Cowlitz Bank. Under Washington law, Cowlitz Bank may not pay dividends in an
amount greater than its retained earnings as determined by generally accepted
accounting principles. In addition, the DFI has the authority to require a
state-chartered bank to suspend payment of dividends. The FDIC has the authority
to prohibit a bank from paying dividends if, in its opinion, the payment of
dividends would constitute an unsafe or unsound practice in light of the
financial condition of the bank or if it would cause a bank to become
undercapitalized.

    LENDING LIMITS.  Under Washington law, the total loans and extensions of
credit by a Washington-chartered bank to a borrower outstanding at one time may
not exceed 20% of such bank's capital and surplus. However, this limitation does
not apply to loans or extensions of credit which are fully secured by readily
marketable collateral having market value of at least 115% of the amount of the
loan or the extension of credit at all times.

    BRANCHES AND AFFILIATES.  Establishment of bank branches is subject to
approval of the DFI and FDIC and geographic limits established by state laws.
Washington's branch banking law permits a bank having its principal place of
business in the State of Washington to establish branch offices in any county in
Washington without geographic restrictions. A bank may also merge with any
national or state chartered bank located anywhere in the State of Washington
without geographic restrictions.

    Under Oregon law, an out-of-state bank or bank holding company may merge
with or acquire an Oregon state chartered bank or bank holding company if the
Oregon bank, or in the case of a bank holding company, the subsidiary bank, has
been in existence for a minimum of three years, and the law of the state in
which the acquiring bank is located permits such merger. Branches may not be
acquired or opened separately, but once an out-of-state bank has acquired
branches in Oregon, either through a

                                      A-6
<PAGE>
merger with or acquisition of substantially all of the assets of an Oregon bank,
the bank may open additional branches.

    The Bank is subject to Sections 22 (h), 23A and 23B of the Federal Reserve
Act, which restrict financial transactions between banks and affiliated
companies. The statute limits credit transactions between a bank and its
executive officers and its affiliates, prescribes terms and conditions for bank
affiliate transactions deemed to be consistent with safe and sound banking
practices, and restricts the types of collateral security permitted in
connection with a bank's extension of credit to an affiliate.

    FDICIA.  FDICIA requires, among other things, federal bank regulatory
authorities to take "prompt corrective action" with respect to banks which do
not meet minimum capital requirements. For these purposes, FDICIA establishes
five capital tiers: well capitalized, adequately capitalized, undercapitalized,
significantly undercapitalized, and critically undercapitalized.

    The FDIC has adopted regulations to implement the prompt corrective action
provisions of FDICIA. Among other things, the regulations define the relevant
capital measures for the five capital categories. An institution is deemed to be
"well capitalized" if it has a total, risk-based capital ratio of 10% or
greater, a Tier 1 risk-based capital ratio of 6% or greater, and a leverage
ratio of 5% or greater, and is not subject to a regulatory order, agreement or
directive to meet and maintain a specific capital level for any capital measure.
Cowlitz Bank currently exceeds all of the ratios.

    FDICIA further directs that each federal banking agency prescribe standards
for depository institutions and depository institutions holding companies
relating to internal controls, information systems, internal audit systems, loan
documentation, credit underwriting, interest rate exposure, asset growth,
management compensation, a maximum ratio of classified assets to capital,
minimum earnings sufficient to absorb losses, a minimum ratio of market value to
book value of publicly traded shares and such other standards as the agency
deems appropriate.

    DEPOSIT INSURANCE.  Cowlitz Bank's deposits are insured up to $100,000 per
insured account by the BIF. As an institution whose deposits are insured by BIF,
Cowlitz Bank is required to pay deposit insurance premiums to BIF.

    FDICIA required the FDIC to issue regulations establishing a system for
setting deposit insurance premiums based upon the risks a particular bank or
savings association poses to the deposit insurance funds. This system bases an
institution's risk category partly upon whether the institution is well
capitalized, adequately capitalized or less than adequately capitalized. Each
insured depository institution is also assigned to one of three "supervisory"
categories based on reviews by regulators, statistical analysis of financial
statements and other relevant information. An institution's assessment rate
depends upon the capital category and supervisory category to which it is
assigned. Annual assessment rates currently range from $.03 per $100 of domestic
deposits for the highest rated institution to $0.27 per $100 of domestic
deposits for an institution in the lowest category. Cowlitz Bank is currently in
the class of the highest rated institutions and, accordingly, pays the minimum
assessment for deposit insurance. Under legislation enacted in 1996 to
recapitalize the Savings Association Insurance Fund, the FDIC is authorized to
collect assessments against insured deposits to be paid to the Financing
Corporation ("FICO") to service FICO debt incurred in the 1980's. The current
FICO assessment rate for BIF insured deposits is 1.220 cents per $100 of
deposits per year. Any increase in deposit insurance of FICO assessments could
have an adverse effect on Cowlitz Bank's earnings.

    COMMUNITY REINVESTMENT ACT.  The Community Reinvestment Act ("CRA") requires
financial institutions regulated by the federal financial supervisory agencies
to ascertain and help meet the credit needs of their delineated communities,
including low-income and moderate-income neighborhoods within those communities,
while maintaining safe and sound banking practices. The regulatory agency
assigns one of four possible ratings to an institution's CRA performance and is
required to make public

                                      A-7
<PAGE>
an institution's rating and written evaluation. The four possible ratings are
"outstanding," satisfactory," "needs to improve" and "substantial
noncompliance."

    Under new regulations that apply to CRA performance ratings after July 1,
1997, many factors play a role in assessing a financial institution's CRA
performance. The institution's regulator must consider its financial capacity
and size, legal impediments, local economic conditions and demographics and the
competitive environment in which it operates. The evaluation does not rely on
absolute standards and financial institutions are not required to perform
specific activities or to provide specific amounts or types of credit.

    Cowlitz' most recent rating under CRA is "outstanding." This rating reflects
Cowlitz' commitment to meeting the credit needs of the communities it serves. No
assurance can be given, however, that Cowlitz will be able to maintain an
"outstanding" rating under the new regulations in the future.

    ADDITIONAL MATTERS.  In addition to the matters discussed above, Cowlitz and
Cowlitz Bank are subject to additional regulation of their activities, including
a variety of consumer protection regulations affecting their lending, deposit
and collection activities and regulations affecting secondary mortgage market
activities.

    The earnings of financial institutions, including Cowlitz and Cowlitz Bank,
are also affected by general economic conditions and prevailing interest rates,
both domestic and foreign and by the monetary and fiscal policies of the U.S.
Government and its various agencies, particularly the Federal Reserve.

    Additional legislation and administrative actions affecting the banking
industry may be considered by the United States Congress, the Washington
Legislature and various regulatory agencies, including those referred to above.
It cannot be predicted with certainty whether such legislation or administrative
action will be enacted or the extent to which the banking industry in general or
Cowlitz and Cowlitz Bank in particular would be affected thereby.

                                      A-8
<PAGE>
SUMMARY FINANCIAL DATA OF COWLITZ

    Cowlitz is providing the following information to aid you in your analysis
of the financial aspects of the merger. Cowlitz derived the information for the
years ended, and as of, December 31, 1994 through December 31, 1998 from its
historical audited financial statements for these fiscal years. Cowlitz derived
the financial information for the nine months ended September 30, 1998 and
September 30, 1999, and as of September 30, 1999, from its unaudited financial
statements that include, in the opinion of management, all normal and recurring
adjustments that management considers necessary for a fair statement of the
results. The operating results for the nine months ended September 30, 1999 are
not necessarily indicative of the results that may be expected for the year
ending December 31, 1999. This information is only a summary and you should read
it in conjunction with Cowlitz' consolidated financial statements and related
notes contained in Appendix A to this joint proxy statement.

<TABLE>
<CAPTION>
                                                NINE MONTHS ENDED
                                                  SEPTEMBER 30,                        YEAR ENDED DECEMBER 31,
                                              ---------------------   ---------------------------------------------------------
                                                1999        1998        1998        1997        1996        1995        1994
                                              ---------   ---------   ---------   ---------   ---------   ---------   ---------
                                                              (DOLLARS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
<S>                                           <C>         <C>         <C>         <C>         <C>         <C>         <C>
Interest income............................   $  12,446   $  12,074   $  16,366   $  15,086   $  13,633   $  10,644   $   7,492
Interest expense...........................       4,190       4,954       6,501       6,943       6,174       4,548       2,841
                                              ---------   ---------   ---------   ---------   ---------   ---------   ---------
Net interest income........................       8,256       7,120       9,865       8,143       7,459       6,096       4,651
Provision for loan losses..................       1,065         243         509         375         281         694         533
Noninterest income.........................       1,200         734         978         749         296         877         287
Noninterest expense........................       7,499       5,034       6,927       5,284       3,682       3,093       2,363
                                              ---------   ---------   ---------   ---------   ---------   ---------   ---------
Income before income taxes, extraordinary
  items, cumulative effect of accounting
  changes, and minority interest...........         892       2,577       3,407       3,233       3,792       3,186       2,042
Income taxes...............................         341         876       1,181       1,109       1,295       1,088         697
                                              ---------   ---------   ---------   ---------   ---------   ---------   ---------
Net income.................................   $     551   $   1,701   $   2,226   $   2,124   $   2,497   $   2,098   $   1,345
Basic earnings per share...................   $    0.14   $    0.47   $    0.60   $    0.82   $    0.97   $    0.83   $    0.78
Diluted earnings per share.................   $    0.13   $    0.44   $    0.57   $    0.78   $    0.97   $    0.83   $    0.78
Average number of shares used to calculate
  earnings per share:
  Basic....................................   4,046,872   3,619,488   3,715,901   2,601,650   2,586,711   2,514,769   1,723,733
  Diluted..................................   4,104,249   3,822,607   3,894,095   2,711,512   2,586,711   2,514,769   1,723,733
</TABLE>

<TABLE>
<CAPTION>
                                                                                       DECEMBER 31,
                                                  SEPTEMBER 30,    ----------------------------------------------------
                                                       1999          1998       1997       1996       1995       1994
                                                  --------------   --------   --------   --------   --------   --------
                                                            (DOLLARS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
<S>                                               <C>              <C>        <C>        <C>        <C>        <C>
Assets..........................................     $182,746      $178,345   $173,293   $159,157   $131,348   $94,728
Investment securities...........................     $ 13,026      $ 11,530   $  8,481   $  5,391   $  3,263   $ 3,565
Loans, net......................................     $138,539      $130,232   $129,993   $124,657   $105,900   $75,564
Deposits........................................     $122,860      $122,361   $136,209   $123,297   $106,371   $81,083
Borrowings......................................     $ 26,927      $ 24,074   $ 22,625   $ 23,392   $ 15,018   $ 8,161
Shareholders' equity............................     $ 31,839      $ 30,920   $ 13,887   $ 11,813   $  9,391   $ 5,182
</TABLE>

<TABLE>
<CAPTION>
                                          NINE MONTHS
                                             ENDED
                                         SEPTEMBER 30,                               YEAR ENDED DECEMBER 31,
                                     ----------------------      ----------------------------------------------------------------
                                       1999          1998          1998          1997          1996          1995          1994
                                     --------      --------      --------      --------      --------      --------      --------
<S>                                  <C>           <C>           <C>           <C>           <C>           <C>           <C>
OTHER FINANCIAL DATA
Return on average assets.......         .43%         1.26%         1.24%         1.28%         1.75%         1.90%         1.57%
Return on average shareholders'
  equity.......................        2.35%         8.94%         8.34%        16.65%        23.93%        26.06%        30.21%
Cash dividends:
  Dividend payout ratio per
    common share...............       38.46%         9.09%        10.53%         6.41%         4.12%         3.61%         3.85%
</TABLE>

<TABLE>
<CAPTION>
                                                                                                 DECEMBER 31,
                                                            SEPTEMBER 30,    ----------------------------------------------------
                                                                 1999          1998       1997       1996       1995       1994
                                                            --------------   --------   --------   --------   --------   --------
<S>                                                         <C>              <C>        <C>        <C>        <C>        <C>
Total shareholders' equity as a percentage of total
  assets..................................................      17.42%        17.34%       8.01%      7.42%      7.15%      5.47%
Nonperforming assets as a percentage of total assets......       1.67%         1.86%       1.39%       .36%       .25%       .22%
Allowance for loan losses as a percentage of:
  Nonaccrual loans........................................      69.73%        66.28%     103.85%    465.36%    743.88%    643.58%
  Nonperforming assets....................................      68.48%        54.66%      81.51%    328.82%    540.80%    548.57%
</TABLE>

                                      A-9
<PAGE>
MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF
  OPERATIONS

    The following Management's Discussion and Analysis of Financial Condition
and Results of Operations includes a discussion of certain significant business
trends and uncertainties as well as other forward-looking statements and is
intended to be read in conjunction with and is qualified in its entirety by
reference to the consolidated financial statements of Cowlitz and accompanying
notes included elsewhere in this joint proxy statement. For a discussion of
important factors that could cause actual results to differ materially from such
forward-looking statements, see "Risk Factors" above.

OVERVIEW

    Cowlitz has recently undertaken significant business changes to strengthen
its position as a leading provider of financial services in Cowlitz County and
to expand its services throughout western Washington. Beginning in
November 1996, Cowlitz expanded its operating base by opening a branch in Kelso,
Washington. In July 1997, Cowlitz acquired three Wells Fargo Bank branches,
located in Castle Rock, Kalama, and Longview, Washington. In this acquisition,
Cowlitz acquired branch sites, retained the existing employees and assumed
approximately $25.2 million in deposit liabilities, but did not acquire any
loans or other revenue producing assets. During 1997, Cowlitz established a
trust department at its main office in Longview. In March 1998, Cowlitz
completed an initial public offering and in September 1998, Cowlitz acquired
Business Finance Corporation ("BFC") of Bellevue, Washington which provides
asset-based lending services to companies throughout the western United States.

    During 1999, Cowlitz has continued to expand its business operations. In
July and August 1999, Cowlitz acquired Bay Mortgage of Bellevue, Washington and
Bay Mortgage of Seattle, both of which are residential mortgage companies
located in the greater Seattle area. In September 1999, Cowlitz Bank opened a DE
NOVO branch in Bellevue doing business as Bay Bank and acquired Bay Escrow of
Seattle, Washington.

    Cowlitz Bank has made a strategic decision to lower its cost of funds by not
aggressively repricing out of area certificates of deposit as they matured.
Cowlitz' average cost of funds has declined to 3.98% in the nine months ended
September 30, 1999 compared to 4.31% during the same period in 1998. Although
total loans increased at September 30, 1999 from December 31, 1998, average
earnings assets declined during the nine months ended September 30, 1999
compared to the comparable period in the prior year.

RESULTS OF OPERATIONS

    For financial institutions, the primary component of earnings is net
interest income. Net interest income is the difference between interest income,
principally from loans and investment securities portfolios, and interest
expense, principally on customer deposits. Changes in net interest income result
from changes in "volume," "spread" and "margin." Volume refers to the dollar
level of interest-earning assets and interest-bearing liabilities. Spread refers
to the difference between the yield on interest-earning assets and the cost of
interest-bearing liabilities. Net interest margin is the ratio of net interest
income to total interest-earning assets and is influenced by the level and
relative mix of interest-earning assets and interest-bearing liabilities.

NINE MONTHS ENDED SEPTEMBER 30, 1999 AND 1998

    NET INTEREST INCOME.  Net interest income for the nine months ended
September 30, 1999 was $8.3 million compared to $7.1 million at September 30,
1998. Total interest earning assets averaged $154.4 million for the nine months
ended September 30, 1999, compared to $163.6 million for the corresponding
period in 1998. The average yield on interest earning assets increased to 10.75%
during the first nine months of 1999 compared to 9.84% for the corresponding
period in 1998. This increase is

                                      A-10
<PAGE>
a result of investing funds in higher yielding loans at BFC, the Bank's mortgage
division and in commercial loans generated at the new branch in Bellevue,
Washington. The loans at BFC typically yield a higher rate of interest than
those loans generated by Cowlitz Bank. As shown in the table below, during the
first nine months of 1999, the average yields earned at Cowlitz Bank have
increased slightly to 9.61% for the nine months ended September 30, 1999, from
9.46% for the same period in 1998. Cowlitz Bank's average yields have increased
as a result of the addition of the two mortgage companies in the third quarter
of 1999. The Company has decreased its interest earning assets, as excess funds
invested at FHLB have declined due to the Company's decision to reduce its
higher rate, out of state certificates of deposit in the first eight months of
the year and to use its cash to pay for acquisitions during the third quarter of
1999.

<TABLE>
<CAPTION>
                                                             NINE MONTHS ENDED
                                                               SEPTEMBER 30,
                                                            -------------------
                                                              1999       1998
                                                            --------   --------
<S>                                                         <C>        <C>
COWLITZ BANK
Interest Earned...........................................   10,987     11,591
Average interest earning assets...........................  152,482    163,365
Average yields earned.....................................     9.61%      9.46%
</TABLE>

    Interest bearing liabilities averaged $111.8 million and $125.6 million
during the first nine months of 1999 and 1998, respectively. The average cost of
these liabilities decreased in the first nine months of 1999 to 5.00% from 5.26%
in the first nine months of 1998. As discussed above, Cowlitz has allowed
certain higher rate certificates of deposit to mature and not be renewed.

    ANALYSIS OF NET INTEREST INCOME.  The following table presents information
regarding yields and interest earning assets, expense on interest bearing
liabilities, and net yields on interest earning assets for periods indicated on
a tax equivalent basis.

<TABLE>
<CAPTION>
                                                         NINE MONTHS ENDED
                                                           SEPTEMBER 30,
                                                        -------------------    INCREASE
                                                          1999       1998     (DECREASE)    CHANGE
                                                        --------   --------   ----------   --------
                                                                        (UNAUDITED)
<S>                                                     <C>        <C>        <C>          <C>
                                                                 (IN THOUSANDS OF DOLLARS)
Interest income(1)....................................  $ 12,448   $ 12,075    $    373       3.1%
Interest expense......................................     4,190      4,954        (764)    (15.4)%
                                                        --------   --------    --------
Net interest income...................................  $  8,258   $  7,121    $  1,137      16.0%
                                                        ========   ========    ========
Average interest earning assets.......................  $154,422   $163,630    $ (9,280)     (5.6)%
Average interest bearing liabilities..................  $111,751   $125,623    $(13,377)    (10.7)%
Average yields earned(2)..............................     10.75%      9.84%        .91%
Average rates paid(2).................................      5.00%      5.26%       (.26)%
Net interest spread(2)................................      5.75%      4.58%       1.17%
Net interest margin(2)................................      7.13%      5.80%       1.33%
</TABLE>

------------------------

(1) Interest earned on nontaxable securities has been computed on a 34% tax
    equivalent basis.

(2) Ratios for the nine months ended September 30, 1999 and 1998 have been
    annualized.

                                      A-11
<PAGE>
    NON-INTEREST INCOME.  Total non-interest income increased to $1.2 million
for the first nine months of 1999, compared to $734,000 during the same period
of 1998. Non-interest income consists of the following components:

<TABLE>
<CAPTION>
                                                                  NINE MONTHS
                                                                     ENDED
                                                                 SEPTEMBER 30,
                                                              -------------------
                                                                1999       1998
                                                              --------   --------
<S>                                                           <C>        <C>
Service charge on deposit accounts..........................   $  511      $487
Credit Card income..........................................      101        85
Fiduciary income............................................      105        39
ATM income..................................................       41        29
Safe deposit box fees.......................................       32        30
Gains on mortgage loans sold................................      294        --
Underwriting fees...........................................       39        --
Other miscellaneous fees and income.........................       77        64
                                                               ------      ----
Total non-interest income...................................   $1,200      $734
                                                               ======      ====
</TABLE>

    The increase in non-interest income is primarily a result of the expansion
in services provided by the mortgage division's of Cowlitz Bank as well as the
continued growth of the Trust Department. Gains on mortgage loans sold consist
of the release of servicing on loans sold to correspondent lenders. The mortgage
division established this correspondent lending program and has expanded this
program with the acquisitions of the two mortgage companies.

    NON-INTEREST EXPENSE.  For the nine months ended September 30, 1999,
non-interest expense was $7.5 million as compared to $5.0 million for the nine
months ended September 30, 1998. Salaries and benefits expense of $4.2 million
for the first nine months of 1999 represents an increase of $1.4 million from
$2.8 million for the comparable period in 1998. At September 30, 1999, Cowlitz
had 162 full-time equivalent employees compared to 104 at September 30, 1998.
The increase between the nine month period in 1999 compared to the corresponding
period in 1998 was due to the addition of employees through acquisitions as well
as salary increases for existing employees generally ranging from three to six
percent a year.

    Net occupancy expenses consist of depreciation on premises, lease costs of
buildings and equipment, maintenance and repair expenses, utilities and related
expenses. Cowlitz' net occupancy expense at September 30, 1999 was $980,000 or
49.6% higher than $655,000 at September 30, 1998. The increase in occupancy
expense in 1999 was due primarily to the amortization of leasehold improvements
completed at branch locations and at the new Vancouver loan office in 1998 and
the first quarter of 1999. In addition, the Company assumed additional lease
payments in the third quarter 1999 for the acquired mortgage companies and the
new Bellevue branch.

    Other operating expenses consisting of communication expenses, advertising,
and other office expenses have increased 48.9% from $1.2 million at
September 30, 1998 to $1.8 million at September 30, 1999 as the Company has
expanded its mortgage operations into Vancouver, Washington and the greater
Bellevue/Seattle area.

    INCOME TAXES.  The provision for income taxes amounts to $341,000 and
$876,000 at September 30, 1999 and 1998, respectively. The provision resulted in
an effective tax rate of 38.2% and 34.0%, respectively. This increase was due to
the amortization of goodwill associated with the BFC acquisition that is not
deductible for income tax purposes.

    PROVISION FOR LOAN LOSSES.  Provisions for loan losses recorded for the nine
months ended September 30, 1999 were $1.1 million as compared to $243,000 at
September 30, 1998. Net charge-offs

                                      A-12
<PAGE>
were $785,000 and $283,000 at September 30, 1999 and 1998, respectively. Total
charges offs were $895,000 at September 30, 1999 and $305,000 at September 30,
1998. During the first quarter of 1999, Cowlitz determined that approximately
$348,000 in receivables purchased by its subsidiary BFC may not be collectible.
These receivables have been charged off during the first quarter and Cowlitz has
increased it provision for loan losses accordingly. The increase in the
provision also reflects the increase in nonaccrual loans and the level of net
charge-offs during the period.

    The following table shows Cowlitz Bancorp's loan loss performance for the
periods indicated:

<TABLE>
<CAPTION>
                                                              NINE MONTHS ENDING    DEC. 31,
                                                                SEPT. 30, 1999        1998
                                                              ------------------   ----------
                                                                        (UNAUDITED)
                                                                 (IN THOUSANDS OF DOLLARS)
<S>                                                           <C>                  <C>
Loans outstanding at end of period..........................       $140,633         $132,046
Average loans outstanding during the period.................       $129,167         $131,495
Allowance for loan losses, beginning of period..............       $  1,814         $  1,970
Loans charged off:
  Commercial................................................            767              618
  Real Estate...............................................             42               --
  Consumer..................................................             32               22
  Credit Cards..............................................             54               87
                                                                   --------         --------
  Total loans charged-off...................................            895              727
                                                                   --------         --------
Recoveries:
  Commercial................................................             94               --
  Real Estate...............................................             --                3
  Consumer..................................................             16                4
  Credit Cards..............................................             --               10
                                                                   --------         --------
    Total recoveries........................................            110               17
                                                                   --------         --------
Provision for loan losses...................................          1,065              509
                                                                   --------         --------
Allowance for loan losses, end of period....................       $  2,094         $  1,814
                                                                   ========         ========
Ratio of net loans charged-off to average loans
  outstanding...............................................            .61%             .54%
Ratio of allowance for loan losses to loans at end of
  period....................................................           1.49%            1.37%
</TABLE>

    At September 30, 1999 nonperforming assets were $3.1 million or 1.7% of
total assets. Nonaccrual loans were $3.0 million at September 30, 1999 and
$2.7 million at September 30, 1998. From September 30, 1998 to September 30,
1999, nonaccrual loans increased primarily in commercial loans secured by real
estate. BFC accounted for approximately $178,000 of the total nonaccrual loans,
reflecting the more aggressive lending mix of its portfolio. It is not unusual
in the normal course of business for BFC to have loans that become more than
90 days past due and are therefore placed on nonaccrual status, although
management does not necessarily believe that losses are probable on these loans.
Approximately $2.0 million of the remaining non-accrual loans reflect loans
primarily secured by real estate. Any losses on non-accrual loans that are
considered probable have been estimated by management in its regular quarterly
assessment of the allowance for loan losses as discussed in the Loan Losses and
Recoveries disclosure. The increase in the provision for loan losses each year
is largely reflective of the increase in non-accrual loans and the level of net
charge-offs during the period. Also contributing is the growth in loans late in
the third quarter of 1999.

    Other real estate owned decreased to $55,000 as of September 30, 1999
compared to $573,000 at September 30, 1998, as a result of the sale of
properties classified as other real estate owned.

                                      A-13
<PAGE>
YEARS ENDED DECEMBER 31, 1998, 1997 AND 1996

    NET INTEREST INCOME.  Net interest income for the year ended December 31,
1998 was $9.9 million an increase of 21.1% from $8.1 million in 1997, which was
$684,000 higher than 1996. Total interest earning assets averaged
$162.2 million for the year ended December 31, 1998, compared to $152.9 million
and $134.2 million for the corresponding periods in 1997 and 1996, respectively.
The increase in average earning assets between 1998 and 1997 was attributable to
an increase in taxable securities and interest earning balances due from banks
after Cowlitz' initial public offering in March of 1998, as well as the increase
in loans after Cowlitz' acquisition of BFC. For the year ended December 31,
1997, the increase in average earning assets was $18.6 million, the largest
component of which was an increase in the amount of loans. The overall
tax-equivalent yield on interest earning assets was 10.09% in 1998, compared to
9.87% in 1997 and 10.16% in 1996. The yield on interest-earning assets increased
in 1998 when compared to 1997 due to loans at BFC which produce higher yields
than loans at Cowlitz Bank. Interest yields also increased on investments. In
1997, yields were lower on earning assets when compared to 1996, primarily due
to lower interest rates on loans due to market conditions in Cowlitz Bank's
market area.

    Interest expense as a percentage of earning assets decreased to 4.01% in
1998, compared to 4.54% in 1997 and 4.60% in 1996. The average cost of interest
bearing liabilities remained 5.30% in 1998 and 1997 compared to 5.35% in 1996.
Cowlitz' net interest spread was 4.79% in 1998, 4.57% in 1997, and 4.81% in
1996. The increase between 1998 and 1997 resulted from higher yields received on
interest earning assets. Local competitive pricing conditions and funding needs
for Cowlitz' investments and loans were the primary determinants of rates paid
for deposits during 1998, 1997 and 1996.

                                      A-14
<PAGE>
    AVERAGE BALANCES AND AVERAGE RATES EARNED AND PAID.  The following table
sets forth, for the periods indicated, information with regard to (i) average
balances of assets and liabilities, (ii) the total dollar amounts of interest
income on interest earning assets and interest expense on interest bearing
liabilities, (iii) resulting yields or costs, (iv) net interest income and
(v) net interest spread. Nonaccrual loans have been included in the table as
loans carrying a zero yield. Loan fees are recognized as income using the
interest method over the life of the loan.
<TABLE>
<CAPTION>
                                                           YEAR ENDED DECEMBER 31,
                               -------------------------------------------------------------------------------
                                                1998                                     1997
                               --------------------------------------   --------------------------------------
                                  AVERAGE      INTEREST                    AVERAGE      INTEREST
                                OUTSTANDING    EARNED/                   OUTSTANDING    EARNED/
                                  BALANCE        PAID     YIELD/RATE       BALANCE        PAID     YIELD/RATE
                               -------------   --------   -----------   -------------   --------   -----------
                                                           (DOLLARS IN THOUSANDS)
<S>                            <C>             <C>        <C>           <C>             <C>        <C>
                                                   ASSETS:

Loans........................    $131,495      $14,103       10.73%       $130,362      $13,700       10.51%
Taxable Securities...........      15,071          955        6.34%         10,261          667        6.50%
Nontaxable securities(1).....          81            4        4.94%             --           --        0.00%
Trading assets...............          --           --        0.00%             --           --        0.00%
Federal funds sold...........          --           --        0.00%             --           --        0.00%
Interest earning balances due
  from Banks.................      15,512        1,305        8.41%         12,259          719        5.87%
                                 --------      -------       -----        --------      -------       -----
    Total interest earning
      assets.................    $162,159      $16,367       10.09%       $152,882      $15,086        9.87%
Cash and due from banks......       8,528                                    7,553
Premises and equipment,
  net........................       5,846                                    5,064
Allowance for loan losses....      (1,930)                                  (1,935)
Net intangibles..............       2,171                                      580
Other assets.................       2,045                                    1,846
                                 --------                                 --------
    Total assets.............    $178,819                                 $165,990
                                 ========                                 ========

                                     LIABILITIES AND SHAREHOLDERS EQUITY:
Savings and interest-bearing
  demand deposits............    $ 46,291      $ 1,894        4.09%       $ 37,568      $ 1,253        3.34%
Certificates of deposit......      52,682        3,048        5.79%         70,641        4,246        6.01%
Long-term borrowings.........      21,755        1,469        6.75%         21,773        1,401        6.43%
Short-term borrowings........       1,865           90        4.83%            955           43        4.50%
                                 --------      -------       -----        --------      -------       -----
    Total interest bearing
      liabilities............    $122,593      $ 6,501        5.30%       $130,937      $ 6,943        5.30%
Non-interest bearing
  deposits...................      28,672                                   21,621
Other liabilities............         851                                      675
                                 --------                                 --------
    Total liabilities........     152,116                                  153,233
Shareholders' equity.........      26,703                                   12,757
                                 --------                                 --------
    Total liabilities and
      shareholders' Equity...    $178,819                                 $165,990
                                 ========                                 ========
Net interest income..........                  $ 9,866                                  $ 8,143
                                               =======                                  =======
Net interest spread..........                                 4.79%                                    4.57%
Average yield on earning
  assets.....................                                10.09%                                    9.87%
Interest expense to earning
  assets.....................                                 4.01%                                    4.54%
Net interest income to
  earning assets.............                                 6.08%                                    5.33%

<CAPTION>
                                      YEAR ENDED DECEMBER 31,
                               --------------------------------------
                                                1996
                               --------------------------------------
                                  AVERAGE      INTEREST
                                OUTSTANDING    EARNED/
                                  BALANCE        PAID     YIELD/RATE
                               -------------   --------   -----------
                                       (DOLLARS IN THOUSANDS)
<S>                            <C>             <C>        <C>
                                              ASSETS:
Loans........................    $118,957      $12,721       10.69%
Taxable Securities...........       6,890          386        5.60%
Nontaxable securities(1).....          36            3        8.33%
Trading assets...............         589           34        5.77%
Federal funds sold...........          --           --        0.00%
Interest earning balances due
  from Banks.................       7,777          490        6.30%
                                 --------      -------       -----
    Total interest earning
      assets.................    $134,249      $13,634       10.16%
Cash and due from banks......       6,021
Premises and equipment,
  net........................       2,309
Allowance for loan losses....      (1,801)
Net intangibles..............          --
Other assets.................       1,861
                                 --------
    Total assets.............    $142,639
                                 ========
                                LIABILITIES AND SHAREHOLDERS EQUITY:
Savings and interest-bearing
  demand deposits............    $ 30,834      $ 1,031        3.34%
Certificates of deposit......      64,863        3,960        6.11%
Long-term borrowings.........      17,315        1,073        6.20%
Short-term borrowings........       2,359          110        4.66%
                                 --------      -------       -----
    Total interest bearing
      liabilities............    $115,371      $ 6,174        5.35%
Non-interest bearing
  deposits...................      16,196
Other liabilities............         639
                                 --------
    Total liabilities........     132,206
Shareholders' equity.........      10,433
                                 --------
    Total liabilities and
      shareholders' Equity...    $142,639
                                 ========
Net interest income..........                  $ 7,460
                                               =======
Net interest spread..........                                 4.81%
Average yield on earning
  assets.....................                                10.16%
Interest expense to earning
  assets.....................                                 4.60%
Net interest income to
  earning assets.............                                 5.56%
</TABLE>

----------------------------------

(1) Interest earned on nontaxable securities has been computed on a 34 percent
    tax equivalent basis.

                                      A-15
<PAGE>
    ANALYSIS OF CHANGES IN INTEREST DIFFERENTIAL.  The following table shows the
dollar amount of the increase (decrease) in Cowlitz' net interest income and
expense and attributes such dollar amounts to changes in volume as well as
changes in rates. Rate/volume variance have been allocated to volume changes:

<TABLE>
<CAPTION>
                                                                 YEAR ENDED DECEMBER 31,
                                           -------------------------------------------------------------------
                                                   1998 VERSUS 1997                   1997 VERSUS 1996
                                           --------------------------------   --------------------------------
                                                INCREASE                           INCREASE
                                            (DECREASE) DUE TO      TOTAL       (DECREASE) DUE TO      TOTAL
                                           -------------------   INCREASE/    -------------------   INCREASE/
                                            VOLUME      RATE     (DECREASE)    VOLUME      RATE     (DECREASE)
                                           --------   --------   ----------   --------   --------   ----------
                                                                 (DOLLARS IN THOUSANDS)
<S>                                        <C>        <C>        <C>          <C>        <C>        <C>
Interest Income:
Interest earning balances due From
  banks..................................  $   275     $ 311      $   586      $  262     $ (33)      $  229
  Trading account income.................       --        --           --         (34)       --          (34)
Investment security income:
  Taxable securities.....................      304       (16)         288         219        62          281
  Nontaxable securities..................        3        --            3          (2)       --           (2)
  Loans, including fees on loans.........      116       287          403       1,193      (214)         979
                                           -------     -----      -------      ------     -----       ------
    Total interest income................      698       582        1,280       1,638      (185)       1,453
                                           -------     -----      -------      ------     -----       ------
Interest expense:
  Savings and interest bearing Demand....      359       282          641         222        --          222
  Certificates of deposit................   (1,043)     (155)      (1,198)        351       (65)         286
  Short-term borrowings..................       44         3           47         (63)       (4)         (67)
  Long-term borrowings...................       (2)       70           68         288        40          328
                                           -------     -----      -------      ------     -----       ------
    Total interest expense...............     (642)      200         (442)        798       (29)         769
                                           -------     -----      -------      ------     -----       ------
Net interest spread......................  $ 1,340     $ 382      $ 1,722      $  840     $(156)      $  684
                                           =======     =====      =======      ======     =====       ======
</TABLE>

    PROVISION FOR LOAN LOSSES.  The amount of the allowance for loan losses is
analyzed by management on a regular basis to ensure that it is adequate to
absorb losses inherent in the loan portfolio as of the reporting date. When a
provision for loan losses is recorded, the amount is based on past charge-off
experience, a careful analysis of the current loan portfolio, the level of
nonperforming and impaired loans, evaluation of future economic trends in
Cowlitz' market area, and other factors relevant to the loan portfolio. See
"Allowance for Loan Losses" for a more detailed discussion.

    Cowlitz' provision for loan losses was $509,000, $375,000 and $281,000 for
the years ended December 31, 1998, 1997 and 1996, respectively. Net charge-offs
were $710,000 in 1998 compared to net charge-offs of $299,000 and $150,000 for
1997 and 1996 respectively. Total charge-offs of $727,000 in 1998 reflect losses
realized in the portfolio that Cowlitz had recognized previously through the
provision for loan losses. Management continues to closely monitor the loan
quality and existing relationships.

    Nonaccrual loans were $2.7 million at December 31, 1998 and $1.9 million at
December 31, 1997. During 1998, nonaccrual loans increased primarily in
commercial loans secured by real estate. Included in the nonaccrual loans of
$2.7 million are five borrowing relationships with an aggregate total of
$1.7 million that are largely secured by real estate. Another component of this
increase is approximately $331,000 of loans at Cowlitz' subsidiary BFC. It is
not unusual in the normal course of business for BFC to have loans that become
more than 90 days past due and are therefore placed on nonaccrual status,
although management does not necessarily believe that losses are probable on
these loans. Other real estate increased $485,000 during 1998, as a result of
the reclassification of loans from nonaccrual in 1997 to other real estate owned
in 1998. Any losses on nonaccrual loans, which are considered probable, have
been estimated by management in its regular quarterly assessment of the

                                      A-16
<PAGE>
allowance for loan losses as discussed in the "Allowance for Loan Losses". The
increase in the provision for loan losses each year is largely reflective of the
increases in nonaccrual loans during the periods. For a more detailed discussion
see "Allowance for Loan Losses".

    NON-INTEREST INCOME.  Non-interest income consists of the following
components:

<TABLE>
<CAPTION>
                                                                   DECEMBER 31,
                                                          ------------------------------
                                                            1998       1997       1996
                                                          --------   --------   --------
<S>                                                       <C>        <C>        <C>
Service charge on deposit accounts......................    $656       $563      $ 387
Net gains on sales of securities........................       5         --       (309)
Credit Card income......................................     114        100         81
Fiduciary income........................................      57         --         --
ATM income..............................................      40         13         --
Safe deposit box fees...................................      30         15         12
Insurance Commissions...................................       9         13         26
Data processing income..................................      --         11         25
Other miscellaneous fees and income.....................      67         34         74
                                                            ----       ----      -----
  Total non-interest income.............................    $978       $749      $ 296
                                                            ====       ====      =====
</TABLE>

    Total non-interest income has ranged from $978,000 for 1998, to $749,000 for
1997 and $296,000 for 1996. Service charges on deposit accounts increased to
$656,000 in 1998 from $563,000 in 1997 and $387,000 in 1996 primarily because of
the increase in deposits from the acquisition of three Wells Fargo Bank branches
in July 1997. ATM income and safe deposit income have also increased after the
branch acquisition. The opening of the Trust Department added $57,000 in
non-interest income during 1998. The increase in non-interest income of $453,000
from 1996 to 1997 primarily reflects the loss in Cowlitz' trading account of
$309,000 in 1996. The loss was due primarily to the volatility of interest rates
during this period. Cowlitz did not conduct any trading activities during 1998
or 1997.

    NON-INTEREST EXPENSE.  Non-interest expense consists principally of
employees' salaries and benefits, occupancy costs, data processing and
communication expenses, FDIC (Federal Deposit Insurance Corporation) insurance
premiums, professional fees, and other non-interest expenses. Non-interest
expenses increased 31.1% to $6.9 million for the year ended December 31, 1998
compared to $5.3 million for the year ended December 31, 1997, which was an
increase of 43.5% compared to $3.7 million for the year ended December 31, 1996.
As discussed below, the primary reasons for this increase were increased
staffing costs, as well as an increase in other operating expense such as
occupancy expense and amortization of the deposit premium from the acquisition
of the three Wells Fargo Bank branches in July 1997 and the goodwill
amortization from the acquisition of BFC in September 1998.

    A measure of Cowlitz' ability to contain non-interest expenses is the
efficiency ratio. This statistic is derived by dividing total non-interest
expenses by total net interest income and non-interest income. Cowlitz'
efficiency ratio increased to 63.89% for the year ended December 31, 1998
compared to 59.42% for the corresponding period in 1997 and 47.48% for the year
ended December 31, 1996, largely as a result of Cowlitz' expansion activities
during these periods.

    Salaries and benefits expense of $3.8 million in 1998 represented an
increase of $997,000 or 36% from $2.8 million reported in 1997 which was
$641,000 or 30% higher than the $2.1 million reported in 1996. In 1997, the
salary expense reflected the addition of the employees that remained with
Cowlitz Bank after the acquisition of the Wells Fargo branches in July 1997.
During 1998, the salary and benefit expense includes the addition of
approximately 22 employees from the branches for a twelve-month period. All of
these employees were with Cowlitz at both December 31, 1997 and December 31,
1998, but only received five and one-half months salary from Cowlitz in 1997.
Also contributing to the

                                      A-17
<PAGE>
increase were increases in salary for existing employees generally ranging from
three to six percent a year. At December 31, 1998, Cowlitz had 105 full-time
equivalent employees compared to 99 and 63 at December 31, 1997 and 1996,
respectively.

    Net occupancy expenses consist of depreciation on premises, lease costs,
equipment, maintenance and repair expenses, utilities and related expenses.
Cowlitz' net occupancy expense in 1998 of $888,000 was $164,000 or 22.7% higher
than the $724,000 reported in 1997, which was $331,000 or 84.2% higher than the
$393,000 reported in 1996. The increase in occupancy expense in these periods
was due primarily to building a new branch in Castle Rock and the remodel of the
Triangle branch, both of which occurred in 1998. Also contributing to these
increases were the expansion of Cowlitz' main office facility, the acquisition
of the Wells Fargo branches in July 1997 and the opening of a branch in Kelso in
late 1996.

    Intangible assets included a deposit premium of $1.6 million and
$1.8 million, net of accumulated amortization, at December 31, 1998 and 1997,
respectively. The deposit premium is being amortized using an accelerated method
over a ten-year life. Intangible assets at December 31, 1998 also included
goodwill of $1.5 million, net of accumulated amortization, representing the
excess of acquisition costs over the fair value of net assets that arose in
connection with the acquisition of Business Finance Corporation and is being
amortized on a straight-line basis over a fifteen-year period. At December 31,
1998, expenses related to the amortization of intangibles were $309,000 compared
to $123,000 at December 31, 1997 and $0 at December 31, 1996.

    Other operating expenses such as insurance, legal and accounting expenses,
service charges, postage, and other business expenses were $1.7 million at
December 31, 1998, $1.4 million at December 31, 1997, and $1.0 million at
December 31, 1996. The increases from year to year were due to Cowlitz'
continued growth and expansion.

    INCOME TAXES.  The provision for income taxes amounted to $1.2 million,
$1.1 million and $1.3 million for 1998, 1997, and 1996, respectively. The
provision resulted in an effective tax rate of 34.7% in 1998, 34.3% in 1997, and
34.2% in 1996.

FINANCIAL CONDITION

                             SUMMARY BALANCE SHEET

<TABLE>
<CAPTION>
                                                         DECEMBER 31,                          INCREASE (DECREASE)
                                                ------------------------------   ------------------------------------------------
                                                  1998       1997       1996       12/31/97-12/31/98          12/31/96-12/31/97
                                                --------   --------   --------   ---------------------      ---------------------
                                                                                 (DOLLARS)   (PERCENT)      (DOLLARS)   (PERCENT)
                                                                             (DOLLARS IN THOUSANDS)
<S>                                             <C>        <C>        <C>        <C>         <C>            <C>         <C>
ASSETS
  Cash and due from banks.....................  $ 22,705   $ 23,109   $ 20,905   $   (404)      (1.7)%       $ 2,204      10.5 %
  Investment securities.......................    11,530      8,481      5,391      3,049       36.0 %         3,090      57.3 %
  Loans, net..................................   130,232    129,993    124,657        239        0.2 %         5,336       4.3 %
  Other assets................................    13,878     11,710      8,204      2,168       18.5 %         3,506      42.7 %
                                                --------   --------   --------   --------                    -------
  Total assets................................  $178,345   $173,293   $159,157   $  5,052        2.9 %       $14,136       8.9 %
                                                ========   ========   ========   ========                    =======
LIABILITIES
  Non-interest-bearing deposits...............  $ 33,062   $ 27,141   $ 16,821   $  5,921       21.8 %       $10,320      61.4 %
  Interest-bearing deposits...................    89,299    109,068    106,476    (19,769)     (18.1)%         2,592       2.4 %
                                                --------   --------   --------   --------
  Total deposits..............................   122,361    136,209    123,297    (13,848)     (10.2)%        12,912      10.5 %
  Other liabilities...........................    25,064     23,197     24,047      1,867        8.0 %          (850)     (3.5)%
SHAREHOLDERS' EQUITY..........................    30,920     13,887     11,813     17,033      122.7 %         2,074      17.6 %
                                                --------   --------   --------   --------                    -------
  Total liabilities and shareholders'
    equity....................................  $178,345   $173,293   $159,157   $  5,052        2.9 %       $14,136       8.9 %
                                                ========   ========   ========   ========                    =======
</TABLE>

                                      A-18
<PAGE>
    INVESTMENT SECURITIES.  At December 31, 1998, Cowlitz' portfolio of
investment securities totaled $11.5 million, a 36% increase when compared to a
securities portfolio of $8.5 million at December 31, 1997. The investment
portfolio increased during 1998 primarily as a result of the investment of the
offering proceeds in March 1998.

    Cowlitz Bancorp follows a financial accounting principle which requires the
identification of investment securities as held-to-maturity, available-for-sale
or trading assets. Securities designated as held-to-maturity are those that
Cowlitz Bancorp has the intent and ability to hold until they mature or are
called. Available-for-sale securities are those that management may sell if
liquidity requirements dictate or alternative investment opportunities arise.
Trading assets are purchased and held principally for the purpose of reselling
them within a short period of time. The mix of available-for-sale and
held-to-maturity investment securities is considered in the context of Cowlitz'
overall asset-liability policy and illustrates management's assessment of the
relative liquidity of Cowlitz. At December 31, 1998, the investment portfolio
consisted of 61.3% available-for-sale securities and 38.7% held-to-maturity
investments. At December 31, 1997, available-for-sale securities were 47.4% and
held-to-maturity investments were 52.6% of the investment portfolio. Cowlitz did
not conduct any trading activities during 1998 or 1997. See Note 2 to Cowlitz'
Consolidated Financial Statements for the year ended December 31, 1998.

    The following table provides the book value of Cowlitz' portfolio of
investment securities as of December 31, 1998 and 1997.

<TABLE>
<CAPTION>
                                                          DECEMBER 31,
                                           -------------------------------------------
                                                   1998                   1997
                                           --------------------   --------------------
                                           AMORTIZED     FAIR     AMORTIZED     FAIR
                                             COST       VALUE       COST       VALUE
                                           ---------   --------   ---------   --------
                                                     (DOLLARS IN THOUSANDS)
<S>                                        <C>         <C>        <C>         <C>
AVAILABLE-FOR-SALE
U.S. Treasury securities.................   $6,994      $7,065     $3,993      $4,017
                                            ------      ------     ------      ------
    Total................................   $6,994      $7,065     $3,993      $4,017
                                            ======      ======     ======      ======
HELD-TO-MATURITY
U.S. Treasury securities.................   $  999      $1,021     $2,978      $3,000
Municipal bond...........................      199         199         --          --
Certificates of deposit..................    3,267       3,267      1,486       1,486
                                            ------      ------     ------      ------
    Total................................   $4,465      $4,487     $4,464      $4,486
                                            ======      ======     ======      ======
</TABLE>

    At December 31, 1998, Cowlitz' available-for-sale and held-to-maturity
investments had a total net unrealized gains of approximately $93,000. This
compares to net unrealized gains of approximately $46,000 at December 31, 1997.
Unrealized gains and losses reflect changes in market conditions and do not
represent the amount of actual profits or losses Cowlitz may ultimately realize.
Actual realized gains and losses occur at the time investment securities are
sold or redeemed.

    In 1991, Cowlitz became a member and shareholder in the Federal Home Loan
Bank of Seattle. Cowlitz' relationship and stock investment with the FHLB
provides a borrowing source for meeting liquidity requirements, in addition to
dividend earnings. Investment in FHLB stock was $2.9 million at December 31,
1998 compared to $2.7 million at December 31, 1997.

    At December 31, 1998, net unrealized gains on available-for-sale securities
were $47,000 representing 0.41% of the total portfolio. Management has no
current plans to sell any of these securities.

                                      A-19
<PAGE>
    The following table summarizes the contractual maturities and weighted
average yields of investment securities at December 31, 1998:
<TABLE>
<CAPTION>
                                                                   ONE                 AFTER 5                 DUE
                                        ONE YEAR                 THROUGH               THROUGH               THROUGH
                                         OR LESS      YIELD      5 YEARS     YIELD     10 YEARS    YIELD     10 YEARS    YIELD
                                       -----------   --------   ---------   --------   --------   --------   --------   --------
<S>                                    <C>           <C>        <C>         <C>        <C>        <C>        <C>        <C>
U.S. Treasury securities.............    $2,008        6.13%     $6,056       5.63%      $ --         --       $ --        --
Other securities.....................     3,267        5.88%        100       4.00%        99       4.10%        --        --
                                         ------                  ------                  ----                  ----       ---
  Total..............................    $5,275        5.90%     $6,156       5.23%      $ 99       4.10%      $ --        --
                                         ======                  ======                  ====                  ====       ===

<CAPTION>

                                        TOTAL      YIELD
                                       --------   --------
<S>                                    <C>        <C>
U.S. Treasury securities.............  $ 8,064      5.77%
Other securities.....................    3,466      5.78%
                                       -------
  Total..............................  $11,530      5.78%
                                       =======
</TABLE>

LOANS

    Outstanding loans totaled $140,633,000 at September 30, 1999, $132,046,000
at December 31, 1998, and $131,963,000 at December 31, 1997. Loan commitments
were $19.8 million at September 30, 1999, $24.7 million at December 31, 1998 and
$16.6 million at December 31, 1997.

    The following table presents the composition of Cowlitz' loan portfolio at
the dates indicated.

<TABLE>
<CAPTION>
                                                                          YEAR ENDED DECEMBER 31,
                                                               ---------------------------------------------
                                        SEPTEMBER 30, 1999             1998                    1997
                                       ---------------------   ---------------------   ---------------------
                                        AMOUNT    PERCENTAGE    AMOUNT    PERCENTAGE    AMOUNT    PERCENTAGE
                                       --------   ----------   --------   ----------   --------   ----------
                                                              (DOLLARS IN THOUSANDS)
<S>                                    <C>        <C>          <C>        <C>          <C>        <C>
Commercial..........................   $109,414      77.47%    $103,473      78.04%    $ 93,829      70.75%
Real estate construction............      3,401       2.41%       3,206       2.42%       3,495       2.64%
Real estate commercial..............      8,714       6.17%       7,026       5.30%       5,475       4.13%
Real estate mortgage................     14,691      10.40%      13,774      10.39%      24,167      18.22%
Consumer and other..................      5,007       3.55%       5,063       3.82%       5,571       4.20%
Contracts purchased.................         --         --           45       0.03%          81       0.06%
                                       --------     ------     --------     ------     --------     ------
                                        141,227     100.00%     132,587     100.00%     132,618     100.00%
                                                    ======                  ======                  ======
Deferred loan fees..................       (594)                   (541)                   (655)
                                       --------                --------                --------
Total loans.........................    140,633                 132,046                 131,963
Allowance for loan losses...........     (2,094)                 (1,814)                 (1,970)
                                       --------                --------                --------
  Total loans, net..................   $138,539                $130,232                $129,993
                                       ========                ========                ========
</TABLE>

    The following table shows the maturities and sensitivity of Cowlitz' loans
to changes in interest rates at the dates indicated:

<TABLE>
<CAPTION>
                                                     DECEMBER 31, 1998
                                  --------------------------------------------------------
                                                 DUE AFTER ONE
                                   DUE IN ONE      THROUGH 5     DUE AFTER 5
                                  YEAR OR LESS       YEARS          YEARS      TOTAL LOANS
                                  ------------   -------------   -----------   -----------
                                                   (DOLLARS IN THOUSANDS)
<S>                               <C>            <C>             <C>           <C>
Commercial Loans................    $ 40,416        $49,584        $13,473       $103,473
Real estate construction........       1,251          1,537            418          3,206
Real estate commercial..........       2,744          3,367            915          7,026
Real estate mortgage............       5,380          6,601          1,793         13,774
Consumer and other..............       1,996          2,447            620          5,063
Contracts purchased.............          --             --             45             45
                                    --------        -------        -------       --------
                                    $ 51,787        $63,536        $17,264       $132,587
                                    ========        =======        =======       ========
Loans with fixed interest
  rates.........................                                                 $ 97,584
Loans with floating interest
  rates.........................                                                   35,003
                                                                                 --------
  Total.........................                                                 $132,587
                                                                                 ========
</TABLE>

                                      A-20
<PAGE>
    In May 1993, the Financial Accounting Standards Board (FASB) issued SFAS
No. 114, "Accounting by Creditors for Impairment of a Loan" and in October 1996
issued SFAS No. 118, "Accounting by Creditors for Impairment of a Loan-Income
Recognition Disclosures, an amendment to SFAS No. 114." The adoption of SFAS
Nos. 114 and 118 did not have a material impact on the comparability of the
tables provided herein. Cowlitz, during its normal loan review procedures,
considers a loan to be impaired when it is probable that Cowlitz will be unable
to collect all amounts due according to the contractual terms of the loan
agreement. A loan is not considered to be impaired during a period of minimal
delay (less than 90 days). Cowlitz' measures impaired loans based on the present
value of expected future cash flows discounted at the loan's effective interest
rate or, as a practical expedient, at the loan's observable market price or the
fair market value of the collateral if the loan is collateral dependent.
Impaired loans are charged to the allowance when management believes, after
considering economic and business conditions, collection efforts, and collateral
position, that the borrowers financial condition is such that collection of
principal is not probable.

    At December 31, 1998 and 1997, Cowlitz recorded investment in certain loans
that were considered to be impaired was $2.7 million and $2.3 million,
respectively. Of these impaired loans, $891,000 and $302,000 have related
valuation allowance of $65,000 and $199,000, while $1.8 million and
$2.0 million did not require a valuation allowance. The balance of the allowance
for loan losses in excess of these specific reserves is available to absorb
losses from all loans. The average recorded investment in impaired loans for the
years ended December 31, 1998, 1997, and 1996, was approximately $2.4 million,
$1.3 million, and $342,000, respectively. Cowlitz' policy is to disclose as
impaired loans all loans that are past due 90 days or more as to either
principal or interest, except loans that are currently measured at fair value or
the lower of cost or fair value and credit card receivables, which are
considered large groups of smaller homogeneous loans and are collectively
evaluated for impairment. Interest payments received on impaired loans are
recorded as interest income, unless collection of the remaining recorded
investment is not probable, in which case payments received are recorded as a
reduction of principal. For the years ended December 31, 1998, 1997, and 1996,
interest income recognized on impaired loans totaled $77,000, $36,000, and
$14,000, respectively, all of which was recognized on a cash basis.

    Generally, no interest is accrued on loans when factors indicate collection
of interest is doubtful or when the principal or interest payment becomes
90 days past due, unless collection of principal and interest are anticipated
within a reasonable period of time and the loans are well secured. For such
loans, previously accrued but uncollected interest is charged against current
earnings, and income is only recognized to the extent payments are subsequently
received and collection of the remaining recorded principal balance is
considered probable.

    Cowlitz manages the general risks inherent in the loan portfolio by
following loan policies and underwriting practices designed to result in prudent
lending activities. The following table presents information with respect to
nonperforming assets:

<TABLE>
<CAPTION>
                                                  SEPTEMBER 30,      DECEMBER 31,
                                                  -------------   -------------------
                                                      1999          1998       1997
                                                  -------------   --------   --------
<S>                                               <C>             <C>        <C>
Loans on nonaccrual status......................     $3,003        $2,737     $1,897
Loans past due greater than 90 days but not on
  nonaccrual status.............................         --             9        432
Other real estate owned.........................         55           573         88
Troubled debt restructurings....................         --            --         --
                                                     ------        ------     ------
  Total nonperforming assets....................     $3,058        $3,319     $2,417
                                                     ======        ======     ======
Percentage of nonperforming assets to total
  assets........................................       1.67%         1.86%      1.39%
</TABLE>

                                      A-21
<PAGE>
    The increase in nonperforming loans from December 31, 1997 to December 31,
1998 is reflective of 5 borrowing relationships with an aggregate principal
balance of $1.7 million primarily secured by real estate. Also included in the
increase from December 31, 1997 to September 30, 1999 is approximately $509,000
of loans at Cowlitz' subsidiary BFC. It is not unusual in the normal course of
business for BFC to have loans that become more than 90 days past due and are
therefore placed on nonaccrual status, although management does not necessarily
believe that losses are probable on these loans. As of September 30, 1999,
approximately $2.0 million of the remaining non-accrual loans reflected loans
primarily secured by real estate. Any probable losses have been considered in
management's analysis of the allowance for loan losses.

LOAN LOSSES AND RECOVERIES

    The allowance for loan losses represents management's estimate of probable
losses which have occurred as of the date of the financial statements. The loan
portfolio is regularly reviewed to evaluate the adequacy of the allowance for
loan losses. In determining the level of the allowance, Cowlitz evaluates the
allowance necessary for specific non-performing loans and estimates losses
inherent in other loan exposures. An important element in determining the
adequacy of an allowance for loan losses is an analysis of loans by loan rating
categories. The risk of a credit is evaluated by Cowlitz' management at
inception of the loan using an established grading system. This grading system
currently includes ten levels of risk. Risk gradings range from "1" for the
strongest credits to "10" for the weakest; a "10" rated loan would normally
represent a loss. These gradings are reviewed annually or when indicators show
that a credit may have weakened, such as operating losses, collateral impairment
or delinquency problems.

    The result is an allowance with two components:

    SPECIFIC RESERVES:  The amount of specific reserves are established when
there are significant conditions or circumstances related to a loan that would
indicate that a loss would be incurred. Management considers in its analysis
expected future cash flows, the value of collateral and other factors that may
impact the borrower's ability to pay.

    GENERAL ALLOWANCE:  The amount of the general allowance is based on loss
factors assigned to Cowlitz' loan exposures based on internal credit ratings.
These loss factors are determined on the basis of historical charge-off
experience and suggested regulatory guidelines. The general allowance is
composed of two categories. The first component is calculated based upon the
loan balances classified in the five higher risk loan categories of "management
attention", "special mention", "substandard", "doubtful" and "loss" in Cowlitz'
Watch List. Suggested regulatory loss reserve factors are then applied to each
of these categories of classified loan balances, net of the balances of the
loans already considered in management's determination of its specific reserves.
The second component is calculated by applying historical loss factors to the
outstanding loan balance less any loans that are included in Cowlitz' specific
or higher risk allowances discussed above. Three levels of charge off history
are considered by management in arriving at this component of the general
allowance. They are average five-year net charge-offs, the previous year's
actual net charge-offs and an estimated maximum charge-off factor. Each of these
amounts is combined with the first component of the general allowance yielding a
range for the total general allowance. Management selects a general allowance
somewhere within this calculated range. Factors considered by management in
making this decision include the volume and mix of the existing loan portfolio,
including the volume and severity of nonperforming loans and adversely
classified credits; analysis of net charge-offs experienced on previously
classified loans; the nature and value of collateral securing the loans; the
trend in loan growth, including any rapid increase in loan volume within a
relatively short period of time; management's subjective evaluation of general
and local economic and business conditions affecting the collectibility of
Cowlitz' loans; the relationship and trend over the past several years of
recoveries in relation to charge-offs; and available outside information of a
comparable nature regarding the loan portfolios of other banks,

                                      A-22
<PAGE>
including peer group banks. This decision also reflects management's attempt to
ensure that the overall allowance appropriately reflects a margin for the
imprecision necessarily inherent in estimates of expected loan losses.

    The quarterly analysis of specific and general loss components of the
allowance is the principal method relied upon by management to ensure that
changes in estimated loan loss levels are adjusted on a timely basis. The
inclusion of historical loss factors in the process of determining the general
component of the allowance also acts as a self-correcting mechanism of
management's estimation process, as loss experience more remote in time is
replaced by more recent experience. In its analysis of the specific and the
general components of the allowance, management also considers the experience of
peer institutions and regulatory guidance in addition to Cowlitz' own
experience.

    Loans and other extensions of credit deemed uncollectible are charged to the
allowance. Subsequent recoveries, if any, are credited to the allowance. Actual
losses may vary from current estimates and the amount of the provision may be
either greater than or less than actual net charge-offs. The related provision
for loan losses that is charged to income is the amount necessary to adjust the
allowance to the level determined through the above process. In accordance with
Cowlitz' methodology for assessing the appropriate allowance for loan losses,
the general portion of the allowance increased to $1.5 million at September 30,
1999 compared to $1.1 million at December 31, 1998. Management believes this
increase is prudent given the increase in non-accrual loans and the level of net
charge-offs during the first nine months of 1999.

    At September 30, 1999 approximately $600,000 of the allowance for loan
losses was allocated based on an estimate of the amount that was necessary to
provide for potential losses related to specific loans, compared to
approximately $700,000 at December 31, 1998. Specific reserves declined as those
loans requiring specific reserves have been reduced by either principal payments
or have been charged-off.

    Management's evaluation of the factors above resulted in allowances for loan
losses of $2.1 million at September 30, 1999, $1.8 million at the end of 1998
and $2.0 million at the end of 1997. The allowance as a percentage of total
loans increased to 1.49% at September 30, 1999 from 1.37% at year-end 1998 and
1.49% at year-end 1997. The decline between year-end 1997 and year-end 1998
reflects charge-offs in 1998 which were considered by management in its
determination of the adequacy of the allowance for loan losses in periods prior
to charge-off. As such, these charge-offs reflect the realization of losses in
the portfolio that were recognized previously through provisions for loan
losses. The increase between December 31, 1998 and September 30, 1999 was due
primarily to the level of nonaccrual loans and the growth in the loan portfolio
late in the third quarter of 1999.

    The allowance for loan losses is based upon estimates of probable losses
inherent in the loan portfolio. The amount actually observed for these losses
can vary significantly from the estimated amounts.

                                      A-23
<PAGE>
    The following table shows Cowlitz' loan loss performance for the periods
indicated:

<TABLE>
<CAPTION>
                                                                       YEAR ENDED DECEMBER 31,
                                                    SEPTEMBER 30,   ------------------------------
                                                        1999          1998       1997       1996
                                                    -------------   --------   --------   --------
                                                                (DOLLARS IN THOUSANDS)
<S>                                                 <C>             <C>        <C>        <C>
Loans outstanding at end of period................    $140,633      $132,046   $131,963   $126,551
Average loans outstanding during the period.......    $129,167      $131,495   $130,362   $118,957
Allowance for loan losses, beginning of period....    $  1,814      $  1,970   $  1,894   $  1,763
Loans charged off:
  Commercial......................................         767           618        186         36
  Real estate.....................................          42            --          3         30
  Consumer........................................          32            22         23         22
  Credit cards....................................          54            87        112         70
                                                      --------      --------   --------   --------
    Total loans charged-off.......................         895           727        324        158
                                                      --------      --------   --------   --------
Recoveries:
  Commercial......................................          94            --          5          5
  Real estate.....................................          --             3         --         --
  Consumer........................................          16             4         20          1
  Credit cards....................................          --            10         --          2
                                                      --------      --------   --------   --------
    Total recoveries..............................         110            17         25          8
                                                      --------      --------   --------   --------
Provision for loan losses.........................       1,065           509        375        281
                                                      --------      --------   --------   --------
Adjustment incident to acquisition................          --            45         --         --
                                                      --------      --------   --------   --------
Allowance for loan losses, end of period..........    $  2,094      $  1,814   $  1,970   $  1,894
                                                      ========      ========   ========   ========
Ratio of net loans charged-off to average loans
  outstanding.....................................        0.61%         0.54%      0.23%      0.13%
Ratio of allowance for loan losses to loans at
  year end........................................        1.49%         1.37%      1.49%      1.50%
</TABLE>

DEPOSITS

    The following table sets forth the average balances of Cowlitz' interest
bearing liabilities, interest expense and average rates paid for the period
indicated:

<TABLE>
<CAPTION>
                                                                    YEAR ENDED DECEMBER 31,
                                ------------------------------------------------------------------------------------------------
                                             1998                             1997                             1996
                                ------------------------------   ------------------------------   ------------------------------
                                AVERAGE    INTEREST   AVERAGE    AVERAGE    INTEREST   AVERAGE    AVERAGE    INTEREST   AVERAGE
                                BALANCE    EXPENSE      RATE     BALANCE    EXPENSE      RATE     BALANCE    EXPENSE      RATE
                                --------   --------   --------   --------   --------   --------   --------   --------   --------
<S>                             <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>
Interest-bearing checking.....  $ 28,912    $1,396      4.83%    $ 21,956    $  766      3.49%    $ 16,209    $  533      3.29%
Savings.......................    17,379       498      2.87%      15,612       487      3.12%      14,625       498      3.41%
Certificates of deposit.......    52,682     3,048      5.79%      70,641     4,246      6.01%      64,863     3,960      6.11%
Long-term borrowings..........    21,755     1,469      6.75%      21,773     1,401      6.43%      17,315     1,073      6.20%
Short-term borrowings.........     1,865        90      4.83%         955        43      4.50%       2,359       110      4.66%
                                --------    ------               --------    ------               --------    ------
Total interest-bearing
  liabilities.................  $122,593    $6,501      5.30%    $130,937    $6,943      5.30%    $115,371    $6,174      5.35%
                                            ======                           ======                           ======
Total noninterest-bearing
  liabilities.................    29,523                           22,296                           16,835
                                --------                         --------                         --------
Total interest and
  noninterest-bearing
  liabilities.................  $152,116                         $153,233                         $132,206
                                ========                         ========                         ========
</TABLE>

                                      A-24
<PAGE>
    Deposits decreased to $122.4 million at December 31, 1998, a decrease of
10.2% from $136.2 at December 31, 1997, primarily as a result of Cowlitz
reducing pricing on certain of its higher yielding certificates after the
acquisition of deposits from the acquisitions of the Wells Fargo Bank branches
in July of 1997, intending to eliminate these higher cost certificates of
deposit at maturity. The decline in deposits has been primarily in time
deposits. Nonvolatile, non-interest bearing deposits, also referred to as core
deposits, have grown as a percentage of Cowlitz' deposit base. To the extent
that Cowlitz is able to fund operations with non-interest bearing core deposits,
net interest spread, the difference between interest income and interest
expense, will improve. At December 31, 1998, non-interest bearing demand
deposits were 27% of total deposits, compared to 19.9% of total deposits at
December 31, 1997.

    Interest bearing deposits consist of NOW, money market, savings and time
certificate accounts. By their nature, interest bearing account balances will
tend to grow or decline as Cowlitz reacts to changes in competitors' pricing and
interest payment strategies. At December 31, 1998, total interest bearing
deposit accounts of $89.3 million decreased $19.8 million or 18.1% from
December 31, 1997. This decline was concentrated in certificate of deposit
accounts as discussed above.

    Cowlitz has from time to time funded its growth with higher interest rate,
out of state certificates of deposit. At December 31, 1998, time certificates of
deposit over of $100,000 totaled $13.6 million or 32.5% of total outstanding
time deposits, compared to $18.6 million or 29.7% of total outstanding time
deposits at December 31, 1997. This decline in time deposits in excess of
$100,000 during 1998 and 1997 reflects management's decision to allow this type
of deposit to run-off following the Branch Acquisition in July 1997.

    The following table sets forth, by time remaining to maturity, all time
certificates of deposit accounts outstanding at December 31, 1998:

<TABLE>
<CAPTION>
                                                           TIME DEPOSITS OF       ALL OTHER TIME
                                                          $100,000 OR MORE(1)       DEPOSITS(2)
                                                          -------------------   -------------------
                                                                   (DOLLARS IN THOUSANDS)
<S>                                                       <C>        <C>        <C>        <C>
Reprice/Mature in three months or less..................  $ 6,796      49.89%   $10,547      37.26%
Reprice/Mature after three months through six months....    1,179       8.65%     6,898      24.37%
Reprice/Mature after six months through one year........    2,522      18.51%     5,908      20.87%
Reprice/Mature after one year through five years........    2,806      20.60%     4,706      16.62%
Reprice/Mature after five years.........................      320       2.35%       250        .88%
                                                          -------    -------    -------    -------
Total...................................................  $13,623     100.00%   $28,309     100.00%
                                                          =======    =======    =======    =======
</TABLE>

------------------------

(1) Time deposits of $100,000 or more represent 32.5% of total time deposits at
    December 31, 1998.

(2) All other time deposits represent 67.5% of total time deposits at
    December 31, 1998.

    At December 31, 1998, other borrowings have the following times remaining to
maturity:

<TABLE>
<CAPTION>
                                                                         DUE
                                                           DUE AFTER    AFTER
                                                DUE IN 3   3 MONTHS    ONE YEAR     DUE
                                                 MONTHS     THROUGH    THROUGH     AFTER
                                                OR LESS    ONE YEAR    5 YEARS    5 YEARS     TOTAL
                                                --------   ---------   --------   --------   --------
                                                               (DOLLARS IN THOUSANDS)
<S>                                             <C>        <C>         <C>        <C>        <C>
Short-term borrowings.........................   $2,275      $ --      $    --     $   --    $ 2,275
Long-term borrowings..........................       --       517       15,586      5,696     21,799
                                                 ------      ----      -------     ------    -------
Total borrowings..............................   $2,275      $517      $15,586     $5,696    $24,074
                                                 ======      ====      =======     ======    =======
</TABLE>

                                      A-25
<PAGE>
    Historically Cowlitz has utilized borrowings from the FHLB as an important
source of funding for its growth. Cowlitz has an established borrowing line with
the FHLB that permits it to borrow up to 25% of assets. Advances from the FHLB
have terms ranging from 1 through 15 years and at December 31, 1998, bear
interest at rates from 5.17% to 8.80%. At December 31, 1998, $21.7 million in
advances were outstanding from the FHLB and Cowlitz had additional borrowing
capacity for cash advances of $22.8 million. Cowlitz may increase its percentage
of borrowings from the FHLB in the future if circumstances warrant.

    ASSET-LIABILITY MANAGEMENT/INTEREST RATE SENSITIVITY.  The principal purpose
of asset-liability management is to manage Cowlitz' sources and uses of funds to
maximize net interest income under different interest rate conditions with
minimal risk. A part of asset-liability management involves interest rate
sensitivity, the difference between repricing assets and repricing liabilities
in a specific time period. The policy of Cowlitz is to control the exposure of
Cowlitz' earnings to changing interest rates by generally maintaining a position
within a narrow range around an "earnings neutral" or "balanced" position.
Cowlitz' board of directors has established guidelines for maintaining Cowlitz'
earnings risk due to future interest rate changes. This analysis provides an
indication of Cowlitz' earnings risk due to future interest rate changes. At
December 31, 1998, the analysis indicated that the earnings risk was within
Cowlitz' policy guidelines.

    A key component of the asset-liability management is the measurement of
interest-rate sensitivity. Interest-rate sensitivity refers to the volatility in
earnings resulting from fluctuations in interest rates, variability in spread
relationships, and the mismatch of repricing intervals between assets and
liabilities. Interest-rate sensitivity management attempts to maximize earnings
growth by minimizing the effects of changing rates, asset and liability mix, and
prepayment trends.

                                      A-26
<PAGE>
    The following table presents interest-rate sensitivity data at December 31,
1998. The interest rate gaps reported in the table arise when assets are funded
with liabilities having different repricing intervals. Since these gaps are
actively managed and change daily as adjustments are made in interest rate views
and market outlook, positions at the end of any period may not be reflective of
Cowlitz' interest rate view in subsequent periods. Active management dictates
that longer-term economic views are balanced against the prospects of short-term
interest rate changes in all repricing intervals.

<TABLE>
<CAPTION>
                                                    ESTIMATED MATURITY OR REPRICING AT DECEMBER 31, 1998
                                               ---------------------------------------------------------------
                                                 0-3        3-6        6-12       1-5        OVER
                                                MONTHS     MONTHS     MONTHS     YEARS     5 YEARS     TOTAL
                                               --------   --------   --------   --------   --------   --------
                                                                   (DOLLARS IN THOUSANDS)
<S>                                            <C>        <C>        <C>        <C>        <C>        <C>
INTEREST EARNING ASSETS:
  Interest earning balances due
  From banks.................................  $11,816    $    --    $    --    $    --    $    --    $ 11,816
  Investments available for sale(1)..........    1,002      1,006         --      5,057         --       7,065
  Investments held to maturity...............      991      1,979        297      1,098        100       4,465
  Federal Home Loan Bank Stock(1)............    2,869         --         --         --         --       2,869
  Loans, including fees......................   41,506      4,790      5,491     62,995     17,264     132,046
                                               -------    -------    -------    -------    -------    --------
  Total interest earning assets..............  $58,184    $ 7,775    $ 5,788    $69,150    $17,364    $158,261
                                               =======    =======    =======    =======    =======    ========
Allowance for loan losses....................                                                           (1,814)
Cash and due from banks......................                                                           10,889
Other assets.................................                                                           11,009
                                                                                                      --------
  Total assets...............................                                                         $178,345
                                                                                                      ========
INTEREST BEARING LIABILITIES:
  Savings and interest demand deposits.......  $29,613    $    --    $    --    $    --    $17,754    $ 47,367
  Certificates of deposit....................   17,343      8,077      8,430      7,981        101      41,932
  Borrowings.................................   17,026        207        127        100      6,614      24,074
                                               -------    -------    -------    -------    -------    --------
  Total interest bearing liabilities.........   63,982      8,284      8,557      8,081     24,469    $113,373
                                               =======    =======    =======    =======    =======    ========
Other liabilities............................                                                           34,052
Shareholders' equity.........................                                                           30,920
                                                                                                      --------
  Total liabilities & shareholders' equity...                                                         $178,345
                                                                                                      ========
Interest sensitivity gap.....................   (5,798)      (509)    (2,769)    61,069     (7,105)   $ 44,888
                                               -------    -------    -------    -------    -------    ========
Cumulative interest sensitivity gap..........  $(5,798)   $(6,307)   $(9,076)   $51,993    $44,888
                                               =======    =======    =======    =======    =======
</TABLE>

------------------------

(1) Equity investments have been placed in the 0-3 month category

The table illustrates that Cowlitz is liability sensitive in all periods except
in the 1-5 year period in which it is asset-sensitive. In an environment of
increasing interest rates, the theoretical net interest margins of Cowlitz would
be adversely affected for the 12 months following December 31, 1998, and
favorably thereafter. Conversely, in a declining interest-rate environment,
Cowlitz' theoretical net interest margins would be favorably affected for the
12 month period following December 31, 1998, and adversely thereafter.

    RETURN ON EQUITY AND ASSETS.  Net income for the year ended December 31,
1998, totaled $2.2 million for a return on average shareholders' equity of 8.34%
and a return on average total assets of 1.24%. These returns compare to a 16.65%
return on average equity and 1.28% return on average total assets for the
corresponding period in 1997. These declines reflect the additional common stock
issued in Cowlitz' March 1998 initial public offering and an increase in assets
for the year ended

                                      A-27
<PAGE>
December 31, 1998. The increase in assets is related to the increase in cash
after the March initial public offering.

    Return on daily average assets and equity and certain other ratios for the
periods indicated are presented below:

<TABLE>
<CAPTION>
                                                      YEAR ENDED DECEMBER 31,
                                           ---------------------------------------------
                                              1998             1997             1996
                                           -----------      -----------      -----------
                                           (DOLLARS IN THOUSANDS EXCEPT PER SHARE DATA)
<S>                                        <C>              <C>              <C>
Net income...............................   $  2,226         $  2,124         $  2,497
Average assets...........................   $178,819         $165,990         $142,639
Return on average assets.................       1.24%            1.28%            1.75%

Net income...............................   $  2,226         $  2,124         $  2,497
Average equity...........................   $ 26,703         $ 12,757         $ 10,433
Return on average equity.................       8.34%           16.65%           23.93%

Cash dividends paid per share............   $   0.06         $   0.05         $   0.04
Diluted earnings per share...............   $   0.57         $   0.78         $   0.97
Dividend payout ratio....................      10.53%            6.41%            4.12%

Average equity...........................   $ 26,703         $ 12,757         $ 10,433
Average assets...........................   $178,819         $165,990         $142,639
Average equity to asset ratio............      14.93%            7.69%            7.31%
</TABLE>

MARKET RISK

    Interest rate and credit risks are the most significant market risks
impacting Cowlitz' performance. Other types of market risk, such as foreign
currency exchange rate risk and commodity price risk, do not arise in the normal
course of Cowlitz' business activities. Cowlitz relies on loan reviews, prudent
loan underwriting standards and an adequate allowance for loan losses to
mitigate credit risk.

    Interest rate risk is managed through the monitoring of Cowlitz' gap
position (see Asset-Liability Management/Interest Rate Sensitivity) and
sensitivity to interest rate risk by subjecting Cowlitz' balance sheet to
hypothetical interest rate shocks. Cowlitz' primary objective in managing
interest rate risk is to minimize the adverse impact of changes in interest
rates on Cowlitz' net interest income and capital, while structuring Cowlitz'
asset/liability position to obtain the maximum yield-cost spread on that
structure.

    Rate shock is an instantaneous and complete adjustment in market rates of
various magnitudes on a static or level balance sheet to determine the effect
such a change in rates would have on Cowlitz' net interest income for the
succeeding twelve months, and the fair values of financial instruments.

    Cowlitz utilizes asset/liability-modeling software to determine the effect
of a shift in market interest rates, with scenarios of interest rates increasing
100 and 200 basis points and decreasing 100 and 200 basis points. The model
utilized to create the table presented below is based on the concept that all
rates do not move by the same amount or at the same time. Although certain
assets and liabilities may have similar maturities or periods to repricing, they
may not react correspondingly to changes in market interest rates. In addition,
interest rates on certain types of assets and liabilities may fluctuate with
changes in market interest rates, while interest rates on certain types of
assets may lag behind changes in market rates. Further, in the event of a change
in interest rates, prepayment and early withdrawal levels would likely deviate
from those assumed in the table. The ability of certain borrowers to make
scheduled payments on the adjustable rate loans may decrease in the event of an
interest rate increase due to adjustments in the amount of the payments.

                                      A-28
<PAGE>
    The model attempts to account for such limitations by imposing weights on
the gaps between assets and liabilities. These weights are based on the ratio
between the amount of rate change and each category of asset/liability, and the
amount of any change in the federal funds rate. Local conditions and the
strategy of Cowlitz determine the weights for loan and core deposits; the others
are set by national markets. In addition, a timing factor has been used as
(a) fixed rate instruments do not reprice immediately; (b) renewals may have
different term than original maturities; and (c) there is a timing factor
between rates on different instruments (i.e. core deposits usually reprice well
after there has been a change in the federal funds rate). Due to the various
assumptions used for this simulation analysis, no assurance can be given that
actual results will correspond with projected results.

    The following table shows the estimated impact of the interest rate shock on
net interest income and the fair values of financial instruments at
December 31, 1998:

<TABLE>
<CAPTION>
                                         FAIR VALUES OF FINANCIAL INSTRUMENTS
                            ---------------------------------------------------------------
                            NET INTEREST INCOME         ASSETS              LIABILITIES
                            -------------------   -------------------   -------------------
                             AMOUNT    % CHANGE    AMOUNT    % CHANGE    AMOUNT    % CHANGE
                            --------   --------   --------   --------   --------   --------
                                              (ALL AMOUNTS IN THOUSANDS)
<S>                         <C>        <C>        <C>        <C>        <C>        <C>
+200 basis points.........  $10,008       1.5%    $165,303     (3.1)%   $146,366     (1.0)%
+100 basis points.........  $ 9,937       0.7%    $169,973     (1.4)%   $147,081     (0.5)%
Static....................  $ 9,865       0.0%    $170,617      0.0%    $147,817      0.0%
-100 basis points.........  $ 9,793      (0.7)%   $176,124      2.2%    $148,603      0.5%
-200 basis points.........  $ 9,722      (1.5)%   $179,438      4.1%    $149,426      1.1%
</TABLE>

    Loans and certificates of deposit represent the majority of interest rate
exposure. Investments only represent 9.3% of interest earning assets and
therefore, the impact of the investments on net interest income of moving rates
would not be significant. Historically, savings and interest-bearing checking
accounts have not repriced in proportion to changes in overall market interest
rates. The change in net interest income can be attributed to the balance of
loans and certificates of deposit maturing/repricing. As a result, in an
increasing/decreasing interest rate environment net interest income would
increase/ decrease.

    The change in fair values of financial assets is mainly a result of total
loans representing 83.4% of total interest-earning assets. Of these loans
$97,584 have fixed interest rates, which decline in value during a period of
rising interest rates.

    As of September 30, 1999, Cowlitz has assessed these risks and feels that
there has been no material change since December 31, 1998.

    While asset/liability models have become a main focus of risk management,
Cowlitz believes that statistical models alone do not provide a reliable method
of monitoring and controlling risk. The quantitative risk information provided
is limited by the parameters established in creating the related models.
Therefore, Cowlitz uses these models only as a supplement to other risk
management tools.

LIQUIDITY

    Liquidity represents the ability to meet deposit withdrawals to fund loan
demand, while retaining the flexibility to take advantage of business
opportunities. Cowlitz' primary sources of funds are customer deposits, loan
payments, sales of assets, advances from the FHLB and the use of the federal
funds market. As of September 30, 1999, approximately $5.0 million of the
securities portfolio matures within one year.

    Historically Cowlitz has utilized borrowings from the FHLB as an important
source of funding for its growth. The Company has an established borrowing line
with the FHLB that permits it to borrow up to 25% of assets. Advances from the
FHLB have terms ranging from 1 through 15 years and at September 30, 1999, bear
interest at rates from 5.67% to 8.80%. At September 30, 1999, $26.3 million

                                      A-29
<PAGE>
in advances were outstanding from the FHLB and Cowlitz' had additional borrowing
capacity for cash advances of $18.1 million. Cowlitz may increase its percentage
of borrowings from the FHLB in the future if circumstances warrant.

CAPITAL

    Cowlitz is required to maintain minimum amounts of capital to "risk
weighted" assets, as defined by banking regulators. The Company is required to
have Tier 1 and Total Capital ratios of 4.0% and 8.0%, respectively. At
September 30, 1999, Cowlitz' ratios were 19.62% and 20.87%, respectively. At
December 31, 1998, Cowlitz' ratios were 22.21% and 23.46%, respectively. The
ratio of Tier 1 capital to average assets was 16.00% and 15.81% at
September 30, 1999 and December 31, 1998, respectively.

YEAR 2000

    This section constitutes a Year 2000 readiness statement and contains
forward-looking statements that have been prepared on the basis of Cowlitz' best
judgments and currently available information. These forward-looking statements
are inherently subject to significant business, third party and regulatory
uncertainties and contingencies, many of which are beyond the control of
Cowlitz. In addition, these forward-looking statements are based on Cowlitz'
current assessments and remediation plans, which are based on certain
representations of third party service providers and are subject to change.
Accordingly, there can be no assurance that Cowlitz' results of operations will
not be adversely affected by difficulties or delays in Cowlitz' or third
parties' Year 2000 readiness efforts. See "Risks" below for a discussion of
factors that may cause such forward-looking statements to differ from actual
results.

    The Company has an active Y2K plan and committee addressing all systems
affected by the millennium issue. The plan includes five phases Awareness,
Assessment, Renovation, Validation, and Implementation.

    AWARENESS.  Cowlitz' senior management participates on the committee as well
as a representative from each critical area of Cowlitz Bank. The board of
directors is updated on the progress of the plan on a monthly basis. The
awareness phase has been completed but will continue to be an on going effort in
regards to educating customers and keeping abreast of all new Year 2000 issues.
Cowlitz Bank has implemented several awareness programs for customers and has
sponsored Year 2000 seminars for its larger business customers.

    ASSESSMENT.  Assessment of Cowlitz' systems has been completed and all
hardware/software as well as non-hardware/software systems have been identified.
The committee has developed a list of products and systems that could be
affected by the Year 2000 date change. All vendors and suppliers have been
contacted and have been individually assessed for both their criticality to the
operation of Cowlitz and if they are satisfactory in their Year 2000 efforts.

    RENOVATION AND VALIDATION.  Cowlitz has completed the renovation and
validation phases of the project. All mission critical systems have been
validated for Year 2000.

    IMPLEMENTATION.  Any system found to be not in compliance with the Year 2000
date change has been brought to the attention of senior management and is being
upgraded or replaced. The systems that have been identified are included in
Cowlitz' Year 2000 budget. A budget has been approved and the additional costs
to address the Year 2000 issues at this time are estimated to be $268,000. The
Year 2000 related costs incurred by Cowlitz through September 30, 1999 are
approximately $226,000.

    CONTINGENCY PLAN.  A contingency plan has been established that would be
carried out in the event that the preventative measures put in place do not
prove successful. Each area of Cowlitz has completed a mission critical
operating plan that would be initiated using manual processing. In the

                                      A-30
<PAGE>
event that this plan would need to be implemented there would be a substantial
increase in staffing and related expenses. This plan addresses business
operations to be carried out assuming the telephone and electrical systems are
in working order. The contingency plan will continue to be updated throughout
1999.

    RISKS.  Cowlitz has attempted to assess the Year 2000 readiness of its loan
and deposit customers. If these customers were adversely affected by the Year
2000, no assurance can be given that their ability to repay debt would not be
affected.

    Based on its current assessments and remediation plans, Cowlitz does not
expect that it will suffer any material disruption of its business as a result
of Year 2000 issues. Although Cowlitz has no reason to believe that a material
disruption will occur, the most likely worst case scenario would result from a
Y2K failure in the power supply, voice and data transmission systems or the
federal government. If such a failure were to occur, Cowlitz would implement its
contingency plan. In such event, it is likely that there would be temporary
disruption of customer service and customer inconvenience and additional costs
from the implementation of the contingency plan. It is not possible to quantify
those costs at the present time. Although Cowlitz believes its contingency plan
will satisfactorily address these issues, there can be no assurance that
Cowlitz' contingency plan will function as anticipated or that the results of
operations of Cowlitz will not be adversely affected in the event of a prolonged
disruption of service.

                                      A-31
<PAGE>
PRINCIPAL HOLDERS OF COWLITZ COMMON STOCK; SECURITY OWNERSHIP OF CERTAIN
  BENEFICIAL OWNERS AND MANAGEMENT

    The following table shows, as of September 30, 1999, the number and
percentage of outstanding shares of Cowlitz common stock beneficially owned by
each person known to Cowlitz to be the beneficial owner of more than five
percent of the outstanding Cowlitz common stock, by each director and executive
officer of Cowlitz, and by all directors and executive officers of Cowlitz as a
group. The number of shares beneficially owned is deemed to include shares of
Cowlitz common stock as to which the beneficial owner has either investment or
voting power. Unless otherwise indicated, and except for voting and investment
powers held jointly with a person's spouse, the persons and entities named in
the table have sole voting and investment power with respect to all shares of
common stock shown as beneficially owned by them.

<TABLE>
<CAPTION>
                                                              SHARES(2)   PERCENTAGE(2)
                                                              ---------   -------------
<S>                                                           <C>         <C>
DIRECTORS AND EXECUTIVE OFFICERS(1)
Benjamin Namatinia(3).......................................    610,282       14.63
Charles W. Jarrett(3).......................................    295,615        7.09
Mark F. Andrews, Jr.(4).....................................     38,065           *
Larry M. Larson(4)..........................................    251,214        6.14
E. Chris Searing(4).........................................     20,267           *
Donna P. Gardner(5).........................................     47,662        1.17
Don P. Kiser(5).............................................      1,885           *
All directors and executive officers as a group (7
  persons)..................................................  1,264,990       29.69
5% BENEFICIAL OWNERS
Everest Partners, L.P.(6)...................................    235,150        5.75
Job's Peak Ranch
P.O. Box 3178
Gardnerville, Nevada 89410
</TABLE>

------------------------

*   Less than 1%

(1) Unless otherwise indicated, the address of each shareholder is care of
    Cowlitz Bancorporation,
    927 Commerce Avenue, Longview, WA 98632.

(2) Calculated pursuant to Rule 13d-3(d) under the Securities Exchange Act of
    1934, as amended. Shares not outstanding that are subject to options
    exercisable by the holder thereof within 60 days of September 30, 1999 are
    deemed outstanding for the purposes of calculating the number and percentage
    owned by such shareholder, but not deemed outstanding for the purpose of
    calculating the percentage owned by each other shareholder listed. Unless
    otherwise noted, all shares listed as beneficially owned by a shareholder
    are actually outstanding.

(3) Includes options exercisable to purchase 82,500 shares of common stock
    within 60 days of September 30, 1999.

(4) Includes options exercisable to purchase 1,000 shares of common stock within
    60 days of September 30, 1999.

(5) Includes options exercisable to purchase 1,400 shares of common stock within
    60 days of September 30, 1999.

(6) Information as to the number of shares owned is based solely on the
    Schedule 13G filed on September 8, 1999 by Everest Partners, L.P., Everest
    Partners, Inc., and Everest Managers, L.L.C. in which the filing persons
    disclosed that they had shared voting and dispositive power over 235,150
    shares of Cowlitz common stock. Everest Partners, Inc. is the general
    partner of, and

                                      A-32
<PAGE>
    Everest Managers, L.L.C. is the manager of, Everest Partners, L.P. David
    M.W. Harvey is the sole principal of Everest Partners, Inc. and Everest
    Managers, L.L.C. Everest Managers, L.L.C. and David M.W. Harvey expressly
    disclaim beneficial ownership of these shares.

DIRECTORS AND EXECUTIVE OFFICERS

    The following table sets forth certain information regarding Cowlitz
Bancorp's directors and executive officers.

<TABLE>
<CAPTION>
NAME                               AGE                                POSITION
----                             --------   ------------------------------------------------------------
<S>                              <C>        <C>
Mark F. Andrews, Jr............     66      Director, Cowlitz Bancorporation & Cowlitz Bank
Charles W. Jarrett.............     58      President & Chief Operating Officer & Director, Cowlitz
                                            Bancorporation; President & Chief Executive Officer &
                                            Director, Cowlitz Bank; Director, Business Finance
                                            Corporation
Larry M. Larson................     60      Director, Cowlitz Bancorporation; Chairman, Cowlitz Bank
Benjamin Namatinia.............     55      Chairman & Chief Executive Officer, Cowlitz Bancorporation;
                                            Director, Cowlitz Bank; Chairman, Business Finance
                                            Corporation
E. Chris Searing...............     45      Director, Cowlitz Bancorporation & Cowlitz Bank
Donna P. Gardner...............     51      Executive Vice President and CFO, Cowlitz Bank; Vice
                                            President & Secretary, Tresurer, Cowlitz Bancorporation
Don P. Kiser...................     53      Senior Vice President of Cowlitz Bank; Vice President and
                                            CFO, Cowlitz Bancorporation
</TABLE>

    Mark F. Andrews, Jr. has served as a director of Cowlitz Bank since 1988 and
as Secretary of the Board since 1990. Mr. Andrews' principal occupation is the
management and operation of his tree farms. In addition, Mr. Andrews serves as a
court commissioner for Cowlitz County and he is also a retired attorney.
Mr. Andrews is Chairman of the Audit Committee and serves on the Compensation
Committee and the Board Development Committee.

    Charles W. Jarrett held the position of President and Chief Executive
Officer of Cowlitz Bancorporation from 1992 until November 1994, at which time
he became President and Chief Operating Officer. Mr. Jarrett joined Cowlitz Bank
in 1986 and has served as President and Chief Executive Officer and as a
director since 1989. He has served as a director of Business Finance Corporation
since the acquisition in 1998.

    Larry M. Larson has served as a director of Cowlitz Bank since 1984. He
served as Secretary of the Board from 1987 to 1988, Vice Chairman from 1988 to
1990, and has served as Chairman since 1990. Mr. Larson owns the Bridgeview
Tobacco Shop located in Rainier, Oregon. He serves in an elected position on the
Port Commission for the Port of Longview. Mr. Larson serves on the Compensation
Committee, the Board Development Committee, and the Audit Committee.

    Benjamin Namatinia has served as Chairman of Cowlitz Bancorporation since
its incorporation in 1991 and was appointed Chief Executive Officer in
November 1994. He has served as a director of Cowlitz Bank since 1991. He has
served as a director of Business Finance Corporation since the acquisition in
1998. Since 1990, Mr. Namatinia has been the President and owner of BMN, Inc., a
securities brokerage franchise of Raymond James Financial Services, Inc. From
1984 to 1989, he was Senior Vice President and head of the Bond Department in
Portland, Oregon for Shearson Lehman.

    E. Chris Searing has served as a director of Cowlitz Bank since 1986. He
served as Secretary of the Board from 1988 to 1990 and has served as Vice
Chairman since 1990. Mr. Searing owns Searing Electric & Plumbing, Inc. located
in Longview, Washington. Mr. Searing serves on the Compensation Committee and
the Audit Committee.

                                      A-33
<PAGE>
    Donna P. Gardner has served as an executive officer of Cowlitz
Bancorporation since its incorporation in 1991 and currently holds the position
of Vice President and Secretary/Treasurer. Mrs. Gardner joined Cowlitz Bank in
1981 and served as Cashier from 1989 to 1993, Vice President from 1993 to 1997
and is currently serving as Executive Vice President and Chief Financial
Officer.

    Don P. Kiser was hired in September 1998 to serve as Vice President--Chief
Financial Officer of Cowlitz Bancorporation. In addition, Mr. Kiser serves as a
Senior Vice President of Cowlitz Bank. Mr. Kiser came to Cowlitz Bank with over
20 years of banking experience having previously served in positions of Chief
Financial Officer, Chief Administrative Officer, Director of Systems Management
and Corporate Planning, and V.P. Manager of Operations.

EXECUTIVE COMPENSATION

    SUMMARY COMPENSATION TABLE.  The following table sets forth the annual
compensation earned during 1997 and 1998 for the Company's Chief Executive
Officer and each of the Company's other executive officers who earned in excess
of $100,000 in salary and bonus during the last two fiscal years (the "Named
Executive Officers").

<TABLE>
<CAPTION>
                                                                                                        STOCK
                                                                      OTHER ANNUAL      ALL OTHER       OPTION
NAME OF PRINCIPAL AND POSITION                   SALARY     BONUS     COMPENSATION   COMPENSATION(1)    GRANTS
------------------------------                  --------   --------   ------------   ---------------   --------
<S>                                  <C>        <C>        <C>        <C>            <C>               <C>
Benjamin Namatinia................     1998     $200,000   $75,000        --             $14,400        10,000
  Chairman &                           1997     $178,224   $20,000        --             $14,258       192,500
  Chief Executive Officer
Charles W. Jarrett................     1998     $200,000   $52,356        --             $14,400        10,000
  President &                          1997     $161,532   $40,975        --             $12,923       192,500
  Chief Operating Officer
Jim Wills(2)......................     1998     $105,455   $13,678        --             $ 8,436         4,000
  Vice President                       1997     $ 98,556   $24,585        --             $ 7,884            --
Donna P. Gardner..................     1998     $ 76,340   $23,678        --             $ 6,108         7,000
  Vice President &                     1997     $ 66,840   $21,390        --             $ 5,347            --
  Secretary/Treasurer
</TABLE>

------------------------

(1) Company contribution to 401(K) plan

(2) Resigned as of September 19, 1999.

    STOCK OPTIONS.

    Awards of stock options under the Company's stock option plan are designed
to closely tie together the long term interest of the Company and its
subsidiary's directors, employees, and shareholders and to assist in the
retention of directors, officers, and key employees. The Board of Directors
selects the individuals to receive stock options and determines the number of
shares subject to each grant. The Board's determination of the size of option
grants is generally intended to reflect the individual's position with the
Company or its subsidiary and the individual's contribution. Any options granted
under the plan will have an exercise period of time, and options become
exercisable on a gradual basis as stated in each grant. The Board of Directors
reviews the stock option plan annually.

                                      A-34
<PAGE>
    The following table sets forth information concerning the award of stock
options to the Named Executive Officers during fiscal 1998.

<TABLE>
<CAPTION>
                                                                                              POTENTIAL REALIZABLE
                                                                                                VALUE AT ASSUMED
                                                                                                ANNUAL RATES OF
                                     NUMBER OF      % OF TOTAL                                       STOCK
                                     SECURITIES    OPTIONS/SARS                                PRICE APPRECIATION
                                     UNDERLYING     GRANTED TO    EXERCISE OR                         FOR
                                    OPTIONS/SARS    EMPLOYEES         BASE       EXPIRATION      OPTION TERM(1)
NAME                                GRANTED (#)    FISCAL YEAR    PRICE ($/SH)      DATE          5%($)/10%($)
----                                ------------   ------------   ------------   ----------   --------------------
<S>                                 <C>            <C>            <C>            <C>          <C>
Benjamin Namatinia................     10,000          16.4%         $7.94        12/31/08     $129,344/$205,943
Charles W. Jarrett................     10,000          16.4%         $7.94        12/31/08     $129,344/$205,943
Jim Wills(2)......................      4,000           6.5%         $7.94        12/31/08       $51,755/$82,360
Donna P. Gardner..................      7,000          11.5%         $7.94        12/31/08      $90,533/$144,130
</TABLE>

------------------------

(1) These assumed rates of appreciation are provided in order to comply with the
    requirements of the Securities and Exchange Commission (the "SEC") and do
    not represent the Company's expectation or projections as to the actual rate
    of appreciation of the Common Stock. These gains are based on assumed rates
    of annual compound stock price appreciation of 5% and 10% from the date
    options were granted over the full option term. The actual value of the
    options will depend on the performance of the Common Stock and may be
    greater or less than the amounts shown.

(2) Resigned as of September 19, 1999.

    The table below provides information on exercises of options during 1998 by
the Named Executive Officers and information with respect to unexercised options
held by the Named Executive Officers at December 31, 1998:

    AGGREGATED OPTION/SAR EXERCISES IN LAST FISCAL YEAR AND FISCAL YEAR-END
                               OPTION/SAR VALUES

<TABLE>
<CAPTION>
                                                                    NUMBER OF SECURITIES
                                                                         UNDERLYING        VALUE OF UNEXERCISED
                                                                        UNEXERCISED            IN-THE-MONEY
                                                                      OPTIONS/SARS AT        OPTIONS/SARS AT
                                                                    FISCAL YEAR-END (#)    FISCAL YEAR-END ($)
                              SHARES ACQUIRED                           EXERCISABLE/           EXERCISABLE/
NAME                          ON EXERCISE (#)   VALUE REALIZED($)      UNEXERCISABLE         UNEXERCISABLE(1)
----                          ---------------   -----------------   --------------------   --------------------
<S>                           <C>               <C>                 <C>                    <C>
Benjamin Namatinia..........      --                 --                82,500/120,000       $639,170/$952,800
Charles W. Jarrett..........      --                 --                82,500/120,000       $639,170/$952,800
Jim Wills(1)................      --                 --                     800/3,200                      --
Donna Gardner...............      --                 --                   1,400/5,600                      --
</TABLE>

------------------------

(1) Resigned as of September 19, 1999.

EMPLOYMENT AGREEMENTS

    Messrs. Namatinia and Jarrett entered into employment agreements with the
Company effective January 1, 1998. Under the employment agreements, both
Mr. Namatinia and Mr. Jarrett receive a base annual salary. Mr. Jarrett also
receives an annual cash bonus equal to the sum of five percent of Cowlitz Bank's
net profits in excess of a one percent Return on Average Assets (ROAA) for the
calendar year and seven and one-half percent of the Bank's net profits in excess
of one and one-half percent ROAA for the calendar year. This formula was used by
the Board of Directors to determine Mr. Jarrett's bonus in 1996 and 1997.
Mr. Namatinia's annual cash bonus will be determined by the Company's Board of
Directors based on the growth, profitability and performance of the Company, the
expansion of services provided by the Company and the market value of the
Company's Common

                                      A-35
<PAGE>
Stock. The agreements contain a covenant not to compete for a period of eighteen
months in the event of termination of employment for any reason. If employment
is terminated by the Company without cause or by death or disability, the
executive officer will receive a lump sum equal to three times the employee's
annual base salary for the calendar year in which such employment terminates
plus the amount of cash bonus earned prior to termination. Upon termination
without cause, the employee will receive such benefits to which he has become
entitled under the terms of the Company's Stock Option Plan and any other
benefit plan or program.

RELATED PARTY TRANSACTIONS

    The Company has outstanding loans to officers, directors, their spouses,
associates, and related organizations. All such loans were made in the ordinary
course of business, have been made on substantially the same terms and
conditions; including collateral required, as comparable transactions with
unaffiliated parties and did not involve more than the normal risk of
collectibility or present other unfavorable features. Directors and executive
officers are charged the same rates of interest and loan fees as are charged to
employees of the Company, which interest rates and fees are slightly lower than
charged to non-employee borrowers. All such loans are presently in good standing
and are being paid in accordance with their terms.

                                      A-36
<PAGE>
                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS

To the Shareholders and Board of Directors
of Cowlitz Bancorporation:

    We have audited the accompanying consolidated statements of condition of
Cowlitz Bancorporation (a Washington Corporation) and Subsidiaries as of
December 31, 1998 and 1997, and the related consolidated statements of income,
changes in shareholders' equity and cash flows for each of the three years in
the period ended December 31, 1998. These financial statements are the
responsibility of the Company's management. Our responsibility is to express an
opinion on these financial statements based on our audits.

    We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

    In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of Cowlitz Bancorporation and
Subsidiaries as of December 31, 1998 and 1997, and the results of their
operations and their cash flows for each of the three years in the period ended
December 31, 1998, in conformity with generally accepted accounting principles.

/s/ ARTHUR ANDERSEN LLP
Arthur Andersen LLP
Portland, Oregon
January 15, 1999

                                      A-37
<PAGE>
                    COWLITZ BANCORPORATION AND SUBSIDIARIES

                      CONSOLIDATED STATEMENTS OF CONDITION

               (IN THOUSANDS OF DOLLARS, EXCEPT NUMBER OF SHARES)

<TABLE>
<CAPTION>
                                                                 FOR THE
                                                               NINE MONTHS       FOR THE YEARS
                                                                  ENDED              ENDED
                                                              SEPTEMBER 30,      DECEMBER 31,
                                                              -------------   -------------------
                                                                  1999          1998       1997
                                                              -------------   --------   --------
                                                               (UNAUDITED)
<S>                                                           <C>             <C>        <C>
ASSETS
Cash and due from banks.....................................    $ 15,173      $ 22,705   $ 23,109
Investment securities:
  Investments available-for-sale (at fair value, cost of
    $8,484, $6,994 and $3,993 at September 30, 1999,
    December 31, 1998 and December 31, 1997,
    respectively)...........................................       8,462         7,065      4,017
  Investments held-to-maturity (at amortized cost, fair
    value of $4,370, $4,487, and $4,486 at September 30,
    1999, December 31, 1998 and December 31, 1997,
    respectively)...........................................       4,564         4,465      4,464
                                                                --------      --------   --------
    Total investment securities.............................      13,026        11,530      8,481
                                                                --------      --------   --------
Loans.......................................................     140,633       132,046    131,963
Allowance for loan losses...................................      (2,094)       (1,814)    (1,970)
                                                                --------      --------   --------
    Loans, net..............................................     138,539       130,232    129,993
                                                                --------      --------   --------
Premises and equipment, net of accumulated depreciation of
  $2,311 $1,837, $1,354 at September 30, 1999, December 31,
  1998 and December 31, 1997, respectively..................       6,011         5,859      5,653
Federal Home Loan Bank stock................................       3,035         2,869      2,658
Intangible assets, net of accumulated amortization of $717,
  $432 and $123 at September 30, 1999, December 31, 1998 and
  December 31, 1997, respectively...........................       5,062         3,110      1,847
Other assets................................................       1,900         2,040      1,552
                                                                --------      --------   --------
    Total assets............................................    $182,746      $178,345   $173,293
                                                                ========      ========   ========

LIABILITIES
Deposits:
  Demand....................................................    $ 28,099      $ 33,062   $ 27,141
  Savings and interest-bearing demand.......................      48,520        47,367     46,454
  Certificates of deposit...................................      46,241        41,932     62,614
                                                                --------      --------   --------
    Total deposits..........................................     122,860       122,361    136,209
Short-term borrowings.......................................         600         2,275        725
Long-term borrowings........................................      26,327        21,799     21,900
Other liabilities...........................................       1,120           990        572
                                                                --------      --------   --------
    Total liabilities.......................................    $150,907      $147,425   $159,406
                                                                --------      --------   --------
SHAREHOLDERS' EQUITY
Preferred stock, no par value; 5,000,000 and no shares
  authorized as of September 30, 1999, December 31, 1998 and
  December 31, 1997, respectively; no shares issued and
  outstanding at September 30, 1999, December 31, 1998 and
  December 31, 1997, respectively...........................    $     --      $     --   $     --
Common stock, no par value; 25,000,000 authorized as of
  September 30, 1999 and December 31, 1998 respectively, and
  3,937,500 shares authorized as of December 31, 1997.
  4,089,570, 4,001,999 and 2,604,543 shares issued and
  outstanding at September 30, 1999, December 31, 1998 and
  December 31, 1997, respectively...........................      18,887        18,251      3,262
Additional paid in capital..................................       1,538         1,538      1,538
Retained earnings...........................................      11,428        11,085      9,071
Accumulated other comprehensive income......................         (14)           46         16
                                                                --------      --------   --------
    Total shareholders' equity..............................      31,839        30,920     13,887
                                                                --------      --------   --------
    Total liabilities and shareholders' equity..............    $182,746      $178,345   $173,293
                                                                ========      ========   ========
</TABLE>

        The accompanying notes are an integral part of these statements.

                                      A-38
<PAGE>
                    COWLITZ BANCORPORATION AND SUBSIDIARIES

                       CONSOLIDATED STATEMENTS OF INCOME

              (IN THOUSANDS OF DOLLARS, EXCEPT PER SHARE AMOUNTS)

<TABLE>
<CAPTION>
                                                 FOR THE NINE MONTHS              FOR THE YEARS
                                                 ENDED SEPTEMBER 30,            ENDED DECEMBER 31,
                                              -------------------------   ------------------------------
                                                 1999          1998         1998       1997       1996
                                              -----------   -----------   --------   --------   --------
                                              (UNAUDITED)   (UNAUDITED)
<S>                                           <C>           <C>           <C>        <C>        <C>
INEREST INCOME
Interest and fees on loans..................    $11,110       $10,292     $14,103    $13,700    $12,721
Interest on taxable investment securities...        650           695         955        667        386
Interest on non-taxable investments
  securities................................          6             2           3         --          2
Trading account interest....................         --            --          --         --         34
Interest from other banks...................        680         1,085       1,305        719        490
                                                -------       -------     -------    -------    -------
  Total interest income.....................     12,446        12,074      16,366     15,086     13,633
                                                -------       -------     -------    -------    -------

INTEREST EXPENSE
Savings and interest-bearing demand.........      1,411         1,422       1,894      1,253      1,031
Certificates of deposit.....................      1,563         2,433       3,048      4,246      3,960
Short-term borrowings.......................         68            64          90         43        110
Long-term borrowings........................      1,148         1,035       1,469      1,401      1,073
                                                -------       -------     -------    -------    -------
  Total interest expense....................      4,190         4,954       6,501      6,943      6,174
                                                -------       -------     -------    -------    -------
  Net interest income before provision for
    loan losses.............................      8,256         7,120       9,865      8,143      7,459

PROVISION FOR LOAN LOSSES...................     (1,065)         (243)       (509)      (375)      (281)
                                                -------       -------     -------    -------    -------
  Net interest income after provision for
    loan losses.............................      7,191         6,877       9,356      7,768      7,178
                                                -------       -------     -------    -------    -------

NONINTEREST INCOME
Service charges on deposit accounts.........        511           487         656        563        387
Gains on loans sold.........................        294            --          --         --         --
Other income................................        397           242         317        186        218
Net gains/losses on sales of available for
  sale securities...........................         (2)            5           5         --       (309)
                                                -------       -------     -------    -------    -------
  Total noninterest income..................      1,200           734         978        749        296
                                                -------       -------     -------    -------    -------
NONINTEREST EXPENSE
Salaries and employee benefits..............      4,228         2,772       3,775      2,778      2,137
Net occupancy and equipment expense.........        980           655         888        724        393
Business tax expense........................        207           184         242        224        202
Amortization of intangibles.................        285           215         309        123         --
Other operating expense.....................      1,799         1,208       1,713      1,435        950
                                                -------       -------     -------    -------    -------
  Total noninterest expense.................      7,499         5,034       6,927      5,284      3,682
                                                -------       -------     -------    -------    -------
  Income before income tax expense..........        892         2,577       3,407      3,233      3,792

INCOME TAX EXPENSE..........................        341           876       1,181      1,109      1,295
                                                -------       -------     -------    -------    -------
  Net income................................    $   551       $ 1,701     $ 2,226    $ 2,124    $ 2,497
                                                =======       =======     =======    =======    =======

BASIC EARNINGS PER SHARE....................    $  0.14       $  0.47     $  0.60    $  0.82    $  0.97
DILUTED EARNINGS PER SHARE..................    $  0.13       $  0.44     $  0.57    $  0.78    $  0.97
</TABLE>

        The accompanying notes are an integral part of these statements.

                                      A-39
<PAGE>
                    COWLITZ BANCORPORATION AND SUBSIDIARIES

                     CONSOLIDATED STATEMENTS OF CASH FLOWS

                           (IN THOUSANDS OF DOLLARS)

<TABLE>
<CAPTION>
                                                            FOR THE NINE MONTHS       FOR THE YEARS ENDED DECEMBER
                                                            ENDED SEPTEMBER 30,                   31,
                                                         -------------------------   ------------------------------
                                                            1999          1998         1998       1997       1996
                                                         -----------   -----------   --------   --------   --------
                                                         (UNAUDITED)   (UNAUDITED)
<S>                                                      <C>           <C>           <C>        <C>        <C>
CASH FLOWS FROM OPERATING ACTIVITIES
  Net income...........................................    $   551      $  1,701     $  2,226   $  2,124   $  2,497
  Adjustments to reconcile net income to net cash
    provided by operating activities:
    Depreciation and amortization......................        759           601          833        557        191
    Provision for loan losses..........................      1,065           243          509        375        281
  Net losses (gains) on sales of trading securities....         --            --           --         --        309
  Net losses (gains) on sales of investments securities
    available-for-sale.................................          2            (5)          (5)        --         --
  Net amortization of investment security premiums and
    accretion of discounts.............................         (1)           (4)          (5)        (2)        (3)
  (Increase) decrease in other assets..................        278          (582)         182       (248)        49
  Increase (decrease) in other liabilities.............       (325)          168         (111)       (83)        87
  Federal Home Loan Bank stock dividends...............       (166)         (158)        (211)      (195)      (180)
  Purchase of trading securities.......................         --            --           --         --    (64,500)
  Sales of trading securities..........................         --            --           --         --     66,204
                                                           -------      --------     --------   --------   --------
    Net cash provided by operating activities..........      2,163         1,964        3,418      2,528      4,935
                                                           -------      --------     --------   --------   --------

CASH FLOWS FROM INVESTING ACTIVITIES
  Proceeds from maturities of investment securities
    held-to-maturity...................................      3,267         1,387        3,669      3,784      2,860
  Proceeds from maturities of investment securities
    available-for-sale.................................      2,000         1,000        1,000         --         --
  Purchases of investment securities:
    Held-to-maturity...................................     (3,365)       (3,565)      (3,665)    (1,994)    (2,969)
    Available-for-sale.................................     (3,492)       (3,996)      (3,996)    (4,857)    (2,006)
  Net (increase) decrease in loans.....................     (4,600)         (145)       1,065     (5,711)   (19,038)
  Purchases of premises and equipment..................       (510)         (631)        (725)    (1,300)    (2,797)
  Proceeds from assumption of deposit liabilities......         --            --           --     22,885         --
  Acquisition of business, net of cash acquired........     (1,504)       (1,575)      (1,776)        --         --
                                                           -------      --------     --------   --------   --------
    Net cash (used in) provided by investment
      activities.......................................     (8,204)       (7,525)      (4,428)    12,807    (23,950)
                                                           -------      --------     --------   --------   --------

CASH FLOWS FROM FINANCING ACTIVITIES
  Net increase (decrease) in demand, savings, and
    interest-bearing demand deposits...................     (3,810)          229        6,834      5,536     (1,207)
  Net increase (decrease) in certificates of deposit...      4,309       (17,719)     (20,682)   (17,841)    18,133
  Dividends paid.......................................       (208)         (153)        (212)      (126)      (101)
  Net increase (decrease) in short-term borrowings.....     (1,675)        1,225        1,550        175     (2,075)
  Proceeds from long-term borrowings...................      5,000            --        5,000      2,000     15,070
  Repayment of long-term borrowings....................     (4,766)       (1,213)      (6,408)    (2,942)    (4,621)
  Repurchase of common stock...........................       (363)         (494)        (494)        --         --
  Issuance of common stock for cash, net of amount paid
    for fractional shares and offering costs...........         22        15,019       15,018         67         19
                                                           -------      --------     --------   --------   --------
    Net cash provided by (used in) financing
      activities.......................................     (1,491)       (3,106)         606    (13,131)    25,218
                                                           -------      --------     --------   --------   --------
    Net increase (decrease) in cash and due from
      banks............................................     (7,532)       (8,667)        (404)     2,204      6,203

CASH AND DUE FROM BANKS AT BEGINNING OF YEAR...........     22,705        23,109       23,109     20,905     14,702
                                                           -------      --------     --------   --------   --------
CASH AND DUE FROM BANKS AT END OF PERIOD...............    $15,173      $ 14,442     $ 22,705   $ 23,109   $ 20,905
                                                           =======      ========     ========   ========   ========
</TABLE>

        The accompanying notes are an integral part of these statements.

                                      A-40
<PAGE>
                    COWLITZ BANCORPORATION AND SUBSIDIARIES

           CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY

               (IN THOUSANDS OF DOLLARS, EXCEPT NUMBER OF SHARES)

<TABLE>
<CAPTION>
                                            ACCUMULATED
                                     COMMON STOCK         ADDITIONAL                  OTHER            TOTAL
                               ------------------------    PAID-IN     RETAINED   COMPREHENSIVE    SHAREHOLDERS'   COMPREHENSIVE
                                SHARES        AMOUNT       CAPITAL     EARNINGS       INCOME          EQUITY           INCOME
                               ---------   ------------   ----------   --------   --------------   -------------   --------------
<S>                            <C>         <C>            <C>          <C>        <C>              <C>             <C>
BALANCE AT DECEMBER 31,
  1995.......................  2,585,608     $ 3,176        $1,538     $ 4,677         $ --           $ 9,391
Comprehensive Income:
  Net income.................         --          --            --       2,497           --             2,497          $2,497
  Net changes in unrealized
    gains on
    Investments
    available-for-sale, net
      of deferred taxes of
    $3.......................         --          --            --          --            7                 7               7
                                                                                                                       ------
  Other comprehensive income,
    net of tax...............         --          --            --          --           --                --               7
                                                                                                                       ------
  Comprehensive Income.......         --          --            --          --           --                --          $2,504
                                                                                                                       ======
Issuance of common stock for
  cash.......................      4,795          19            --          --           --                19
Cash dividend paid ($.04 per
  share).....................         --          --            --        (101)          --              (101)
                               ---------     -------        ------     -------         ----           -------
BALANCE AT DECEMBER 31,
  1996.......................  2,590,403       3,195         1,538       7,073            7            11,813
Comprehensive Income:
  Net income.................         --          --            --       2,124           --             2,124          $2,124
  Net changes in unrealized
    gains on investments
    available-for-sale, net
    of deferred taxes of $5..         --          --            --          --            9                 9               9
                                                                                                                       ------
  Other comprehensive income,
    net of tax...............         --          --            --          --           --                --               9
                                                                                                                       ------
  Comprehensive Income.......         --          --            --          --           --                --          $2,133
                                                                                                                       ======
Issuance of common stock for
  cash.......................     14,140          67            --          --           --                67
Cash dividend paid ($.05 per
  share).....................         --          --            --        (126)          --              (126)
                               ---------     -------        ------     -------         ----           -------
BALANCE AT DECEMBER 31,
  1997.......................  2,604,543       3,262         1,538       9,071           16            13,887
Comprehensive Income:
  Net income.................         --          --            --       2,226           --             2,226          $2,226
  Net changes in unrealized
    gains on investments
    available-for-sale, net
    of deferred taxes of
    $16......................         --          --            --          --           30                30              30
                                                                                                                       ------
  Other comprehensive income,
    net of tax...............         --          --            --          --           --                --              30
                                                                                                                       ------
  Comprehensive Income.......         --          --            --          --           --                --          $2,256
                                                                                                                       ======
  Issuance of common stock
    for cash.................  1,396,251      15,019            --          --           --            15,019
  Purchase of treasury
    stock....................    (50,000)       (494)           --          --           --              (494)
  Issuance of common stock
    for acquisition..........     51,282         465            --          --           --               465
  Cash dividends paid ($.06
    per share)...............         --          --            --        (212)          --              (212)
Cash paid for fractional
  shares.....................        (77)         (1)           --          --           --                (1)
                               ---------     -------        ------     -------         ----           -------
BALANCE AT DECEMBER 31,
  1998.......................  4,001,999      18,251         1,538      11,085           46            30,920
Comprehensive Income:
  Net income (unaudited).....         --          --            --         551           --               551          $  551
  Net changes in unrealized
    gains on investments
    available-for-sale, net
    of deferred taxes of $33
    (unaudited)..............         --          --            --          --          (60)              (60)            (60)
  Other comprehensive income,
    net of tax (unaudited)...         --          --            --          --           --                --             (60)
                                                                                                                       ------
  Comprehensive Income
    (unaudited)..............         --          --            --          --           --                --          $  491
                                                                                                                       ======
  Issuance of common stock
    for cash (unaudited).....      3,261          22            --          --           --                22
  Purchase of treasury stock
    (unaudited)..............    (64,500)       (363)           --          --           --              (363)
  Issuance of common stock
    for acquisition
    (unaudited)..............    148,810         977            --          --           --               977
  Cash dividends paid ($.05
    per share) (unaudited)...         --          --            --        (208)          --              (208)
Cash paid for fractional
  shares (unaudited).........         --          --            --          --           --                --
                               ---------     -------        ------     -------         ----           -------
BALANCE AT SEPTEMBER 30,
  1999.......................  4,089,570     $18,887        $1,538     $11,428         $(14)          $31,839
                               =========     =======        ======     =======         ====           =======
</TABLE>

                                      A-41
<PAGE>
                    COWLITZ BANCORPORATION AND SUBSIDIARIES

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(AMOUNTS IN THOUSANDS OF DOLLARS, EXCEPT NUMBER OF SHARES AND PER SHARE AMOUNTS)

1.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

NATURE OF OPERATIONS

    Cowlitz Bancorporation (the Company) is a one-bank holding company located
in Southwest Washington. The Company's principal subsidiary, Cowlitz Bank (the
Bank), a Washington state-chartered commercial bank, is the only community bank
headquartered in Cowlitz County and offers commercial banking services primarily
to small and medium-sized businesses, professionals, and retail customers.
During the third quarter of 1998 the Company acquired Business Finance
Corporation (BFC) of Bellevue, Washington. Business Finance Corporation provides
asset based financing to companies throughout the western United States.

PRINCIPLES OF CONSOLIDATION

    The accompanying consolidated financial statements include the accounts of
the Company and its subsidiaries. All significant intercompany transactions and
balances have been eliminated.

INVESTMENT SECURITIES

    Investment securities are classified as either trading, available-for-sale
or held-to-maturity. Securities are classified as held-to-maturity when the
Company has the positive intent and ability to hold those securities to
maturity. Securities that are bought and held principally for the purpose of
selling them in the near term are classified as trading securities. Securities
not classified as either held-to-maturity or trading are classified as
available-for-sale. Trading securities are carried at fair value. Net unrealized
gains and losses on trading securities are included in the consolidated
statements of income. Available-for-sale securities are carried at fair value
with unrealized gains and losses, net of tax effect, added to or deducted from
shareholders' equity. Held-to-maturity securities are carried at amortized cost.

LOANS

    Interest income on simple interest loans is accrued daily on the principal
balance outstanding. Generally, no interest is accrued on loans when factors
indicate that collection of interest is doubtful or when principal or interest
payments become 90 days past due, unless collection of principal and interest is
anticipated within a reasonable period of time and the loans are well secured.
For such loans, previously accrued but uncollected interest is charged against
current earnings, and income is only recognized to the extent that payments are
subsequently received and collection of the remaining recorded investment is
probable. Loan fees are offset against operating expenses to the extent that
these fees cover the direct expense of originating loans. Fees in excess of
origination costs are deferred and amortized to income over the related loan
period.

STOCK-BASED COMPENSATION

    Statement of Financial Accounting Standards (SFAS) No. 123, "Accounting for
Stock-Based Compensation," requires disclosure about stock-based compensation
arrangements regardless of the method used to account for them. As permitted by
SFAS No. 123, the Company has opted to continue to apply the accounting
provisions of Accounting Principles Board (APB) Opinion No. 25, and therefore
discloses the difference between compensation cost included in net income and
the related

                                      A-42
<PAGE>
                    COWLITZ BANCORPORATION AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(AMOUNTS IN THOUSANDS OF DOLLARS, EXCEPT NUMBER OF SHARES AND PER SHARE AMOUNTS)

1.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

cost measured by the fair-value-based method defined by SFAS No. 123, including
tax effects, that would have been recognized in the income statement if the
fair-value method has been used.

ALLOWANCE FOR LOAN LOSSES

    The allowance for loan losses is based on management's estimates. Management
determines the adequacy of the allowance based upon reviews of individual loans,
recent loss experience, current economic conditions, the risk characteristics of
the various categories of loans and other pertinent factors. Actual losses may
vary from the current estimates. These estimates are reviewed periodically and
are adjusted as deemed necessary. Loans deemed uncollectible are charged to the
allowance. Provisions for loan losses and recoveries on loans previously charged
off are added to the allowance.

    A loan is impaired when, based on current information and events it is
probable that the Company will be unable to collect all amounts due according to
the contractual terms of the loan agreement. The Company's policy is to included
in impaired loans all loans that are past due 90 days or more as to either
principal or interest, except for loans that are currently measured at fair
value or at the lower of cost or fair value, and credit card receivables, which
are considered large groups of smaller balance homogeneous loans that are
collectively evaluated for impairment. The Company measures impairment based on
the present value of expected future cash flows discounted at the loan's
effective interest rate or, as a practical expedient, impairment is measured
based on the loan's observable market price or the fair value of the collateral
if the loan is collateral dependent. Impaired loans are charged to the allowance
when management believes, after considering economic and business conditions,
collection efforts, and collateral position, that the borrowers' financial
condition is such that collection of principal is not probable.

PREMISES AND EQUIPMENT

    Premises and equipment are stated at cost less accumulated depreciation. The
provision for depreciation is computed on the straight-line method over the
estimated useful lives for the majority of the assets, which range from 3 to
39.5 years.

    Improvements are capitalized and depreciated over the lesser of their
estimated useful lives or the life of the lease. When property is replaced or
otherwise disposed of, the cost of such assets and the related accumulated
depreciation are removed from their respective accounts.

INTANGIBLE ASSETS

    Intangible assets include a deposit premium of $1,570 and $1,847 (net of
accumulated amortization) at December 31, 1998 and 1997, respectively. The
deposit premium is being amortized using an accelerated method over a ten-year
life. Intangible assets at December 31, 1998 also include goodwill of $1,540
(net of accumulated amortization), representing the excess of acquisition costs
over the fair value of net assets that arose in connection with the acquisition
of Business Finance Corporation and is being amortized on a straight-line basis
over a fifteen-year period.

                                      A-43
<PAGE>
                    COWLITZ BANCORPORATION AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(AMOUNTS IN THOUSANDS OF DOLLARS, EXCEPT NUMBER OF SHARES AND PER SHARE AMOUNTS)

1.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

OTHER BORROWINGS

    Federal funds purchased generally mature within one to four days from the
transaction date. Other short-term borrowed funds mature within one year from
the transaction date. Other long-term borrowed funds extend beyond one year.

INCOME TAXES

    Income taxes are accounted for using the asset and liability method. Under
this method, a deferred tax asset or liability is determined based on the
enacted tax rates, which will be in effect when the differences between the
financial statement carrying amounts and tax bases of existing assets and
liabilities are expected to be reported in the Company's income tax returns. The
deferred tax provision for the year is equal to the net change in the deferred
tax asset or liability from the beginning to the end of the year, less amounts
applicable to the change in value related to investments available-for-sale. The
effect on deferred taxes of a change in tax rates is recognized in income in the
period that includes the enactment date.

EARNINGS PER SHARE

    Earnings per share computations are computed using the weighted average
number of common and dilutive common equivalent shares (stock options) assumed
to be outstanding during the period using the treasury stock method.

    The following table reconciles the numerator and denominator of the basic
and diluted earnings per share computations:

<TABLE>
<CAPTION>
                                                             WEIGHTED    PER SHARE
                                               NET INCOME   AVG SHARES    AMOUNT
                                               ----------   ----------   ---------
<S>                                            <C>          <C>          <C>
FOR THE YEAR ENDED DECEMBER 31, 1998
Basic earnings per share.....................    $2,226     3,715,901      $0.60
Stock Options................................                 178,194
Diluted earnings per share...................    $2,226     3,894,095      $0.57

FOR THE YEAR ENDED DECEMBER 31, 1997
Basic earnings per share.....................    $2,124     2,601,650      $0.82
Stock Options................................                 109,862
Diluted earnings per share...................    $2,124     2,711,512      $0.78

FOR THE YEAR ENDED DECEMBER 31, 1996
Basic earnings per share.....................    $2,497     2,586,711      $0.97
Stock Options................................                      --
Diluted earnings per share...................    $2,497     2,586,711      $0.97
</TABLE>

    The Company for the periods reported had no reconciling items between net
income and income available to common shareholders.

                                      A-44
<PAGE>
                    COWLITZ BANCORPORATION AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(AMOUNTS IN THOUSANDS OF DOLLARS, EXCEPT NUMBER OF SHARES AND PER SHARE AMOUNTS)

1.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

SUPPLEMENTAL CASH FLOW INFORMATION

    For the purpose of presentation in the statements of cash flows, cash and
cash equivalents are defined as those amounts in the balance sheet caption "Cash
and due from banks" and include cash on hand, amounts due from banks and federal
funds sold. Federal funds sold generally mature the day following purchase.

USE OF ESTIMATES IN THE PREPARATION OF FINANCIAL STATEMENTS

    The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make certain estimates and
assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amounts of revenues and expenses during the
reporting period. Actual results could differ from those estimates.

OFF-BALANCE-SHEET FINANCIAL INSTRUMENTS

    In the ordinary course of business, the Company has entered into
off-balance-sheet financial instruments consisting of commitments to extend
credit, commitments under credit card arrangements and standby letters of
credit. Such financial instruments are recorded in the financial statements when
they become payable.

RECENTLY ISSUED ACCOUNTING STANDARDS

SAB No. 98

    In February 1998, the Securities and Exchange Commission (SEC) issued Staff
Accounting Bulletin (SAB) No. 98 on computations of earnings per share. SAB
No. 98, which was effective upon issuance, revised the SEC's guidance on the
treatment of stock options issued shortly before an Initial Public Offering
(IPO) in earnings per share calculations. Prior to the issuance of SAB No. 98,
the SEC required that stock options issued within one year of an IPO with
exercise prices below the IPO price be treated as outstanding for all reporting
periods for purposes of calculating earnings per share. The Company followed
this guidance for the stock options granted September 30, 1997 and, accordingly
treated the options as outstanding for all periods in computing both basic and
diluted earnings per share. SAB No. 98 now requires that only "nominal
issuances" of stock or stock options be reflected in all earnings per share
calculations for all periods presented. The Company's September 30, 1997, stock
options do not meet the SEC's definition of a nominal issuance. As required by
SAB No. 98, these stock options are now included in the calculation of diluted
earnings per share only for periods subsequent to their issuance on
September 30, 1997, and are not included in the basic earnings per share
calculation.

                                      A-45
<PAGE>
                    COWLITZ BANCORPORATION AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(AMOUNTS IN THOUSANDS OF DOLLARS, EXCEPT NUMBER OF SHARES AND PER SHARE AMOUNTS)

1.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

    As required by SAB No. 98, the Company has restated its historical basic and
diluted earnings per share to conform with this new guidance. The following is a
summary of the historical and restated earnings per share amounts:

<TABLE>
<CAPTION>
                                             YEAR ENDED            YEAR ENDED
                                          DECEMBER 30, 1997     DECEMBER 30, 1996
                                         -------------------   -------------------
                                          BASIC     DILUTED     BASIC     DILUTED
                                         --------   --------   --------   --------
<S>                                      <C>        <C>        <C>        <C>
Previously reported EPS................   $0.76      $0.76      $0.90      $0.90
Restated EPS...........................   $0.82      $0.78      $0.97      $0.97
</TABLE>

SFAS No. 133

    In June 1998, the Financial Accounting Standards Board issued SFAS No. 133,
"Accounting for Derivative Instruments and Hedging Activities." The Statement
establishes accounting and reporting standards requiring that derivative
instruments (including certain derivative instruments embedded in other
contracts) be recorded in the balance sheet as either an asset or a liability
measured at its fair value. The Statement requires that changes in the
derivative's fair value be recognized currently in earnings unless specific
hedge accounting criteria are met. Special accounting for qualifying hedges
allows a derivative's gain and losses to offset related results on the hedged
item in the income statement, and requires that a company must formally
document, designate, and assess the effectiveness of transactions that receive
hedge accounting.

    SFAS No. 133 is effective for fiscal years beginning after June 15, 1999. A
company may also implement the Statement as of the beginning of any fiscal
quarter after issuance (that is, fiscal quarters beginning June 16, 1998 and
thereafter). SFAS No. 133 cannot be applied retroactively. SFAS No. 133 must be
applied to (a) derivative instruments and (b) certain derivative instruments
embedded in hybrid contracts that were issued, acquired, or substantively
modified after December 31, 1997 (and, at the company's election, before
January 1, 1998).

    The implementation of this Statement is not expected to have a material
impact on the Company's financial position or results of operation.

COMPREHENSIVE INCOME

    The Company has adopted Statement of Financial Accounting Standards No. 130
"Reporting Comprehensive Income," effective January 1, 1998. This statement
establishes standards for the reporting and display of comprehensive income and
it's components in the financial statements. For the Company, comprehensive
income includes net income reported on the statements of income and changes in
the fair value of its available-for-sale investments reported as a component of
shareholders' equity.

                                      A-46
<PAGE>
                    COWLITZ BANCORPORATION AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(AMOUNTS IN THOUSANDS OF DOLLARS, EXCEPT NUMBER OF SHARES AND PER SHARE AMOUNTS)

1.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

    The components of comprehensive income for the years ended December 31,
1998, 1997 and 1996 are as follows:

<TABLE>
<CAPTION>
                                                            1998       1997       1996
                                                          --------   --------   --------
<S>                                                       <C>        <C>        <C>
Unrealized gain (loss) arising during the period, net of
  tax...................................................    $ 33       $  9       $  7
Reclassification adjustment for net realized gains
  (losses) on securities available-for-sale included in
  net income during the year, net of tax of $2, $0, and
  $0....................................................       3         --         --
                                                            ----       ----       ----
  Net unrealized gain included in other comprehensive
    income..............................................    $ 30       $  9       $  7
                                                            ====       ====       ====
</TABLE>

PRIOR YEAR RECLASSIFICATIONS

    Certain prior year amounts have been reclassified to conform with the
current year presentation.

2.  INVESTMENT SECURITIES

    The amortized cost and estimated fair values of investment securities at
December 31 are shown below:

<TABLE>
<CAPTION>
DECEMBER 31, 1998
                                                                     AVAILABLE-FOR-SALE
                                                       -----------------------------------------------
                                                                     GROSS        GROSS      ESTIMATED
                                                       AMORTIZED   UNREALIZED   UNREALIZED     FAIR
                                                         COST        GAINS        LOSSES       VALUE
                                                       ---------   ----------   ----------   ---------
<S>                                                    <C>         <C>          <C>          <C>
U.S. Government and agency securities................   $6,994        $ 71         $ --       $7,065
                                                        ------        ----         ----       ------
  Total..............................................   $6,994        $ 71         $ --       $7,065
                                                        ======        ====         ====       ======
</TABLE>

<TABLE>
<CAPTION>
                                                                      HELD-TO-MATURITY
                                                       -----------------------------------------------
                                                                     GROSS        GROSS      ESTIMATED
                                                       AMORTIZED   UNREALIZED   UNREALIZED     FAIR
                                                         COST        GAINS        LOSSES       VALUE
                                                       ---------   ----------   ----------   ---------
<S>                                                    <C>         <C>          <C>          <C>
Municipal Bonds......................................   $  199        $ --         $ --       $  199
U.S. Government and agency securities................      999          22           --        1,021
Certificates of deposit..............................    3,267          --           --        3,267
                                                        ------        ----         ----       ------
  Total..............................................   $4,465        $ 22         $ --       $4,487
                                                        ======        ====         ====       ======
</TABLE>

                                      A-47
<PAGE>
                    COWLITZ BANCORPORATION AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(AMOUNTS IN THOUSANDS OF DOLLARS, EXCEPT NUMBER OF SHARES AND PER SHARE AMOUNTS)

2.  INVESTMENT SECURITIES (Continued)

<TABLE>
<CAPTION>
                  DECEMBER 31, 1997
                                                                     AVAILABLE-FOR-SALE
                                                       -----------------------------------------------
                                                                     GROSS        GROSS      ESTIMATED
                                                       AMORTIZED   UNREALIZED   UNREALIZED     FAIR
                                                         COST        GAINS        LOSSES       VALUE
                                                       ---------   ----------   ----------   ---------
<S>                                                    <C>         <C>          <C>          <C>
U.S. Government and agency securities................   $3,993        $ 24         $ --       $4,017
                                                        ------        ----         ----       ------
  Total..............................................   $3,993        $ 24         $ --       $4,017
                                                        ======        ====         ====       ======
</TABLE>

<TABLE>
<CAPTION>
                                                                      HELD-TO-MATURITY
                                                       -----------------------------------------------
                                                                     GROSS        GROSS      ESTIMATED
                                                       AMORTIZED   UNREALIZED   UNREALIZED     FAIR
                                                         COST        GAINS        LOSSES       VALUE
                                                       ---------   ----------   ----------   ---------
<S>                                                    <C>         <C>          <C>          <C>
U.S. Government and agency securities................   $2,978        $ 22         $ --       $3,000
Certificates of deposit..............................    1,486          --           --        1,486
                                                        ------        ----         ----       ------
  Total..............................................   $4,464        $ 22         $ --       $4,486
                                                        ======        ====         ====       ======
</TABLE>

    Gross gains of $5, $0, and $379 and gross losses of $0, $0, and $688 were
realized on sales of trading and available-for-sales securities in 1998, 1997,
and 1996, respectively. There were no sales of held-to-maturity securities.

MATURITY OF INVESTMENTS

    The carrying amount and estimated fair value of debt securities by
contractual maturity at December 31, 1998, are shown below. Expected maturities
may differ from contractual maturities because borrowers may have the right to
call or prepay the obligation.

<TABLE>
<CAPTION>
                                                         AVAILABLE-FOR-SALE        HELD-TO-MATURITY
                                                       ----------------------   ----------------------
                                                       AMORTIZED   ESTIMATED    AMORTIZED   ESTIMATED
                                                         COST      FAIR VALUE     COST      FAIR VALUE
                                                       ---------   ----------   ---------   ----------
<S>                                                    <C>         <C>          <C>         <C>
Due in one year or less..............................   $2,002       $2,008      $3,267       $3,267
Due after one year through five years................    4,992        5,057       1,099        1,121
Due after five years through fifteen years...........       --           --          99           99
                                                        ------       ------      ------       ------
  Total..............................................   $6,994       $7,065      $4,465       $4,487
                                                        ======       ======      ======       ======
</TABLE>

    At December 31, 1998 and 1997 a security with a par value of $1 million was
pledged to secure the treasury, tax and loan account at the Federal Reserve.
Another security with a par value of $1 million was pledged for trust deposits
held in the Bank.

                                      A-48
<PAGE>
                    COWLITZ BANCORPORATION AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(AMOUNTS IN THOUSANDS OF DOLLARS, EXCEPT NUMBER OF SHARES AND PER SHARE AMOUNTS)

3.  LOANS AND ALLOWANCE FOR LOAN LOSSES

    The loan portfolio as of December 31 consists of the following:

<TABLE>
<CAPTION>
                                                            1998       1997
                                                          --------   --------
<S>                                                       <C>        <C>
Commercial loans........................................  $103,473   $ 93,829
Real estate:
  Construction..........................................     3,206      3,495
  Mortgage..............................................    13,774     24,167
  Commercial............................................     7,026      5,475
Installment and other consumer..........................     5,063      5,571
Contracts purchased.....................................        45         81
                                                          --------   --------
                                                           132,587    132,618

Less:
  Deferred loan fees....................................      (541)      (655)
  Allowance for loan losses.............................    (1,814)    (1,970)
                                                          --------   --------
      Total loans, net..................................  $130,232   $129,993
                                                          ========   ========
</TABLE>

    An analysis of the change in the allowance for loan losses for the years
ended December 31 is as follows:

<TABLE>
<CAPTION>
                                                        1998       1997       1996
                                                      --------   --------   --------
<S>                                                   <C>        <C>        <C>
Balance, beginning of year..........................   $1,970     $1,894     $1,763
  Provision for loan losses.........................      509        375        281
  Loans charged to the allowance....................     (727)      (324)      (158)
  Recoveries credited to the allowance..............       17         25          8
  Adjustment incident to acquisition................       45         --         --
                                                       ------     ------     ------
Balance, end of year................................   $1,814     $1,970     $1,894
                                                       ======     ======     ======
</TABLE>

    Loans on which the accrual of interest has been discontinued amounted to
approximately $2,737, $1,897, and $407 at December 31, 1998, 1997, and 1996,
respectively. Interest forgone on nonaccrual loans was approximately $297, $177,
and $41 in 1998, 1997, and 1996, respectively.

    At December 31, 1998 and 1997, the Company's recorded investment in certain
loans that were considered to be impaired was $2,736 and $2,270, respectively.
Of these impaired loans, $891 and $302 have related valuation allowances of $65
and $199, while $1,845 and $1,968 did not require a valuation allowance. The
balance of the allowance for loan losses in excess of these specific reserves is
available to absorb losses from all loans. The average recorded investment in
impaired loans for the years ended December 31, 1998, 1997, and 1996, was
approximately $2,420, $1,300, and $342, respectively. Interest payments received
on impaired loans are recorded as interest income, unless collection of the
remaining recorded investment is not probable, in which case payments received
are recorded as a reduction of principal. For the years ended December 31, 1998,
1997, and 1996 interest income recognized on impaired loans totaled $77, $36,
and $14, respectively, all of which was recognized on a cash basis.

                                      A-49
<PAGE>
                    COWLITZ BANCORPORATION AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(AMOUNTS IN THOUSANDS OF DOLLARS, EXCEPT NUMBER OF SHARES AND PER SHARE AMOUNTS)

4.  PREMISES AND EQUIPMENT

    Premises and equipment consist of the following at December 31:

<TABLE>
<CAPTION>
                                                              1998       1997
                                                            --------   --------
<S>                                                         <C>        <C>
Land......................................................  $   858    $   633
Buildings and improvements................................    4,415      4,208
Furniture and equipment...................................    2,386      2,157
Construction in process...................................       37          9
                                                            -------    -------
                                                              7,696      7,007
Accumulated depreciation..................................   (1,837)    (1,354)
                                                            -------    -------
  Total...................................................  $ 5,859    $ 5,653
                                                            =======    =======
</TABLE>

    Depreciation included in net occupancy and equipment expense amounted to
$524, $432, and $191 for the years ended December 31, 1998, 1997, and 1996,
respectively.

5.  BORROWINGS

    Short-term borrowings consist of Federal Funds purchased of $2,275 and $725
at December 31, 1998 and 1997, respectively.

<TABLE>
<CAPTION>
                                                                1998       1997
                                                              --------   --------
<S>                                                           <C>        <C>
Long-term borrowings consist of the following at December
  31:
  Notes payable to Federal Home Loan Bank; interest from
    5.17 percent to 8.80 percent at December 31, 1998,
    payable in monthly installments plus interest due 1999
    to 2013, secured by certain investment securities and
    mortgage loans..........................................  $21,738    $20,517

Note payable to a bank, due January 1999, paid in April
  1998; interest at prime plus 1 percent; interest not to
  fall below 8.5 percent or to exceed 14 percent
  (9.25 percent at December 1997); principal payable in
  annual installments; interest payable in quarterly
  installments, secured by bank stock.......................       --        319

Subordinated promissory notes of the Company, due February
  2000; interest at 8.5 percent; interest payable
  semiannually on June 30 and December 31...................       --      1,000

Contract payable to private party; interest 9.0 percent,
  payable in monthly installments plus interest through
  October 2010..............................................       61         64
                                                              -------    -------
  Total.....................................................  $21,799    $21,900
                                                              =======    =======
</TABLE>

                                      A-50
<PAGE>
                    COWLITZ BANCORPORATION AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(AMOUNTS IN THOUSANDS OF DOLLARS, EXCEPT NUMBER OF SHARES AND PER SHARE AMOUNTS)

5.  BORROWINGS (Continued)

    The aggregate maturities of notes payable subsequent to December 31, 1998,
are as follows:

<TABLE>
<S>                                                           <C>
1999........................................................  $   517
2000........................................................    5,933
2001........................................................    7,284
2002........................................................    2,184
2003........................................................      185
Thereafter..................................................    5,696
                                                              -------
                                                              $21,799
                                                              =======
</TABLE>

6.  INCOME TAXES

    The components of the provision for income taxes for the years ended
December 31 were as follows:

<TABLE>
<CAPTION>
                                                        1998       1997       1996
                                                      --------   --------   --------
<S>                                                   <C>        <C>        <C>
Current.............................................   $1,069     $1,044     $1,274
Deferred............................................      112         65         21
                                                       ------     ------     ------
  Total provision for income taxes..................   $1,181     $1,109     $1,295
                                                       ======     ======     ======
</TABLE>

    The federal statutory income tax rate and effective tax rate of the
provision do not vary significantly.

    The tax effect of temporary differences that give rise to deferred tax
assets and deferred tax liabilities at December 31 was as follows:

<TABLE>
<CAPTION>
                                                                1998       1997
                                                              --------   --------
<S>                                                           <C>        <C>
Deferred tax assets:
  Allowance for loan losses.................................   $ 522      $ 596
  Amortization of intangible assets.........................      84         23
  Loan origination fees.....................................      15         31
                                                               -----      -----
                                                                 621        650
                                                               -----      -----
Deferred tax liabilities:
  Cash-basis adjustments....................................      --        (29)
  Accumulated depreciation..................................     (91)       (67)
  Federal Home Loan Bank stock dividends....................    (469)      (396)
  Unrealized gains on available-for-sale securities.........     (24)        (8)
  Other.....................................................      --         (1)
                                                               -----      -----
                                                                (584)      (501)
                                                               -----      -----
Net deferred tax............................................   $  37      $ 149
                                                               =====      =====
</TABLE>

                                      A-51
<PAGE>
                    COWLITZ BANCORPORATION AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(AMOUNTS IN THOUSANDS OF DOLLARS, EXCEPT NUMBER OF SHARES AND PER SHARE AMOUNTS)

7.  CERTIFICATES OF DEPOSIT:

    Included in certificates of deposit are certificates in denominations of
$100 or greater totaling $13,623 and $18,633 at December 31, 1998 and 1997,
respectively. Interest expense relating to certificates of deposit in
denominations of $100 or greater was $933, $1,297, and $1,360 for the years
ended December 31, 1998, 1997, and 1996, respectively.

8.  SHAREHOLDERS EQUITY AND REGULATORY CAPITAL

    Dividends are paid by the Company from its retained earnings, which are
principally provided through dividends and income from its subsidiaries.
However, state agencies restrict the amount of funds the Company's subsidiaries
may transfer to the Company in the form of cash dividends, loans or advances.
Transfers are limited by the subsidiary's retained earnings, which for the Bank
were $10,159 at December 31, 1998.

    The Company and the Bank are subject to various regulatory capital
requirements as established by the applicable federal or state banking
regulatory authorities. Under capital adequacy guidelines and the regulatory
framework for prompt corrective action, the Company and the Bank must meet
specific capital guidelines that involve quantitative measures of the Bank's
assets, liabilities and certain off-balance-sheet items. The quantitative
measures for capital adequacy require the Company and the Bank to maintain
minimum amounts and ratios of total and Tier 1 capital to risk weighted assets
and of Tier 1 capital to average assets (leverage). The Company's capital
components, classification, risk weightings and other factors are also subject
to qualitative judgements by regulators. Failure to meet minimum capital
requirements can initiate certain actions by regulators that, if undertaken,
could have a material effect on the Company's financial statements. Management
believes that as of December 31, 1998, the Company and the Bank meet all minimum
capital adequacy requirements to which they are subject. The most recent
notification from the Federal Deposit Insurance Corporation categorized the Bank
as well-capitalized under the regulatory framework for prompt corrective action.
Management believes that no events or changes in conditions have occurred
subsequent to such notification to change the Bank's category.

                                      A-52
<PAGE>
                    COWLITZ BANCORPORATION AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(AMOUNTS IN THOUSANDS OF DOLLARS, EXCEPT NUMBER OF SHARES AND PER SHARE AMOUNTS)

8.  SHAREHOLDERS EQUITY AND REGULATORY CAPITAL (Continued)

    The following table presents selected capital information for the Company
(consolidated) and the Bank as of December 31, 1998 and 1997:

<TABLE>
<CAPTION>
                                                                                                   TO BE WELL
                                                                          FOR CAPITAL           CAPITALIZED UNDER
                                                                           ADEQUACY             PROMPT CORRECTIVE
                                                   ACTUAL                  PURPOSES             ACTION PROVISIONS
                                             -------------------      -------------------      -------------------
                                              AMOUNT     RATIO         AMOUNT     RATIO         AMOUNT     RATIO
                                             --------   --------      --------   --------      --------   --------
<S>                                          <C>        <C>           <C>        <C>           <C>        <C>
As of December 31, 1998

  Total risk-based capital:
    Consolidated...........................  $29,330     23.46%       $10,001      8.00%       $12,501     10.00%
    Bank...................................  $16,383     13.32%       $ 9,841      8.00%       $12,301     10.00%
  Tier 1 risk-based capital:
    Consolidated...........................  $27,764     22.21%       $ 5,000      4.00%       $ 7,501      6.00%
    Bank...................................  $14,842     12.07%       $ 4,921      4.00%       $ 7,381      6.00%
  Tier 1 (leverage) capital:
    Consolidated...........................  $27,764     15.81%       $ 7,026      4.00%       $ 8,782      5.00%
    Bank...................................  $14,842      8.72%       $ 6,806      4.00%       $ 8,507      5.00%

As of December 31, 1997

  Total risk-based capital:
    Consolidated...........................  $14,194     11.34%       $10,007      8.00%       $12,503     10.00%
    Bank...................................  $13,852     11.09%       $ 9,994      8.00%       $12,993     10.00%
  Tier 1 risk-based capital:
    Consolidated...........................  $12,025      9.61%       $ 5,003      4.00%       $ 7,505      6.00%
    Bank...................................  $12,285      9.83%       $ 4,997      4.00%       $ 7,496      6.00%
  Tier 1 (leverage) capital:
    Consolidated...........................  $12,025      6.94%       $ 7,002      4.00%       $ 8,752      5.00%
    Bank...................................  $12,285      7.12%       $ 6,898      4.00%       $ 8,623      5.00%
</TABLE>

9.  STOCK OPTION AND EMPLOYEE STOCK PURCHASE PLANS:

    During 1997, the Company adopted the 1997 Stock Option Plan (the 1997 Plan),
which authorizes up to 525,000 shares of common stock for issuance thereunder.
Under the 1997 Plan, options may be granted to the Company's employees,
directors and consultants. The exercise price of incentive stock options under
the 1997 Plan must be at least equal to the fair value of the common stock on
the date of grant. Options granted under the 1997 Plan will generally vest over
a five-year period, at the discretion of the compensation committee. All
incentive stock options granted under the 1997 Plan will expire ten years from
the date of grant unless terminated sooner pursuant to the provisions of the
1997 Plan. At December 31, 1998 and December 31, 1997, options to purchase a
total of 446,000 and 385,000 shares, respectively, have been granted under the
1997 plan to executives and directors of the Company and the Bank.

    The Company adopted an employee stock purchase plan during 1996. The Company
may sell up to 175,000 shares of common stock to its eligible employees under
the plan. During 1998, the Company

                                      A-53
<PAGE>
                    COWLITZ BANCORPORATION AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(AMOUNTS IN THOUSANDS OF DOLLARS, EXCEPT NUMBER OF SHARES AND PER SHARE AMOUNTS)

9.  STOCK OPTION AND EMPLOYEE STOCK PURCHASE PLANS: (Continued)

sold 5,301 shares of stock under the plan. The employee is granted the right to
purchase the stock at a price equal to fair value at the date of grant, as
determined by the Board of Directors. These grants are made to qualified
employees each quarter and expire within the month they are granted.

    A summary of option activity for the years ended December 31, 1998, 1997 and
1996 is as follows:

<TABLE>
<CAPTION>
                                                1998        1998        1997        1997        1996        1996
                                               COMMON     WEIGHTED     COMMON     WEIGHTED     COMMON     WEIGHTED
                                               SHARES    AVG. PRICE    SHARES    AVG. PRICE    SHARES    AVG. PRICE
                                              --------   ----------   --------   ----------   --------   ----------
<S>                                           <C>        <C>          <C>        <C>          <C>        <C>
Balance, beginning of year..................  400,208      $ 5.69      13,945       $4.29          --       $  --
  Granted...................................   95,193      $ 8.02     428,732       $5.63      29,594       $4.16
  Exercised.................................  (16,174)     $ 5.55     (13,441)      $4.43      (4,795)      $4.06
  Forfeited.................................  (18,019)     $10.52     (29,028)      $4.67     (10,854)      $4.06
Balance, end of year........................  461,208      $ 5.82     400,208       $5.69      13,945       $4.29
Exercisable, end of year....................  166,200      $ 5.37     111,458       $5.64      13,945       $4.29
Fair value of options granted...............               $ 1.08                   $1.49                   $0.06
</TABLE>

    At December 31, 1998, exercise prices for outstanding options ranged from
$5.71 to $7.94. For the options outstanding at December 31, 1998, the weighted
average contractual life is 9.1 years.

    The Company accounts for both the 1997 Plan and the Employee Stock Purchase
Plan under APB Opinion No. 25, under which no compensation cost has been
recognized. Had compensation cost for these plans been determined consistently
with SFAS No. 123 and recognized over the vesting period, the Company's net
income and earnings per share would have been reduced to the following pro forma
amounts:

<TABLE>
<CAPTION>
                                                                           1998       1997       1996
                                                                         --------   --------   --------
<S>                          <C>                                         <C>        <C>        <C>
Net Income:                  As reported...............................   $2,226     $2,124     $2,497
                             Pro Forma.................................   $2,152     $2,024     $2,496

Basic earnings per share:    As reported...............................   $ 0.60     $ 0.82     $ 0.97
                             Pro Forma.................................   $ 0.58     $ 0.78     $ 0.97

Diluted earnings per share:  As reported...............................   $ 0.57     $ 0.78     $ 0.97
                             Pro Forma.................................   $ 0.55     $ 0.75     $ 0.97
</TABLE>

    The fair value of each option granted is estimated on the date of grant
using the Black-Scholes option pricing model, with the following
weighted-average assumptions used for grants in 1998, 1997, and 1996: risk-free
interest rate of 4.56 percent, 7 percent and 7 percent; expected dividend yield
of 0.58 percent for all years; and an expected volatility of 2.28 percent,
2.24 percent and 2.24 percent. Expected lives for options granted in 1998 and
1997 were 6 years and 0.25 year for options granted in 1996. Due to the
discretionary nature of stock option grants, the compensation cost included in
the 1998, 1997 and 1996 pro forma net income per SFAS No. 123 may not be
representative of that expected in future years.

                                      A-54
<PAGE>
                    COWLITZ BANCORPORATION AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(AMOUNTS IN THOUSANDS OF DOLLARS, EXCEPT NUMBER OF SHARES AND PER SHARE AMOUNTS)

10.  CONTINGENT LIABILITIES AND COMMITMENTS WITH OFF-BALANCE-SHEET RISK:

    The Company's consolidated financial statements do not reflect various
commitments and contingent liabilities of the subsidiaries that arise in the
normal course of business and that involve elements of credit risk, interest
rate risk and liquidity risk. These commitments and contingent liabilities are
commitments to extend credit, credit card arrangements and standby letters of
credit. A summary of the subsidiary's undisbursed commitments and contingent
liabilities at December 31, 1998 is as follows:

<TABLE>
<S>                                                           <C>
Commitments to extend credit................................  $20,424
Credit card commitments.....................................    3,974
Standby letters of credit...................................      258
                                                              -------
  Total.....................................................  $24,656
                                                              =======
</TABLE>

    Commitments to extend credit, credit card arrangements and standby letters
of credit all include exposure to some credit loss in the event of
nonperformance of the customer. The Bank's credit policies and procedures for
credit commitments and financial guarantees are the same as those for extension
of credit that are recorded on the consolidated balance sheets. Because these
instruments have fixed maturity dates and many of them expire without being
drawn upon, they do not generally present a significant liquidity risk to the
Bank.

    Most of the Bank's lending activity is with customers located in Cowlitz
County, Washington. An economic downturn in Cowlitz County would likely have a
negative impact on the Bank's results of operations, depending on the severity
of the downturn. The Bank maintains a diversified portfolio and does not have
significant on- or off- balance-sheet concentrations of credit risk in any one
industry.

11.  BALANCES WITH THE FEDERAL RESERVE BANK:

    The Bank is required to maintain reserves in cash or with the Federal
Reserve Bank equal to a percentage of its reservable deposits. Required reserves
were approximately $1,023, $929, and $580 as of December 31, 1998, 1997, and
1996, respectively.

12.  RELATED-PARTY TRANSACTIONS:

    Certain directors, executive officers and their spouses, associates and
related organizations, had banking transactions with the Bank in the ordinary
course of business. All loans and commitments to loan were made on substantially
the same terms and conditions, including collateral required as comparable
transactions with unaffiliated parties. Directors and executive officers are
charged the same rates of interest and loan fees as are charged to employees of
the Company, which interest rates and fees are slightly lower than charged to
nonemployee borrowers. The amounts of loans outstanding to

                                      A-55
<PAGE>
                    COWLITZ BANCORPORATION AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(AMOUNTS IN THOUSANDS OF DOLLARS, EXCEPT NUMBER OF SHARES AND PER SHARE AMOUNTS)

12.  RELATED-PARTY TRANSACTIONS: (Continued)

directors, executive officers, principal shareholders, and companies with which
they are associated was as follows:

<TABLE>
<CAPTION>
                                                                 DECEMBER 31,
                                                              -------------------
                                                                1998       1997
                                                              --------   --------
<S>                                                           <C>        <C>
Beginning balance...........................................   $1,077     $1,318
Loans made..................................................      186        704
Loan repayments made........................................     (319)      (698)
Other.......................................................       --       (247)
                                                               ------     ------
Ending balance..............................................   $  944     $1,077
                                                               ======     ======
</TABLE>

    Certain directors at December 31, 1996 were no longer directors at
December 31, 1997. The balances outstanding to such persons are reflected in the
Other category above.

    The chairman of the Company owns a securities brokerage franchise of Raymond
James Financial Services, Inc., which leases space from the Company.

13.  EMPLOYEE BENEFIT PLAN:

    The Company has a contributory retirement savings plan covering
substantially all full-time and part-time employees. The amount of the Company's
annual contribution is at the discretion of the Board of Directors. The Bank
contributed $164 and $115 for the years ended December 31, 1998 and 1997,
respectively.

14.  FAIR VALUE OF FINANCIAL INSTRUMENTS:

    SFAS No. 107, "Disclosures about Fair Value of Financial Instruments,"
requires the disclosure of the fair value of financial instruments. A financial
instrument is defined as cash, evidence of ownership interest in an entity, or a
contract that conveys or imposes the contractual right or obligation to either
receive or deliver cash or another financial instrument. Examples of financial
instruments included in the Company's balance sheets are cash, federal funds
sold or purchased; debt and equity securities; loans; demand, savings and other
interest bearing deposits; notes and debentures. Examples of financial
instruments, which are not included in the Company's balance sheets, are
commitments to extend credit and standby letters of credit.

    Fair value is defined as the amount at which a financial instrument could be
exchanged in a current transaction between willing parties, other than in a
forced sale or liquidation, and is best evidenced by a quoted market price if
one exists.

    The statement requires the fair value of deposit liabilities with no stated
maturity, such as demand deposits, NOW and money market accounts, to equal the
carrying value of these financial instruments and does not allow for the
recognition of the inherent value of core deposit relationships when determining
fair value. While the statement does not require disclosure of the fair value of
nonfinancial instruments, such as the Company's premises and equipment, its
banking and trust franchises and its core deposit relationships, the Company
believes that these nonfinancial instruments have significant fair value.

                                      A-56
<PAGE>
                    COWLITZ BANCORPORATION AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(AMOUNTS IN THOUSANDS OF DOLLARS, EXCEPT NUMBER OF SHARES AND PER SHARE AMOUNTS)

14.  FAIR VALUE OF FINANCIAL INSTRUMENTS: (CONTINUED)

    The following methods and assumptions were used to estimate the fair value
of each class of financial instruments for which it is practicable to estimate
that value:

    - Cash and due from banks--For these short-term instruments, the carrying
      amount is a reasonable estimate of fair value.

    - Investment securities--For securities held for investment purposes, fair
      values are based on quoted market prices or dealer quotes. For other
      securities, fair value equals quoted market prices, if available. If a
      quoted market price is not available, fair value is estimated using quoted
      market prices for similar securities.

    - Loans--For certain variable rate loans, fair value is estimated at
      carrying value, as these loans reprice to market frequently. The fair
      value of other types of loans is estimated by discounting the future cash
      flows, using the current rates at which similar loans would be made to
      borrowers with similar credit ratings and for the same remaining
      maturities.

    - Deposit Liabilities--The fair value of demand deposits, savings accounts
      and certain money market deposits is the amount payable on demand at the
      reporting date. The fair value of fixed-maturity certificates of deposit
      is estimated by discounting future cash flows, using the rates currently
      offered for deposits of similar remaining maturities.

    - Short-term borrowing--The carrying amounts of borrowings under repurchase
      agreements and short-term borrowings approximate their fair values.

    - Long-term borrowing--Rates currently available to the Bank for debt with
      similar terms and remaining maturities are used to estimate the fair value
      of existing debt.

    - Commitments to extend credit, credit card commitments and standby letters
      of credit--The fair values of commitments to extend credit, credit card
      commitments and standby letters of credit were not material as of
      December 31, 1998 and 1997.

    The estimated fair values of the Company's financial instruments at
December 31 were as follows:

<TABLE>
<CAPTION>
                                             1998                  1997
                                      -------------------   -------------------
                                      CARRYING     FAIR     CARRYING     FAIR
                                       AMOUNT     VALUE      AMOUNT     VALUE
                                      --------   --------   --------   --------
<S>                                   <C>        <C>        <C>        <C>
Financial assets:
  Cash and due from banks...........  $ 22,705   $ 22,705   $ 23,109   $ 23,109
  Investment securities.............  $ 11,530   $ 11,552   $  8,481   $  8,503
  Loans, net of allowances for loan
    losses..........................  $130,232   $133,491   $129,993   $130,093
  Federal Home Loan Bank stock......  $  2,869   $  2,869   $  2,658   $  2,658
Financial liabilities:
  Demand............................  $ 33,062   $ 33,062   $ 27,141   $ 27,141
  Savings and interest-bearing
    deposits........................  $ 47,367   $ 47,367   $ 46,454   $ 46,454
  Certificates of deposit...........  $ 41,932   $ 42,326   $ 62,614   $ 62,524
  Short-term borrowings.............  $  2,275   $  2,275   $    725   $    725
  Long-term borrowings..............  $ 21,799   $ 22,787   $ 21,900   $ 21,824
</TABLE>

                                      A-57
<PAGE>
                    COWLITZ BANCORPORATION AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(AMOUNTS IN THOUSANDS OF DOLLARS, EXCEPT NUMBER OF SHARES AND PER SHARE AMOUNTS)

15.  SEGMENTS OF AN ENTERPRISE AND RELATED INFORMATION:

    The Company adopted Statement of Financial Accounting Standards No. 131,
"Disclosure about Segments of an Enterprise and Related Information" as of
January 1, 1998. This statement establishes standards for the reporting and
display of information about operating segments in financial statements and
related disclosures.

    The Company is principally engaged in community banking activities through
its five Bank branches and corporate offices. The community banking activities
include accepting deposits, providing loans and lines of credit to local
individuals, businesses and governmental entities, investing in investment
securities and money market instruments, and holding or managing assets in a
fiduciary agency capacity on behalf of its customers and their beneficiaries. In
addition, beginning in 1998 with the acquisition of Business Finance
Corporation, the Company provides asset based financing to companies throughout
the Western United States.

    The community banking and asset based financing activities are monitored and
reported by Company management as separate operating segments. As permitted
under the Statement, the five separate banking offices have been aggregated into
a single reportable segment, Community Banking. The asset based financing
operating segment does not meet the prescribed aggregation or materiality
criteria and therefore is reported as Other in the following table below.

    The accounting policies for the Company's segment information provided below
are the same as those described in Note 1, except that some operating expenses
are not allocated to segments.

    Summarized financial information for the year ended December 31, 1998
concerning the Company's reportable segments is shown in the following table.
Prior to 1998, the Company had only one operating segment, Community Banking.

<TABLE>
<CAPTION>
                                     BANKING     OTHER     INTERSEGMENT   CONSOLIDATED
                                     --------   --------   ------------   ------------
<S>                                  <C>        <C>        <C>            <C>
Interest income....................  $ 15,870    $  556       $   (60)      $ 16,366
Interest expense...................     6,501        60           (60)         6,501
                                     --------    ------       -------       --------
  Net interest income..............     9,369       496            --          9,865
Provision for loan loss............       509        --            --            509
Noninterest income.................       978        --            --            978
Noninterest expense................     6,710       217            --          6,927
                                     --------    ------                     --------
  Income before taxes..............     3,128       279            --          3,407
Provision for income taxes.........     1,086        95            --          1,181
                                     --------    ------                     --------
  Net income.......................  $  2,042    $  184       $    --       $  2,226
                                     ========    ======       =======       ========
Depreciation and amortization......  $    524    $   --       $    --       $    524
                                     ========    ======       =======       ========
Assets.............................  $175,410    $4,797       $(1,862)      $178,345
                                     ========    ======       =======       ========
</TABLE>

                                      A-58
<PAGE>
                    COWLITZ BANCORPORATION AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(AMOUNTS IN THOUSANDS OF DOLLARS, EXCEPT NUMBER OF SHARES AND PER SHARE AMOUNTS)

16.  ACQUISITION

    On August 31, 1998, the Company acquired Business Finance Corporation (BFC)
of Bellevue, Washington. BFC provides asset-based financing to companies
throughout the Western United States. A cash payment of approximately $1,776 was
made and 51,282 shares of Company stock with a value of $465 were issued in
connection with the acquisition. Available cash resources were used to finance
the acquisition. A future contingent issuance of the Company's common stock
valued at approximately $500 will be made if BFC achieves certain earnings goals
for the twelve-month period following the acquisition. The value of any
subsequently issued shares will be allocated to cost in excess of the fair value
of the net assets acquired.

    The BFC acquisition was recorded under the purchase method of accounting;
and accordingly, the results of operations of BFC for the period from
August 31, 1998 are included in the accompanying consolidated financial
statements. The purchase price has been allocated to the assets acquired and
liabilities assumed based on fair market value at the date of acquisition. The
fair value of assets acquired and liabilities assumed is summarized as follows:

<TABLE>
<S>                                    <C>
Factored receivables.................                 $ 2,357
Other assets.........................                     273
Goodwill.............................                   1,571
Liabilities assumed..................                  (1,836)
Stock issued.........................                    (465)
                                                      -------
Cash paid for acquisition............                   1,900
Cash acquired........................                    (124)
                                                      -------
Net cash paid for acquisition........                 $ 1,776
                                                      =======
</TABLE>

    The following unaudited pro forma financial information for the Company
gives effect to the BFC acquisition as if it had occurred on January 1, 1997.
These pro forma results have been prepared for comparative purposes only and do
not purport to be indicative of the results of operations which actually would
have resulted had the acquisition occurred on the date indicated, or which may
result in the future for the combined companies under the ownership and
management of the Company. The pro forma results include certain adjustments,
such as additional expense as a result of goodwill amortization.

<TABLE>
<CAPTION>
                                                            PRO FORMA
                                              -------------------------------------
                                                 YEAR ENDED          YEAR ENDED
                                              DECEMBER 31, 1998   DECEMBER 31, 1997
                                              -----------------   -----------------
                                                           (UNAUDITED)
<S>                                           <C>                 <C>
Interest income.............................       $16,519             $15,180
Net income..................................       $ 2,423             $ 2,210
Diluted earnings per share..................       $  0.62             $  0.81
</TABLE>

                                      A-59
<PAGE>
                    COWLITZ BANCORPORATION AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(AMOUNTS IN THOUSANDS OF DOLLARS, EXCEPT NUMBER OF SHARES AND PER SHARE AMOUNTS)

17.  PARENT-COMPANY-ONLY FINANCIAL DATA:

    The following sets forth condensed financial information of the Company on a
stand-alone basis:

                            STATEMENTS OF CONDITION
                                (UNCONSOLIDATED)

<TABLE>
<CAPTION>
                                                               DECEMBER 31,
                                                            -------------------
                                                              1998       1997
                                                            --------   --------
<S>                                                         <C>        <C>
Assets:
  Cash and due from depository institutions...............  $11,250    $   937
  Investment in bank subsidiary...........................   16,458     14,147
  Investment in non-bank subsidiary.......................    2,424         --
  Receivables due from non-bank subsidiary................      579         --
  Other assets............................................      320        156
                                                            -------    -------
      Total assets........................................  $31,031    $15,240
                                                            =======    =======
Liabilities and shareholders' equity:
  Liabilities:
    Long-term borrowings..................................  $    --    $ 1,319
    Other liabilities.....................................      111         34
                                                            -------    -------
      Total liabilities...................................      111      1,353
  Shareholders' equity....................................   30,920     13,887
                                                            -------    -------
      Total liabilities and shareholders' equity..........  $31,031    $15,240
                                                            =======    =======
</TABLE>

                                      A-60
<PAGE>
                    COWLITZ BANCORPORATION AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(AMOUNTS IN THOUSANDS OF DOLLARS, EXCEPT NUMBER OF SHARES AND PER SHARE AMOUNTS)

17.  PARENT-COMPANY-ONLY FINANCIAL DATA: (Continued)

                              STATEMENTS OF INCOME
                                (UNCONSOLIDATED)

<TABLE>
<CAPTION>
                                                         YEAR ENDED DECEMBER 31,
                                                      ------------------------------
                                                        1998       1997       1996
                                                      --------   --------   --------
<S>                                                   <C>        <C>        <C>
Income:
  Income from subsidiaries..........................   $  495     $   54     $   56
                                                       ------     ------     ------
    Total income....................................      495         54         56
                                                       ------     ------     ------
Expenses:
  Interest expense..................................       30        116        130
  Other expense.....................................      800        353        334
                                                       ------     ------     ------
    Total expense...................................      830        469        464
                                                       ------     ------     ------
    Loss before income tax benefit and equity in
      undistributed earnings of subsidiaries........     (335)      (415)      (408)
Income tax benefit..................................       97        135        138
                                                       ------     ------     ------
  Net loss before equity in undistributed earnings
    of subsidiaries.................................     (238)      (280)      (270)
Equity in undistributed earnings of subsidiaries....    2,464      2,404      2,767
                                                       ------     ------     ------
  Net income........................................   $2,226     $2,124     $2,497
                                                       ======     ======     ======
</TABLE>

                                      A-61
<PAGE>
                    COWLITZ BANCORPORATION AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(AMOUNTS IN THOUSANDS OF DOLLARS, EXCEPT NUMBER OF SHARES AND PER SHARE AMOUNTS)

17.  PARENT-COMPANY-ONLY FINANCIAL DATA: (Continued)

                            STATEMENTS OF CASH FLOWS

<TABLE>
<CAPTION>
                                                         YEAR ENDED DECEMBER 31,
                                                      ------------------------------
                                                        1998       1997       1996
                                                      --------   --------   --------
<S>                                                   <C>        <C>        <C>
Cash flow from operating activities:
  Net income........................................  $ 2,226     $2,124     $2,497
  Adjustments to reconcile net income to net cash
    (used for) operating activities:
    Undistributed earnings of the subsidiaries......   (2,464)    (2,404)    (2,767)
    Decrease (increase) in other assets.............     (164)      (149)        39
    Increase (decrease) in other liabilities........       77         23         (5)
                                                      -------     ------     ------
      Net cash used by operating activities.........     (325)      (406)      (236)
                                                      -------     ------     ------
Cash flows from investing activities:
  Capital payments from bank........................       --        500         --
  Acquisition of business, net of cash acquired.....   (1,776)        --         --
  Advances to subsidiaries..........................     (579)        --         --
                                                      -------     ------     ------
      Net cash (used for) provided by investing
        activities..................................   (2,355)       500         --
                                                      -------     ------     ------
Cash flows from financing activities:
  Net repayments of long-term borrowings............   (1,319)      (159)      (146)
  Purchase of treasury stock........................     (494)        --         --
  Proceeds from issuance of common stock............   15,018         67         19
  Dividends paid....................................     (212)      (126)      (101)
                                                      -------     ------     ------
      Net cash provided by (used for) financing
        activities..................................   12,993       (218)      (228)
                                                      -------     ------     ------
Net increase (decrease) in cash and cash
  equivalents.......................................   10,313       (124)      (464)
Cash and cash equivalents at beginning of year......      937      1,061      1,525
                                                      -------     ------     ------
Cash and cash equivalents at end of year............  $11,250     $  937     $1,061
                                                      =======     ======     ======
</TABLE>

                                      A-62
<PAGE>
                    COWLITZ BANCORPORATION AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(AMOUNTS IN THOUSANDS OF DOLLARS, EXCEPT NUMBER OF SHARES AND PER SHARE AMOUNTS)

18.  QUARTERLY FINANCIAL INFORMATION (UNAUDITED):

<TABLE>
<CAPTION>
                                     MARCH 31   JUNE 30    SEPTEMBER 30   DECEMBER 31
                                     --------   --------   ------------   -----------
<S>                                  <C>        <C>        <C>            <C>
1998
Interest income....................   $3,781     $4,189       $4,104        $4,292
Interest expense...................    1,661      1,722        1,571         1,547
                                      ------     ------       ------        ------
  Net interest income..............    2,120      2,467        2,533         2,745
Provision for loan losses..........     (106)       (26)        (111)         (266)
Noninterest income.................      264        231          239           244
Noninterest expense................    1,619      1,681        1,734         1,893
                                      ------     ------       ------        ------
  Income before income taxes.......      659        991          927           830
Provision for income taxes.........      224        337          315           305
                                      ------     ------       ------        ------
  Net income.......................   $  435     $  654       $  612        $  525
                                      ======     ======       ======        ======
Basic earnings per share...........   $  .15     $  .16       $  .15        $  .13
                                      ======     ======       ======        ======
Diluted earnings per share.........   $  .14     $  .15       $  .15        $  .13
                                      ======     ======       ======        ======
</TABLE>

<TABLE>
<CAPTION>
                                     MARCH 31   JUNE 30    SEPTEMBER 30   DECEMBER 31
                                     --------   --------   ------------   -----------
<S>                                  <C>        <C>        <C>            <C>
1997
Interest income....................   $3,594     $3,622       $3,919        $3,951
Interest expense...................    1,761      1,676        1,796         1,709
                                      ------     ------       ------        ------
  Net interest income..............    1,833      1,946        2,123         2,242
Provision for loan losses..........      (91)       (98)        (111)          (75)
Noninterest income.................      154        161          219           215
Noninterest expense................    1,116      1,214        1,509         1,446
                                      ------     ------       ------        ------
    Income before income taxes.....      780        795          722           936
Provision for income taxes.........      265        271          245           328
                                      ------     ------       ------        ------
    Net income.....................   $  515     $  524       $  477        $  608
                                      ======     ======       ======        ======
Basic earnings per share...........   $  .20     $  .20       $  .18        $  .23
                                      ======     ======       ======        ======
Diluted earnings per share.........   $  .20     $  .20       $  .18        $  .22
                                      ======     ======       ======        ======
</TABLE>

    As discussed in Footnote 1, the Company has restated its historical basic
and diluted earnings per share to conform with SAB No. 98.

<TABLE>
<CAPTION>
                                       QUARTER               QUARTER               QUARTER               QUARTER
                                        ENDED                 ENDED                 ENDED                 ENDED
                                      MARCH 31,             JUNE 30,            SEPTEMBER 30,         DECEMBER 31,
                                        1997                  1997                  1997                  1997
                                 -------------------   -------------------   -------------------   -------------------
                                  BASIC     DILUTED     BASIC     DILUTED     BASIC     DILUTED     BASIC     DILUTED
                                 --------   --------   --------   --------   --------   --------   --------   --------
<S>                              <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>
Previously reported EPS........    $.17       $.17       $.19       $.19       $.17       $.17       $.22       $.22
Restated EPS...................    $.20       $.20       $.20       $.20       $.18       $.18       $.23       $.22
</TABLE>

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS

    None

                                      A-63
<PAGE>
                                   APPENDIX B
                      INFORMATION CONCERNING NORTHERN BANK

GENERAL

    Northern Bank of Commerce is an Oregon state chartered bank that has been
providing full service banking to small and medium sized businesses in the
Portland, Oregon metropolitan area since it opened in August 1994. Northern Bank
operates a full service office in downtown Portland and operates limited hour
branches in eight residential retirement communities in Multnomah, Washington
and Clackamas Counties. Nearly all of Northern Bank's competitors are
super-regional banks with out-of-state headquarters, or community banks
headquartered elsewhere in Oregon but with Portland-area branches. Northern
Bank's Portland headquarters provides more immediate access to its customers and
permits local decision making. Northern Bank provides loan, deposit and cash
management services tailored to the needs of small to middle market business
customers, and provides personal banking services to its business customers. In
addition to business banking, Northern Bank's branches provide a relatively
stable deposit base while allowing the bank to provide excellent service to
individual customers in a niche market.

    Northern Bank has grown rapidly, and management believes its innovative
approach to business banking is recognized as a much-needed answer to the growth
of giant interstate financial institutions that often ignore small businesses
and individual customers. However, its growth has not been without challenges.
Just as it has helped many of the bank's customers respond to the stresses and
demands of expansion, Northern Bank has faced similar challenges. On July 19,
1999, following three successive years of asset growth at an average annual rate
of 40%, Northern Bank entered into stipulated Orders to Cease and Desist with
the Federal Deposit Insurance Corporation and the Oregon Department of Business
and Consumer Services. The two orders, which were similar in their findings and
requirements, stated that Northern Bank had engaged in specified "unsafe or
unsound banking practices." The regulators contended that Northern Bank had
failed to adhere to specified laws and regulations relating primarily to loan
administration by, among other things, operating with inadequate management,
operating with inadequate equity capital and reserves in relation to the
quantity and quality of the bank's outstanding loans, operating with a large
volume of poor quality loans, operating without an adequate reserve for loan and
lease losses, and following inadequate lending and lax collection practices.

    Northern Bank has responded aggressively to this setback by shifting to a
more conservative view of the bank's loan portfolio, increasing its allowance
for loan and lease losses from $1,634,000 to $1,882,000 during the third fiscal
quarter of this year. This move follows a restatement of earnings to increase
the bank's loan loss reserve by an additional $474,000 during the previous
quarter, and management anticipates that this trend may continue for at least
the remainder of fiscal 1999. Moreover, although Northern Bank had no
charge-offs during the first nine months of this year, management continually
examines the loan portfolio to provide an optimum loan administration process
while recognizing when a troubled loan becomes uncollectible. As a result of
these examinations, Northern Bank has determined to charge off non-performing
loans totaling $700,000 during the fourth quarter through November 24, 1999. Of
this amount, approximately $600,000 is covered by existing reserves. Management
has not yet determined whether additional charge-offs will be required in the
fourth quarter, but expects to maintain a conservative view of the bank's loan
portfolio throughout the foreseeable future.

    Another requirement imposed by the regulatory orders described above is that
Northern Bank retain a chief executive officer with proven abilities in managing
a bank of comparable size and with experience in managing and upgrading loan
quality, improving earnings, and other matters noted as needing particular
attention. Northern Bank also is required to ensure that the Chairman of the
bank's Board of Directors is an outside director. As a part of the response to
these requirements, the board

                                      B-1
<PAGE>
has retained James A. Wills, former Executive Vice President and Chief Lending
Officer of Cowlitz Bank, as the bank's Acting President and Chief Lending
Officer, and the Board of Directors has elected William Spicer, a proven leader
with over 30 years' banking experience, as Chairman of the Board. Working
together with Northern Bank's outstanding team of employees, Mr. Spicer and
Mr. Wills have developed and begun to implement a multi-faceted plan intended
both to respond to regulators' concerns and to improve the overall quality of
Northern Bank. Management will continue to monitor Northern Bank's performance
and to refine its operating plans in light of safe and sound banking practices.

    Additionally, Northern Bank announced on September 14, 1999 that it had
entered into an Agreement and Plan of Merger with Cowlitz Bancorp and Cowlitz
Bank. Given that Northern Bank's assets and liabilities will transfer to Cowlitz
Bank if the merger is concluded, Northern Bank plans to maximize the quality of
its assets and to protect against loan losses. Moreover, one aspect of the
proposed merger is that a portion of the purchase price will be held in escrow
for a period of two years to indemnify Cowlitz Bank for losses connected with
specific identified loans in Northern Bank's portfolio, to the extent those
losses exceed established reserves. Management believes it is in Northern Bank
shareholders' best interest to maintain a conservative view of the loan
portfolio. Although the merger is conditioned on a number of factors, including
the approval of Northern Bank's shareholders and federal and state banking
regulators, and therefore may not be concluded, management believes that it
should reserve aggressively against potential loan losses.

    Notwithstanding the setbacks Northern Bank has experienced, management has
maintained a focus on the future by ensuring that it concentrates on the bank's
core strengths and goals. The primary goal is to continue building on its
position as a leading community-based business bank, and to position the
surviving entity to follow this vision if the merger is completed, by providing
exceptional personal service to the bank's customers, expanding where necessary
to meet their unique needs. The components of this strategy are outlined below.

    - CONTINUE TO GROW ASSETS IN ITS CORE MARKET. Northern Bank has demonstrated
      an ability to grow its assets aggressively in a well-defined business
      market. With each year, asset growth has driven the bank's total revenues
      higher. Management has begun to take a much more conservative view of
      Northern Bank's loan portfolio and has adopted a more conservative policy
      of strengthening the portfolio by reserving a considerable portion of the
      bank's income against potential losses. Management anticipates that higher
      revenues and increasing loan loss reserves will continue for the
      foreseeable future. Therefore, the key to Northern Bank's strategy is to
      generate sound asset growth in its primary market, paying special
      attention to asset quality.

    - ESTABLISH AND MAINTAIN HIGH ASSET QUALITY. Northern Bank seeks to improve
      the quality of its assets and maintain that quality by adhering strictly
      to established credit policies, and by carefully training and continuously
      supervising its loan officers. Northern Bank also seeks to enhance the
      quality of its loan portfolio by hiring loan officers and employees who
      have exceptional banking experience and who have established ties to the
      communities the bank serves. As a part of its effort to promote this
      strategy, Northern Bank hired Mr. Wills as the bank's Acting President and
      Chief Lending Officer. With outstanding expertise in managing a loan
      portfolio in a changing market, and with his knowledge of banking
      regulations and procedures, the Board of Directors expects that Mr. Wills
      will provide an invaluable service in improving the quality of the bank's
      assets. In addition, management will continue to examine the bank's loan
      portfolio and deposit base to ensure that Northern Bank attracts and
      retains quality assets, and that where necessary, the bank utilizes its
      substantial loan loss reserves to offset charge-offs of non-performing
      assets.

    - CONTINUE TO GROW THE NICHE RETIREMENT MARKET. Northern Bank has eight
      branches in retirement residences. These branches have brought a marked
      growth in deposits. Moreover, the deposits at

                                      B-2
<PAGE>
      these locations tend to be stable and are not associated with significant
      borrowing. This provides funds that allow Northern Bank better to support
      its growing commercial loan portfolio. Because the residents of these
      facilities tend to expect a high level of personal service, they choose to
      bank at a place that is willing and able to devote particular attention to
      their needs. These expectations fit perfectly with Northern Bank's
      approach to middle market business customers, who also demand top quality
      service and personal attention.

    - CONTINUE TO EXPAND THROUGH NEW PRODUCTS. Northern Bank has tailored its
      services to the needs of Portland community businesses and individual
      customers. As the bank has grown and has seen its customers grow,
      management has recognized a number of new opportunities to expand its
      services. Northern Bank will continue to examine the feasibility of
      additional cash and investment management services to supplement those it
      currently offers, and expects to afford significant expertise to the
      surviving entity, as well as added products and services such as trust and
      estate planning, if the merger is concluded.

    Management has identified a number of ways to pursue the strategy outlined
above, and has begun to implement these measures, many of which also will
promote compliance with the cease and desist orders. For example, Northern Bank
focuses on:

    - Providing the highest level of service to its commercial customers,
      including electronic banking services.

    - Hiring, training and retaining employees who have demonstrated commercial
      banking skills and experience, as well as established ties to the
      communities Northern Bank serves.

    - Acquiring a highly skilled management team, and providing adequate
      supervision for that team at all levels.

    - Allowing personnel the flexibility to respond to each customer's
      particular needs while remaining mindful of the bank's policies and
      standards.

    Northern Bank will continue to refine its strategy and to reexamine the
measures it uses to pursue that strategy. At the pinnacle of these goals is the
need to provide an exceptional value for shareholders and customers. Management
believes that optimizing the bank's performance means establishing an
outstanding base of customers and assets, and using those as building blocks to
continue to grow Northern Bank's core business in a prudent manner while looking
for opportunities to expand in a way that provides both quality customer service
and substantial value.

MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF
  OPERATIONS

NINE MONTHS ENDED SEPTEMBER 30, 1999 AND 1998

    As of September 30, 1999 Northern Bank's total assets were $60,987,000,
compared with total assets of $61,140,000 on December 31, 1998 and $58,031,000
on September 30, 1998. Northern Bank's net loans increased 4.55% from
$46,882,000 to $49,013,000 from September 30, 1998 to September 30, 1999, and
deposits increased 6.28% from $52,712,000 to $56,024,000 on those dates. For the
nine months ended September 30, 1999, Northern Bank reported a net loss of
$196,000 or $0.16 per diluted share. This compares to net income of $333,000 or
$0.24 per diluted share for the same period in 1998 and net income of $120,000
or $0.09 per diluted share for the year ended December 31, 1998.

    Management attributes the bank's decrease in net income primarily to a
substantial increase in the bank's loan loss reserve. Northern Bank increased
the reserve primarily because management has entered into cease and desist
orders with the Oregon Department of Business and Consumer Services and the
FDIC, which contend in part that the bank previously failed to establish and
maintain an adequate allowance for loan and lease losses. Northern Bank has
moved aggressively to respond to

                                      B-3
<PAGE>
these orders, including restating the bank's June 30, 1999 financial statements
to increase the bank's loan loss reserves by $474,000. In the third quarter,
management again increased the reserve substantially. Management expects to
continue to monitor loan quality and performance closely to ensure that Northern
Bank exceeds the regulators' expectations and optimizes its own financial
performance, and where appropriate, Northern Bank will use its reserves to
offset charge-offs as that becomes necessary.

RESULTS OF OPERATIONS

NET INTEREST INCOME

    The primary component of earnings for banking institutions is net interest
income. Net interest income is the difference between interest income a bank
receives, primarily from loans and investment securities, and interest expense
it pays, principally on customer deposits. Net interest income for the nine
months ended September 30, 1999, was $2,743,000, an increase of $519,000, or
23.35%, over the same period in 1998. These results were due primarily to an
increase in the volume of the bank's earning assets. Loans, which generally
carry a higher yield than investment securities and other earning assets,
comprised the majority of Northern Bank's earning assets during the nine-month
periods ended September 30, 1999 and 1998. Average loan yields were 10.43% in
the first nine months of 1999 and 10.74% in the first nine months of 1998.
Northern Bank's annualized net interest margin, which is the net interest income
divided by the average earning assets, was 5.59% for the nine months ended
September 30, 1999, compared with 6.06% for the nine months ended September 30,
1998.

    ANALYSIS OF NET INTEREST INCOME.  The following table presents information
regarding yields and interest earning assets, expense on interest earning
liabilities, and net yields on interest earning assets for the periods
indicated.

<TABLE>
<CAPTION>
                                                            NINE MONTHS ENDED
                                                              SEPTEMBER 30,
                                                          ----------------------       INCREASE
                                                            1999          1998        (DECREASE)       CHANGE
                                                          --------      --------      ----------      --------
                                                                         (DOLLARS IN THOUSANDS)
<S>                                                       <C>           <C>           <C>             <C>
Interest income.....................................      $ 4,692       $ 3,762         $   930         24.7%
Interest expense....................................        1,949         1,539             410         26.6%
                                                          -------       -------         -------
Net interest income.................................      $ 2,743       $ 2,223         $   520         23.4%
                                                          =======       =======         =======
Average interest earning assets.....................      $65,612       $49,043         $16,569         33.8%
Average interest bearing liabilities................      $52,356       $38,497         $13,859         36.0%
Average yields earned(1)............................         9.56%        10.26%          (0.70)%
Average rates paid(1)...............................         4.98%         5.34%          (0.36)%
Net interest spread(1)..............................         4.58%         4.91%          (0.33)%
Net interest margin(1)..............................         5.59%         6.06%          (0.47)%
</TABLE>

------------------------

(1) Ratios for the nine months ended September 30, 1999 and 1998, have been
    annualized.

                                      B-4
<PAGE>
    The following table presents average balances and interest income or
interest expense with the resulting average yield or rates by category of
average earning asset or interest-bearing liability:

<TABLE>
<CAPTION>
                                                FOR THE NINE MONTHS ENDED        FOR THE NINE MONTHS ENDED
                                                    SEPTEMBER 30, 1999               SEPTEMBER 30, 1998
                                              ------------------------------   ------------------------------
                                              AVERAGE    INC/EXP      RATE     AVERAGE    INC/EXP      RATE
                                              --------   --------   --------   --------   --------   --------
<S>                                           <C>        <C>        <C>        <C>        <C>        <C>
Interest-earning assets:
Loans.......................................  $55,088     $4,297     10.43%    $44,433     $3,570     10.74%
Investment securities.......................    1,697         76      6.00%      1,260         58      6.15%
Federal Funds sold..........................    8,827        318      4.82%      3,350        134      5.36%
                                              -------     ------     -----     -------     ------
Total interest-earning assets...............   65,612      4,692      9.56%     49,043      3,762     10.26%
                                                          ------     -----                 ------     -----
Cash and due from banks.....................    2,988                            2,120
Fixed assets................................      110                               81
Loan loss allowance.........................   (1,308)                            (472)
Other assets................................      824                              823
                                              -------                          -------
Total assets................................  $68,226                          $51,595
                                              =======
Interest-bearing liabilities:
Interest-bearing checking and savings
  accounts..................................  $24,898        772      4.15%    $17,794        595      4.47%
Time deposits...............................   27,458      1,177      5.73%     20,703        944      6.09%
                                              -------     ------     -----     -------     ------     -----
Total interest-bearing liabilities..........   52,356      1,949      4.98%     38,497      1,539      5.34%
                                                          ------     -----                 ------     -----
Noninterest bearing deposits................   10,729                            7,893
Other liabilities...........................      383                              719
                                              -------                          -------
Total liabilities...........................   63,468                           47,109
Shareholders' equity........................    4,758                            4,486
                                              -------                          -------
Total liabilities and shareholders'
  equity....................................  $68,226                          $51,595
                                              =======                          =======
Net interest income.........................              $2,743                           $2,223
                                                          ======                           ======
Net interest margin.........................                          5.59%                            6.06%
                                                                     =====                            =====
</TABLE>

    ANALYSIS OF CHANGES IN INTEREST DIFFERENTIAL.  The following table shows the
dollar amount of the increase (decrease) in Northern Bank's net interest income
and expense and attributes such dollar

                                      B-5
<PAGE>
amounts to changes in volume as well as changes in rates. Rate and volume
variances have been allocated proportionally between rate and volume changes:

<TABLE>
<CAPTION>
                                                            FOR THE PERIOD ENDED
                                                         SEPTEMBER 30, 1998 TO 1999
                                                         INCREASE (DECREASE) DUE TO
                                                       ------------------------------
                                                                               NET
                                                        VOLUME      RATE      CHANGE
                                                       --------   --------   --------
                                                           (DOLLARS IN THOUSANDS)
<S>                                                    <C>        <C>        <C>
Interest-earning assets:
  Loans..............................................   $  856     $(129)     $ 727
  Investment securities..............................       20        (2)        18
  Federal funds sold.................................      219       (35)       184
                                                        ------     -----      -----
    Total............................................    1,095      (166)      (929)
                                                        ------     -----      -----
Interest-bearing liabilities:
  Interest-bearing checking and savings accounts.....     (238)       61       (177)
  Time deposits......................................     (308)       74       (233)
                                                        ------     -----      -----
    Total............................................     (546)      135       (410)
                                                        ------     -----      -----
Net increase (decrease) in net interest income.......   $  550     $ (31)     $ 519
                                                        ======     =====      =====
</TABLE>

    PROVISION FOR LOAN LOSSES.  Provisions for loan losses recorded for the nine
months ended September 30, 1999 were $779,000 as compared to $75,000 for the
corresponding period in 1998. There were no charge-offs during the nine-month
periods ended September 30, 1999 and 1998. Recoveries of prior charge-offs were
$12,000 for the nine months ended September 30, 1998. There were no loan loss
recoveries during the first nine months of 1999. However, through November 24,
1999 management had determined that fourth quarter charge-offs of $700,000 would
be necessary, of which approximately $600,000 were covered by existing reserves.

    At September 30, 1999, the allowance for loan losses was 3.69% of total
loans outstanding. This compares to corresponding loan loss reserve ratios of
2.14% at December 31, 1998 and 1.04% at September 30, 1998. At September 30,
1999, nonperforming assets were $1.75 million or 2.87% of total assets.
Nonaccrual loans were $374,000 at September 30, 1999, which include non-accrual
loans plus all loans 90 days or more past due on which collection of interest
was not then in doubt. There were no nonaccrual loans at September 30, 1998. In
the fourth quarter through November 24, 1999 management has determined to charge
off non-performing loans totaling $700,000. Of this amount, approximately
$600,000 is covered by existing reserves. Management has not yet determined
whether additional charge-offs will be required in the fourth quarter, but
expects to maintain a conservative view of the bank's loan portfolio throughout
the foreseeable future.

                                      B-6
<PAGE>
NON-INTEREST INCOME AND NON-INTEREST EXPENSE

    NON-INTEREST INCOME.  For the nine months ended September 30, 1999, total
non-interest income was $101,000, a 59.49% increase over the $63,000 earned in
the same period of 1998. Non-interest income consists of the following
components:

<TABLE>
<CAPTION>
                                                                       NINE MONTHS
                                                                          ENDED
                                                                       SEPTEMBER 30
                                                                  ----------------------
                                                                    1999          1998
                                                                  --------      --------
                                                                       (DOLLARS IN
                                                                        THOUSANDS)
<S>                                                               <C>           <C>
Service charges on deposit accounts.........................        $ 48          $22
Other loan and fee income...................................          20           10
Other miscellaneous fees and income.........................          33           31
                                                                    ----          ---
Total non-interest income...................................        $101          $63
                                                                    ====          ===
</TABLE>

    NON-INTEREST EXPENSES.  For the nine-month periods ended September 30, 1999
and September 30, 1998, salary and related employee benefit expenses were
$993,000 and $731,000, respectively. Approximately $80,000 of the
$262,000 year-to-year increase was due to staffing costs at the seven
residential retirement community offices the bank has opened during the covered
period. Most of the remainder is attributable to increased staffing at the
bank's main office location, primarily due to increases in business activity and
asset size, and to additional costs associated with temporary employees who are
assisting while management locates experienced replacements for employees who
have left the bank in recent months. Additionally, the cease and desist orders
require, among other things, that the bank retain additional personnel for loan
administration and collection. Northern Bank has begun to recruit the needed
personnel, but management expects that this effort will result in additional
salary and employee benefits expenses.

    Occupancy expense was $112,000 for the nine-month period ended
September 30, 1999, compared to $117,000 for the same period in 1998. Management
expects that these expenses will remain at approximately this level through the
remainder of 1999.

    For the first nine months of 1999 and 1998, furniture and equipment expenses
were $74,000 and $70,000, respectively. Again, management anticipates similar
expenditures during the remainder of 1999.

    Other expenses, including data processing, communications, office supplies,
marketing and promotional expenses were $1,081,000 for the nine-month period
ended September 30, 1999, compared to $822,000 for the same period in 1998. Of
this $259,000 year-to-date increase, $95,000 is attributable to increased legal,
audit and other professional fees, primarily due to capital-raising, regulatory
and merger activities. Approximately $30,000 results from additional staff
hiring costs and training expenses and $13,000 comes from increases in courier
fees between the main office and the bank's growing network of residential
retirement branches. Other expense increases were $44,000 for data processing
(including Year 2000 computer compliance issues), $40,000 for increased loan
processing and collection fees, and $35,000 from increased fraudulent check
losses.

    INCOME TAXES.  For the nine-month period ended September 30, 1999, the Bank
made no income tax expense provision, compared with an income tax expense of
$139,000 for the same period in 1998.

NET INCOME AFTER INCOME TAXES

    During the nine month period ended September 30, 1999 Northern Bank
experienced a loss of $196,000 ($0.16 per diluted share), compared to net
earnings of $333,000 ($0.24 per diluted share) in

                                      B-7
<PAGE>
the corresponding period of 1998. The bank's pre-tax loss for the first nine
months of 1999 was $196,000, contrasted with pre-tax earnings of $472,000 for
the same period in 1998.

    As discussed above, management attributes a large portion of Northern Bank's
net loss for the year to date, to management's plan to increase the allowance
for loan and lease losses as a response to regulatory concerns and as a part of
its strategy to take a more conservative view of its loan portfolio. Management
also believes this posture is a significant positive step for the bank and will
help shareholders receive the optimum value for their investment.

    Northern Bank's annualized return on average shareholder equity (ROAE) was
(5.51%) and 9.93% for the nine-month periods ended September 30, 1999 and 1998,
respectively. For the same periods, Northern Bank had an annualized return on
average assets (ROAA) of (0.38%) and 0.86%.

FINANCIAL CONDITION

                             SUMMARY BALANCE SHEETS

<TABLE>
<CAPTION>
                                                  INCREASE (DECREASE)                          INCREASE (DECREASE)
                                 BALANCES          12/31/97--9/30/98          BALANCES          12/31/98--9/30/99
                           --------------------   -------------------   --------------------   -------------------
                           SEPT. 30,   DEC. 31,    DOLLAR               SEPT. 30,   DEC. 31,    DOLLAR
                             1999        1998      AMOUNT    % CHANGE     1998        1997      AMOUNT    % CHANGE
                           ---------   --------   --------   --------   ---------   --------   --------   --------
                                                           (DOLLARS IN THOUSANDS)
<S>                        <C>         <C>        <C>        <C>        <C>         <C>        <C>        <C>
ASSETS
  Federal funds sold....    $ 2,500    $ 3,675    $(1,175)    (31.97)%   $ 5,300    $   200    $ 5,100    2,500.50%
  Investments...........      4,720      1,108      3,612     325.79%      1,321      2,048       (727)     (35.50)%
  Loans.................     49,013     50,508     (1,495)     (2.96)%    46,882     40,702      6,180       15.18%
  Other assets..........      4,754      5,849     (1,095)    (18.72)%     4,528      1,580      2,948      186.58%
                            -------    -------    -------     ------     -------    -------    -------    --------
  Total Assets..........    $60,987    $61,140    $  (153)     (0.25)%   $58,031    $44,530    $13,501       30.32%
                            =======    =======    =======     ======     =======    =======    =======    ========

LIABILITIES
Noninterest-bearing
  deposits..............    $ 9,849    $ 8,918    $   931      10.44%    $ 9,022    $ 7,698    $ 1,324       17.20%
Interest bearing
  deposits..............     46,175     47,305     (1,130)     (2.39)%    43,690     32,508     11,182       34.40%
                            -------    -------    -------     ------     -------    -------    -------    --------
Total Deposits..........     56,024     56,223       (199)     (0.35)%    52,712     40,206     12,506       31.10%
Other liabilities.......        454        182        272     149.95%        363        112        251      224.11%
                            -------    -------    -------     ======     -------    -------    -------    --------
Total Liabilities.......     56,478     56,405         73       0.13%     53,075     40,318     12,757       31.64%
SHAREHOLDERS' EQUITY....      4,509      4,735       (226)     (4.77)%     4,956      4,212        744       17.66%
                            -------    -------    -------     ------     -------    -------    -------    --------
Total liabilities and
  shareholders'
  equity................    $60,987    $61,140    $  (153)     (0.25)%   $58,031    $44,530    $13,501       30.32%
                            =======    =======    =======     ======     =======    =======    =======    ========
</TABLE>

INVESTMENT SECURITIES

    The bank's total investment portfolio at September 30, 1999 was $7,220,000,
consisting of $2,500,000 in overnight Federal Funds and $4,720,000 in
available-for-sale investment securities. On December 31, 1998 the portfolio
totaled $4,783,000, and consisted of $3,675,000 in Federal Funds and $1,108,000
in available-for-sale investments. This represents a 50.95% increase in
investments over the

                                      B-8
<PAGE>
first nine months of 1999. The bank's investment securities on September 30,
1999 and 1998, and December 31, 1998, consisted of the following:
<TABLE>
<CAPTION>
                                       SEPTEMBER 30, 1999                   DECEMBER 31, 1998
                                ---------------------------------   ---------------------------------
                                           APPROXIMATE                         APPROXIMATE
                                  BOOK       MARKET         %         BOOK       MARKET         %
                                 VALUE        VALUE       YIELD      VALUE        VALUE       YIELD
                                --------   -----------   --------   --------   -----------   --------
                                                       (DOLLARS IN THOUSANDS)
<S>                             <C>        <C>           <C>        <C>        <C>           <C>
US Treasuries and Agencies
  Available-for-Sale:
  One year or less............   $1,198       $1,195       5.37%     $   --       $   --         --
  One to five years...........    2,969        2,953       5.98%        506          509       6.10%
  Five to ten years...........      600          572       6.14%        601          599       6.13%
US Treasuries and Agencies
  Held-to-Maturity:
  One year or less............       --           --         --          --           --         --
  One to five years...........       --           --         --          --           --         --
  Five to ten years...........       --           --         --          --           --         --
                                 ------       ------                 ------       ------
    Total Securities..........   $4,767       $4,720       5.85%     $1,107       $1,108       6.12%
                                 ======       ======                 ======       ======

<CAPTION>
                                       SEPTEMBER 30, 1998
                                ---------------------------------
                                           APPROXIMATE
                                  BOOK       MARKET         %
                                 VALUE        VALUE       YIELD
                                --------   -----------   --------
                                     (DOLLARS IN THOUSANDS)
<S>                             <C>        <C>           <C>
US Treasuries and Agencies
  Available-for-Sale:
  One year or less............   $   --       $   --         --
  One to five years...........      506          511       6.10%
  Five to ten years...........      511          610       6.13
US Treasuries and Agencies
  Held-to-Maturity:
  One year or less............
  One to five years...........      200          199       5.40%
  Five to ten years...........       --           --         --
                                 ------       ------
    Total Securities..........   $1,307       $1,320       6.01%
                                 ======       ======
</TABLE>

LOANS AND LOAN LOSS RESERVE

    Total net loans outstanding fell 2.96%, from $50,508,000 to $49,013,000
during the first nine months of 1999. There were no charge-offs during the
nine-month periods ended September 30, 1999 and 1998. The bank recorded a loan
loss provision of $779,000 during the nine months ending September 30, 1999,
compared with $75,000 for the same period in 1998. The general loan loss reserve
balance as of September 30, 1999 was $1,882,000, which equates to 3.70% of total
gross loans. This compares to corresponding loan loss reserve ratios of 2.14% at
December 31, 1998, and 1.04% at September 30, 1998. As of November 24, 1999
management also had determined to charge off non-performing assets totaling
$700,000 during the fourth quarter of 1999. Of this amount, approximately
$600,000 is covered by exisiting reserves. Management plans to continue
monitoring the bank's loan loss reserve over the coming months. Moreover,
management will continue to improve the Bank's collection and loan
administration procedures and, where necessary, will charge off non-performing
loans against the bank's strengthened reserves.

    The composition of loan balances as of September 30, 1999 is summarized as
follows:

<TABLE>
<CAPTION>
                                      SEPTEMBER 30, 1999       DECEMBER 31, 1998      SEPTEMBER 30, 1998
                                     ---------------------   ---------------------   ---------------------
                                      AMOUNT    PERCENTAGE    AMOUNT    PERCENTAGE    AMOUNT    PERCENTAGE
                                     --------   ----------   --------   ----------   --------   ----------
                                                            (DOLLARS IN THOUSANDS)
<S>                                  <C>        <C>          <C>        <C>          <C>        <C>
Commercial.........................  $34,258       69.90%    $33,561       66.45%    $28,495       59.00%
Real Estate........................   15,398       31.42%     17,328       34.31%     17,795       37.47%
Consumer and other.................    1,324        2.70%        890        1.76%      1,203        2.53%
                                     -------      ------     -------      ------     -------      ------
                                      50,980      104.02%     51,779      102.52%     47,493      101.30%
Unearned loan fee income...........      (85)      (0.17)%      (169)      (0.34)%      (117)      (0.25)%
Allowance for loan losses..........   (1,882)      (3.85)%    (1,102)      (2.18)%      (494)      (1.05)%
                                     -------      ------     -------      ------     -------      ------
                                     $49,103      100.00%    $50,508      100.00%    $46,882      100.00%
                                     =======      ======     =======      ======     =======      ======
</TABLE>

                                      B-9
<PAGE>
    The following table shows Northern Bank's loan loss experience for the
periods indicated:

<TABLE>
<CAPTION>
                                                             AS OF AND FOR THE
                                                             NINE MONTHS ENDED
                                                     ---------------------------------
                                                     SEPT. 30, 1999    SEPT. 30, 1998
                                                     ---------------   ---------------
                                                          (DOLLARS IN THOUSANDS)
<S>                                                  <C>               <C>
Loans outstanding at end of period, Net of unearned
  loan fee income..................................      $50,895           $47,376
                                                         =======           =======
Average loans outstanding for the period...........      $55,088           $44,433
                                                         =======           =======
Reserve for loan losses balance, beginning of
  year.............................................      $ 1,102           $   407
Loans charged off:
  Commercial.......................................            0                 0
  Real Estate......................................            0                 0
  Installment......................................            0                 0
  Credit cards.....................................            0                 0
                                                         -------           -------
    Total loans charged off........................            0                 0
                                                         -------           -------
Recoveries
  Commercial.......................................            0                 0
  Real Estate......................................            0                 0
  Installment......................................            0                 0
  Credit Cards.....................................            0                12
                                                         -------           -------
    Total recoveries...............................            0                12
                                                         -------           -------
Net (charge-offs) recoveries.......................            0                12
Provision charged to operations....................          780                75
                                                         -------           -------
Reserve for loan losses balance, end of period.....      $ 1,882           $   494
                                                         =======           =======
Ratio of net loans charged-off (recovered) to
  average loans outstanding........................         0.00%            (0.03)%
Ratio of reserve for loan losses to loans at end of
  period...........................................         3.70%             1.04%
</TABLE>

DEPOSITS

    Northern Bank's deposits as of September 30, 1999, were $56,024,000 compared
with $56,223,000 on December 31, 1998, a drop of less than 1%. The aggregate
amount of time certificates of deposits in denominations of $100,000 or more at
September 30, 1999, were $6,503,000 compared with $5,583,000 on December 31,
1998. Management plans to redouble its emphasis on attracting quality deposits,
and believes this emphasis will have a pronounced positive effect on the bank's
deposit base.

<TABLE>
<CAPTION>
                                                           AS OF AND FOR THE NINE MONTHS ENDED
                                             ---------------------------------------------------------------
                                                   SEPTEMBER 30, 1999               SEPTEMBER 30, 1998
                                             ------------------------------   ------------------------------
                                             AVERAGE    INTEREST     AVG.     AVERAGE    INTEREST     AVG.
                                             BALANCE    EXPENSE     % RATE    BALANCE    EXPENSE     % RATE
                                             --------   --------   --------   --------   --------   --------
<S>                                          <C>        <C>        <C>        <C>        <C>        <C>
Interest-bearing checking and savings
  accounts.................................  $24,898     $  772      4.15%    $17,794     $  595      4.46%
Time deposits..............................   27,458      1,177      5.73%     20,703        944      6.08%
                                             -------     ------      ----     -------     ------      ----
Total interest-bearing deposits............   52,356     $1,949      4.98%     38,497     $1,539      5.33%
                                                         ======      ====                 ======      ====
Total noninterest-bearing deposits.........   10,729                            7,890
                                             -------                          -------
Total noninterest and interest-bearing
  deposits.................................  $63,085                          $46,391
                                             =======                          =======
</TABLE>

                                      B-10
<PAGE>
SHAREHOLDERS' EQUITY

    Shareholders' equity at September 30, 1999 totaled $4,509,000 compared with
$4,735,000 at December 31, 1998. The decrease in equity reflects the
1999 year-to-date loss of $196,000 as well as a reduction of $30,000 for
unrealized losses on the Bank's available-for-sale investment portfolio.

    The Federal Reserve Board and the Federal Deposit Insurance Corporation have
established minimum requirements for capital adequacy for member banks and bank
holding companies. The requirements address both risk-based capital and
leveraged capital. The regulatory agencies may establish higher minimum
requirements if, for example, a bank has previously received special attention
or has a high susceptibility to interest rate risk. The cease and desist orders
have required that the bank improve its capitalization. The following reflects
Northern Bank's various capital ratios at September 30, 1999 and 1998, as
compared to applicable regulatory minimums:

<TABLE>
<CAPTION>
                                           SEPTEMBER 30,   SEPTEMBER 30,   REGULATORY
                                               1999            1998         MINIMUM
                                           -------------   -------------   ----------
<S>                                        <C>             <C>             <C>
Total Risk-Based Capital to Risk-Weighted
  Assets.................................      9.63%           10.58%         8.00%
Tier 1 Capital to Risk-Weighted Assets...      8.35%            9.61%         4.00%
Tier 1 Capital to Average Assets.........      6.35%            8.75%         4.00%
</TABLE>

    Tier 1 Capital is shareholders' equity less intangible assets. Risk-weighted
assets are the allocation of both assets and off-balance-sheet transactions and
liabilities at appropriate risk percentages. For example, funds that the bank
has on deposit at the Federal Reserve Bank are weighted at 0%, because there is
not risk of loss. Conversely, most commercial loan balances that are not
government-guaranteed are given a risk-weight of 100% because there is no
certainty of repayment. Total risk-based capital consists of Tier 1 capital plus
the loan loss reserves not exceeding 1.25% of risk-weighted assets.

ASSET-LIABILITY MANAGEMENT AND INTEREST RATE SENSITIVITY

    Northern Bank's results of operations depend substantially on net interest
income. Interest income and interest expense are affected by general economic
conditions and by competition in the marketplace. Northern Bank's interest
income and pricing strategies are driven by its asset-liability management
analysis and by local market conditions.

    Northern Bank's management seeks to manage the bank's assets and liabilities
to generate a stable level of earnings in response to changing interest rates
and to manage interest rate risk. Asset-liability management involves managing
the relationship between interest rate sensitive assets and interest rate
sensitive liabilities. If assets and liabilities do not mature or reprice
simultaneously, and in equal amounts, interest rate charges may create risk to
the bank.

    The following table sets forth the dollar amount of maturing
interest-earning assets and interest-bearing liabilities at September 30, 1999
and the difference between them for the maturing or repricing periods indicated.
The amounts in the table are derived from Northern Bank's internal data, which
varies from amounts classified in the bank's financial statements. Although the
information may be useful as a general measure of interest rate risk, the data
could be significantly affected by external factors such as prepayments of loans
or early withdrawals of deposits. Each of these may significantly

                                      B-11
<PAGE>
influence the timing and extent of actual repricing of interest-earning assets
and interest-bearing liabilities.

<TABLE>
<CAPTION>
                                                      LESS THAN   ONE YEAR
                                      VARIABLE RATE   ONE YEAR    OR LONGER    TOTAL
                                      -------------   ---------   ---------   --------
                                                   (DOLLARS IN THOUSANDS)
<S>                                   <C>             <C>         <C>         <C>
ASSETS
  Federal funds and other
    investments.....................     $ 2,500      $  1,195    $  3,525    $ 7,220
  Loans.............................      39,311         2,819       8,764     50,894
                                         -------      --------    --------    -------
    Total assets....................      41,811         4,014      12,289     58,114
                                         -------      --------    --------    -------

LIABILITIES
  Core deposits.....................       6,061        21,073      22,387     49,521
  Jumbo CD's........................           0         5,912         591      6,503
                                         -------      --------    --------    -------
    Total liabilities...............       6,061        26,985      22,978     56,024
                                         -------      --------    --------    -------

Net gap position....................     $35,750      $(22,971)   $(10,689)   $ 2,090
                                         =======      ========    ========    =======
Net cumulative gap position.........     $35,750      $ 12,779    $  2,090
                                         =======      ========    ========

Cumulative gap as a percentage of
  assets............................        58.6%         21.0%        3.4%
                                         =======      ========    ========
</TABLE>

FISCAL YEARS ENDED DECEMBER 31, 1998, 1997 AND 1996

RESULTS OF OPERATIONS

    Net interest income for the year ended December 31, 1998, was $3,007,000, an
increase of $656,000 or 27.89% compared to net interest income of $2,351,000 in
1997. Net interest income for 1997 was 18.70% higher than the $1,981,000
reported in 1996. These results were primarily due to an increase in the volume
of earning assets and the growth of noninterest-bearing deposits.

    Loans, which generally carry a higher yield than investment securities and
other earning assets, comprised the majority of average earning assets during
1998, 1997, and 1996. Average yields on loans were 10.62% in 1998, 10.52% in
1997, and 11.97% in 1996.

    Interest cost, as a percentage of earning assets, increased to 4.19% in
1998, compared to 4.10% in 1997 and 4.34% in 1996. Local urban competitive
pricing conditions and funding needs for Northern Bank's growing investments in
loans have been the primary determinants of rates paid for deposits during these
three years.

                                      B-12
<PAGE>
ANALYSIS OF NET INTEREST MARGIN

<TABLE>
<CAPTION>
                                       DECEMBER 31, 1998                DECEMBER 31, 1997                DECEMBER 31, 1996
                                 ------------------------------   ------------------------------   ------------------------------
                                 AVERAGE    INCOME/               AVERAGE    INCOME/               AVERAGE    INCOME/
                                 BALANCES   EXPENSE     % RATE    BALANCES   EXPENSE     % RATE    BALANCES   EXPENSE     % RATE
                                 --------   --------   --------   --------   --------   --------   --------   --------   --------
                                                                      (DOLLARS IN THOUSANDS)
<S>                              <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>
Interest-earning assets:
  Loans........................  $45,712     $4,852     10.62%    $35,528     $3,736     10.52%    $24,981     $2,991     11.97%
  Investment securities........    1,239         76      6.12%      2,703        164      6.07%      4,615        263      5.70%
  Federal funds sold...........    4,456        230      5.17%      1,375         74      5.38%      1,431         73      5.10%
                                 -------     ------     -----     -------     ------     -----     -------     ------     -----
    Total interest earning
      assets...................   51,407      5,158     10.03%     39,606      3,974     10.03%     31,027      3,327     10.72%
                                             ------     -----                 ------     -----                 ------     -----
Cash and due from banks........    2,165                            1,935                            1,070
Fixed assets...................       84                               81                               98
Loan loss allowance............     (483)                            (320)                            (187)
Other assets...................    1,023                              772                              470
                                 -------                          -------                          -------
Total assets...................  $54,196                          $42,074                          $32,478
                                 =======                          =======                          =======
Interest-bearing liabilities:
Interest-bearing checking and
  savings accounts.............  $18,849     $  835      4.43%    $16,961     $  737      4.35%    $11,282     $  497      4.41%
  Time deposits................   21,707      1,317      6.07%     14,617        886      6.06%     13,939        849      6.09%
                                 -------     ------     -----     -------     ------     -----     -------     ------     -----
    Total interest-bearing
      liabilities..............   40,556      2,152      5.31%     31,578      1,623      5.14%     25,221      1,346      5.34%
                                             ------     -----                 ------     -----                 ------     -----
Noninterest bearing deposits...    8,275                            6,190                            3,653
Other liabilities..............      723                              359                               63
                                 -------                          -------                          -------
Total liabilities..............   49,554                           38,127                           28,937
Shareholders' equity...........    4,642                            3,947                            3,541
                                 -------                          -------                          -------
Total liabilities and
  shareholders' equity.........  $54,196                          $42,074                          $32,478
                                 =======                          =======                          =======

Net interest income............              $3,006                           $2,351                           $1,981
                                             ======                           ======                           ======

Net interest margin (1)........                          4.73%                            4.89%                            5.39%
                                                        =====                            =====                            =====

Average yield on earning
  assets.......................                         10.03%                           10.03%                           10.72%
                                                        =====                            =====                            =====

Interest expense to earning
  assets.......................                          4.19%                            4.10%                            4.34%
                                                        =====                            =====                            =====

Net interest income to earning
  assets.......................                          5.85%                            5.94%                            6.38%
                                                        =====                            =====                            =====
</TABLE>

--------------------------

(1) Net interest margin is computed by dividing net interest income by total
    average earnings assets.

    ANALYSIS OF CHANGES IN INTEREST DIFFERENTIAL.  The following table shows the
dollar amount of the increase (decrease) in Northern Bank's net interest income
and expense and attributes such dollar

                                      B-13
<PAGE>
amounts to changes in volume as well as changes in rates. Rate and volume
variances have been allocated proportionally between rate and volume changes:

<TABLE>
<CAPTION>
                                                                       AVERAGE BALANCES               RATES (%)
                                                                ------------------------------   -------------------
                                INCREASE (DECREASE) DUE TO         DECEMBER 31,                     DECEMBER 31,
                             --------------------------------   -------------------              -------------------
                              VOLUME      RATE     NET CHANGE     1998       1997      CHANGE      1998       1997      CHANGE
                             --------   --------   ----------   --------   --------   --------   --------   --------   --------
                                                                   (DOLLARS IN THOUSANDS)
<S>                          <C>        <C>        <C>          <C>        <C>        <C>        <C>        <C>        <C>
Interest-earning assets:
  Loans....................   $1,070      $ 45       $1,116     $45,712    $35,528    $10,184     10.62%     10.52%      0.10 %
  Investment securities....      (89)        1          (88)      1,239      2,703     (1,464)     6.12%      6.07%      0.05 %
  Federal funds sold.......      165        (8)         157       4,456      1,375      3,081      5.17%      5.35%     (0.18)%
                              ------      ----                  -------    -------    -------     -----      -----      -----
    Total..................    1,146        38        1,184     $51,407    $39,606    $11,801     10.03%     10.03%      0.00 %
                              ------      ----       ------     =======    =======    =======     =====      =====      =====
Interest-bearing
  liabilities:
  Interest bearing checking
    and savings accounts...      (82)      (16)         (98)    $18,849    $16,961    $ 1,888      4.43%      4.35%      0.08 %
  Time deposits............     (430)       (1)        (431)     21,707     14,617      7,090      6.07%      6.06%      0.01 %
                              ------      ----       ------     -------    -------    -------     -----      -----      -----
  Total....................     (512)      (17)        (529)    $40,556    $31,578    $ 8,978      5.31%      5.14%      0.17 %
                              ------      ----       ------     =======    =======    =======     =====      =====      =====
Net increase (decrease) in
  net interest income......   $  634      $ 21       $  655
                              ======      ====       ======
</TABLE>

PROVISION FOR LOAN LOSSES AND LOAN LOSS EXPERIENCE

    For the years ended December 31, 1998, 1997 and 1996, Northern Bank made
provisions for loan losses of $683,000, $205,500 and $99,600, respectively. In
1998, the Bank charged no losses to the allowance for loan losses. During 1997
and 1996, the Bank charged off $29,000 and $16,000, respectively, against the
allowance for loan losses.

NON-INTEREST INCOME

    Non-interest income, which represents income from fees and service charges,
gains on sales of loans and securities, and gains on sales of premises,
furnishings and equipment, as well as other fee and service charge income, grew
from $32,000 in 1996 to $229,000 in 1997, and decreased to $184,000 in 1998. The
increase from 1996 to 1997 was principally due to gain on sale of certain
government guaranteed loans. The decrease from 1997 to 1998 was primarily due to
fewer sales of loans. Service charges for 1998 were $46,000, 58.62% higher than
the $29,000 reported in 1997; 1997 service charges exceeded the 1996 reported
services charges of $20,000 by 45.00%. In 1998, gain on sale of government
guaranteed loans represented 43.80% of total non-interest income, down from
73.60% in 1997. The table below shows a breakdown of all non-interest income by
category:

<TABLE>
<CAPTION>
                                                                    YEAR ENDING
                                                                    DECEMBER 31,
                                                           ------------------------------
                                                             1998       1997       1996
                                                           --------   --------   --------
                                                               (DOLLARS IN THOUSANDS)
<S>                                                        <C>        <C>        <C>
Service charges and fees on deposit accounts.............    $ 46       $ 29       $20
Gain on sale of loans....................................      81        169        --
Gain on sale of investments..............................       2          1        --
Gain on sale of equipment................................       8         --        --
Other income.............................................      47         30        12
                                                             ----       ----       ---

Total non-interest income................................    $184       $229       $32
                                                             ====       ====       ===
</TABLE>

                                      B-14
<PAGE>
NON-INTEREST EXPENSE

    Noninterest expense was $2,409,000 for the year ended December 31, 1998, an
increase from $2,067,000 for the year ended December 31, 1997, and $2,073,000
for the year ended December 31, 1996. The change was primarily due to increases
in salary and benefit expense, net occupancy expense, and data processing costs.
In 1998, the majority of the change was due to opening seven new full-service
limited hour branches in retirement residences. In 1998, Northern Bank's total
non-interest expense was 45.10% of total revenues, while in 1997 and 1996 it was
47.70% and 61.70%, respectively, of total revenues.

    Salary and benefit expense was $1,004,000 in 1998, $894,000 in 1997, and
$1,066,000 in 1996. As of December 31, 1998, Northern Bank had 28 full-time
equivalent employees, which compares to 20 as of December 31, 1997, and 22 as of
December 31, 1996. The increase in this expense category is a result of opening
seven retirement residence branches and of an increase in personnel necessary to
meet the demands of our growing customer base.

    Net occupancy expense consists of depreciation on equipment, maintenance and
repair expenses, utilities, and related expenses. Northern Bank's net occupancy
expense has decreased steadily over the three years most recently ended. This
expense category was $244,000 in 1998, a decrease of $91,000, or 27.10%, from
the $334,000 reported in 1997. From 1996 to 1997, net occupancy expense
decreased by $15,000, or 4.30% from $349,000 to $334,000. These decreases,
especially in 1998, reflect the first full year of benefit from the payoff of
our initial lease of equipment, furniture and computer resources. Northern Bank
continues to invest in computer systems, which have been upgraded throughout the
organization.

    Other noninterest expense increases resulted from investments in technology
and data processing and in new service delivery channels to enable us to
continue our focus on efficient, personal business services. Advertising and
promotion expense increased from $95,000 in 1996 to $134,000 in 1997, an
increase of 41.05%. In 1998, expenses in this category went up an additional
42.54% to $191,000. This growth reflects expenses we incurred in opening seven
new retirement residence branches, plus the growth of our customer and account
base. Data processing expenses increased $68,000, or 40.10%, in 1998 over the
previous year.

INCOME TAXES

    The Bank recorded income tax benefits of $22,000 in 1998, $120,000 in 1997,
and $195,000 in 1996. These benefits primarily resulted from adjustments the
Bank made to its deferred tax valuation allowance for the years then ended.

                                      B-15
<PAGE>
FINANCIAL CONDITION

                             SUMMARY BALANCE SHEETS

<TABLE>
<CAPTION>
                                              DECEMBER 31,                        INCREASE (DECREASE)
                                     ------------------------------   --------------------------------------------
                                       1998       1997       1996     12/31/98--12/31/97       12/31/97--12/31/96
                                     --------   --------   --------   -------------------      -------------------
                                                                (DOLLARS IN THOUSANDS)
<S>                                  <C>        <C>        <C>        <C>        <C>           <C>        <C>
ASSETS
  Federal funds sold...............  $ 3,675    $   200    $ 2,200    $ 3,475    1,737.50 %    $(2,000)    (90.91)%
  Investments......................    1,108      2,048      6,224       (940)     (45.90)%     (4,176)    (67.10)%
  Loans............................   50,508     40,702     29,063      9,806       24.09 %     11,639      40.05 %
  Other assets*....................    5,849      1,580      4,259      4,269      270.19 %     (2,679)    (62.90)%
                                     -------    -------    -------    -------    --------      -------     ------
  Total assets.....................  $61,140    $44,530    $41,746    $16,610       37.30 %    $ 2,784       6.67 %
                                     =======    =======    =======    =======    ========      =======     ======

LIABILITIES
  Noninterest-bearing deposits.....  $ 8,918    $ 7,698    $ 7,112    $ 1,220       15.85 %    $   586       8.24 %
  Interest-bearing deposits........   47,305     32,508     30,840     14,797       45.52 %      1,668       5.41 %
                                     -------    -------    -------    -------    --------      -------     ------
  Total deposits...................   56,223     40,206     37,952     16,017       39.84 %      2,254       5.94 %
  Other liabilities**..............      182        112         68         70       62.50 %         44      64.71 %
                                     -------    -------    -------    -------    --------      -------     ------
  Total liabilities................   56,405     40,318     38,020     16,087       39.90 %      2,298       6.04 %
SHAREHOLDERS' EQUITY...............    4,735      4,212      3,726        523       12.42 %        486      13.04 %
                                     -------    -------    -------    -------    --------      -------     ------
  Total liabilities and
    shareholders' equity...........  $61,140    $44,530    $41,746    $16,610       37.30 %    $ 2,784       6.67 %
                                     =======    =======    =======    =======    ========      =======     ======
</TABLE>

------------------------

*   Includes cash and due from banks, fixed assets, accrued interest receivable
    and loans held for sale.

**  Includes accrued interest payable and other liabilities.

INVESTMENTS

    A year-to-year comparison shows that our investment portfolio at
December 31, 1998, totaled $4,783,000, compared to $2,248,000 at December 31,
1997, and $8,424,000 at December 31, 1996. This represents an increase of
112.80% between 1997 and 1998, and a decrease of 73.00% between 1996 and 1997.
Increases or decreases in the investment portfolio are primarily a function of
loan demand and changes in Northern Bank's deposit structure.

    Northern Bank's policies require that investment securities be identified as
either held-to-maturity or available-for-sale. Held-to-maturity securities are
those that Northern Bank has the intent and ability to hold until they mature or
are called. Available-for-sale securities are those that management may sell if
liquidity requirements dictate or if alternative investment opportunities arise.
The mix of available-for-sale and held-to-maturity investment securities is
determined by management, based on Northern Bank's asset-liability policy,
management's assessment of the relative liquidity of Northern Bank, and other
factors.

    At December 31, 1998, the investment portfolio consisted entirely of
available-for-sale securities, with no held-to-maturity securities. At
December 31, 1997, Northern Bank's investment portfolio consisted of 62%
available-for-sale securities and 38% held-to-maturity securities. On
December 31, 1996, available-for-sale securities were 60% of the portfolio and
held-to-maturity securities were 40% of the portfolio. The present mix provides
greater investment flexibility by placing more of the portfolio in the
available-for-sale category.

                                      B-16
<PAGE>
    At December 31, 1998, Northern Bank's investment portfolio had total net
unrealized gains of approximately $1,000. This compares to net unrealized gains
of approximately $6,000 at December 31, 1997 and $5,000 at December 31, 1996.
Unrealized gains and losses reflect changes in market conditions and do not
represent the amount of actual profits or losses Northern Bank ultimately may
realize. Actual realized gains and losses occur at the time investment
securities are sold or redeemed.

    Federal funds sold are short-term investments, which mature on a daily
basis. Northern Bank invests in these instruments to provide for additional
earnings on excess available cash balances. Because of their short maturities,
the balance of federal funds sold fluctuates dramatically on a day-to-day basis.
The balance on any one day is influenced by cash demands, customer deposit
levels, loan activity, and other investment transactions. Investments in federal
funds sold totaled $3,675,000 at December 31, 1998, compared to $200,000 at
December 31, 1997 and $2,200,000 at December 31, 1996.

    Investment securities at the dates indicated consisted of the following:

<TABLE>
<CAPTION>
                                 DECEMBER 31, 1998                   DECEMBER 31, 1997                   DECEMBER 31, 1996
                         ---------------------------------   ---------------------------------   ---------------------------------
                                    APPROXIMATE                         APPROXIMATE                         APPROXIMATE
                           BOOK       MARKET                   BOOK       MARKET                   BOOK       MARKET
                          VALUE        VALUE      % YIELD     VALUE        VALUE      % YIELD     VALUE        VALUE      % YIELD
                         --------   -----------   --------   --------   -----------   --------   --------   -----------   --------
                                                                  (DOLLARS IN THOUSANDS)
<S>                      <C>        <C>           <C>        <C>        <C>           <C>        <C>        <C>           <C>
US treasuries and
  agencies
  available-for-sale:
  One year or less.....   $   --      $   --          --      $  250      $  250        5.51%     $1,486      $1,486        5.50%
  One to five years....      506         509        6.10%        999       1,002        6.45%      2,239       2,244        6.10%
  Five to ten years....      601         599        6.13%         --          --          --          --          --          --

US treasuries and
  agencies held-to-
  maturity:
  One year or less.....       --          --          --         596         598        6.30%      1,704       1,706        5.58%
  One to five years....       --          --          --         200         197        5.40%        789         787        6.09%
  Five to ten years....       --          --          --          --          --          --          --          --          --
                          ------      ------                  ------      ------                  ------      ------
    Total securities...   $1,107      $1,108        6.12%     $2,045      $2,047        6.17%     $6,218      $6,223        5.81%
                          ======      ======                  ======      ======                  ======      ======
</TABLE>

LOANS

    Northern Bank's loan policies and procedures establish the basic guidelines
governing lending operations. Generally, the guidelines address the types of
loans we seek, our target markets, underwriting and collateral requirements,
terms, interest rate and yield considerations, and compliance with laws and
regulations. All loans or credit lines are subject to approval procedures and
amount limitations. These limitations apply to the borrower's total outstanding
indebtedness to Northern Bank, including the indebtedness of any guarantor. The
policies are reviewed and approved at least annually by our Board of Directors.
We supplement our own supervision of the loan underwriting and approval process
with annual audited financial statements from experienced outside professionals.

    Branch officers are charged with loan origination in compliance with
underwriting standards overseen by Northern Bank's credit administration
department and in conformity with established loan policies. On an annual basis,
the Board of Directors determines our authority and delegates lending authority
to the internal loan committee. Northern Bank's internal loan committee consists
of the President and the Vice President, Commercial Lending. Delegated authority
to the internal loan committee may include authority related to loans, letters
of credit, overdrafts, uncollected funds, and such other authority as determined
by the Board.

                                      B-17
<PAGE>
    The Vice President, Commercial Lending, has authority as Credit
Administrator to approve loans up to a lending limit set by the Board of
Directors, which was $300,000 at December 31, 1998. All loans above the Credit
Administrator's lending limit and up to $500,000 on business loans, or up to
$750,000 on real estate loans, are approved by the Bank's internal loan
committee. Loans that exceed the pre-established lending limits must be
conditionally approved by Northern Bank's internal loan committee, and are then
subject to final approval by the Board's loan committee. Minutes from Northern
Bank's internal loan committee and the Board's loan committee meeting are
reviewed by the full Board of Directors at regularly scheduled monthly meetings.
The Board's loan committee consists of two outside directors and the President.
Northern Bank's legal lending limit as of December 31, 1998 was $710,000 for
business loans and $1,180,000 for loans secured by real estate.

    Net outstanding loans totaled $50,508,000 at December 31, 1998, representing
an increase of $9,806,000, or 24.10%, compared to $40,702,000 at December 31,
1997. Loan commitments grew to $15,979,000 as of December 31, 1998, representing
an increase of $5,919,000 over year-end 1997.

    Northern Bank's net loan portfolio at December 31, 1998 includes commercial
loans (64.60%), loans secured by real estate (34.31%) and other loans (1.77%).
These percentages are generally consistent with previous reporting periods.
Loans secured by real estate include loans made for purposes other than
construction loans and financing purchases of real property, while commercial
loans are made for the purposes such as accounts receivable, inventory financing
and equipment purchases. In some case, real property serves as collateral for
these loans.

    This table presents the composition of Northern Bank's loan portfolio at the
dates indicated:

<TABLE>
<CAPTION>
                                     DECEMBER 31, 1998          DECEMBER 31, 1997          DECEMBER 31, 1996
                                   ---------------------      ---------------------      ---------------------
                                    AMOUNT    PERCENTAGE       AMOUNT    PERCENTAGE       AMOUNT    PERCENTAGE
                                   --------   ----------      --------   ----------      --------   ----------
                                                             (DOLLARS IN THOUSANDS)
<S>                                <C>        <C>             <C>        <C>             <C>        <C>
Commercial.......................  $33,561       66.45 %      $22,912       56.29 %      $17,982       61.87 %
Real estate loans:
  Commercial property............    1,129        2.23 %        1,510        3.72 %        1,457        5.01 %
  Land development...............    6,301       12.47 %        3,931        9.66 %        2,485        8.55 %
  Construction...................    9,605       19.02 %        8,531       20.96 %        5,241       18.03 %
  Residential....................      293        0.58 %        2,359        5.80 %        1,718        5.92 %
                                   -------      ------        -------      ------        -------      ------
    Total real estate............   17,328       34.31 %       16,331       40.13 %       10,901       37.51 %

Consumer.........................      584        1.16 %        1,059        2.60 %          378        1.30 %
Other............................      306        0.61 %          920        2.24 %          101        0.35 %
                                   -------      ------        -------      ------        -------      ------
    Total loans..................   51,779      102.52 %       41,222      101.26 %       29,362      101.03 %

Less deferred loan fees..........     (169)      (0.34)%         (113)      (0.27)%          (69)      (0.24)%
Less reserve for loan losses.....   (1,102)      (2.18)%         (407)      (0.99)%         (230)      (0.79)%
                                   -------      ------        -------      ------        -------      ------
Loans receivable, net............  $50,508      100.00 %      $40,702      100.00 %      $29,063      100.00 %
                                   =======      ======        =======      ======        =======      ======
</TABLE>

                                      B-18
<PAGE>
    The following table shows the maturities and sensitivity of Northern Bank's
loans to changes in interest rates as of December 31, 1998:

<TABLE>
<CAPTION>
                                                  DUE AFTER ONE
                                    DUE IN ONE    YEAR THROUGH    DUE AFTER
                                   YEAR OR LESS    FIVE YEARS     FIVE YEARS   TOTAL LOANS
                                   ------------   -------------   ----------   -----------
                                                   (DOLLARS IN THOUSANDS)
<S>                                <C>            <C>             <C>          <C>
Commercial loans.................     $26,778        $5,760         $1,023       $33,561
Real estate loans
  Commercial property............         894           235             --         1,129
  Land development...............       5,904           163            234         6,301
  Construction...................       9,605            --             --         9,605
  Residential....................          --           190            103           293
                                      -------        ------         ------       -------
    Total real estate loans......      16,403           588            337        17,328
                                      -------        ------         ------       -------
Installment......................         315           269            584
Other............................         306            --             --           306
                                      -------        ------         ------       -------
    Total loans..................     $43,802        $6,617         $1,360       $51,779
                                      =======        ======         ======       =======

Fixed interest rate loans........                                                $10,013
                                                                                 =======

Variable interest rate loans.....                                                $41,769
                                                                                 =======
</TABLE>

LOAN LOSSES AND RECOVERIES

    The reserve for loan losses is established by providing for loan losses as a
charge against expenses. Loans are charged against the reserve for loan losses
when management believes it is unlikely that we will collect all or part of the
principal. The reserve is an amount management believes will be adequate to
absorb possible losses on existing loans that may become uncollectible, based on
our evaluation of the collectibility of loans and prior loan loss experience.
The evaluations take into consideration a number of factors, including changes
in the nature and volume of our loan portfolio, overall portfolio quality,
review of specific problem loans, and current economic conditions that may
affect the borrower's ability to repay. Accrual of interest is discontinued on a
loan when management believes, after considering economic and business
conditions, collection efforts and collateral position, that the borrower's
financial condition is such that collection of interest is doubtful. In
addition, Northern Bank seeks to guard against regional financial instability
for the Portland, Oregon, metropolitan area for both the general market and our
own customer base. Finally, in 1998 we gave very special attention and
consideration to the fact that for more than four years Northern Bank has been
one of our market's fastest-growing financial institutions in a market that has
been marked by a very long period of growth and prosperity.

    Even though we maintain policies, procedures and personnel dedicated to
recording and maintaining quality commercial and real estate credits, we take
into account the special risks inherent in lending to small businesses and
residential real estate developers, especially in a market that has sustained a
growth rate as significant and consistent as has the Portland market. In
reviewing our loan portfolio on December 31, 1998, we considered these factors,
specifically forecasts projecting a potential economic downturn for the Portland
metropolitan area and similar actions of competing Banks reviewing the same
economic projections, Northern Bank decided to increase its loan loss reserves
from $206,000 in 1997 to $683,000 in 1998.

                                      B-19
<PAGE>
    Northern Bank's provision for loan losses was $683,000, $206,000, and
$100,000 as of December 31, 1998, 1997, and 1996, respectively.

    The following table shows Northern Bank's loan loss experience for the
periods indicated:

<TABLE>
<CAPTION>
                                                                  YEARS ENDED DECEMBER 31,
                                                               -------------------------------
                                                                 1998       1997       1996
                                                               ---------  ---------  ---------
                                                                   (DOLLARS IN THOUSANDS)
<S>                                                            <C>        <C>        <C>
Loans outstanding at end of period, net of unearned loan fee
  income.....................................................  $  51,610  $  41,109  $  29,293
                                                               =========  =========  =========
Average loans outstanding for the period.....................  $  45,712  $  35,528  $  24,981
                                                               =========  =========  =========
Reserve for loan losses balance, beginning of year...........  $     407  $     230  $     147
Loans charged off:
  Commercial.................................................          0          0          0
  Real estate................................................          0          0          0
  Installment................................................          0          0          0
  Credit cards...............................................          0        (29)       (16)
                                                               ---------  ---------  ---------
    Total loans charged off..................................          0        (29)       (16)
                                                               ---------  ---------  ---------
Recoveries
  Commercial.................................................          0          0          0
  Real estate................................................          0          0          0
  Installment................................................          0          0          0
  Credit cards...............................................         12          0          0
                                                               ---------  ---------  ---------
    Total recoveries.........................................         12          0          0
                                                               ---------  ---------  ---------
Net (charge-offs) recoveries.................................         12        (29)       (16)
Provision charged to operations..............................        683        206        100
                                                               ---------  ---------  ---------
Reserve for loan losses balance, end of period...............  $   1,102  $     407  $     230
                                                               =========  =========  =========
Ratio of net loans charged-off (recovered) to average loans
  outstanding................................................      (0.03%)      0.08%      0.06%
Ratio of reserve for loan losses to loans at end of period...       2.14%      0.99%      0.79%
</TABLE>

    The adequacy of our reserve for loan losses should be measured in the
context of several key ratios: (1) the ratio of the reserve to total outstanding
loans; (2) the ratio of total nonperforming loans to total loans; and, (3) the
ratio of net charge-offs (recoveries) to average loans outstanding. Since 1996,
Northern Bank's ratio of the reserve for loan losses to total loans has ranged
from 0.79% to 2.14%. The amounts provided by these ratios have been sufficient
to fund Northern Bank's charge-offs, which have not historically been material,
and to provide for potential losses as the loan portfolio has grown. These
ratios have also been consistent with the level of nonperforming loans to total
loans. From December 31, 1996 through December 31, 1998, nonperforming loans to
total loans have ranged from a low of none to a high of 0.88%. This experience
tracks with changes in the ratio of the reserve for loan losses to total loans
and with the actual balances maintained in the reserve account.

    Northern Bank has procedures to identify and monitor restructured loans.
Loan revisions and modifications are commonly provided to meet the credit needs
of borrowers in weakened financial condition and to enhance ultimate collection.
As of December 31, 1998, Northern Bank identified no loans that had been
classified as restructured.

                                      B-20
<PAGE>
    At each year ended December 31, 1998, 1997, 1996, Northern Bank had no
assets in the other real estate owned ("OREO") category, which represents assets
held through loan foreclosure or recovery activities.

DEPOSITS

    The following table sets forth the average balances of Northern Bank's
interest-bearing deposits, interest expense, and average rates paid for the
periods indicated:
<TABLE>
<CAPTION>
                                                                          YEARS ENDED
                                  --------------------------------------------------------------------------------------------
                                         DECEMBER 31, 1998                  DECEMBER 31, 1997             DECEMBER 31, 1996
                                  -------------------------------  -----------------------------------  ----------------------
                                   AVERAGE   INTEREST     AVG.      AVERAGE    INTEREST       AVG.       AVERAGE    INTEREST
                                   BALANCE    EXPENSE    % RATE     BALANCE     EXPENSE      % RATE      BALANCE     EXPENSE
                                  ---------  ---------  ---------  ---------  -----------  -----------  ---------  -----------
                                                                     (DOLLARS IN THOUSANDS)
<S>                               <C>        <C>        <C>        <C>        <C>          <C>          <C>        <C>
Interest-bearing checking and
  savings accounts..............  $  18,849  $     835       4.43% $  16,961   $     737         4.35%  $  11,282   $     497
Time deposits...................     21,707      1,317       6.07%    14,617         886         6.06%     13,939         849
                                  ---------  ---------             ---------   ---------                ---------   ---------
Total interest-bearing
  deposits......................     40,556  $   2,152       5.31% $  31,578   $   1,623         5.14%  $  25,221   $   1,346
                                             =========                         =========                            =========
Total noninterest-bearing
  deposits......................      8,275                            6,190                                3,653
                                  ---------                        ---------                            ---------
Total noninterest and interest
  bearing deposits..............  $  48,831                        $  37,768                            $  28,874
                                  =========                        =========                            =========

<CAPTION>
                                     AVG.
                                    % RATE
                                  -----------
<S>                               <C>
Interest-bearing checking and
  savings accounts..............        4.41%
Time deposits...................        6.09%
Total interest-bearing
  deposits......................        5.34%
Total noninterest-bearing
  deposits......................
Total noninterest and interest
  bearing deposits..............
</TABLE>

    Deposits increased from December 31, 1997, to December 31, 1998, by
$16,017,000, or 39.84% to $56,223,000. Management attributes this increase to
Northern Bank's ongoing marketing efforts, the opening of our retirement
residence branches, and to continued customer dissatisfaction with customers of
super-regional banks as a result of the perceived declining service levels. We
experienced increases in all three deposit categories: non-interest-bearing
deposits (15.90% increase), interest-bearing demand deposits and other (19.10%
increase), and time deposits (80.10% increase).

    At December 31, 1997, total deposits were $40,206,000, an increase of
$2,254,000 or 5.94%, from total deposits of $37,952,000 at December 31, 1996.
Our deposit growth in 1997 resulted from a combination of pricing strategies and
increased marketing.

    The growth in deposit accounts was primarily in interest-bearing and
noninterest-bearing demand accounts. Non-interest-bearing demand deposits, also
called "core deposits," continued to be an important portion of Northern Bank's
deposit base. To the extent we can fund operations with core deposits, our net
interest spread, which is the difference between interest income and interest
expense, will improve. At December 31, 1998, core deposits accounted for 15.90%
of total deposits, down slightly from 19.10% as of December 31, 1997 and 18.70%
as of December 31, 1996.

    Interest-bearing deposits consist of money market, savings, and time
certificate accounts. Interest-bearing account balances tend to grow or decline
as we adjust our pricing and product strategies based on market conditions,
including competing deposit products. At December 31, 1998, total interest-
bearing deposit accounts were $47,305,000, an increase of $14,797,000, or
45.50%, from December 31, 1997. From December 31, 1996 interest-bearing deposits
increased by $1,668,000 or 5.40% to $32,508,000 as of December 31, 1997.
Increases were strong in all interest-bearing deposit categories, including
money market accounts, and time deposits. Interest-bearing demand accounts
increased $3,513,000, or 19.10%, from December 31, 1997 to 1998, and $2,066,000,
or 12.60%, from 1996 to 1997. The growth in these deposits has, in management's
opinion, been helped by continued customer perceptions of declining service
levels provided by super-regional bank competitors together with opening seven
retirement residence branches.

                                      B-21
<PAGE>
    Northern Bank has brokered deposits and high-priced time deposits, but does
not actively seek new brokered deposits. At December 31, 1998, time certificates
of deposits of $100,000 or more totaled $5,583,000, or 9.90% of total
outstanding deposits, compared to $5,352,000, or 13.30%, of total outstanding
deposits at December 31, 1997 and $5,809,000, or 15.30%, of total outstanding
deposits at December 31, 1996.

    The following table sets forth, by year of maturity, all time certificates
of deposit accounts outstanding at December 31, 1998 (in thousands):

<TABLE>
<CAPTION>
YEAR OF MATURITY                                                    AMOUNT MATURING
------------------------------------------------------------------  ----------------
<S>                                                                 <C>
1999..............................................................     $   17,072
2000..............................................................          6,784
2001..............................................................          1,016
2002..............................................................            493
                                                                       ----------
Total.............................................................     $   25,365
                                                                       ==========
</TABLE>

    SHORT-TERM BORROWINGS.  Northern Bank has no short-term borrowings.

    SHAREHOLDERS' EQUITY.  Shareholders' equity increased $523,000 during 1998.
Shareholders' equity at December 31, 1998, was $4,735,000 compared to $4,212,000
at December 31, 1997. This increase reflects net income and an increase due to
exercise of stock options.

    During 1998 an 11 1/2-for-10 stock split was declared and became effective
April 20, 1998. There have been no other material changes to Northern Bank's
capitalization since December 31, 1994.

ASSET-LIABILITY MANAGEMENT/INTEREST RATE SENSITIVITY

    The following table sets forth the dollar amount of maturing
interest-earning assets and interest-bearing liabilities at December 31, 1998,
and the difference between them for the maturing or repricing periods indicated.
The amounts in the table are derived from Northern Bank's internal data, which
varies from amounts classified in our financial statements. Although the
information may be useful as a general measure of interest rate risk, the data
could be significantly affected by external factors such as prepayments of loans
or early withdrawals of deposits. Each of these may significantly influence the
timing and extent of actual repricing of interest-earning assets and
interest-bearing liabilities.

<TABLE>
<CAPTION>
                                                                                  LESS THAN    ONE YEAR
                                                                      IMMEDIATE    ONE YEAR   OR LONGER     TOTAL
                                                                     -----------  ----------  ----------  ---------
                                                                                 (DOLLARS IN THOUSANDS)
<S>                                                                  <C>          <C>         <C>         <C>
ASSETS
  Federal funds and other investments..............................   $   3,675   $       --  $    1,108  $   4,783
Loans..............................................................      41,766        2,036       7,977     51,779
                                                                      ---------   ----------  ----------  ---------
  Total assets.....................................................      45,441        2,036       9,085     56,562
LIABILITIES
  Core deposits....................................................       6,172       19,178      25,290     50,640
  Jumbo CD's.......................................................          --        4,067       1,516      5,583
                                                                      ---------   ----------  ----------  ---------
    Total liabilities..............................................       6,172       23,245      26,806     56,223
                                                                      ---------   ----------  ----------  ---------
                                                                      $  39,269   $  (21,209) $  (17,721) $     339
                                                                      =========   ==========  ==========  =========
Net cumulative position............................................   $  39,269   $   18,060  $      339
                                                                      =========   ==========  ==========
Cumulative gap as a percentage of assets...........................        64.2%        29.5%        0.6%
                                                                      =========   ==========  ==========
</TABLE>

                                      B-22
<PAGE>
    Northern Bank's sensitivity to increases or decreases in future interest
income and expense due to hypothetical increases or increases in interest rates
is as follows at December 31, 1998:

<TABLE>
<CAPTION>
           Increase (Decrease)                         Financial Impact on
            In Interest Rates                          Net Interest Margin
------------------------------------------  ------------------------------------------
<S>                                         <C>
                   +2%                                      $ (2,000)
                   +1%                                       (24,000)
                   -1%                                       (48,000)
                   -2%                                       (50,000)
</TABLE>

LIQUIDITY

    Northern Bank has implemented procedures and policies to maintain a
relatively liquid position to enable us to respond to changes in the financial
environment and to ensure sufficient funds are available to meet customers'
needs for borrowing and deposit withdrawals. Generally, Northern Bank's major
sources of liquidity are customer deposits, sales and maturities of investment
securities, the use of federal funds markets, and net cash provided by operating
activities. Scheduled loan repayments are a very stable source of funds. Deposit
inflows and unscheduled loan prepayments, which are influenced by general
interest rate levels, interest rates available on other investments,
competition, economic conditions, and other factors, are not. Liquid asset
balances include cash, amounts due from other Banks, federal funds sold, and
nonpledged securities available-for-sale. At December 31, 1998, these liquid
assets totaled $8,325,000 or 13.60% of total assets as compared to $2,169,000 or
4.90% of our total assets at December 31, 1997.

    Cash from operating activities included net income of $120,000 in 1998, and
is adjusted for noncash items and increases or decreases in cash due to changes
in certain assets and liabilities. Investing activities consist primarily of
proceeds from sales and expenditures for purchases of securities, as well as the
impact of the net growth in loans. Financing activities present the cash flows
associated with deposit accounts and the exercise of stock options.

    At December 31, 1998, Northern Bank had outstanding loan commitments of
$15,979,000. Nearly all of these commitments represented unused portions of
credit lines available to presold construction loans, and to business credit
facilities and revolving loans. Many of these credit lines will not be fully
drawn upon and, accordingly, the aggregate commitments do not necessarily
represent future cash requirements. Management believes that Northern Bank's
sources of liquidity are more than adequate to meet likely calls on outstanding
commitments; however, there can be no assurance in this regard.

CAPITAL

    The Federal Reserve Board and the Federal Deposit Insurance Corporation have
established minimum requirements for capital adequacy for Bank holding companies
and member Banks. The requirements address both risk-based capital and leveraged
capital. The regulatory agencies may establish higher minimum requirements if,
for example, a Bank has previously received special attention or has a high
susceptibility to interest rate risk.

                                      B-23
<PAGE>
    The following reflects Northern Bank's various capital ratios at
December 31, 1998, 1997 and 1996, as compared to regulatory minimums:

<TABLE>
<CAPTION>
                                                                                        DECEMBER 31,
                                                                               -------------------------------   REGULATORY
                                                                                 1998       1997       1996        MINIMUM
                                                                               ---------  ---------  ---------  -------------
<S>                                                                            <C>        <C>        <C>        <C>
Total risk-based capital to risk-weighted assets.............................       9.60%     11.26%     13.11%        8.00%
Tier 1 capital to risk-weighted assets.......................................       8.34%     10.23%     12.29%        4.00%
Tier 1 capital to average assets.............................................       7.57%      8.95%      8.88%        4.00%
</TABLE>

THE YEAR 2000 ISSUE

    The Year 2000 "bug" creates potential challenges for the automated systems
used by financial institutions and other companies. Many software programs and
business systems are not able to recognize "2000" as a calendar year because
they were designed to store calendar years in the 1900's by assuming the "19"
and storing only the last two digits of the year. For example, these automated
systems would recognize a year stored as "00" as the year "1900," rather than as
the year "2000". If these automated systems are not appropriately re-coded,
updated, or replaced before January 1, 2000, they may confuse data, or fail
totally or partially. In addition, many software programs and automated systems
may fail to recognize the Year 2000 as a leap year. The issue is not limited to
computer systems. Year 2000 issues may affect every system that has an embedded
microchip, including automated teller machines, elevators and vaults. Moreover,
businesses may be harmed or interrupted by litigation and liability to third
parties for failures to address their Year 2000 issues before problems occur.

    NORTHERN BANK'S STATE OF READINESS.  Management has completed an assessment
of the Bank's automated systems and has implemented a plan to resolve these
issues, including purchasing appropriate computer technology where necessary.
Northern Bank's Year 2000 Plan has five phases. These phases are awareness,
assessment, renovation, testing and implementation. Management has completed
these phases in all material respects and currently are conducting the
appropriate follow-up activities. Northern Bank will continue to monitor all
areas and systems for compliance through December 31, 1999 and beyond.

       - AWARENESS. Management began implementing the Bank's Year 2000 Plan in
         1997 by creating a Year 2000 Task Force to encompass all areas of the
         Bank's operations. Primary responsibility for the project was assigned
         to the Senior Vice President for Administration under the supervision
         of the Board of Directors. Northern Bank has completed several projects
         designed to promote Year 2000 awareness throughout its organization and
         customer base. Management has sent Client Questionnaire and Assessment
         documents to specific credit clients to help customers and the Bank
         assess their Year 2000 readiness, and these documents are now part of
         all credit requests. Northern Bank also has mailed to customers
         brochures prepared by the FDIC explaining what the date change means to
         those customers and their financial institutions, and the Bank has
         included articles on Year 2000 in the quarterly newsletter it
         distributes to clients.

       - ASSESSMENT. Management also undertook to assess all mission critical
         applications that could potentially be negatively affected by dates in
         the Year 2000 and beyond. The assessment phase is complete and
         management will continue to monitor this area as appropriate. Northern
         Bank examined a number of systems during this phase, including
         telecommunications systems, account processing applications, and other
         hardware and software used in connection with customer accounts.
         Northern Bank's operations, like those of many other companies, are
         intertwined with the operations of certain of the Bank's business
         partners. Accordingly, the Bank's operations could be materially
         affected if there is

                                      B-24
<PAGE>
         a material defect in the systems of providers of the Bank's mission
         critical applications, systems, and services. For example, the Bank
         depends on vendors who provide equipment, technology, and software for
         its business operations. If these software vendors fail to achieve Year
         2000 readiness, the Bank may suffer the effects of these failures. In
         addition, lawsuits and other financial challenges materially affecting
         the financial viability of the Bank's vendors could materially affect
         Northern Bank. In response to this concern, management has identified
         and contacted those vendors who provide mission-critical applications.
         Northern Bank has assessed those parties' Year 2000 compliance efforts
         and will continue to monitor their progress as the Year 2000
         approaches. Four major vendors provide support for the Bank's systems
         and processing at Northern Bank. These vendors have provided the Bank
         with written documentation detailing their efforts and progress,
         including testing, in order that they meet their Year 2000 compliance
         deadlines and requirements. In addition, the Bank's primary service
         bureau provider falls under the auspices of the FDIC, and as such its
         plans and testing must also meet the rigorous standards and timeframes
         established by that agency.

       - RENOVATION. This phase involves refurbishing, repairing, and improving
         any software and hardware identified during the assessment process as
         posing a potential problem for the Bank's operations. During this
         phase, Northern Bank has upgraded or replaced mission-critical hardware
         and software with Y2K compliant applications those items found to be
         unacceptable during the assessment phase.

       - TESTING. Northern Bank has completed testing its mission-critical
         systems and has found that dates on, during and after December 31, 1999
         are being recognized and processed accurately. The Bank also has
         completed testing renovations and new systems, and will test any new
         systems that may be added on or before December 31, 1999.

       - IMPLEMENTATION. This phase involves integrating those applications and
         systems that have been tested and deemed Y2K compliant. This activity
         has been completed and review will continue throughout the year.
         Additional follow up activities may take place in the Year 2000 and
         beyond.

    - COSTS TO ADDRESS YEAR 2000 ISSUE. Management does not anticipate having to
      purchase any material additional hardware or software to meet the Bank's
      Year 2000 needs. Northern Bank upgraded its hardware in 1997, and its
      software applications have been upgraded periodically. While management
      believes the Bank's Year 2000 Plan is substantially complete, the Bank may
      incur additional costs in addressing unforeseen problems or in rectifying
      problems that arise with new equipment. There can be no assurance that
      expenses associated with the Year 2000 Issues will not have a material
      adverse impact on Northern Bank.

    - CONTINGENCY PLAN. Management has designated a Year 2000 Task Force
      consisting of the Chief Operating Officer and the managers of the various
      internal departments to manage the Bank's contingency plans for Year 2000
      issues (the "Contingency Plan"). The Task Force has worked with the Bank's
      computer support vendor to assist in Year 2000 and Contingency Plan
      matters, and continues to provide monthly reports to executive management
      and the Board of Directors.

    Management has analyzed the risks to the Bank for each of the Bank's core
business processes, paying particular attention to the status of Year 2000
readiness efforts. Northern Bank also has investigated the potential financial
and marketing impact of the loss of one or more of the Bank's core business
processes, including the potential impact that loss might have on the Bank's
viability. In reviewing its Inventory and Risk Assessment Matrices, and
considering the Bank's reliance on a service bureau provider, management's
recovery plan is to convert from the Bank's primary processor to an established,
viable alternative processor within established timeframes. Management has
completed testing of the Bank's primary processor and has reported the results
to the Bank's Y2K Contingency

                                      B-25
<PAGE>
Planning Team, senior management, and the Board of Directors. Management has
discovered that the Bank's primary processor is Y2K compliant and has therefore
elected not to convert to an alternative processor. The estimated cost savings
as a result has been approximately $25,000 to $30,000. In the event of an
extended power loss, the Bank has the ability to switch quickly to a manual
system to process transactions and continue operations. Management has purchased
and will store adequate supplies during the third quarter of 1999, and the Bank
has begun training its staff on a manual transaction processing system. This
training will continue throughout the Bank's fourth quarter.

    Northern Bank has made plans to ensure that management has sufficient funds
available to satisfy clients' needs if unusual needs occur in late 1999 and into
the Year 2000. In addition to Federal Funds, the Bank will have committed lines
of credit from correspondent Banks totaling $1.25 million and the Bank has
access to an additional $1.5 million at the discount window with the Federal
Reserve Bank. Management does not anticipate any disruptions to the Bank's cash
distribution systems since the Bank do not utilize ATMs or third party vendors
for this function. The Bank will, however, address the potential for this
disruption by evaluating clients' needs and determining what, if any, additional
vault cash reserves will be needed prior to the end of 1999 and into 2000.
Additionally, because most of the Bank's clients are non-retail business
accounts, the Bank does not expect a heavy year-end cash demand.

                                      B-26
<PAGE>
PRINCIPAL HOLDERS OF NORTHERN BANK COMMON STOCK; SECURITY OWNERSHIP OF CERTAIN
  BENEFICIAL OWNERS AND MANAGEMENT

    The following table shows, as of September 30, 1999, the number and
percentage of outstanding shares of Northern Bank common stock beneficially
owned by each person known to Northern Bank to be the beneficial owner of more
than five percent of the outstanding Northern Bank common stock, by each
director and executive officer of Northern Bank, and by all directors and
executive officers of Northern Bank as a group. The number of shares
beneficially owned is deemed to include shares of Northern Bank common stock as
to which the beneficial owner has either investment or voting power. Unless
otherwise indicated, and except for voting and investment powers held jointly
with a person's spouse, the persons and entities named in the table have sole
voting and investment power with respect to all shares of common stock shown as
beneficially owned by them.

<TABLE>
<CAPTION>
                                                                          SHARES    PERCENTAGE
                                                                         ---------  -----------
<S>                                                                      <C>        <C>
                                                                                 0           *
James A. Wills.........................................................          0           *
John H. Holloway, Jr.(3)...............................................      2,185           *
William V. Spicer(3)...................................................      2,185           *
John Walrod(4).........................................................      2,300           *
Christopher Brown(4)...................................................      5,750           *
Kurt Wollenberg(5).....................................................        575           *
Reliable Credit Association(6).........................................    138,000       11.26
All directors and executive officers as a group (6 persons)(7).........     12,995        1.03
</TABLE>

------------------------

*   Less than 1%

(1) Unless otherwise indicated, the address of each shareholder is care of
    Northern Bank of Commerce, 1001 S.W. Fifth Avenue, Suite 250, Portland, OR
    97204.

(2) Calculated pursuant to Rule 13d-3(d) under the Securities Exchange Act of
    1934, as amended. Shares not outstanding that are subject to options
    exercisable by the holder thereof within 60 days of September 30, 1999 are
    deemed outstanding for the purposes of calculating the number and percentage
    owned by such shareholder, but not deemed outstanding for the purpose of
    calculating the percentage owned by each other shareholder listed. Unless
    otherwise noted, all shares listed as beneficially owned by a shareholder
    are actually outstanding.

(3) Includes options exercisable to purchase 2,185 shares of common stock within
    60 days of September 30, 1999.

(4) Includes options exercisable to purchase 2,300 shares of common stock within
    60 days of September 30, 1999.

(5) Includes options exercisable to purchase 5,750 shares of common stock within
    60 days of September 30, 1999.

(6) Includes options exercisable to purchase 575 shares of common stock within
    60 days of September 30, 1999.

(7) Includes options exercisable to purchase 12,995 shares of common stock
    within 60 days of September 30, 1999.

NOTE REGARDING FORWARD LOOKING STATEMENTS

    Certain statements contained in this joint proxy statement, including
statements regarding the anticipated development of the Northern Bank's business
and performance of certain of its holdings, as

                                      B-27
<PAGE>
well as the intent, belief, or current expectations of Northern Bank and the
bank's management with respect to operating performance and holdings, are
intended to provide a reference as to management's anticipations regarding
future events. Because risk and uncertainties accompany those statements, actual
results will differ from Northern Bank's expectations, and those variations may
be material and adverse. Factors that could cause actual results to differ
materially and adversely from those expressed or implied in those
forward-looking statements include, but are not limited to, the issues discussed
in "Risk Factors," above, as well as the risk factors discussed in the bank's
Annual Report on Form 10-KSB for the fiscal year ended December 31, 1998, its
Quarterly Report on Form 10-QSB on and for the period ended September 30, 1999,
and in other filings made by the bank with the Federal Deposit Insurance
Corporation ("FDIC") and the NASDAQ Stock Market.

                          INDEPENDENT AUDITOR'S REPORT

To the Board of Directors
Northern Bank of Commerce

    We have audited the accompanying balance sheets of Northern Bank of Commerce
as of December 31, 1998 and 1997, and the related statements of income and
comprehensive income, changes in shareholders' equity, and cash flows for the
years ended December 31, 1998, 1997, and 1996. These financial statements are
the responsibility of the Bank's management. Our responsibility is to express an
opinion on these financial statements based on our audits.

    We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audits to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

    In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of Northern Bank of Commerce as
of December 31, 1998 and 1997, and the results of its operations and cash flows
for the years ended December 31, 1998, 1997, and 1996, in conformity with
generally accepted accounting principles.

Portland, Oregon
January 15, 1999

                                      B-28
<PAGE>
                           NORTHERN BANK OF COMMERCE

                                 BALANCE SHEETS

                                     ASSETS

<TABLE>
<CAPTION>
                                                                                             DECEMBER 31,
                                                                      SEPTEMBER 30,  ----------------------------
                                                                          1999           1998           1997
                                                                      -------------  -------------  -------------
                                                                       (UNAUDITED)
<S>                                                                   <C>            <C>            <C>
Cash and due from banks.............................................  $   3,704,403  $   3,541,558  $     717,158
Federal funds sold..................................................      2,500,000      3,675,000        200,000
                                                                      -------------  -------------  -------------
  Total cash and cash equivalents...................................      6,204,403      7,216,558        917,158
Investment securities held-to-maturity..............................             --             --        795,619
Investment securities, available-for-sale...........................      4,719,886      1,108,376      1,252,145
Receivable from loan participation..................................             --      1,379,200             --
Loans, net of unearned income and allowance for loan losses.........     49,012,395     50,507,773     40,701,796
Premises, furniture, and equipment, net.............................        106,711         91,233         68,295
Accrued interest receivable and other assets........................        943,122        815,866        743,148
Organizational costs, net of amortization...........................             --         20,704         51,761
                                                                      -------------  -------------  -------------
  Total assets......................................................  $  60,986,517  $  61,139,710  $  44,529,922
                                                                      =============  =============  =============
</TABLE>

                      LIABILITIES AND SHAREHOLDERS' EQUITY

<TABLE>
<CAPTION>
                                                                                             DECEMBER 31,
                                                                      SEPTEMBER 30,
                                                                          1999           1999           1998
                                                                      -------------  -------------  -------------
                                                                       (UNAUDITED)
<S>                                                                   <C>            <C>            <C>
LIABILITIES
  Demand deposits...................................................  $   9,849,488  $   8,918,052  $   7,697,695
  Money market and other interest-bearing accounts..................     21,557,899     21,940,355     18,427,395
  Time deposits.....................................................     24,616,831     25,364,831     14,080,767
                                                                      -------------  -------------  -------------
    Total deposits..................................................     56,024,218     56,223,238     40,205,857
  Accrued interest payable and other liabilities....................        453,596        181,606        112,544
                                                                      -------------  -------------  -------------
    Total liabilities...............................................     56,477,814     56,404,844     40,318,401
                                                                      -------------  -------------  -------------
COMMITMENTS AND CONTINGENCIES (Note 12)

SHAREHOLDERS' EQUITY
  Common stock, $1 par value, 11,500,000 shares authorized,
    1,225,597, 1,225,597, and 1,009,674 shares issued and
    outstanding at September 30, 1999, and December 31, 1999 and
    1998, respectively..............................................      1,225,597      1,225,597      1,009,674
  Surplus...........................................................      2,960,902      2,960,902      2,736,522
  Undivided profits.................................................        351,425        547,420        462,013
  Accumulated other comprehensive income, net of taxes..............        (29,221)           947          3,312
                                                                      -------------  -------------  -------------
    Total shareholders' equity......................................      4,508,703      4,734,866      4,211,521
                                                                      -------------  -------------  -------------
    Total liabilities and shareholders' equity......................  $  60,986,517  $  61,139,710  $  44,529,922
                                                                      =============  =============  =============
</TABLE>

                            See accompanying notes.

                                      B-29
<PAGE>
                           NORTHERN BANK OF COMMERCE

                 STATEMENTS OF INCOME AND COMPREHENSIVE INCOME

<TABLE>
<CAPTION>
                                                    NINE MONTHS
                                                       ENDED
                                                   SEPTEMBER 30,                 YEARS ENDED DECEMBER 31,
                                             --------------------------  ----------------------------------------
                                                 1999          1998          1998          1997          1996
                                             ------------  ------------  ------------  ------------  ------------
                                                    (UNAUDITED)
<S>                                          <C>           <C>           <C>           <C>           <C>
INTEREST INCOME
  Interest and fees on loans...............  $  4,297,178  $  3,570,148  $  4,852,400  $  3,736,262  $  2,991,060
  Interest on held-to-maturity investment
    securities.............................            --            --        33,612        75,602       140,085
  Interest on available-for-sale investment
    securities.............................        76,196        58,000        42,210        88,349       123,120
  Interest on federal funds sold...........       318,218       134,235       230,151        73,642        73,187
                                             ------------  ------------  ------------  ------------  ------------
    Total interest income..................     4,691,592     3,762,383     5,158,373     3,973,855     3,327,452

INTEREST EXPENSE
  Interest on deposits.....................     1,948,898     1,538,812     2,151,670     1,622,882     1,346,781
                                             ------------  ------------  ------------  ------------  ------------
    Net interest income....................     2,742,694     2,223,571     3,006,703     2,350,973     1,980,671

PROVISION FOR LOAN LOSSES..................       779,186        75,000       683,000       205,500        99,600
                                             ------------  ------------  ------------  ------------  ------------
    Net interest income after provision for
      loan losses..........................     1,963,508     2,148,571     2,323,703     2,145,473     1,881,071

NONINTEREST INCOME
  Gain on sale of loans....................            --            --        80,466       168,626            --
  Service charges and fees.................        48,109        21,628        46,070        28,758        20,052
  Gain (loss) on sale of available-for-
    sale investment securities.............            --            --         1,921         1,529          (130)
  Gain on sale of premises, furniture, and
    equipment..............................            --            --         8,432            --            --
  Other income.............................        52,457        41,427        46,714        29,988        11,674
                                             ------------  ------------  ------------  ------------  ------------
    Total noninterest income...............       100,566        63,055       183,603       228,901        31,596

NONINTEREST EXPENSES
  Salaries and related
    payroll expenses.......................       993,317       731,158     1,004,437       893,964     1,065,769
  Net occupancy............................       186,020       186,602       243,936       334,467       349,471
  Data processing..........................       215,834       160,525       237,364       169,446       150,366
  Advertising and promotional..............       105,312       133,299       190,845       134,316        94,845
  Communications...........................        78,202        51,325        74,704        53,569        46,924
  Professional fees........................            --        35,979        46,391        41,835        40,593
  Supplies.................................        46,325        55,755        76,857        33,014        34,216
  Other expenses...........................       635,059       385,234       534,943       406,152       290,821
                                             ------------  ------------  ------------  ------------  ------------
    Total noninterest expenses.............     2,260,069     1,739,877     2,409,477     2,066,763     2,073,005

INCOME (LOSS) BEFORE INCOME TAXES..........      (195,995)      471,749        97,829       307,611      (160,338)

INCOME TAX BENEFIT.........................            --       138,538        22,240       119,740       195,000
                                             ------------  ------------  ------------  ------------  ------------
NET INCOME.................................      (195,995)      333,211       120,069       427,351        34,662
                                             ------------  ------------  ------------  ------------  ------------
</TABLE>

                                      B-30
<PAGE>

<TABLE>
<CAPTION>
                                                                 NINE MONTHS
                                                                    ENDED
                                                                SEPTEMBER 30,         YEARS ENDED DECEMBER 31,
                                                            ---------------------  -------------------------------
                                                               1999       1998       1998       1997       1996
                                                            ----------  ---------  ---------  ---------  ---------
                                                                 (UNAUDITED)
<S>                                                         <C>         <C>        <C>        <C>        <C>
OTHER COMPREHENSIVE INCOME (LOSS), net of taxes
  Unrealized (losses) gains arising during period, net
    taxes.................................................  $  (30,168) $   7,558  $  (4,286) $  (3,626) $   5,539
  Less: reclassification adjustment for gains (losses)
    included in net income................................          --      1,920      1,921      1,529       (130)
                                                            ----------  ---------  ---------  ---------  ---------
    Other comprehensive income............................     (30,168)     5,638     (2,365)    (2,097)     5,409
                                                            ----------  ---------  ---------  ---------  ---------
COMPREHENSIVE INCOME......................................  $ (226,163) $ 338,849  $ 117,704  $ 425,254  $  40,071
                                                            ==========  =========  =========  =========  =========
BASIC EARNINGS PER COMMON AND COMMON EQUIVALENT SHARE.....  $     0.16  $    0.28  $    0.10  $    0.37  $    0.03
                                                            ==========  =========  =========  =========  =========
DILUTED EARNINGS PER COMMON AND COMMON EQUIVALENT SHARE...  $     0.16  $    0.24  $    0.09  $    0.32  $    0.03
                                                            ==========  =========  =========  =========  =========
</TABLE>

                            See accompanying notes.

                                      B-31
<PAGE>
                           NORTHERN BANK OF COMMERCE
                  STATEMENT OF CHANGES IN SHAREHOLDERS' EQUITY

<TABLE>
<CAPTION>
                                                                                     ACCUMULATED
                                   COMMON STOCK                                         OTHER               TOTAL
                             ------------------------                UNDIVIDED      COMPREHENSIVE       SHAREHOLDERS'
                               SHARES       AMOUNT       SURPLUS      PROFITS           INCOME             EQUITY
                             -----------  -----------  -----------  ------------  ------------------  -----------------
<S>                          <C>          <C>          <C>          <C>           <C>                 <C>
BALANCE, December 31,
  1996.....................    1,000,584  $ 1,000,584  $ 2,685,618   $   34,662       $    5,409         $ 3,726,273
Stock options exercised....        9,090        9,090       50,904           --               --              59,994
Net income and other
  comprehensive income.....           --           --           --      427,351           (2,097)            425,254
                             -----------  -----------  -----------   ----------       ----------         -----------
BALANCE, December 31,
  1997.....................    1,009,674    1,009,674    2,736,522      462,013            3,312           4,211,521
11.5 for 10 stock split....      151,441      151,441     (151,441)          --               --                  --
Stock options exercised....       64,482       64,482      305,652           --               --             370,134
Income tax benefit from
  exercise of stock
  options..................           --           --       35,507           --               --              35,507
Transfer from undivided
  profits to surplus.......           --           --       34,662      (34,662)              --                  --
Net income and other
  comprehensive income.....           --           --           --      120,069           (2,365)            117,704
                             -----------  -----------  -----------   ----------       ----------         -----------
BALANCE, December 31,
  1998.....................    1,225,597    1,225,597    2,960,902      547,420              947           4,734,866
Net income and other
  comprehensive income,
  September 30, 1999,
  (unaudited)..............           --           --           --     (195,995)         (30,168)           (226,163)
                             -----------  -----------  -----------   ----------       ----------         -----------
BALANCE, September 30,
  1999.....................    1,225,597  $ 1,225,597  $ 2,960,902   $  351,425       $  (29,221)        $ 4,508,703
                             ===========  ===========  ===========   ==========       ==========         ===========
</TABLE>

                            See accompanying notes.

                                      B-32
<PAGE>
                           NORTHERN BANK OF COMMERCE

                            STATEMENTS OF CASH FLOWS

<TABLE>
<CAPTION>
                                                           NINE
                                                       MONTHS ENDED
                                                      SEPTEMBER 30,                 YEARS ENDED DECEMBER 31,
                                                 ------------------------  -------------------------------------------
                                                    1998         1997          1998           1997           1996
                                                 -----------  -----------  -------------  -------------  -------------
                                                       (UNAUDITED)
<S>                                              <C>          <C>          <C>            <C>            <C>

CASH FLOWS FROM OPERATING ACTIVITIES
  Net income (loss)............................  $  (195,995) $   333,211  $     120,069  $     427,351  $      34,662
  Adjustments to reconcile net income (loss) to
    net cash from operating activities:
    Depreciation and amortization..............       61,178       54,270         72,269        109,197         71,623
    (Gain) loss on sale of investment
      securities...............................           --       (1,920)        (1,921)        (1,529)           130
    Gain on sale of premises, furniture, and
      equipment................................           --           --         (8,432)            --             --
    Gain on sale of loans......................           --           --        (80,466)      (168,626)            --
    Provision for loan losses..................      779,186       75,000        683,000        205,500         99,600
    Deferred taxes.............................           --      (69,177)       (62,127)      (124,750)      (195,000)
    Proceeds from sales of loans
      held-for-sale............................           --           --      4,205,862      1,433,410             --
    Originations and purchases of loans held-
      for-sale.................................           --           --     (4,125,396)    (1,331,374)            --
    Increase (decrease) in cash due to changes
      in certain assets and liabilities:
      Receivable from loan participation.......           --           --     (1,379,200)            --             --
      Accrued interest receivable and other
        assets.................................    1,270,392       (7,402)       (10,591)        29,541       (136,197)
      Accrued interest payable and other
        liabilities............................      271,990      156,971        104,569         44,435        (10,467)
                                                 -----------  -----------  -------------  -------------  -------------
        Net cash from operating activities.....    2,186,751      540,953       (482,364)       623,155       (135,649)
                                                 -----------  -----------  -------------  -------------  -------------

CASH FLOWS FROM INVESTING ACTIVITIES
  Purchases of held-to-maturity investment
    securities.................................           --           --             --             --       (203,666)
  Purchases of available-for-sale investment
    securities.................................   (3,659,551)  (1,106,934)    (1,111,984)      (505,138)    (4,495,486)
  Proceeds from maturities of held-to-maturity
    investment securities......................           --      600,000        800,000      1,700,000      1,500,000
  Proceeds from the sale of available-for-sale
    investment securities......................           --    1,250,938      1,250,938      2,980,938        770,000
  Net decrease (increase) in loans.............      716,192   (6,254,628)   (10,488,977)   (10,278,884)   (12,692,227)
  Payments made for purchase of premises,
    furniture, and equipment...................      (56,537)     (62,329)       (69,484)       (39,236)       (67,689)
  Proceeds from sale of premises, furniture,
    and equipment..............................           --        8,257         13,756             --             --
                                                 -----------  -----------  -------------  -------------  -------------
    Net cash from investing activities.........   (2,999,896)  (5,564,696)    (9,605,751)    (6,142,320)   (15,189,068)
                                                 -----------  -----------  -------------  -------------  -------------
CASH FLOWS FROM FINANCING ACTIVITIES
  Net (decrease) increase in deposit accounts..     (199,020)  12,506,630     16,017,381      2,253,792     17,867,463
  Cash received from the exercise of stock
    options....................................           --      370,125        370,134         59,994             --
                                                 -----------  -----------  -------------  -------------  -------------
    Net cash from financing activities.........     (199,020)  12,876,755     16,387,515      2,313,786     17,867,463
                                                 -----------  -----------  -------------  -------------  -------------
</TABLE>

                                      B-33
<PAGE>
                           NORTHERN BANK OF COMMERCE
                            STATEMENTS OF CASH FLOWS

<TABLE>
<CAPTION>
                                                            NINE
                                                        MONTHS ENDED
                                                        SEPTEMBER 30,                 YEARS ENDED DECEMBER 31,
                                                 ---------------------------  -----------------------------------------
                                                     1998           1997          1998          1997           1996
                                                 -------------  ------------  ------------  -------------  ------------
                                                         (UNAUDITED)
<S>                                              <C>            <C>           <C>           <C>            <C>
NET INCREASE (DECREASE) IN CASH AND CASH
  EQUIVALENTS..................................  $  (1,012,155) $  7,853,012  $  6,299,400  $  (3,205,379) $  2,542,746

CASH AND CASH EQUIVALENTS, beginning of
  period.......................................      7,216,558       917,158       917,158      4,122,537     1,579,791
                                                 -------------  ------------  ------------  -------------  ------------

CASH AND CASH EQUIVALENTS, end of period.......  $   6,204,403  $  8,770,170  $  7,216,558  $     917,158  $  4,122,537
                                                 =============  ============  ============  =============  ============

SUPPLEMENTAL SCHEDULE OF CASH FLOW INFORMATION
  Cash paid for interest.......................  $   1,920,792  $  1,535,599  $  2,138,123  $   1,612,498  $  1,336,079
                                                 =============  ============  ============  =============  ============

SCHEDULE OF NONCASH ACTIVITIES
  Unrealized (loss) gain on
    available-for-sale investment
    securities, net of taxes...................  $     (30,168) $      5,638  $     (2,365) $      (2,097) $      5,409
                                                 =============  ============  ============  =============  ============
Income tax benefit from exercise of stock
  options......................................  $          --  $     35,507  $     35,507  $          --  $         --
                                                 =============  ============  ============  =============  ============
</TABLE>

                            See accompanying notes.

                                      B-34
<PAGE>
NOTE 1--NATURE OF OPERATIONS

    Northern Bank of Commerce (the Bank) is a state-chartered institution
authorized to provide banking services in the State of Oregon. The Bank, which
operates from its headquarters in Portland, Oregon, provides commercial banking
services to small businesses and individuals located primarily in the Portland
metropolitan area. The Bank also operates seven limited-service branches in
residential retirement communities in Portland and surrounding areas. The Bank
is subject to the regulations of certain federal and state agencies and will
undergo periodic examinations by those regulatory authorities.

NOTE 2--SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

    MANAGEMENT'S ESTIMATES AND ASSUMPTIONS--In preparing the financial
statements, management is required to make estimates and assumptions that affect
the reported amounts of assets, liabilities, and commitments as of the date of
the balance sheet and revenues and expenses for the periods. Actual results
could differ significantly from those estimates.

    INVESTMENT SECURITIES--The Bank identifies its investment securities as
either "held-to-maturity" or "available-for-sale" at the time they are acquired.
Securities classified as "held-to-maturity" or "available-for-sale" conform to
the following accounting policies:

    SECURITIES HELD-TO-MATURITY--Bonds, notes, and debentures for which the Bank
has the intent and ability to hold to maturity are reported at cost, adjusted
for premiums and discounts that are recognized in interest income using the
interest method over the period to maturity.

    SECURITIES AVAILABLE-FOR-SALE--Available-for-sale securities consist of
bonds, notes, debentures, and certain equity securities not classified as
held-to-maturity securities. Securities are generally classified as
available-for-sale if the instrument may be sold in response to such factors as:
(1) changes in market interest rates and related changes in the security's
prepayment risk, (2) needs for liquidity, (3) changes in the availability of and
the yield on alternative instruments, and (4) changes in funding sources and
terms. Unrealized holding gains and losses, net of tax, on available-for-sale
securities are reported as a net amount in a separate component of equity until
realized. Gains and losses on the sale of available-for-sale securities are
determined using the specific-identification method. Premiums and discounts are
recognized in interest income using the interest method over the period to
maturity.

    Declines in the fair value of individual held-to-maturity and
available-for-sale securities below their cost that are other than temporary,
result in write-downs of the individual securities to their fair value. The
related write-downs would be included in earnings as realized losses.

    LOANS, NET OF ALLOWANCE FOR LOAN LOSSES AND UNEARNED INCOME--Loans are
stated at the amount of unpaid principal, reduced by an allowance for loan
losses and unearned income. Interest on loans is calculated by using the
simple-interest method on daily balances of the principal amount outstanding.
The allowance for loan losses is established through a provision for loan losses
charged to expenses. Loans are charged against the allowance for loan losses
when management believes that the collectibility of the principal is unlikely.
The allowance is an amount that management believes will be adequate to absorb
possible losses on existing loans that may become uncollectible, based on
evaluations of the collectibility of loans and prior loan loss experience. The
evaluations take into consideration such factors as changes in the nature and
volume of the loan portfolio, overall portfolio quality, review of specific
problem loans, and current economic conditions that may affect the borrower's
ability to pay. Various regulatory agencies, as an integral part of their
examination process, periodically review the Bank's reserve for loan losses.
Such agencies may require the Bank to recognize additions to the reserve based
on their judgment of information available to them at the time of their
examinations.

                                      B-35
<PAGE>
NOTE 2--SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

    Impaired loans are carried at the present value of expected future cash
flows discounted at the loan's effective interest rate, the loans market price
or the fair value of the collateral if the loan is collateral dependent. Accrual
of interest is discontinued on impaired loans when management believes, after
considering economic and business conditions, collection efforts, and collateral
position, that the borrower's financial condition is such that collection of
interest is doubtful. When interest accrual is discontinued, all unpaid accrued
interest is reversed. Interest income is subsequently recognized only to the
extent cash payments are received.

    Loan origination fees and certain direct origination costs are capitalized
and recognized as an adjustment to the yield of the related loan.

    PREMISES, FURNITURE, AND EQUIPMENT--Premises, furniture, and equipment are
stated at cost, less accumulated depreciation and amortization. Depreciation and
amortization are computed principally by the straight-line method over the
estimated useful lives of the assets, which range from three to five years.

    ORGANIZATIONAL COSTS--Organizational costs are comprised of costs associated
with the establishment of the Bank. These costs are amortized over a 60-month
period.

    INCOME TAXES--Deferred tax assets and liabilities are reflected at currently
enacted income tax rates applicable to the period in which the deferred tax
assets or liabilities are expected to be realized or settled. As changes in tax
laws or rates are enacted, deferred tax assets and liabilities are adjusted
through the provision for income taxes.

    CASH AND CASH EQUIVALENTS--Cash equivalents are generally all short-term
investments with a maturity of three months or less at the time of purchase.
Cash and cash equivalents include cash on hand, amounts due from banks, and
federal funds sold. Generally, federal funds are purchased and sold for one day
periods.

    FACTORED RECEIVABLES--The Bank offers customers an arrangement by which the
Bank purchases customer receivables, on a full recourse basis, through the
Business Manager factoring program. Under the program, the Bank discounts
qualified accounts receivable by 1.50% to 4.55%, submits invoices to customers,
and collects, and retains cash collections on accounts. In addition, the Bank
retains 10%, 25%, or 100% (dependent on the aging of the receivable) of all
outstanding factored receivables in a cash reserve account to provide for
potential charge-offs or other adjustments. As of December 31, 1998 and 1997,
outstanding balances were $7,745,935 and $1,625,375 with cash reserve balances
of $54,960 and $19,868, respectively, and are included in loans (see Note 4).

    PREMIUMS FROM SALE OF SBA GUARANTEED LOANS--From time-to-time the Bank sells
the guaranteed portion of government guaranteed loans to third parties. The Bank
realizes a premium from the sale of such participations, plus a negotiated
annual servicing fee. The Bank recognizes the financial effects of these
transactions according to Statement of Financial Accounting Standards (SFAS)
No. 125, "Accounting for Transfers and Servicing of Financial Assets."

    OFF-BALANCE-SHEET FINANCIAL INSTRUMENTS--The Bank holds no derivative
financial instruments. However, in the ordinary course of business, the Bank
enters into off-balance-sheet financial instruments consisting of commitments to
extend credit as well as commercial letters of credit and standby letters of
credit. Such financial instruments are recorded in the financial statements when
they are funded or related fees are incurred or received.

    GUARANTY FUND--State regulations required the Bank to maintain a guaranty
fund to absorb the Bank's accumulated losses until operations became profitable.
The guaranty fund was established at the

                                      B-36
<PAGE>
NOTE 2--SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

Bank's inception. Losses were charged to the guaranty fund through 1996 until
the balance remaining of $763,308 was transferred to surplus and the guaranty
fund was closed.

    FAIR VALUE OF FINANCIAL INSTRUMENTS--The following methods and assumptions
were used by the Bank in estimating fair values of financial instruments as
disclosed herein:

    CASH AND CASH EQUIVALENTS--The carrying amounts of cash and short-term
instruments approximate their fair value.

    HELD-TO-MATURITY AND AVAILABLE-FOR-SALE SECURITIES--Fair values for
investment securities, excluding restricted equity securities, are based on
quoted market prices. The carrying values of restricted equity securities
approximate fair values.

    LOANS RECEIVABLE--For variable-rate loans that reprice frequently and have
no significant change in credit risk, fair values are based on carrying values.
Fair values for certain mortgage loans (for example, one-to-four family
residential), credit card loans, and other consumer loans are based on quoted
market prices of similar loans sold in conjunction with securitization
transactions, adjusted for differences in loan characteristics. Fair values for
commercial real estate and commercial loans are estimated using discounted cash
flow analyses, using interest rates currently being offered for loans with
similar terms to borrowers of similar credit quality. Fair values for impaired
loans are estimated using discounted cash flow analyses or underlying collateral
values, where applicable.

    DEPOSIT LIABILITIES--The fair values disclosed for demand deposits are, by
definition, equal to the amount payable on demand at the reporting date (that
is, their carrying amounts). The carrying amounts of variable-rate, fixed-term
money market accounts and certificates of deposit (CDs) approximate their fair
values at the reporting date. Fair values for fixed-rate CDs are estimated using
a discounted cash flow calculation that applies interest rates currently being
offered on certificates to a schedule of aggregated expected monthly maturities
on time deposits.

    ACCRUED INTEREST--The carrying amounts of accrued interest approximate their
fair values.

    OFF-BALANCE-SHEET INSTRUMENTS--The Bank's off-balance-sheet instruments
include unfunded commitments to extend credit and standby letters of credit. The
fair value of these instruments is not considered practicable to estimate
because of the lack of quoted market prices and the inability to estimate fair
value without incurring excessive costs.

    ADVERTISING--Advertising costs are charged to expense during the year in
which they are incurred.

    STOCK OPTIONS--Effective December 31, 1995, the Bank adopted the disclosure
requirements of SFAS No. 123, "Accounting for Stock-Based Compensation," but has
determined that it will continue to measure its director and employee
stock-based compensation arrangements under the provisions of Accounting
Principles Board (APB) Opinion No. 25. Accordingly, no compensation cost has
been recognized for its stock option plans.

    UNAUDITED INTERIM FINANCIAL DATA--The interim financial statements have been
prepared in accordance with generally accepted accounting principles for interim
financial information. Accordingly, they do not include all of the information
and footnotes required by generally accepted accounting principles for complete
financial statements. In the opinion of management all adjustments, including
normal recurring accruals necessary for fair presentation of results of
operations for the interim periods included herein, have been made. The results
of operations for the nine months ended September 30, 1999, are not necessarily
indicative of results to be anticipated for the year ending December 31, 1999.

    RECENTLY ISSUED ACCOUNTING STANDARDS--In June 1997, the Financial Accounting
Standards Board (FASB) issued SFAS No. 130 "Reporting Comprehensive Income."
This statement establishes standards

                                      B-37
<PAGE>
NOTE 2--SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

for reporting comprehensive income and its components (revenues, expenses,
gains, and losses) in a full set of financial statements. This Statement, which
requires that the Bank recognize the unrealized gain or loss on
available-for-sale securities as a component of comprehensive income, is
effective for the year ended December 31, 1998.

    Other issued but not yet required FASB statements are not currently
applicable to the Bank's operations. Management believes these pronouncements
will have no material effect upon its financial position or results of
operations.

    RECLASSIFICATIONS--Certain reclassifications have been made to the 1997 and
1996 financial statements to conform with current year presentations.

NOTE 3--INVESTMENT SECURITIES

    The amortized cost and estimated market values of investments in debt
securities at December 31, 1998 and 1997, are as follows:

<TABLE>
<CAPTION>
                                                            GROSS        GROSS      ESTIMATED
                                            AMORTIZED    UNREALIZED   UNREALIZED      MARKET
                                               COST         GAINS       LOSSES        VALUE
                                           ------------  -----------  -----------  ------------
<S>                                        <C>           <C>          <C>          <C>
DECEMBER 31, 1998
Available-for-sale investment securities:
  U.S. Treasuries and agencies...........  $  1,106,838   $   2,941    $  (1,403)  $  1,108,376
                                           ============   =========    =========   ============
DECEMBER 31, 1997
Held-to-maturity investment securities:
  U.S. agencies..........................  $    795,619   $   2,221    $  (3,000)  $    794,840
                                           ============   =========    =========   ============
Available-for-sale investment securities:
  U.S. Treasuries and agencies...........  $  1,248,833   $   3,329    $     (17)  $  1,252,145
                                           ============   =========    =========   ============
</TABLE>

    The amortized cost and estimated market value of available-for-sale debt
securities at December 31, 1998, by contractual maturity, are shown below.
Expected maturities may differ from contractual maturities because borrowers
could have the right to call or prepay obligations with or without call or
prepayment penalties.

<TABLE>
<CAPTION>
                                                                                   ESTIMATED
                                                                     AMORTIZED       MARKET
                                                                        COST         VALUE
                                                                    ------------  ------------
<S>                                                                 <C>           <C>
Due from one year to five years...................................  $    505,998  $    508,940
Due after five years through ten years............................       600,840       599,436
                                                                    ------------  ------------
                                                                    $  1,106,838  $  1,108,376
                                                                    ============  ============
</TABLE>

    At December 31, 1998 and 1997, investment securities with an amortized cost
of $1,106,838 and $690,832, respectively, were pledged to secure deposits of
public funds.

                                      B-38
<PAGE>
NOTE 4--LOANS, NET OF UNEARNED INCOME AND ALLOWANCE FOR LOAN LOSSES

    The composition of loan balances is summarized as follows:

<TABLE>
<CAPTION>
                                                                     1998           1997
                                                                 -------------  -------------
<S>                                                              <C>            <C>
Real estate....................................................  $  17,327,927  $  16,331,315
Commercial.....................................................     25,224,964     21,286,535
Business manager...............................................      7,745,935      1,625,375
Consumer.......................................................      1,480,018      1,979,174
                                                                 -------------  -------------
                                                                    51,778,844     41,222,399
Unearned loan fee income.......................................       (168,676)      (113,208)
Allowance for loan losses......................................     (1,102,395)      (407,395)
                                                                 -------------  -------------
                                                                 $  50,507,773  $  40,701,796
                                                                 =============  =============
</TABLE>

    The following is an analysis of the changes in the reserve for possible loan
losses:

<TABLE>
<CAPTION>
                                                             1998         1997        1996
                                                         ------------  ----------  ----------
<S>                                                      <C>           <C>         <C>
Beginning balance......................................  $    407,395  $  230,515  $  146,700
Provision for possible loan losses.....................       683,000     205,500      99,600
Recoveries.............................................        12,000          --          --
Losses.................................................            --     (28,620)    (15,785)
                                                         ------------  ----------  ----------
Ending balance.........................................  $  1,102,395  $  407,395  $  230,515
                                                         ============  ==========  ==========
</TABLE>

    Impaired loans having recorded balances of $455,552 on December 31, 1998,
have been recognized in conformity with SFAS No. 114, as amended by SFAS
No. 118. The total allowance for loan losses related to these loans was $198,285
on December 31, 1998. No interest income was recognized for cash payments
received in 1998. Had the impaired loans performed according to their original
terms, additional interest income of $28,772 would have been recognized during
1998.

    There were no material impaired loans or loans on nonaccrual status at
December 31, 1997.

NOTE 5--PREMISES, FURNITURE, AND EQUIPMENT

    The composition of premises, furniture, and equipment is as follows:

<TABLE>
<CAPTION>
                                                                         1998         1997
                                                                      -----------  -----------
<S>                                                                   <C>          <C>
Leasehold improvements..............................................  $    45,477  $    33,039
Furniture and fixtures..............................................      129,228      114,428
Vehicles............................................................       56,676       53,114
Software............................................................           --       14,723
                                                                      -----------  -----------
                                                                          231,381      215,304
Accumulated depreciation and amortization...........................     (140,149)    (147,009)
                                                                      -----------  -----------
                                                                      $    91,232  $    68,295
                                                                      ===========  ===========
</TABLE>

                                      B-39
<PAGE>
NOTE 6--ACCRUED INTEREST RECEIVABLE AND OTHER ASSETS

    Accrued interest and other assets consisted of the following:

<TABLE>
<CAPTION>
                                                                           1998        1997
                                                                        ----------  ----------
<S>                                                                     <C>         <C>
Accrued interest receivable...........................................  $  330,906  $  372,254
Prepaid expenses and deposits.........................................      66,256      50,919
Net deferred tax asset................................................     381,877     319,750
Other.................................................................      36,827         225
                                                                        ----------  ----------
                                                                        $  815,866  $  743,148
                                                                        ==========  ==========
</TABLE>

NOTE 7--TIME DEPOSITS

    Time certificates of deposit of $100,000 and over were $5,582,803 and
$5,351,949 at December 31, 1998 and 1997, respectively.

    At December 31, 1998, the scheduled maturities for all time deposits is as
follows:

<TABLE>
<S>                                                              <C>
1999...........................................................  $17,072,425
2000...........................................................   6,784,148
2001...........................................................   1,015,513
2002...........................................................     492,745
                                                                 ----------
                                                                 $25,364,831
                                                                 ==========
</TABLE>

NOTE 8--INCOME TAXES

    As of December 31, 1998, the Bank had a net operating loss available to
offset future taxable income of approximately $179,000. This carryforward will
expire in various years beginning in 2010 unless utilized in earlier tax years.

    Deferred income taxes represent the tax effect of differences in timing
between financial income and taxable income. The net deferred tax assets,
included in other assets in the accompanying balance sheets, includes the
following components:

<TABLE>
<CAPTION>
                                                                         1998         1997
                                                                      -----------  -----------
<S>                                                                   <C>          <C>
Deferred tax assets:
  Loan loss reserve.................................................  $   419,540  $   145,749
  Net operating loss carryforward...................................       68,800      339,252
  Accumulated depreciation..........................................       17,637       19,951
  Other.............................................................        4,243        3,257
                                                                      -----------  -----------
                                                                          510,220      508,209
  Valuation allowance...............................................           --      (69,177)
                                                                      -----------  -----------
                                                                          510,220      439,032
Deferred tax liabilities:
  Accrual to cash adjustment........................................     (128,343)    (119,282)
                                                                      -----------  -----------
    Net deferred tax assets.........................................  $   381,877  $   319,750
                                                                      ===========  ===========
</TABLE>

    The valuation allowance was provided in 1997 since it was uncertain in prior
years if the Bank would be able to utilize all existing net operating loss
carryforwards in future periods. However,

                                      B-40
<PAGE>
NOTE 8--INCOME TAXES (CONTINUED)

management believes, based upon the Bank's current performance, that net
deferred tax assets will be realized in the normal course of operations and,
accordingly, management has not reduced net deferred tax assets by a valuation
allowance.

    The income tax benefit is as follows:

<TABLE>
<CAPTION>
                                                             1998        1997         1996
                                                          ----------  -----------  -----------
<S>                                                       <C>         <C>          <C>
Current.................................................  $   39,887  $     5,010  $        --
Deferred................................................     (62,127)    (124,750)    (195,000)
                                                          ----------  -----------  -----------
Income tax benefit......................................  $  (22,240) $  (119,740) $  (195,000)
                                                          ==========  ===========  ===========
</TABLE>

    Deferred income taxes represent the tax effect of differences in timing
between financial income and taxable income. Deferred income taxes, according to
the timing differences which caused, them, were as follows:

<TABLE>
<CAPTION>
                                                            1998         1997         1996
                                                         -----------  -----------  -----------
<S>                                                      <C>          <C>          <C>
Accounting loan loss provision in excess of tax
  provision............................................  $  (273,792) $   (77,671) $   (29,701)
Accounting depreciation in excess of (less than) tax
  depreciation.........................................        2,313      (10,592)      (2,033)
Net operating loss carryforward........................      201,719      (36,014)    (230,285)
Cash to accrual adjustment.............................        9,063         (473)      67,019
Other differences......................................       (1,430)          --           --
                                                         -----------  -----------  -----------
                                                         $   (62,127) $  (124,750) $  (195,000)
                                                         ===========  ===========  ===========
</TABLE>

A reconciliation between the statutory federal income tax rate and the effective
tax rate is as follows:

<TABLE>
<CAPTION>
                                                             1998        1997         1996
                                                          ----------  -----------  -----------
<S>                                                       <C>         <C>          <C>
Federal income taxes at statutory rate..................  $   21,512  $   104,588  $        --
State income taxes, net of federal income tax benefit...       4,261        7,735           --
Change in deferred tax valuation allowance..............     (69,177)    (225,010)    (195,000)
Other...................................................      21,164       (7,053)          --
                                                          ----------  -----------  -----------
Income tax benefit......................................  $  (22,240) $  (119,740) $  (195,000)
                                                          ==========  ===========  ===========
</TABLE>

NOTE 9--FINANCIAL INSTRUMENTS WITH OFF-BALANCE-SHEET RISK

    The Bank is a party to financial instruments with off-balance-sheet risk in
the normal course of business to meet the financing needs of its customers.
These financial instruments include commitments to extend credit and standby
letters of credit and financial guarantees. Those instruments involve elements
of credit and interest-rate risk similar to the amounts recognized in the
balance sheets. The contract or notional amounts of those instruments reflect
the extent of the Bank's involvement in particular classes of financial
instruments.

    The Bank's exposure to credit loss in the event of nonperformance by the
other party to the financial instrument for commitments to extend credit and
standby letters of credit, and financial guarantees written is represented by
the contractual notional amount of those instruments. The Bank

                                      B-41
<PAGE>
NOTE 9--FINANCIAL INSTRUMENTS WITH OFF-BALANCE-SHEET RISK (CONTINUED)

uses the same credit policies in making commitments and conditional obligations
as it does for on-balance-sheet instruments.

    Commitments to extend credit are agreements to lend to a customer as long as
there is no violation of any condition established in the contract. Commitments
generally have fixed expiration dates or other termination clauses and may
require payment of a fee. Since many of the commitments are expected to expire
without being drawn upon, the total commitment amounts do not necessarily
represent future cash requirements. The Bank's experience has been that a
significant amount of loan commitments are drawn upon by customers. The Bank
evaluates each customer's creditworthiness on a case-by-case basis. The amount
of collateral obtained, if it is deemed necessary by the Bank upon extension of
credit, is based on management's credit evaluation of the counterparty.
Collateral held varies but may include cash, accounts receivable, inventory,
property, equipment, and income-producing commercial properties.

    Standby letters of credit and financial guarantees written are conditional
commitments issued by the Bank to guarantee the performance of a customer to a
third-party. These guarantees are primarily issued to support public and private
borrowing arrangements, including commercial paper, bond financing, and similar
transactions. The credit risk involved in issuing letters of credit is
essentially the same as that involved in extending loan facilities to customers.
The Bank holds cash, marketable securities, or real estate as collateral
supporting those commitments for which collateral is deemed necessary.

    The Bank has not been required to perform on any financial guarantees during
1998, 1997, or 1996 nor has it incurred any losses on its commitments during
these periods. A summary of the notional amounts of the Bank's financial
instruments with off-balance-sheet risk at December 31, 1998 and 1997, follows:

<TABLE>
<CAPTION>
                                                                     1998           1997
                                                                 -------------  -------------
<S>                                                              <C>            <C>
Commitments to extend credit...................................  $  15,979,360  $  10,060,090
Commercial and standby letters of credit.......................  $     538,272  $     129,030
</TABLE>

                                      B-42
<PAGE>
NOTE 10--FAIR VALUES OF FINANCIAL INSTRUMENTS

    The following table estimates fair value and the related carrying values of
the Bank's financial instruments at December 31, 1998 and 1997:

<TABLE>
<CAPTION>
                                                                  1998                          1997
                                                      ----------------------------  ----------------------------
                                                                       ESTIMATED                     ESTIMATED
                                                        CARRYING         FAIR         CARRYING         FAIR
                                                         AMOUNT          VALUE         AMOUNT          VALUE
                                                      -------------  -------------  -------------  -------------
<S>                                                   <C>            <C>            <C>            <C>
Financial assets:
  Cash and due from banks...........................  $   3,541,558  $   3,541,558  $     717,158  $     717,158
  Federal funds sold................................  $   3,675,000  $   3,675,000  $     200,000  $     200,000
  Investment securities held-to-maturity............  $          --  $          --  $     795,619  $     794,840
  Investment securities available-for-sale..........  $   1,108,376  $   1,108,376  $   1,252,145  $   1,252,145
  Loans, net of unearned income and allowance for
    loan losses.....................................  $  50,507,773  $  50,102,128  $  40,701,796  $  40,557,926
  Accrued interest receivable and other assets......  $     815,866  $     815,866  $     743,148  $     743,148

Financial liabilities:
  Demand deposits...................................  $   8,918,052  $   8,918,052  $   7,697,695  $   7,697,695
  Money market and other interest-bearing
    accounts........................................  $  21,940,355  $  21,940,355  $  18,427,395  $  18,427,395
  Time deposits.....................................  $  25,364,831  $  25,532,241  $  14,080,767  $  14,147,310
  Accrued interest payable and other liabilities....  $     181,606  $     181,606  $     112,544  $     112,544
</TABLE>

    While estimates of fair value are based on management's judgment of the most
appropriate factors, there is no assurance that were the Bank to have disposed
of such items at December 31, 1998, the estimated fair values would necessarily
have been achieved at that date, since market values may differ depending on
various circumstances. The estimated fair values at December 31, 1998, should
not necessarily be considered to apply at subsequent dates.

    In addition, other assets and liabilities of the Bank that are not defined
as financial instruments are not included in the above disclosures, such as
property and equipment. Also, nonfinancial instruments typically not recognized
in the financial statements nevertheless may have value but are not included in
the above disclosures. These include, among other items, the estimated earnings
power of core deposit accounts, the trained work force, customer goodwill, and
similar items.

NOTE 11--CONCENTRATIONS OF CREDIT

    The Bank has made loans and commitments totaling $5,750,836 to customers
located outside the Bank's market area. The concentrations of credit by type of
loan are set forth in Note 4. The distribution of commitments to extend credit
approximates the distribution of loans outstanding. The Bank's loan policy does
not allow the extension of credit to any single borrower or group of related
borrowers without approval from the Loan Committee.

                                      B-43
<PAGE>
NOTE 12--COMMITMENTS AND CONTINGENCIES

    COMMITMENTS--As of December 31, 1998, the Bank leased office equipment under
noncancellable operating leases. The Bank also leases office space in Portland.
Future minimum lease payments for all noncancellable operating leases are as
follows:

<TABLE>
<S>                                                                 <C>
Years Ending December 31,
1999..............................................................  $ 154,862
2000..............................................................     71,844
2001..............................................................     12,204
                                                                    ---------
                                                                    $ 238,910
                                                                    =========
</TABLE>

    For the years ending December 31, 1998, 1997, and 1996, rent expense was
$164,804, $239,446, and $302,488, respectively.

    LAWSUIT CONTINGENCIES--In the ordinary course of business, the Bank becomes
involved in various litigation arising from normal banking activities. In the
opinion of management, the ultimate disposition of these actions will not have a
material adverse effect on the financial position or results of operations.

    YEAR 2000 CONTINGENCY--The Year 2000 issue is the result of computer
programs being written using two digits rather than four to define the
applicable year. Any of the Bank's computer programs that have date-sensitive
software may recognize a date using "00" as the year 1900 rather than the Year
2000. In addition, certain hardware components may not function properly as the
Year 2000 approaches. This could result in a system failure or miscalculations
causing disruptions of operations, including, among other things, a temporary
inability to process transactions, send invoices, or engage in similar normal
business activities. Management has completed a review of the Bank's computer
software programs, hardware components, and other systems, and estimates that
approximately $250,000 will be incurred to ensure its systems are Year 2000
compliant. These costs will be expensed as incurred.

NOTE 13--EMPLOYMENT AGREEMENTS

    The Bank has entered into employment agreements with its president and
former executive vice president. These agreements, which expire on December 31,
2000, but may be terminated earlier for cause, provide for aggregate base
monthly salaries of $17,360, as well as other customary benefits.

    Included in the employment agreements are provisions for payments to the
executives under certain circumstances in which they become terminated or there
is a change in shareholder control of the Bank. Under these provisions, the
executives will each receive additional payments equal to three years'
compensation if termination or change in shareholders control occurs in the
first year of the agreements, two years' compensation in the second year, and
one year's compensation in the final year.

NOTE 14--EMPLOYEE BENEFIT PLAN

    The Bank has established a 401(k) profit sharing plan for the benefit of all
full-time employees over the age of 18 that have provided six months of service.
The plan allows employees to make voluntary salary deferral contributions up to
15% of compensation subject to Internal Revenue Code Sec. 415 limitations. The
Bank makes discretionary matching contributions of $.50 for each $1 of deferred
salary contributed by the employee up to 6% of base compensation or commissions.
All

                                      B-44
<PAGE>
NOTE 14--EMPLOYEE BENEFIT PLAN (CONTINUED)

employees are vested immediately as to their own contributions and vested as
follows as to the Bank's matching contribution:

<TABLE>
<CAPTION>
YEARS OF SERVICE                                                                   PERCENTAGE
------------------------------------------------------------------------------  -----------------
<S>                                                                             <C>
Less than 2 years.............................................................              0%
2 but less than 3.............................................................             20%
3 but less than 4.............................................................             40%
4 but less than 5.............................................................             60%
5 but less than 6.............................................................             80%
More than 6 years.............................................................            100%
</TABLE>

    This vesting schedule applies only to those employees hired after March 1,
1996. Employees hired on or before March 1, 1996, are 100% vested in the regular
matching contribution account. The Bank contributed $17,903, $16,597, and
$18,004 to the plan during the years ended December 31, 1998, 1997, and 1996,
respectively.

NOTE 15--SHAREHOLDER'S EQUITY AND STOCK OPTION PLANS

    STOCK SPLIT--During March 1998, the Bank effected an 11.5 for 10 stock
split. Share and per share data for all periods presented herein have been
adjusted to give effect to the split.

    STOCK OPTION PLANS--On August 22, 1994, the Bank granted nonqualified stock
options to various investment bankers associated with the Bank's retail stock
offering. These stock options vested one year from the date of grant and expire
August 22, 1999.

    The Bank has also granted stock options to officers and directors of the
Bank. These stock options expire ten years from the date of grant. Incentive
stock options (ISO's) to officers and directors under the plan vest over a
three-year period. Non-qualified Stock Options (NQSO's) granted to officers and
directors under the plan vest when (i) certain performance criteria have been
met, (ii) immediately at the date of grant, or (iii) after three years from the
date of grant.

    During the year ended December 31, 1997, the Bank amended the stock option
plan to include an additional 345,000 options. Stock options granted in 1997
were granted at an exercise price equal to 120% of the closing price of the
Bank's common stock at September 26, 1997, or $8.35 per share. Therefore,
consistent with the provision of SFAS No. 123, no compensation expense was
recorded.

    Subsequent to December 31, 1998, the Bank granted an additional 79,270 stock
options to employees at an exercise price of $5.875 per share.

                                      B-45
<PAGE>
NOTE 15--SHAREHOLDER'S EQUITY AND STOCK OPTION PLANS (CONTINUED)

    The following summarizes the options outstanding as of December 31, 1998,
after the effect of the current year's stock split:

<TABLE>
<CAPTION>
                                                                                            OFFICERS AND
                                                              INVESTMENT BANKERS             DIRECTORS
                                                           -------------------------  ------------------------
                                                                         WEIGHTED                  WEIGHTED
                                                                          AVERAGE                   AVERAGE
                                                                         EXERCISE                  EXERCISE       COMBINED
                                                             SHARES        PRICE       SHARES        PRICE         PLANS
                                                           ----------  -------------  ---------  -------------  ------------
<S>                                                        <C>         <C>            <C>        <C>            <C>
Options under grant,
  December 31, 1995 and 1996.............................     105,317    $    5.74      523,033    $    5.74        628,350
                                                           ==========                 =========                  ==========
Options exercisable, December 31, 1996...................     105,317    $    5.74       92,536    $    5.74        197,853
                                                           ==========                 =========                  ==========
Options granted in 1997..................................          --    $      --      115,000    $    8.35        115,000
Options exercised in 1997................................     (10,453)   $    5.74           --    $      --        (10,453)
                                                           ==========                 =========                  ==========
Options under grant, December 31, 1997...................      94,864    $    5.74      638,033    $    6.21        732,897
                                                           ==========                 =========                  ==========
Options exercisable, December 31, 1997...................      94,864    $    5.74      314,181    $    6.70        409,045
                                                           ==========                 =========                  ==========
Options exercised in 1998................................     (22,300)   $    5.74      (42,182)   $    5.74        (64,482)
                                                           ==========                 =========                  ==========
Options under grant, December 31, 1998...................      72,564    $    5.74      595,851    $    6.24        668,415
                                                           ==========                 =========                  ==========
Options exercisable, December 31, 1998...................      72,564    $    5.74      350,199    $    6.60        422,763
                                                           ==========                 =========                  ==========
</TABLE>

    At December 31, 1998, the range of exercise prices and weighted-average
remaining contractual life of outstanding options was $5.74-$8.35 and
7.20 years, respectively.

                                      B-46
<PAGE>
NOTE 16--EARNINGS PER COMMON AND COMMON EQUIVALENT SHARES

In 1997, the FASB issued SFAS No. 128, "Earnings Per Share" which is effective
for financial statements issued for periods ending after December 15, 1997. SFAS
No. 128 replaced standards for computing and presenting earnings per share and
requires a dual presentation of basic and diluted earnings per share. Basic
earnings per share excludes dilution and is computed by dividing income
available to common stockholders by the weighted average number of common shares
outstanding for the year. Diluted earnings per share reflect the potential
dilution that could occur if common shares were issued pursuant to the exercise
of options under the Bank's stock option plans. Comparative earnings per share
data for the years ended December 31, 1998, 1997, and 1996, have been restated
to conform with the current year presentation. The following table illustrates
the computations of basic and diluted earnings per share for the years ended
December 31, 1998, 1997, and 1996:

<TABLE>
<CAPTION>
                                                                              INCOME        SHARES       PER SHARE
                                  1998                                     (NUMERATOR)   (DENOMINATOR)    AMOUNT
-------------------------------------------------------------------------  ------------  -------------  -----------
<S>                                                                        <C>           <C>            <C>
Basic earnings per share
  Income available to common shareholders................................   $  120,069      1,194,517    $    0.10
                                                                                                         =========
Effect of dilutive securities
  Outstanding common stock options.......................................           --        131,000
                                                                            ----------    -----------
Diluted earnings per share
  Income available to common shareholders plus assumed conversions.......   $  120,069      1,325,517    $    0.09
                                                                            ==========    ===========    =========
                                  1997
-------------------------------------------------------------------------
Basic earnings per share
  Income available to common shareholders................................   $  427,351      1,152,820    $    0.37
                                                                                                         =========
Effect of dilutive securities
  Outstanding common stock options.......................................           --        200,593
                                                                            ----------    -----------
Diluted earnings per share
  Income available to common shareholders plus assumed conversions.......   $  427,351      1,353,413    $    0.32
                                                                            ==========    ===========    =========
</TABLE>

<TABLE>
<CAPTION>
                                 1996
-----------------------------------------------------------------------
<S>                                                                      <C>           <C>            <C>
Basic earnings per share
  Income available to common shareholders..............................   $   34,662      1,150,672     $    0.03
                                                                                                        =========
Effect of dilutive securities
  Outstanding common stock options.....................................           --             --
                                                                          ----------    -----------
Diluted earnings per share
  Income available to common shareholders plus assumed conversions.....   $   34,662      1,150,672     $    0.03
                                                                          ==========    ===========     =========
</TABLE>

    Options to purchase 628,350 shares of common stock at $5.74 per share were
outstanding during 1997 and 1996 but were not included in the computation of
diluted earnings per share because the option's exercise price was greater than
the average market price of the common shares.

NOTE 17--REGULATORY MATTERS

    The Bank is subject to various regulatory capital requirements administered
by the federal banking agencies. Failure to meet minimum capital requirements
can initiate certain mandatory--and possibly

                                      B-47
<PAGE>
NOTE 17--REGULATORY MATTERS (CONTINUED)

additional discretionary--actions by regulators that, if undertaken, could have
a direct material effect on the Bank's financial statements. Under capital
adequacy guidelines and the regulatory framework for prompt corrective action,
the Bank must meet specific capital guidelines that involve quantitative
measures of the Bank's assets, liabilities, and certain off-balance-sheet items
as calculated under regulatory accounting practices. The Bank's capital amounts
and classification are also subject to qualitative judgments by the regulators
about components, risk weightings, and other factors.

    Quantitative measures established by regulation to ensure capital adequacy
require the Bank to maintain minimum amounts and ratios (set forth in the table
below) of total and Tier 1 capital (as defined in the regulations) to
risk-weighted assets (as defined), and of Tier 1 capital to average assets (as
defined). Management believes, as of December 31, 1998, that the Bank meets all
capital adequacy requirements to which it is subject.

    As of December 31, 1998 and 1997, the most recent notification from the
State of Oregon and the Federal Deposit Insurance Corporation categorized the
Bank as adequately capitalized under the regulatory framework for prompt
corrective action. To be categorized as adequately capitalized the Bank must
maintain minimum total risk-based, Tier 1 risk-based, Tier 1 leverage ratios as
set forth in the table below. There are no conditions or events since that
notification that management believes have changed the institution's category.

<TABLE>
<CAPTION>
                                                                                                    TO BE WELL
                                                                                                CAPITALIZED UNDER
                                                                          FOR CAPITAL           PROMPT CORRECTIVE
                                                    ACTUAL             ADEQUACY PURPOSES        ACTION PROVISIONS
                                            ----------------------  ------------------------  ----------------------
                                              AMOUNT       RATIO      AMOUNT        RATIO       AMOUNT       RATIO
                                            -----------  ---------  -----------  -----------  -----------  ---------
<S>                                         <C>          <C>        <C>          <C>          <C>          <C>
AS OF DECEMBER 31, 1998:
Total capital to risk-weighted assets.....  $ 5,367,000        9.6% $ 4,472,500        >8.0%  $ 5,590,600      >10.0%
Tier 1 capital to risk-weighted assets....  $ 4,663,000       8.34% $ 2,236,400        >4.0%  $ 3,354,600       >6.0%
Tier 1 capital to average assets..........  $ 4,663,000       7.57% $ 2,464,000        >4.0%  $ 3,080,000       >5.0%
AS OF DECEMBER 31, 1997:
Total capital to risk-weighted assets.....  $ 4,483,000      11.26% $ 3,185,000        >8.0%  $ 3,981,300      >10.0%
Tier 1 capital to risk-weighted assets....  $ 4,076,000      10.23% $ 1,594,000        >4.0%  $ 2,390,600       >6.0%
Tier 1 capital to average assets..........  $ 4,076,000       8.95% $ 1,821,000        >4.0%  $ 2,277,000       >5.0%
</TABLE>

                                      B-48
<PAGE>
                                   APPENDIX C

                          AGREEMENT AND PLAN OF MERGER

                                  BY AND AMONG
                            COWLITZ BANCORPORATION,
                                  COWLITZ BANK
                                      AND
                           NORTHERN BANK OF COMMERCE

                         DATED AS OF SEPTEMBER 14, 1999
<PAGE>

<TABLE>
<S>                                                           <C>
1. DEFINITIONS..............................................     C-1
      1.1 Defined Terms.....................................     C-1
      1.2 Other Definitional Provisions.....................     C-3

2. THE MERGER...............................................     C-3
      2.1 The Merger........................................     C-3
      2.2 Effective Time....................................     C-3
      2.3 Effects of the Merger.............................     C-3
      2.4 Closing of the Merger.............................     C-3
      2.5 Conversion of Northern Common Stock...............     C-4
      2.6 Merger Consideration..............................     C-5
      2.7 Cowlitz Stock; Cowlitz Bank Stock.................     C-7
      2.8 Options...........................................     C-7
      2.9 Charter...........................................     C-7
      2.10 Bylaws...........................................     C-7
      2.11 Board of Directors...............................     C-7
      2.12 Officers.........................................     C-7
      2.13 Offices..........................................     C-7
      2.14 Stock Option Agreement...........................     C-7
      2.15 Tax Consequences.................................     C-8

3. EXCHANGE OF SHARES.......................................     C-8
      3.1 Cowlitz to Make Shares Available..................     C-8
      3.2 Exchange of Certificates..........................     C-8

4. REPRESENTATIONS AND WARRANTIES OF NORTHERN...............    C-12
      4.1 Corporate Organization............................    C-12
      4.2 Capitalization....................................    C-12
      4.3 Authority; No Violation...........................    C-13
      4.4 Consents and Approvals............................    C-13
      4.5 Reports...........................................    C-14
      4.6 Financial Statements..............................    C-14
      4.7 Broker's Fees.....................................    C-15
      4.8 Absence of Certain Changes or Events..............    C-15
      4.9 Legal Proceedings.................................    C-15
      4.10 Taxes............................................    C-15
      4.11 Employees; Employee Benefit Plans................    C-16
      4.12 FDIC Reports.....................................    C-18
      4.13 Compliance with Applicable Law...................    C-18
      4.14 Certain Contracts................................    C-18
      4.15 Agreements with Regulatory Agencies..............    C-19
      4.16 Undisclosed Liabilities..........................    C-19
      4.17 Anti-takeover Provisions.........................    C-19
      4.18 Northern Information.............................    C-19
      4.19 Title to Property................................    C-19
      4.20 Insurance........................................    C-20
      4.21 Environmental Liability..........................    C-20
      4.22 Opinion of Financial Advisor.....................    C-21
      4.23 Patents, Trademarks, Etc.........................    C-21
      4.24 Loan Matters.....................................    C-21
      4.25 Powers of Attorney...............................    C-22
      4.26 Benefit Plans Invested in Common Stock...........    C-22
      4.27 Community Reinvestment Act Compliance............    C-22
</TABLE>

                                      C-i
<PAGE>
<TABLE>
<S>                                                           <C>
      4.28 Year 2000 Compliance.............................    C-22
      4.29 Labor Matters....................................    C-22

5. REPRESENTATIONS AND WARRANTIES OF COWLITZ................    C-23
      5.1 Corporate Organization............................    C-23
      5.2 Capitalization....................................    C-23
      5.3 Authority; No Violation...........................    C-24
      5.4 Consents and Approvals............................    C-25
      5.5 Reports...........................................    C-25
      5.6 Financial Statements..............................    C-25
      5.7 Broker's Fees.....................................    C-26
      5.8 Absence of Certain Changes or Events..............    C-26
      5.9 Legal Proceedings.................................    C-26
      5.10 SEC Reports......................................    C-26
      5.11 Compliance with Applicable Law...................    C-26
      5.12 Agreements with Regulatory Agencies..............    C-27
      5.13 Cowlitz Information..............................    C-27
      5.14 Year 2000 Compliance.............................    C-27
      5.15 Opinion of Financial Advisor.....................    C-27

6. COVENANTS RELATING TO CONDUCT OF BUSINESS................    C-27
      6.1 Conduct of Businesses Prior to the Effective
       Time.................................................    C-27
      6.2 Northern Forbearances.............................    C-28
      6.3 No Fundamental Cowlitz Changes....................    C-30

7. ADDITIONAL AGREEMENTS....................................    C-31
      7.1 Regulatory Matters................................    C-31
      7.2 Access to Information.............................    C-31
      7.3 Stockholder Approval..............................    C-32
      7.4 Legal Conditions to Merger........................    C-32
      7.5 Affiliates........................................    C-32
      7.6 Stock Listing.....................................    C-33
      7.7 Employees; Employee Benefit Plans.................    C-33
      7.8 Indemnification; Directors' and Officers'
       Insurance............................................    C-33
      7.9 Additional Agreements.............................    C-33
      7.10 Advice of Changes................................    C-34
      7.11 Subsequent Interim and Annual Financial
       Statements...........................................    C-34
      7.12 Disclosure Supplements...........................    C-34

8. CONDITIONS PRECEDENT.....................................    C-35
      8.1 Conditions to Each Party's Obligation to Effect
       the Merger...........................................    C-35
      8.2 Conditions to Obligations of Cowlitz..............    C-35
      8.3 Conditions to Obligations of Northern.............    C-37

9. TERMINATION AND AMENDMENT................................    C-37
      9.1 Termination.......................................    C-37
      9.2 Effect of Termination.............................    C-39
      9.3 Amendment.........................................    C-40
      9.4 Extension; Waiver.................................    C-40
</TABLE>

                                      C-ii
<PAGE>
<TABLE>
<S>                                                           <C>
10. GENERAL PROVISIONS......................................    C-40
      10.1 Nonsurvival of Representations, Warranties and
       Agreements...........................................    C-40
      10.2 Expenses.........................................    C-40
      10.3 Notices..........................................    C-40
      10.4 Interpretation...................................    C-41
      10.5 Counterparts.....................................    C-42
      10.6 Entire Agreement.................................    C-42
      10.7 Governing Law....................................    C-42
      10.8 Severability.....................................    C-42
      10.9 Publicity........................................    C-42
      10.10 Assignment; Third Party Beneficiaries...........    C-42

EXHIBITS
      Exhibit 2.14--Stock Option Agreement
      Exhibit 3.2--Escrow Agreement

ANNEXES
      Annex 2.6(d)--Loan Classifications
      Annex 2.7--Surviving Bank's Capital
      Annex 2.11--Surviving Bank's Directors
      Annex 2.12--Surviving Bank's Officers
      Annex 2.13--Surviving Bank's Offices
      Annex 8.2(e)--Employment Agreement under
       Section 8.2(e)
      Annex 8.2(f)--Noncompetition and Option Agreements
       under Section 8.2(f)
</TABLE>

                                     C-iii
<PAGE>
                          AGREEMENT AND PLAN OF MERGER

    This AGREEMENT AND PLAN OF MERGER, dated as of September 14, 1999 (as
amended, supplemented or otherwise modified from time to time, this
"Agreement"), is entered into by and among COWLITZ BANCORPORATION, a Washington
corporation ("Cowlitz"), COWLITZ BANK, a corporation chartered under the banking
laws of the State of Washington ("Cowlitz Bank"), and NORTHERN BANK OF COMMERCE,
a corporation chartered under the banking laws of the State of Oregon
("Northern").

    The respective Boards of Directors of each of Cowlitz, Cowlitz Bank and
Northern have determined that it is in the best interests of their respective
companies and the stockholders to consummate the business combination
transaction provided for herein and have approved and adopted this Agreement. It
is the intention of the parties to this Agreement that the business combination
contemplated hereby be treated, if it so qualifies, as a "reorganization" and
that this Agreement be treated as a "plan of reorganization" within the meaning
of Section 368 of the Internal Revenue Code of 1986, as amended (the "Code").

    Therefore, in consideration of the mutual covenants, representations,
warranties and agreements contained herein, and intending to be legally bound
hereby, the parties agree as follows:

1.  DEFINITIONS

    1.1  DEFINED TERMS.  The following terms shall have the meanings defined for
such terms in the Sections set forth below:

<TABLE>
<CAPTION>
TERM                                                           SECTION
----                                                          ---------
<S>                                                           <C>
Agreement...................................................  Preamble
Aggregate Cash Consideration................................  3.1
Articles of Merger..........................................  2.2
Base Value..................................................  2.6(e)
BIF.........................................................  4.1
Business Day................................................  2.4
Cash Consideration..........................................  2.6(a)
Capitalization Adjustment Fraction..........................  2.6(b)
Change of Control...........................................  9.1(h)
Closing.....................................................  2.4
Closing Date................................................  2.4
Closing Escrow Amount.......................................  3.2(b)
Code........................................................  Preamble
Committee...................................................  3.2(b)
Common Certificates.........................................  2.5(b)
Confidentiality Agreement...................................  7.2(b)
Cowlitz.....................................................  Preamble
Cowlitz Bank................................................  Preamble
Cowlitz Common Stock........................................  2.5(c)
Cowlitz Disclosure Schedule.................................  5.2
Cowlitz Bank Members........................................  3.2(b)
Cowlitz Preferred Stock.....................................  5.2
Cowlitz Reports.............................................  5.10
Cowlitz Y2K Plan............................................  5.14
CRA.........................................................  4.27
Dissenting Shares...........................................  2.5(d)
DPC Shares..................................................  2.5(c)
</TABLE>

                                      C-1
<PAGE>

<TABLE>
<CAPTION>
TERM                                                           SECTION
----                                                          ---------
<S>                                                           <C>
Effective Date..............................................  2.2
Effective Time..............................................  2.2
Environmental Laws..........................................  4.21
Equity Adjustment Amount....................................  2.6(b)
ERISA.......................................................  4.11(a)
ERISA Affiliate.............................................  4.11(a)
Escrow......................................................  3.2(b)
Escrow Agent................................................  3.2(b)
Escrow Agreement............................................  3.2(b)
Escrow Expiration Date......................................  3.2(b)
Escrowed Funds..............................................  3.2(b)
Exchange Act................................................  4.6
Exchange Agent..............................................  3.1
FDIC........................................................  4.1
GAAP........................................................  2.6(d)
Governmental Entity.........................................  4.4
Identified Loans............................................  2.6(a)
Injunction..................................................  8.1(e)
Liens.......................................................  4.3(b)
Loan Adjustment Factor......................................  3.2(b)
Loan File...................................................  4.24(d)
Loans.......................................................  4.24(a)
Material Adverse Effect (Northern)..........................  4.1
Material Adverse Effect (Cowlitz)...........................  5.1(a)
Merger......................................................  2.1
Merger Consideration........................................  2.6(a)
Nasdaq......................................................  4.4
Northern....................................................  Preamble
Northern Automated Systems..................................  4.28
Northern Common Stock.......................................  2.5(a)
Northern Contract...........................................  4.14(a)
Northern Disclosure Schedule................................  4.2(a)
Northern Members............................................  3.2(b)
Northern Reports............................................  4.12
Northern Stock Option Plan..................................  2.8
Northern Y2K Plan...........................................  4.28
Orders......................................................  6.2(o)
Oregon Articles of Merger...................................  2.2
Oregon Director.............................................  2.2
PBGC........................................................  4.11(c)
Plans.......................................................  4.11(a)
Proxy Statement/Prospectus..................................  4.4
Regulatory Agreement........................................  4.15
Reimbursable Losses.........................................  3.2(b)
REO.........................................................  4.19(a)
Representatives.............................................  6.2(f)
Requisite Regulatory Approvals..............................  8.1(c)
S-4.........................................................  4.4
SEC.........................................................  4.4
Securities Act..............................................  4.12
</TABLE>

                                      C-2
<PAGE>

<TABLE>
<CAPTION>
TERM                                                           SECTION
----                                                          ---------
<S>                                                           <C>
Stock Consideration.........................................  2.6(a)
Stock Exchange Fund.........................................  3.1
Stock Option Agreement......................................  2.12
Subsidiary..................................................  2.5(a)
Superior Proposal...........................................  9.1(h)
Surviving Bank..............................................  2.1
Takeover Proposal...........................................  6.2(f)
Tax Returns.................................................  4.10(c)
Taxes.......................................................  4.10(b)
Threshold Amount............................................  3.2(d)
Title 30....................................................  2.1
Title 53....................................................  2.1
Total Stockholders' Equity..................................  2.6(b)
Trust Account Shares........................................  2.5(c)
Washington Articles of Merger...............................  2.2
Washington Director.........................................  2.2
Washington Secretary........................................  2.2
Year 2000 Problem...........................................  4.28
</TABLE>

    1.2  OTHER DEFINITIONAL PROVISIONS.  The meanings given to terms defined
herein shall be equally applicable to both the singular and plural forms of such
terms.

2.  THE MERGER

    2.1  THE MERGER.  Subject to the terms and conditions of this Agreement, in
accordance with Title 30 of the Revised Code of Washington ("TITLE 30") and
Title 53 of the Oregon Revised Statutes ("TITLE 53") at the Effective Time (as
defined in Section 2.2 hereof), Northern shall merge (the "MERGER") with and
into Cowlitz Bank. Cowlitz Bank shall be the surviving bank (hereinafter
sometimes called the "SURVIVING BANK") in the Merger, and shall continue its
corporate existence under the laws of the State of Washington. The name of the
Surviving Bank shall be Cowlitz Bank. Upon consummation of the Merger, the
separate corporate existence of Northern shall terminate.

    2.2  EFFECTIVE TIME.  The Merger shall become effective as set forth in the
articles of merger (the "WASHINGTON ARTICLES OF MERGER") which shall be filed
with the Director of Financial Institutions of the State of Washington (the
"WASHINGTON DIRECTOR") and the Secretary of State of the State of Washington
(the "WASHINGTON SECRETARY") and in the articles of merger (the "OREGON ARTICLES
OF MERGER") which shall be filed with the Director of the Department of Consumer
and Business Services of the State of Oregon (the "OREGON DIRECTOR"), on the
Closing Date (as defined in Section 2.4(b) hereof). The term "EFFECTIVE TIME"
shall mean the date (the "EFFECTIVE DATE") and time when the Merger becomes
effective, as set forth in the Articles of Merger. The term "Articles of Merger"
shall mean the "WASHINGTON ARTICLES OF MERGER" and the "OREGON ARTICLES OF
MERGER". The filed Articles of Merger shall include this Agreement.

    2.3  EFFECTS OF THE MERGER.  At and after the Effective Time, the Merger
shall have the effects set forth in Chapter 49 of Title 30 and Chapter 711 of
Title 53.

    2.4  CLOSING OF THE MERGER.  Subject to the terms and conditions of this
Agreement, the closing of the Merger (the "CLOSING") will take place at
10:00 a.m. Pacific time, on a date to be specified by the parties, which shall
be the first Business Day following the later of (i) the date which is at least
five Business Days after the satisfaction or waiver (subject to applicable law)
of the latest to occur of the conditions set forth in Section 8 hereof, other
than conditions which by their terms are to be satisfied at Closing or (ii) in
the case that holders of more than 5% of the outstanding shares of Northern

                                      C-3
<PAGE>
Common Stock have sent or delivered a notice of dissent or voted against the
Merger, 35 days following the meeting of the Northern Stockholders to be held
pursuant to Section 7.3, or such other date or time as the parties may mutually
agree (the "CLOSING DATE"). For purposes of this Agreement, a "BUSINESS DAY"
shall mean any day that is not a Saturday, a Sunday or other day on which the
office of the Washington Director, the Washington Secretary or the Oregon
Director is closed.

    2.5  CONVERSION OF NORTHERN COMMON STOCK.  At the Effective Time, without
any action on the part of Cowlitz, Cowlitz Bank, Northern or the holder of any
of the shares of common stock of Northern, the Merger shall be effected in
accordance with the following terms:

        (a) Subject to Section 2.5(d), each share of the common stock, par value
    $1.00 per share, of Northern (the "Northern Common Stock") issued and
    outstanding immediately prior to the Effective Time (other than shares of
    Northern Common Stock held (x) in Northern's treasury or (y) directly or
    indirectly by Cowlitz or any of its Subsidiaries (as defined below) (except
    for Trust Account Shares and DPC Shares, as such terms are defined below)),
    shall be converted into the right to receive the Merger Consideration as
    provided below, without interest thereon. For purposes of this Agreement,
    "Subsidiary" means, with respect to any person, any corporation,
    partnership, joint venture, limited liability company or other entity
    controlled by such person directly or indirectly through one or more
    intermediaries.

        (b) All of the shares of Northern Common Stock converted into the right
    to receive the Merger Consideration pursuant to this Section 2 shall no
    longer be outstanding and shall automatically be canceled and shall cease to
    exist as of the Effective Time, and each certificate (each a "COMMON
    CERTIFICATE") previously representing any such shares shall thereafter
    represent solely the right to receive the Merger Consideration. Common
    Certificates previously representing shares of Northern Common Stock shall
    be exchanged for the Merger Consideration upon the surrender of such Common
    Certificates in accordance with Section 3.2 hereof, without any interest
    thereon.

        (c) At the Effective Time, all shares of Northern Common Stock that are
    owned by Northern as treasury stock and all shares of Northern Common Stock
    that are owned directly or indirectly by Cowlitz, Northern or a Subsidiary
    of Cowlitz (other than shares of Northern Common Stock held directly or
    indirectly in trust accounts, managed accounts and the like or otherwise
    held in a fiduciary or nominee capacity that are beneficially owned by third
    parties (any such shares, and shares of common stock, no par value per
    share, of Cowlitz ("COWLITZ COMMON STOCK") which are similarly held, whether
    held directly or indirectly by Cowlitz, Northern or a Subsidiary of Cowlitz,
    as the case may be, being referred to herein as "TRUST ACCOUNT SHARES") and
    other than any shares of Northern Common Stock held by Cowlitz, Northern or
    any a Subsidiary of Cowlitz in respect of a debt previously contracted (any
    such shares of Northern Common Stock, and shares of Cowlitz Common Stock
    which are similarly held, whether held directly or indirectly by Cowlitz,
    Northern or any a Subsidiary of Cowlitz, being referred to herein as "DPC
    SHARES")) shall be canceled and shall cease to exist and no Merger
    Consideration shall be delivered in exchange therefor.

        (d) Notwithstanding anything in this Agreement to the contrary, shares
    of Northern Common Stock issued and outstanding immediately prior to the
    Effective Time held by holders (if any) who have voted against the Merger or
    sent or delivered notices of dissent and who are eligible to and who have
    demanded appraisal rights with respect thereto in accordance with Sections
    711.175-.185 of Title 53 and, as of the Effective Time, shall not have
    failed to perfect or shall not have effectively withdrawn or lost their
    rights to appraisal and payment under Sections 711.175-.185 of Title 53 (the
    "DISSENTING SHARES") shall not be converted into the right to receive the
    Merger Consideration as described in Section 2.5(a), but holders of such
    shares shall instead be entitled to receive payment of the fair value of
    such Dissenting Shares in accordance with the provisions of Sections
    711.175-.185 of Title 53, except that any Dissenting Shares held by a holder
    which shall

                                      C-4
<PAGE>
    have failed to perfect or shall have effectively withdrawn or lost its right
    to appraisal and payment under Sections 711.175-.185 of Title 53 shall
    thereupon be deemed to have been converted into the right to receive the
    Merger Consideration as described in Section 2.5(a), without interest
    thereon. Northern shall give Cowlitz (i) prompt notice of any written
    demands for appraisal of any shares, attempted withdrawals of such demands,
    and any other instruments served pursuant to Sections 711.175-.185 of Title
    53 received by Northern relating to stockholders' rights of appraisal and
    (ii) the opportunity to direct all negotiations and proceedings with respect
    to demands for appraisal under Sections 711.175-.185 of Title 53. Northern
    shall not, except with the prior written consent of Cowlitz, voluntarily
    make any payment with respect to any demands for appraisals of capital stock
    of Northern, offer to settle or settle any such demands or approve any
    withdrawal of any such demands.

    2.6  MERGER CONSIDERATION.

        (a) For purposes of this Agreement and subject to the provisions hereof,
    the "MERGER CONSIDERATION" shall be $7.05 per share of Northern Common Stock
    and shall consist of two components: the Stock Consideration and the Cash
    Consideration. The "STOCK CONSIDERATION" shall be $5.42 per share of
    Northern Common Stock and shall consist of Cowlitz Common Stock valued at
    $6.563. The "CASH CONSIDERATION" shall be $1.63 per share of Northern Common
    Stock, but shall be subject to certain loss indemnification provisions
    described in Section 3.2(b). In addition, the Merger Consideration, the
    Stock Consideration and the Cash Consideration are subject to possible
    adjustment at the Effective Time pursuant to this Section 2.6.

        (b) If the Base Value of Northern, as calculated in accordance with
    Section 2.6(e) is less than $4,707,139 but at least $1,150,000, then the
    Merger Consideration and Stock Consideration shall be adjusted as of the
    Effective Time as follows:

           (i) the Merger Consideration shall be reduced by an amount (the
       "Equity Adjustment Amount") equal to the product of (A) 1.75 and (B) a
       fraction the numerator of which is the difference between $4,707,139 and
       the Base Value and the denominator of which is the number of issued and
       outstanding shares of Northern Common Stock as of the date of this
       Agreement; and

           (ii) the Stock Consideration shall be reduced by the Equity
       Adjustment Amount.

    In such event, there shall be no adjustment made to the Cash Consideration.

        (c) If the total number of issued and outstanding shares of Northern
    Common Stock as of the Effective Time is greater than the total number of
    issued and outstanding shares of Northern Common Stock as of the date of
    this Agreement, then the Merger Consideration, Stock Consideration and Cash
    Consideration (after making any adjustments required under (b) above, if
    applicable) shall be adjusted as of the Effective Time as follows:

           (i) the Merger Consideration shall be the amount per share equal to
       the amount calculated pursuant to 2.6(a) and (b) multiplied by a fraction
       (the "CAPITALIZATION ADJUSTMENT FRACTION"), the numerator of which is
       equal to the total number of issued and outstanding shares of Northern
       Common Stock as of the date of this Agreement and the denominator of
       which is equal to the total number of issued and outstanding shares of
       Northern Common Stock as of the Effective Time;

           (ii) the Stock Consideration shall be the amount per share equal to
       the amount calculated pursuant to 2.6(a) and (b) multiplied by the
       Capitalization Adjustment Fraction; and

           (iii) the Cash Consideration shall be the amount per share equal to
       $1.63 per share multiplied by the Capitalization Adjustment Fraction.

                                      C-5
<PAGE>
        (d) No later than the date which Cowlitz, Cowlitz Bank and Northern in
    good faith estimate to be forty-five (45) days prior to the Effective Time.
    Cowlitz and Cowlitz Bank shall, at their expense, engage a Loan Examiner to
    identify in writing the loans of Northern which in such Loan Examiner's
    good-faith judgment should under standard commercial banking practice be
    classified as Special Mention, Substandard, Doubtful or Loss (each as
    defined on Annex 2.6(d) hereto). The identification and classification of
    such loans (the "Identified Loans") shall be delivered by such Loan Examiner
    to Cowlitz, Cowlitz Bank and Northern no later than fifteen (15) business
    days after his engagement. If Northern does not deliver written notice to
    Cowlitz of Northern's objection to such identification and classification of
    Identified Loans within three (3) business days after receipt thereof, then
    such identification and classification shall be deemed final and binding on
    the parties. If Northern timely delivers written notice of its objection,
    then Northern, Cowlitz and Cowlitz Bank shall negotiate in good faith for up
    to three (3) business days thereafter to resolve such dispute. If such
    dispute remains unresolved after such period, Northern, Cowlitz and Cowlitz
    Bank shall promptly agree on another Loan Examiner to resolve such dispute.
    The decision of such other Loan Examiner shall be final and binding on the
    parties. The loans established as classified loans pursuant to this
    Section 2.6(d) are sometimes herein referred to as the "Identified Loans."
    As used herein, Loan Examiner shall mean Fred Singer or any loan examiner,
    loan reviewer or loan auditor (other than a current employee, officer or
    director of Cowlitz, Cowlitz Bank or Northern) with at least ten (10) years
    experience in commercial lending, banking and/or bank examining, including
    at least two (2) years as a loan examiner, loan reviewer or loan auditor.
    Northern agrees to provide access for the Loan Examiners as provided in
    Section 7.2(a) hereof. To the extent permitted by United States generally
    accepted accounting principles ("GAAP"), Northern agrees that it will have
    provided on its books prior to the Effective Time a reserve for each
    Identified Loan at least equal to (A) 5% of the principal amount of each
    Identified Loan classified as Special Mention, (B) 15% of the principal
    amount of each Identified Loan classified as Substandard, (C) 50% of the
    principal amount of each Identified Loan classified as Doubtful and
    (D) 100% of each Identified Loan classified as Loss, as well as a general
    reserve equal to 1 1/2% of the aggregate principal amounts of all
    outstanding loans (including without limitation all Identified Loans).
    Nothing in the immediately preceding sentence shall be deemed to preclude
    Northern from establishing, to the extent permitted by GAAP, reserves
    allocated to specific loans in amounts greater than set forth in such
    preceding sentence.

        (e) As used in this Agreement, "Base Value" shall mean difference
    between (i) total stockholders' equity of Northern immediately prior to the
    Effective Time as calculated in accordance with GAAP applied on a consistent
    basis and (ii) an amount equal to the after-tax reduction in such equity
    that would be necessary to reflect additional losses or reserves (to the
    extent not taken by Northern prior to the Effective Time) so that, for each
    Identified Loan, Northern would have a reserve at the Effective Time equal
    to (A) 5% of the principal amount of each Identified Loan classified as
    Special Mention, (B) 15% of the principal amount of each Identified Loan
    classified as Substandard, (C) 50% of the principal amount of each
    Identified Loan classified as Doubtful and (D) 100% of the principal amount
    of each Identified Loan classified as Loss, as well as a general reserve of
    1 1/2% equal to the aggregate principal amounts of all outstanding loans
    (including without limitation all Identified Loans).

        (f) If prior to the Effective Time the outstanding shares of Northern
    Common Stock shall, with the prior written consent of Cowlitz required by
    Section 6.2, have been increased, decreased, changed into or exchanged for a
    different number or kind of shares or securities as a result of a
    reorganization, recapitalization, reclassification, stock dividend, stock
    split, reverse stock split, or other similar change in Northern Common
    Stock's capitalization, then an appropriate and proportionate adjustment
    shall be made to the Merger Consideration.

                                      C-6
<PAGE>
    2.7  COWLITZ STOCK; COWLITZ BANK STOCK.  At and after the Effective Time,
each share of Cowlitz Common Stock and each share of any preferred stock of
Cowlitz issued and outstanding immediately prior to the Effective Time shall
remain an issued and outstanding share of common stock or preferred stock, as
the case may be, of Cowlitz and shall not be affected by the Merger. Each of the
issued and outstanding shares of common stock of Cowlitz Bank immediately prior
to the Effective Time shall remain issued and outstanding after the Merger as
shares of the Surviving Bank, which shall thereafter constitute all of the
issued and outstanding shares of common stock of the Surviving Bank. No capital
stock of Cowlitz Bank will be issued or used in the Merger. The amount of
capital of the Surviving Bank, the number of shares of the Surviving Bank's
capital stock and the par value thereof are set forth on Annex 2.7.

    2.8  OPTIONS.  The parties acknowledge and agree that Section 7.1.1 of the
Northern 1994 Stock Option Plan (the "NORTHERN STOCK OPTION PLAN") governs with
respect to the effect of the Merger on each option granted thereunder by
Northern to purchase shares of Northern Common Stock. In accordance with the
Northern Stock Option Plan, holders of such options shall have the right
immediately prior to the Effective Time to exercise such option to the extent
the vesting requirements set forth in the option agreement with respect to such
option have been satisfied. At the Effective Time, each option (vested or
unvested) granted by Northern to purchase shares of Northern Common Stock,
whether under the Northern Stock Option Plan or otherwise, which is outstanding
and unexercised immediately prior thereto shall cease to represent a right to
acquire shares of Northern Common Stock, shall automatically terminate and no
Merger Consideration or any other consideration shall be delivered in exchange
therefor.

    2.9  CHARTER.  At the Effective Time, the Charter of Cowlitz Bank, as in
effect at the Effective Time, shall be the Charter of the Surviving Bank, until
thereafter amended in accordance with applicable law.

    2.10  BYLAWS.  At the Effective Time, the Bylaws of Cowlitz Bank, as in
effect immediately prior to the Effective Time, shall be the Bylaws of the
Surviving Bank until thereafter amended in accordance with applicable law.

    2.11  BOARD OF DIRECTORS.  At the Effective Time, Cowlitz and Cowlitz Bank
shall take all action necessary to appoint William Spicer to the Surviving
Bank's Board of Directors. Except for such appointment, the directors of Cowlitz
Bank immediately prior to the Effective Time shall continue to be the directors
of the Surviving Bank, each to hold office in accordance with the Charter and
Bylaws of the Surviving Bank, until their respective successors are duly elected
or appointed (as the case may be) and qualified. The names and addresses of the
directors of Cowlitz Bank, as well as the address of Mr. Spicer, are set forth
on Annex 2.11

    2.12  OFFICERS.  The officers of Cowlitz Bank immediately prior to the
Effective Time shall continue to be officers of the Surviving Bank, each to hold
office in accordance with the Charter and Bylaws of the Surviving Bank and the
terms of their appointment by the Board of Directors. The names and addresses of
the senior officers of Cowlitz Bank are set forth on Annex 2.12.

    2.13  OFFICES.  The name and location of each office of Cowlitz Bank and
Northern are set forth on Annex 2.13. These will become offices of the Surviving
Bank at the Effective Time. The principal office of Cowlitz Bank will be the
principal office of the Surviving Bank.

    2.14  STOCK OPTION AGREEMENT.  As an inducement to Cowlitz to continue to
pursue the transactions contemplated by this Agreement, Northern will grant to
Cowlitz an option pursuant to the Stock Option Agreement, substantially in the
form of Exhibit 2.14 hereto (the "STOCK OPTION AGREEMENT")

                                      C-7
<PAGE>
    2.15  TAX CONSEQUENCES.  It is intended that, to the extent they so qualify,
the Merger shall constitute a reorganization within the meaning of
Section 368(a) of the Code and this Agreement shall constitute a "plan of
reorganization" as that term is used in Section 354 of the Code.

3.  EXCHANGE OF SHARES

    3.1  COWLITZ TO MAKE SHARES AVAILABLE.  At or prior to the Effective Time,
Cowlitz shall deposit, or shall cause to be deposited, with a bank or trust
company of recognized standing, or Cowlitz's transfer agent (the "EXCHANGE
AGENT"), for the benefit of the holders of Common Certificates, for exchange in
accordance with this Section 3, (i) certificates representing the shares of
Cowlitz Common Stock and an estimated amount of cash that may be payable in lieu
of any fractional shares (such cash, and certificates for shares of Cowlitz
Common Stock, together with any dividends or distributions with respect thereto,
being hereinafter referred to as the "STOCK EXCHANGE FUND") to be issued
pursuant to Section 2.5 and paid pursuant to Section 3.2(a) in exchange for
outstanding shares of Northern Common Stock and (ii) cash in an amount (the
"AGGREGATE CASH CONSIDERATION") equal to the product of the Cash Consideration
and the number of shares of Northern Common Stock outstanding at the Effective
Time to be paid pursuant to and in the manner set forth in Section 3.2(b) in
exchange for outstanding shares of Northern Common Stock.

    3.2  EXCHANGE OF CERTIFICATES.

        (a) As soon as practicable after the Effective Time, the Exchange Agent
    shall mail to each holder of record of a Common Certificate or Certificates
    a form of letter of transmittal (which shall specify that delivery shall be
    effected, and risk of loss and title to the Common Certificates shall pass,
    only upon delivery of the Common Certificates to the Exchange Agent) and
    instructions for use in effecting the surrender of the Common Certificates
    in exchange for the Merger Consideration, into which the shares of Northern
    Common Stock represented by such Common Certificate or Certificates shall
    have been converted pursuant to this Agreement. Subject to Section 2.5(d),
    upon proper surrender of a Common Certificate for exchange and cancellation
    to the Exchange Agent, together with such properly completed letter of
    transmittal, duly executed, the holder of such Common Certificate shall be
    entitled to receive in exchange therefor, as applicable, (i) a certificate
    representing that number of shares of Cowlitz Common Stock to which such
    holder of Northern Common Stock shall have become entitled pursuant to the
    provisions of Section 2 hereof, and (ii) a check representing the amount of
    cash payable in lieu of fractional shares of Cowlitz Common Stock, if any,
    which such holder has the right to receive in respect of the Common
    Certificate surrendered pursuant to the provisions of this Section 3, and
    the Common Certificate so surrendered shall forthwith be canceled. No
    interest will be paid or accrued on the cash payable in lieu of fractional
    shares.

        (b) ESCROW.

           (i) In order to ensure that Cowlitz Bank shall be properly reimbursed
       for certain losses, the Exchange Agent shall, promptly upon receipt of
       the Aggregate Cash Consideration, deliver an amount (the "ESCROWED
       FUNDS") equal to the product of (A) the Cash Consideration and (B) the
       total number of issued and outstanding shares of Northern Common Stock as
       of the Effective Time (excluding all Dissenting Shares), to an escrow
       agent (the "ESCROW AGENT") to be held in escrow (the "ESCROW") pursuant
       to an escrow agreement in substantially the form attached hereto as
       Exhibit 3.2, with such changes as may be reasonably requested by the
       Escrow Agent and subject to the addition of Schedule 2 to the Escrow
       Agreement in accordance with this Section 3.2(b) (the "ESCROW
       AGREEMENT"). The Escrow Agent shall be a bank, trust company or other
       entity mutually agreed upon by Cowlitz and Northern.

                                      C-8
<PAGE>
           (ii) A committee (the "COMMITTEE") shall be appointed by Northern and
       Cowlitz Bank to deliver instructions to the Escrow Agent with respect to
       the disbursement of the Escrowed Funds. Northern hereby appoints John
       Walrod and Kurt Wollenberg to serve on the Committee as representatives
       of the holders of Northern Common Stock (the "NORTHERN MEMBERS") and
       Cowlitz Bank hereby appoints Charles Jarrett and Larry Ellis to serve on
       the Committee as representatives of Cowlitz Bank (the "COWLITZ BANK
       MEMBERS"). Cowlitz Bank shall have the right, from time to time and in
       its sole discretion, to appoint a substitute Cowlitz Bank Member upon
       written notice to the Escrow Agent and the Northern Members. If a
       Northern Member should prior to the Effective Time become unable or
       unwilling to serve on the Committee, such Northern Member shall give
       Northern and Cowlitz prompt prior written notice thereof, and Northern
       shall have the right, in its sole discretion, to appoint a substitute
       Northern Member no later than the earlier of (A) the Effective Time or
       (B) five (5) business days after delivery of such notice. If a Northern
       Member should after the Effective Time become unable or unwilling to
       continue to serve on the Committee after the Effective Time, such
       Northern Member shall give Cowlitz Bank prior written notice thereof, and
       within five (5) business days after delivery of such notice, the
       remaining Northern Member shall have the right, in his or her sole
       discretion, to appoint a substitute Northern Member; PROVIDED, that such
       Substitute Northern Member (x) must have been a Stockholder at the
       Effective Time, (y) (1) must have been a director or officer of Northern
       at the Effective Time or (2) in the remaining Northern Member's
       reasonable judgment, must be a sophisticated financial investor and
       (z) is not a director, officer or employee of Cowlitz or Cowlitz Bank.
       The parties agree that no Northern Member or Cowlitz Bank Member shall
       have any liability to any party hereto or any holder of Northern Common
       Stock with respect to acts or omissions in his or her capacity as a
       member of the Committee, unless it is established in a final judicial
       determination by clear and convincing evidence that any decision or
       action was undertaken with deliberate intent to injure the holders of
       Northern Common Stock or with reckless disregard for the best interest of
       such holders, and in any event, the liability shall be limited to actual,
       proximate, quantifiable damages.

           (iii) The purpose of the Escrow shall be to ensure that Cowlitz Bank
       is reimbursed for losses relating to the Identified Loans. Schedule 2 to
       the Escrow Agreement shall be completed prior to the Effective Time by
       listing thereon each Identified Loan (as determined pursuant to
       Section 2.6(d)) and the Threshold Amount for each Identified Loan. Except
       as provided in the immediately succeeding sentence, the "Threshold
       Amount" shall mean for each Identified Loan the lesser of (A) the
       difference between (i) the reserve for such Identified Loan on the books
       of Northern immediately prior to the Effective Time (excluding any
       portion of the general reserve for all oustanding loans) and (ii) the
       Loan Adjustment Factor and (B) (i) 5% of the outstanding principal amount
       if the Identified Loan is classified as Special Mention pursuant to the
       procedure set forth in Section 2.6(d), less the Loan Adjustment Factor,
       (ii) 15% of the principal amount if the Identified Loan is classified as
       Substandard, less the Loan Adjustment Factor, (iii) 50% of the principal
       amount if the Identified Loan is classified as Doubtful, less the Loan
       Adjustment Factor, and (iv) 100% of the principal amount if the
       Identified Loan is classified as Loss, less the Loan Adjustment Factor.
       Notwithstanding the preceding sentence, if the Base Value exceeds
       $4,707,139 and the amount determined pursuant to clause (A) of the
       preceding sentence for an Identified Loan exceeds the amount determined
       pursuant to clause (B) for such Identified Loan, then the Threshold
       Amount for such Identified Loan shall equal the amount determined
       pursuant to clause (A) above. "Loan Adjustment Factor" will be $0 if
       Northern has on its books immediately prior to the Effective Time a
       general reserve equal to at least 1 1/2% of the aggregate principal
       amounts of all outstanding loans (including without limitation all
       Identified Loans). If such general reserve is less than 1 1/2%, then the
       Loan Adjustment Factor will equal

                                      C-9
<PAGE>
       the different between (i) 1 1/2% and (ii) the percentage of the remaining
       general reserve that would be applicable to the Identified Loans after
       moving sufficient general reserves to the non-Identified Loans so that
       all non-Identified Loans would have a general reserve of 1 1/2%.

           (iv) Reimbursements shall be made only for such losses identified
       during the period from the Effective Date to the date (the "ESCROW
       EXPIRATION DATE") which is 24 months after the Effective Date. Cowlitz
       Bank shall be entitled to be reimbursed for any loss on an Identified
       Loan to the extent that such loss exceeds the Threshold Amount for such
       Identified Loan ("REIMBURSABLE LOSSES"); PROVIDED, HOWEVER, that the
       aggregate of all of such reimbursements shall not exceed the Escrowed
       Funds. The amount of Reimbursable Losses shall be calculated in the
       manner set forth in the Escrow Agreement. Interest earned on the
       Aggregate Cash Consideration while held in the Escrow shall remain in the
       Escrow and shall not be available to reimburse Cowlitz Bank for
       Reimbursable Losses. Fees and any other amounts owed to the Escrow Agent
       shall be paid, first, out of the interest earned on the Escrowed Funds
       and, second, out of the Escrowed Funds.

           (v) The Escrow shall terminate upon the later to occur of (x) the
       Escrow Expiration Date and (y) the proper reimbursement to Cowlitz Bank
       of the Reimbursable Losses. Upon termination of the Escrow, the Escrow
       Agent shall deliver all amounts then in Escrow (after deduction for
       expenses and costs) to the Exchange Agent (the "CLOSING ESCROW AMOUNT").
       Subject to Section 2.5(d), the Exchange Agent shall promptly pay, to each
       holder of record of a Common Certificate who has properly surrendered
       such Common Certificate as provided in Section 3.2(a), an amount for each
       share of Northern Common Stock represented by such Common Certificate
       equal to (A) the Closing Escrow Amount divided by (B) the number of
       shares of Northern Common Stock outstanding at the Effective Time

           (vi) The Cowlitz Members shall not have any duty to represent the
       interests of stockholders of Northern and shall have no liability
       whatsoever to such stockholders. The Northern Members will represent the
       interests of stockholders of Northern, but no Northern Member shall have
       any liability to any holder of Northern Common Stock with respect to his
       or her capacity as a member of the Committee, unless it is established in
       a final judicial determination by clear and convincing evidence that any
       decision or action was undertaken with deliberate intent to injure the
       holders of Northern Common Stock or with reckless disregard for the best
       interests of such holders, and in any event, the liability shall be
       limited to actual, proximate, quantifiable damages.

        (c) No dividends or other distributions with a record date after the
    Effective Time with respect to Cowlitz Common Stock shall be paid to the
    holder of any unsurrendered Common Certificate entitled to receive shares of
    Cowlitz Common Stock hereunder until the holder thereof shall surrender such
    Common Certificate in accordance with this Section 3. After the surrender of
    a Common Certificate in accordance with this Section 3, the record holder
    thereof shall be entitled to receive any such dividends or other
    distributions, without any interest thereon, which theretofore had become
    payable with respect to shares of Cowlitz Common Stock represented by such
    Common Certificate.

        (d) If any certificate representing shares of Cowlitz Common Stock is to
    be issued in the name of or cash is to be paid to a person other than the
    registered holder of the Common Certificate surrendered in exchange
    therefor, it shall be a condition of the issuance thereof that the Common
    Certificate so surrendered shall be properly endorsed (or accompanied by an
    appropriate instrument of transfer) and otherwise in proper form for
    transfer, and that the person requesting such exchange shall pay to the
    Exchange Agent in advance any transfer or other taxes required by reason of
    the issuance of a certificate representing shares of Cowlitz Common Stock in
    the name of and payment of cash to any person other than the registered
    holder of the Common

                                      C-10
<PAGE>
    Certificate surrendered, or required for any other reason, or shall
    establish to the satisfaction of the Exchange Agent that such tax has been
    paid or is not payable.

        (e) At or after the Effective Time, there shall be no transfers on the
    stock transfer books of Northern of the shares of Northern Common Stock
    which were issued and outstanding immediately prior to the Effective Time.
    If, after the Effective Time, Common Certificates representing such shares
    are presented for transfer to the Exchange Agent, they shall be canceled and
    exchanged for certificates representing shares of Cowlitz Common Stock and
    payment of cash as provided in this Section 3.

        (f) Notwithstanding anything to the contrary contained herein, no
    certificates or scrip representing fractional shares of Cowlitz Common Stock
    shall be issued upon the surrender for exchange of Common Certificates, no
    dividend or distribution with respect to Cowlitz Common Stock shall be
    payable on or with respect to any fractional share, and such fractional
    share interests shall not entitle the owner thereof to vote or to any other
    rights of a stockholder of Cowlitz. In lieu of the issuance of any such
    fractional share, Cowlitz shall pay to each former holder of Northern Common
    Stock who otherwise would be entitled to receive such fractional share an
    amount in cash determined by multiplying (i) the Market Value of Cowlitz
    Common Stock as of the Effective Date by (ii) the fraction of a share of
    Cowlitz Common Stock to which such holder would otherwise be entitled to
    receive pursuant to Section 2.5 hereto. For purposes of determining any such
    fractional share interests, all shares of Northern Common Stock owned by any
    Northern stockholder shall be combined so as to calculate the maximum number
    of shares of Cowlitz Common Stock issuable to such holder of Northern Common
    Stock and no such holder shall receive cash in an amount equal to or greater
    than the Stock Consideration per share.

        (g) Any portion of the Stock Exchange Fund that remains unclaimed by the
    stockholders of Northern for twelve months after the Effective Time shall be
    paid, at the request of Cowlitz, to Cowlitz. Any stockholders of Northern
    who have not theretofore complied with this Section 3 shall thereafter look
    only to Cowlitz for payment of the shares of Cowlitz Common Stock, cash in
    lieu of any fractional shares and unpaid dividends and distributions on the
    Cowlitz Common Stock deliverable in respect of each share of Northern Common
    Stock held by such stockholder at the Effective Time as determined pursuant
    to this Agreement, in each case, without any interest thereon. After the
    Exchange Agent has received the Closing Escrow Amount and made the payments
    to former holders of Northern Common Stock as required by Section 3(b), any
    unpaid amounts shall promptly be delivered by the Exchange Agent to Cowlitz.
    Any holders of Northern Common Stock who have not theretofore complied with
    this Section 3 shall thereafter look only to Cowlitz for payment of the Cash
    Consideration (as adjusted by the amounts paid to Cowlitz Bank from the
    Escrow with respect to Reimbursable Losses) to which they are entitled
    pursuant to this Agreement, without any additional interest thereon.
    Notwithstanding anything to the contrary contained herein, none of Cowlitz,
    Northern, the Exchange Agent or any other person shall be liable to any
    former holder of shares of Northern Common Stock for any amount properly
    delivered to a public official pursuant to applicable abandoned property,
    escheat or similar laws.

        (h) In the event any Common Certificate shall have been lost, stolen or
    destroyed, upon the making of an affidavit of that fact by the person
    claiming such Common Certificate to be lost, stolen or destroyed and, if
    required by Cowlitz, the posting by such person of a bond in such amount as
    Cowlitz may determine is reasonably necessary as indemnity against any claim
    that may be made against it with respect to such Common Stock Certificate,
    the Exchange Agent will issue in exchange for such lost, stolen or destroyed
    Common Certificate the shares of Cowlitz Common Stock and cash (including
    cash in lieu of fractional shares) deliverable in respect thereof pursuant
    to this Agreement.

                                      C-11
<PAGE>
4.  REPRESENTATIONS AND WARRANTIES OF NORTHERN

    Northern hereby represents and warrants to Cowlitz and Cowlitz Bank as
follows:

    4.1  CORPORATE ORGANIZATION.  Northern is a banking corporation duly
organized and validly existing under the laws of the State of Oregon. Northern
has the corporate power and authority to own or lease all of its properties and
assets and to carry on its business as it is now being conducted, and is duly
licensed or qualified to do business in each jurisdiction in which the nature of
the business conducted by it or the character or location of the properties and
assets owned or leased by it makes such licensing or qualification necessary,
except where the failure to be so licensed or qualified would not have nor
reasonably be expected to have a Material Adverse Effect (as defined below) on
Northern. As used in this Agreement, the term "MATERIAL ADVERSE EFFECT" means,
with respect to Northern, a material adverse effect on the business, results of
operations, financial condition or prospects of Northern or a material adverse
effect on Northern's ability to consummate the transactions contemplated hereby
on a timely basis; PROVIDED, HOWEVER, that a Material Adverse Effect on Northern
shall not be deemed to have occurred as a result of (i) any changes in laws,
regulations or GAAP or (ii) any changes in general economic conditions affecting
commercial banking businesses generally. The deposits of Northern are insured by
the Federal Deposit Insurance Corporation (the "FDIC") through the Bank
Insurance Fund (the "BIF") to the fullest extent permitted by law. The copies of
the Charter and Bylaws of Northern which have previously been made available to
Cowlitz are true, complete and correct copies of such documents as in effect as
of the date of this Agreement. Northern has no Subsidiaries.

    4.2  CAPITALIZATION.

        (a) The authorized capital stock of Northern consists of 10,000,000
    shares of Northern Common Stock and no shares of preferred stock. At the
    close of business on August 31, 1999, there were 1,225.597 shares of
    Northern Common Stock outstanding and no shares of Northern Common Stock
    held in Northern's treasury. As of September 13, 1999, no shares of Northern
    Common Stock were reserved for issuance, except for 868,032 shares of
    Northern Common Stock reserved for issuance upon the exercise of stock
    options pursuant to the Northern Stock Option Plan, 738,211 shares of
    Northern Common Stock reserved for issuance upon exercise of the stock
    options set forth in Section 4.2(a) of the disclosure schedule of Northern
    delivered to Cowlitz concurrently herewith (the "NORTHERN DISCLOSURE
    SCHEDULE"), and 243,893 shares of Northern Common Stock reserved for
    issuance upon exercise of the Option (as defined in the Stock Option
    Agreement). All of the issued and outstanding shares of Northern Common
    Stock have been duly authorized and validly issued and are fully paid,
    nonassessable and free of preemptive rights, with no personal liability
    attaching to the ownership thereof. As of the date of this Agreement, except
    (i) as set forth in Section 4.2(a) of the Northern Disclosure Schedule,
    (ii) the Option and (iii) as set forth elsewhere in this Section 4.2(a),
    Northern does not have and is not bound by any outstanding subscriptions,
    options, warrants, calls, commitments or agreements of any character calling
    for the purchase or issuance of any shares of Northern Common Stock or
    Northern Preferred Stock or any other equity securities of Northern or any
    securities representing the right to purchase or otherwise receive any
    shares of Northern Common Stock or Northern Preferred Stock. Except as set
    forth in Section 4.2(a) of the Northern Disclosure Schedule, since
    August 31, 1999, Northern has not issued any shares of its capital stock or
    any securities convertible into or exercisable for any shares of its capital
    stock, other than the exercise of employee stock options granted prior to
    such date and as disclosed in Section 4.2(a) of the Northern Disclosure
    Schedule. Northern has no stockholder rights plan, anti-takeover plan,
    "poison pill" or other similar plan.

        (b) Except as disclosed in Section 4.2(b) of the Northern Disclosure
    Schedule, Northern does not beneficially own or control, directly or
    indirectly, any shares of stock or other equity interest in

                                      C-12
<PAGE>
    any depository institution (as defined in 12 U.S.C. Section1813(c)),
    corporation, firm, partnership, joint venture or other entity.

    4.3  AUTHORITY; NO VIOLATION.

        (a) Northern has full corporate power and authority to execute and
    deliver this Agreement and the Stock Option Agreement and to consummate the
    transactions contemplated hereby and thereby. The execution and delivery of
    this Agreement and the Stock Option Agreement and the consummation of the
    transactions contemplated hereby and thereby have been duly and validly
    approved by the Board of Directors of Northern. The Board of Directors of
    Northern has directed that this Agreement and the Merger be submitted to
    Northern's stockholders for approval at a meeting of such stockholders and,
    except for the approval of this Agreement and the Merger by the affirmative
    vote of the holders of two-thirds of the voting power represented by the
    outstanding shares of Northern Common Stock, no other corporate proceedings
    on the part of Northern are necessary to approve this Agreement or the Stock
    Option Agreement or to consummate the transactions contemplated hereby and
    thereby. This Agreement and the Stock Option Agreement have been duly and
    validly executed and delivered by Northern and (assuming due authorization,
    execution and delivery by Cowlitz and Cowlitz Bank) each constitutes a valid
    and binding obligation of Northern, enforceable against Northern in
    accordance with its terms, except as enforcement may be limited by general
    principles of equity whether applied in a court of law or a court of equity
    and by bankruptcy, insolvency, fraudulent transfer, receivership, or
    conservatorship and similar laws affecting creditors' rights and remedies
    generally.

        (b) Except as set forth in Section 4.3(b) of the Northern Disclosure
    Schedule, neither the execution and delivery of this Agreement or the Stock
    Option Agreement by Northern nor the consummation by Northern of the
    transactions contemplated hereby or thereby, nor compliance by Northern with
    any of the terms or provisions hereof or thereof, will (i) violate any
    provision of the Charter or Bylaws of Northern or (ii) assuming that the
    consents and approvals referred to in Section 4.4 are duly obtained,
    (x) violate any statute, code, ordinance, rule, regulation, judgment, order,
    writ, decree or injunction applicable to Northern or any of its properties
    or assets, or (y) violate, conflict with, result in a breach of any
    provision of or the loss of any benefit under, constitute a default (or an
    event which, with notice or lapse of time, or both, would constitute a
    default) under, result in the termination of or a right of termination or
    cancellation under, accelerate the performance required by, or result in the
    creation of any liens, charges, pledges, encumbrances, mortgages, adverse
    rights or claims, or security interests whatsoever ("LIENS") upon any of the
    properties or assets of Northern under, any of the terms, conditions or
    provisions of any note, bond, mortgage, indenture, deed of trust, license,
    lease, agreement or other instrument or obligation to which Northern is a
    party, or by which Northern or any of its properties or assets may be bound
    or affected, except (in the case of clause (y) above) for such violations,
    conflicts, breaches or defaults which, either individually or in the
    aggregate, will not have and would not reasonably be expected to have a
    Material Adverse Effect on Northern.

    4.4  CONSENTS AND APPROVALS.  Except for (i) the approval of this Agreement
and the Merger by the FDIC, the Washington Director and the Oregon Director,
(ii) approval of the listing of Cowlitz Common Stock to be issued in the Merger
on The Nasdaq National Market ("NASDAQ"), (iii) the filing with the Securities
and Exchange Commission (the "SEC") and the FDIC of a proxy statement in
definitive form relating to the meetings of Northern's and Cowlitz's
stockholders to be held to vote on approval of this Agreement and the Merger
(the "PROXY STATEMENT/PROSPECTUS") and the filing and declaration of
effectiveness of the registration statement on Form S-4 (the "S-4") in which the
Proxy Statement/Prospectus will be included as a prospectus and any filings or
approvals under applicable state securities laws, (iv) the filing of the
Articles of Merger with the Washington Director, the Washington Secretary and
the Oregon Director, (v) the approval of this Agreement and the Merger by the
requisite votes of the stockholders of Northern, the approval of the issuance of
the shares of

                                      C-13
<PAGE>
Cowlitz Common Stock in the Merger by the stockholders of Cowlitz and the
approval of this Agreement and the Merger by the sole stockholder of Cowlitz
Bank, (vi) the consents and approvals set forth in Section 4.4 of the Northern
Disclosure Schedule, and (vii) the consents and approvals of third parties which
are not Governmental Entities (as defined below), the failure of which to obtain
will not have and would not be reasonably expected to have, individually or in
the aggregate, a Material Adverse Effect, no consents or approvals of, or
filings or registrations with, any court, administrative agency or commission or
other governmental authority or instrumentality or self-regulatory organization
(each a "GOVERNMENTAL ENTITY") or with any third party are necessary in
connection with (A) the execution and delivery by Northern of this Agreement and
(B) the consummation by Northern of the Merger and the other transactions
contemplated hereby.

    4.5  REPORTS.  Northern has timely filed all material reports, registrations
and statements, together with any amendments required to be made with respect
thereto, that they were required to file since January 1, 1996 with any
Governmental Entity and have paid all fees and assessments due and payable in
connection therewith. Except for normal examinations conducted by a Governmental
Entity in the regular course of the business of Northern or as set forth in
Section 4.5 of the Northern Disclosure Schedule, no Governmental Entity has
initiated any proceeding or, to the best knowledge of Northern, threatened an
investigation into the business or operations of Northern since January 1, 1996.
Except as set forth in Section 4.5 of the Northern Disclosure Schedule, there is
no material unresolved violation, criticism or exception by any Governmental
Entity with respect to any report or statement relating to any examinations of
Northern.

    4.6  FINANCIAL STATEMENTS.  Northern has previously made available to
Cowlitz copies of (a) the balance sheets of Northern, as of December 31, for the
fiscal years 1997 and 1998, and the related statements of operations,
stockholders' equity and cash flows for the fiscal years 1996 through 1998,
inclusive, as reported in Northern's Annual Report on Form 10-KSB for the fiscal
year ended December 31, 1998 filed with the FDIC under the Securities Exchange
Act of 1934, as amended (the "EXCHANGE ACT"), in each case accompanied by the
audit report of Moss Adams LLP, independent auditors with respect to Northern,
(b) the unaudited balance sheets of Northern as of June 30, 1998 and June 30,
1999 and the related unaudited statements of operations, stockholders, equity
and cash flows for the three-month periods then ended, as reported in Northern's
Quarterly Report on Form 10-QSB for the period ended June 30, 1999 filed with
the FDIC under the Exchange Act and (c) the amended and restated financial
statements on and for the period ended June 30, 1999 as reported in Northern's
Amended Quarterly Report on Form 10-QSB/A filed with the FDIC under the Exchange
Act. Each of the financial statements referred to in this Section 4.6 (including
the related notes, where applicable) fairly present, and the financial
statements referred to in Section 7.11 hereof (including the related notes,
where applicable) will fairly present (subject, in the case of the unaudited
statements, to normal recurring adjustments, none of which are expected to be
material in nature or amount), the results of the operations and changes in
stockholders' equity and financial position of Northern for the respective
fiscal periods or as of the respective dates therein set forth. Each of such
financial statements (including the related notes, where applicable) complies,
and the financial statements referred to in Section 7.11 hereof (including the
related notes, where applicable) will comply, in all material respects with
applicable accounting requirements and with the published rules and regulations
of the FDIC with respect thereto and each of such financial statements
(including the related notes, where applicable) has been, and the financial
statements referred to in Section 7.11 (including the related notes, where
applicable) will be, prepared in accordance with GAAP consistently applied
during the periods involved, except in each case as indicated in such statements
or in the notes thereto or, in the case of unaudited statements, as permitted by
Form 10-QSB. The books and records of Northern have been, and are being,
maintained in all material respects in accordance with GAAP and any other
applicable legal and accounting requirements and reflect only actual
transactions.

                                      C-14
<PAGE>
    4.7  BROKER'S FEES.  Except as set forth in Section 4.7 of the Northern
Disclosure Schedule, neither Northern nor any of its officers or directors has
employed any broker or finder or incurred any liability for any broker's fees,
commissions or finder's fees in connection with any of the transactions
contemplated by this Agreement. Copies of all agreements with each broker or
finder listed in Section 4.7 of the Northern Disclosure Schedule have previously
been furnished to Cowlitz.

    4.8  ABSENCE OF CERTAIN CHANGES OR EVENTS.

        (a) Except as publicly disclosed in the Northern Reports (as defined in
    Section 4.12) filed prior to the date hereof, or as set forth in
    Section 4.8(a) of the Northern Disclosure Schedule, since December 31, 1998,
    no event has occurred which has had or would reasonably be expected to have,
    individually or in the aggregate, a Material Adverse Effect on Northern.

        (b) Except as publicly disclosed in the Northern Reports filed prior to
    the date hereof, or as set forth in Section 4.8(b) of the Northern
    Disclosure Schedule, since December 31, 1998, Northern has carried on its
    business in all material respects in the ordinary course of business, and
    Northern has not (i) except for normal increases in the ordinary course of
    business consistent with past practice and except as required by applicable
    law, increased the wages, salaries, compensation, pension or other fringe
    benefits or perquisites payable to any officer or director, other than
    persons newly hired for or promoted to such position, from the amount
    thereof in effect as of December 31, 1998, or granted any severance or
    termination pay, entered into any contract to make or grant any severance or
    termination pay, or paid any bonus, in each case to any such officer or
    director, other than pursuant to preexisting agreements, arrangements or
    bonus plans, or (ii) suffered any strike, work stoppage, slow-down or other
    labor disturbance.

    4.9  LEGAL PROCEEDINGS.

        (a) Except as set forth in Section 4.9(a) of the Northern Disclosure
    Schedule, Northern is not a party to any, and there are no pending or, to
    the best of Northern's knowledge, threatened legal, administrative, arbitral
    or other proceedings, claims, actions or governmental or regulatory
    investigations of any nature against Northern or challenging the validity or
    propriety of the transactions contemplated by this Agreement as to which
    there is a significant possibility of an adverse determination and which, if
    adversely determined, would, individually or in the aggregate, have or
    reasonably be expected to have a Material Adverse Effect on Northern.

        (b) Except as set forth in Section 4.9(b) of the Northern Disclosure
    Schedule, there is no injunction, order, judgment, decree or regulatory
    restriction specifically imposed upon Northern or its assets which has had,
    or would reasonably be expected to have, a Material Adverse Effect on
    Northern or the Surviving Bank.

    4.10  TAXES.

        (a) Except as set forth in Section 4.10(a) of the Northern Disclosure
    Schedule: (i) Northern has (A) duly and timely filed (including pursuant to
    applicable extensions granted without penalty) all Tax Returns (as
    hereinafter defined) required to be filed at or prior to the Effective Time,
    and such Tax Returns are true, correct and complete, and (B) paid in full on
    a timely basis, or established an adequate reserve (excluding reserves for
    deferred taxes) in the financial statements of Northern (in accordance with
    GAAP) for all Taxes (as hereinafter defined) with respect to items or
    periods covered by such Tax Returns (whether or not shown or reportable on
    such Tax Returns); (ii) no deficiencies for any Taxes (as hereinafter
    defined) have been proposed, asserted or assessed against or with respect to
    Northern and no audit by any taxing authority is in process, pending or
    threatened; (iii) there are no liens for Taxes upon the assets of Northern
    except for statutory liens for current Taxes not yet due; (iv) Northern is
    not and has never been a party to any tax sharing agreement; (v) Northern
    has not waived any statute of limitations with respect to any Taxes or Tax
    Returns or agreed to any extension of time with respect to the assessment of

                                      C-15
<PAGE>
    Taxes or deficiencies; (vi) Northern has withheld and paid over all Taxes
    required to have been withheld and paid over and complied with all
    information reporting and backup withholding requirements, including
    maintenance of required records with respect thereto, in connection with
    amounts paid or owing to any employee, creditor, independent contractor or
    other third party; and (vii) Northern has never been a member of an
    "affiliated group" within the meaning of Section 1504 of the Code filing a
    consolidated federal income Tax Return (other than a group the common parent
    of which was Northern) or has any liability for the Taxes of any other
    person (other than Northern) under Treasury Regulations Section 1.1502-6 (or
    any similar provision of state, local or foreign law) as a transferee or
    successor, by contract or otherwise.

        (b) For purposes of this Agreement, "TAXES" shall mean all taxes,
    charges, fees, levies, penalties or other assessments imposed by any
    federal, state, local or foreign taxing authority, including, but not
    limited to income, excise, property, sales, transfer, franchise, payroll,
    withholding, social security or other similar taxes, including any interest
    or penalties, additions to tax or additional amounts attributable thereto.

        (c) For purposes of this Agreement, "TAX RETURN" shall mean any return,
    report, information return or other document (including any related or
    supporting information) with respect to Taxes, including without limitation
    all information returns or reports with respect to backup withholding and
    other payments to third parties.

        (d) Northern has not filed a consent to the application of
    Section 341(f) of the Code.

        (e) Northern has made available to Cowlitz true and complete copies of
    all income tax audit reports and closing or other agreements related to
    Taxes and all federal and state income or franchise tax returns Northern has
    filed since its inception.

        (f) Northern does not do business in or derive income from any state,
    local, territorial or foreign taxing jurisdiction other than those for which
    all Tax Returns have been furnished.

        (g) Northern is not and has never been a United States real property
    holding corporation within the meaning of Section 897(c)(2) of the Code.

        (h) Northern has not entered into any agreement that would require it to
    make any payment that is not deductible pursuant to Section 280G, 404 or 162
    of the Code.

        (i) Northern has not executed a power of attorney with respect to Taxes.

        (j) Northern has not agreed, and is not required to make, any adjustment
    under Section 481 of the Code by reason of a change in accounting method.

    4.11  EMPLOYEES; EMPLOYEE BENEFIT PLANS.

        (a) Section 4.11(a) of the Northern Disclosure Schedule sets forth a
    true and complete list of each material employee benefit plan, arrangement
    or agreement and any amendments or modifications thereof (including, without
    limitation, all stock purchase, stock option, severance, employment,
    change-in-control, health/welfare and Code Section 125 plans, fringe
    benefit, bonus, incentive, deferred compensation and other agreements,
    programs, policies and arrangements, whether or not subject to the Employee
    Retirement Income Security Act of 1974, as amended ("ERISA")) that is
    maintained as of the date of this Agreement (the "PLANS") by Northern or by
    any trade or business, whether or not incorporated (an "ERISA AFFILIATE"),
    all of which together with Northern would be deemed a "single employer'
    within the meaning of Section 4001 of ERISA.

        (b) Northern has previously made available to Cowlitz true and complete
    copies of each of the Plans and all related documents, including but not
    limited to (i) the actuarial reports for each

                                      C-16
<PAGE>
    Plan (if applicable) for each of the last two years, and (ii) the most
    recent determination letter from the Internal Revenue Service (if
    applicable) for each Plan.

        (c) Except as set forth in Section 4.11(c) of the Northern Disclosure
    Schedule, (i) each of the Plans has been operated and administered in all
    material respects in accordance with applicable laws, including but not
    limited to ERISA and the Code, (ii) each of the Plans intended to be
    "qualified" within the meaning of Section 401(a) of the Code has been
    determined to be so qualified by the Internal Revenue Service or will be
    submitted for such determination within the applicable remedial amendment
    period, (iii) with respect to each Plan which is subject to Title IV of
    ERISA, the present value of accrued benefits under such Plan, based upon the
    actuarial assumptions used for funding purposes in the most recent actuarial
    report prepared by such Plan's actuary with respect to such Plan, did not,
    as of its latest valuation date, exceed the then current value of the assets
    of such Plan allocable to such accrued benefits, (iv) no Plan provides
    benefits, including without limitation death or medical benefits (whether or
    not insured), with respect to current or former employees of Northern or any
    ERISA Affiliate beyond their retirement or other termination of service,
    other than (w) coverage mandated by applicable law, (x) death benefits or
    retirement benefits under any "employee pension plan," as that term is
    defined in Section 3(2) of ERISA, (y) deferred compensation benefits accrued
    as liabilities on the books of Northern or any ERISA Affiliates or
    (z) benefits the full cost of which is borne by the current or former
    employee (or his beneficiary), (v) to the best knowledge of Northern no
    liability under Title IV of ERISA has been incurred by Northern or any ERISA
    Affiliate that has not been satisfied in full (other than payment of
    premiums not yet due to the Pension Benefit Guaranty Corporation (the
    "PBGC")), and no condition exists that presents a material risk to Northern
    or any ERISA Affiliate of incurring a material liability thereunder,
    (vi) no Plan is a "multi-employer pension plan," as such term is defined in
    Section 3(37) of ERISA, (vii) to the best knowledge of Northern all
    contributions or other amounts payable by Northern as of the Effective Time
    with respect to each Plan in respect of current or prior plan years have
    been paid or accrued in accordance with GAAP and Section 412 of the Code,
    (viii) to the best knowledge of Northern neither Northern nor any ERISA
    Affiliate has engaged in a transaction in connection with which Northern or
    any ERISA Affiliate could be subject to either a material civil penalty
    assessed pursuant to Section 409 or 502(i) of ERISA or a material tax
    imposed pursuant to Section 4975 or 4976 of the Code, and (ix) to the best
    knowledge of Northern there are no pending, threatened or anticipated claims
    (other than routine claims for benefits) by, on behalf of or against any of
    the Plans or any trusts related thereto which would, individually or in the
    aggregate, have or be reasonably expected to have a Material Adverse Effect
    on Northern.

        (d) Except as set forth in Section 4.11(d) of the Northern Disclosure
    Schedule, no Plan exists which provides for or could result in the payment
    to any Northern employee of any money or other property or rights or
    accelerate the vesting or payment of such amounts or rights to any Northern
    employee as a result of the transactions contemplated by this Agreement,
    including the Merger, whether or not such payment or acceleration would
    constitute a parachute payment within the meaning of Code Section 280G.
    Except as set forth in Section 4.11(d) of the Northern Disclosure Schedule,
    since December 31, 1998, Northern has not taken any action that would result
    in the payment of any amounts, or the accelerated vesting of any rights or
    benefits, under any Plan set forth in Section 4.11(d) of the Northern
    Disclosure Schedule.

        (e) To the best knowledge of Northern, except as set forth in
    Section 4.11(e) of the Northern Disclosure Schedule, Northern is not a party
    to and is not bound by any contract, arrangement or understanding (whether
    written or oral) (i) with any consultants receiving in excess of $50,000
    annually or (ii) with respect to the term of employment or compensation of
    any employees. To the best knowledge of Northern, except as provided under
    the Plans set forth in Sections 4.11(d) and (e) of the Northern Disclosure
    Schedule and other agreements or arrangements set forth in

                                      C-17
<PAGE>
    Sections 4.11(d) and (e) of the Northern Disclosure Schedule, consummation
    of the transactions contemplated by this Agreement will not (either alone or
    upon the occurrence of any additional acts or events) result in any payment
    (whether of severance pay or otherwise) becoming due from Northern to any
    officer or employee thereof. Northern has previously delivered or made
    available to Cowlitz true and complete copies of all consulting agreements
    calling for payments in excess of $50,000 annually and employment and
    deferred compensation agreements (or forms thereof) that are in writing to
    which Northern is a party.

        (f) Except as set forth in Section 4.11(f) of the Northern Disclosure
    Schedule, no current employee of Northern received aggregate remuneration
    (bonus, salary and commission) in excess of $100,000 for 1998 or would
    reasonably be expected to receive aggregate remuneration (excluding
    severance or other payments which, pursuant to an agreement or arrangement
    set forth in Section 4.11(e) of the Northern Disclosure Schedule, are made
    as a result of consummation of the transactions contemplated by this
    Agreement, either alone or upon the occurrence of any additional acts or
    events) in excess of $100,000 in 1999.

    4.12  FDIC REPORTS.  Northern has previously made available to Cowlitz an
accurate and complete copy of each final registration statement, prospectus,
report, schedule and definitive proxy statement filed since January 1, 1996 and
prior to the date hereof by Northern or any of its Subsidiaries with the FDIC
pursuant to the Securities Act of 1933, as amended (the "SECURITIES ACT"), or
the Exchange Act (the "NORTHERN REPORTS"), and no such registration statement,
offer circular, prospectus, report, schedule or proxy statement contained any
untrue statement of a material fact or omitted to state any material fact
required to be stated therein or necessary in order to make the statements
therein, in light of the circumstances in which they were made, not misleading.
Northern has timely filed all Northern Reports and other documents required to
be filed by them under the Securities Act and the Exchange Act, and, as of their
respective dates, all Northern Reports complied in all material respects with
the published rules and regulations of the FDIC with respect thereto.

    4.13  COMPLIANCE WITH APPLICABLE LAW.  Except as disclosed in Section 4.13
of the Northern Disclosure Schedule, Northern holds, and has at all times held,
all licenses, franchises, permits and authorizations necessary for the lawful
conduct of its business under and pursuant to all, and has complied with and is
not in violation in any material respect under any, applicable law, statute,
order, rule, regulation, policy and/or guideline of any Governmental Entity
relating to Northern, except where the failure to hold such license, franchise,
permit or authorization or such noncompliance or violation would not,
individually or in the aggregate, have or reasonably be expected to have a
Material Adverse Effect on Northern, and Northern does not know of, and has not
received notice of, any violations of any of the above which, individually or in
the aggregate, would have or would reasonably be expected to have a Material
Adverse Effect on Northern.

    4.14  CERTAIN CONTRACTS.

        (a) Except as publicly disclosed in the Northern Reports filed prior to
    the date hereof or as set forth in Section 4.14(a) of the Northern
    Disclosure Schedule, Northern is not a party to or bound by any contract,
    arrangement, commitment or understanding (whether written or oral)
    (i) which is a material contract (as defined in Item 601(b)(10) of
    Regulation S-K of the SEC) to be performed after the date of this Agreement,
    (ii) which limits the freedom of Northern to compete in any line of
    business, in any geographic area or with any person, or (iii) with or to a
    labor union or guild (including any collective bargaining agreement). Each
    contract, arrangement, commitment or understanding of the type described in
    this Section 4.14(a), whether or not publicly disclosed in the Northern
    Reports filed prior to the date hereof or set forth in Section 4.14(a) of
    the Northern Disclosure Schedule, is referred to herein as a "NORTHERN
    CONTRACT," and Northern does not know of, and has not received notice of,
    any violation of the above by any of the other parties thereto which,
    individually or in the aggregate, would have or would reasonably be

                                      C-18
<PAGE>
    expected to have a Material Adverse Effect on Northern. Northern has made
    available all contracts which involved payments by Northern in fiscal year
    1998 of more than $100,000 or which could reasonably be expected to involve
    payments during fiscal year 1999 of more than $100,000.

        (b) Except as set forth in Section 4.14(b) of the Northern Disclosure
    Schedule, each Northern Contract is valid and binding and in full force and
    effect, (ii) Northern has in all material respects performed all obligations
    required to be performed by it to date under each Northern Contract, and
    (iii) no event or condition exists which constitutes or, after notice or
    lapse of time or both, would constitute a material default on the part of
    Northern under any such Northern Contract, except, in each case, where such
    invalidity, failure to be binding, failure to so perform or default,
    individually or in the aggregate, would not have or reasonably be expected
    to have a Material Adverse Effect on Northern.

    4.15  AGREEMENTS WITH REGULATORY AGENCIES.  Except as set forth in
Section 4.15 of the Northern Disclosure Schedule, Northern is not subject to any
cease-and-desist or other order issued by, or is a party to any written
agreement, consent agreement or memorandum of understanding with, or is a party
to any commitment letter or similar undertaking to, or is subject to any order
or directive by, or has adopted any board resolutions at the request of (each,
whether or not set forth in Section 4.15 of the Northern Disclosure Schedule, a
"REGULATORY AGREEMENT"), any Governmental Entity that restricts the conduct of
its business or that in any manner relates to its capital adequacy, its credit
policies, its management or its business, nor has Northern been advised by any
Governmental Entity that it is considering issuing or requesting any Regulatory
Agreement.

    4.16  UNDISCLOSED LIABILITIES.  Except (i) for those liabilities that are
fully reflected or reserved against on the balance sheet of Northern included in
the Northern Form 10-KSB for the year ended December 31, 1998, (ii) for
liabilities incurred in the ordinary course of business consistent with past
practice since December 31, 1998, or (iii) for those liabilities set forth in
Section 4.16 of the Northern Disclosure Schedule, Northern has not incurred any
liability of any nature whatsoever (whether absolute, accrued or contingent or
otherwise and whether due or to become due) that, either alone or when combined
with all the liabilities not described in clause (i), (ii) or (iii), has had, or
would be reasonably expected to have, a Material Adverse Effect on Northern.

    4.17  ANTI-TAKEOVER PROVISIONS.  The Board of Directors of Northern has
taken all necessary action so that any applicable provisions of the takeover
laws of any state do not and will not apply to this Agreement, the Merger or the
transactions contemplated hereby, the Stock Option Agreement or the exercise of
the Option, including without limitation, the adoption by the Board of Directors
of Northern of resolutions specifically approving this Agreement, the Merger and
the transactions contemplated hereby, the Stock Option Agreement and the
exercise of the Option.

    4.18  NORTHERN INFORMATION.  The information relating to Northern and its
Subsidiaries to be provided by Northern for inclusion in the Proxy
Statement/Prospectus and the S-4, or in any other document filed with any other
Governmental Entity in connection herewith, will not contain any untrue
statement of a material fact or omit to state a material fact necessary to make
the statements therein, in light of the circumstances in which they are made,
not misleading. The Proxy Statement/Prospectus (except for such portions thereof
as relate only to Cowlitz or any of its Subsidiaries) will comply as to form in
all material respects with the provisions of the Exchange Act and the rules and
regulations thereunder.

    4.19  TITLE TO PROPERTY.

        (a) REAL PROPERTY. Section 4.19(a) of the Northern Disclosure Schedule
    contains a description of all interests in real property (other than real
    property security interests received in the ordinary course of business or
    real property acquired through foreclosure or deed in lieu thereof or other
    realization proceedings ("REO")), whether owned, leased or otherwise
    claimed, including a list of

                                      C-19
<PAGE>
    all leases of real property, in which Northern thereof has or claims in
    interest as of the date of this Agreement and any guarantees of any such
    leases by any of such parties. True and complete copies of such leases have
    previously been delivered or made available to Cowlitz, together with all
    amendments, modifications, agreements or other writings related thereto
    which are in the possession of Northern. Except as disclosed on
    Section 4.19(a) of the Northern Disclosure Schedule, to the best knowledge
    of Northern, each such lease is valid and binding as between Northern and
    the other party or parties thereto, and the occupant is a tenant or
    possessor in good standing thereunder, free of any default or breach
    whatsoever (except as otherwise disclosed on Section 4.19(a) of the Northern
    Disclosure Schedule) and quietly enjoys the premises provided for therein.
    Except as disclosed on Section 4.19(a) of the Northern Disclosure Schedule,
    Northern has owner's policies of title insurance insuring it to be the owner
    of all real property owned by it on the date of this Agreement, free and
    clear of all Liens, except Liens for current taxes not yet due and payable
    and other standard exceptions commonly found in title policies in the
    jurisdiction where such real property is located, and such encumbrances and
    imperfections of title, if any, as do not materially detract from the value
    of the properties and do not materially interfere with the present or
    proposed use of such properties or otherwise materially impair such
    operations. All real property and fixtures material to the business,
    operations of financial condition of Northern are in substantially good
    condition and repair.

        (b) PERSONAL PROPERTY. Northern has good, valid and marketable title to
    all tangible personal property owned by it on the date hereof, free and
    clear of all Liens, except as publicly disclosed in the Northern Reports
    filed prior to the date hereof or as disclosed on Section 4.19(b) of the
    Northern Disclosure Schedule. With respect to personal property used in the
    business of Northern which is leased rather than owned, Northern is not in
    default under the terms of any such lease the loss of which would have a
    Material Adverse Effect on Northern.

    4.20  INSURANCE.  Section 4.20 of the Northern Disclosure Schedule contains
a true and complete list and a brief description (including name of insurer,
agent, coverage, premium and expiration date) of all insurance policies in force
on the date hereof with respect to the business and assets of the Northern
(other than insurance policies under which Northern thereof is named as a loss
payee, insured or additional insured as a result of its position as a secured
lender on specific Loans and mortgage insurance policies on specific Loans).
Northern is in compliance with all of the material provisions of their insurance
policies and are not in default under any of the material terms thereof. Each
such policy is outstanding and in full force and effect and, except as set forth
on Section 4.20 of the Northern Disclosure Schedule, Northern is the sole
beneficiary of such policies. All premiums and other payments due under any such
policy have been paid.

    4.21  ENVIRONMENTAL LIABILITY.  Except as set forth in Section 4.21 of the
Northern Disclosure Schedule, there are no legal, administrative, arbitral or
other proceedings, claims, actions, causes of action, private environmental
investigations or remediation activities or governmental investigations of any
nature seeking to impose, or that reasonably could be expected to result in the
imposition of, on Northern any liability or obligation arising under common law
standards relating to environmental protection, human health or safety, or
arising under any local, state or federal environmental statute, regulation or
ordinance, including, without limitation, the Comprehensive Environmental
Response, Compensation and Liability Act of 1980, as amended (collectively, the
"ENVIRONMENTAL LAWS"), pending or, to the knowledge of Northern, threatened
against Northern, which liability or obligation would have or would reasonably
be expected to have a Material Adverse Effect on Northern. To the knowledge of
Northern, there is no reasonable basis for any such proceeding, claim, action or
governmental investigation that would impose any liability or obligation that
would have or would reasonably be expected to have a Material Adverse Effect on
Northern. To the knowledge of Northern, during or prior to the period of
(i) its ownership or operation of any of their respective current properties,
(ii) its participation in the management of any property, or (iii) its holding
of a security interest or other

                                      C-20
<PAGE>
interest in any property, there were no releases or threatened releases of
hazardous, toxic, radioactive or dangerous materials or other materials
regulated under Environmental Laws in, on, under or affecting any such property
which would reasonably be expected to have a Material Adverse Effect on
Northern. Northern is not subject to any agreement, order, judgment, decree,
letter or memorandum by or with any court, governmental authority, regulatory
agency or third party imposing any material liability or obligation pursuant to
or under any Environmental Law that would have or would reasonably be expected
to have a Material Adverse Effect on Northern.

    4.22  OPINION OF FINANCIAL ADVISOR.  Northern has received the opinion of
D.A. Davidson & Co., dated September 10, 1999, to the effect that, as of such
date, the Merger Consideration is fair from a financial point of view to the
holders of Northern Common Stock. A true and complete copy of such opinion has
been delivered to Cowlitz on or prior to the date of this Agreement.

    4.23  PATENTS, TRADEMARKS, ETC.  Northern owns or possesses all legal rights
to use all proprietary rights, including without limitation all trademarks,
trade names, service marks and copyrights, that are material to the conduct of
its existing business. Except for the agreements listed on Section 4.23 of the
Northern Disclosure Schedule, Northern is not bound by or a party to any
options, licenses or agreements of any kind with respect to any trademarks,
service marks or trade names which it claims to own. Northern has not received
any communications alleging that it has violated or would violate any of the
patents, trademarks, service marks, trade names, copyrights or trade secrets or
other proprietary rights of any other person or entity.

    4.24  LOAN MATTERS.

        (a) All evidences of indebtedness ("LOANS") reflected as assets on the
    books and records of Northern were, as of June 30, 1999 and will be as of
    the Closing Date, in all respects legal, valid and binding obligations of
    the respective obligors named therein and no such indebtedness is subject to
    any defenses which have been or may be asserted, except for defenses arising
    from applicable bankruptcy, insolvency, moratorium or other similar laws
    relating to creditors' rights generally and general principles of equity.

        (b) Except as disclosed in Section 4.24(b) of the Northern Disclosure
    Schedule, each Loan outstanding at any time since January 1, 1996 and each
    commitment to extend credit has been solicited and originated and is
    administered and serviced in all material respects in accordance with the
    relevant loan documents, Northern's underwriting standards and in material
    compliance with all applicable requirements of federal, state and local
    laws, regulations and rules.

        (c) Except as disclosed in Section 4.24(c) of the Northern Disclosure
    Schedule, no loan, all or any part of which is an asset of Northern was, as
    of June 30, 1999, more than 30 days delinquent as to principal or interest.

        (d) Except as disclosed in Section 4.24(d) of the Northern Disclosure
    Schedule, to the knowledge of Northern, the documentation for each loan (the
    "LOAN FILE") is correct and complete to the extent that all Loan Files
    contain those documents necessary for Northern to enforce the loans and
    realize upon the security, if any, therefor, including but not limited to
    properly executed notes or credit agreements and security documents. In
    addition, Except as disclosed in Section 4.24(d) of the Northern Disclosure
    Schedule, the Loan Files for all loans secured primarily by real property
    also contain evidence of property casualty insurance (or are covered by a
    mortgage protection policy) and, where required by the FDIC or other
    governmental regulators, appraisals, policies of title insurance (or, in the
    case of loans closed within the past three months, commitments therefor) and
    policies of flood insurance.

        (e) Except as disclosed on Section 4.24(e) of the Northern Disclosure
    Schedule, none of the loans Northern has sold or in which Northern has sold
    participation interests has any buy-back or guarantee obligations. The
    percentage of interest retained by Northern in any sold participation
    interest is not subordinated to the percentage of interest sold.

                                      C-21
<PAGE>
        (f) There are no employee, officer, director or other affiliate loans on
    which the borrower is paying a rate other than that reflected on the note or
    the relevant credit agreement.

        (g) With respect to loans secured by commercial real estate, Northern
    has a Phase I environmental study in its files in those instances where
    prudent lending practice would require a lender to have such a study, and
    each such Phase I environmental study shows the property to be free of any
    underground storage tanks, asbestos, ureaformaldehyde, uncontained
    polychlorinated biphenyls, or releases of hazardous substances as such terms
    are defined by any applicable federal, state or local environmental
    protection laws and regulations, or if such Phase I environmental study
    shows the property to contain any underground storage tanks, asbestos,
    ureaformaldehyde, uncontained polychlorinated biphenyls, or releases of
    hazardous substances, then such Phase I environmental study affirmatively
    recommends that no Phase II environmental study or further investigation is
    necessary.

        (h) To Northern's knowledge, there are no loans outstanding to
    individuals who are not residents of the United States except for loans
    secured by collateral located in the United States with a current fair
    market value equal to 100 percent of the loan amount. There are no loans
    outstanding to corporations or other entities headquartered outside of the
    United States except for loans that are either (a) guaranteed by individuals
    who are residents of the United States, or (b) secured by collateral located
    in the United Sates with a current fair market value equal to 100 percent of
    the loan amount. To Northern's knowledge, there are no commitments
    outstanding to nonresident individuals or entities to make loans or advances
    which, when made, would not be in compliance with the preceding two
    sentences.

    4.25  POWERS OF ATTORNEY.  Northern has no powers of attorney outstanding
other than those issued pursuant to the requirements of regulatory authority or
in the ordinary course of business with respect to routine matters.

    4.26  BENEFIT PLANS INVESTED IN COMMON STOCK.  No shares of Northern Common
Stock are available to individuals, directly or indirectly, through any Benefit
Plan, and no Benefit Plan is invested in Northern Common Stock.

    4.27  COMMUNITY REINVESTMENT ACT COMPLIANCE.  Northern is in substantial
compliance with the applicable provisions of the Community Reinvestment Act of
1977 and the regulations promulgated thereunder (collectively, "CRA"). Northern
has not been advised of the existence of any fact or circumstance or set of
facts or circumstances which, if true, would cause Northern to fail to be in
substantial compliance with such provisions or to have its current rating
lowered. Any change in the current rating which would prohibit the Merger from
being consummated shall be a Material Adverse Effect on Northern.

    4.28  YEAR 2000 COMPLIANCE.  Northern has completed an assessment of
Northern's computerized application programs, files, databases and computer and
computer communication services (collectively, the "NORTHERN AUTOMATED
SYSTEMS"), and has implemented a plan to resolve issues arising or expected to
arise in connection with the deficient processing by the Northern Automated
Systems of date-related information containing dates on, during and after
January 1, 2000 (each such deficiency, a "YEAR 2000 PROBLEM"). Northern's Year
2000 plan (the "NORTHERN Y2K PLAN") consists of assessing, testing for, and
implementing all steps necessary to preclude material Year 2000 Problems. As of
the date of this Agreement, Northern has substantially completed the necessary
assessment and testing processes and is conducting follow-up activities as a
result of Year 2000 Problems identified as of such date. Northern has no reason
to believe that any Year 2000 Problem, individually or in the aggregate, would
have or would reasonably be expected to have a Material Adverse Effect on
Northern.

    4.29  LABOR MATTERS.  Northern is not a party to and is not bound by any
collective bargaining agreement, contract or other agreement or understanding
with a labor union or labor organization, nor

                                      C-22
<PAGE>
is Northern the subject of a proceeding asserting that it has committed an
unfair labor practice (within the meaning of the National Labor Relations Act)
or seeking to compel Northern to bargain with any labor organization as to wages
or conditions of employment, nor is there any strike or other material labor
dispute or disputes involving it pending, or to Northern's knowledge,
threatened, nor is Northern aware of any activity involving its employees
seeking to certify a collective bargaining unit or engaging in other
organizational activity.

5.  REPRESENTATIONS AND WARRANTIES OF COWLITZ

    Cowlitz hereby represents and warrants to Northern as follows:

    5.1  CORPORATE ORGANIZATION.

        (a) Cowlitz is a corporation duly organized and validly existing under
    the laws of the State of Washington. Cowlitz has the corporate power and
    authority to own or lease all of its properties and assets and to carry on
    its business as it is now being conducted, and is duly licensed or qualified
    to do business in each jurisdiction in which the nature of the business
    conducted by it or the character or location of the properties and assets
    owned or leased by it makes such licensing or qualification necessary,
    except where the failure to be so licensed or qualified would not have or
    reasonably be expected to have a Material Adverse Effect (as defined below)
    on Cowlitz. As used in this Agreement, the term "MATERIAL ADVERSE EFFECT"
    means, with respect to Cowlitz, a material adverse effect on the business,
    results of operations, financial condition or prospects of Cowlitz and its
    Subsidiaries taken as a whole or a material adverse effect on Cowlitz's
    ability to consummate the transactions contemplated hereby on a timely
    basis; PROVIDED, HOWEVER, that a Material Adverse Effect on Cowlitz shall
    not be deemed to have occurred as a result of (i) any changes in laws,
    regulations or GAAP or (ii) any changes in general economic conditions
    affecting banks, savings associations or their holding companies generally.
    Cowlitz is duly registered as a bank holding company under the Bank Holding
    Company Act of 1956, as amended. The copies of the Articles of Incorporation
    and Bylaws of Cowlitz which have previously been made available to Northern
    are true, complete and correct copies of such documents as in effect as of
    the date of this Agreement. Cowlitz's only Subsidiaries are Cowlitz Bank and
    Business Finance Corporation.

        (b) Cowlitz Bank is a bank duly chartered and validly existing under the
    laws of the State of Washington. All of the issued and outstanding capital
    stock of Cowlitz Bank is owned free and clear of all liens by Cowlitz.
    Deposits in Cowlitz Bank are insured by the FDIC through the BIF to the
    fullest extent permitted by law. Cowlitz Bank has no Subsidiaries.

    5.2  CAPITALIZATION.  The authorized capital stock of Cowlitz consists of
25,000,000 shares of Cowlitz Common Stock and 5,000,000 shares of preferred
stock, no par value ("COWLITZ PREFERRED STOCK"). At the close of business on
July 30, 1999, there were 4,154,070 shares of Cowlitz Common Stock outstanding
and no shares of Cowlitz Preferred Stock outstanding. As of August 1, 1999,
783,829 shares of Cowlitz Common Stock or Cowlitz Preferred Stock were reserved
for issuance. All of the issued and outstanding shares of Cowlitz Common Stock
have been duly authorized and validly issued and are fully paid, nonassessable
and free of preemptive rights, with no personal liability attaching to the
ownership thereof. As of the date of this Agreement, except (i) as set forth in
Section 5.2(a) of the disclosure schedule of Cowlitz delivered to Northern
concurrently herewith (the "COWLITZ DISCLOSURE SCHEDULE"), and (ii) as set forth
elsewhere in this Section 5.2(a), Cowlitz does not have and is not bound by any
outstanding subscriptions, options, warrants, calls, commitments or agreements
of any character calling for the purchase or issuance of any shares of Cowlitz
Common Stock or Cowlitz Preferred Stock or any other equity securities of
Cowlitz or any securities representing the right to purchase or otherwise
receive any shares of Cowlitz Common Stock or Cowlitz Preferred Stock. The
shares of Cowlitz Common Stock to be issued pursuant to the Merger will be duly
authorized and

                                      C-23
<PAGE>
validly issued and, at the Effective Time, all such shares will be fully paid,
nonassessable and free of preemptive rights, with no personal liability
attaching to the ownership thereof.

    5.3  AUTHORITY; NO VIOLATION.

        (a) Cowlitz has full corporate power and authority to execute and
    deliver this Agreement and the Stock Option Agreement and to consummate the
    transactions contemplated hereby and thereby. The execution and delivery of
    this Agreement and the Stock Option Agreement and the consummation of the
    transactions contemplated hereby (including the issuance of the Cowlitz
    Common Stock constituting Merger Consideration) and thereby have been duly
    and validly approved by the Board of Directors of Cowlitz. The Board of
    Directors of Cowlitz will direct that the issuance of shares of Cowlitz
    Common Stock in the Merger be submitted to Cowlitz's stockholders for
    approval at a meeting of such stockholders and, except for the approval of
    such issuance by the affirmative vote of a majority of the votes cast at
    such a meeting, no other corporate proceedings on the part of Cowlitz are
    necessary to approve this Agreement or the Stock Option Agreement or to
    consummate the transactions contemplated hereby and thereby. This Agreement
    and the Stock Option Agreement have been duly and validly executed and
    delivered by Cowlitz and (assuming due authorization, execution and delivery
    by Northern) each constitutes a valid and binding obligation of Cowlitz,
    enforceable against Cowlitz in accordance with its terms, except as
    enforcement may be limited by general principles of equity whether applied
    in a court of law or a court of equity and by bankruptcy, insolvency and
    similar laws affecting creditors' rights and remedies generally.

        (b) Cowlitz Bank has full corporate power and authority to execute and
    deliver this Agreement and to consummate the transactions contemplated
    hereby. The execution and delivery of this Agreement and the consummation of
    the transactions contemplated hereby has been duly and validly approved by
    the Board of Directors of Cowlitz Bank and will be duly and validly approved
    by the sole stockholder of Cowlitz Bank, and, upon such approval, no other
    corporate proceeding on the part of Cowlitz Bank will be necessary to
    consummate the transactions contemplated hereby. This Agreement has been
    duly and validly executed and delivered by the Cowlitz Bank and (assuming
    due authorization, execution and delivery by Northern) constitutes a valid
    and binding obligation of Cowlitz Bank, enforceable against Cowlitz Bank in
    accordance with its terms, except as enforcement may be limited by general
    principles of equity whether applied in a court of law or a court of equity
    and by bankruptcy, insolvency, fraudulent transfer, receivership,
    conservatorship and similar laws affecting creditors' rights and remedies
    generally.

        (c) Except as set forth in Section 5.3(c) of the Cowlitz Disclosure
    Schedule, neither the execution and delivery of this Agreement or the Stock
    Option Agreement by Cowlitz or Cowlitz Bank, nor the consummation by Cowlitz
    or Cowlitz Bank of the transactions contemplated hereby or thereby, nor
    compliance by Cowlitz or Cowlitz Bank with any of the terms or provisions
    hereof or thereof, will (i) violate any provision of the Articles of
    Incorporation or Bylaws of Cowlitz or any of the similar governing documents
    of any of its Subsidiaries or (ii) assuming that the consents and approvals
    referred to in Section 5.4 are duly obtained, (x) violate any statute, code,
    ordinance, rule, regulation, judgment, order, writ, decree or injunction
    applicable to Cowlitz or any of its Subsidiaries or any of their respective
    properties or assets, or (y) violate, conflict with, result in a breach of
    any provision of or the loss of any benefit under, constitute a default (or
    an event which, with notice or lapse of time or both, would constitute a
    default) under, result in the termination of or a right of termination or
    cancellation under, accelerate the performance required by, or result in the
    creation of any Lien upon any of the respective properties or assets of
    Cowlitz or any of its Subsidiaries under, any of the terms, conditions or
    provisions of any note, bond, mortgage, indenture, deed of trust, license,
    lease, agreement or other instrument or obligation to which Cowlitz or any
    of its Subsidiaries is a party, or by which they or any of their respective
    properties or assets may be bound or affected, except (in the case of
    clause (y) above) for such violations,

                                      C-24
<PAGE>
    conflicts, breaches or defaults which either individually or in the
    aggregate will not have and would not reasonably be expected to have a
    Material Adverse Effect on Cowlitz.

    5.4  CONSENTS AND APPROVALS.  Except for (i) the approval of this Agreement
and the Merger by the FDIC, the Washington Director and the Oregon Director,
(ii) approval of the listing of the Cowlitz Common Stock to be issued in the
Merger on Nasdaq, (iii) the filing with the FDIC and the SEC of the Proxy
Statement/Prospectus and the filing and declaration of effectiveness of the S-4,
(iv) the filing of the Articles of Merger with the Washington Secretary, the
Washington Director and the Oregon Director, (v) the approval of this Agreement
and the Merger by the requisite votes of the stockholders of Northern, the
approval of the issuance of shares of Cowlitz Common Stock in the Merger by
stockholders of Cowlitz and the approval of this Agreement and the Merger by the
sole stockholder of Cowlitz Bank, (vi) the consents and approvals set forth in
Section 5.4 of the Cowlitz Disclosure Schedule, and (vii) the consents and
approvals of third parties which are not Governmental Entities, the failure of
which to obtain will not have and would not be reasonably expected to have,
individually or in the aggregate, a Material Adverse Effect, no consents or
approvals of, or filings or registrations with, any Governmental Entity or any
third party are necessary in connection with (A) the execution and delivery by
Cowlitz of this Agreement and (B) the consummation by Cowlitz of the Merger and
the other transactions contemplated hereby.

    5.5  REPORTS.  Cowlitz and each of its Subsidiaries have timely filed all
material reports, registrations and statements, together with any amendments
required to be made with respect thereto, that they were required to file since
January 1, 1997 with any Governmental Entities, and have paid all fees and
assessments due and payable in connection therewith. Except as set forth in
Section 5.5 of the Cowlitz Disclosure Schedule and except for normal
examinations conducted by a Governmental Entity in the regular course of the
business of Cowlitz and its Subsidiaries, no Governmental Entity has initiated
any proceeding or, to the best knowledge of Cowlitz, investigation into the
business or operations of Cowlitz or any of its Subsidiaries since January 1,
1997. There is no material unresolved violation, criticism, or exception by any
Government Entity with respect to any report or statement relating to any
examinations of Cowlitz or any of its Subsidiaries.

    5.6  FINANCIAL STATEMENTS.  Cowlitz has previously made available to
Northern copies of (a) the consolidated balance sheets of Cowlitz and its
Subsidiaries, as of December 31, for the fiscal years 1997 and 1998, and the
related consolidated statements of income, changes in stockholders' equity and
cash flows for the fiscal years 1996 through 1998, inclusive, as reported in
Cowlitz's Annual Report on Form 10-K for the fiscal year ended December 31, 1998
filed with the SEC under the Exchange Act, in each case accompanied by the audit
report of Arthur Andersen LLP, independent public accountants with respect to
Cowlitz, and (b) the unaudited consolidated balance sheets of Cowlitz and its
Subsidiaries as of June 30, 1998 and June 30, 1999 and the related unaudited
consolidated statements of income, cash flows and changes in stockholders'
equity for the three-month periods then ended, as reported in Cowlitz's
Quarterly Report on Form 10-Q for the period ended June 30, 1999 filed with the
SEC under the Exchange Act. Each of the financial statements referred to in this
Section 5.6 (including the related notes, where applicable) fairly present, and
the financial statements referred to in Section 7.11 hereof (including the
related notes, where applicable) will fairly present (subject, in the case of
the unaudited statements, to normal recurring adjustments, none of which are
expected to be material in nature and amount), the results of the consolidated
operations and changes in stockholders' equity and consolidated financial
position of Cowlitz and its Subsidiaries for the respective fiscal periods or as
of the respective dates therein set forth. Each of such financial statements
(including the related notes, where applicable) complies, and the financial
statements referred to in Section 7.11 hereof (including the related notes,
where applicable) will comply, in all material respects with applicable
accounting requirements and with the published rules and regulations of the SEC
with respect thereto; and each of such financial statements (including the
related notes, where applicable) has been, and the financial statements referred
to in Section 7.11 (including the related notes, where

                                      C-25
<PAGE>
applicable) will be, prepared in accordance with GAAP consistently applied
during the periods involved, except in each case as indicated in such statements
or in the notes thereto or, in the case of unaudited statements, as permitted by
Form 10-Q. The books and records of Cowlitz and its Subsidiaries have been, and
are being, maintained in all material respects in accordance with GAAP and any
other applicable legal and accounting requirements and reflect only actual
transactions.

    5.7  BROKER'S FEES.  Except as set forth in Section 5.7 of the Cowlitz
Disclosure Schedule, neither Cowlitz nor any Subsidiary thereof nor any of their
respective officers or directors has employed any broker or finder or incurred
any liability for any broker's fees, commissions or finder's fees in connection
with any of the transactions contemplated by this Agreement.

    5.8  ABSENCE OF CERTAIN CHANGES OR EVENTS.  Except as publicly disclosed in
Cowlitz Reports (as defined in Section 5.10) filed prior to the date hereof or
as set forth in Section 5.8 of the Cowlitz Disclosure Schedule, since June 30,
1999, no event has occurred which has had or would reasonably be expected to
have, individually or in the aggregate, a Material Adverse Effect on Cowlitz.

    5.9  LEGAL PROCEEDINGS.

        (a) Neither Cowlitz nor any of its Subsidiaries is a party to any, and
    there are no pending or, to the best of Cowlitz's knowledge, threatened
    legal, administrative, arbitral or other proceedings, claims, actions or
    governmental or regulatory investigations of any nature against Cowlitz or
    any of its Subsidiaries or challenging the validity or propriety of the
    transactions contemplated by this Agreement as to which there is a
    significant possibility of an adverse determination and which, if adversely
    determined, would, individually or in the aggregate, have or reasonably be
    expected to have a Material Adverse Effect on Cowlitz.

        (b) There is no injunction, order, judgment, decree, or regulatory
    restriction imposed upon Cowlitz, any of its Subsidiaries or the assets of
    Cowlitz or any of its Subsidiaries which has had, or would reasonably be
    expected to have, a Material Adverse Effect on Cowlitz or the Surviving
    Bank.

    5.10  SEC REPORTS.  Cowlitz has previously made available to Northern an
accurate and complete copy of each final registration statement, prospectus,
report, schedule and definitive proxy statement filed since January 1, 1998 and
prior to the date hereof by Cowlitz with the SEC pursuant to the Securities Act
or the Exchange Act (the "COWLITZ REPORTS"), and no such registration statement,
prospectus, report, schedule or proxy statement contained any untrue statement
of a material fact or omitted to state any material fact required to be stated
therein or necessary in order to make the statements therein, in light of the
circumstances in which they were made, not misleading. Cowlitz has timely filed
all Cowlitz Reports and other documents required to be filed by it under the
Securities Act and the Exchange Act, and, as of their respective dates, all
Cowlitz Reports complied in all material respects with the published rules and
regulations of the SEC with respect thereto.

    5.11  COMPLIANCE WITH APPLICABLE LAW.  Except as disclosed in Section 5.11
of the Cowlitz Disclosure Schedule, Cowlitz and each of its Subsidiaries hold,
and have at all times held, all material licenses, franchises, permits and
authorizations necessary for the lawful conduct of their respective businesses
under and pursuant to all, and have complied with and are not in default in any
material respect under any, applicable law, statute, order, rule, regulation,
policy and/or guideline of any Governmental Entity relating to Cowlitz or any of
its Subsidiaries, except where the failure to hold such license, franchise,
permit or authorization or such noncompliance or default would not, individually
or in the aggregate, have or reasonably be expected to have a Material Adverse
Effect on Cowlitz, and neither Cowlitz nor any of its Subsidiaries knows of, or
has received notice of, any material violations of any of the above which,
individually or in the aggregate, would have or reasonably be expected to have a
Material Adverse Effect on Cowlitz.

                                      C-26
<PAGE>
    5.12  AGREEMENTS WITH REGULATORY AGENCIES.  Except as set forth in
Section 5.12 of the Cowlitz Disclosure Schedule, neither Cowlitz nor any of its
Subsidiaries is subject to any Regulatory Agreement that restricts the conduct
of its business or that in any manner relates to its capital adequacy, its
credit policies, its management or its business, nor has Cowlitz or any of its
Subsidiaries been advised by any Governmental Entity that it is considering
issuing or requesting any Regulatory Agreement.

    5.13  COWLITZ INFORMATION.  The information relating to Cowlitz and its
Subsidiaries to be provided by Cowlitz to be contained in the Proxy
Statement/Prospectus and the S-4, or in any other document filed with any other
Governmental Entity in connection herewith, will not contain any untrue
statement of a material fact or omit to state a material fact necessary to make
the statements therein, in light of the circumstances in which they are made,
not misleading. The Proxy Statement/Prospectus (except for such portions thereof
that relate only to Northern) will comply as to form in all material respects
with the provisions of the Exchange Act and the rules and regulations
thereunder. The S-4 will comply as to form in all material respects with the
provisions of the Securities Act and the rules and regulations thereunder.

    5.14  YEAR 2000 COMPLIANCE.  Cowlitz has completed an assessment of
Cowlitz's computerized application programs, files, databases and computer and
computer communication services, and has implemented a plan (the "COWLITZ Y2K
PLAN") to resolve issues arising or expected to arise in connection with any
Year 2000 Problems. The Cowlitz Y2K Plan consists of assessing, renovating,
validating and implementing all steps necessary to preclude material Year 2000
Problems. As of the date of this Agreement, Cowlitz has completed the
assessment, renovation and validation phases and is currently in the
implementation phase of the Cowlitz Y2K Plan. Cowlitz has no reason to believe
that any Year 2000 Problem, individually or in the aggregate, would have or
would reasonably be expected to have a Material Adverse Effect on Cowlitz.

    5.15  OPINION OF FINANCIAL ADVISOR.  Cowlitz has received the opinion of
Sage Capital LLC, dated September 14, 1999, to the effect that, as of such date,
the Merger Consideration is fair from a financial point of view to the holders
of Cowlitz Common Stock. A true and complete copy of such opinion has been
delivered to Northern on or prior to the date of this Agreement

6.  COVENANTS RELATING TO CONDUCT OF BUSINESS

    6.1  CONDUCT OF BUSINESSES PRIOR TO THE EFFECTIVE TIME.

        (a) Except as set forth in Section 6.1 or 6.2 of the Northern Disclosure
    Schedule, as expressly contemplated or permitted by this Agreement, or as
    required by applicable law, rule or regulation, during the period from the
    date of this Agreement to the Effective Time, Northern shall (i) conduct its
    business in the usual, regular and ordinary course consistent with past
    practice, (ii) use reasonable best efforts to maintain and preserve intact
    its business organization, employees and advantageous business relationships
    and retain the services of its officers and key employees and (iii) take no
    action which would reasonably be expected to adversely affect or delay its
    ability to obtain any approvals of any Governmental Entity required to
    consummate the transactions contemplated hereby or to consummate the
    transactions contemplated hereby.

        (b) Northern shall file (or cause to be filed) at its own expense, on or
    before the due date thereof, all Tax Returns required to be filed for all
    Tax periods ending on or before the Effective Time provided, however, that
    Northern shall not file any such Tax Return, or other returns, elections,
    claims for refund or information statements with respect to any liabilities
    for Taxes (other than federal, state or local sales, use, property,
    withholding or employment Tax Returns) for any Tax period until Cowlitz has
    had a reasonable opportunity to review such Tax Returns. Northern shall
    provide Cowlitz with a copy of appropriate workpapers, schedules, drafts and
    final copies of each federal and state income tax return of Northern
    (including returns of all Plans) at

                                      C-27
<PAGE>
    least ten (10) days before filing such Tax Return and shall reasonably
    cooperate with any request by Cowlitz in connection therewith.

        (c) Northern shall use its reasonable best efforts to sell all or part
    of its obligations under its accounts receivable financing program under the
    name of Business Manager prior to the Effective Time.

        (d) Northern hereby agrees to obtain Cowlitz's prior written approval
    with respect to those matters set forth in Sections 6.1 and 6.2 of the
    Northern Disclosure Schedule that expressly require Cowlitz's prior written
    approval

        (e) In the event that Northern's dispute with Fiserv Solutions, Inc.
    described in Section 4.9(a) of the Northern Disclosure Schedule has not been
    resolved prior to the Effective Time, Northern agrees to establish prior to
    the Effective Time a reasonable reserve for such dispute. In the event that
    Northern's dispute with Albina State Bank described in Section 4.9(a) of the
    Northern Disclosure Schedule has not been resolved prior to the Effective
    Time, Northern agrees to establish prior to the Effective Time a reasonable
    reserve for such dispute.

    6.2  NORTHERN FORBEARANCES.  Except as set forth in Section 6.2 of the
Northern Disclosure Schedule, as expressly contemplated or permitted by this
Agreement, or as required by applicable law, rule or regulation, during the
period from the date of this Agreement to the Effective Time, Northern shall not
without the prior written consent of Cowlitz:

        (a) adjust, split, combine or reclassify any capital stock; set any
    record or payment dates for the payment of any dividends or distributions on
    its capital stock except in the ordinary and usual course of business
    consistent with past practice; make, declare or pay any dividend or make any
    other distribution on, or directly or indirectly redeem, purchase or
    otherwise acquire, any shares of its capital stock or any securities or
    obligations convertible into or exchangeable for any shares of its capital
    stock, or except as otherwise permitted by this paragraph (a) grant any
    stock appreciation rights or grant any individual, corporation, joint
    venture or other entity any right to acquire any shares of its capital
    stock; or issue any additional shares of capital stock except pursuant to
    the exercise of stock options outstanding as of the date hereof;

        (b) incur any indebtedness for borrowed money, other than deposit
    liabilities and short-term borrowings pursuant to credit facilities in
    effect on the date of this Agreement or any replacement facilities with
    commercially reasonable terms as credit facilities existing as of the date
    hereof, or sell, transfer, mortgage, encumber or otherwise dispose of any of
    its assets or properties to any individual, corporation or other entity, or
    cancel, release or assign any indebtedness to any such person or any claims
    held by any such person, in each case that is material to such party, except
    (i) in the ordinary course of business consistent with past practice or
    (ii) as expressly required by the terms of any contracts or agreements in
    force at the date of this Agreement and set out in Section 6.2 of the
    Northern Disclosure Schedule;

        (c) form any Subsidiary, or make any acquisition or investment, whether
    by purchase or other acquisition of stock or other equity interests, by
    merger, consolidation or other business combination, or by contributions to
    capital, or make any property transfers or material purchases of any
    property or assets, in or from any other individual, corporation, joint
    venture or other entity;

        (d) enter into, renew or terminate any contract or agreement, other than
    loans made in the ordinary course of business, that calls for aggregate
    annual payments of $50,000 and which is not either (i) terminable at will on
    60 days or less notice without payment of a penalty in excess of $20,000 or
    (ii) has a term of less than one year; or make any material change in any of
    its leases or contracts, other than renewals of contracts or leases for a
    term of one year or less without material adverse changes to the terms
    thereof;

                                      C-28
<PAGE>
        (e) other than general salary increases consistent with past practices
    for employees other than executive officers, increase in any material
    respect the compensation or fringe benefits of any of its employees or pay
    any pension or retirement allowance not required by any existing plan or
    agreement to any such employees or become a party to, amend (other than
    amendments required by law) or commit itself to any pension, retirement,
    profit-sharing or welfare benefit plan or agreement or employment agreement
    with or for the benefit of any employee or accelerate the vesting of any
    stock options or other stock-based compensation;

        (f) authorize or permit any of its officers, directors, employees,
    representatives or agents (collectively, "REPRESENTATIVES") to directly or
    indirectly solicit, initiate or encourage any inquiries relating to or that
    may reasonably be expected to lead to, or the making of any proposal which
    constitutes, a Takeover Proposal (as defined below), or recommend or endorse
    any Takeover Proposal, or participate in any discussions or negotiations, or
    provide third parties with any nonpublic information, relating to any such
    Takeover Proposal or otherwise facilitate any effort or attempt to make or
    implement a Takeover Proposal; PROVIDED, HOWEVER, that, at any time prior to
    the time its stockholders shall have voted to approve this Agreement and the
    Merger, Northern may, and may authorize and permit its Representatives to,
    provide third parties with nonpublic information and participate in
    discussions and negotiations with any third party in response to a Takeover
    Proposal which was not solicited subsequent to the date hereof, if
    Northern's Board of Directors, based on the advice of its financial advisors
    and outside counsel, has determined in its reasonable good faith judgment
    that the failure to do so would constitute a breach of its fiduciary duties.
    Northern shall (i) advise Cowlitz orally (within one day) and in writing (as
    promptly as practicable) of the receipt after the date hereof of any
    Takeover Proposal by it or any of its Representatives and (ii) unless its
    Board of Directors, based on the advice of its financial advisors and
    outside counsel, has determined in its reasonable good faith judgment that
    such action would constitute a breach of its fiduciary duties, inform
    Cowlitz orally and in writing, as promptly as practicable after the receipt
    thereof, of the material terms and conditions of any such Takeover Proposal
    (including the identity of the party making such inquiry or proposal) and
    shall keep Cowlitz informed of the status (including any changes in the
    material terms and conditions) thereof. Northern shall not furnish any
    nonpublic information to any other party pursuant to this Section 6.2(f)
    except pursuant to the terms of a confidentiality agreement containing terms
    substantially identical to the terms contained in the Confidentiality
    Agreement (as defined in Section 7.2(b) hereof). Northern will immediately
    cease and cause to be terminated any activities, discussions or negotiations
    conducted prior to the date of this Agreement with any parties other than
    Cowlitz with respect to any Takeover Proposal and require the return (or if
    permitted by the terms of the applicable confidentiality agreement, the
    certified destruction) of all confidential information previously provided
    to such parties. As used in this Agreement, "TAKEOVER PROPOSAL" shall mean
    any inquiry, proposal or offer relating to any tender or exchange offer,
    proposal for a merger, consolidation or other business combination involving
    Northern or the acquisition in any manner of 25% or more of the voting stock
    or equity, or a substantial portion of the assets, of Northern, other than
    the transactions contemplated by this Agreement;

        (g) make any capital expenditures in excess of (A) $50,000 per project
    or related series of projects or (B) $50,000 in the aggregate, other than
    expenditures necessary to maintain existing assets in good repair;

        (h) except in the ordinary course of business, make application for the
    opening, relocation or closing of any, or open, relocate or close any,
    branch, office or loan production or servicing facility;

        (i) make or acquire any loan or issue a commitment for any loan except
    for loans and commitments that are made in the ordinary course of business
    consistent with past practice at rates not less than the prevailing market
    rates, or issue or agree to issue any letters of credit or

                                      C-29
<PAGE>
    otherwise guarantee or agree to guarantee the obligations of any other
    persons except for letters of credit issued in the ordinary course of
    business consistent with past practice;

        (j) except as otherwise expressly permitted elsewhere in this
    Section 6.2, engage or participate in any material transaction or incur or
    sustain any material obligation not in the ordinary course of business;

        (k) except as otherwise expressly permitted hereby, foreclose upon or
    otherwise acquire (whether by deed in lieu of foreclosure or otherwise) any
    real property (other than 1-to-4 family residential properties in the
    ordinary course of business);

        (l) settle any claim, action or proceeding involving monetary damages,
    except in the ordinary course of business consistent with past practice, or
    agree or consent to the issuance of any injunction, decree, order or
    judgment restricting its business or operations;

        (m) amend its charter, bylaws or similar governing documents;

        (n) except in the ordinary course of business consistent with past
    practice, materially change its investment securities portfolio policy, or
    the manner in which the portfolio is classified or reported;

        (o) except as expressly required to comply with the Consent to Entry of
    Order to Cease and Desist and Order to Cease and Desist between the FDIC and
    Northern dated July 19, 1999, and the Order to Cease and Desist between the
    Oregon Department of Financial Institutions and Northern dated July 19, 1999
    (collectively, the "ORDERS"), make any material changes in its policies and
    practices with respect to (i) underwriting, pricing, originating, acquiring,
    selling, servicing, or buying or selling rights to service loans,
    (ii) hedging its loan positions or commitments or (iii) any other material
    banking policies;

        (p) take any action that is intended or may reasonably be expected to
    result in any of its representations and warranties set forth in this
    Agreement being or becoming untrue in any material respect at any time prior
    to the Effective Time, or in any of the conditions to the Merger set forth
    in Section 8 not being satisfied or in a violation of any provision of this
    Agreement, except, in every case, as may be required by applicable law;

        (q) take any action (other than permitted herein) that would prevent the
    Merger from qualifying as a "reorganization" within the meaning of
    Section 368(a) of the Code, make any changes in its accounting methods,
    practices or policies, except as may be required under law, rule, regulation
    or GAAP, in each case as concurred in by Northern's independent public
    accountants;

        (r) except as expressly required to comply with the Orders, increase the
    number of full-time equivalent employees of Northern from the number as of
    June 30, 1999; or

        (s) except as expressly required to comply with the Orders, agree to, or
    make any commitment to, take any of the actions prohibited by this
    Section 6.2.

    6.3  NO FUNDAMENTAL COWLITZ CHANGES.  Except as expressly contemplated or
permitted by this Agreement, or as required by applicable law, rule or
regulation, during the period from the date of this Agreement to the Effective
Time, Cowlitz shall not, without the prior written consent of Northern, amend
its articles of incorporation or bylaws in a manner that would materially and
adversely affect the economic benefits of the Merger to the holders of Northern
Common Stock, or agree to, or make any commitment to, take any such action.

                                      C-30
<PAGE>
7.  ADDITIONAL AGREEMENTS

    7.1  REGULATORY MATTERS.

        (a) Cowlitz and Northern shall promptly prepare and file with the FDIC
    and SEC the Proxy Statement/Prospectus and the S-4, in which the Proxy
    Statement/Prospectus will be included as a prospectus. Each of Cowlitz and
    Northern shall use all reasonable efforts to have the S-4 declared effective
    under the Securities Act as promptly as practicable after such filing, and
    Northern and Cowlitz shall thereafter mail the Proxy Statement/Prospectus to
    their respective stockholders.

        (b) Subject to the other provisions of this Agreement, the parties
    hereto shall cooperate with each other and use reasonable best efforts to
    promptly prepare and file all necessary documentation, to effect all
    applications, notices, petitions and filings, to obtain as promptly as
    practicable all permits, consents, approvals and authorizations of all third
    parties and Governmental Entities which are necessary or advisable to
    consummate the transactions contemplated by this Agreement (including
    without limitation the Merger) and to comply with the terms and conditions
    of all such permits, consents, approvals and authorizations of all such
    third parties and Governmental Entities.

        (c) Cowlitz and Northern shall, upon request, furnish each other with
    all information concerning themselves, their respective Subsidiaries,
    directors, officers and stockholders and such other matters as may be
    reasonably necessary or advisable in connection with the Proxy Statement/
    Prospectus, the S-4 or any other statement, filing, notice or application
    made by or on behalf of Cowlitz, Northern or any of their respective
    Subsidiaries to any Governmental Entity in connection with the merger and
    the other transactions contemplated by this Agreement.

        (d) Cowlitz and Northern shall promptly advise each other upon receiving
    any communication from any Governmental Entity whose consent or approval is
    required for consummation of the transactions contemplated by this Agreement
    which causes such party to believe that there is a reasonable likelihood
    that any Requisite Regulatory Approval (as defined in Section 8.1(c) below)
    will not be obtained or that the receipt of any such approval will be
    materially delayed.

    7.2  ACCESS TO INFORMATION.

        (a) Upon reasonable notice and subject to applicable laws relating to
    the exchange of information, Northern shall afford access to the officers,
    employees, accountants, counsel and other Representatives of Cowlitz and any
    Loan Examiners appointed pursuant to Section 2.6(d), during normal business
    hours during the period prior to the Effective Time, to all its properties,
    books, contracts, commitments and records, and to its officers, employees,
    accountants, counsel and other representatives and, during such period,
    Northern shall make available to Cowlitz (i) a copy of each report,
    schedule, registration statement and other document filed or received by it
    during such period pursuant to the requirements of Federal securities laws
    or Federal or state banking, mortgage lending, real estate or consumer
    finance or protection laws (other than reports or documents which Northern
    is not permitted to disclose under applicable law) and (ii) all other
    information concerning its business, properties and personnel as such other
    party may reasonably request. Northern shall not be required to provide
    access to or to disclose information where such access or disclosure would
    violate or prejudice the rights of its customers, jeopardize the attorney-
    client privilege of the institution in possession or control of such
    information or contravene any law, rule, regulation, order, judgment,
    decree, fiduciary duty or binding agreement entered into prior to the date
    of this Agreement. The parties hereto will make appropriate substitute
    disclosure arrangements under circumstances in which the restrictions of the
    preceding sentence apply.

        (b) Cowlitz shall hold all information furnished by Northern or any of
    its Representatives pursuant to Section 7.2(a) in confidence to the extent
    required by, and in accordance with, the

                                      C-31
<PAGE>
    provisions of the Confidentiality Agreement dated May 13, 1999, between
    Cowlitz and Northern (the "CONFIDENTIALITY AGREEMENT").

        (c) No investigation by Cowlitz or its Representatives shall affect the
    representations, warranties, covenants or agreements of Northern set forth
    herein.

        (d) No investigation by Northern or its Representatives shall affect the
    representations, warranties, covenants or agreements of Cowlitz set forth
    herein.

    7.3  SHAREHOLDER APPROVAL.  Each of Northern and Cowlitz shall duly call,
give notice of, convene and hold a meeting of its stockholders to be held as
soon as practicable following the date hereof for the purpose of obtaining the
requisite stockholder approval required in connection with this Agreement and
the Merger. Northern shall, through its Board of Directors, recommend to its
stockholders approval of the Merger and Cowlitz shall, through its Board of
Directors, recommend to its stockholders approval of the issuance of the shares
of Cowlitz Common Stock in the Merger as required by Nasdaq; PROVIDED, HOWEVER,
that this Section 7.3 shall not prohibit accurate disclosure by Northern of
information that is required in the Proxy Statement/Prospectus or any other
document required to be filed with the SEC (including without limitation a
disclosure statement on Schedule 14D-9) or otherwise required by applicable law
or regulation or the rules of Nasdaq to be publicly disclosed.

    7.4  LEGAL CONDITIONS TO MERGER.

        (a) Subject to the terms and conditions of this Agreement, each of
    Cowlitz and Northern shall, and shall cause its Subsidiaries to, use their
    reasonable best efforts (i) to take, or cause to be taken, all actions
    necessary, proper or advisable to comply promptly with all legal
    requirements which may be imposed on such party or its Subsidiaries with
    respect to the Merger and, subject to the conditions set forth in Section 8
    hereof, to consummate the transactions contemplated by this Agreement and
    (ii) to obtain (and to cooperate with the other party to obtain) any
    consent, authorization, order or approval of, or any exemption by, any
    Governmental Entity and any other third party which is required to be
    obtained by Northern or Cowlitz or any of their respective Subsidiaries in
    connection with the Merger and the other transactions contemplated by this
    Agreement.

        (b) Subject to the terms and conditions of this Agreement, each of
    Cowlitz and Northern agrees to use reasonable best efforts to take, or cause
    to be taken, all actions, and to do, or cause to be done, all things
    necessary, proper or advisable to consummate and make effective, as soon as
    practicable after the date of this Agreement, the transactions contemplated
    hereby, including, without limitation, using reasonable best efforts to
    (i) modify or amend any contracts, plans or arrangements to which Cowlitz or
    Northern is a party (to the extent permitted by the terms thereof) if
    necessary in order to satisfy the conditions to closing set forth in
    Section 8 hereof, (ii) lift or rescind any injunction or restraining order
    or other order adversely affecting the ability of the parties to consummate
    the transactions contemplated hereby, and (iii) defend any litigation
    seeking to enjoin, prevent or delay the consummation of the transactions
    contemplated hereby or seeking material damages.

    7.5  AFFILIATES.  Northern shall use its reasonable best efforts to cause
each director, executive officer and other person who is an "affiliate" (for
purposes of Rule 145 under the Securities Act) of Northern to deliver to
Cowlitz, as soon as practicable after the date of this Agreement, and in any
event prior to the date of the stockholders meeting called by Northern pursuant
to Section 7.3 hereof, a written agreement, in the form and substance reasonably
satisfactory to Cowlitz, relating to required transfer restrictions on the
Cowlitz Common Stock received by them in the Merger.

                                      C-32
<PAGE>
    7.6  STOCK LISTING.  Cowlitz shall use its best efforts to cause the shares
of Cowlitz Common Stock to be issued in the Merger to be approved for listing on
Nasdaq, subject to official notice of issuance, prior to the Effective Time.

    7.7  EMPLOYEES; EMPLOYEE BENEFIT PLANS.

        (a) Cowlitz shall, from and after the Effective Time, (i) comply with
    the Plans in accordance with their terms, (ii) provide former employees of
    Northern who remain as employees of Cowlitz or its Subsidiaries credit for
    years of service with Northern prior to the Effective Time for the purpose
    of eligibility and vesting and (iii) cause any and all pre-existing
    condition limitations (to the extent such limitations did not apply to a
    pre-existing condition under comparable Plans) and eligibility waiting
    periods under group health plans of Cowlitz to be waived with respect to
    former employees of Northern who remain as employees of Cowlitz or its
    Subsidiaries (and their eligible dependents) and who become participants in
    such group health plans. Nothing in this Section 7.7 shall be interpreted as
    preventing Cowlitz or its Subsidiaries from amending, modifying or
    terminating any Plans or other contracts, arrangements, commitments or
    understandings, in a manner consistent with their terms and applicable law.

        (b) Northern agrees to amend its 401(k) plan prior to the Effective Time
    so that participant loans are no longer available.

        (c) If in the reasonable opinion of Cowlitz's outside counsel it is
    necessary under the SKADDEN, ARPS, SLATE, MEAGHER & FLOM LLP, SEC No-Action
    Letter, Fed. Sec. L. Rep. (CCH) PARA 77,515 (Jan. 12, 1999), for Cowlitz's
    Board of Directors to approve the Merger to permit the acquisition of
    Cowlitz Common Stock and options to purchase Cowlitz Common Stock by
    directors, officers or employees of Northern who become directors or
    officers of Cowlitz following the Effective Time to be exempt from
    Section 16(b) of the Exchange Act pursuant to Rule 16b-3(d), then Cowlitz's
    Board of Directors shall adopt appropriate resolutions prior to the
    Effective Time.

    7.8  INDEMNIFICATION; DIRECTORS' AND OFFICERS' INSURANCE.  Cowlitz shall
cooperate with the persons serving as officers and officers and directors of
Northern so that such persons are, to the extent available, covered by the
directors' and officers' liability insurance policy maintained by Northern (or a
replacement policy therefor) that serves to reimburse such officers and
directors with respect to claims against such officers and directors from facts
or events occurring at or prior to the Effective Time, which insurance shall
contain at least substantially the same coverage and amounts, and contain terms
and conditions substantially no less advantageous, as that coverage currently
provided by Northern; PROVIDED, HOWEVER, that in no event will Cowlitz be
required to expend in any one year an amount in excess of 100% of the annual
premiums currently paid by Northern for such insurance as set forth in
Section 4.20 of the Northern Disclosure Schedule (the "INSURANCE AMOUNT") to
maintain or procure such coverage or pay for premiums with respect to any period
more than three years after the Effective Time unless, in either case, a policy
providing lifetime coverage is available for an amount not to exceed $20,000;
PROVIDED FURTHER, that if the parties are unable to maintain or obtain the
insurance called for by this Section 7.8, they shall use its reasonable best
efforts to obtain as much comparable insurance as is available for the Insurance
Amount; PROVIDED FURTHER, that such officers and directors of Northern may be
required to make application and provide customary representations and
warranties to Cowlitz's insurance carrier for the purpose of obtaining such
insurance. Neither Cowlitz nor Cowlitz Bank shall have an obligation to
indemnify any of such officers and directors except to the extent of such
insurance coverage.

    7.9  ADDITIONAL AGREEMENTS.  In case at any time after the Effective Time
any further action is necessary or desirable to carry out the purposes of this
Agreement (including, without limitation, any merger between a Subsidiary of
Cowlitz and Northern) or to vest the Surviving Bank with full title to all
properties, assets, rights, approvals, immunities and franchises of any of the
parties to the Merger, the proper officers and directors of each party to this
Agreement and their respective Subsidiaries shall take all such necessary action
as may be reasonably requested by Cowlitz.

                                      C-33
<PAGE>
    7.10  ADVICE OF CHANGES.  Cowlitz and Northern shall promptly advise the
other party of any change or event which, individually or in the aggregate with
other such changes or events, has a Material Adverse Effect on it or which it
believes would or would be reasonably likely to cause or constitute a material
breach of any of its representations, warranties or covenants contained herein.

    7.11  SUBSEQUENT INTERIM AND ANNUAL FINANCIAL STATEMENTS.

        (a) As soon as reasonably available, but in no event more than 45 days
    after the end of each fiscal quarter (other than the fourth quarter of a
    fiscal year) or 90 days after the end of each fiscal year ending after the
    date of this Agreement, each party will deliver to the other party its
    Quarterly Report on Form 10-QSB or Form 10-Q or its Annual Report on
    Form 10-KSB or Form 10-K, as the case may be, as filed with the FDIC or the
    SEC under the Exchange Act.

        (b) As soon as reasonably practicable and as soon as they are available,
    but in no event more than 30 days, after the end of each calendar month
    ending after the date of this Agreement, Northern shall furnish to Cowlitz
    (i) financial statements (including balance sheet, statement of operations
    and stockholders' equity) of Northern as of and for such month then ended,
    (ii) servicing reports regarding cash flows, delinquencies and foreclosures
    on asset pools serviced or master serviced by Northern, and (iii) any
    internal management reports relating to the foregoing. All information
    furnished by Northern to Cowlitz pursuant to this Section 7.11(b) shall be
    held in confidence by Cowlitz to the extent required by, and in accordance
    with, the provisions of the Confidentiality Agreement.

    7.12  DISCLOSURE SUPPLEMENTS.

        (a) On the date five (5) business days prior to the Effective Date,
    Northern shall supplement or amend the Northern Disclosure Schedule with
    respect to any matter existing or known to Northern which (i) if existing,
    occurring or known at the date of this Agreement would have been required to
    be set forth or described in the Northern Disclosure Schedule or (ii) is
    necessary to correct any information therein which has been rendered
    inaccurate thereby so that the Northern Disclosure Schedule is accurately
    supplemented or amended as of the Effective Date. For the purpose of this
    Section 7.12(a), each reference to the date of this Agreement or an earlier
    date, as the case may be, in the representations and warranties of Northern
    contained in this Agreement shall be deemed to refer to the Effective Date.
    Notwithstanding this provision, no supplement or amendment to the Northern
    Disclosure Schedule shall be deemed to modify any representation or warranty
    for the purpose of determining satisfaction of the conditions set forth in
    Sections 8.2(a) and (b).

        (b) On the date five (5) business days prior to the Effective Date,
    Cowlitz shall supplement or amend the Cowlitz Disclosure Schedule with
    respect to any matter existing or known to Cowlitz which (i) if existing,
    occurring or known at the date of this Agreement would have been required to
    be set forth or described in the Cowlitz Disclosure Schedule or (ii) is
    necessary to correct any information therein which has been rendered
    inaccurate thereby so that the Cowlitz Disclosure Schedule is accurately
    supplemented or amended as of the Effective Date. For the purpose of this
    Section 7.12(b), each reference to the date of this Agreement or an earlier
    date, as the case may be, in the representations and warranties of Cowlitz
    contained in this Agreement shall be deemed to refer to the Effective Date.
    Notwithstanding this provision, no supplement or amendment to the Cowlitz
    Disclosure Schedule shall be deemed to modify any representation or warranty
    for the purpose of determining satisfaction of the conditions set forth in
    Section 8.3(a).

                                      C-34
<PAGE>
8.  CONDITIONS PRECEDENT

    8.1  CONDITIONS TO EACH PARTY'S OBLIGATION TO EFFECT THE MERGER.  The
respective obligations of each party to effect the Merger shall be subject to
the satisfaction at or prior to the Effective Time of the following conditions:

        (a) SHAREHOLDER APPROVALS.  The Merger and this Agreement shall have
    been approved and adopted by the requisite affirmative vote of the
    stockholders of Northern entitled to vote thereon. The issuance of the
    shares of Cowlitz Common Stock in the Merger shall have been approved by the
    requisite affirmative vote of the stockholders of Cowlitz entitled to vote
    thereon. The Merger and this Agreement shall have been approved by the sole
    stockholder of Cowlitz Bank.

        (b) NASDAQ LISTING.  The shares of Cowlitz Common Stock which shall be
    issued to the stockholders of Northern upon consummation of the Merger shall
    have been authorized for listing on Nasdaq, subject to official notice of
    issuance.

        (c) OTHER APPROVALS.  All regulatory approvals required to consummate
    the transactions contemplated hereby shall have been obtained and shall
    remain in full force and effect and all statutory waiting periods in respect
    thereof, shall have expired or been terminated (all such approvals and the
    expiration or termination of all such waiting periods being referred to
    herein as the "REQUISITE REGULATORY APPROVALS").

        (d) S-4 EFFECTIVENESS.  The S-4 shall have become effective under the
    Securities Act, no stop order suspending the effectiveness of the S-4 shall
    have been issued and no proceedings for that purpose shall have been
    initiated or threatened by the SEC.

        (e) NO INJUNCTIONS OR RESTRAINTS; ILLEGALITY.  No order, injunction or
    decree issued by any court or agency of competent jurisdiction or other
    legal restraint or prohibition (an "INJUNCTION") preventing the consummation
    of the Merger or any of the other transactions contemplated by this
    Agreement shall be in effect. No statute, rule, regulation, order,
    injunction or decree shall have been enacted, entered, promulgated or
    enforced by any Governmental Entity which prohibits or makes illegal the
    consummation of the Merger.

    8.2  CONDITIONS TO OBLIGATIONS OF COWLITZ.  The obligations of Cowlitz to
effect the Merger are also subject to the satisfaction or waiver by Cowlitz at
or prior to the Effective Time of the following conditions:

        (a) REPRESENTATIONS AND WARRANTIES.  The representations and warranties
    of Northern set forth in this Agreement shall be true and correct in all
    respects as of the date of this Agreement and (except to the extent such
    representations and warranties speak as of an earlier date) as of the
    Closing Date as though made on and as of the Closing Date; PROVIDED,
    HOWEVER, that for purposes of determining the satisfaction of this
    condition, no effect shall be given to any exception in such representations
    and warranties relating to materiality or a Material Adverse Effect, and
    PROVIDED, FURTHER, that, for purposes of this condition, such
    representations and warranties (other than the representations and
    warranties contained in Section 4.2(a), which shall be true and correct in
    all material respects) shall be deemed to be true and correct in all
    respects unless the failure or failures of such representations and
    warranties to be so true and correct, individually or in the aggregate,
    results or would reasonably be expected to result in a Material Adverse
    Effect on Northern. Cowlitz shall have received a certificate signed on
    behalf of Northern by the Chief Executive Officer and Chief Financial
    Officer of Northern to the foregoing effect.

        (b) PERFORMANCE OF OBLIGATIONS OF NORTHERN.  Northern shall have
    performed in all material respects all obligations required to be performed
    by it under this Agreement at or prior to the Closing Date, and Cowlitz
    shall have received a certificate signed on behalf of Northern by the Chief
    Executive Officer and the Chief Financial Officer of Northern to such
    effect.

                                      C-35
<PAGE>
        (c) BURDENSOME CONDITION.  There shall not be any action taken, or any
    statute, rule, regulation, order, directive, memorandum of understanding or
    similar restriction enacted, entered, enforced or deemed applicable to
    Northern or the transactions contemplated by this Agreement, by any
    Governmental Entity, in connection with the grant of a Requisite Regulatory
    Approval or otherwise, which imposes any restriction or condition which
    would be reasonably likely to have or result in a Material Adverse Effect on
    the Surviving Bank or Cowlitz or prevent the Surviving Bank or Cowlitz from
    realizing substantially all of the contemplated benefits of the transactions
    contemplated by this Agreement.

        (d) DIRECTOR RESIGNATIONS.  Cowlitz shall have received resignations
    from each director of Northern, except to the extent otherwise requested by
    Cowlitz.

        (e) EMPLOYMENT AGREEMENT.  The employment agreement entered into at the
    date of this Agreement between Cowlitz Bank and the Northern executive set
    forth on Annex 8.2(e) shall be in full force and effect and there shall have
    been no default by such employee thereunder.

        (f) NONCOMPETITION AGREEMENTS; OPTION AGREEMENTS.  Each of the
    noncompetition agreements and option agreements entered into at the date of
    this Agreement between Cowlitz and the Northern directors set forth on Annex
    8.2(f) shall be in full force and effect and there shall have been no
    default by any employee thereunder.

        (g) DISSENTERS.  The number of shares of Northern Common Stock with
    respect to which dissenters' rights have been perfected and not withdrawn
    shall not exceed 5% of the total outstanding shares of Northern Common
    Stock.

        (h) LEGAL PROCEEDINGS.  There shall not be any pending or threatened
    legal, administrative, arbitral or other proceedings, claims, actions or
    governmental or regulatory investigations of any nature against Northern,
    Cowlitz or any Subsidiary of Cowlitz or challenging the validity or
    propriety of the transactions contemplated by this Agreement as to which
    there is a significant possibility of an adverse determination and which, if
    adversely determined, would, individually or in the aggregate, have or
    reasonably be expected to have a Material Adverse Effect on Northern,
    Cowlitz or the Surviving Bank.

        (i) ORDERS.  Cowlitz or Cowlitz Bank shall have received oral or written
    assurances, in form and substance reasonably satisfactory to Cowlitz, from
    the FDIC and/or the Oregon Director that the Orders shall not be applicable
    to the Surviving Bank.

        (j) YEAR 2000 PROBLEMS.  Northern shall have addressed all Year 2000
    Problems identified in the Northern Y2K Plan on or before December 31, 1999
    and as of the Closing Date, no Year 2000 Problem shall have occurred which,
    individually or in the aggregate, have or would reasonably be expected to
    have a Material Adverse Effect on Northern.

        (k) DEPOSITS.  At the Effective Time, Northern shall have total deposits
    in an amount no less than 80% of the total deposits as of June 30, 1999, and
    such deposits shall bear substantially the same interest rates and be in
    substantially the same mix as the deposits as of June 30, 1999, other than
    such changes in the interest rates and/or mix that reflect changes affecting
    commercial banking businesses generally.

        (l) STOCKHOLDERS' EQUITY.  The Total Stockholders' Equity of Northern as
    of the Effective Time is at least $1,150,000.

        (m) AUDITOR'S OPINION.  Cowlitz shall have received an opinion of Arthur
    Andersen LLP, dated as of the Effective Date, in a form and substance
    reasonably satisfactory to Cowlitz, to the effect that amounts received by
    Cowlitz Bank from the Escrow with respect to Reimbursable Losses will be
    treated as income which would offset the relevant loss applicable to such
    Reimbursable Losses.

                                      C-36
<PAGE>
        (n) DIRECTORS' AND OFFICERS' INSURANCE.  Cowlitz shall have received, in
    a form and substance reasonably satisfactory to Cowlitz, the written
    agreement of each of the persons serving as officers and directors of Polar
    Beach immediately prior to the Effective Time to the terms and conditions
    set forth in Section 7.8.

    8.3  CONDITIONS TO OBLIGATIONS OF NORTHERN.  The obligation of Northern to
effect the Merger is also subject to the satisfaction or waiver by Northern at
or prior to the Effective Time of the following conditions:

        (a) REPRESENTATIONS AND WARRANTIES.  The representations and warranties
    of Cowlitz set forth in this Agreement shall be true and correct in all
    respects as of the date of this Agreement and (except to the extent such
    representations and warranties speak as of an earlier date) as of the
    Closing Date as though made on and as of the Closing Date; PROVIDED,
    HOWEVER, that for purposes of determining the satisfaction of this
    condition, no effect shall be given to any exception in such representations
    and warranties relating to materiality or a Material Adverse Effect, and
    PROVIDED, FURTHER, that, for purposes of this condition, such
    representations and warranties shall be deemed to be true and correct in all
    respects unless the failure or failures of such representations and
    warranties to be so true and correct, individually or in the aggregate,
    results or would reasonably be expected to result in a Material Adverse
    Effect on Cowlitz and its Subsidiaries taken as a whole. Northern shall have
    received a certificate signed on behalf of Cowlitz by the Chief Executive
    Officer and the Chief Financial Officer of Cowlitz to the foregoing effect.

        (b) PERFORMANCE OF OBLIGATIONS OF COWLITZ.  Cowlitz shall have performed
    in all material respects all obligations required to be performed by it
    under this Agreement at or prior to the Closing Date, and Northern shall
    have received a certificate signed on behalf of Cowlitz by the Chief
    Executive Officer and the Chief Financial Officer of Cowlitz to such effect.

        (c) LEGAL PROCEEDINGS.  There shall not be any pending or threatened
    legal, administrative, arbitral or other proceedings, claims, actions or
    governmental or regulatory investigations of any nature against Cowlitz or
    any Subsidiary of Cowlitz or challenging the validity or propriety of the
    transactions contemplated by this Agreement as to which there is a
    significant possibility of an adverse determination and which, if adversely
    determined, would, individually or in the aggregate, have or reasonably be
    expected to have a Material Adverse Effect on Cowlitz or the Surviving Bank.

9.  TERMINATION AND AMENDMENT

    9.1  TERMINATION.  This Agreement may be terminated at any time prior to the
Effective Time:

        (a) by mutual consent of Cowlitz and Northern in a written instrument,
    if the Board of Directors of each so determines;

        (b) by either Cowlitz or Northern if (i) any Governmental Entity which
    must grant a Requisite Regulatory Approval has denied approval of the Merger
    and such denial has become final and nonappealable or (ii) any Governmental
    Entity of competent jurisdiction shall have issued a final nonappealable
    order enjoining or otherwise prohibiting the consummation of the
    transactions contemplated by this Agreement;

        (c) by either Cowlitz or Northern if the Effective Time shall not have
    occurred on or before March 31, 2000, unless the failure of the Effective
    Time to occur by such date shall be due to the failure of the party seeking
    to terminate this Agreement to perform or observe the covenants and
    agreements of such party set forth herein; PROVIDED, HOWEVER, if the failure
    of the Effective Time to occur by March 31, 2000 is solely due to the
    failure to satisfy the condition set forth in Section 8.1(c), then the
    termination right set forth in this Section 9.1(c) shall not be exercisable
    until June 30, 2000;

                                      C-37
<PAGE>
        (d) by either Cowlitz or Northern (provided that the terminating party
    is not then in material breach of any representation, warranty, covenant or
    other agreement contained herein) if the other party shall have breached
    (i) any of the covenants or agreements made by such other party herein or
    (ii) any of the representations or warranties made by such other party
    herein, and in either case, such breach (x) is not cured within 30 days
    following written notice to the party committing such breach, or which
    breach, by its nature, cannot be cured prior to the Closing and (y) would
    entitle the non-breaching party not to consummate the transactions
    contemplated hereby under Section 8 hereof;

        (e) by either Cowlitz or Northern if any approval of the stockholders of
    Northern contemplated by this Agreement shall not have been obtained by
    reason of the failure to obtain the required vote at a duly held meeting of
    stockholders or at any adjournment or postponement thereof;

        (f) by the Board of Directors of Cowlitz, if the Board of Directors of
    Northern shall have withdrawn, modified or changed in a manner adverse to
    Cowlitz its approval or recommendation of this Agreement and the
    transactions contemplated hereby or if a Change of Control (as defined
    below) of Northern shall have occurred;

        (g) by either Cowlitz or Northern if any approval of the stockholders of
    Cowlitz contemplated by this Agreement shall not have been obtained by
    reason of the failure to obtain the required vote at a duly held meeting of
    stockholders or at any adjournment or postponement thereof;

        (h) by the Board of Directors of Northern, if the Board of Directors of
    Cowlitz shall have withdrawn, modified or changed in a manner adverse to
    Northern its approval or recommendation of the issuance of Cowlitz Common
    Stock in the Merger

        (i) by the Board of Directors of Cowlitz if a tender offer or exchange
    offer for 25% or more of the outstanding shares of Northern Common Stock is
    commenced (other than by Cowlitz or a Subsidiary thereof), and the Board of
    Directors of Northern recommends that the stockholders of Northern tender
    their shares in such tender or exchange offer or otherwise fails to
    recommend that such stockholders reject such tender offer or exchange offer
    within 10 Business Days after the commencement thereof (which, in the case
    of an exchange offer, shall be the effective date of the registration
    statement relating to such exchange offer);

        (j) by the Board of Directors of Northern prior to the date on which the
    stockholders of Northern shall have voted to approve this Agreement and the
    Merger, if (i) any person or entity shall have made (and shall not have
    withdrawn) a Takeover Proposal that is determined by the Northern Board of
    Directors to constitute a Superior Proposal (as defined below), and
    (ii) the Northern Board of Directors determines in its good faith reasonable
    judgment, after consultation with outside counsel, that failure to terminate
    this Agreement in order to accept the Superior Proposal would constitute a
    breach of fiduciary duty; PROVIDED, HOWEVER, that Northern may not terminate
    this Agreement pursuant to this Section 9.1(j) unless it has given Cowlitz
    10 Business Days prior written notice of its intention to so terminate this
    Agreement (which notice must specify all material terms and conditions of
    such Superior Proposal and the identity of the person or persons (or entity
    or entities, as the case may be) making such Superior Proposal and must be
    accompanied by a copy of the agreements setting forth such Superior
    Proposal) and has offered Cowlitz the opportunity to amend the terms and
    conditions of this Agreement so that the failure of the Northern Board of
    Directors to terminate this Agreement, as so amended, in order to accept the
    Superior Proposal would not constitute a breach of fiduciary duty; and
    PROVIDED, FURTHER, that the Northern Board of Directors may not terminate
    this Agreement pursuant to this Section 9.1(j) unless simultaneously with
    such termination Northern pays to Cowlitz the amounts specified in
    Section 9.2(b) and enters into a definitive acquisition, merger or similar
    agreement to

                                      C-38
<PAGE>
    effect and consummate such Superior Proposal with the person or entity
    making such Superior Proposal.

    For purposes of this Agreement, (A) a "SUPERIOR PROPOSAL" shall mean any
    BONA FIDE Takeover Proposal made by an unaffiliated third party that the
    Northern Board of Directors determines in its good faith reasonable judgment
    (based on the advice of an independent financial advisor) represents
    superior value to the holders of Northern Common Stock than the transactions
    contemplated by this Agreement and for which any required financing is
    either committed or is, in the good faith reasonable judgment of Northern's
    Board of Directors (based on the advice of such independent financial
    advisor), reasonably capable of being obtained on a timely basis by the
    person making such Takeover Proposal; and (B) a "CHANGE OF CONTROL" shall
    mean the acquisition, directly or indirectly, by any person or entity,
    together with its affiliates (as defined in Rule 12b-2 under the Exchange
    Act), or any other group (as defined in Section 13(d) of the Exchange Act),
    including through the formation of any such group or the affiliation of any
    such persons or entities, of, or of the right to acquire or direct the
    exercise of, 30% or more of the voting power of the capital stock of
    Northern entitled to approve this Agreement and the Merger or to elect
    directors of Northern; or

        (k) by Cowlitz if a Subsequent Triggering Event (as defined in the Stock
    Option Agreement) has occurred.

    9.2  EFFECT OF TERMINATION.

        (a) In the event of termination of this Agreement by either Cowlitz or
    Northern as provided in Section 9.1, this Agreement shall forthwith become
    void and have no effect, and none of Cowlitz, Northern, any of their
    respective Subsidiaries or any of the officers or directors of any of them
    shall have any liability of any nature whatsoever hereunder, or in
    connection with the transactions contemplated hereby, except that
    (i) Sections 7.2(b), 9.2, and 10.2 shall survive any termination of this
    Agreement and (ii) notwithstanding anything to the contrary contained in
    this Agreement, neither Cowlitz nor Northern shall be relieved or released
    from any liabilities or damages arising out of its willful breach of any
    provision of this Agreement.

        (b) If this Agreement is terminated (i) by Cowlitz pursuant to
    Section 9.1(f) or (i), (ii) by Cowlitz or Northern pursuant to
    Section 9.1(e) because of a failure to obtain the required approval of the
    stockholders of Northern after a Takeover Proposal for Northern shall have
    been publicly disclosed, or any person or entity shall have publicly
    disclosed an intention (whether or not conditional) to make a Takeover
    Proposal, (iii) by Northern pursuant to Section 9.1(j), (iv) by Cowlitz
    pursuant to Section 9.1(k) or (v) by Cowlitz pursuant to Section 9.1(d) if
    the breach giving rise to such termination was willful and, at or prior to
    such termination, a Takeover Proposal shall have been made known to Northern
    or shall have been publicly disclosed to Northern's stockholders, or any
    person or entity shall have made known to Northern or otherwise publicly
    disclosed an intention (whether or not conditional) to make a Takeover
    Proposal, and regardless of whether such Takeover Proposal shall have been
    rejected by Northern or withdrawn prior to the time of such termination,
    then in any such case Northern shall (A) pay to Cowlitz a termination fee of
    $425,000 and (B) in addition to such termination fee, reimburse Cowlitz and
    Cowlitz Bank for their documented and reasonable out-of-pocket expenses
    incurred by each of them in connection with this Agreement and the
    transactions contemplated hereby (including without limitation, filing fees,
    printing costs and fees and expenses of legal, accounting and financial
    advisors). In the event Cowlitz has exercised all or any part of the Option,
    then Cowlitz shall not be entitled to the termination fee set forth in
    (A) above, but Northern shall nonetheless pay any reimbursement amounts due
    to Cowlitz and Cowlitz Bank in accordance with (B) above.

        (c) Any termination fee and/or reimbursement amount that becomes payable
    pursuant to Section 9.2(b) shall be paid by wire transfer of immediately
    available funds to an account

                                      C-39
<PAGE>
    designated by Cowlitz within one Business Day following the termination of
    this Agreement, except that any termination fee or reimbursement amount that
    is payable as a result of the termination of this Agreement pursuant to
    Section 9.1(i) or Section 9.1(j) shall be paid simultaneously with such
    termination. Notwithstanding the foregoing, in no event shall Northern be
    obligated to pay any such fees to Cowlitz if immediately prior to the
    termination hereof Northern was entitled to terminate this Agreement
    pursuant to Section 9.1(d).

        (d) Northern and Cowlitz agree that the agreements contained in
    paragraphs (b) and (c) above are an integral part of the transactions
    contemplated by this Agreement, that without such agreements Cowlitz would
    not have entered into this Agreement, and that such amounts do not
    constitute a penalty. If Northern fails to pay Cowlitz the amounts due under
    paragraph (b) above within the time periods specified in paragraph (c)
    above, Northern shall pay the costs and expenses (including legal fees and
    expenses) incurred by Cowlitz in connection with any action, including the
    filing of any lawsuit, taken to collect payment of such amounts, together
    with interest on the amount of any such unpaid amounts at the publicly
    announced prime rate of The Chase Manhattan Bank from the date such amounts
    were required to be paid.

    9.3  AMENDMENT.  Subject to compliance with applicable law, this Agreement
may be amended by the parties hereto, by action taken or authorized by their
respective Boards of Directors, at any time before or after approval of the
matters presented in connection with the Merger by the stockholders of Northern;
PROVIDED, HOWEVER, that after any approval of the transactions contemplated by
this Agreement by Northern's stockholders, there may not be, without further
approval of such stockholders, any amendment of this Agreement which reduces the
amount or changes the form of the consideration to be delivered to the Northern
stockholders hereunder other than as contemplated by this Agreement. This
Agreement may not be amended except by an instrument in writing signed on behalf
of each of the parties hereto.

    9.4  EXTENSION; WAIVER.  At any time prior to the Effective Time, the
parties hereto may, to the extent legally allowed, (a) extend the time for the
performance of any of the obligations or other acts of the other parties hereto,
(b) waive any inaccuracies in the representations and warranties contained
herein or in any document delivered pursuant hereto and (c) waive compliance
with any of the agreements or conditions contained herein. Any agreement on the
part of a party hereto to any such extension or waiver shall be valid only if
set forth in a written instrument signed on behalf of such party, but such
extension or waiver or failure to insist on strict compliance with an
obligation, covenant, agreement or condition shall not operate as a waiver of,
or estoppel with respect to, any subsequent or other failure.

10. GENERAL PROVISIONS

    10.1  NONSURVIVAL OF REPRESENTATIONS, WARRANTIES AND AGREEMENTS.  None of
the representations, warranties, covenants and agreements in this Agreement or
in any instrument delivered pursuant to this Agreement shall survive the
Effective Time, except for those covenants and agreements contained herein and
therein which by their terms apply in whole or in part after the Effective Time.

    10.2  EXPENSES.  Except as provided in Section 9.2 hereof, all costs and
expenses incurred in connection with this Agreement and the transactions
contemplated hereby shall be paid by the party incurring such expense; PROVIDED,
HOWEVER, that notwithstanding anything to the contrary contained in this
Agreement, neither Cowlitz nor Northern shall be relieved or released from any
liabilities or damages arising out of its willful breach of any provision of
this Agreement.

    10.3  NOTICES.  All notices and other communications hereunder shall be in
writing and shall be deemed given if delivered personally, telecopied (with
confirmation), mailed by registered or certified

                                      C-40
<PAGE>
mail (return receipt requested) or delivered by an express courier (with
confirmation) to the parties at the following addresses (or at such other
address for a party as shall be specified by like notice):

        (a) if to Cowlitz or Cowlitz Bank, to:

       Cowlitz Bancorporation
       927 Commerce Avenue
       Longview, Washington 98632
       Fax: (360) 423-5461
       Attn: Charles W. Jarrett, President & COO

       and:

       Cowlitz Bank
       927 Commerce Avenue
       Longview, Washington 98632
       Fax: (360) 423-5461
       Attn: Charles W. Jarrett, President & CEO

       with a copy to:

       Heller Ehrman White & McAuliffe
       6100 Columbia Center
       701 Fifth Avenue
       Seattle, WA 98104
       Fax: (206) 447-0849
       Attn: Bernard L. Russell

        (b) if to Northern, to:

       Northern Bank of Commerce
       1001 Southwest Fifth Avenue
       Suite 250
       Portland, Oregon 97204
       Fax: (503) 306-5407
       Attn: William Spicer, Chairman

       with a copy to:

       Davis Wright Tremaine LLP
       Suite 2300
       1300 SW Fifth Avenue
       Portland, OR 97201
       Fax (503) 778-5299
       Attn: David C. Baca

    10.4  INTERPRETATION.  The words "hereof," "herein" and "hereunder" and
words of similar import when used in this Agreement shall refer to this
Agreement as a whole and not to any particular provision of this Agreement, and
Article and Section references are to this Agreement unless otherwise specified.
Whenever the words "include," "includes" or "including" are used in this
Agreement, they shall be deemed to be followed by the words "without
limitation." The table of contents and headings contained in this Agreement are
for reference purposes only and shall not affect in any way the meaning or
interpretation of this Agreement. No provision of this Agreement shall be
construed to require Northern, Cowlitz or any of their respective Subsidiaries
or affiliates to take any action which would violate or conflict with any
applicable law (whether statutory or common), rule or regulation.

                                      C-41
<PAGE>
    10.5  COUNTERPARTS.  This Agreement may be executed in counterparts, all of
which shall be considered one and the same agreement and shall become effective
when counterparts have been signed by each of the parties and delivered to the
other parties, it being understood that all parties need not sign the same
counterpart.

    10.6  ENTIRE AGREEMENT.  This Agreement (together with the documents and the
instruments referred to herein) constitutes the entire agreement and supersedes
all prior agreements and understandings, both written and oral, among the
parties with respect to the subject matter hereof, other than the
Confidentiality Agreement.

    10.7  GOVERNING LAW.  This Agreement shall be governed and construed in
accordance with the laws of the State of Washington, without regard to any
applicable conflicts of law.

    10.8  SEVERABILITY.  Any term or provision of this Agreement which is
invalid or unenforceable in any jurisdiction shall, as to that jurisdiction, be
ineffective to the extent of such invalidity or unenforceability without
rendering invalid or unenforceable the remaining terms and provisions of this
Agreement or affecting the validity or enforceability of any of the terms or
provisions of this Agreement in any other jurisdiction. If any provision of this
Agreement is so broad as to be unenforceable, the provision shall be interpreted
to be only so broad as is enforceable.

    10.9  PUBLICITY.  Cowlitz and Northern shall consult with each other before
issuing any press release with respect to the Merger or this Agreement and shall
not issue any such press release or make any such public statement without the
prior consent of the other party, which shall not be unreasonably withheld;
PROVIDED, HOWEVER, that a party may, without the prior consent of the other
party (but after prior consultation, to the extent practicable in the
circumstances) issue such press release or make such public statement as may
upon the advice of outside counsel be required by law or the rules and
regulations of Nasdaq. Without limiting the reach of the preceding sentence,
Cowlitz and Northern shall cooperate to develop all public announcement
materials and make appropriate management available at presentations related to
the transactions contemplated by this Agreement as reasonably requested by the
other party. In addition, Northern and its Subsidiaries shall (a) consult with
Cowlitz regarding communications with customers, stockholders, prospective
investors and employees related to the transactions contemplated hereby,
(b) provide Cowlitz with stockholder lists of Northern and (c) allow and
facilitate Cowlitz contact with stockholders of Northern and other prospective
investors.

    10.10  ASSIGNMENT; THIRD PARTY BENEFICIARIES.  Neither this Agreement nor
any of the rights, interests or obligations of any party hereunder shall be
assigned by any of the parties hereto (whether by operation of law or otherwise)
without the prior written consent of the other party. Subject to the preceding
sentence, this Agreement will be binding upon, inure to the benefit of and be
enforceable by the parties and their respective successors and permitted
assigns. Except as otherwise specifically provided in Section 7.8 hereof, this
Agreement (including the documents and instruments referred to herein) is not
intended to confer upon any person other than the parties hereto any rights or
remedies hereunder.

                                      C-42
<PAGE>
    IN WITNESS WHEREOF, Cowlitz, Cowlitz Bank and Northern have caused this
Agreement to be executed by their respective officers hereunto duly authorized
as of the date first above written.

<TABLE>
<S>                                             <C>
                                                COWLITZ BANCORPORATION

                                                                 By:           /s/ Charles W. Jarrett
                                                              ---------------------------------------
                                                                           Name:   Charles W. Jarrett
                                                                  -----------------------------------
                                                      Title:    President and Chief Operating Officer
                                                                  -----------------------------------

                                                COWLITZ BANK

                                                                 By:           /s/ Charles W. Jarrett
                                                              ---------------------------------------
                                                                           Name:   Charles W. Jarrett
                                                                  -----------------------------------
                                                      Title:    President and Chief Executive Officer
                                                                  -----------------------------------

                                                NORTHERN BANK OF COMMERCE

                                                               By:          /s/ John H. Holloway, Jr.
                                                              ---------------------------------------
                                                                        Name:   John H. Holloway, Jr.
                                                                  -----------------------------------
                                                      Title:    President and Chief Executive Officer
                                                                  -----------------------------------
</TABLE>

                                      C-43
<PAGE>
                                  ANNEX 2.6(d)

<TABLE>
<CAPTION>
CLASSIFICATION                         DESCRIPTION
--------------                         -----------
<S>                                    <C>
Special Mention......................  Marginally acceptable business credit; some potential
                                       weakness. Generally undesirable business constituting an
                                       undue and unwarranted credit risk but not to the point of
                                       justifying a Substandard classification. While the asset is
                                       currently protected, it is potentially weak. No loss of
                                       principal or interest is envisioned. Potential weaknesses
                                       might include a weakening financial condition, an
                                       unrealistic repayment program, inadequate sources of funds,
                                       or lack of adequate collateral, credit information, or
                                       documentation. Company is undistinguished and mediocre.

Substandard..........................  Unacceptable business credit, normal repayment in jeopardy.
                                       While no loss of principal or interest is envisioned, there
                                       is a positive and well-defined weakness which jeopardizes
                                       collection of debt. The asset is inadequately protected by
                                       the current sound net worth and paying capacity of the
                                       obligor or pledged collateral. There may already have been a
                                       partial loss of interest.

Doubtful.............................  Full payment questionable. Serious problems exist to the
                                       point where a partial loss of principal is likely.
                                       Weaknesses are so pronounced that on the basis of current
                                       information, conditions and values, collection is highly
                                       improbable.

Loss.................................  Expected total loss. An uncollectible asset or one of such
                                       little value it does not warrant classification as an active
                                       asset. Such an asset may, however, have recovery or salvage
                                       value, but not to the point where a write-off should be
                                       deferred, even though a partial recovery may occur in the
                                       future.
</TABLE>

                                      C-44
<PAGE>
                                  ANNEX 8.2(e)
                   EMPLOYMENT AGREEMENT UNDER SECTION 8.2(e)

John Holloway, Jr.

                                      C-45
<PAGE>
                                  ANNEX 8.2(f)
           NONCOMPETITION AND OPTION AGREEMENTS UNDER SECTION 8.2(f)

John Holloway, Jr.
William Spicer
Chris Brown
John Walrod
Kurt Wollenberg

                                      C-46
<PAGE>
                                AMENDMENT NO. 1
                                       TO
                          AGREEMENT AND PLAN OF MERGER

    This Amendment No. 1, dated November   , 1999, amends the Agreement and Plan
of Merger (the "Agreement") originally made and entered into as of the 14th day
of September, 1999, by and among COWLITZ BANCORPORATION, a Washington
corporation ("Cowlitz"), COWLITZ BANK, a corporation chartered under the banking
laws of the State of Washington ("Cowlitz Bank"), and NORTHERN BANK OF COMMERCE,
a corporation chartered under the banking laws of the State of Oregon
("Northern").

    1.  Each capitalized term used but not defined in this Amendment No. 1 shall
have the meaning provided for such term in the Agreement.

    2.  Sections 2.6(b), 2.6(b)(i) and 3.2(b)(iii) of the Agreement are each
amended by replacing the amount "$4,707,139" with the amount "$4,718,841".

    3.  Except as specifically amended by this Amendment No. 1, the Agreement
shall remain in full force and effect.

    4.  This Amendment No. 1 may be executed in one or more counterparts, all of
which shall be considered one and the same agreement, and the executed
counterparts taken together shall be deemed to be one originally executed
document.

    5.  This Amendment No. 1 shall be governed and construed in accordance with
the laws of the State of Washington, without regard to any applicable conflicts
of law.

    IN WITNESS WHEREOF, Cowlitz, Cowlitz Bank and Northern have caused this
Amendment No. 1 to be executed by their respective officers hereunto duly
authorized as of the date first above written.

<TABLE>
<S>                                             <C>
                                                                               COWLITZ BANCORPORATION

                                                                 By:           /s/ Charles W. Jarrett
                                                              ---------------------------------------
                                                                            Name:  Charles W. Jarrett
                                                                 ------------------------------------
                                                        Title:  President and Chief Operating Officer
                                                                -------------------------------------

                                                                                         COWLITZ BANK

                                                                 By:           /s/ Charles W. Jarrett
                                                              ---------------------------------------
                                                                            Name:  Charles W. Jarrett
                                                                 ------------------------------------
                                                        Title:  President and Chief Executive Officer
                                                                -------------------------------------

                                                                            NORTHERN BANK OF COMMERCE

                                                                    By:            /s/ James A. Wills
                                                              ---------------------------------------
                                                                                Name:  James A. Wills
                                                                 ------------------------------------
                                                                                    Title:  President
                                                                -------------------------------------
</TABLE>

                                      C-47
<PAGE>
                                   APPENDIX D

September 10, 1999

Board of Directors
Northern Bank of Commerce
1001 S.W. 5th Avenue, Suite 250
Portland, OR 97204

Members of the Board:

    You have requested our opinion as to the fairness, from a financial point of
view, to the shareholders of Northern Bank of Commerce ("NBOC") of the
consideration to be delivered to such shareholders by Cowlitz Bancorporation
("Cowlitz"), in connection with the proposed acquisition (the "Acquisition") of
NBOC by Cowlitz.

    We have assumed that the terms of the Acquisition are as set forth in the
draft Agreement and Plan of Merger (the "Agreement") between NBOC and Cowlitz
that you previously provided for our review. We understand that each share of
common stock of NBOC will have the right to receive approximately 0.8258 shares
of Cowlitz common stock upon closing of the Acquisition and the right to receive
up to $1.63 in cash two years after closing of the Acquisition.

    In arriving at our opinion, we have reviewed various financial and operating
information relating to NBOC and Cowlitz, including without limitation
historical financial reports of NBOC and Cowlitz, reports filed with bank
regulatory agencies, internal operating reports and analyses, asset quality
evaluations, and related information. We have also examined economic analyses of
and forecasts for NBOC and Cowlitz's market area and publicly available
information regarding other banking institutions operating in such market area.
We have also held discussions with NBOC's and Cowlitz's management regarding the
business, recent operating results, and future prospects for NBOC and Cowlitz.

    We have also considered financial and stock market data for NBOC and
Cowlitz, as well as, the views of management concerning the financial,
operational and strategic benefits and implications of the Acquisition. We have
additionally examined and considered financial and stock market data for similar
public companies, the publicly available financial terms of certain other
similar business combinations, and other analyses and considerations which we
deemed relevant.

    In conducting our review and arriving at our opinion, we have relied,
without independent investigation, upon the accuracy and completeness of all
financial and other information publicly available or provided to us by NBOC and
Cowlitz. We have also assumed the reasonableness of and relied upon the
estimates and judgements of management of NBOC and Cowlitz as to the future
business and financial prospects. We have not made an independent evaluation or
appraisal of the assets or liabilities (contingent or otherwise) of NBOC or
Cowlitz, nor have we been furnished with any such evaluations or appraisals. Our
opinion is necessarily based upon economic, market, financial and other
conditions as they exist and can be evaluated on the date hereof and the
information provided to us through the date hereof.

    D.A. Davidson & Co. is engaged in the valuation of companies and their
securities in the course of its business as an investment firm. In the ordinary
course of our business, we publish investment research regarding NBOC and make a
market in its common stock. For our services in connection with the Acquisition,
including rendering this opinion, we will receive a fee from NBOC.

    It is understood that this letter is intended solely for the benefit and use
of the Board of Directors of NBOC in its consideration of the Acquisition and is
not intended to be and does not constitute a

                                      D-1
<PAGE>
Board of Directors
September 10, 1999
Page Two

recommendation to any shareholder as to how such shareholder should vote with
respect to the Acquisition.

    Based upon and subject to the foregoing, it is our opinion that, as of the
date hereof, the consideration to be delivered to the shareholders of NBOC in
connection with the Acquisition is fair, from a financial point of view, to such
shareholders.

<TABLE>
<S>  <C>                                         <C>
Very truly yours,
D.A. Davidson & Co.

     /s/ DAREN J. SHAW
     -----------------------------------------
     Daren J. Shaw
     Managing Director
By:
</TABLE>

                                      D-2
<PAGE>
                                   APPENDIX E

September 14, 1999

The Board of Directors
Cowlitz Bancorporation
927 Commerce Avenue
Longview, Washington 98632

Gentlemen:

    It is Sage Capital LLC's ("Sage") understanding that Cowlitz Bancorporation
("Cowlitz") entered into a transaction as described in an Acquisition Agreement
dated September 14, 1999 with Northern Bank of Commerce ("Northern"). Under the
terms of the Acquisition Agreement, Northern shall be merged into Cowlitz (the
"Acquisition"). Cowlitz will issue to Northern shareholders a combination of
stock and cash in exchange for their shares. In accordance with the Acquisition
Agreement, the cash component will be held in escrow for twenty-four
(24) months, to be held in reserve against certain events. At the end of the
twenty-four month period, the remaining value of the escrow account if any, will
be distributed to Northern shareholders. The stock component of the Transaction
will be based on formulas as specified within the Acquisition Agreement. The
specific, terms and conditions of the Acquisition are set forth more fully in
the Acquisition Agreement.

    Sage was asked to render an opinion to the Board of Directors of Cowlitz as
to whether the Aggregate Consideration to be paid by Cowlitz pursuant to the
Acquisition Agreement (the "Acquisition Consideration") was fair to the
shareholders of Cowlitz from a financial point of view (the "Opinion"). Cowlitz
has agreed to reimburse Sage for reasonable out-of-pocket expenses and to
indemnify Sage against certain liabilities relating to or arising out of
services performed by Sage. Sage's principals, while employed at another firm,
managed the underwriting process or the public sale of Cowlitz shares in March
of 1998.

    In arriving at its Opinion, Sage, among other things, (i) reviewed the
Acquisition Agreement between Cowlitz and Northern; (ii) reviewed certain other
documents relating to the Acquisition Agreement, including drafts of the Escrow
Agreement; (iii) reviewed publicly available information concerning Cowlitz and
Northern; (iv) held discussions with members of senior management of Cowlitz
concerning the business prospects of Northern, including managements views as to
the organization of and strategies with respect to the acquisition of Cowlitz
and Northern; (v) reviewed certain operating and financial reports prepared by
the managements of Cowlitz and Northern; (vi) reviewed certain other relevant
information made available to Sage from the internal records of Cowlitz and
Northern; (vii) reviewed the recent reported prices and trading activity for the
common stock of certain other companies engaged in businesses Sage considered
comparable to those of Cowlitz and compared certain publicly available financial
data for those comparable companies to similar data for Cowlitz;
(viii) reviewed the financial terms of certain other merger and acquisition
transactions that Sage deemed generally relevant; and (ix) performed and
considered such other studies, analyses, inquiries and investigations as Sage
deemed appropriate.

    In connection with Sage's review and for purposes of its Opinion, Sage did
not independently verify any of the foregoing information and assumed (i) all
such information is complete and accurate in all material respects, (ii) there
have been no material changes in the assets, financial condition, results of
operations, business or prospects of Cowlitz and Northern since the respective
dates of the last financial statements made available to Sage and all material
liabilities (contingent or otherwise, known or unknown) of Cowlitz and Northern
are as set forth in the respective financial statements, and (iii) no
adjustments will be made to the material terms of the Acquisition Agreement from
those set forth in the copies of the Acquisition Agreement delivered to Sage
prior to this date. With respect to

                                      E-1
<PAGE>
the financial information of Cowlitz and Northern provided to Sage by the
management of Cowlitz, Sage has assumed for purposes of the Opinion that such
information has been reasonably prepared on bases reflecting the best currently
available estimates and judgments of such management, at the time of
preparation, of the operating and financial performance of Cowlitz and Northern.
Sage did not prepare or obtain any independent evaluation or appraisal of any of
the assets or liabilities of Cowlitz or Northern, nor did Sage conduct a
physical inspection of the properties and facilities of Cowlitz or Northern in
connection with its Opinion. Sage's Opinion is necessarily based upon market,
economic, financial and other conditions as of the date of the Opinion and any
subsequent change in such conditions would require a reevaluation of this
Opinion.

    In rendering its Opinion, Sage does not express any opinion or make my
determination as to what specific consideration should be paid by Cowlitz in
connection with the Acquisition Agreement. The Opinion rendered by Sage is
limited to the evaluation and determination of whether the consideration to be
paid by Cowlitz according to the Acquisition Agreement is fair, from a financial
point of view, to the shareholders of Cowlitz and does not address the
underlying business decision of Cowlitz and Northern to engage in the
Acquisition Agreement. Sage is not expressing any opinion as to what the value
of Cowlitz common stock will be when issued pursuant to the Acquisition
Agreement or the price at which Cowlitz common stock will trade at any time.
Sage's Opinion does nor constitute a recommendation to any shareholders of
Cowlitz as to how such shareholder should vote on the proposed Acquisition
Agreement.

    This letter and the Opinion expressed herein are provided at the request and
for the information of the Board of Directors of Cowlitz and may not be quoted
or referred to or used for any other purpose without our prior written consent,
except that this letter may be disclosed in connection with any registration
statement on Form S-4 or proxy statement used in connection with the Acquisition
Agreement so long as this letter is quoted in full in such registration
statement on Form S-4 or proxy statement.

    Based upon and subject to the foregoing, it is Sage's opinion that, as of
the date hereof, the consideration to be paid by Cowlitz according to the
Acquisition Agreement is fair to the shareholders of Cowlitz from a financial
point of view.

<TABLE>
<S>  <C>                                        <C>  <C>
Best regards,
SAGE CAPITAL, LLC

     /s/ BRUCE J. ALEXANDER                          /s/ LAURA A. BLACK
     ----------------------------------------        ----------------------------------------
     Bruce J. Alexander                              Laura A. Black
     Managing Partner                                Managing Partner
By:                                             By:
</TABLE>

                                      E-2
<PAGE>
                                   APPENDIX F
                                ESCROW AGREEMENT

    THIS ESCROW AGREEMENT ("AGREEMENT") is made and entered into as of the   day
of             ,       , by and among COWLITZ BANCORPORATION, a Washington
corporation ("COWLITZ"), COWLITZ BANK, a corporation chartered under the banking
laws of the State of Washington ("COWLITZ BANK"), NORTHERN BANK OF COMMERCE, a
corporation chartered under the banking laws of the State of Oregon
("NORTHERN"), and             , as escrow agent (the "ESCROW AGENT").

                                    RECITALS

    WHEREAS, Cowlitz, Cowlitz Bank and Northern have entered into an Agreement
and Plan of Merger dated as of September 14, 1999 (the "MERGER AGREEMENT"),
pursuant to which Northern has agreed to merge with and into Cowlitz Bank with
Cowlitz Bank being the surviving entity (the "MERGER");

    WHEREAS, Section 3.2.(b) of the Merger Agreement provides that an amount
equal to the product of (1) the Cash Consideration (as defined in the Merger
Agreement) and (2) the Initial Nondissenting Shares (as defined below), or
            Dollars ($            ) (the "ESCROWED FUNDS"), to be paid by
Cowlitz to the holders of Northern Shares other than holders of Final Dissenting
Shares (as defined below) (the "ESCROW STOCKHOLDERS") shall be delivered to
            (the "EXCHANGE AGENT") at the Effective Time;

    WHEREAS, the Exchange Agent shall be instructed to deliver the Escrowed
Funds to the Escrow Agent to be held in escrow to ensure that Cowlitz Bank shall
be properly reimbursed for certain losses;

    WHEREAS, pursuant to Section 3.2.(b) of the Merger Agreement,
and             have been appointed by Northern as representatives of the Escrow
Stockholders (the "NORTHERN MEMBERS"), and             and             have been
appointed by Cowlitz Bank as representatives of Cowlitz Bank (the "COWLITZ BANK
MEMBERS," and together with the Northern Members, the "COMMITTEE"), to take all
actions called for by Section 3.2.(b) of the Merger Agreement on behalf of the
Committee; and

    WHEREAS, Cowlitz, Cowlitz Bank, Northern and the Escrow Agent desire to
enter into this Agreement to establish the terms and conditions under which the
Escrow Agent will hold and disburse the Escrowed Funds;

    NOW, THEREFORE, in consideration of the mutual covenants, conditions and
agreements contained in this Agreement, and for other valuable consideration,
the receipt and sufficiency of which are hereby acknowledged, Cowlitz, Cowlitz
Bank, Northern and the Escrow Agent agree as follows:

    1.  DEFINITIONS.

    a.  "ADDITIONAL ESCROWED FUNDS" has the meaning given in Section 3.(c).

    b.  "ADDITIONAL EXPENSES" has the meaning giving in Section 5.(c).

    c.  "ADDITIONAL NONDISSENTING SHARES" means the total number of Northern
Shares outstanding as of the Effective Time less the sum of (i) the Initial
Nondissenting Shares and (ii) the Final Dissenting Shares.

    d.  "AGGREGATE UNUSED FINAL THRESHOLD AMOUNT" has the meaning given in
Section 7.(b).

    e.  "COMMITTEE" has the meaning given in the Recitals.

    f.  "COMMITTEE MEMBER" means a Northern Member or Cowlitz Bank Member.

                                      F-1
<PAGE>
    g.  "COURT ORDER" means a final order of a court of competent jurisdiction
resolving a dispute hereunder and directing disposition of a portion of the
Escrowed Funds, from which no appeal is or can be taken.

    h.  "COWLITZ" has the meaning given in the Introduction.

    i.  "COWLITZ BANK" has the meaning given in the Introduction.

    j.  "COWLITZ BANK MEMBERS" has the meaning given in the Recitals.

    k.  "DOUBTFUL" with respect to an Identified Loan has the meaning assigned
to such term in Schedule 1 attached.

    l.  "EFFECTIVE TIME" means the date and time when the Merger becomes
effective.

    m. "ESCROW AGENT" has the meaning given in the Introduction.

    n.  "ESCROW EXPIRATION DATE" has the meaning given in Section 5.(a).

    o.  "ESCROW PERIOD" has the meaning given in Section 5.(a).

    p.  "ESCROW STOCKHOLDERS" has the meaning given in the Recitals.

    q.  "ESCROWED FUNDS" has the meaning given in the Recitals.

    r.  "EXCHANGE AGENT" has the meaning given in the Recitals.

    s.  "FINAL APPOINTED EXAMINER" has the meaning given in Section 7.(e).

    t.  "FINAL DISPUTE NOTICE" has the meaning given in Section 7.(e).

    u.  "FINAL DISSENTING SHARES" means all Northern Shares held by Northern
stockholders who shall have finally perfected their rights to appraisal and
payment under Sections 711.175-.185 of Title 53 of the Oregon Revised Statutes
and received payment for such Northern Shares in accordance therewith after the
Effective Time.

    v.  "FINAL MEETING" has the meaning given in Section 7.(c).

    w.  "FINAL MEETING DEADLINE DATE" has the meaning given in Section 7.(c).

    x.  "FINAL MEETING NOTICE" has the meaning given in Section 7.(c).

    y.  "FINAL SETTLEMENT STATEMENT" has the meaning given in Section 7.(a).

    z.  "GAAP" means generally accepted accounting principles.

    aa. "IDENTIFIED LOANS" means the loans set forth on Schedule 2 attached.

    bb. "INITIAL NONDISSENTING SHARES" means the total number of Northern Shares
outstanding as of the Effective Time, excluding all Northern Shares held by
Stockholders who, as of the Effective Time, (i) voted against the Merger or sent
or delivered notices of dissent, (ii) are eligible to and have demanded
appraisal rights with respect thereto in accordance with Sections 711.175-.185
of Title 53 of the Oregon Revised Statutes and (iii) as of the Effective Time,
shall not have effectively withdrawn or lost their rights to appraisal and
payment under Sections 711.175-.185 of Title 53 of the Oregon Revised Statutes.

    cc. "INTEREST" has the meaning given in Section 3.(a).

    dd. "INTERIM APPOINTED EXAMINER" has the meaning given in Section 5.(f).

    ee. "INTERIM COMMITTEE MEETING" has the meaning given in Section 5.(d).

    ff.  "INTERIM MEETING DEADLINE DATE" has the meaning given in
Section 5.(d).

                                      F-2
<PAGE>
    gg. "INTERIM MEETING NOTICE" has the meaning given in Section 5.(d).

    hh. "JOINT INSTRUCTIONS" means written instructions executed by (i) a
majority of the Committee Members regarding delivery of a portion of the
Escrowed Funds (except as otherwise provided in Sections 5.(d) and 7.(c)) or
(ii) in the case of written instructions delivered by the Committee under
Section 5.(f) or 7.(e), the Interim Appointed Examiner or Final Appointed
Examiner, as the case may be, and two (2) Committee Members.

    ii.  "LOAN EXAMINER" means a person or entity that is a loan examiner, loan
reviewer or loan auditor (other than a current employee, officer or director of
Cowlitz or Cowlitz Bank) with at least ten (10) years experience in commercial
lending, banking and/or bank examining, including at least two (2) years
experience as a loan examiner, loan reviewer or loan auditor.

    jj.  "LOSS" with respect to an Identified Loan has the meaning assigned to
such term in Schedule 1 attached.

    kk. "LOSS AMOUNT" has the meaning given in Section 5.(b).

    ll.  "MEETING EXPENSES" has the meaning given in Section 2.(c).

    mm. "MERGER" has the meaning given in the Recitals.

    nn. "MERGER AGREEMENT" has the meaning given in the Recitals.

    oo. "NORTHERN" has the meaning given in the Introduction.

    pp. "NORTHERN MEMBERS" has the meaning given in the Recitals.

    qq. "NORTHERN SHARES" means the shares of Northern common stock, par value
per share $1.00.

    rr. "RECOVERED AMOUNT" has the meaning given in Section 6.(a).

    ss. "REIMBURSABLE LOSS" has the meaning given in Section 5.(a).

    tt.  "SPECIAL MENTION" with respect to an Identified Loan has the meaning
assigned to such term in Schedule 1 attached.

    uu. "STANDARDS" with respect to a decision or action taken by a Loan
Examiner or Committee Member hereunder relating to an Identified Loan, means a
decision (i) made in good faith and (ii) (A) in accordance with Cowlitz Bank's
internal loan policies as in effect from time to time or (B) in accordance with
a determination by any applicable state or federal banking regulatory agency
that a loss should be taken with respect to such Identified Loan.

    vv. "SUBSTANDARD" with respect to an Identified Loan has the meaning
assigned to such term in Schedule 1 attached.

    ww. "THRESHOLD AMOUNT" means, with respect to an Identified Loan, the
threshold amount, if any, allocated to such Identified Loan as set forth in
Schedule 2 attached as such amount may be adjusted pursuant to this Agreement.

    xx. "UNUSED FINAL THRESHOLD AMOUNT" has the meaning given in Section 7.(b).

    2.  APPOINTMENT OF ESCROW AGENT; ACTIONS OF THE COMMITTEE.

        a.  Northern, Cowlitz and Cowlitz Bank hereby appoint the Escrow Agent
    to serve in accordance with the terms of this Agreement, and the Escrow
    Agent hereby accepts such appointment and agrees to act in such capacity
    upon the express terms, conditions and provisions hereinafter set forth in
    this Agreement.

        b.  Three (3) Committee Members shall constitute a quorum in order to
    take any actions called for by this Agreement, except as otherwise provided
    in Sections 5.(d) and 7.(c). When a

                                      F-3
<PAGE>
    quorum exists, actions may be taken by the Committee by an affirmative vote
    of at least three (3) of the Committee Members present (except as otherwise
    provided in Sections 5.(d) and 7.(c)), and such approval shall be evidenced
    in writing signed by at least two Committee Members on behalf of the
    Committee. Committee Members may participate in meetings of the Committee in
    person or by telephone conference call. All notices to be sent to the
    Committee shall be sent to each of the Committee Members.

        c.  Cowlitz Bank shall have the right, from time to time and in its sole
    discretion, to appoint a substitute Cowlitz Bank Member upon written notice
    to the Escrow Agent and the Northern Members. If a Northern Member should
    prior to the Effective Time become unable or unwilling to serve on the
    Committee, such Northern Member shall give Northern and Cowlitz prompt prior
    written notice thereof, and Northern shall have the right, in its sole
    discretion, to appoint a substitute Northern Member no later than the
    earlier of (A) the Effective Time or (B) five (5) business days after
    delivery of such notice. If a Northern Member should become after the
    Effective time unable or unwilling to continue to serve on the Committee,
    such Northern Member shall give Cowlitz Bank, the remaining Northern Member
    and the Escrow Agent prior written notice thereof, and within five
    (5) business days after delivery of such notice, the remaining Northern
    Member shall have the right, in his or her sole discretion, to appoint a
    substitute Northern Member; PROVIDED, that such substitute Northern Member
    (i) must have been a Shareholder at the Effective Time, (ii) (A) must have
    been a director or officer of Northern at the Effective Time or (B) in the
    remaining Northern Member's reasonable judgment, must be a sophisticated
    financial investor, and (iii) is not an employee, director or officer of
    Cowlitz or Cowlitz Bank.

        d.  Each Northern Member shall receive compensation for his or her
    service on the Committee in the amount of $1,000 for each 12-month period
    during the term of this Agreement, payable within thirty (30) days of the
    first and second anniversaries of the Effective Time; PROVIDED, HOWEVER,
    that if such Northern Member is not serving on the Committee at the first
    anniversary date or Escrow Expiration Date, as the case may be, then no fee
    shall be due or payable to him or her. Such fee shall be payable from the
    Interest, if any, remaining at the first anniversary date or Escrow
    Expiration Date, as the case may be; PROVIDED, HOWEVER, that such fee shall
    be paid if and only to the extent there is sufficient Interest therefor. In
    addition, the reasonable out-of-pocket expenses, if any, incurred by a
    Northern Member in participating in Committee meetings hereunder ("MEETING
    EXPENSES") may be reimbursed from the Interest at the Escrow Expiration Date
    in accordance with Section 7.(d) or (f), as the case may be, but in no event
    shall any such reimbursement exceed the Interest remaining at such date. If
    at any time the Interest is insufficient to make any payments due and
    payable to the Northern Members in accordance with this Agreement, the
    amount available from the Interest to make such payments at such time shall
    be divided equally between the Northern Members entitled to payment.

        e.  No Northern Member or Cowlitz Bank Member shall have any liability
    to any party hereto (except the Escrow Agent). The Cowlitz Bank Members
    shall not have any duty to represent the interest of holders of Northern
    Common Stock and shall have no liability whatsoever to such holders. The
    Northern Members have been appointed to represent the interests of the
    holders of Northern Common Stock, but no Northern Member shall have any
    liability to any holder of Northern Common Stock with respect to acts or
    omissions in his or her capacity as a member of the Committee, unless it is
    established in a final judicial determination by clear and convincing
    evidence that any decision or action was undertaken with deliberate intent
    to injure the holders of Northern Common Stock or with reckless disregard
    for the best interest of such holders, and in any event, the liability shall
    be limited to actual, proximate, quantifiable damages.

                                      F-4
<PAGE>
    3.  DELIVERY INTO ESCROW.

        a.  The Exchange Agent shall be instructed by Cowlitz to deliver to the
    Escrow Agent the Escrowed Funds. The Escrow Agent agrees to hold the
    Escrowed Funds, including any interest or other income received on such
    investment or reinvestment of the Escrowed Funds ("INTEREST"), in escrow as
    agent for the Exchange Agent on behalf of the Escrow Stockholders, and to
    distribute the Escrowed Funds as provided herein. For purposes of this
    Agreement, the Escrowed Funds shall not be deemed to include the Interest.
    The Interest shall be separately accounted for and may only be used (i) for
    final distribution to the Exchange Agent and (ii) to pay those fees and
    expenses specified herein as payable from the Interest. The Escrowed Funds
    shall be invested by the Escrow Agent in (A) direct obligations of, or
    obligations fully guaranteed by, the United States of America with
    maturities no greater than three (3) months, (B) insured certificates of
    deposit, or time deposits, issued by commercial banks having a combined
    capital and surplus of not less than $500,000,000, with maturities no
    greater than three (3) months, and (C) money market mutual funds authorized
    solely to invest in direct obligations of, or obligations fully guaranteed
    by, the United States of America; PROVIDED, HOWEVER, that at all times
    during the term of this Agreement, at least the greater of (x) twenty
    percent (20%) of the Escrowed Funds or (y) $100,000 shall be invested in
    (C) above, unless the Escrowed Funds total less than $100,000, in which case
    all remaining Escrowed Funds shall be invested in (C) above.

        b.  The Escrow Agent shall have no duty or right to invest the Escrowed
    Funds until it receives written investment instructions from the Northern
    Members in accordance with Section 3.(a). The Escrow Agent shall not be
    liable for any loss from said investments. The Escrow Agent is authorized to
    redeem any such investments as necessary to make any payments or
    disbursements required hereunder and shall be held harmless by the Northern
    Members and Cowlitz Bank, jointly and severally, with respect to any losses
    or penalties incurred thereby. The Escrow Agent shall, at least ten
    (10) days prior to the maturity of any investment, notify the Northern
    Members of such impending maturity.

        c.  As soon as reasonably practicable after Cowlitz has determined the
    number of Final Dissenting Shares, if any, Cowlitz shall deliver to the
    Exchange Agent an amount equal to the product of the Cash Consideration (as
    defined in the Merger Agreement) and the Additional Nondissenting Shares
    (the "ADDITIONAL ESCROWED FUNDS"), plus interest thereon from the period
    starting on the Effective Time through the date of delivery of the
    Additional Escrowed Funds into escrow hereunder, to be held in escrow as
    part of the Escrowed Funds hereunder (it being understood and agreed that
    such interest shall be deemed to be part of the Interest held in escrow
    hereunder). The interest rate applicable to the Additional Escrowed Funds
    shall be equal to the average interest rate in effect with respect to the
    Escrowed Funds during such period. The Exchange Agent shall be instructed to
    deliver the Additional Escrowed Funds and the interest thereon to the Escrow
    Agent hereunder to be held in escrow as part of the Escrowed Funds and the
    Interest, respectively, in accordance with the terms and conditions of this
    Agreement. In the event that the number of Additional Nondissenting Shares
    is zero, Cowlitz shall not be required to deliver any Additional Escrowed
    Funds hereunder.

    4.  TAX MATTERS.  The Exchange Agent shall be instructed by Cowlitz to
deliver to the Escrow Agent any necessary tax forms or other necessary documents
from each Shareholder no later than [10] days after the Effective Time. Cowlitz
Bank and the Northern Members shall cooperate in obtaining such tax forms to the
extent they are not in the possession of the Exchange Agent, and Cowlitz Bank
shall use its reasonable best efforts to obtain the cooperation of the Exchange
Agent, if necessary. The Escrow Agent will treat the Escrow Stockholders as
beneficial owners of the Escrowed Funds and the Interest for tax purposes and
will report annually to the Escrow Stockholders and the relevant tax authorities
each Escrow Shareholder's share of the Interest received by the Escrow Agent in
accordance with such Escrow Shareholder's proportionate share of the total
number of Northern

                                      F-5
<PAGE>
Shares held by the Escrow Stockholders as of such time relative to the number of
Northern Shares held by such Escrow Shareholder as of the Effective Time.

    5.  PURPOSE; INTERIM COMMITTEE MEETINGS; REIMBURSEMENT.

        a.  Cowlitz Bank shall be entitled to be reimbursed from the Escrowed
    Funds for (x) any loss incurred by it during the period (the "ESCROW
    PERIOD") beginning on the date hereof and ending on the 24-month anniversary
    of such date (the "ESCROW EXPIRATION DATE") relating to an Identified Loan
    in the manner provided in this Section 5 and (y) any loss expected to be
    incurred by it after the Escrow Expiration Date relating to an Identified
    Loan in the manner provided in Section 7 (each, a "REIMBURSABLE LOSS");
    PROVIDED, HOWEVER, that in no event shall the aggregate of such
    reimbursements exceed the Escrowed Funds. A loss incurred by Cowlitz Bank
    during the Escrow Period related to an Identified Loan shall be from time to
    time deemed to occur and to be a Reimbursable Loss if (i) Cowlitz Bank, in
    accordance with the Standards, determines that a specific reserve is
    necessary for such Identified Loan in excess of the then Threshold Amount
    for such Identified Loan (regardless of whether such Identified Loan is in
    default); (ii) Cowlitz Bank, in accordance with the Standards, determines
    that the value of such Identified Loan should be written down on the books
    of Cowlitz Bank (regardless of whether such Identified Loan is in default);
    (iii) Cowlitz Bank suffers a loss as a result of a good faith sale, other
    disposition or payoff of such Identified Loan; or (iv) such Identified Loan
    is in default for 90 days or more and after using commercially reasonable
    efforts to obtain payment on such Identified Loan, Cowlitz Bank, in
    accordance with the Standards, determines that such Identified Loan is
    classified as Special Mention, Substandard, Doubtful or Loss. A Reimbursable
    Loss shall include, without limitation, a loss incurred by Cowlitz Bank
    relating to an Identified Loan to the extent the net amount actually
    received by Cowlitz Bank upon the sale of the collateral securing such
    Identified Loan is less than the amount previously estimated by the
    Committee in its determination of an earlier Reimbursable Loss with respect
    to such Identified Loan.

        b.  The amount (the "LOSS AMOUNT") required to reimburse Cowlitz Bank
    for a Reimbursable Loss shall be estimated by Cowlitz Bank in good faith,
    and the Loss Amount generally shall include, without limitation, (x) the
    amount of any additional reserve described in clause (i) of Section 5.(a) or
    clause (i) of Section 7.(b); (y) the amount of any write-down or loss
    described in clause (ii) or (iii) of Section 5.(a) or clause (ii) or
    (iii) of Section 7.(b) in excess of the Identified Loan's then Threshold
    Amount and (z) in the case of loans described in clause (iv) of
    Section 5.(a) or clause (iv) or (v) of Section 7.(b), the amount of loss
    expected by Cowlitz in excess of the then Threshold Amount the unpaid
    principal and interest on such Identified Loan (less the net amount actually
    received, if any, by Cowlitz Bank upon the sale of any collateral securing
    such Identified Loan) and Cowlitz Bank's out-of-pocket expenses incurred in
    its attempts to obtain payment on such Identified Loan, including without
    limitation, reasonable attorneys' fees, which expenses shall be incurred
    consistently with Cowlitz Bank's customary collection practices.

        c.  From time to time during the term of this Agreement, Cowlitz Bank
    may incur certain expenses in its attempts to (i) obtain payment with
    respect to an Identified Loan in order to prevent such Identified Loan from
    becoming a Reimbursable Loss and/or (ii) prevent a loss from becoming larger
    or to reduce the size of a potential Reimbursable Loss. To the extent any of
    such expenses have not previously been reimbursed to Cowlitz Bank as a
    Reimbursable Loss from the Escrowed Funds ("ADDITIONAL EXPENSES"), Cowlitz
    Bank shall be entitled to be reimbursed for such Additional Expenses from
    the Escrowed Funds by including such Additional Expenses in the Final
    Settlement Statement provided such expenses have been incurred consistently
    with Cowlitz Bank's customary collection practices. Additional Expenses may
    include, without limitation, reasonable attorneys' fees, outside collateral
    appraisals and court fees and costs. The Loss Amount with respect to
    Additional Expenses shall be equal to Cowlitz Bank's estimate in good faith
    of such Additional Expenses.

                                      F-6
<PAGE>
        d.  If at any time during the Escrow Period Cowlitz Bank has a good
    faith belief that a Reimbursable Loss has occurred, Cowlitz Bank shall give
    written notice (an "INTERIM MEETING NOTICE") to the Committee setting forth
    in reasonable detail Cowlitz Bank's basis for such Reimbursable Loss and the
    estimated Loss Amount, and of its desire to convene a meeting of the
    Committee Members (an "INTERIM COMMITTEE MEETING") on a date no earlier than
    five (5) business days after the date of such Interim Meeting Notice. After
    receipt of such Interim Meeting Notice, each Committee Member shall promptly
    communicate to Cowlitz Bank such Committee Member's availability on the
    meeting date specified in such Interim Meeting Notice and his or her
    availability during the seven (7) calendar days following such meeting date.
    Upon Cowlitz Bank's determination of a time, date and location for such
    Interim Committee Meeting which is acceptable to all four (4) Committee
    Members, Cowlitz Bank shall promptly give written confirmation thereof to
    each Committee Member; PROVIDED, HOWEVER, that if such date is beyond the
    seventh (7th) calendar day (the "INTERIM MEETING DEADLINE DATE") following
    the initial meeting date specified in the Interim Meeting Notice, then if
    Cowlitz Bank determines that there is a date on or prior to the Interim
    Meeting Deadline Date on which three (3) Committee Members are able to
    participate, Cowlitz Bank shall have the right to set such Interim Committee
    Meeting on such earlier date, even though all Committee Members may be
    unable to participate on such date. Notwithstanding the foregoing, if at the
    Interim Committee Meeting, neither Northern Committee Member is present,
    then the Committee shall adjourn and Cowlitz Bank shall set a second Interim
    Committee Meeting date as soon as possible after the adjourned meeting using
    the procedure set forth in the preceding sentence; PROVIDED, HOWEVER, that
    if neither Northern Committee Member is present at such second Interim
    Committee Meeting, then two (2) Committee Members shall constitute a quorum
    for purposes of such Interim Committee Meeting, action may be taken at such
    meeting by an affirmative vote of the two (2) Committee Members present and
    Joint Instructions may be executed by the two (2) Committee Members present.

        e.  At such Interim Committee Meeting, the Committee shall determine, in
    accordance with the Standards, the applicable Loss Amount for such
    Reimbursable Loss, if any, and upon such determination, the Committee shall
    deliver Joint Instructions to the Escrow Agent with respect thereto. In
    making its determination, the Committee shall have the discretion to
    determine, in accordance with the Standards, the applicable classification
    of the Identified Loan and the estimated net amount anticipated to be
    received by Cowlitz Bank upon the sale of any collateral securing such
    Identified Loan. The Escrow Agent shall, immediately after receipt of the
    Joint Instructions, deliver to Cowlitz Bank from the Escrowed Funds cash in
    the amount specified therein.

        f.  If the Committee is unable to make such determination after meeting
    for one (1) day, the Committee shall appoint a Loan Examiner to resolve such
    dispute. If after one (1) day, the Committee is unable to agree on a Loan
    Examiner, then (i) the Northern Members shall jointly appoint a Loan
    Examiner, (ii) the Cowlitz Bank Members shall jointly appoint a Loan
    Examiner, and (iii) such appointed Loan Examiners shall jointly appoint a
    third Loan Examiner to resolve such dispute. The Loan Examiner appointed in
    accordance with this Section 5.(f) (the "INTERIM APPOINTED EXAMINER") shall
    make his or her decision in accordance with the Standards. The decision of
    the Interim Appointed Examiner shall be final and binding on Cowlitz Bank
    and the Committee. The fees of the Interim Appointed Examiner (and the fees,
    if any, of the Loan Examiners appointed pursuant to (i) and (ii) above)
    shall be paid one-half by Cowlitz Bank, from its own funds, and the
    remaining one-half shall be paid, first, from the Interest and second, from
    the Escrowed Funds. Upon resolution of the dispute, the Committee shall
    deliver Joint Instructions to the Escrow Agent with respect thereto, after
    which the Escrow Agent shall immediately pay such portion of the Escrowed
    Funds which related to such dispute in accordance with the Joint
    Instructions.

                                      F-7
<PAGE>
        g.  If at any time prior to the Escrow Expiration Date the Escrowed
    Funds shall be insufficient to comply with a Joint Instruction or Court
    Order, the Escrow Agent shall: (i) pay to the Exchange Agent the Interest
    (after payment of all expenses payable out of the Interest in accordance
    with this Agreement), for distribution by the Exchange Agent to the Escrow
    Stockholders in accordance with Section 3.2.(b) of the Merger Agreement;
    (ii) pay the entire Escrowed Funds to Cowlitz Bank; and (iii) advise Cowlitz
    Bank and the Committee in writing of the amount of such payments.

        h.  The Threshold Amount of an Identified Loan shall be subject to
    adjustment from time to time. In the event that Cowlitz Bank suffers with
    respect to an Identified Loan any loss described in clauses (ii) or
    (iii) in Section 5.(a) or in clauses (ii), (iii) or (iv) in Section 7.(b),
    then the Threshold Amount for such Identified Loan will be reduced by the
    amount of such loss but in no event will the Threshold Amount be less than
    $0. By way of example, if an Identified Loan has a Threshold Amount of
    $1,000 and such Identified Loan is then written down by $600, Cowlitz Bank
    would be entitled to no payment out of the Escrow Fund because the amount of
    the write-down did not exceed the Threshold Amount. However, as a result of
    the write-down, the Threshold Amount would be adjusted to $400. If Cowlitz
    Bank subsequently took another write-down of $700 on such Identified Loan,
    Cowlitz Bank would be entitled to receive $300 out of the Escrow and the
    Threshold Amount would be adjusted to $0.

    6.  RECOVERY BY COWLITZ BANK.

        a.  If at any time prior to the Escrow Expiration Date, Cowlitz Bank
    recovers any payment with respect to a Reimbursable Loss for which Cowlitz
    Bank had previously received payment therefor from the Escrowed Funds (a
    "RECOVERED AMOUNT"), then within ten (10) business days after receipt of
    such Recovered Amount, Cowlitz Bank shall deliver to the Escrow Agent an
    amount in cash equal to such Recovered Amount, plus interest thereon from
    the period starting on the date Cowlitz Bank had previously received the
    original payment from the Escrowed Funds with respect to such Reimbursable
    Loss through the date such Recovered Amount was received by it, to be held
    in escrow as part of the Escrowed Funds hereunder (it being understood and
    agreed that such interest shall be deemed to be part of the Interest held in
    escrow hereunder). The interest rate applicable to a Recovered Amount shall
    be equal to the average interest rate in effect with respect to the Escrowed
    Funds during such period.

        b.  If at any time after the Escrow Expiration Date, Cowlitz Bank
    receives any Recovered Amount, then such Recovered Amount shall be the sole
    property of Cowlitz Bank, the Northern Members shall have no claim or right
    to such Recovered Amount and Cowlitz Bank shall have no obligations
    whatsoever to the Exchange Agent, Northern Members or Escrow Stockholders
    with respect to such Recovered Amount, including without limitation, any
    obligation to deliver such Recovered Amount to the Escrow Agent hereunder.

    7.  FINAL RELEASE OF THE ESCROWED FUNDS.  The Escrowed Funds and the
Interest will be released as of the Escrow Expiration Date as follows:

        a.  No later than thirty (30) days prior to the Escrow Expiration Date,
    Cowlitz Bank shall prepare and deliver to the Committee and the Escrow Agent
    a statement (the "FINAL SETTLEMENT STATEMENT") setting forth all outstanding
    Identified Loans which, as determined by Cowlitz Bank, in accordance with
    the Standards, are classified as Special Mention, Substandard, Doubtful or
    Loss as of the Escrow Expiration Date. The Final Settlement Statement shall
    also set forth Cowlitz Bank's good faith estimate of the Final Loss Amount
    and the Additional Expenses which have not been previously reimbursed to
    Cowlitz Bank from the Escrowed Funds as of the Escrow Expiration Date, if
    any. The "FINAL LOSS AMOUNT" shall be equal to (i) the aggregate Loss
    Amounts for the Identified Loans that Cowlitz Bank (A) has incurred which
    have not been previously reimbursed to

                                      F-8
<PAGE>
    Cowlitz Bank from the Escrowed Funds or (B) reasonably expects to incur
    through and after the Escrow Expiration Date, less (ii) the Aggregate Unused
    Final Threshold Amount.

        b.  For purposes of the Final Settlement Statement, a Reimbursable Loss
    related to an Identified Loan shall be deemed to occur if, as of the Escrow
    Expiration Date: (i) Cowlitz Bank, in accordance with the Standards,
    determines that an additional specific reserve is necessary for such
    Identified Loan (regardless of whether such Identified Loan is in default);
    (ii) Cowlitz Bank, in accordance with the Standards, determines that the
    value of such Identified Loan should be written down on the books of Cowlitz
    Bank (regardless of whether such Identified Loan is in default);
    (iii) Cowlitz Bank suffers a loss as a result of a good faith sale, other
    disposition or payoff of such Identified Loan; (iv) such Identified Loan is
    in default and Cowlitz Bank, in its reasonable judgment, determines that the
    collateral securing such Identified Loan is inadequate; or (v) such
    Identified Loan is in default for 90 days or more and after using
    commercially reasonable efforts to obtain payment on such Identified Loan,
    Cowlitz Bank, in accordance with the Standards, determines that such
    Identified Loan is classified as Special Mention, Substandard, Doubtful or
    Loss. The Final Settlement Statement shall also include Cowlitz Bank's
    calculation of the Aggregate Unused Final Threshold Amount. The "Unused
    Final Threshold Amount" for an Identified Loan shall mean (i) the Threshold
    Amount (after being adjusted as provided herein) in the case of an
    Identified Loan which has been paid off, has been sold or otherwise has been
    disposed of and (ii) the excess of the Threshold Amount (after being
    adjusted as provided herein) over the specific reserve of the Identified
    Loan. "Aggregate Unused Final Threshold Amount" shall mean the sum of the
    Unused Final Threshold Amount for all Identified Loans (whether or not such
    loans are on the books of Cowlitz Bank as of the Escrow Expiration Date). By
    way of example, assume there are four Identified Loans (Loan A, Loan B, Loan
    C and Loan D, respectively), each with an initial threshold Amount of $1000.
    Loan A has been disposed of with a loss of $1500. Its Threshold Amount is $0
    and Cowlitz Bank has been reimbursed $500 out of the Escrow Fund. Loan B has
    been disposed of with a loss of $500. Its Threshold Amount has been adjusted
    to $500 and Cowlitz Bank received no reimbursement from the Escrow Fund.
    Loan C has a specific reserve of $1000, but Cowlitz Bank determines that an
    addition of $1200 to the reserve is required. Loan D has a specific reserve
    of $1000, but Cowlitz Bank determines that a specific reserve of $600 is
    sufficient. Loan A has an Unused Final Threshold Amount of $0; Loan B has an
    Unused Final Threshold Amount of $500; Loan C has an Unused Final Threshold
    Amount of $0; and Loan D has an Unused Final Threshold Amount of $400. The
    Final Settlement Statement would indicate a Loss Amount of $1200 for Loan C.
    The Aggregate Unused Final Threshold Amount would be $900. Accordingly, the
    Final Loss Amount would equal $300 (the sum of the Loss Amounts less the
    Aggregate Unused Final Threshold Amount).

        c.  Concurrently with delivery of the Final Settlement Statement,
    Cowlitz Bank shall also deliver written notice (the "FINAL MEETING NOTICE")
    to convene a meeting of the Committee to discuss the Final Settlement
    Statement (the "FINAL MEETING") on a date no earlier than five (5) business
    days after the date of such Final Meeting Notice. After receipt of the Final
    Meeting Notice, each Committee Member shall promptly communicate to Cowlitz
    Bank such Committee Member's availability on the meeting date specified in
    the Final Meeting Notice and his or her availability during the seven
    (7) calendar days following such meeting date. Upon Cowlitz Bank's
    determination of a time, date and location for such Final Committee Meeting
    which is acceptable to all four (4) Committee Members, Cowlitz Bank shall
    promptly give written confirmation thereof to each Committee Member;
    PROVIDED, HOWEVER, that if such date is beyond the seventh (7th) calendar
    day (the "FINAL MEETING DEADLINE DATE") following the initial meeting date
    specified in the Final Meeting Notice, then if Cowlitz Bank determines that
    there is a date on or prior to the Final Meeting Deadline Date on which
    three (3) Committee Members are able to participate, Cowlitz Bank shall have
    the right to set such Final Committee Meeting on such earlier date, even
    though all Committee Members may be unable to participate on such date.
    Notwithstanding the foregoing,

                                      F-9
<PAGE>
    if at the Final Committee Meeting, neither Northern Committee Member is
    present, then the Committee shall adjourn and Cowlitz Bank shall set a
    second Final Committee Meeting date as soon as possible after the adjourned
    meeting using the procedure set forth in the preceding sentence; PROVIDED,
    HOWEVER, that if neither Northern Committee Member is present at such second
    Final Committee Meeting, then two (2) Committee Members shall constitute a
    quorum for purposes of the Final Committee Meeting, action may be taken at
    such meeting by an affirmative vote of the two (2) Committee Members present
    and Joint Instructions may be executed by the two (2) Committee Members
    present.

        d.  At the Final Meeting, the Committee shall determine, in accordance
    with the Standards, the Final Loss Amount and upon such determination, the
    Committee shall deliver Joint Instructions to the Escrow Agent with respect
    thereto. In making its determination of the Final Loss Amount, the Committee
    shall have the discretion to determine, in accordance with the Standards,
    the applicable classification of each Identified Loan and the estimated net
    amount anticipated to be received by Cowlitz Bank upon the sale of any
    collateral securing such Identified Loan. The Escrow Agent shall,
    immediately upon receipt of such Joint Instructions:

           (i) retain for its own account an amount equal to the accrued and
       unpaid fees of the Escrow Agent through the Termination Date, first, from
       the Interest and second, from the Escrowed Funds;

           (ii) deliver $1,000 from the remaining Interest, if any, to each
       Northern Member as compensation for his or her service on the Committee
       for the year ending on the Escrow Expiration Date, PROVIDED that such
       Northern Member is serving on the Committee on such date, and PROVIDED
       FURTHER that if the remaining Interest is not sufficient to make such
       payment, the amount available from the remaining Interest shall be
       divided equally between the Northern Members entitled to payment;

           (iii) deliver a portion of the remaining Interest, if any, to each
       Northern Member equal to the Meeting Expenses, if any, incurred by such
       Northern Member;

           (iv) deliver a portion of the Escrowed Funds to Cowlitz Bank equal to
       the Final Loss Amount as set forth in such Joint Instructions; and

           (v) deliver to the Exchange Agent the remaining balance of the
       Escrowed Funds and the Interest (after (i) through (iv) above have been
       deducted or retained therefrom), if any, for distribution by the Exchange
       Agent to the Escrow Stockholders in accordance with Section 3.2.(b) of
       the Merger Agreement.

        e.  If the Committee is unable to make such determination after meeting
    for one (1) day, the Committee shall (i) deliver written notice (the "FINAL
    DISPUTE NOTICE") of the disputed Final Loss Amount (as set forth in the
    Meeting Notice for the Final Meeting) to the Escrow Agent and (ii) appoint a
    Loan Examiner to resolve such dispute. If after one (1) day, the Committee
    is unable to agree on a Loan Examiner, then (A) the Northern Members shall
    jointly appoint a Loan Examiner, (B) the Cowlitz Bank Members shall jointly
    appoint a Loan Examiner, and (C) such appointed Loan Examiners shall jointly
    appoint a third Loan Examiner to resolve such dispute. The Loan Examiner
    appointed in accordance with this Section 7.(e) (the "FINAL APPOINTED
    EXAMINER") shall make his or decision in accordance with the Standards. The
    decision of the Final Appointed Examiner shall be final and binding on
    Cowlitz Bank and the Committee. The fees of the Final Appointed Examiner
    (and the fees, if any, of the Loan Examiners appointed pursuant to (A) and
    (B) above) shall be paid one-half by Cowlitz Bank, from its own funds, and
    the remaining one-half shall be paid, first, from the Interest and second,
    from the Escrowed Funds. Upon resolution of the dispute, the Committee shall
    deliver Joint Instructions to the Escrow Agent.

                                      F-10
<PAGE>
        f.  In the event the Escrow Agent receives a Final Dispute Notice from
    the Committee, then the Escrow Agent shall retain custody of a portion of
    the Escrowed Funds equal to the Final Loss Amount as set forth in the Final
    Dispute Notice until the first to occur of the following:

           (i) receipt by the Escrow Agent of Joint Instructions resolving such
       dispute; or

           (ii) receipt by the Escrow Agent of a Court Order resolving such
       dispute and directing disposition of such portion of the Escrowed Funds;

    after which the Escrow Agent shall immediately:

           (iii) retain for its own account an amount equal to the accrued and
       unpaid fees of the Escrow Agent through the Termination Date, first, from
       the Interest and second, from the Escrowed Funds;

           (iv) deliver $1,000 from the remaining Interest, if any, to each
       Northern Member as compensation for his or her service on the Committee
       for the year ending on the Escrow Expiration Date, PROVIDED that such
       Northern Member is serving on the Committee on such date, and PROVIDED
       FURTHER that if the remaining Interest is not sufficient to make such
       payment, the amount available from the remaining Interest shall be
       divided equally between the Northern Members entitled to payment;

           (v) deliver a portion of the remaining Interest, if any, to each
       Northern Member equal to the Meeting Expenses, if any, incurred by such
       Northern Member;

           (vi) deliver a portion of the Escrowed Funds to Cowlitz Bank equal to
       the Final Loss Amount as set forth in such Joint Instructions or Court
       Order, as the case may be; and

           (vii) deliver to the Exchange Agent the remaining balance of the
       Escrowed Funds and the Interest (after (iii) through (vi) above have been
       deducted or retained therefrom), if any, for distribution by the Exchange
       Agent to the Escrow Stockholders in accordance with Section 3.2.(b) of
       the Merger Agreement.

        g.  If at the Escrow Expiration Date, the Escrowed Funds shall be
    insufficient to comply with such Joint Instructions or Court Order, as the
    case may be, the Escrow Agent shall make payments in the order set forth in
    (d) or (f) above, as the case may be, to the extent such payments can be
    made in accordance therewith, and advise Cowlitz Bank and the Committee in
    writing of the amounts of each such payment made.

    8.  TERMINATION.  This Agreement will terminate upon the later to occur of
(i) the Escrow Expiration Date or (ii) release of all of the Escrowed Funds and
the Interest by the Escrow Agent as provided in this Agreement (the "TERMINATION
DATE").

    9.  DUTY AND LIABILITY OF THE ESCROW AGENT.

        a.  The sole duty of the Escrow Agent, other than as herein specified,
    shall be to receive the Escrowed Funds and hold them subject to release in
    accordance with the terms of this Agreement. The Escrow Agent's rights,
    duties and obligations are strictly limited to those expressly set forth in
    this Agreement and the Escrow Agent shall be under no implied obligations
    nor subject to take notice of any defaults or any other matter, nor be bound
    nor required to give notice on demand, nor required to take any action
    whatever except as herein expressly provided. The Escrow Agent shall not be
    liable for any loss or damage unless caused by its own gross negligence, bad
    faith or willful misconduct.

        b.  The Escrow Agent may conclusively rely upon and shall be protected
    in acting upon any statement, certificate, notice, request, consent, order
    or other document believed by it to be genuine and to have been signed or
    presented by the proper party or parties. The Escrow Agent

                                      F-11
<PAGE>
    shall have no duty or liability to verify any such statement, certificate,
    notice, request, consent, order or other document and its sole
    responsibility shall be to act only as expressly set forth in this
    Agreement. The Escrow Agent shall be under no obligation to institute or
    defend any action, suit or proceeding in connection with this Agreement. The
    Escrow Agent may consult counsel in respect of any question arising under
    this Agreement, and the Escrow Agent shall not be liable for any action
    taken or omitted in good faith upon advice of such counsel.

        c.  The Northern Members and Cowlitz Bank jointly and severally agree to
    indemnify and hold harmless the Escrow Agent from loss, damage or any loss
    made against the Escrow Agent arising out of or relating to this Agreement,
    such indemnification to include all costs and expenses incurred by the
    Escrow Agent, including but not limited to reasonable attorneys' fees;
    PROVIDED, HOWEVER, that such indemnification shall not include losses
    against the Escrow Agent which are occasioned by gross negligence, bad faith
    or willful misconduct; PROVIDED, FURTHER, that the indemnification
    obligations of the Northern Members hereunder shall be limited to the
    Interest and the Escrowed Funds.

        d.  The Escrow Agent may conclusively rely on Joint Instructions as to
    the disposition of funds, assets, documents, or other property held in
    escrow.

    10.  ESCROW AGENT'S FEE AND EXPENSES.

        a.  The fees of the Escrow Agent, which are set forth in Schedule 3
    attached hereto, shall be paid first, from the Interest and, second, from
    the Escrowed Funds. The fee for services rendered hereunder is intended as
    full compensation for the Escrow Agent's services as contemplated by this
    Agreement. In addition, Cowlitz Bank, out if its own funds, agrees to pay
    one-half of the Escrow Agent's reasonable expenses and disbursements,
    including, but not limited to, the actual cost of legal services should the
    Escrow Agent deem it necessary to retain an attorney, and the remaining
    one-half shall be paid, first, from the Interest and, second, from the
    Escrowed Funds. Should litigation instituted by or against any of the
    parties require additional duties of the Escrow Agent or appearance in
    court, the Escrow Agent shall be reimbursed by the nonprevailing party for
    its services and for its expenses incurred therein, or in the event such
    litigation is settled, as agreed among the parties.

        b.  If any controversy arises between the parties hereto or with any
    third person, the Escrow Agent shall not be required to resolve the same or
    to take any action to do so but may, at its discretion, institute such
    interpleader or other proceedings as it deems proper. Any costs and
    expenses, including reasonable counsel fees incurred by the Escrow Agent in
    connection with such dispute, shall be paid by the nonprevailing party or as
    otherwise agreed by the parties.

    11.  BINDING AGREEMENT AND SUBSTITUTION OF ESCROW AGENT.  The terms and
conditions of this Agreement shall be binding on the heirs, executors and
assigns, creditors, transferees, or successors in interest of the parties
hereto, regardless of whether such interest is obtained by operation of law or
otherwise, including without limitation by consolidation, transfer, assignment
or merger. Any corporation into which the Escrow Agent may merge, sell, or
transfer its escrow business shall automatically be and become successor Escrow
Agent hereunder, vested with all powers as was its predecessor without the
execution or filing of any instruments, or any further act, deed, or conveyance
on the part of the parties hereto. If, for any reason, the Escrow Agent named
herein should be unable or unwilling to continue to serve as such Escrow Agent,
the Escrow Agent shall give the Northern Members and Cowlitz Bank thirty
(30) days prior written notice thereof. Upon the effective date of such
resignation, the Escrow Agent shall have no further duties or obligations
hereunder. The Northern Members and Cowlitz Bank shall within that thirty
(30) days appoint another escrow agent by a writing signed by the Northern
Members and Cowlitz Bank, a copy of which shall be delivered to the withdrawing
Escrow Agent. If the Escrow Agent is not notified within thirty (30) days of a
successor Escrow Agent then the Escrow Agent shall be entitled to transfer all
of the Escrowed Funds to a court

                                      F-12
<PAGE>
of competent jurisdiction with a request to have a successor appointed. The
Escrow Agent shall promptly thereafter execute all documents necessary to
transfer the Escrowed Funds to the substitute escrow agent.

    12.  GENERAL.

        a.  MODIFICATION.  No waiver or modification of this Agreement shall be
    valid unless in writing and duly executed by all parties hereto. No evidence
    of any waiver or modification shall be offered or received in evidence in
    any proceedings, arbitration, or litigation between any of the parties
    arising out of or affecting this Agreement, or the rights or obligations of
    the parties hereunder, unless such waiver or modification is in writing and
    duly executed by all parties hereto. The parties further agree that the
    provisions of this Section 12.(a) may not be waived except as set forth
    herein.

        b.  NO WAIVER.  Failure or delay on the part of any party in exercising
    any rights, power or privileges under this Agreement shall not be deemed a
    waiver of any exercise of any right, power or privilege of such party.

        c.  BINDING EFFECT; ASSIGNMENT.  This Agreement shall be binding upon
    and inure to the benefit of the parties and their respective successors and
    assigns.

        d.  NOTICES.  All notices, demands and other communications called for
    or required by this Agreement shall be in writing and shall be addressed to
    the parties at their respective addresses stated below or to such other
    address as a party may subsequently designate by ten days' advance written
    notice to the other parties. Communications hereunder shall be deemed to
    have been received (i) upon delivery in person, (ii) five days after mailing
    it by certified mail, return receipt requested and postage prepaid,
    (iii) the second business day after depositing it with a commercial
    overnight carrier which provides written verification of delivery or
    (iv) the day of transmission by telefacsimile if sent before 2:00 p.m.
    recipient's time (or if the day of transmittal is not a business day for the
    recipient, the next business day), provided that a copy of such notice is
    sent on the same day by certified mail, return receipt requested and postage
    prepaid, with an indication that the original was sent by facsimile and the
    date of its transmittal.

<TABLE>
<S>                                    <C>
To Cowlitz or Cowlitz Bank:            Cowlitz Bancorporation
                                       Attention: President
                                       927 Commerce Avenue
                                       Longview, WA 98632
                                       Phone: (360) 423-9800
                                       Fax: (360) 423-5461

To the Cowlitz Bank Members:           Cowlitz Bancorporation
                                       Attention:             and
                                       927 Commerce Avenue
                                       Longview, WA 98632
                                       Phone: (360) 423-9800
                                       Fax: (360) 423-5461

in each case with a copy to:           Heller Ehrman White & McAuliffe
                                       Attention: Bernard L. Russell
                                       6100 Columbia Center
                                       701 Fifth Avenue
                                       Seattle, WA 98104
                                       Phone: (206) 447-0900
                                       Fax: (206) 447-0849
</TABLE>

                                      F-13
<PAGE>
<TABLE>
<S>                                    <C>
To the Northern Members:               -------------------         -------------------
                                       -------------------         -------------------
                                       -------------------         -------------------
                                       Phone: -------------         Phone: -------------
                                       Fax: ---------------         Fax: ---------------

with a copy to:                        Davis Wright Tremaine LLP
                                       Attention: David C. Baca
                                       Suite 2300
                                       1300 SW Fifth Avenue
                                       Portland, OR 97201
                                       Phone: (503) 778-5306
                                       Fax: (503) 778-5299

To the Escrow Agent:                   -------------------
                                       -------------------
                                       -------------------
                                       Phone: -------------
                                       Fax: ---------------
</TABLE>

        e.  FULL UNDERSTANDING. In executing this Agreement, each party fully,
    completely, and unconditionally acknowledges and agrees that it (a) has had
    an equal opportunity to participate in drafting this Agreement, (b) has
    consulted with, and had the advice and counsel of a duly licensed and
    competent attorney and that it has executed this Agreement after independent
    investigation, voluntarily and without fraud, duress, or undue influence,
    (c) expressly consents that this Agreement be given full force and effect
    according to each and every of its express terms and provisions and
    (d) agrees that no ambiguity shall be construed against any party based upon
    a claim that such party drafted the applicable language.

        f.  ENTIRE AGREEMENT. This Agreement and the Merger Agreement contain
    all of the terms and conditions agreed upon by the parties relating to the
    subject matter hereof and supersede and cancel all other prior agreements,
    negotiations, correspondence, undertakings, communications and
    understandings of the parties, whether written or oral, respecting that
    subject matter.

        g.  CAPTIONS AND CONSTRUCTION. Captions in this Agreement are for the
    convenience of the reader and are not to be considered in the interpretation
    of the terms.

        h.  SEVERABILITY. If any one or more of the provisions of this
    Agreement, or the applicability of any such provision to a specific
    situation, shall be held invalid or unenforceable, such provision shall be
    modified to the minimum extent necessary to make it or its application valid
    and enforceable, and the validity and enforceability of all other provisions
    of this Agreement and all other applications of any such provision shall not
    be affected thereby.

        i.  GOVERNING LAW. This Agreement shall be governed by the laws of the
    State of       , without regard to its conflicts of law principles.

        j.  COUNTERPARTS. This Agreement may be executed in one or more
    counterparts, all of which shall be considered one and the same agreement,
    and shall become a binding agreement when one or more counterparts have been
    signed by each of the parties and either original or facsimile counterparts
    have been delivered to the other party.

                                      F-14
<PAGE>
    IN WITNESS WHEREOF, the parties hereto have entered into and signed this
Agreement as of the date and year first written above.

                                         --------------------------------------,
                                          as Escrow Agent

                                          By
                                          --------------------------------------
                                          Its
                                          --------------------------------------

                                          COWLITZ BANCORPORATION
                                          By
                                          --------------------------------------
                                          Its
                                          --------------------------------------

                                          COWLITZ BANK
                                          By
                                          --------------------------------------
                                          Its
                                          --------------------------------------

                                          NORTHERN BANK OF COMMERCE
                                          By
                                          --------------------------------------
                                          Its
                                          --------------------------------------

                                      F-15
<PAGE>
                                   SCHEDULE 1
                                CLASSIFICATIONS

<TABLE>
<CAPTION>
CLASSIFICATION                         DESCRIPTION
--------------                         -----------
<S>                                    <C>
Special Mention......................  Marginally acceptable business credit; some potential
                                       weakness. Generally undesirable business constituting an
                                       undue and unwarranted credit risk but not to the point of
                                       justifying a Substandard classification. While the asset is
                                       currently protected, it is potentially weak. No loss of
                                       principal or interest is envisioned. Potential weaknesses
                                       might include a weakening financial condition, an
                                       unrealistic repayment program, inadequate sources of funds,
                                       or lack of adequate collateral, credit information, or
                                       documentation. Company is undistinguished and mediocre.

Substandard..........................  Unacceptable business credit, normal repayment in jeopardy.
                                       While no loss of principal or interest is envisioned, there
                                       is a positive and well-defined weakness which jeopardizes
                                       collection of debt. The asset is inadequately protected by
                                       the current sound net worth and paying capacity of the
                                       obligor or pledged collateral. There may already have been a
                                       partial loss of interest.

Doubtful.............................  Full payment questionable. Serious problems exist to the
                                       point where a partial loss of principal is likely.
                                       Weaknesses are so pronounced that on the basis of current
                                       information, conditions and values, collection is highly
                                       improbable.

Loss.................................  Expected total loss. An uncollectible asset or one of such
                                       little value it does not warrant classification as an active
                                       asset. Such an asset may, however, have recovery or salvage
                                       value, but not to the point where a write-off should be
                                       deferred, even though a partial recovery may occur in the
                                       future.
</TABLE>

                                      F-16
<PAGE>
                                   APPENDIX G
        THE TRANSFER OF THIS AGREEMENT IS SUBJECT TO CERTAIN PROVISIONS
        CONTAINED HEREIN AND TO RESALE RESTRICTIONS UNDER THE SECURITIES
                            ACT OF 1933, AS AMENDED

    STOCK OPTION AGREEMENT, dated September 14, 1999, between Northern Bank of
Commerce, a corporation chartered under the banking laws of the State of Oregon
("ISSUER"), and Cowlitz Bancorporation, a Washington corporation ("GRANTEE").

                                  WITNESSETH:

    WHEREAS, Grantee, Issuer and Cowlitz Bank have entered into an Agreement and
Plan of Merger of even date herewith (the "MERGER AGREEMENT"), which agreement
has been executed by the parties hereto immediately prior to this Stock Option
Agreement (this "AGREEMENT"); and

    WHEREAS, as a condition to Grantee's entering into the Merger Agreement and
in consideration therefor, Issuer has agreed to grant Grantee the Option (as
hereinafter defined);

    NOW, THEREFORE, in consideration of the foregoing and the mutual covenants
and agreements set forth herein and in the Merger Agreement, the parties hereto
agree as follows:

    1.  GRANT OF OPTION.

        (a) Issuer hereby grants to Grantee an unconditional, irrevocable option
    (the "OPTION") to purchase, subject to the terms hereof, up to an aggregate
    of 243,893 fully paid and nonassessable shares of Issuer's Common Stock, par
    value $1.00 per share ("COMMON STOCK"), at a price of $4.625 per share (the
    "OPTION PRICE"); provided, however, that in no event shall the number of
    shares of Common Stock for which this Option is exercisable exceed 19.9% of
    the Issuer's issued and outstanding shares of Common Stock without giving
    effect to any shares subject to or issued pursuant to the Option. The number
    of shares of Common Stock that may be received upon the exercise of the
    Option and the Option Price are subject to adjustment as herein set forth.

        (b) In the event that any shares of Common Stock are either (i) issued
    or otherwise become outstanding after the date of this Agreement (other than
    pursuant to this Agreement and other than pursuant to an event described in
    Section 5 hereof) or (ii) redeemed, repurchased, retired or otherwise cease
    to be outstanding after the date of this Agreement, the number of shares of
    Common Stock subject to the Option shall be increased or decreased, as
    appropriate, so that, after such issuance or such redemption, repurchase,
    retirement or other action, such number equals 19.9% of the number of shares
    of Common Stock then issued and outstanding without giving effect to any
    shares subject to or issued pursuant to the Option. Nothing contained in
    this Section 1(b) or elsewhere in this Agreement shall be deemed to
    authorize Issuer or Grantee to issue, redeem, repurchase or retire shares in
    breach of any provision of the Merger Agreement.

    2.  EXERCISE OF OPTION.

        (a) The Holder (as hereinafter defined) may exercise the Option, in
    whole or part, and from time to time, if both an Initial Triggering Event
    (as hereinafter defined) and a Subsequent Triggering Event (as hereinafter
    defined) shall have occurred prior to the occurrence of an Exercise
    Termination Event (as hereinafter defined); provided, that the Holder shall
    have sent written notice of such exercise (as provided in subsection (e) of
    this Section 2) within 90 days following such Subsequent Triggering Event
    (or such longer period as provided in Section 10); provided further,
    however, that if the Option cannot be exercised on any day because of any
    injunction, order or similar restraint issued by a court of competent
    jurisdiction, the period during which the Option may be exercised shall be
    extended so that the Option shall expire no earlier than on the tenth
    business day after such injunction, order or restraint shall have been
    dissolved or

                                      G-1
<PAGE>
    when such injunction, order or restraint shall have become permanent and no
    longer subject to appeal, as the case may be. Each of the following shall be
    an "EXERCISE TERMINATION EVENT": (i) the Effective Time (as defined in the
    Merger Agreement); (ii) termination of the Merger Agreement in accordance
    with the provisions thereof if such termination occurs prior to the
    occurrence of an Initial Triggering Event, except a termination by Grantee
    pursuant to Section 9.1(d) of the Merger Agreement (unless the breach by
    Issuer giving rise to such right of termination is non-volitional);
    (iii) the passage of 12 months after termination of the Merger Agreement if
    such termination follows the occurrence of an Initial Triggering Event or is
    a termination by Grantee pursuant to Section 9.1(d) of the Merger Agreement
    (unless the breach by Issuer giving rise to such right of termination is
    non-volitional); provided, that if the Initial Triggering Event continues or
    occurs beyond such termination and prior to the passage of such 12-month
    period, the Exercise Termination Event shall be 12 months from the
    expiration of the Last Triggering Event (as hereinafter defined) but in no
    event more than 18 months after such termination; or (iv) delivery of a
    written request for payment of termination fees pursuant to Section 9.2 of
    the Merger Agreement (provided that no such Exercise Termination Event shall
    be deemed to have occurred unless such termination fees and any
    reimbursement amounts are paid in accordance with such Section 9.2). For
    purposes of this Agreement, (A) "HOLDER" shall mean the holder or holders of
    the Option and (B) "Last Triggering Event" shall mean the last Initial
    Triggering Event to expire. Notwithstanding anything to the contrary herein,
    (i) the Option may not be exercised at any time when Grantee shall be in
    breach of any of its representations, warranties, covenants or agreements
    contained in the Merger Agreement such that Issuer would be entitled to
    terminate the Merger Agreement pursuant to Section 9.1(d) thereof and
    (ii) this Agreement shall automatically terminate upon the termination of
    the Merger Agreement pursuant to Section 9.1(d) thereof as a result of the
    breach by Grantee of its representations, warranties, covenants or
    agreements contained in the Merger Agreement.

        (b) The term "INITIAL TRIGGERING EVENT" shall mean any of the following
    events or transactions occurring after the date hereof:

           (i) Issuer or any of its Significant Subsidiaries, as defined in
       Rule 1-02 of Regulation S-X promulgated by the Securities and Exchange
       Commission (each an "ISSUER SUBSIDIARY"), without having received
       Grantee's prior written consent, shall have entered into an agreement to
       engage in an Acquisition Transaction (as hereinafter defined) with any
       person (the term "person" for purposes of this Agreement having the
       meaning assigned thereto in Sections 3(a)(9) and 13(d)(3) of the
       Securities Exchange Act of 1934, as amended (the "1934 ACT"), and the
       rules and regulations thereunder) other than Grantee or any of its
       Subsidiaries (each a "GRANTEE SUBSIDIARY") or the Board of Directors of
       Issuer shall have recommended that the stockholders of Issuer approve or
       accept any Acquisition Transaction with any person other than Grantee or
       a Subsidiary of Grantee. For purposes of this Agreement, "ACQUISITION
       TRANSACTION" shall mean (x) a merger or consolidation, or any similar
       transaction, involving Issuer or any Issuer Subsidiary, (y) a purchase,
       lease or other acquisition or assumption of all or a substantial portion
       of the assets or deposits of Issuer or any Issuer Subsidiary, or (z) a
       purchase or other acquisition (including by way of merger, consolidation,
       share exchange or otherwise) of securities representing 10% or more of
       the voting power of Issuer; provided, however, that in no event shall any
       merger, consolidation, purchase or similar transaction involving only
       Issuer and one or more of Issuer Subsidiaries or involving only two or
       more of Issuer Subsidiaries, be deemed to be an Acquisition Transaction,
       provided that any such transaction is not entered into in violation of
       the terms of the Merger Agreement;

           (ii) (A)  Issuer or any Issuer Subsidiary, without having received
       Grantee's prior written consent, shall have authorized, recommended,
       proposed or publicly announced its intention to authorize, recommend or
       propose, to engage in an Acquisition Transaction with any person

                                      G-2
<PAGE>
       other than Grantee or a Grantee Subsidiary, or (B) the Board of Directors
       of Issuer shall have failed to make its recommendation that the
       stockholders of Issuer approve the transactions contemplated by the
       Merger Agreement, or (C) the Board of Directors of Issuer shall have
       publicly withdrawn or modified, or publicly announced its interest to
       withdraw or modify, in any manner adverse to Grantee, its recommendation
       that the stockholders of Issuer approve the transactions contemplated by
       the Merger Agreement;

          (iii) Any person, other than Grantee, any Grantee Subsidiary or any
       Issuer Subsidiary acting in a fiduciary capacity in the ordinary course
       of its business, shall have acquired beneficial ownership or the right to
       acquire beneficial ownership of 10% or more of the outstanding shares of
       Common Stock, except that the beneficial ownership by Irwin Holtzman and
       his affiliates of up to 15% of the outstanding shares of Common Stock
       shall be excluded from this clause (iii) (the term "BENEFICIAL OWNERSHIP"
       for purposes of this Agreement having the meaning assigned thereto in
       Section 13(d) of the 1934 Act, and the rules and regulations thereunder);

           (iv) After any person other than Grantee or any Grantee Subsidiary
       shall have made a bona fide proposal to Issuer or its stockholders by
       public announcement or written communication that is or becomes the
       subject of public disclosure to engage in an Acquisition Transaction, the
       approval of Issuer's stockholders required by Section 8.1(a) of the
       Merger Agreement is not obtained;

           (v) After an overture is made by a third party to Issuer or its
       stockholders to engage in an Acquisition Transaction (whether such
       overture becomes the subject of public disclosure or not), Issuer shall
       have willfully breached any covenant or obligation contained in the
       Merger Agreement or willfully breached any representation or warranty
       contained in the Merger Agreement and such breach (x) would entitle
       Grantee to terminate the Merger Agreement and (y) shall not have been
       cured prior to the Notice Date (as defined below);

           (vi) Any person other than Grantee or any Grantee Subsidiary, other
       than in connection with a transaction to which Grantee has given its
       prior written consent, shall have filed an application or notice with the
       Federal Deposit Insurance Corporation ("FDIC"), the Federal Reserve
       Board, or other federal or state bank regulatory authority, which
       application or notice has been accepted for processing, for approval to
       engage in an Acquisition Transaction; or

          (vii) Any person other than Grantee or any Grantee Subsidiary
       commences or publicly announces its intention to commence a tender offer
       or exchange offer for securities representing 10% or more of the voting
       power of Issuer.

        (c) The term "SUBSEQUENT TRIGGERING EVENT" shall mean either of the
    following events or transactions occurring after the date hereof:

           (i) The acquisition by any person of beneficial ownership of 25% or
       more of the then outstanding shares of Common Stock; or

           (ii) The occurrence of the Initial Triggering Event described in
       Section 2(b)(i) hereof, except that the percentage referred to in
       subsection (z) thereof shall be 25%.

        (d) Issuer shall notify Grantee promptly in writing of the occurrence of
    any Initial Triggering Event or Subsequent Triggering Event of which it has
    notice, it being understood that the giving of such notice by Issuer shall
    not be a condition to the right of the Holder to exercise the Option.

        (e) In the event the Holder is entitled to and wishes to exercise the
    Option, it shall send to Issuer a written notice (the date of which being
    herein referred to as the "NOTICE DATE") specifying (i) the total number of
    shares it will purchase pursuant to such exercise and (ii) a place and date
    not earlier than three business days nor later than 60 business days from
    the Notice Date for the

                                      G-3
<PAGE>
    closing of such purchase (the "CLOSING DATE"); provided that if prior
    notification to or approval of any regulatory or antitrust agency is
    required in connection with such purchase, the Holder shall promptly file
    the required notice or application for approval, shall promptly notify
    Issuer of such filing and shall expeditiously process the same and the
    period of time that otherwise would run pursuant to this sentence shall run
    instead from the date on which any required notification periods have
    expired or been terminated or such approvals have been obtained and any
    requisite waiting period or periods shall have passed. Any exercise of the
    Option shall be deemed to occur on the Notice Date relating thereto.

        (f) At the closing referred to in subsection (e) of this Section 2, the
    Holder shall pay to Issuer the aggregate purchase price for the shares of
    Common Stock purchased pursuant to the exercise of the Option in immediately
    available funds by wire transfer to a bank account designated by Issuer,
    provided that failure or refusal of Issuer to designate such a bank account
    shall not preclude the Holder from exercising the Option.

        (g) At such closing, simultaneously with the delivery of immediately
    available funds as provided in subsection (f) of this Section 2, Issuer
    shall deliver to the Holder a certificate or certificates representing the
    number of shares of Common Stock purchased by the Holder and, if the Option
    should be exercised in part only, a new Agreement for an Option evidencing
    the rights of the Holder thereof to purchase the balance of the shares
    purchasable hereunder, and the Holder shall deliver to Issuer this Agreement
    and a letter agreeing that the Holder will not offer to sell or otherwise
    dispose of such shares in violation of applicable law or the provisions of
    this Agreement.

        (h) Upon the giving by the Holder to Issuer of the written notice of
    exercise of the Option provided for under subsection (e) of this Section 2
    and the tender of the applicable purchase price in immediately available
    funds, the Holder shall be deemed to be the holder of record of the shares
    of Common Stock issuable upon such exercise, notwithstanding that the stock
    transfer books of Issuer shall then be closed or that certificates
    representing such shares of Common Stock shall not then be actually
    delivered to the Holder. Issuer shall pay all expenses, and any and all
    United States federal, state and local taxes and other charges that may be
    payable in connection with the preparation, issue and delivery of stock
    certificates under this Section 2 in the name of the Holder or its assignee,
    transferee or designee.

    3.  CERTAIN ISSUER ACTIONS.  Issuer agrees: (i) that it shall at all times
maintain, free from preemptive rights, sufficient authorized but unissued or
treasury shares of Common Stock so that the Option may be exercised without
additional authorization of Common Stock after giving effect to all other
options, warrants, convertible securities and other rights to purchase Common
Stock; (ii) that it will not, by charter amendment or through reorganization,
consolidation, merger, dissolution or sale of assets, or by any other voluntary
act, avoid or seek to avoid the observance or performance of any of the
covenants, stipulations or conditions to be observed or performed hereunder by
Issuer; (iii) promptly to take all action as may from time to time be required
(including (x) complying with all premerger notification, reporting and waiting
period requirements specified in 15 U.S.C. Section 18a and regulations
promulgated thereunder and (y) in the event, under any federal or state law or
regulation, prior approval of or notice to any regulatory authority is necessary
before the Option may be exercised, cooperating fully with the Holder in
preparing such applications or notices and providing such information to such
regulatory authority as they may require) in order to permit the Holder to
exercise the Option and Issuer duly and effectively to issue shares of Common
Stock pursuant hereto; and (iv) promptly to take all action provided herein to
protect the rights of the Holder against dilution.

    4.  EXCHANGE.  This Agreement (and the Option granted hereby) are
exchangeable, without expense, at the option of the Holder, upon presentation
and surrender of this Agreement at the principal office of Issuer, for other
Agreements providing for Options of different denominations

                                      G-4
<PAGE>
entitling the holder thereof to purchase, on the same terms and subject to the
same conditions as are set forth herein, in the aggregate the same number of
shares of Common Stock purchasable hereunder. The terms "AGREEMENT" and "OPTION"
as used herein include any Stock Option Agreements and related Options for which
this Agreement (and the Option granted hereby) may be exchanged. Upon receipt by
Issuer of evidence reasonably satisfactory to it of the loss, theft, destruction
or mutilation of this Agreement, and (in the case of loss, theft or destruction)
of reasonably satisfactory indemnification, and upon surrender and cancellation
of this Agreement, if mutilated, Issuer will execute and deliver a new Agreement
of like tenor and date. Any such new Agreement executed and delivered shall
constitute an additional contractual obligation on the part of Issuer, whether
or not the Agreement so lost, stolen, destroyed or mutilated shall at any time
be enforceable by anyone.

    5.  ADJUSTMENT OF SHARES.  In addition to the adjustment in the number of
shares of Common Stock that are purchasable upon exercise of the Option pursuant
to Section 1 of this Agreement, the number of shares of Common Stock purchasable
upon the exercise of the Option and the Option Price shall be subject to
adjustment from time to time as provided in this Section 5. In the event of any
change in, or distributions in respect of, the Common Stock by reason of stock
dividends, split-ups, mergers, recapitalizations, combinations, subdivisions,
conversions, exchanges of shares, distributions on or in respect of the Common
Stock that would be prohibited under the terms of the Merger Agreement, or the
like, the type and number of shares of Common Stock purchasable upon exercise
hereof and the Option Price shall be appropriately adjusted in such manner as
shall fully preserve the economic benefits provided hereunder and proper
provision shall be made in any agreement governing any such transaction to
provide for such proper adjustment and the full satisfaction of Issuer's
obligations hereunder.

    6.  REGISTRATION RIGHTS.  If the Option Shares (as hereinafter defined) are
not exempt from the registration requirements of the Securities Act of 1933, as
amended (the "1933 ACT"), upon the occurrence of a Subsequent Triggering Event
that occurs prior to an Exercise Termination Event, Issuer shall, at the request
of Grantee (whether on its own behalf or on behalf of any subsequent holder of
this Option (or part thereof) or any of the shares of Common Stock issued
pursuant hereto) deliver within six months of such Subsequent Triggering Event
(or such longer period as provided in Section 10), promptly prepare, file and
keep current a shelf registration statement under the 1933 Act covering this
Option and any shares issued and issuable pursuant to this Option and shall use
its reasonable best efforts to cause such registration statement to become
effective and remain current in order to permit the sale or other disposition of
this Option and any shares of Common Stock issued upon total or partial exercise
of this Option ("OPTION SHARES") in accordance with any plan of disposition
requested by Grantee, unless, in the written opinion of securities counsel to
Issuer, addressed to Grantee or any transferee, registration under the 1933 Act
or any other applicable federal or state securities laws is not otherwise
required for the sale and distribution of such Option Shares. Issuer will use
its reasonable best efforts to cause such registration statement first to become
effective and thereafter to remain effective for such period not in excess of
180 days from the day such registration statement first becomes effective or
such shorter time as may be reasonably necessary to effect such sales or other
dispositions. Grantee shall have the right to demand two such registrations. The
foregoing notwithstanding, if, at the time of any request by Grantee for
registration of the Option or Option Shares as provided above, Issuer is in
registration with respect to an underwritten public offering of shares of Common
Stock, and if in the good faith judgment of the managing underwriter or managing
underwriters, or, if none, the sole underwriter or underwriters, of such
offering the inclusion of the Option or Option Shares would interfere with the
successful marketing of the shares of Common Stock offered by Issuer, the number
of Option Shares otherwise to be covered in the registration statement
contemplated hereby may be reduced; provided, however, that after any such
required reduction the number of Option Shares to be included in such offering
for the account of the Holder shall constitute at least 25% of the total number
of shares to be sold by the Holder and Issuer in the aggregate; and provided
further, however, that if such reduction occurs, then Issuer shall file a

                                      G-5
<PAGE>
registration statement for the balance as promptly as practicable and no
reduction shall thereafter occur. Each such Holder shall provide all information
reasonably requested by Issuer for inclusion in any registration statement to be
filed hereunder. If requested by any such Holder in connection with such
registration, Issuer shall become a party to any underwriting agreement relating
to the sale of such shares, but only to the extent of obligating itself in
respect of representations, warranties, indemnities and other agreements
customarily included in secondary offering underwriting agreements for Issuer.

    Upon receiving any request under this Section 6 from any Holder, Issuer
agrees to send a copy thereof to any other person known to Issuer to be entitled
to registration rights under this Section 6, in each case by promptly mailing
the same, postage prepaid, to the address of record of the persons entitled to
receive such copies. Notwithstanding anything to the contrary contained herein,
in no event shall Issuer be obligated to effect more than two registrations
pursuant to this Section 6 by reason of the fact that there shall be more than
one Grantee as a result of any assignment or division of this Agreement.

    7.  REPURCHASE RIGHT.

        (a) (i)  Following the occurrence of a Repurchase Event (as defined
    below), and following a request of the Holder delivered prior to an Exercise
    Termination Event, Issuer (or any successor thereto) shall repurchase the
    Option from the Holder at a price (the "OPTION REPURCHASE PRICE") equal to
    the amount by which (A) the Market/Offer Price (as defined below) exceeds
    (B) the Option Price, multiplied by the number of shares for which this
    Option may then be exercised; and (ii) at the request of the owner of Option
    Shares from time to time (the "OWNER"), delivered within 90 days of such
    occurrence (or such longer period as provided in Section 10), Issuer shall
    repurchase such number of the Option Shares from the Owner as the Owner
    shall designate at a price (the "OPTION SHARE REPURCHASE PRICE") equal to
    the Market/Offer Price multiplied by the number of Option Shares so
    designated.

    The term "MARKET/OFFER PRICE" shall mean the highest of (i) the price per
share of Common Stock at which a tender offer or exchange offer therefor has
been made, (ii) the price per share of Common Stock to be paid by any third
party pursuant to an agreement with Issuer, (iii) the highest closing price for
shares of Common Stock within the six-month period immediately preceding the
date the Holder gives notice of the required repurchase of the Option or the
Owner gives notice of the required repurchase of Option Shares, as the case
maybe, or (iv) in the event of a sale of all or a substantial portion of
Issuer's assets, the sum of the price paid in such sale for such assets and the
current market value of the remaining assets of Issuer as determined by a
nationally recognized investment banking firm selected by the Holder or the
Owner, as the case may be, and reasonably acceptable to Issuer, divided by the
number of shares of Common Stock of Issuer outstanding at the time of such sale.
In determining the Market/Offer Price, the value of consideration other than
cash shall be determined by a nationally recognized investment banking firm
selected by the Holder or the Owner, as the case may be, and reasonably
acceptable to Issuer.

        (b) The Holder or the Owner, as the case may be, may exercise its right
    to require Issuer to repurchase the Option or any Option Shares pursuant to
    this Section 7 by surrendering for such purpose to Issuer, at its principal
    office, this Agreement or certificates for Option Shares, as applicable,
    accompanied by a written notice or notices stating that the Holder or the
    Owner, as the case may be, elects to require Issuer to repurchase the Option
    and/or the Option Shares in accordance with the provisions of this
    Section 7. As promptly as practicable, and in any event within five business
    days after the surrender of the Option and/or certificates representing
    Option Shares and the receipt of such notice or notices relating thereto,
    Issuer shall deliver or cause to be delivered to the Holder the Option
    Repurchase Price and/or to the Owner the Option Share Repurchase Price
    therefor or the portion thereof that Issuer is not then prohibited under
    applicable law and regulation from so delivering.

                                      G-6
<PAGE>
        (c) To the extent that Issuer is prohibited under applicable law or
    regulation from repurchasing the Option and/or the Option Shares in full,
    Issuer shall immediately so notify the Holder and/or the Owner and
    thereafter deliver or cause to be delivered, from time to time, to the
    Holder and/or the Owner, as appropriate, the portion of the Option
    Repurchase Price and the Option Share Repurchase Price, respectively, that
    it is no longer prohibited from delivering, within five business days after
    the date on which Issuer is no longer so prohibited; provided, however, that
    if Issuer at anytime after delivery of a notice of repurchase pursuant to
    subsection (b) of this Section 7 is prohibited under applicable law or
    regulation or through commencement of regulatory enforcement action from
    delivering to the Holder and/or the Owner, as appropriate, the Option
    Repurchase Price and the Option Share Repurchase Price, respectively, in
    full (and Issuer hereby undertakes to use its best efforts to obtain all
    required regulatory and legal approvals and to file any required notices as
    promptly as practicable in order to accomplish such repurchase), the Holder
    or the Owner may revoke its notice of repurchase of the Option or the Option
    Shares either in whole or to the extent of the prohibition, whereupon, in
    the latter case, Issuer shall promptly (i) deliver to the Holder and/or the
    Owner, as appropriate, that portion of the Option Repurchase Price or the
    Option Share Repurchase Price that Issuer is not prohibited from delivering;
    and (ii) deliver, as appropriate, either (A) to the Holder, a new Agreement
    evidencing the right of the Holder to purchase that number of shares of
    Common Stock obtained by multiplying the number of shares of Common Stock
    for which the surrendered Agreement was exercisable at the time of delivery
    of the notice of repurchase by a fraction, the numerator of which is the
    Option Repurchase Price less the portion thereof theretofore delivered to
    the Holder and the denominator of which is the Option Repurchase Price, or
    (B) to the Owner, a certificate for the Option Shares it is then so
    prohibited from repurchasing.

        (d) For purposes of this Section 7, a Repurchase Event shall be deemed
    to have occurred (i) upon the consummation of any merger, consolidation or
    similar transaction involving Issuer or any purchase, lease or other
    acquisition of all or a substantial portion of the assets of Issuer, other
    than any such transaction which would not constitute an Acquisition
    Transaction pursuant to the provisos to the final sentence of
    Section 2(b)(i) hereof or (ii) upon the acquisition by any person of
    beneficial ownership of 50% or more of the then outstanding shares of Common
    Stock, provided that no such event shall constitute a Repurchase Event
    unless a Subsequent Triggering Event shall have occurred prior to an
    Exercise Termination Event.

    8.  SUBSTITUTE OPTION.

        (a) In the event that prior to an Exercise Termination Event, Issuer
    shall enter into an agreement (i) to consolidate with or merge into any
    person, other than Grantee or one of its Subsidiaries, and shall not be the
    continuing or surviving corporation of such consolidation or merger,
    (ii) to permit any person, other than Grantee or one of its Subsidiaries, to
    merge into Issuer and Issuer shall be the continuing or surviving
    corporation, but, in connection with such merger, the then outstanding
    shares of Common Stock shall be changed into or exchanged for stock or other
    securities of any other person or cash or any other property or the then
    outstanding shares of Common Stock shall after such merger represent less
    than 50% of the outstanding voting shares and voting share equivalents of
    the merged company, or (iii) to sell or otherwise transfer all or
    substantially all of its assets to any person, other than Grantee or one of
    its Subsidiaries, then, and in each such case, the agreement governing such
    transaction shall make proper provision so that the Option shall, upon the
    consummation of any such transaction and upon the terms and conditions set
    forth herein, be converted into, or exchanged for, an option (the
    "SUBSTITUTE OPTION"), at the election of the Holder, of either (x) the
    Acquiring Corporation (as hereinafter defined) or (y) any person that
    controls the Acquiring Corporation.

                                      G-7
<PAGE>
        (b) The following terms have the meanings indicated:

           (1) "ACQUIRING CORPORATION" shall mean (i) the continuing or
       surviving corporation of a consolidation or merger with Issuer (if other
       than Issuer), (ii) Issuer in a merger in which Issuer is the continuing
       or surviving person, or (iii) the transferee of all or substantially all
       of Issuer's assets.

           (2) "SUBSTITUTE COMMON STOCK" shall mean the common stock issued by
       the issuer of the Substitute Option upon exercise of the Substitute
       Option.

           (3) "ASSIGNED VALUE" shall mean the Market/Offer Price, as defined in
       Section 7.

           (4) "AVERAGE PRICE" shall mean the average closing price of a share
       of the Substitute Common Stock for the one year immediately preceding the
       consolidation, merger or sale in question, but in no event higher than
       the closing price of the shares of Substitute Common Stock on the day
       preceding such consolidation, merger or sale; provided that if Issuer is
       the issuer of the Substitute Option, the Average Price shall be computed
       with respect to a share of common stock issued by the person merging into
       Issuer or by any company which controls or is controlled by such person,
       as the Holder may elect.

        (c) The Substitute Option shall have the same terms as the Option,
    provided, that if the terms of the Substitute Option cannot, for legal
    reasons, be the same as the Option, such terms shall be as similar as
    possible and in no event less advantageous to the Holder. The issuer of the
    Substitute Option shall also enter into an agreement with the then Holder or
    Holders of the Substitute Option in substantially the same form as this
    Agreement (after giving effect for such purpose to the provisions of
    Section 9), which shall be applicable to the Substitute Option.

        (d) The Substitute Option shall be exercisable for such number of shares
    of Substitute Common Stock as is equal to the Assigned Value multiplied by
    the number of shares of Common Stock for which the Option is then
    exercisable, divided by the Average Price. The exercise price of the
    Substitute Option per share of Substitute Common Stock shall then be equal
    to the Option Price multiplied by a fraction, the numerator of which shall
    be the number of shares of Common Stock for which the Option is then
    exercisable and the denominator of which shall be the number of shares of
    Substitute Common Stock for which the Substitute Option is exercisable.

        (e) In no event, pursuant to any of the foregoing subsections, shall the
    Substitute Option be exercisable for more than 19.9% of the shares of
    Substitute Common Stock outstanding prior to exercise of the Substitute
    Option.

    In the event that the Substitute Option would be exercisable for more than
19.9% of the shares of Substitute Common Stock outstanding prior to exercise but
for this subsection (e), the issuer of the Substitute Option (the "SUBSTITUTE
OPTION ISSUER") shall make a cash payment to the Holder equal to the excess of
(i) the value of the Substitute Option without giving effect to the limitation
in this subsection (e) over (ii) the value of the Substitute Option after giving
effect to the limitation in this subsection (e). This difference in value shall
be determined by a nationally recognized investment banking firm selected by the
Holder or the Owner, as the case may be, and reasonably acceptable to the
Acquiring Corporation.

        (f) Issuer shall not enter into any transaction described in subsection
    (a) of this Section 8 unless the Acquiring Corporation and any person that
    controls the Acquiring Corporation assume in writing all the obligations of
    Issuer hereunder.

    9.  REPURCHASE OF SUBSTITUTE OPTION.

        (a) At the request of the holder of the Substitute Option (the
    "SUBSTITUTE OPTION HOLDER") delivered prior to an Exercise Termination
    Event, the Substitute Option Issuer shall repurchase the

                                      G-8
<PAGE>
    Substitute Option from the Substitute Option Holder at a price (the
    "SUBSTITUTE OPTION REPURCHASE PRICE") equal to the amount by which (i) the
    Highest Closing Price (as hereinafter defined) exceeds (ii) the exercise
    price of the Substitute Option, multiplied by the number of shares of
    Substitute Common Stock for which the Substitute Option may then be
    exercised, and at the request of the owner (the "SUBSTITUTE SHARE OWNER") of
    shares of Substitute Common Stock (the "SUBSTITUTE SHARES"), the Substitute
    Option Issuer shall repurchase the Substitute Shares at a price (the
    "SUBSTITUTE SHARE REPURCHASE PRICE") equal to the Highest Closing Price
    multiplied by the number of Substitute Shares so designated. The term
    "HIGHEST CLOSING PRICE" shall mean the highest closing price for shares of
    Substitute Common Stock within the six-month period immediately preceding
    the date the Substitute Option Holder gives notice of the required
    repurchase of the Substitute Option or the Substitute Share Owner gives
    notice of the required repurchase of the Substitute Shares, as applicable.

        (b) The Substitute Option Holder or the Substitute Share Owner, or both,
    as the case may be, may exercise its respective right to require the
    Substitute Option Issuer to repurchase the Substitute Option or the
    Substitute Shares, as applicable, pursuant to this Section 9 by surrendering
    for such purpose to the Substitute Option Issuer, at its principal office,
    the agreement for such Substitute Option (or, in the absence of such an
    agreement, a copy of this Agreement) and/or certificates for Substitute
    Shares accompanied by a written notice or notices stating that the
    Substitute Option Holder or the Substitute Share Owner, as the case may be,
    elects to require the Substitute Option Issuer to repurchase the Substitute
    Option and/or the Substitute Shares in accordance with the provisions of
    this Section 9. As promptly as practicable, and in any event within five
    business days after the surrender of the Substitute Option and/or
    certificates representing Substitute Shares and the receipt of such notice
    or notices relating thereto, the Substitute Option Issuer shall deliver or
    cause to be delivered to the Substitute Option Holder the Substitute Option
    Repurchase Price and/or to the Substitute Share Owner the Substitute Share
    Repurchase Price therefor or, in either case, the portion thereof which the
    Substitute Option Issuer is not then prohibited under applicable law and
    regulation from so delivering.

        (c) To the extent that the Substitute Option Issuer is prohibited under
    applicable law or regulation or through commencement of regulatory
    enforcement action from repurchasing the Substitute Option and/or the
    Substitute Shares in part or in full, the Substitute Option Issuer following
    a request for repurchase pursuant to this Section 9 shall immediately so
    notify the Substitute Option Holder and/or the Substitute Share Owner and
    thereafter deliver or cause to be delivered, from time to time, to the
    Substitute Option Holder and/or the Substitute Share Owner, as appropriate,
    the portion of the Substitute Option Repurchase Price and Substitute Share
    Repurchase Price, respectively, which it is no longer prohibited from
    delivering, within five business days after the date on which the Substitute
    Option Issuer is no longer so prohibited; provided, however, that if the
    Substitute Option Issuer is at any time after delivery of a notice of
    repurchase pursuant to subsection (b) of this Section 9 prohibited under
    applicable law or regulation or through commencement of regulatory
    enforcement action from delivering to the Substitute Option Holder and/or
    the Substitute Share Owner, as appropriate, the Substitute Option Repurchase
    Price and the Substitute Share Repurchase Price, respectively, in full (and
    the Substitute Option Issuer shall use its best efforts to receive all
    required regulatory and legal approvals as promptly as practicable in order
    to accomplish such repurchase), the Substitute Option Holder or the
    Substitute Share Owner may revoke its notice of repurchase of the Substitute
    Option or the Substitute Shares either in whole or to the extent of the
    prohibition, whereupon, in the latter case, the Substitute Option Issuer
    shall promptly (i) deliver to the Substitute Option Holder or the Substitute
    Share Owner, as appropriate, that portion of the Substitute Option
    Repurchase Price or the Substitute Share Repurchase Price that the
    Substitute Option Issuer is not prohibited from delivering; and
    (ii) deliver, as appropriate, either (A) to the Substitute Option Holder, a
    new Substitute Option evidencing the right of the Substitute Option

                                      G-9
<PAGE>
    Holder to purchase that number of shares of the Substitute Common Stock
    obtained by multiplying the number of shares of the Substitute Common Stock
    for which the surrendered Substitute Option was exercisable at the time of
    delivery of the notice of repurchase by a fraction, the numerator of which
    is the Substitute Option Repurchase Price less the portion thereof
    theretofore delivered to the Substitute Option Holder and the denominator of
    which is the Substitute Option Repurchase Price, or (B) to the Substitute
    Share Owner, a certificate for the Substitute Shares it is then so
    prohibited from repurchasing.

    10.  EXTENSION OF CERTAIN PERIODS.  The 90-day or six-month period, as the
case may be, for exercise of certain rights under each of Sections 2, 6, 7 and
14 shall be extended: (i) to the extent necessary to obtain all regulatory
approvals for the exercise of such rights (for so long as the Holder, Owner,
Substitute Option Holder or Substitute Share Owner, as the case may be, is using
its reasonable best efforts to obtain such regulatory approval) and for the
expiration of all statutory waiting periods; and (ii) to the extent necessary to
avoid liability under Section 16(b) of the 1934 Act by reason of such exercise.

    11.  ISSUER REPRESENTATIONS AND WARRANTIES.  Issuer hereby represents and
warrants to Grantee as follows:

        (a) Issuer has full corporate power and authority to execute and deliver
    this Agreement and to consummate the transactions contemplated hereby. The
    execution and delivery of this Agreement and the consummation of the
    transactions contemplated hereby have been duly and validly authorized by
    the Board of Directors of Issuer and no other corporate proceedings on the
    part of Issuer are necessary to authorize this Agreement or to consummate
    the transactions so contemplated. This Agreement has been duly and validly
    executed and delivered by Issuer.

        (b) Issuer has taken all necessary corporate action to authorize and
    reserve and to permit it to issue, and at all times from the date hereof
    through the termination of this Agreement in accordance with its terms will
    have reserved for issuance upon the exercise of the Option, that number of
    shares of Common Stock equal to the maximum number of shares of Common Stock
    at any time and from time to time issuable hereunder, and all such shares,
    upon issuance pursuant hereto, will be duly authorized, validly issued,
    fully paid, nonassessable, and will be delivered free and clear of all
    claims, liens, encumbrance and security interests and not subject to any
    preemptive rights.

        (c) Issuer has taken all action (including, if required, redeeming all
    of the Rights or amending or terminating the Polar Bear Rights Agreement) so
    that the entering into of this Agreement, the acquisition of shares of
    Common Stock hereunder and the other transactions contemplated hereby do not
    and will not result in the grant of any rights to any person under the Polar
    Bear Rights Agreement or enable or require the Polar Bear Rights to be
    exercised, distributed or triggered.

    12.  GRANTEE REPRESENTATIONS AND WARRANTIES.  Grantee hereby represents and
warrants to Issuer that:

        (a) Grantee has all requisite corporate power and authority to enter
    into this Agreement and, subject to any approvals or consents referred to
    herein, to consummate the transactions contemplated hereby. The execution
    and delivery of this Agreement and the consummation of the transactions
    contemplated hereby have been duly authorized by all necessary corporate
    action on the part of Grantee. This Agreement has been duly executed and
    delivered by Grantee.

        (b) The Option is not being, and any shares of Common Stock or other
    securities acquired by Grantee upon exercise of the Option will not be,
    acquired with a view to the public distribution thereof and will not be
    transferred or otherwise disposed of except in a transaction registered or
    exempt from registration under the 1933 Act.

                                      G-10
<PAGE>
    13.  LIMITATION ON TOTAL PROFIT.

        (a) Notwithstanding anything to the contrary contained herein, in no
    event shall Grantee's Total Profit (as defined in subsection (c) of this
    Section 13) exceed $425,000.

        (b) Notwithstanding anything to the contrary contained herein, the
    Option may not be exercised for a number of shares as would, as of the date
    of exercise, result in a Notional Total Profit (as defined in subsection
    (d) of this Section 13) of more than $425,000.

        (c) As used herein, the term "TOTAL PROFIT" shall mean the aggregate
    amount (before taxes) of the following: (i) the amount received by Grantee
    pursuant to Issuer's repurchase of the Option (or any portion thereof)
    pursuant to Section 7 hereof, (ii) (x) the amount received by Grantee
    pursuant to Issuer's repurchase of Option Shares pursuant to Section 7
    hereof, less (y) Grantee's purchase price for such Option Shares,
    (iii) (x) the net cash amounts received by Grantee pursuant to the sale of
    Option Shares (or any other securities into which such Option Shares shall
    be converted or exchanged) to any unaffiliated party, less (y) Grantee's
    purchase price for such Option Shares, (iv) any amounts received by Grantee
    on the transfer of the Option (or any portion thereof) to any unaffiliated
    party, (v) any equivalent amount with respect to the Substitute Option,
    including pursuant to Section 8(e); and (vi) the amount of any termination
    fee (which is exclusive of any reimbursement amounts) actually received by
    Grantee pursuant to Section 9.2 of the Merger Agreement. For purposes of
    this Section 13, references to Grantee shall be deemed to include references
    to any affiliate of the Grantee.

        (d) As used herein, the term "NOTIONAL TOTAL PROFIT" with respect to any
    number of shares as to which Grantee may propose to exercise the Option
    shall be the Total Profit determined as of the date of such proposed
    exercise assuming that the Option were exercised on such date for such
    number of shares and assuming that such shares, together with all other
    Option Shares held by Grantee and its affiliates as of such date, were sold
    for cash at the closing market price for the Common Stock as of the close of
    business on the preceding trading day (less customary brokerage
    commissions).

    14.  ASSIGNMENT.  Neither of the parties hereto may assign any of its rights
or obligations under this Agreement or the Option created hereunder to any other
person, without the express written consent of the other party, except that in
the event a Subsequent Triggering Event shall have occurred prior to an Exercise
Termination Event, Grantee, subject to the express provisions hereof, may assign
in whole or in part its rights and obligations hereunder within 90 days
following such Subsequent Triggering Event (or such longer period as provided in
Section 10); provided, however, that until the date 15 days following the date
on which the Federal Reserve Board, the FDIC, and/or any other federal or state
bank regulatory authority, as applicable, approves an application by Grantee to
acquire the shares of Common Stock subject to the Option (if such approval is
required by law), Grantee may not assign its rights under the Option except in
(i) a widely dispersed public distribution, (ii) a private placement in which no
one person acquires the right to purchase in excess of 2% of the voting shares
of Issuer, (iii) an assignment to a single person (e.g., a broker or investment
banker) for the purpose of conducting a widely dispersed public distribution on
Grantee's behalf, or (iv) any other manner approved by the Federal Reserve
Board, the FDIC, and/or any other federal or state bank regulatory authority, as
applicable.

    15.  FILINGS.  Each of Grantee and Issuer will use its best efforts to make
all filings with, and to obtain consents of, all third parties and governmental
authorities necessary to the consummation of the transactions contemplated by
this Agreement, including without limitation making application to list the
shares of Common Stock issuable hereunder on the Nasdaq Stock Market upon
official notice of issuance and applying to the Federal Reserve Board, the FDIC,
and/or any other federal or state bank regulatory authority, as applicable, for
approval to acquire the shares issuable hereunder, but Grantee

                                      G-11
<PAGE>
shall not be obligated to apply to state banking authorities for approval to
acquire the shares of Common Stock issuable hereunder until such time, if ever,
as it deems appropriate to do so.

    16.  EQUITABLE REMEDIES.  The parties hereto acknowledge that damages would
be an inadequate remedy for a breach of this Agreement by either party hereto
and that the obligations of the parties hereto shall be enforceable by either
party hereto through injunctive or other equitable relief.

    17.  VALIDITY.  If any term, provision, covenant or restriction contained in
this Agreement is held by a court or a federal or state regulatory agency of
competent jurisdiction to be invalid, void or unenforceable, the remainder of
the terms, provisions and covenants and restrictions contained in this Agreement
shall remain in full force and effect, and shall in no way be affected, impaired
or invalidated. If for any reason such court or regulatory agency determines
that the Holder is not permitted to acquire, or Issuer is not permitted to
repurchase pursuant to Section 7, the full number of shares of Common Stock
provided in Section 1(a) hereof (as adjusted pursuant to Section 1(b) or 5
hereof), it is the express intention of Issuer to allow the Holder to acquire or
to require Issuer to repurchase such lesser number of shares as may be
permissible, without any amendment or modification hereof.

    18.  NOTICES.  All notices, requests, claims, demands and other
communications hereunder shall be deemed to have been duly given when delivered
in person, by cable, telegram, telecopy or telex, or by registered or certified
mail (postage prepaid, return receipt requested) at the respective addresses of
the parties set forth in the Merger Agreement.

    19.  GOVERNING LAW.  This Agreement shall be governed by and construed in
accordance with the laws of the State of Oregon, regardless of the laws that
might otherwise govern under applicable principles of conflicts of laws thereof.

    20.  COUNTERPARTS.  This Agreement may be executed in two counterparts, each
of which shall be deemed to be an original, but all of which shall constitute
one and the same agreement.

    21.  EXPENSES.  Except as otherwise expressly provided herein, each of the
parties hereto shall bear and pay all costs and expenses incurred by it or on
its behalf in connection with the transactions contemplated hereunder, including
fees and expenses of its own financial consultants, investment bankers,
accountants and counsel.

    22.  ENTIRE AGREEMENT.  Except as otherwise expressly provided herein or in
the Merger Agreement, this Agreement contains the entire agreement between the
parties with respect to the transactions contemplated hereunder and supersedes
all prior arrangements or understandings with respect thereof, written or oral.
The terms and conditions of this Agreement shall inure to the benefit of and be
binding upon the parties hereto and their respective successors and permitted
assigns. Nothing in this Agreement, expressed or implied, is intended to confer
upon any party, other than the parties hereto, and their respective successors
and permitted assigns, any rights, remedies, obligations or liabilities under or
by reason of this Agreement, except as expressly provided herein.

    23.  CAPITALIZED TERMS.  Capitalized terms used in this Agreement and not
defined herein shall have the meanings assigned thereto in the Merger Agreement.

                                      G-12
<PAGE>
    IN WITNESS WHEREOF, each of the parties has caused this Agreement to be
executed on its behalf by its officers thereunto duly authorized, all as of the
date first above written.

<TABLE>
<S>                                             <C>
                                                NORTHERN BANK OF COMMERCE

                                                               By:          /s/ John H. Holloway, Jr.
                                                              ---------------------------------------
                                                                        Name:   John H. Holloway, Jr.
                                                                  -----------------------------------
                                                      Title:    President and Chief Executive Officer
                                                                  -----------------------------------

                                                COWLITZ BANCORPORATION

                                                                 By:           /s/ Charles W. Jarrett
                                                              ---------------------------------------
                                                                           Name:   Charles W. Jarrett
                                                                  -----------------------------------
                                                      Title:    President and Chief Operating Officer
                                                                  -----------------------------------
</TABLE>

                                      G-13
<PAGE>
                                    PART II
                     INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 20.  INDEMNIFICATION OF DIRECTORS AND OFFICERS

    Sections 23B.08.500 through 23B.08.600 of the Washington Business
Corporation Act authorize a court to award, or a corporation's board of
directors to grant, indemnification to directors and officers on terms
sufficiently broad to permit indemnification under certain circumstances for
liabilities arising under the Securities Act of 1933, as amended (the
"Securities Act"), Article X of Cowlitz Bancorp's Restated Articles of
Incorporation (Exhibit 3.1 hereto) provides for indemnification of Cowlitz
Bancorp's directors to the maximum extent permitted by Washington law, and also
permits Cowlitz Bancorp's board of directors to indemnify Cowlitz officers,
employees and agents. The directors and officers of Cowlitz Bancorp also may be
indemnified against liability they may incur for serving in such capacity
pursuant to a liability insurance policy maintained by Cowlitz Bancorp for such
a purpose.

    Section 23B.08.320 of the Washington Business Corporation Act authorizes a
corporation to limit a director's liability to the corporation or its
shareholders for monetary damages for acts or omissions as a director.
Article VIII of Cowlitz Bancorp's Restated Articles of Incorporation contains
provisions implementing such limitations on a director's liability to Cowlitz
Bancorp and its shareholders, except in certain circumstances involving (i) any
breach of the director's duty of loyalty to Cowlitz Bancorp or its shareholders,
(ii) acts or omissions not in good faith or which involve intentional misconduct
or a knowing violation of law, (iii) any unlawful distribution to shareholders,
or (iv) any transaction from which the director derived an improper personal
benefit.

    Insofar as indemnification for liabilities arising under the Securities Act
may be permitted to directors, officers and controlling persons of Cowlitz
Bancorp pursuant to the provisions referenced in this Item 20 of this
Registration Statement, or otherwise, Cowlitz Bancorp has been advised that in
the opinion of the Securities and Exchange Commission such indemnification is
against public policy as expressed in the Securities Act and is, therefore,
unenforceable. In the event that a claim for indemnification against such
liabilities (other than the payment by Cowlitz Bancorp of expenses incurred or
paid by a director, officer or controlling person of Cowlitz Bancorp in the
successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities being
registered, Cowlitz Bancorp will, unless in the opinion of its counsel the
matter has been settled by controlling precedent, submit to a court of
appropriate jurisdiction the question whether such indemnification by it is
against public policy as expressed in the Securities Act and will be governed by
the final adjudication of such issue.

                                      II-1
<PAGE>
ITEM 21.  EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

<TABLE>
<CAPTION>
EXHIBIT NO.             DESCRIPTION
-----------             -----------
<C>                     <S>
         2.1            Agreement and Plan of Merger by and among the Registrant,
                        Cowlitz Bank and Northern Bank of Commerce, dated September
                        14, 1999. (Incorporated by reference to Appendix C of the
                        joint proxy statement included in this Registration
                        Statement.) Registrant agrees to furnish supplementally to
                        the Commission upon request a copy of any omitted schedule.

         3.1            Restated Articles of Incorporation of the Registrant
                        (Incorporated by reference to the Registrant's Registration
                        Statement on Form S-1, File No. 333-44355).

         3.2            Bylaws of the Registrant (Incorporated by reference to the
                        Registrant's Registration Statement on Form S-1, File No.
                        333-44355).

         5.1            Opinion of Heller Ehrman White & McAuliffe.

         8.1            Tax Opinion of Heller Ehrman White & McAuliffe.

        10.1            Employment Agreement, dated September 14, 1999, between the
                        Registrant and John Holloway, Jr.

        10.2            Option Agreement, dated September 14, 1999 between the
                        Registrant and John Holloway, Jr.

        10.3            Form of Option Agreement between the Registrant and Northern
                        Bank executives dated September 14, 1999.

        10.4            Form of Shareholder's Non-Competition and Indemnification
                        Limitation Agreement dated September 14, 1999.

        23.1            Consent of Arthur Andersen LLP.

        23.2            Consent of Moss Adams.

        23.3            Consent of Heller Ehrman White & McAuliffe (included in its
                        Opinions filed as Exhibits 5.1 and 8.1).

        23.4            Consent of Sage Capital LLC (included in its opinion filed
                        as Appendix E of the joint proxy statement included in this
                        Registration Statement).

        23.5            Consent of D.A. Davidson & Co.

        24.1            Powers of Attorney (included on the signature page of this
                        Registration Statement).

        99.1            Cease and Desist Order issued against Northern Bank of
                        Commerce by the FDIC.

        99.2            Cease and Desist Order issued against Northern Bank of
                        Commerce by the State of Oregon.

        99.3            Form of Proxy Card of Cowlitz Bancorp.

        99.4            Form of Proxy Card of Northern Bank.

        99.5            Form of Escrow Agreement to be entered into by Registrant,
                        Cowlitz Bank, Northern Bank, and       as Escrow Agent
                        (Incorporated by reference to Appendix F of the joint proxy
                        statement included in this Registration Statement).

        99.6            Stock Option Agreement between the Registrant and Northern
                        Bank, dated September 14, 1999 (Incorporated by reference to
                        Appendix G of the joint proxy statement included in this
                        Registration Statement).
</TABLE>

                                      II-2
<PAGE>
ITEM 22.  UNDERTAKINGS

    The undersigned Registrant hereby undertakes:

    (1) To file, during any period in which offers or sales are being made, a
post-effective amendment to this registration statement:

        (i) to include any prospectus required by Section 10(a)(3) of the
    Securities Act of 1933;

        (ii) to reflect in the prospectus any facts or events arising after the
    effective date of the registration statement (or the most recent
    post-effective amendment thereof) which, individually or in the aggregate,
    represent a fundamental change in the information set forth in the
    registration statement;

       (iii) to include any material information with respect to the plan of
    distribution not previously disclosed in the registration statement or any
    material change to such information in the registration statement;

    (2) That, for the purpose of determining any liability under the Securities
Act of 1933, each such post-effective amendment shall be deemed to be a new
registration statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.

    (3) To remove from registration by means of a post-effective amendment any
of the securities being registered which remain unsold at the termination of the
offering.

    Insofar as indemnification for liabilities arising under the Securities Act
of 1933 may be permitted to directors, officers and controlling persons of the
Registrant pursuant to the foregoing provisions, or otherwise, the Registrant
has been advised that in the opinion of the Securities and Exchange Commission
such indemnification is against public policy as expressed in the Act and is,
therefore, unenforceable. In the event that a claim for indemnification against
such liabilities (other than the payment by the Registrant of expenses incurred
by a director, officer or controlling person of the Registrant in the successful
defense of any action, suit or proceeding) is asserted by such director, officer
or controlling person in connection with the securities being registered, the
Registrant will, unless in the opinion of its counsel the matter has been
settled by controlling precedent, submit to a court of appropriate jurisdiction
the question whether such indemnification by it is against public policy as
expressed in the Act and will be governed by the final adjudication of such
issue.

    The undersigned registrant hereby undertakes to respond to requests for
information that is incorporated by reference into the prospectus pursuant to
Items 4, 10(b), 11 or 13 of this Form within one business day of receipt of such
request, and to send the incorporated documents by first class mail or other
equally prompt means. This includes information contained in documents filed
subsequent to the effective date of the registration statement through the date
of responding to the request.

    The undersigned registrant hereby undertakes to supply by means of a
post-effective amendment all information concerning a transaction, and the
company being acquired involved therein, that was not the subject of and
included in the registration statement when it became effective.

    The undersigned registrant hereby undertakes as follows: that prior to any
public reoffering of the securities registered hereunder through use of a
prospectus which is a part of this registration statement, by any person or
party who is deemed to be an underwriter within the meaning of Rule 145(c), the
issuer undertakes that such reoffering prospectus will contain the information
called for by the applicable registration form with respect to reofferings by
persons who may be deemed underwriters, in addition to the information called
for by the other items of the applicable form.

    The registrant undertakes that every prospectus: (i) that is filed pursuant
to the paragraph immediately preceding, or (ii) that purports to meet the
requirements of Section 10(a)(3) of the Act

                                      II-3
<PAGE>
and is used in connection with an offering of securities subject to Rule 415,
will be filed as a part of an amendment to the registration statement and will
not be used until such amendment is effective, and that, for purposes of
determining any liability under the Securities Act of 1933, each such
post-effective amendment shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such securities
at that time shall be deemed to be the initial BONA FIDE offering thereof.

                                      II-4
<PAGE>
                                   SIGNATURES

    Pursuant to the requirements of the Securities Act of 1933, as amended, the
Registrant has duly caused this Registration Statement to be signed on its
behalf by the undersigned, thereunto duly authorized, in the City of Seattle,
State of Washington on November 23, 1999.

<TABLE>
                                                     <S>     <C>
                                                     COWLITZ BANCORPORATION

                                                     By:               /s/ CHARLES W. JARRETT
                                                              ----------------------------------------
                                                                         Charles W. Jarrett
                                                     Title:     PRESIDENT AND CHIEF OPERATING OFFICER
</TABLE>

                               POWER OF ATTORNEY

    Each person whose individual signature appears below hereby constitutes and
appoints Charles W. Jarrett, as his or her true and lawful attorney-in-fact with
full power of substitution to execute in the name and on behalf of such person,
individually and in each capacity stated below, and to file, any and all
amendments to this Registration Statement, including any and all post-effective
amendments.

    Pursuant to the requirement of the Securities Act of 1933, this Registration
Statement has been signed below by the following persons in the capacities
indicated below on the 23rd day of November, 1999.

<TABLE>
<S>                                               <C>
           /s/ BENJAMIN NAMATINIA                               /s/ DON P. KISER
  ----------------------------------------          ----------------------------------------
             Benjamin Namatinia                                   Don P. Kiser
                 CHAIRMAN,                                     VICE PRESIDENT AND
     CHIEF EXECUTIVE OFFICER; DIRECTOR                    AND CHIEF FINANCIAL OFFICER
       (PRINCIPAL FINANCIAL OFFICER)                     (PRINCIPAL EXECUTIVE OFFICER)

                                                              /s/ DONNA P. GARDNER
                                                    ----------------------------------------
                                                                Donna P. Gardner
                                                       VICE PRESIDENT/SECRETARY-TREASURER
                                                         (PRINCIPAL ACCOUNTING OFFICER)

          /s/ MARK F. ANDREWS, JR.                           /s/ CHARLES W. JARRETT
  ----------------------------------------          ----------------------------------------
            Mark F. Andrews, Jr.                               Charles W. Jarrett
                  DIRECTOR                                          DIRECTOR

            /s/ LARRY M. LARSON                               /s/ E. CHRIS SEARING
  ----------------------------------------          ----------------------------------------
              Larry M. Larson                                   E. Chris Searing
                  DIRECTOR                                          DIRECTOR
</TABLE>

                                      II-5
<PAGE>
                                 EXHIBIT INDEX

<TABLE>
<CAPTION>
EXHIBIT NO.             DESCRIPTION
-----------             -----------
<C>                     <S>
         2.1            Agreement and Plan of Merger by and among the Registrant,
                          Cowlitz Bank and Northern Bank of Commerce, dated
                          September 14, 1999. (Incorporated by reference to
                          Appendix C of the joint proxy statement included in this
                          Registration Statement.) Registrant agrees to furnish
                          supplementally to the Commission upon request a copy of
                          any omitted schedule.

         3.1            Restated Articles of Incorporation of the Registrant
                          (Incorporated by reference to the Registrant's
                          Registration Statement on Form S-1, File No. 333-44355).

         3.2            Bylaws of the Registrant (Incorporated by reference to the
                          Registrant's Registration Statement on Form S-1, File
                          No. 333-44355).

         5.1            Opinion of Heller Ehrman White & McAuliffe.

         8.1            Tax Opinion of Heller Ehrman White & McAuliffe.

        10.1            Employment Agreement, dated September 14, 1999, between the
                          Registrant and John Holloway, Jr.

        10.2            Option Agreement, dated September 14, 1999 between the
                          Registrant and John Holloway, Jr.

        10.3            Form of Option Agreement between the Registrant and Northern
                          Bank executives dated September 14, 1999.

        10.4            Form of Shareholder's Non-Competition and Indemnification
                          Limitation Agreement dated September 14, 1999.

        23.1            Consent of Arthur Andersen LLP.

        23.2            Consent of Moss Adams.

        23.3            Consent of Heller Ehrman White & McAuliffe (included in its
                          Opinions filed as Exhibits 5.1 and 8.1).

        23.4            Consent of Sage Capital LLC (included in its opinion filed
                          as Appendix E of the joint proxy statement included in
                          this Registration Statement).

        23.5            Consent of D.A. Davidson & Co.

        24.1            Powers of Attorney (included on the signature page of this
                          Registration Statement).

        99.1            Cease and Desist Order issued against Northern Bank of
                          Commerce by the FDIC.

        99.2            Cease and Desist Order issued against Northern Bank of
                          Commerce by the State of Oregon.

        99.3            Form of Proxy Card of Cowlitz Bancorp.

        99.4            Form of Proxy Card of Northern Bank.

        99.5            Form of Escrow Agreement to be entered into by Registrant,
                          Cowlitz Bank, Northern Bank, and             as Escrow
                          Agent (Incorporated by reference to Appendix F of the
                          joint proxy statement included in this Registration
                          Statement).

        99.6            Stock Option Agreement between the Registrant and Northern
                          Bank, dated September 14, 1999 (Incorporated by reference
                          to Appendix G of the joint proxy statement included in
                          this Registration Statement).
</TABLE>

                                      II-6

<PAGE>

              [Letterhead of Heller Ehrman White & McAuliffe]

                                                                    EXHIBIT 5.1

November 24, 1999





Cowlitz Bancorporation
927 Commerce Ave.
Longview, Washington 98632

         Re:      LEGALITY OF SECURITIES TO BE REGISTERED UNDER REGISTRATION
                  STATEMENT ON FORM S-4

Dear Ladies and Gentlemen:

         This opinion is delivered in our capacity as counsel to Cowlitz
Bancorporation, a Washington corporation (the "Company"), in connection with
the preparation and filing by the Company with the Securities and Exchange
Commission (the "Commission") of a Registration Statement on Form S-4 (the
"Registration Statement") relating to 1,243,615 shares of common stock, no
par value (the "Securities"). The Securities will be issued to shareholders
of Northern Bank of Commerce ("NBOC") pursuant to that certain Agreement and
Plan of Merger dated as of September 14, 1999 by and between the Company, its
wholly-owned subsidiary, Cowlitz Bank, and NBOC, as amended by Amendment No.
1 to the Agreement and Plan of Merger dated November 23, 1999 (collectively,
the "Merger Agreement").

                                       I.

         We have assumed the authenticity of all records, documents and
instruments submitted to us as originals, the genuineness of all signatures,
the legal capacity of natural persons and the conformity to the originals of
all records, documents and instruments submitted to us as copies. We have
based our opinion upon our review of the following records, documents,
instruments and certificates:

         (a) the Registration Statement;

         (b) the Merger Agreement;

         (c) The Articles of Incorporation (including all amendments thereto)
             of the Company certified by the Washington Secretary of State as
             of November 23, 1999, and certified to us by an officer of the
             Company as being complete and in full force and effect as of the
             date of this opinion;

         (d) The Bylaws of the Company (and all amendments thereto) certified
             to us by an officer of the Company as being complete and in full
             force and effect as of the

<PAGE>

             date of this opinion;

         (e) A Certificate of Existence/Authorization relating to the Company
             issued by the Washington Secretary of State dated November 23,
             1999;

         (f) Records of the corporate proceedings of the Company certified to
             us by an officer of the Company constituting all records of
             proceedings and actions of the Company's board of directors
             relating to the transactions contemplated by the Merger
             Agreement; and

         (g) Certificates of officers of the Company as to certain factual
             matters.

         We have also assumed that the Securities will be duly executed,
authenticated and delivered on behalf of the Company prior to their issuance
against the consideration therefor set forth in the Merger Agreement. In
addition, we have also assumed that the Registration Statement will have been
declared effective by the Securities and Exchange Commission prior to, and
will continue to be effective at the time of, the issuance of the Securities.

                                       II.

         We express no opinion as to:

         A. The applicable choice of law rules that may affect the
interpretation or enforcement of the Merger Agreement or the Securities.

         B. Any tax, anti-trust, land use, safety, environmental or hazardous
materials laws, rules or regulations.

         This opinion is limited to the federal laws of the United States of
America and the Washington Business Corporation Act, and we disclaim any
opinion as to the laws of any other jurisdiction. We further disclaim any
opinion as to any statute, rule, regulation, ordinance, order or other
promulgation of any regional or local governmental body or as to any related
judicial or administrative opinion.

                                      III.

         Based upon the foregoing and our examination of such questions of
law as we have deemed necessary or appropriate for the purpose of our
opinion, and subject to the limitations and qualifications expressed below,
it is our opinion that when the Securities are issued to the shareholders of
NBOC in accordance with the terms of the Merger Agreement, the Securities
will be duly authorized, validly issued and fully paid and non-assessable.

<PAGE>

                                       IV.

         We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement and to the reference to this firm under the heading
"Legal Matters" in the prospectus constituting a part of the Registration
Statement.

         This opinion is rendered to you in connection with the filing of the
Registration Statement and is solely for your benefit. This opinion may not
be relied upon by any other person, firm, corporation or other entity without
our prior written consent. We disclaim any obligation to advise you of any
change of law that occurs, or any facts of which we become aware, after the
date of this opinion.

                                       Very truly yours,

                                       /s/ Heller Ehrman White & McAuliffe


                                       HELLER EHRMAN WHITE & McAULIFFE


<PAGE>

              [Letterhead of Heller Ehrman White & McAuliffe]

                                                                   Exhibit 8.1


                               November 23, 1999

Cowlitz Bancorporation
927 Commerce Avenue
Longview, Washington 98632

     Ladies and Gentlemen:

     You have requested our opinion regarding certain federal income tax
consequences of the proposed merger (the "Merger") of Northern Bank of
Commerce ("Northern Bank") with and into Cowlitz Bank, a wholly-owned
subsidiary of Cowlitz Bankcorporation ("Cowlitz Bancorp").  Unless otherwise
defined, capitalized terms used herein have the meanings ascribed to them in
the Prospectus contained in Registration Statement No. 333-_____of Cowlitz
Bancorp on Form S-4 (the "Registration Statement") filed with the Securities
and Exchange Commission.  We have acted as counsel to Cowlitz Bancorp in
connection with the Merger and have examined and relied upon the Merger
Agreement dated September 14, 1999, among Cowlitz Bancorp, Cowlitz Bank and
Northern Bank (the "Agreement"), the exhibits and attachments thereto, the
Registration Statement, and such other instruments and documents related to
Cowlitz Bancorp, Cowlitz Bank, Northern Bank and the Merger as we have deemed
appropriate.

     Our opinion is based upon the understanding that the material facts are
as described in the Registration Statement, that the representations and
warranties in the Agreement are true, correct and complete, and that the
Merger will be effected in accordance with the terms set forth in the
Agreement.  In rendering our opinion we have relied upon such documents and
the foregoing representations without undertaking independently to verify the
accuracy and completeness of the matters covered thereby.

     Based upon the foregoing, it is our opinion that the statements in the
Registration Statement regarding the United States Federal income tax
consequences of the Merger, insofar as they constitute statements of United

<PAGE>

2
Cowlitz Bancorporation                                                 Page 2
November 23, 1999


States federal income tax law or legal conclusions, accurately summarize the
material United States federal income tax consequences of the Merger to a
Northern Bank shareholder.

                                *   *   *   *   *

     Our opinion is subject to certain assumptions and qualifications, and is
based on the truth and accuracy of the representations of the parties in the
Agreement.

     Our opinion is limited to the federal income tax consequences of the
Merger and does not address the tax consequences of transactions effected
prior to or after the Merger (whether or not in connection with the Merger),
or the effect of the Merger under the laws of the various state and local
governments or under the laws of any other jurisdiction.  Moreover, it does
not address special rules which may be applicable to particular shareholders
of Northern Bank, such as shareholders who acquired their shares pursuant to
the exercise of employee stock options, shareholders that are dealers or
foreign persons, or shareholders who exercise dissenter's rights.  We express
no opinion regarding any tax aspect or ramification of the Merger apart from
the opinion specifically set forth above.

     An opinion of counsel does not bind the Internal Revenue Service or
preclude it or a court from taking a position contrary to the opinion.  Our
opinion represents merely our best judgment as to the likely outcome of the
matters described above if litigated in an appropriate forum.  This opinion
is based upon the Code, the Treasury Regulations issued thereunder, and
judicial and administrative interpretations thereof, all as in effect on the
date of this opinion.  All of such authority is subject to change, including
retroactive change. We disclaim any obligation to advise of any developments
in areas covered by this opinion that occur after the date of this opinion.

     This opinion is rendered to you solely in connection with the filing of
the Registration Statement.  We hereby consent to the filing of this opinion
as an exhibit to the Registration Statement and to the references to our firm
in connection with the discussion of federal income taxes in the Registration
Statement.  In giving this consent, however, we do not admit that we are in
the category of persons whose consent is required under Section 7 of the
Securities Act of 1933, as amended.  This opinion may not be relied upon for
any other purpose without our written consent.

                                       Very truly yours,

                                       /s/ Heller Ehrman White & McAuliffe

                                       Heller Ehrman White & McAuliffe


<PAGE>


                              EMPLOYMENT AGREEMENT


         This Employment Agreement (the "AGREEMENT") is between COWLITZ BANK,
a Washington state-chartered bank ("COWLITZ BANK") and John H. Holloway, Jr.
("EMPLOYEE").

         Employee is currently employed by NORTHERN BANK OF COMMERCE
("NBOC"). Cowlitz Bancorporation ("COWLITZ") and NBOC are contemplating a
merger of NBOC with and into Cowlitz Bank (the "MERGER"). Following the
Merger, Cowlitz Bank intends to continue the commercial lending and banking
business of NBOC as a division of Cowlitz Bank. Because of Employee's
importance to Cowlitz Bank following the Merger and the value to be derived
from Employee's employment by Cowlitz Bank after the Merger, it is the desire
of Cowlitz Bank and Employee to set forth certain terms and conditions
relating to Employee's employment by Cowlitz Bank, to become effective upon
the consummation of the Merger.

         Therefore, the parties agree as follows:

         1.  EMPLOYMENT AT WILL. Cowlitz Bank agrees to employ Employee, and
Employee agrees to accept such employment, on the terms described in this
Agreement. This Agreement shall take effect immediately upon the consummation
of the Merger (the "EFFECTIVE DATE"). Employee's employment shall not be for
a specified term, shall be at will and may be terminated at any time by
Cowlitz Bank or Employee, with or without cause or advance notice. If the
Merger is not consummated, this Agreement shall be null and void.

         2.  DUTIES. Employee shall perform such duties as the Chief
Executive Officer or the Board of Directors of Cowlitz Bank (the "BOARD") may
from time to time direct. Employee agrees that during his employment with
Cowlitz Bank: (a) Employee will faithfully perform his duties to Cowlitz
Bank, (b) Employee will devote to the performance of his duties all such time
and attention as the Chief Executive Officer or the Board shall reasonably
require, taking, however, from time to time such reasonable vacations as are
consistent with his duties and Cowlitz Bank policy; (c) Employee will not,
without the express consent of the Chief Executive Officer or the Board,
become actively associated with or engaged in any business or activity during
the term of this Agreement other than that of Cowlitz Bank (provided,
however, that notwithstanding the foregoing, Employee shall not be precluded
from active association or engagement in a business or activity which (i)
does not employ Employee, (ii) does not interfere with the performance of
Employee's duties and responsibilities as a full-time employee of Cowlitz
Bank, and (iii) does not compete directly or indirectly with Cowlitz Bank or
its affiliates); (d) Employee will do nothing inconsistent with his duties to
Cowlitz Bank; and (e) without limiting the foregoing, Employee will do
nothing directly or indirectly that is competitive with Cowlitz, Cowlitz Bank
or their respective affiliates.

         3.  TITLE. Although it is the intention of the parties that during
the term of this Agreement Employee shall be an employee of Cowlitz Bank
whose initial duties will be to serve as Director of Marketing for the
Greater Portland Area and that the situs of services will be within Multnomah
County, Oregon, it is specifically understood that the employment and the

<PAGE>

nature and situs of services to be rendered shall be subject to the authority
of the Chief Executive Officer or the Board to change the same from time to
time and at any time and to provide for the operation of Cowlitz Bank as
specified by applicable banking laws and regulations.

         4.  SALARY. For so long as Employee is employed by Cowlitz Bank,
Employee will receive a salary in the annualized amount of $123,000 per year,
payable semi-monthly or in such manner as is consistent with Cowlitz Bank's
policy relating to salaried employees. All compensation paid to Employee
pursuant to this Agreement shall be subject to lawfully required withholdings.

         5.  COWLITZ STOCK OPTION. The parties recognize that Employee (a)
may be entitled to compensation from NBOC in the event of a change of control
of NBOC pursuant to that certain employment agreement between Employee and
NBOC effective August 23, 1994, as amended by Amendment dated as of February
28, 1997, and that the consummation of the Merger constitutes a change in
control for such purpose and (b) holds certain options to purchase shares of
NBOC common stock. In full satisfaction of NBOC's obligations (and any
obligations of Cowlitz Bank as successor to NBOC) under said employment
agreement or otherwise arising from a change in control, and in consideration
of Employee's surrender of such options to purchase shares of NBOC common
stock, Employee shall be granted an option to purchase 150,000 shares of the
common stock of Cowlitz at an exercise price equal to $12.00 per share
pursuant to an Option Agreement to be entered into by Cowlitz and Employee as
of the Effective Date in the form of EXHIBIT A attached (the "OPTION
AGREEMENT"). The option shares shall vest as follows: (i) 20% shall be
immediately vested as of the Effective Date and (ii) the balance shall vest
in four (4) equal annual installments on the first through fourth
anniversaries of the Effective Date. Such option to purchase shares of the
common stock of Cowlitz shall be subject to the terms and conditions of the
Option Agreement.

         6.  AUTOMOBILE. For so long as Employee is employed by Cowlitz Bank,
Cowlitz Bank shall provide to Employee the use of an automobile the
suitability of which shall be within the discretion of the Chief Executive
Officer or the Board of Directors of Cowlitz Bank. Cowlitz Bank shall be
responsible for the costs of such liability, personal injury and property
damage insurance for such automobile as Cowlitz Bank shall deem appropriate.

         7.  BENEFITS. Except as otherwise expressly set forth herein, for so
long as Employee is employed by Cowlitz Bank, Employee shall receive benefits
that are comparable to those offered to other similarly situated employees of
Cowlitz Bank (other than any stock options offered to such employees). The
determination of what particular benefits will be provided during Employee's
employment will be in Cowlitz Bank's discretion. Employee shall also be
entitled to receive such other perquisites as the Chief Executive Officer or
the Board may from time to time deem appropriate.

         8.  TERMINATION BY COWLITZ BANK.

             (a)  Cowlitz Bank may terminate Employee at any time in its sole
discretion. Except as expressly provided in any applicable employee welfare
benefit plan or pension plan, upon termination Cowlitz Bank shall have no
liability to pay any further compensation or any


                                      2

<PAGE>

other benefit or sum whatsoever to Employee or anyone claiming by, through or
under Employee.

             (b)  Employee understands that he is not eligible for severance
pay under any other plan or agreement of Cowlitz, Cowlitz Bank or its
affiliates.

         9.  CONFIDENTIALITY. Employee agrees that information not generally
known to the public to which Employee has been or will be exposed as a result
of Employee's employment by Cowlitz Bank is confidential information that
belongs to Cowlitz Bank. This includes information developed by Employee,
alone or with others, or entrusted to NBOC and/or Cowlitz Bank by their
customers or others. Cowlitz Bank's confidential information includes,
without limitation, information relating to NBOC's and/or Cowlitz Bank's
trade secrets, know-how, procedures, purchasing, accounting, marketing,
sales, customers and employees. Employee will hold Cowlitz Bank's
confidential information in strict confidence and will not disclose or use it
except as authorized by Cowlitz Bank and for Cowlitz Bank's benefit.

         10. POSSESSION OF MATERIALS. Employee agrees that upon conclusion of
employment or request by Cowlitz Bank, Employee shall turn over to Cowlitz
Bank all documents, files, office supplies and any other material or work
product in Employee's possession or control that were created pursuant to or
derived from Employee's services for NBOC and/or Cowlitz Bank.

         11. ARBITRATION. Any dispute arising out of or relating to this
Agreement shall be submitted to binding arbitration as follows:

             (a)  Each party shall select one arbitrator and the two
arbitrators shall together select a third arbitrator. Each of the arbitrators
shall be either a present or former senior executive or board member of a
banking, financial or insurance company doing business in the State of
Washington or a member of the Washington Bar with at least ten (10) years
experience in banking, financial or corporate law.

             (b)  The arbitration shall proceed in Seattle under Washington
law and the rules of the American Arbitration Association, to the extent not
inconsistent with this Agreement.

             (c)  Discovery shall be permitted only upon order of the
arbitrators after a showing of good cause (it being the intent of the parties
to limit discovery to that which is reasonably necessary for preparation and
presentation of this case).

             (d)  The arbitrators may require the losing party to pay some or
all of the costs of the arbitration and the prevailing party's reasonable
attorneys' fees.

             (e)  The decision of the arbitrators shall be binding upon the
parties and shall not be subject to judicial review, absent fraud or
collusion involving the arbitrators, and judgment may be entered upon the
award in the Cowlitz County Superior Court if the same is not paid within
thirty (30) days after the written decision of the arbitrators has been
delivered to the parties.


                                      3

<PAGE>

             (f)  In the case of a breach of any of Employee's obligations to
Cowlitz Bank, Cowlitz Bank may request a court of competent jurisdiction to
issue such temporary or interim relief (including temporary restraining
orders and preliminary injunctions) as may be appropriate, either before
arbitration is commenced or pending the outcome of arbitration. No such
request shall be a waiver of the right to submit any claim or controversy to
arbitration. Any issues of law or fact which arise in connection with such
request shall, at Cowlitz Bank's election, be determined by arbitration in
accordance with subparagraphs (a) through (e) above.

         12. MISCELLANEOUS.

             (a)  This Agreement and the Option Agreement constitute the
entire agreement between the parties with respect to the subject matter
hereof and may not be modified or abrogated orally or by course of dealing,
but only by another instrument in writing duly executed by the parties. This
Agreement replaces and supersedes all prior agreements, understandings,
conversations and representations between the parties with respect to such
subject matter.

             (b)  This Agreement has been drafted in contemplation of and
shall be construed in accordance with and governed by Washington law.
Jurisdiction and venue of any action in connection with this Agreement shall
be had exclusively in the Superior Court for Cowlitz County, Washington or
the U.S. District Court in Seattle, Washington.

             (c)  In the event of any litigation arising out of or relating
to this Agreement the losing party agrees to pay the prevailing party's
reasonable attorneys' fees and costs including those incurred on appeal.

             (d)  Employee acknowledges that this Agreement has been drafted
by Heller Ehrman White & McAuliffe as counsel for Cowlitz Bank and that
Employee has not relied upon such counsel with respect to this Agreement.

             (e)  If a court of competent jurisdiction or governmental
authority declares any term or provision hereof invalid, unenforceable or
unacceptable, the remaining terms and provisions hereof shall be unimpaired
and the invalid, unenforceable or unacceptable term or provision shall be
replaced by a term or provision that is valid, enforceable and acceptable and
that comes closest to expressing the intention of the invalid, unenforceable
or unacceptable term or provision.

             (f)  Employee may not assign, pledge or encumber his interest in
this Agreement or any part thereof without the prior written consent of
Cowlitz Bank.

             (g)  The confidentiality and possession of materials provisions
of this Agreement shall remain enforceable according to their terms after
Employee's employment by Cowlitz Bank ends and/or after this Agreement is
terminated or expires, and shall be enforceable regardless of any claim
Employee may have against Cowlitz Bank or any Cowlitz Bank affiliate.


                                      4

<PAGE>

         DATED as of September 14, 1999.

COWLITZ BANK:                          COWLITZ BANK


                                       By /s/ Charles W. Jarrett
                                          -------------------------------------
                                          Name: Charles W. Jarrett

                                          Title: President and Chief Executive
                                                 Officer


EMPLOYEE:
                                          /s/ John H. Holloway, Jr.
                                          -------------------------------------
                                          John H. Holloway, Jr.


                                      5

<PAGE>

                                    EXHIBIT A

                                OPTION AGREEMENT




















                                       6

<PAGE>

                                OPTION AGREEMENT

         This OPTION AGREEMENT ("AGREEMENT"), dated September 14, 1999, is
made and entered into between Cowlitz Bancorporation, a Washington
corporation (the "COMPANY") and ___________________ an individual
("OPTIONEE").

         WHEREAS, the Company, Cowlitz Bank, a corporation chartered under
the banking laws of the State of Washington ("COWLITZ BANK") and Northen Bank
of Commerce, a corporation chartered under the banking laws of the State of
Oregon ("NBOC"), have entered into an Agreement and Plan of Merger of even
date herewith pursuant to which NBOC has agreed to merge with and into
Cowlitz Bank, with Cowlitz Bank being the survivor (the "MERGER");

         WHEREAS, in connection with the Merger, Optionee has entered into an
employment agreement with Cowlitz Bank (the "COWLITZ EMPLOYMENT AGREEMENT")
pursuant to which the Company has agreed to grant Optionee this Option (as
hereinafter defined) in exchange for certain agreements by Optionee;

         NOW THEREFORE, in consideration of the foregoing and the mutual
covenants and agreements set forth herein, the parties hereto agree as
follows:

         1.  SURRENDER OF NBOC OPTIONS AND CERTAIN PAYMENTS.

             (a)  Optionee hereby agrees to surrender to NBOC, prior to the
effective date of the Merger (the "EFFECTIVE DATE"), all unexercised options
to purchase shares of NBOC's common stock ("NBOC OPTIONS") held by Optionee
as of the date of this Agreement. Optionee represents and warrants that
SCHEDULE 1 sets forth a true and complete list of all NBOC Options held by
Optionee as of the date of this Agreement. Optionee further agrees that from
the date of this Agreement until the Effective Date, Optionee shall not
exercise any NBOC Option, in whole or in part.

             (b)  The parties recognize that Optionee may be entitled to
compensation from NBOC in connection with a change in control of NBOC
pursuant to Optionee's Employment Agreement with NBOC dated August 23, 1994,
as amended by Amendment between Optionee and NBOC dated as of February 28,
1997, and that the consummation of the Merger constitutes a change in control
of NBOC for such purpose. Optionee hereby agrees that the Company's grant of
this Option to Optionee shall satisfy in full all of NBOC's obligations (and
any obligations of Cowlitz Bank as successor to NBOC) under such employment
agreement or otherwise arising from a change in control of NBOC, if any.

         2.  GRANT OF OPTION. In consideration of Optionee's agreement to
enter into the Employment Agreement and Optionee's agreements in Section 1,
pursuant to the terms and conditions set forth herein, the Company hereby
grants to Optionee an option ("OPTION") to purchase, at any time or from time
to time during the Exercise Period (as defined in Section 3), 150,000 shares
of Common Stock of the Company, no par value (the "COMMON STOCK"), at a price
per share equal to $12.00 (the "EXERCISE PRICE"). The shares of Common Stock
issuable under this Option are hereinafter referred to as the "OPTION SHARES."

<PAGE>

         3.  VESTING SCHEDULE; EXERCISE PERIOD. This Option shall vest as
follows: (i) 20% shall be immediately vested as of the Effective Date and
(ii) the balance shall vest in four (4) equal annual installments on the
first through fourth anniversaries of the Effective Date. To the extent
vested, this Option may be exercised at any time or from time to time on or
after the Effective Date until the tenth (10th) anniversary of the Effective
Date (the "EXERCISE PERIOD"). Upon expiration of the Exercise Period, this
Option shall terminate.

         4.  EXERCISE; ISSUANCE OF CERTIFICATES; PAYMENT FOR OPTION SHARES.
Subject to the terms and conditions set forth herein, this Option may be
exercised by the holder hereof, in whole or in part, by (i) the delivery of
this Agreement together with a completed exercise agreement in the form
attached hereto (the "EXERCISE AGREEMENT"), to the Company during normal
business hours on any business day at the Company's principal executive
offices (or such other office or agency of the Company as it may designate by
notice to the holder hereof), (ii) paying in full to the Company, in cash or
by certified or official bank check, the Exercise Price for the Option Shares
specified in the Exercise Agreement and (ii) paying in full to the Company,
in cash or by certified or official bank check, any taxes applicable to the
exercise of this Option and delivery of the Option Shares, including without
limitation, stock transfer and withholding taxes. The Option Shares so
purchased shall be deemed to be issued to the holder hereof (or such holder's
designee) as the record owner of such shares as of the close of business on
the date on which this Agreement shall have been surrendered, the completed
Exercise Agreement delivered, and payment in full made for the Option Shares
(together with any applicable stock transfer and withholding taxes) as set
forth herein. Certificates for the Option Shares so purchased, representing
the aggregate number of shares specified in the Exercise Agreement, shall be
delivered to the holder hereof within a reasonable time, not exceeding ten
(10) business days, after this Option shall have been so exercised. The
certificates so delivered shall be in such denominations as may be requested
by the holder hereof and shall be registered in the name of such holder or,
if the Company consents in writing (which consent shall be at the sole
discretion of the Company) such other name as shall be designated by such
holder. If this Option shall have been exercised only in part, then, unless
this Option has expired, the Company shall, at its expense, at the time of
delivery of such certificates, deliver to the holder a new Option Agreement
representing the number of shares with respect to which this Option shall not
then have been exercised.

         5.  DEATH OF OPTIONEE. In the event of Optionee's death, this Option
and this Agreement shall be deemed to be assigned and transferred in
accordance with Optionee's will or the applicable laws of descent and
distribution, as the case may be, and this Agreement shall be binding upon
and inure to the benefit of Optionee's executors, administrators or heirs, as
applicable.

         6.  NO FRACTIONAL SHARES. No fractional shares of Common Stock are
to be issued upon the exercise of this Option, but the Company shall pay a
cash adjustment in respect of any fractional share which would otherwise be
issuable in an amount equal to the same fraction of the Exercise Price of a
share of Common Stock on the date of such exercise.

         7.  CERTAIN AGREEMENTS OF THE COMPANY. The Company hereby agrees as
follows:


                                      2

<PAGE>

             (a)  SHARES TO BE FULLY PAID. All Option Shares will, upon
issuance pursuant hereto, be duly authorized, validly issued, fully paid, and
nonassessable and free from all liens, encumbrances and security interests
with respect to the issue thereof.

             (b)  RESERVATION OF SHARES. During the Exercise Period, the
Company shall at all times have authorized, and reserved for the purpose of
issue upon exercise of this Option, a sufficient number of shares of Common
Stock to provide for the exercise of this Option.

         8.  EFFECT OF CERTAIN EVENTS.

             (a)  CERTAIN DEFINITIONS.  As used in this Section 8:


                  (i)   A "CHANGE IN CONTROL" means the event that is deemed
to have occurred if:

                        (A)  the acquisition of ownership, directly or
             indirectly, beneficially or of record, by any person, entity or
             group (within the meaning of the Securities Exchange Act of 1934
             and the rules promulgated thereunder as in effect on the date of
             this Agreement), other than the Company, a subsidiary of the
             Company or any employee benefit plan of the Company or of any
             subsidiary of the Company, of shares representing more then 50%
             of (1) the common stock of the Company, (2) the aggregate voting
             power of the Company's Voting Securities (as defined below) or
             (3) the total market value of the Company's Voting Securities;

                        (B)  a majority of the Company's board of directors
             (the "BOARD") ceasing to be composed of individuals (1) who were
             members of the Board on the date of this Agreement, (ii) whose
             election or nomination to the Board was approved by individuals
             referred to in clause (1) above constituting at the time of such
             election or nomination at least a majority of the Board or (3)
             whose election or nomination to the Board was approved by
             individuals referred to in clauses (1) or (2) above constituting
             at the time of such election or nomination at least a majority of
             the Board;

                        (C)  the good-faith determination by the Board that
             any person, entity or group (other than a subsidiary of the
             Company or employee benefit plan of the Company or of a subsidiary
             of the Company) has acquired direct or indirect possession of the
             power to direct or cause to direct the management or policies of
             the Company, whether through the ability to exercise voting power,
             by contract or otherwise;

                        (D)  the merger, consolidation, share exchange or
             similar transaction between the Company and another person or
             entity (other than a subsidiary of the Company) other than a
             merger or share exchange in which the Company is the surviving or
             acquiring corporation; or


                                      3

<PAGE>

                        (E)  the sale or transfer (in one transaction or a
             series of related transactions) of all or substantially all of
             the Company's assets to another person or entity (other than a
             subsidiary of the Company) whether assisted or unassisted,
             voluntary or involuntary.

                  (ii)  A "REORGANIZATION" means the occurrence of any one or
more of the following (except for any of the following that occur as part of
the Reorganization): (A) the merger, consolidation, share exchange or similar
transaction between the Company and any other person or entity, whether
effected as a single transaction or a series of related transactions, with
the Company remaining as the continuing or surviving entity of that merger or
consolidation and the Common Stock remaining outstanding and not changed into
or exchanged for stock or other securities of any other person or entity or
of the Company, cash, or other property; (B) the merger, consolidation, share
exchange or similar transaction between the Company and any other person or
entity, whether effected as a single transaction or a series of related
transactions, with (1) the Company not being the continuing or surviving
entity of that transaction or (2) the Company remaining as the continuing or
surviving entity of that transaction but all or part of the outstanding
shares of Common Stock are changed into or exchanged for stock or other
securities of any other entity or the Company, cash, or other property; or
(C) the transfer, directly or indirectly, of all or substantially all of the
assets of the Company (whether by sale, merger, consolation, liquidation or
otherwise) to any person or entity, whether effected as a single transaction
or a series of related transactions.

                  (iii) "VOTING SECURITIES" means any securities that are
entitled to vote generally in the election of director, in the admission of
general partners or in the selection of any other similar governing body.

             (b)  ADJUSTMENT. The number of Option Shares and the Exercise
Price shall be subject to adjustment from time to time, as follows:

                  (i)   If at any time the Company shall subdivide as a whole
(by reclassification, stock split, issuance of a distribution on Common Stock
payable in Common Stock, or otherwise) the number of shares of Common Stock
then outstanding into a greater number of shares of Common Stock, then (A)
the number of Option Shares that may be acquired under this Option shall be
increased proportionately and (B) the Exercise Price shall be reduced
proportionately, without changing the aggregate purchase price or value as to
which this Option remains exercisable or subject to restrictions.

                  (ii)  If at any time the Company shall consolidate as a
whole (by reclassification, reverse stock split, or otherwise) the number of
shares of Common Stock then outstanding into a lesser number of shares of
Common Stock, then (A) the number of Option Shares that may be acquired under
this Option shall be decreased proportionately and (B) the Exercise Price
shall be increased proportionately, without changing the aggregate purchase
price or value as to which this Option remains exercisable or subject to
restrictions.


                                      4

<PAGE>

                  (iii) Any adjustments under this Section 8(b) shall be made
by the Board, and its determination as to what adjustments shall be made and
the extent thereof shall be final, binding and conclusive.

             (c)  CHANGE IN CONTROL.

                  (i)   Upon the occurrence of a Change in Control, this
Option shall immediately become fully vested and exercisable in full,
including that portion that pursuant to the terms hereof had not yet become
exercisable. If a Change in Control involves a Reorganization or occurs in
connection with a series of related transactions involving a Reorganization
and if such Reorganization is in the form of a transaction described in
Section 8(a)(ii)(B) or (C) and as part of such Reorganization shares of
Common Stock, other securities, cash, or property shall be issuable or
deliverable in exchange for Common Stock (the "CHANGE IN CONTROL
CONSIDERATION"), then the holder of this Option shall be entitled to purchase
or receive (in lieu of the Option Shares that such holder would otherwise be
entitled to purchase or receive), as appropriate, the Change in Control
Consideration to which that number of Option Shares would have been entitled
in connection with such Reorganization and at an aggregate exercise price
equal to the Exercise Price that would have been payable if that number of
Option Shares had been purchased on the exercise of this Option immediately
before the consummation of the Reorganization.

                  (ii)  Notwithstanding anything to the contrary contained
herein, in the event of a Change in Control, the Company shall have the right
(the "CASH-OUT RIGHT"), upon written notice (the "CASH-OUT NOTICE") delivered
to the holder of this Option no later than five (5) business days prior to
the closing of such Change in Control (the "CLOSING DATE"), to terminate this
Option, in whole or in part, on or prior to the Closing Date in exchange for
the Company's payment in cash (the "CASH-OUT PAYMENT") to the holder in an
amount equal to (i) the per share Change in Control Consideration multiplied
by the number of Option Shares subject to the Cash-Out Right, less (ii) the
aggregate exercise price equal to the Exercise Price that would have been
payable if that number of Option Shares had been purchased on the exercise of
this Option immediately before the Change in Control. The Cash-Out Notice
shall set forth the number of Option Shares with respect to which the Company
will exercise the Cash-Out Right (the "CASH-OUT SHARES") and the Cash-Out
Payment payable to the holder therefor. To the extent the Company exercises
the Cash-Out Right, (A) the acceleration provision set forth in Section
8(c)(i) shall not apply to the Cash-Out Shares and (B) this Option shall be
terminated as of the Closing Date with respect to the Cash-Out Shares and
shall thereafter represent only the right to receive the Cash-Out Payment.
The Cash-Out Payment shall be paid as soon as practicable after the Closing
Date. If the Cash-Out Right shall have been exercised by the Company only in
part, then, unless this Option has expired, the holder shall be entitled to
receive the Change in Control Consideration under Section 8(c)(i) with
respect to the remaining Option Shares for which this Option may then be
exercisable.

             (d)  In the event of any adjustment in the number of shares
covered by this Option, any fractional shares resulting from such adjustment
shall be disregarded and this Option shall cover only the number of full
shares resulting from such adjustment.


                                      5

<PAGE>

         9.  NO RIGHTS OR LIABILITIES AS A SHAREHOLDER. This Option shall not
entitle the holder hereof to any voting rights or other rights as a
shareholder of the Company. No provision of this Option, in the absence of
affirmative action by the holder hereof to purchase Option Shares, and no
mere enumeration herein of the rights or privileges of the holder hereof,
shall give rise to any liability of such holder for the Exercise Price or as
a shareholder of the Company, whether such liability is asserted by the
Company or by creditors of the Company.

         10. EXERCISE WITHOUT REGISTRATION. If, at the time of the surrender
of this Option in connection with any exercise hereof, the Option Shares
issuable hereunder shall not be registered under the Securities Act of 1933,
as amended (the "SECURITIES ACT"), and under applicable state securities or
blue sky laws, the Company may require, as a condition of allowing such
exercise, (i) that the holder of this Option furnish to the Company a written
opinion of counsel, which opinion and counsel are acceptable to the Company,
to the effect that such exercise may be made without registration under said
Act and under applicable state securities or blue sky laws and (ii) that the
holder execute and deliver to the Company an investment letter in form and
substance acceptable to the Company. Except in respect of a sale pursuant to
an effective registration statement under the Securities Act, the holder of
this Option, by taking and holding the same, represents to the Company that
such holder is acquiring this Option for investment and not with a view to
the distribution thereof.

         11. RESTRICTION ON ISSUANCE OF SHARES. The Company shall not be
obligated to sell or issue any Option Shares pursuant to this Agreement if
such sale or issuance, in the judgment of the Company and the Company's
counsel, might constitute a violation by the Company of any provision of law,
including without limitation the provisions of the Securities Act. The
Company may, but shall not be required to, register or qualify the sale of
any Option Shares under the Securities Act or any other applicable law. The
Company shall not be obligated to take any affirmative action in order to
cause the grant or exercise of this Option or the issuance or sale of any
Option Shares pursuant thereto to comply with any law.

         12. RESTRICTIONS ON TRANSFER. Except as provided in Section 5, this
Option may not be transferred. The Option Shares may only be transferred in
accordance with all applicable federal and state securities or blue sky laws
and the regulations thereunder, including without limitation, the Securities
Act.

         13. REPRESENTATIONS, WARRANTIES, ACKNOWLEDGMENTS AND AGREEMENTS OF
OPTIONEE. Optionee hereby acknowledges and agrees that by giving Notice of
Exercise of this Option, Optionee is making the following representations and
warranties:

             (a)  INVESTMENT INTENT. The Option Shares are purchased only for
investment, for Optionee's own account, and without any present intention to
sell or distribute the Option Shares.

             (b)  ABSENCE OF REGISTRATION. Optionee acknowledges and agrees
that this Option and the Option Shares have not been registered under the
Securities Act or the securities laws of any jurisdiction and accordingly
will not be transferable except as permitted under one or more exemptions
from the registration requirements of such laws or upon satisfaction of the


                                      6

<PAGE>

registration and prospectus delivery requirements of such laws. Therefore,
the Option Shares must be held indefinitely unless they are subsequently
registered under the Securities Act and all other applicable securities laws
or an exemption from such registration is available. Optionee understands
that the certificates, if any, evidencing the Option Shares may be imprinted
with a legend which prohibits the transfer thereof unless they are registered
or unless the Company receives an opinion of counsel reasonably satisfactory
to the Company that such registration is not required. Optionee understands
that a stop transfer instruction may be in effect with respect to transfer of
Option Shares consistent with the requirements of the securities laws.

             (c)  PROFESSIONAL ADVICE. The acceptance and exercise of this
Option and the sale of the Option Shares has consequences under federal and
state tax and securities laws which may vary depending upon the individual
circumstances of Optionee. Accordingly, Optionee acknowledges that Optionee
has been advised to consult his/her personal legal and tax advisor in
connection with this Agreement and his/her dealings with respect to this
Option and the Option Shares. Optionee further acknowledges that the Company
has made no warranties or representations to Holder with respect to the
income tax consequences of the grant and exercise of this Option or the sale
of the Option Shares and Optionee is in no manner relying on the Company or
its representatives for an assessment of such consequences.

         14. REPLACEMENT OF OPTION. Upon receipt of evidence reasonably
satisfactory to the Company of the loss, theft, destruction, or mutilation of
this Option and, in the case of any such loss, theft, or destruction, upon
delivery of an indemnity agreement reasonably satisfactory in form and amount
to the Company, or, in the case of any such mutilation, upon surrender and
cancellation of this Option, the Company, at its expense, will execute and
deliver, in lieu thereof, a new Option of like tenor.

         15. NOTICES. All notices, requests, and other communications
required or permitted to be given or delivered hereunder shall be in writing,
and shall be personally delivered, or shall be sent by certified or
registered mail, postage prepaid and addressed, to the parties at their
respective addresses set forth below their signatures, or at such other
address as shall have been designated by a party by notice delivered to the
other. All notices, requests, and other communications shall be deemed to
have been given either at the time of the delivery thereof to (or the receipt
by, in the case of a telegram, telex or telecopy) the person entitled to
receive such notice at the address of such person for purposes of this
Section 15, or, if mailed, at the completion of the third (3rd) day following
the time of such mailing thereof to such address, as the case may be.

         16. MISCELLANEOUS.

             (a)  ASSIGNMENT; BINDING EFFECT. Subject to the limitations set
forth in this Agreement, this Agreement shall be binding upon and inure to
the benefit of the executors, administrators, heirs, legal representatives,
and successors of the parties hereto; PROVIDED, HOWEVER, that Optionee may
not assign any of Optionee's rights under this Agreement, other than by will
or the laws of descent and distribution.


                                      7

<PAGE>

             (b)  DAMAGES. Optionee shall be liable to the Company for all
costs and damages, including incidental and consequential damages, resulting
from a disposition of Option Shares which is not in conformity with the
provisions of this Agreement.

             (c)  GOVERNING LAW. This Agreement shall be governed by, and
construed in accordance with, the laws of the State of Washington without
regard to its conflicts of law principles.

             (d)  AMENDMENTS. This Option and any provision hereof may not be
changed, waived, discharged, or terminated orally, except by an instrument in
writing signed by the parties.

             (e)  HEADINGS. The descriptive headings of the several Sections
of this Option are inserted for purposes of reference only, and shall not
affect the meaning or construction of any of the provisions hereof.

             (f)  RIGHTS OF OPTIONEE. Neither this Option nor the exercise of
any portion of this Option shall confer upon Optionee any right to, or
guarantee of, continued employment by the Company, or in any way limit the
right of the Company to terminate Optionee's relationship with the Company.

         IN WITNESS WHEREOF, the parties have executed this Agreement as of
the date first written above.



COWLITZ BANCORPORATION                   --------------------------------------
927 Commerce Avenue                      --------------------------------------
Longview, WA 98632                       --------------------------------------


By:
    -------------------------------      --------------------------------------
    Name:                                (Signature)
    Title:






                                      8

<PAGE>



                                   SCHEDULE 1
                                  NBOC OPTIONS


<TABLE>
<CAPTION>

Date of Grant              Number of Shares          Exercise Price
-------------              ----------------          --------------
<S>                        <C>                       <C>










</TABLE>


                                      9

<PAGE>

                           FORM OF EXERCISE AGREEMENT


                                                Dated              ,         .
                                                      ------------- ---------

To:      COWLITZ BANCORPORATION
         927 Commerce Avenue
         Longbview, WA 98632

         The undersigned, pursuant to the provisions set forth in the Option
enclosed herewith, hereby irrevocably elects to exercise the purchase right
represented by the Option and agrees to purchase _____ shares of Common Stock
covered by such Option, and hereby makes payment in full for such shares at
the price per share provided by such Option in cash or by certified or
official bank check in the amount of $_____ for such shares and payment of
$_____ for any applicable taxes resulting from such exercise. Please issue a
certificate or certificates for such shares of Common Stock in the name of
and pay any cash for any fractional share to the undersigned at the address
set forth below. If said number of shares of Common Stock shall not be all
the shares purchasable under the Option, a new Option Agreement is to be
issued in the name of the above covering the balance of the shares
purchasable thereunder less any fraction of a share paid in cash. The
undersigned hereby confirms the representations, warranties and agreements
set forth in the Option Agreement.



                                       HOLDER:


                                       ---------------------------------------
                                       (Signature)

                                       Name:
                                             ---------------------------------
                                       Address:
                                                ------------------------------

                                                ------------------------------


                                      10


<PAGE>

                                OPTION AGREEMENT

         This OPTION AGREEMENT ("AGREEMENT"), dated September 14, 1999, is
made and entered into between Cowlitz Bancorporation, a Washington
corporation (the "COMPANY") and John Holloway, Jr., an individual
("OPTIONEE").

         WHEREAS, the Company, Cowlitz Bank, a corporation chartered under
the banking laws of the State of Washington ("COWLITZ BANK") and Northen Bank
of Commerce, a corporation chartered under the banking laws of the State of
Oregon ("NBOC"), have entered into an Agreement and Plan of Merger of even
date herewith pursuant to which NBOC has agreed to merge with and into
Cowlitz Bank, with Cowlitz Bank being the survivor (the "MERGER");

         WHEREAS, in connection with the Merger, Optionee has entered into an
employment agreement with Cowlitz Bank (the "COWLITZ EMPLOYMENT AGREEMENT")
pursuant to which the Company has agreed to grant Optionee this Option (as
hereinafter defined) in exchange for certain agreements by Optionee;

         NOW THEREFORE, in consideration of the foregoing and the mutual
covenants and agreements set forth herein, the parties hereto agree as
follows:

         1.  SURRENDER OF NBOC OPTIONS AND CERTAIN PAYMENTS.

             (a)  Optionee hereby agrees to surrender to NBOC, prior to the
effective date of the Merger (the "EFFECTIVE DATE"), all unexercised options
to purchase shares of NBOC's common stock ("NBOC OPTIONS") held by Optionee
as of the date of this Agreement. Optionee represents and warrants that
SCHEDULE 1 sets forth a true and complete list of all NBOC Options held by
Optionee as of the date of this Agreement. Optionee further agrees that from
the date of this Agreement until the Effective Date, Optionee shall not
exercise any NBOC Option, in whole or in part.

             (b)  The parties recognize that Optionee may be entitled to
compensation from NBOC in connection with a change in control of NBOC
pursuant to Optionee's Employment Agreement with NBOC dated August 23, 1994,
as amended by Amendment between Optionee and NBOC dated as of February 28,
1997, and that the consummation of the Merger constitutes a change in control
of NBOC for such purpose. Optionee hereby agrees that the Company's grant of
this Option to Optionee shall satisfy in full all of NBOC's obligations (and
any obligations of Cowlitz Bank as successor to NBOC) under such employment
agreement or otherwise arising from a change in control of NBOC, if any.

         2.  GRANT OF OPTION. In consideration of Optionee's agreement to
enter into the Employment Agreement and Optionee's agreements in Section 1,
pursuant to the terms and conditions set forth herein, the Company hereby
grants to Optionee an option ("OPTION") to purchase, at any time or from time
to time during the Exercise Period (as defined in Section 3), 150,000 shares
of Common Stock of the Company, no par value (the "COMMON STOCK"), at a price
per share equal to $12.00 (the "EXERCISE PRICE"). The shares of Common Stock
issuable under this Option are hereinafter referred to as the "OPTION SHARES."

<PAGE>

         3.  VESTING SCHEDULE; EXERCISE PERIOD. This Option shall vest as
follows: (i) 20% shall be immediately vested as of the Effective Date and
(ii) the balance shall vest in four (4) equal annual installments on the
first through fourth anniversaries of the Effective Date. To the extent
vested, this Option may be exercised at any time or from time to time on or
after the Effective Date until the tenth (10th) anniversary of the Effective
Date (the "EXERCISE PERIOD"). Upon expiration of the Exercise Period, this
Option shall terminate.

         4.  EXERCISE; ISSUANCE OF CERTIFICATES; PAYMENT FOR OPTION SHARES.
Subject to the terms and conditions set forth herein, this Option may be
exercised by the holder hereof, in whole or in part, by (i) the delivery of
this Agreement together with a completed exercise agreement in the form
attached hereto (the "EXERCISE AGREEMENT"), to the Company during normal
business hours on any business day at the Company's principal executive
offices (or such other office or agency of the Company as it may designate by
notice to the holder hereof), (ii) paying in full to the Company, in cash or
by certified or official bank check, the Exercise Price for the Option Shares
specified in the Exercise Agreement and (ii) paying in full to the Company,
in cash or by certified or official bank check, any taxes applicable to the
exercise of this Option and delivery of the Option Shares, including without
limitation, stock transfer and withholding taxes. The Option Shares so
purchased shall be deemed to be issued to the holder hereof (or such holder's
designee) as the record owner of such shares as of the close of business on
the date on which this Agreement shall have been surrendered, the completed
Exercise Agreement delivered, and payment in full made for the Option Shares
(together with any applicable stock transfer and withholding taxes) as set
forth herein. Certificates for the Option Shares so purchased, representing
the aggregate number of shares specified in the Exercise Agreement, shall be
delivered to the holder hereof within a reasonable time, not exceeding ten
(10) business days, after this Option shall have been so exercised. The
certificates so delivered shall be in such denominations as may be requested
by the holder hereof and shall be registered in the name of such holder or,
if the Company consents in writing (which consent shall be at the sole
discretion of the Company) such other name as shall be designated by such
holder. If this Option shall have been exercised only in part, then, unless
this Option has expired, the Company shall, at its expense, at the time of
delivery of such certificates, deliver to the holder a new Option Agreement
representing the number of shares with respect to which this Option shall not
then have been exercised.

         5.  DEATH OF OPTIONEE. In the event of Optionee's death, this Option
and this Agreement shall be deemed to be assigned and transferred in
accordance with Optionee's will or the applicable laws of descent and
distribution, as the case may be, and this Agreement shall be binding upon
and inure to the benefit of Optionee's executors, administrators or heirs, as
applicable.

         6.  NO FRACTIONAL SHARES. No fractional shares of Common Stock are
to be issued upon the exercise of this Option, but the Company shall pay a
cash adjustment in respect of any fractional share which would otherwise be
issuable in an amount equal to the same fraction of the Exercise Price of a
share of Common Stock on the date of such exercise.

         7.  CERTAIN AGREEMENTS OF THE COMPANY. The Company hereby agrees as
follows:


                                      2

<PAGE>

             (a)  SHARES TO BE FULLY PAID. All Option Shares will, upon
issuance pursuant hereto, be duly authorized, validly issued, fully paid, and
nonassessable and free from all liens, encumbrances and security interests
with respect to the issue thereof.

             (b)  RESERVATION OF SHARES. During the Exercise Period, the
Company shall at all times have authorized, and reserved for the purpose of
issue upon exercise of this Option, a sufficient number of shares of Common
Stock to provide for the exercise of this Option.

         8.  EFFECT OF CERTAIN EVENTS.

             (a)  CERTAIN DEFINITIONS. As used in this Section 8:

                  (i)   A "CHANGE IN CONTROL" means the event that is deemed
to have occurred if:

                        (A)  the acquisition of ownership, directly or
             indirectly, beneficially or of record, by any person, entity or
             group (within the meaning of the Securities Exchange Act of 1934
             and the rules promulgated thereunder as in effect on the date of
             this Agreement), other than the Company, a subsidiary of the
             Company or any employee benefit plan of the Company or of any
             subsidiary of the Company, of shares representing more then 50%
             of (1) the common stock of the Company, (2) the aggregate voting
             power of the Company's Voting Securities (as defined below) or
             (3) the total market value of the Company's Voting Securities;

                        (B)  a majority of the Company's board of directors
             (the "BOARD") ceasing to be composed of individuals (1) who were
             members of the Board on the date of this Agreement, (ii) whose
             election or nomination to the Board was approved by individuals
             referred to in clause (1) above constituting at the time of such
             election or nomination at least a majority of the Board or (3)
             whose election or nomination to the Board was approved by
             individuals referred to in clauses (1) or (2) above constituting
             at the time of such election or nomination at least a majority of
             the Board;

                        (C)  the good-faith determination by the Board that
             any person, entity or group (other than a subsidiary of the
             Company or employee benefit plan of the Company or of a
             subsidiary of the Company) has acquired direct or indirect
             possession of the power to direct or cause to direct the
             management or policies of the Company, whether through the
             ability to exercise voting power, by contract or otherwise;

                        (D)  the merger, consolidation, share exchange or
             similar transaction between the Company and another person or
             entity (other than a subsidiary of the Company) other than a
             merger or share exchange in which the Company is the surviving
             or acquiring corporation; or


                                      3

<PAGE>

                        (E)  the sale or transfer (in one transaction or a
             series of related transactions) of all or substantially all of
             the Company's assets to another person or entity (other than a
             subsidiary of the Company) whether assisted or unassisted,
             voluntary or involuntary.

                  (ii)  A "REORGANIZATION" means the occurrence of any one or
more of the following (except for any of the following that occur as part of
the Reorganization): (A) the merger, consolidation, share exchange or similar
transaction between the Company and any other person or entity, whether
effected as a single transaction or a series of related transactions, with
the Company remaining as the continuing or surviving entity of that merger or
consolidation and the Common Stock remaining outstanding and not changed into
or exchanged for stock or other securities of any other person or entity or
of the Company, cash, or other property; (B) the merger, consolidation, share
exchange or similar transaction between the Company and any other person or
entity, whether effected as a single transaction or a series of related
transactions, with (1) the Company not being the continuing or surviving
entity of that transaction or (2) the Company remaining as the continuing or
surviving entity of that transaction but all or part of the outstanding
shares of Common Stock are changed into or exchanged for stock or other
securities of any other entity or the Company, cash, or other property; or
(C) the transfer, directly or indirectly, of all or substantially all of the
assets of the Company (whether by sale, merger, consolation, liquidation or
otherwise) to any person or entity, whether effected as a single transaction
or a series of related transactions.

                  (iii) "VOTING SECURITIES" means any securities that are
entitled to vote generally in the election of director, in the admission of
general partners or in the selection of any other similar governing body.

             (b)  ADJUSTMENT. The number of Option Shares and the Exercise
Price shall be subject to adjustment from time to time, as follows:

                  (i)   If at any time the Company shall subdivide as a whole
(by reclassification, stock split, issuance of a distribution on Common Stock
payable in Common Stock, or otherwise) the number of shares of Common Stock
then outstanding into a greater number of shares of Common Stock, then (A)
the number of Option Shares that may be acquired under this Option shall be
increased proportionately and (B) the Exercise Price shall be reduced
proportionately, without changing the aggregate purchase price or value as to
which this Option remains exercisable or subject to restrictions.

                  (ii)  If at any time the Company shall consolidate as a
whole (by reclassification, reverse stock split, or otherwise) the number of
shares of Common Stock then outstanding into a lesser number of shares of
Common Stock, then (A) the number of Option Shares that may be acquired under
this Option shall be decreased proportionately and (B) the Exercise Price
shall be increased proportionately, without changing the aggregate purchase
price or value as to which this Option remains exercisable or subject to
restrictions.


                                      4

<PAGE>

                  (iii) Any adjustments under this Section 8(b) shall be made
by the Board, and its determination as to what adjustments shall be made and
the extent thereof shall be final, binding and conclusive.

             (c)  Change in Control.

                  (i)   Upon the occurrence of a Change in Control, this
Option shall immediately become fully vested and exercisable in full,
including that portion that pursuant to the terms hereof had not yet become
exercisable. If a Change in Control involves a Reorganization or occurs in
connection with a series of related transactions involving a Reorganization
and if such Reorganization is in the form of a transaction described in
Section 8(a)(ii)(B) or (C) and as part of such Reorganization shares of
Common Stock, other securities, cash, or property shall be issuable or
deliverable in exchange for Common Stock (the "CHANGE IN CONTROL
CONSIDERATION"), then the holder of this Option shall be entitled to purchase
or receive (in lieu of the Option Shares that such holder would otherwise be
entitled to purchase or receive), as appropriate, the Change in Control
Consideration to which that number of Option Shares would have been entitled
in connection with such Reorganization and at an aggregate exercise price
equal to the Exercise Price that would have been payable if that number of
Option Shares had been purchased on the exercise of this Option immediately
before the consummation of the Reorganization.

                  (ii)  Notwithstanding anything to the contrary contained
herein, in the event of a Change in Control, the Company shall have the right
(the "CASH-OUT RIGHT"), upon written notice (the "CASH-OUT NOTICE") delivered
to the holder of this Option no later than five (5) business days prior to
the closing of such Change in Control (the "CLOSING DATE"), to terminate this
Option, in whole or in part, on or prior to the Closing Date in exchange for
the Company's payment in cash (the "CASH-OUT PAYMENT") to the holder in an
amount equal to (i) the per share Change in Control Consideration multiplied
by the number of Option Shares subject to the Cash-Out Right, less (ii) the
aggregate exercise price equal to the Exercise Price that would have been
payable if that number of Option Shares had been purchased on the exercise of
this Option immediately before the Change in Control. The Cash-Out Notice
shall set forth the number of Option Shares with respect to which the Company
will exercise the Cash-Out Right (the "CASH-OUT SHARES") and the Cash-Out
Payment payable to the holder therefor. To the extent the Company exercises
the Cash-Out Right, (A) the acceleration provision set forth in Section
8(c)(i) shall not apply to the Cash-Out Shares and (B) this Option shall be
terminated as of the Closing Date with respect to the Cash-Out Shares and
shall thereafter represent only the right to receive the Cash-Out Payment.
The Cash-Out Payment shall be paid as soon as practicable after the Closing
Date. If the Cash-Out Right shall have been exercised by the Company only in
part, then, unless this Option has expired, the holder shall be entitled to
receive the Change in Control Consideration under Section 8(c)(i) with
respect to the remaining Option Shares for which this Option may then be
exercisable.

             (d)  In the event of any adjustment in the number of shares
covered by this Option, any fractional shares resulting from such adjustment
shall be disregarded and this Option shall cover only the number of full
shares resulting from such adjustment.


                                      5

<PAGE>

         9.  NO RIGHTS OR LIABILITIES AS A SHAREHOLDER. This Option shall not
entitle the holder hereof to any voting rights or other rights as a
shareholder of the Company. No provision of this Option, in the absence of
affirmative action by the holder hereof to purchase Option Shares, and no
mere enumeration herein of the rights or privileges of the holder hereof,
shall give rise to any liability of such holder for the Exercise Price or as
a shareholder of the Company, whether such liability is asserted by the
Company or by creditors of the Company.

         10. EXERCISE WITHOUT REGISTRATION. If, at the time of the surrender
of this Option in connection with any exercise hereof, the Option Shares
issuable hereunder shall not be registered under the Securities Act of 1933,
as amended (the "SECURITIES ACT"), and under applicable state securities or
blue sky laws, the Company may require, as a condition of allowing such
exercise, (i) that the holder of this Option furnish to the Company a written
opinion of counsel, which opinion and counsel are acceptable to the Company,
to the effect that such exercise may be made without registration under said
Act and under applicable state securities or blue sky laws and (ii) that the
holder execute and deliver to the Company an investment letter in form and
substance acceptable to the Company. Except in respect of a sale pursuant to
an effective registration statement under the Securities Act, the holder of
this Option, by taking and holding the same, represents to the Company that
such holder is acquiring this Option for investment and not with a view to
the distribution thereof.

         11. RESTRICTION ON ISSUANCE OF SHARES. The Company shall not be
obligated to sell or issue any Option Shares pursuant to this Agreement if
such sale or issuance, in the judgment of the Company and the Company's
counsel, might constitute a violation by the Company of any provision of law,
including without limitation the provisions of the Securities Act. The
Company may, but shall not be required to, register or qualify the sale of
any Option Shares under the Securities Act or any other applicable law. The
Company shall not be obligated to take any affirmative action in order to
cause the grant or exercise of this Option or the issuance or sale of any
Option Shares pursuant thereto to comply with any law.

         12. RESTRICTIONS ON TRANSFER. Except as provided in Section 5, this
Option may not be transferred. The Option Shares may only be transferred in
accordance with all applicable federal and state securities or blue sky laws
and the regulations thereunder, including without limitation, the Securities
Act.

         13. REPRESENTATIONS, WARRANTIES, ACKNOWLEDGMENTS AND AGREEMENTS OF
OPTIONEE. Optionee hereby acknowledges and agrees that by giving Notice of
Exercise of this Option, Optionee is making the following representations and
warranties:

             (a)  INVESTMENT INTENT. The Option Shares are purchased only for
investment, for Optionee's own account, and without any present intention to
sell or distribute the Option Shares.

             (b)  ABSENCE OF REGISTRATION. Optionee acknowledges and agrees
that this Option and the Option Shares have not been registered under the
Securities Act or the securities laws of any jurisdiction and accordingly
will not be transferable except as permitted under one or more exemptions
from the registration requirements of such laws or upon satisfaction of the


                                      6

<PAGE>

registration and prospectus delivery requirements of such laws. Therefore,
the Option Shares must be held indefinitely unless they are subsequently
registered under the Securities Act and all other applicable securities laws
or an exemption from such registration is available. Optionee understands
that the certificates, if any, evidencing the Option Shares may be imprinted
with a legend which prohibits the transfer thereof unless they are registered
or unless the Company receives an opinion of counsel reasonably satisfactory
to the Company that such registration is not required. Optionee understands
that a stop transfer instruction may be in effect with respect to transfer of
Option Shares consistent with the requirements of the securities laws.

             (c)  PROFESSIONAL ADVICE. The acceptance and exercise of this
Option and the sale of the Option Shares has consequences under federal and
state tax and securities laws which may vary depending upon the individual
circumstances of Optionee. Accordingly, Optionee acknowledges that Optionee
has been advised to consult his/her personal legal and tax advisor in
connection with this Agreement and his/her dealings with respect to this
Option and the Option Shares. Optionee further acknowledges that the Company
has made no warranties or representations to Holder with respect to the
income tax consequences of the grant and exercise of this Option or the sale
of the Option Shares and Optionee is in no manner relying on the Company or
its representatives for an assessment of such consequences.

         14. REPLACEMENT OF OPTION. Upon receipt of evidence reasonably
satisfactory to the Company of the loss, theft, destruction, or mutilation of
this Option and, in the case of any such loss, theft, or destruction, upon
delivery of an indemnity agreement reasonably satisfactory in form and amount
to the Company, or, in the case of any such mutilation, upon surrender and
cancellation of this Option, the Company, at its expense, will execute and
deliver, in lieu thereof, a new Option of like tenor.

         15. NOTICES. All notices, requests, and other communications
required or permitted to be given or delivered hereunder shall be in writing,
and shall be personally delivered, or shall be sent by certified or
registered mail, postage prepaid and addressed, to the parties at their
respective addresses set forth below their signatures, or at such other
address as shall have been designated by a party by notice delivered to the
other. All notices, requests, and other communications shall be deemed to
have been given either at the time of the delivery thereof to (or the receipt
by, in the case of a telegram, telex or telecopy) the person entitled to
receive such notice at the address of such person for purposes of this
Section 15, or, if mailed, at the completion of the third (3rd) day following
the time of such mailing thereof to such address, as the case may be.

         16. MISCELLANEOUS.

             (a)  ASSIGNMENT; BINDING EFFECT. Subject to the limitations set
forth in this Agreement, this Agreement shall be binding upon and inure to
the benefit of the executors, administrators, heirs, legal representatives,
and successors of the parties hereto; PROVIDED, HOWEVER, that Optionee may
not assign any of Optionee's rights under this Agreement, other than by will
or the laws of descent and distribution.


                                      7

<PAGE>

             (b)  DAMAGES. Optionee shall be liable to the Company for all
costs and damages, including incidental and consequential damages, resulting
from a disposition of Option Shares which is not in conformity with the
provisions of this Agreement.

             (c)  GOVERNING LAW. This Agreement shall be governed by, and
construed in accordance with, the laws of the State of Washington without
regard to its conflicts of law principles.

             (d)  AMENDMENTS. This Option and any provision hereof may not be
changed, waived, discharged, or terminated orally, except by an instrument in
writing signed by the parties.

             (e)  HEADINGS. The descriptive headings of the several Sections
of this Option are inserted for purposes of reference only, and shall not
affect the meaning or construction of any of the provisions hereof.

             (f)  RIGHTS OF OPTIONEE. Neither this Option nor the exercise of
any portion of this Option shall confer upon Optionee any right to, or
guarantee of, continued employment by the Company, or in any way limit the
right of the Company to terminate Optionee's relationship with the Company.

         IN WITNESS WHEREOF, the parties have executed this Agreement as of
the date first written above.


COWLITZ BANCORPORATION                      JOHN HOLLOWAY, JR.
927 Commerce Avenue                         1001 SW Fifth, Suite 250
Longview, WA 98632                          Portland, Oregon 97204


By: /s/ Charles W. Jarrett                  /s/ John Holloway, Jr.
   --------------------------------         ---------------------------------
   Name: Charles W. Jarrett                 (Signature)
   Title: President and Chief
          Operating Officer






                                      8

<PAGE>



                                   SCHEDULE 1
                                  NBOC OPTIONS


<TABLE>
<CAPTION>

Date of Grant     Number of Shares          Exercise Price
-------------     ----------------          --------------
<S>               <C>                       <C>

8/24/94           109,046                   $5.74
8/24/94           68,783                    $5.74
8/24/94           35,759                    $5.74
</TABLE>








                                      9

<PAGE>



                           FORM OF EXERCISE AGREEMENT


                                                Dated              ,         .
                                                      ------------- ---------

To:      COWLITZ BANCORPORATION
         927 Commerce Avenue
         Longbview, WA 98632

         The undersigned, pursuant to the provisions set forth in the Option
enclosed herewith, hereby irrevocably elects to exercise the purchase right
represented by the Option and agrees to purchase _____ shares of Common Stock
covered by such Option, and hereby makes payment in full for such shares at
the price per share provided by such Option in cash or by certified or
official bank check in the amount of $_____ for such shares and payment of
$_____ for any applicable taxes resulting from such exercise. Please issue a
certificate or certificates for such shares of Common Stock in the name of
and pay any cash for any fractional share to the undersigned at the address
set forth below. If said number of shares of Common Stock shall not be all
the shares purchasable under the Option, a new Option Agreement is to be
issued in the name of the above covering the balance of the shares
purchasable thereunder less any fraction of a share paid in cash. The
undersigned hereby confirms the representations, warranties and agreements
set forth in the Option Agreement.



                                       HOLDER:


                                       ---------------------------------------
                                       (Signature)

                                       Name:
                                             ---------------------------------
                                       Address:
                                                ------------------------------

                                                ------------------------------


                                      10


<PAGE>

            SCHEDULE OF OPTIONEES TO FORM OF OPTION AGREEMENT

<TABLE>
<CAPTION>

                 <S>                         <C>
                 Optionee                    Number of Shares
                 --------                    ----------------
                 William V. Spicer                21,400
                 Christopher Brown                21,400
                 John F. Walrod                   21,400
                 Kurt G. Wollenberg               17,266
</TABLE>

<PAGE>


                                OPTION AGREEMENT

         (A) Name of Optionee:
                               ----------------------------------
         (B) Number of Shares:
                               ----------------------------------

         This OPTION AGREEMENT ("AGREEMENT"), dated September 14, 1999, is
made and entered into between Cowlitz Bancorporation, a Washington
corporation (the "COMPANY") and the person named in Item (A) above
("OPTIONEE").

         WHEREAS, the Company, Cowlitz Bank, a corporation chartered under
the banking laws of the State of Washington ("COWLITZ BANK") and Northern
Bank of Commerce, a corporation chartered under the banking laws of the State
of Oregon ("NBOC") have entered into an Agreement and Plan of Merger of even
date herewith pursuant to which NBOC has agreed to merge with and into
Cowlitz Bank, with Cowlitz Bank being the survivor (the "MERGER");

         WHEREAS, in connection with the Merger, Optionee has agreed to
surrender certain options for shares of NBOC common stock and the Company has
agreed to grant Optionee this Option (as hereinafter defined);

         NOW THEREFORE, in consideration of the foregoing and the mutual
covenants and agreements set forth herein, the parties hereto agree as
follows:

         1.  SURRENDER OF NBOC OPTIONS. Optionee hereby agrees to surrender
to NBOC, prior to the effective date of the Merger (the "Effective Date"),
all unexercised options to purchase shares of NBOC common stock ("NBOC
Options") held by Optionee as of the date of this Agreement. Optionee
represents and warrants that SCHEDULE 1 sets forth a true and complete list
of all NBOC Options held by Optionee as of the date of this Agreement.
Optionee further agrees that from the date of this Agreement until the
Effective Date, Optionee shall not exercise any NBOC Option, in whole or in
part.

         2.  GRANT OF OPTION. Pursuant to the terms and conditions set forth
herein, the Company hereby grants to Optionee an option ("OPTION") to
purchase, at any time or from time to time during the Exercise Period (as
defined in Section 3), the number of shares of Common Stock of the Company,
no par value (the "COMMON STOCK"), specified in Item (B) above at the
Exercise Price. The "EXERCISE PRICE" shall be the per share price payable for
each Option Share obtained by multiplying (i) 1.4 by (ii) the Book Value Per
Common Share of the Company as of the Effective Date, after taking into
account the consummation of the Merger. The "BOOK VALUE PER COMMON SHARE"
shall mean the quotient obtained by dividing (x) total shareholders' equity
of the Company on a consolidated basis by (y) the total number of shares of
Common Stock outstanding as of the Effective Date, in each case as calculated
by the Company in accordance with generally accepted accounting principles
after taking into account the consummation of the Merger. The Company's
calculation of the Book Value Per Common Share shall be binding on the
parties. The shares of Common Stock issuable under this Option are
hereinafter referred to as the "OPTION SHARES."

         3.  EXERCISE PERIOD. This Option is fully vested as of the Effective
Date and may be exercised at any time or from time to time on or after the
Effective Date until the tenth (10th)

<PAGE>

anniversary of the Effective Date (the "EXERCISE PERIOD"). Upon expiration of
the Exercise Period, this Option shall terminate.

         4.  EXERCISE; ISSUANCE OF CERTIFICATES; PAYMENT FOR OPTION SHARES.
Subject to the terms and conditions set forth herein, this Option may be
exercised by the holder hereof, in whole or in part, by (i) the delivery of
this Agreement together with a completed exercise agreement in the form
attached hereto (the "EXERCISE AGREEMENT"), to the Company during normal
business hours on any business day at the Company's principal executive
offices (or such other office or agency of the Company as it may designate by
notice to the holder hereof), (ii) paying in full to the Company, in cash or
by certified or official bank check, the Exercise Price for the Option Shares
specified in the Exercise Agreement and (ii) paying in full to the Company,
in cash or by certified or official bank check, any taxes applicable to the
exercise of this Option and delivery of the Option Shares, including without
limitation, stock transfer and withholding taxes. The Option Shares so
purchased shall be deemed to be issued to the holder hereof (or such holder's
designee) as the record owner of such shares as of the close of business on
the date on which this Agreement shall have been surrendered, the completed
Exercise Agreement delivered, and payment in full made for the Option Shares
(together with any applicable stock transfer and withholding taxes) as set
forth herein. Certificates for the Option Shares so purchased, representing
the aggregate number of shares specified in the Exercise Agreement, shall be
delivered to the holder hereof within a reasonable time, not exceeding ten
(10) business days, after this Option shall have been so exercised. The
certificates so delivered shall be in such denominations as may be requested
by the holder hereof and shall be registered in the name of such holder or,
if the Company consents in writing (which consent shall be at the sole
discretion of the Company) such other name as shall be designated by such
holder. If this Option shall have been exercised only in part, then, unless
this Option has expired, the Company shall, at its expense, at the time of
delivery of such certificates, deliver to the holder a new Option Agreement
representing the number of shares with respect to which this Option shall not
then have been exercised.

         5.  DEATH OF OPTIONEE. In the event of Optionee's death, this Option
and this Agreement shall be deemed to be assigned and transferred in
accordance with Optionee's will or the applicable laws of descent and
distribution, as the case may be, and this Agreement shall be binding upon
and inure to the benefit of Optionee's executors, administrators or heirs, as
applicable.

         6.  NO FRACTIONAL SHARES. No fractional shares of Common Stock are
to be issued upon the exercise of this Option, but the Company shall pay a
cash adjustment in respect of any fractional share which would otherwise be
issuable in an amount equal to the same fraction of the Exercise Price of a
share of Common Stock on the date of such exercise.

         7.  CERTAIN AGREEMENTS OF THE COMPANY. The Company hereby agrees as
follows:

             (a)  SHARES TO BE FULLY PAID. All Option Shares will, upon
issuance pursuant hereto, be duly authorized, validly issued, fully paid, and
nonassessable and free from all liens, encumbrances and security interests
with respect to the issue thereof.


                                      2

<PAGE>

             (b)  RESERVATION OF SHARES. During the Exercise Period, the
Company shall at all times have authorized, and reserved for the purpose of
issue upon exercise of this Option, a sufficient number of shares of Common
Stock to provide for the exercise of this Option.

         8.  EFFECT OF CERTAIN EVENTS.

             (a)  CERTAIN DEFINITIONS. As used in this Section 8:

                  (i)   A "CHANGE IN CONTROL" means the event that is deemed
to have occurred if:

                        (A)  the acquisition of ownership, directly or
             indirectly, beneficially or of record, by any person, entity or
             group (within the meaning of the Securities Exchange Act of 1934
             and the rules promulgated thereunder as in effect on the date of
             this Agreement), other than the Company, a subsidiary of the
             Company or any employee benefit plan of the Company or of any
             subsidiary of the Company, of shares representing more then 50%
             of (1) the common stock of the Company, (2) the aggregate voting
             power of the Company's Voting Securities (as defined below) or
             (3) the total market value of the Company's Voting Securities;

                        (B)  a majority of the Company's board of directors
             (the "Board") ceasing to be composed of individuals (1) who were
             members of the Board on the date of this Agreement, (ii) whose
             election or nomination to the Board was approved by individuals
             referred to in clause (1) above constituting at the time of such
             election or nomination at least a majority of the Board or (3)
             whose election or nomination to the Board was approved by
             individuals referred to in clauses (1) or (2) above constituting
             at the time of such election or nomination at least a majority of
             the Board;

                        (C)  the good-faith determination by the Board that any
             person, entity or group (other than a subsidiary of the Company or
             employee benefit plan of the Company or of a subsidiary of the
             Company) has acquired direct or indirect possession of the power
             to direct or cause to direct the management or policies of the
             Company, whether through the ability to exercise voting power, by
             contract or otherwise;

                        (D)  the merger, consolidation, share exchange or
             similar transaction between the Company and another person or
             entity (other than a subsidiary of the Company) other than a
             merger or share exchange in which the Company is the surviving
             or acquiring corporation; or

                        (E)  the sale or transfer (in one transaction or a
             series of related transactions) of all or substantially all of the
             Company's assets to another person or entity (other than a
             subsidiary of the Company) whether assisted or unassisted,
             voluntary or involuntary.


                                      3

<PAGE>

                  (ii)  A "REORGANIZATION" means the occurrence of any one or
more of the following (except for any of the following that occur as part of
the Reorganization): (A) the merger, consolidation, share exchange or similar
transaction between the Company and any other person or entity, whether
effected as a single transaction or a series of related transactions, with
the Company remaining as the continuing or surviving entity of that merger or
consolidation and the Common Stock remaining outstanding and not changed into
or exchanged for stock or other securities of any other person or entity or
of the Company, cash, or other property; (B) the merger, consolidation, share
exchange or similar transaction between the Company and any other person or
entity, whether effected as a single transaction or a series of related
transactions, with (1) the Company not being the continuing or surviving
entity of that transaction or (2) the Company remaining as the continuing or
surviving entity of that transaction but all or part of the outstanding
shares of Common Stock are changed into or exchanged for stock or other
securities of any other entity or the Company, cash, or other property; or
(C) the transfer, directly or indirectly, of all or substantially all of the
assets of the Company (whether by sale, merger, consolation, liquidation or
otherwise) to any person or entity, whether effected as a single transaction
or a series of related transactions.

                  (iii) "VOTING SECURITIES" means any securities that are
entitled to vote generally in the election of director, in the admission of
general partners or in the selection of any other similar governing body.

             (b)  ADJUSTMENT. The number of Option Shares and the Exercise
Price shall be subject to adjustment from time to time, as follows:

                  (i)   If at any time the Company shall subdivide as a whole
(by reclassification, stock split, issuance of a distribution on Common Stock
payable in Common Stock, or otherwise) the number of shares of Common Stock
then outstanding into a greater number of shares of Common Stock, then (A)
the number of Option Shares that may be acquired under this Option shall be
increased proportionately and (B) the Exercise Price shall be reduced
proportionately, without changing the aggregate purchase price or value as to
which this Option remains exercisable or subject to restrictions.

                  (ii)  If at any time the Company shall consolidate as a
whole (by reclassification, reverse stock split, or otherwise) the number of
shares of Common Stock then outstanding into a lesser number of shares of
Common Stock, then (A) the number of Option Shares that may be acquired under
this Option shall be decreased proportionately and (B) the Exercise Price
shall be increased proportionately, without changing the aggregate purchase
price or value as to which this Option remains exercisable or subject to
restrictions.

                  (iii) Any adjustments under this Section 8(b) shall be made
by the Board, and its determination as to what adjustments shall be made and
the extent thereof shall be final, binding and conclusive.

             (c)  CHANGE IN CONTROL.

                  (i)   If a Change in Control involves a Reorganization or
occurs in connection with a series of related transactions involving a
Reorganization and if such


                                      4

<PAGE>

Reorganization is in the form of a transaction described in Section
8(a)(ii)(B) or (C) and as part of such Reorganization shares of Common Stock,
other securities, cash, or property shall be issuable or deliverable in
exchange for Common Stock (the "CHANGE IN CONTROL CONSIDERATION"), then the
holder of this Option shall be entitled to purchase or receive (in lieu of
the Option Shares that such holder would otherwise be entitled to purchase or
receive), as appropriate, the Change in Control Consideration to which that
number of Option Shares would have been entitled in connection with such
Reorganization and at an aggregate exercise price equal to the Exercise Price
that would have been payable if that number of Option Shares had been
purchased on the exercise of this Option immediately before the consummation
of the Reorganization.

             (d)  Notwithstanding anything to the contrary contained herein,
in the event of a Change in Control, the Company shall have the right (the
"CASH-OUT RIGHT"), upon written notice (the "CASH-OUT NOTICE") delivered to
the holder of this Option no later than five (5) business days prior to the
closing of such Change in Control (the "CLOSING DATE"), to terminate this
Option, in whole or in part, on or prior to the Closing Date in exchange for
the Company's payment in cash (the "CASH-OUT PAYMENT") to the holder in an
amount equal to (i) the per share Change in Control Consideration multiplied
by the number of Option Shares subject to the Cash-Out Right, less (ii) the
aggregate exercise price equal to the Exercise Price that would have been
payable if that number of Option Shares had been purchased on the exercise of
this Option immediately before the Change in Control. The Cash-Out Notice
shall set forth the number of Option Shares with respect to which the Company
will exercise the Cash-Out Right (the "CASH-OUT SHARES") and the Cash-Out
Payment payable to the holder therefor. To the extent the Company exercises
the Cash-Out Right, this Option shall be terminated as of the Closing Date
with respect to the Cash-Out Shares and shall thereafter represent only the
right to receive the Cash-Out Payment. The Cash-Out Payment shall be paid as
soon as practicable after the Closing Date. If the Cash-Out Right shall have
been exercised by the Company only in part, then, unless this Option has
expired, the holder shall be entitled to receive the Change in Control
Consideration under Section 8(c)(i) with respect to the remaining Option
Shares for which this Option may then be exercisable.

             (e)  In the event of any adjustment in the number of shares
covered by this Option, any fractional shares resulting from such adjustment
shall be disregarded and this Option shall cover only the number of full
shares resulting from such adjustment.

         9.  NO RIGHTS OR LIABILITIES AS A SHAREHOLDER. This Option shall not
entitle the holder hereof to any voting rights or other rights as a
shareholder of the Company. No provision of this Option, in the absence of
affirmative action by the holder hereof to purchase Option Shares, and no
mere enumeration herein of the rights or privileges of the holder hereof,
shall give rise to any liability of such holder for the Exercise Price or as
a shareholder of the Company, whether such liability is asserted by the
Company or by creditors of the Company.

         10. EXERCISE WITHOUT REGISTRATION. If, at the time of the surrender
of this Option in connection with any exercise hereof, the Option Shares
issuable hereunder shall not be registered under the Securities Act of 1933,
as amended (the "SECURITIES ACT"), and under applicable state securities or
blue sky laws, the Company may require, as a condition of allowing such
exercise,


                                      5

<PAGE>

(i) that the holder of this Option furnish to the Company a written opinion
of counsel, which opinion and counsel are acceptable to the Company, to the
effect that such exercise may be made without registration under said Act and
under applicable state securities or blue sky laws and (ii) that the holder
execute and deliver to the Company an investment letter in form and substance
acceptable to the Company. Except in respect of a sale pursuant to an
effective registration statement under the Securities Act, the holder of this
Option, by taking and holding the same, represents to the Company that such
holder is acquiring this Option for investment and not with a view to the
distribution thereof.

         11. RESTRICTION ON ISSUANCE OF SHARES. The Company shall not be
obligated to sell or issue any Option Shares pursuant to this Agreement if
such sale or issuance, in the judgment of the Company and the Company's
counsel, might constitute a violation by the Company of any provision of law,
including without limitation the provisions of the Securities Act. The
Company may, but shall not be required to, register or qualify the sale of
any Option Shares under the Securities Act or any other applicable law. The
Company shall not be obligated to take any affirmative action in order to
cause the grant or exercise of this Option or the issuance or sale of any
Option Shares pursuant thereto to comply with any law.

         12. RESTRICTIONS ON TRANSFER. Except as provided in Section 5, this
Option may not be transferred. The Option Shares may only be transferred in
accordance with all applicable federal and state securities or blue sky laws
and the regulations thereunder, including without limitation, the Securities
Act.

         13. REPRESENTATIONS, WARRANTIES, ACKNOWLEDGMENTS AND AGREEMENTS OF
OPTIONEE. Optionee hereby acknowledges and agrees that by giving Notice of
Exercise of this Option, Optionee is making the following representations and
warranties:

             (a)  INVESTMENT INTENT. The Option Shares are purchased only for
investment, for Optionee's own account, and without any present intention to
sell or distribute the Option Shares.

             (b)  ABSENCE OF REGISTRATION. Optionee acknowledges and agrees
that this Option and the Option Shares have not been registered under the
Securities Act or the securities laws of any jurisdiction and accordingly
will not be transferable except as permitted under one or more exemptions
from the registration requirements of such laws or upon satisfaction of the
registration and prospectus delivery requirements of such laws. Therefore,
the Option Shares must be held indefinitely unless they are subsequently
registered under the Securities Act and all other applicable securities laws
or an exemption from such registration is available. Optionee understands
that the certificates, if any, evidencing the Option Shares may be imprinted
with a legend which prohibits the transfer thereof unless they are registered
or unless the Company receives an opinion of counsel reasonably satisfactory
to the Company that such registration is not required. Optionee understands
that a stop transfer instruction may be in effect with respect to transfer of
Option Shares consistent with the requirements of the securities laws.

             (c)  PROFESSIONAL ADVICE. The acceptance and exercise of this
Option and the sale of the Option Shares has consequences under federal and
state tax and securities laws which may vary depending upon the individual
circumstances of Optionee. Accordingly, Optionee


                                      6

<PAGE>

acknowledges that Optionee has been advised to consult his/her personal legal
and tax advisor in connection with this Agreement and his/her dealings with
respect to this Option and the Option Shares. Optionee further acknowledges
that the Company has made no warranties or representations to Holder with
respect to the income tax consequences of the grant and exercise of this
Option or the sale of the Option Shares and Optionee is in no manner relying
on the Company or its representatives for an assessment of such consequences.

         14. REPLACEMENT OF OPTION. Upon receipt of evidence reasonably
satisfactory to the Company of the loss, theft, destruction, or mutilation of
this Option and, in the case of any such loss, theft, or destruction, upon
delivery of an indemnity agreement reasonably satisfactory in form and amount
to the Company, or, in the case of any such mutilation, upon surrender and
cancellation of this Option, the Company, at its expense, will execute and
deliver, in lieu thereof, a new Option of like tenor.

         15. NOTICES. All notices, requests, and other communications
required or permitted to be given or delivered hereunder shall be in writing,
and shall be personally delivered, or shall be sent by certified or
registered mail, postage prepaid and addressed, to the parties at their
respective addresses set forth below their signatures, or at such other
address as shall have been designated by a party by notice delivered to the
other. All notices, requests, and other communications shall be deemed to
have been given either at the time of the delivery thereof to (or the receipt
by, in the case of a telegram, telex or telecopy) the person entitled to
receive such notice at the address of such person for purposes of this
Section 15, or, if mailed, at the completion of the third (3rd) day following
the time of such mailing thereof to such address, as the case may be.

         16. MISCELLANEOUS.

             (a)  ASSIGNMENT; BINDING EFFECT. Subject to the limitations set
forth in this Agreement, this Agreement shall be binding upon and inure to
the benefit of the executors, administrators, heirs, legal representatives,
and successors of the parties hereto; PROVIDED, HOWEVER, that Optionee may
not assign any of Optionee's rights under this Agreement (other than by will
or the laws of descent and distribution).

             (b)  DAMAGES. Optionee shall be liable to the Company for all
costs and damages, including incidental and consequential damages, resulting
from a disposition of Option Shares which is not in conformity with the
provisions of this Agreement.

             (c)  GOVERNING LAW. This Agreement shall be governed by, and
construed in accordance with, the laws of the State of Washington without
regard to its conflicts of law principles.

             (d)  AMENDMENTS. This Option and any provision hereof may not be
changed, waived, discharged, or terminated orally, except by an instrument in
writing signed by the parties.


                                      7

<PAGE>

             (e)  HEADINGS. The descriptive headings of the several Sections
of this Option are inserted for purposes of reference only, and shall not
affect the meaning or construction of any of the provisions hereof.

         IN WITNESS WHEREOF, the parties have executed this Agreement as of
the date first written above.


COWLITZ BANCORPORATION                      OPTIONEE:
                                                     -------------------------
927 Commerce Avenue                                  -------------------------
Longview, WA 98632                                   -------------------------


By:
    -------------------------------      --------------------------------------
    Name:                                (Signature)
    Title:






                                      8

<PAGE>



                                   SCHEDULE 1
                                  NBOC OPTIONS


<TABLE>
<CAPTION>

DATE OF GRANT              NUMBER OF SHARES          EXERCISE PRICE
-------------              ----------------          --------------
<S>                        <C>                       <C>










</TABLE>


                                      9

<PAGE>

                           FORM OF EXERCISE AGREEMENT


                                                Dated              ,         .
                                                      ------------- ---------

To:      COWLITZ BANCORPORATION
         927 Commerce Avenue
         Longview, WA 98632

         The undersigned, pursuant to the provisions set forth in the Option
enclosed herewith, hereby irrevocably elects to exercise the purchase right
represented by the Option and agrees to purchase _____ shares of Common Stock
covered by such Option, and hereby makes payment in full for such shares at
the price per share provided by such Option in cash or by certified or
official bank check in the amount of $_____ for such shares and payment of
$_____ for any applicable taxes resulting from such exercise. Please issue a
certificate or certificates for such shares of Common Stock in the name of
and pay any cash for any fractional share to the undersigned at the address
set forth below. If said number of shares of Common Stock shall not be all
the shares purchasable under the Option, a new Option Agreement is to be
issued in the name of the above covering the balance of the shares
purchasable thereunder less any fraction of a share paid in cash. The
undersigned hereby confirms the representations, warranties and agreements
set forth in the Option Agreement.



                                       HOLDER:


                                       ---------------------------------------
                                       (Signature)

                                       Name:
                                             ---------------------------------
                                       Address:
                                                ------------------------------

                                                ------------------------------


                                      10


<PAGE>


                   Schedule of Shareholders Who are Parties
                    to the Form of Shareholders Non-Competition Agreement
                    and Indemnification Limitation
                    -----------------------------------------------------
                    William V. Spicer
                    Christopher Brown
                    John F. Walrod
                    Kurt G. Wollenberg
                    John H. Holloway, Jr.

<PAGE>


                        SHAREHOLDER'S NON-COMPETITION AND

                      INDEMNIFICATION LIMITATION AGREEMENT
                               (NAME:__________)



         This Shareholder's Non-Competition and Indemnification Limitation
Agreement (the "AGREEMENT") is between Cowlitz Bancorporation ("COWLITZ"),
Cowlitz Bank ("COWLITZ BANK") and ________________ ("Shareholder").
Contemporaneously herewith, Cowlitz, Cowlitz Bank and Northern Bank of
Commerce ("NBOC") have entered into an Agreement and Plan of Merger (the
"MERGER AGREEMENT"), pursuant to which NBOC will merge with and into Cowlitz
Bank (the "MERGER") with Cowlitz Bank being the surviving corporation.
Cowlitz, Cowlitz Bank and Shareholder desire that, as of the effective time
of the Merger (the "EFFECTIVE TIME"), Shareholder will be subject to the
terms set forth herein. The parties therefore agree as follows:

         1.  PURPOSE. Cowlitz and Cowlitz Bank have mandated as a condition
of the Merger Agreement that certain shareholders of NBOC, who are directors
and/or key executives of NBOC and have materially contributed to its goodwill
and business value, must enter into agreements not to compete with Cowlitz
Bank for a period of time after the merger of NBOC with and into Cowlitz
Bank. The parties agree the requirement of non-competition agreements is
necessary and appropriate to protect the valuable goodwill of NBOC subsequent
to the Merger, and that Cowlitz and Cowlitz Bank would not be willing to
consummate the Merger under the agreed upon terms, if at all, without
requiring such non-competition agreements. In addition, it is a condition of
Cowlitz's and Cowlitz Bank's willingness to enter into the Merger Agreement
that Shareholder acknowledge and agree that indemnification rights against
Cowlitz or Cowlitz Bank are limited as set forth in Section 8 hereof.

         2.  CONSIDERATION TO SHAREHOLDER. Shareholder owns common stock of
NBOC, and/or vested stock options to acquire common stock of NBOC.
Shareholder represents that he will receive substantial financial benefit if
NBOC is merged with and into Cowlitz Bank, and Shareholder is therefore
willing to enter into this Agreement to facilitate the Merger.

         3.  TERM. The term of this Agreement shall be three (3) years from
the date of the Effective Time (the "EFFECTIVE DATE"), provided this
Agreement shall be void without further action by the parties if the Merger
Agreement is terminated.

         4.  CONFIDENTIALITY AND NON-COMPETITION.

             4.1  During and after the term of this Agreement, Shareholder
will protect and hold in strictest confidence all Confidential Information of
Cowlitz, Cowlitz Bank and NBOC. "CONFIDENTIAL INFORMATION" includes, without
limitation, trade secrets, plans, programs, source and object codes,
specifications, drawings, diagrams, schematics, formulae, product designs and
concepts, reports, studies, technical know-how, methods, customer and
supplier lists, customer requirements, agreements, licenses, price lists and
policies, budgets, projections, bids, costs, financial reports, financing
materials, training programs and manuals, and sales and marketing

<PAGE>

programs, materials, plans, and strategies. Confidential Information excludes
information known to the general public other than due to breach of this
Agreement.

             4.2  During the term of this Agreement, Shareholder will not in
any capacity (including, without limitation, as an employee, officer, agent,
director, consultant, owner, shareholder, partner, member or joint venturer)
directly or indirectly, whether or not for compensation, engage in or assist
others to engage in any business that is, or is preparing to be, in
"Competition" with Cowlitz Bank; provided, however, that nothing herein shall
prevent the purchase or ownership by Shareholder of shares which constitute
less than one percent of the outstanding equity securities of a publicly-held
company. A business shall be deemed to be in "COMPETITION" with Cowlitz Bank
if it is engaged in the business of soliciting or accepting deposits, making
or seeking to make extensions of credit or originating or servicing loans
within the geographic area in which Cowlitz Bank is engaged in such business,
which the parties agree is throughout the States of Washington and Oregon, or
if it is engaged in any other business in which Cowlitz Bank is engaged as of
the Effective Date within the geographic area in which Cowlitz Bank in
engaged in such business.

             4.3  Shareholder further agrees that during the term of the
Agreement, Shareholder will not call on, reveal the name of, or otherwise
solicit, accept business from or attempt to entice away any actual or
identified potential customer of NBOC during the term of this Agreement, nor
will he assist others in doing so. Shareholder further agrees that he will
not, during the term of the Agreement, encourage or solicit or assist others
to encourage or solicit any employee, consultant or business relation of
Cowlitz Bank or Cowlitz to leave such employment or terminate such business
relationship for any reason.

             4.4  Shareholder acknowledges that the covenants in this Section
4 are reasonable in relation to the business in which NBOC is engaged,
Shareholder's knowledge of NBOC's business, the position Shareholder has been
afforded with NBOC and the material adverse affect upon the value of the
goodwill of NBOC if Shareholder engaged in Competition during the term of
this Agreement, and that compliance with such covenants will not prevent him
from pursuing his livelihood. However, should any court of competent
jurisdiction find that any provision of such covenants is unreasonable,
whether in period of time, geographical area, or otherwise, then in that
event the parties agree that such covenants shall be interpreted and enforced
to the maximum extent which the court deems reasonable.

         5.  REMEDIES. Shareholder acknowledges that the harm to Cowlitz and
Cowlitz Bank from any breach of Shareholder's obligations under or related to
this Agreement may be difficult to determine and may be wholly or partially
irreparable, and such obligations may be enforced by injunctive relief and
other available remedies at law or in equity. The parties further agree that
neither Cowlitz and Cowlitz Bank shall be required to post any bond in
connection with enforcement of Shareholder's obligations hereunder unless
required by applicable law or court rule, and that Cowlitz and Cowlitz Bank
in their sole discretion shall be entitled to inform third parties of the
existence of this Agreement and of Shareholder's obligations hereunder. Any
amounts received by Shareholder or by any other party through Shareholder in
breach of this Agreement shall be held in trust for the benefit of Cowlitz
and Cowlitz Bank. In the event


NON-COMPETITION AGREEMENT - 2

<PAGE>

Shareholder breaches Section 4.2 or 4.3, the term of this Agreement shall be
extended by the period of time during which Shareholder is in breach of
Section 4.2 or 4.3, as the case may be. No term hereof shall be construed to
limit or supersede any other right or remedy of Cowlitz and Cowlitz Bank
under applicable law with respect to the protection of trade secrets or
otherwise.

         6.  NO CONFLICTING AGREEMENTS. Shareholder represents that
Shareholder has no contractual obligations or other undertakings which would
restrict or impair Shareholder's performance of this Agreement. Shareholder
agrees to indemnify Cowlitz and Cowlitz Bank for all losses, claims, and
expenses (including reasonable attorneys' fees) arising from any breach of
Shareholder 's warranties or representations herein.

         7.  AT WILL EMPLOYMENT. Unless and to the extent otherwise agreed by
Cowlitz or Cowlitz Bank and Shareholder in a separate written employment
agreement, any employment of Shareholder by Cowlitz and/or Cowlitz Bank is
and will be "at will." No term of any employment agreement between Cowlitz
and/or Cowlitz Bank and Shareholder shall be construed to conflict with or
lessen Shareholder 's obligations under this Agreement.

         8.  ACKNOWLEDGMENT OF INDEMNIFICATION LIMITATION. Notwithstanding
any agreement with or rights against NBOC that Shareholder may have with
respect to indemnification, Shareholder acknowledges and agrees that neither
Cowlitz nor Cowlitz Bank shall have any obligation whatsoever to indemnify
Shareholder except to the extent of any directors' and officers' insurance
coverage set forth in Section 7.8 of the Merger Agreement and applicable to
Shareholder.

         9.  MISCELLANEOUS.

         9.1 BINDING EFFECT. This Agreement shall be binding upon and inure
to the benefit of the respective successors, assigns, heirs, representatives,
executors and administrators of the parties. No waiver of or forbearance to
enforce any right or provision hereof shall be binding unless in writing and
signed by the party to be bound, and no such waiver or forbearance in any
instance shall apply to any other instance or to any other right or provision.

         9.2 GOVERNING LAW; VENUE. This Agreement will be governed by the
laws of the State of Washington without regard to its conflicts of laws
rules. The parties hereby agree that the exclusive venue for all matters and
actions arising under this Agreement shall be and remain in the judicial
districts of the state and federal courts, respectively, encompassing
Seattle, Washington, and the parties hereby consent to the personal
jurisdiction of such courts. The prevailing party shall be entitled to
reasonable attorneys' fees and costs incurred in connection with such
litigation.

         9.3 ENTIRE AGREEMENT; SEVERABILITY. This Agreement represents the
entire agreement between Cowlitz, Cowlitz Bank and Shareholder concerning the
subject matter hereof and supersedes all prior agreements, correspondence and
understandings, whether oral or written, with respect to that subject matter.
If any provision of this Agreement is held to be invalid or unenforceable to
any extent in any context, it shall nevertheless be enforced to the fullest
extent


NON-COMPETITION AGREEMENT - 3

<PAGE>

allowed by law in that and other contexts, and the validity and force of the
remainder of this Agreement shall not be affected thereby.

         9.4. COUNTERPARTS. This Agreement may be executed in any number of
counterparts, each of which will be deemed an original, but all of which
together will constitute one and the same instrument.








NON-COMPETITION AGREEMENT - 4

<PAGE>

         BY SIGNING BELOW, SHAREHOLDER ACKNOWLEDGES THAT HE HAS READ THIS
AGREEMENT IN ITS ENTIRETY AND UNDERSTANDS IT. SHAREHOLDER FURTHER
ACKNOWLEDGES THAT THIS AGREEMENT WAS DRAFTED BY COUNSEL FOR COWLITZ
BANCORPORATION AND COWLITZ BANK, AND THAT HE HAS HAD THE OPPORTUNITY TO
CONSULT WITH HIS COUNSEL WITH RESPECT TO THIS AGREEMENT.



         DATED as of the 14th day of September, 1999.



         COWLITZ:                      COWLITZ BANCORPORATION


                                       By
                                          -------------------------------------
                                          Name:

                                          Title:



         COWLITZ BANK:                 COWLITZ BANK


                                       By
                                          -------------------------------------
                                          Name:

                                          Title:



         SHAREHOLDER:


                                          -------------------------------------
                                                       (signature)


NON-COMPETITION AGREEMENT - 5


<PAGE>

                  CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS


As independent public accountants, we hereby consent to the use of our
reports (and to all references to our Firm) included in or made a part of this
registration statement.


Portland, Oregon                                 /s/ Arthur Andersen, LLP
November 23, 1999                                ARTHUR ANDERSEN LLP




<PAGE>

               CONSENT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANT




We hereby consent to the use of our report on the financial statements of
Northern Bank of Commerce included in this Registration Statement on Form S-4
and to the reference to our Firm under the capital "Experts" in the Prospectus.



/s/ Moss Adams

Portland, Oregon
November 22, 1999

<PAGE>

EXHIBIT 23.5

                                    CONSENT

    We hereby consent to the use of our opinion letter dated September 10, 1999,
addressed to the Board of Directors of Northern Bank of Commerce, included as
Appendix D to the joint proxy statement which forms part of the Registration
Statement on Form S-4 filed by Cowlitz Bancorporation with respect to the
proposed merger of Northern Bank of Commerce into Cowlitz Bancorp's wholly-
owned subsidiary, Cowlitz Bank, and we consent to the references to such opinion
letter in such joint proxy statement. In giving this consent, we do not admit
that we come within the category of persons whose consent is required under
Section 7 of the Securities Act of 1933, as amended.

D.A. DAVIDSON & CO.

     /s/ Daren Shaw
     -----------------------------------------
By: Daren Shaw

Dated: November 23, 1999


<PAGE>

                      FEDERAL DEPOSIT INSURANCE CORPORATION

                                WASHINGTON, D.C.


-------------------------------------------------
                                                 )
                                                 )
In the Matter of                                 )
                                                 )            ORDER TO
NORTHERN BANK OF COMMERCE                        )        CEASE AND DESIST
PORTLAND, OREGON                                 )
                                                 )          FDIC-99-087b
(INSURED STATE NONMEMBER BANK)                   )
                                                 )
-------------------------------------------------)


         Northern Bank of Commerce, Portland, Oregon ("Bank"), having been
advised of its right to a Notice of Charges and of Hearing detailing the unsafe
or unsound banking practices and violation of laws and/or regulations alleged to
have been committed by the Bank and of its right to a hearing on the alleged
charges under section 8(b)(1) of the Federal Deposit Insurance Act ("Act"), 12
U.S.C. Section 1818(b)(1), and having waived those rights, entered into a
STIPULATION AND CONSENT TO THE ISSUANCE OF AN ORDER TO CEASE AND DESIST
("CONSENT AGREEMENT") with counsel for the Federal Deposit Insurance Corporation
("FDIC"), dated July 19, 1999, whereby solely for the purpose of this proceeding
and without admitting or denying the alleged charges of unsafe or unsound
banking practices and violation of laws and/or regulations, the Bank consented
to the issuance of an ORDER TO CEASE AND DESIST ("ORDER") by the FDIC.

         The FDIC considered the matter and determined that it had

<PAGE>

                                       2

reason to believe that the Bank had engaged in unsafe or unsound banking
practices and had committed violation of laws and/or regulations. The FDIC,
therefore, accepted the CONSENT AGREEMENT and issued the following:

                            ORDER TO CEASE AND DESIST

         IT IS HEREBY ORDERED, that the Bank, its institution-affiliated
parties, as that term is defined in section 3(u) of the Act, 12 U.S.C. Section
1813(u), and its successors and assigns cease and desist from the following
unsafe and unsound banking practices and violation of laws and/or regulations:

         (a) operating with inadequate management;

         (b) operating with inadequate equity capital and reserves in relation
to the volume and quality of assets held by the Bank;

         (c) operating with a large volume of poor quality loans;

         (d) operating with an inadequate allowance for loan and lease losses;

         (e) following inadequate lending and lax collection practices;

         (f) operating with inadequate provisions for liquidity and funds
management;

         (g) operating with inadequate internal routine and controls policies;

         (h) operating in such a manner as to produce low earnings; and

         (i) operating in violation of the following laws and/or regulations:

<PAGE>

                                       3


                  (i) Part 309 of the FDIC's Rules and Regulations, 12 C.F.R.
Part 309, as more fully described on page 38 of the Report of Examination as of
January 19, 1999;

                  (ii) Section 323.4 of the FDIC's Rules and Regulations, 12
C.F.R. Section 323.4, as more fully described on pages 37 and 38 of the Report
of Examination as of January 19, 1999;

                  (iii) Section 337.6 of the FDIC's Rules and Regulations, 12
C.F.R. Section 337.6, as more fully described on page 37 of the Report of
Examination as of January 19, 1999; and

                  (iv) Section 192.501 of the Oregon Revised Statutes, Or. Rev.
Stat. Section 192.501 (1995), as more fully described on page 38 of the Report
of Examination as of January 19, 1999.

         IT IS FURTHER ORDERED, that the Bank, its institution-affiliated
parties, and its successors and assigns, take affirmative action as follows:

         1.       The Bank shall have and retain qualified management.

                  (a) Each member of management shall have qualifications and
experience commensurate with his or her duties and responsibilities at the Bank.
Management shall include a chief executive officer with proven ability in
managing a Bank of comparable size, and experience in upgrading a low quality
loan portfolio, improving earnings, and other matters needing particular
attention. Management shall also include a senior lending officer with
significant appropriate lending, collection, and loan supervision experience and
experience in upgrading a low quality loan portfolio. Management shall also
include a chief

<PAGE>

                                       4

financial officer with appropriate financial management skills and experience
and proven ability in managing financial affairs of a bank of comparable size
and financial condition and experience in upgrading accounting and
information systems report, improving overall earnings, quantity and quality,
and improving asset liability composition to maximize profitability and
minimize risk. Each member of management shall be provided appropriate
written authority from the Bank's board of directors to implement the
provisions of this ORDER.

                  (b) The qualifications of management shall be assessed on
its ability to:

                      (i) comply with the requirements of this ORDER;

                      (ii) operate the Bank in a safe and sound manner;

                      (iii) comply with applicable laws and regulations;
and

                      (iv) restore all aspects of the Bank to a safe and
sound condition, including asset quality, capital adequacy, earnings,
management effectiveness, and liquidity.

                  (c) During the life of this ORDER, the Bank shall notify the
Regional Director of the FDIC's San Francisco Regional Office ("Regional
Director") and the Administrator of the Department of Finance and Corporate
Securities ("Administrator") in writing when it proposes to add any individual
to the Bank's board of directors or employ any individual as a senior executive
officer. The notification must be received at least 30 days before such addition
or employment is intended to become


<PAGE>

                                       5

effective and should include a description of the background and experience
of the individual or individuals to be added or employed.

                  (d) The Bank may not add any individual to its board of
directors or employ any individual as a senior executive officer if the Regional
Director issues a notice of disapproval pursuant to section 32 of the Act, 12
U.S.C. Section 1831i.

         2.       The Bank shall take the following actions regarding its Board
of Directors:

                  (a) The Bank shall increase membership of the Board from five
to seven members by electing two additional outside directors. Confidential
biographical and financial reports of candidates for these positions shall be
submitted to the Division of Finance and Corporate Securities and the FDIC for
approval prior to their taking office.

                  (b) The Bank shall reorganize such that the position of
Chairman of the Board will be limited to an outside director.

                  (c) The Bank shall limit membership in the Board's audit
committee to outside directors.

         3.       (a) Within 180 days from the effective date of this ORDER,
the Bank shall take the necessary steps to increase Tier 1 capital by no less
than $2,000,000 and shall have Tier 1 capital in such an amount as to equal
or exceed ten (10%) percent of the Bank's total assets. Thereafter, during
the life of this ORDER, the Bank shall maintain Tier 1 capital in such an
amount as to equal or exceed ten (10%) percent of the Bank's total assets.

<PAGE>


                                       6

The Bank may submit to the FDIC and to the Administrator, and they will
consider, a request for an extension of time to the timeframes set forth in
Subparagraph 3(a).

                  (b) Within 60 days from the effective date of this ORDER, the
Bank shall develop and adopt a plan to maintain the minimum risk-based capital
requirements as described in the FDIC Statement of Policy on Risk-Based Capital
contained in Appendix A to Part 325 of the FDIC Rules and Regulations, 12 C.F.R.
Part 325, Appendix A. The Plan shall be in a form and manner acceptable to the
Regional Director as determined at subsequent examinations.

                  (c) The level of Tier 1 capital to be maintained during the
life of this ORDER pursuant to Subparagraph 3(a) shall be in addition to a
fully funded allowance for loan and lease losses, the adequacy of which shall
be satisfactory to the Regional Director and Administrator as determined at
subsequent examinations and/or visitations.

                  (d) Any increase in Tier 1 capital necessary to meet the
requirements of Paragraph 3 of this ORDER may be accomplished by the following:

                      (i) the sale of common stock; or

                      (ii) the sale of noncumulative perpetual preferred
stock; or

                      (iii) the direct contribution of cash by the board of
directors and/or shareholders of the Bank; or


<PAGE>

                                       7

                      (iv) any other means acceptable to the Regional
Director and the Administrator; or

                      (v) any combination of the above means.

Any increase in Tier 1 capital necessary to meet the requirements of Paragraph 3
of this ORDER may not be accomplished through a deduction from the Bank's
allowance for loan and lease losses.

                  (e) If all or part of the increase in Tier 1 capital required
by Paragraph 3 of this ORDER is accomplished by the sale of new securities, the
board of directors shall forthwith take all necessary steps to adopt and
implement a plan for the sale of such additional securities, including the
voting of any shares owned or proxies held or controlled by them in favor of the
plan. Should the implementation of the plan involve a public distribution of the
Bank's securities (including a distribution limited only to the Bank's existing
shareholders), the Bank shall prepare offering materials fully describing the
securities being offered, including an accurate description of the financial
condition of the Bank and the circumstances giving rise to the offering, and any
other material disclosures necessary to comply with the Federal securities laws.
Prior to the implementation of the plan and, in any event, not less than fifteen
(15) days prior to the dissemination of such materials, the plan and any
materials used in the sale of the securities shall be submitted to the FDIC,
Registration and Disclosure Section, 550 - 17th Street, N.W., Washington, D.C.
20429, for review. Any changes requested to be made in the plan or materials by
the FDIC shall

<PAGE>

                                       8

be made prior to their dissemination. If the increase in Tier 1 capital is
provided by the sale of noncumulative perpetual preferred stock, then all
terms and conditions of the issue, including but not limited to those terms
and conditions relative to interest rate and convertibility factor, shall be
presented to the Regional Director and the Administrator for prior approval.

                  (f) In complying with the provisions of Paragraph 3 of this
ORDER, the Bank shall provide to any subscriber and/or purchaser of the
Bank's securities, a written notice of any planned or existing development or
other changes which are materially different from the information reflected
in any offering materials used in connection with the sale of Bank
securities. The written notice required by this paragraph shall be furnished
within ten (10) days from the date such material development or change was
planned or occurred, whichever is earlier, and shall be furnished to every
subscriber and/or purchaser of the Bank's securities who received or was
tendered the information contained in the Bank's original offering materials.

                  (g) For the purposes of this ORDER, the terms "Tier 1 capital"
and "total assets" shall have the meanings ascribed to them in Part 325 of the
FDIC Rules and Regulations, 12 C.F.R. Sections 325.2(t) and 325.2(v).

         4.       (a) Within 10 days from the effective date of this ORDER, the
Bank shall eliminate from its books, by charge-off or collection, all assets
classified "Loss" as of January 19, 1999,

<PAGE>

                                       9

that have not been previously collected or charged off. Elimination of these
assets through proceeds of other loans made by the Bank is not considered
collection for the purpose of this paragraph.

                  (b) Within 180 days from the effective date of this ORDER, the
Bank shall have reduced the items classified "Substandard" and "Doubtful" as of
January 19, 1999 that have not previously been charged off to not more than
$3,500,000.

                  (c) Within 365 days from the effective date of this ORDER, the
Bank shall have reduced the items classified "Substandard" and "Doubtful" as of
January 19, 1999 that have not previously been charged off to not more than
$2,500,000.

                  (d) The requirements of Subparagraphs 4(a) and 4(b) of
this ORDER are not to be construed as standards for future operations and, in
addition to the foregoing, the Bank shall eventually reduce the total of all
adversely classified assets. Reduction of these assets through proceeds of other
loans made by the Bank is not considered collection for the purpose of this
paragraph. As used in subparagraphs 4(b), 4(c), and 4(d) the word "reduce"
means:

                      (i) to collect;

                      (ii) to charge-off; or

                      (iii) to sufficiently improve the quality of assets
adversely classified to warrant removing any adverse classification, as
determined by the FDIC.

         5.       (a) Beginning with the effective date of this ORDER,

<PAGE>

                                       10


the Bank shall not extend, directly or indirectly, any additional credit to,
or for the benefit of, any borrower who has a loan or other extension of
credit from the Bank that has been charged off or classified, in whole or in
part, "Loss" and is uncollected. Subparagraph 5(a) of this ORDER shall not
prohibit the Bank from renewing or extending the maturity of any credit in
accordance with the Financial Accounting Standards Board Statement Number 15
("FASB 15").

                  (b) Beginning with the effective date of this ORDER, the Bank
shall not extend, directly or indirectly, any additional credit to, or for the
benefit of, any borrower who has a loan or other extension of credit from the
Bank that has been classified, in whole or part, "Substandard" or "Doubtful"
without the prior written approval of a majority of the board of directors or
the loan committee of the Bank. Subparagraph 5(b) of this ORDER shall not
prohibit the Bank from renewing or extending the maturity of any credit in
accordance with FASB 15, providing that such renewal or extension shall be made
only with the prior written approval of a majority of the board of directors or
the loan committee of the Bank.

                  (c) In connection with Subparagraphs 5(a) and 5(b) of this
ORDER, the Bank shall not:

                      (i) continue the accrual of interest on any loan which
is delinquent in principal or interest payments ninety (90) days or more
unless the asset is both well secured and in the process of collection; or

<PAGE>

                                       11

                      (ii) engage in any practice or device which essentially
avoids recognition of overdue loans and/or artificially inflates the income
of the Bank. For any loans restructured in accordance with FASB 15,
consideration should be given to the reasonableness of the modified terms of
the loan, since loans should not be restructured in an attempt to conceal
credit losses or delay their recognition.

                  (d) For the purpose of Subparagraph 5(c) of this ORDER, debt
is "well secured" if it is secured by:

                      (i) collateral in the form of liens on or pledges of
real or realizable value sufficient to discharge the debt (including accrued
interest) in full; or

                      (ii) the guaranty of a financially responsible party.

A debt is "in the process of collection" if collection of the debt is proceeding
in due course either through legal action, including judgment enforcement
procedures, or, in appropriate circumstances, through collection efforts not
involving legal action which are reasonably expected to result in repayment of
the debt or in its restoration to a current status.

         6.       Within 60 days from the effective date of this ORDER, the Bank
shall revise, adopt, and implement written lending and collection policies to
provide effective guidance and control over the Bank's lending functions, which
policies shall include specific guidelines for placing loans on a non-accrual
basis. In addition, the Bank shall obtain adequate and current

<PAGE>

                                      12

documentation for all loans in the Bank's loan portfolio. Such policies and
their implementation shall be in a form and manner acceptable to the Regional
Director and the Administrator as determined at subsequent examination and/or
visitations.

The initial revision to the Bank's loan policy and practices, required by this
paragraph, at a minimum, shall include the following:

                  (a) provisions, consistent with FDIC instructions for the
preparation of Reports of Condition and Income, under which the accrual of
interest income is discontinued and previously accrued interest is reversed
on delinquent loans;

                  (b) provisions which prohibit the capitalization of
interest or loans related expense unless the Board of Directors supports in
writing and records in the minutes of the corresponding Board of Directors'
meeting why an exception thereto is in the best interests of the Bank;

                  (c) provisions which require complete loan documentation,
realistic repayment terms and current credit information adequate to support
the outstanding indebtedness of the borrower. Such documentation shall
include current financial information, profit and loss statements or copies
of tax returns and cash flow projections;

                  (d) provisions which incorporate limitations on the amount
that can be loaned in relation to establish collateral values;

<PAGE>

                                      13

                  (e) provisions which specify the circumstances and
conditions under which real estate appraisals must be conducted by an
independent third party;

                  (f) the Board of Directors shall adopt procedures whereby
officer compliance with the revised loan policy is monitored and
responsibility for exceptions thereto assigned. The procedures adopted shall
be reflected in the minutes of the Board of Directors' meeting at which all
members are present and the vote of each is noted.

         7.       The Bank shall implement a loan review process and internal
grading system that identifies credit risk in individual loans and in the
whole loan portfolio. The process must include risk reporting to the Board at
least quarterly. The loan review process will document monitoring of loan
officer compliance with the Bank's loan policy and assign responsibility for
exceptions thereto.

         8.       Within 30 days from the effective date of this ORDER, the
Bank shall establish and thereafter maintain an adequate allowance for loan
and lease losses.

                  Additionally, within 30 days from the effective date of
this ORDER, the Bank shall develop or revise, adopt and implement a
comprehensive policy for determining the adequacy of the allowance for loan
and lease losses, in accordance with the Interagency Policy Statement on the
Allowance for Loan and Lease Losses ("ALLL"). For the purpose of this
determination, the adequacy of the allowance shall be determined after the
charge-

<PAGE>

                                      14

off of all loans or other items classified "Loss." The policy shall provide
for a review of the allowance at least once each calendar quarter. Said
review should be completed at least ten (10) days prior to the end of each
quarter, in order that the findings of the board of directors with respect to
the loan and lease loss allowance may be properly reported in the quarterly
Reports of Condition and Income. The review should focus on the results of
the Bank's internal loan review, loan and lease loss experience, trends of
delinquent and non-accrual loans, an estimate of potential loss exposure of
significant credits, concentrations of credit, and present and prospective
economic conditions. A deficiency in the allowance shall be remedied in the
calendar quarter it is discovered, prior to submitting the Report of
Condition, by a charge to current operating earnings. The minutes of the
board of directors meeting at which such review is undertaken shall indicate
the results of the review. Upon completion of the review, the Bank shall
increase and maintain its allowance for loan and lease losses consistent with
the allowance on loan and lease loss policy established. Such policy and its
implementation shall be satisfactory to the Regional Director and
Administrator as determined at subsequent examinations and/or visitations.

         9.       Within 60 days from the effective date of this ORDER, the Bank
shall formulate and implement a written profit plan. This plan shall be
forwarded to the Regional Director and to the Administrator for review and
comment and shall address, at a

<PAGE>

                                      15

minimum, the following:

                  (a) goals and strategies for improving and sustaining the
earnings of the Bank, including:

                      (i) an identification of the major areas in, and means
by which, the board of directors will seek to improve the Bank's operating
performance:

                      (ii) realistic and comprehensive budgets;

                      (iii) a budget review process to monitor the income and
expenses of the Bank to compare actual figures with budgetary projections; and

                      (iv) a description of the operating assumptions that
form the basis for, and adequately support, major projected income and
expense components.

                  (b) coordination of the Bank's loan, investment, and operating
policies, and budget and profit planning, with the funds management policy.

         10.      The Bank shall develop a formal liquidity plan that will
establish minimum standards for measuring, monitoring, and reporting the Bank's
short and long-term liquidity needs. Included in the formal liquidity plan will
be requirements for monitoring the Bank's actual and anticipated cash flow,
deposit structure, and changing deposit maturity status. The formal liquidity
plan will also address the establishment and maintenance of alternative funding
sources. The policy shall also address the Bank's assessment of Year 2000
generated cash needs, identify confirmed sources of funds, and management's

<PAGE>

                                      16

methodology for determining funding requirements.

         11.      Within 60 days from the effective date of this ORDER, the Bank
shall adopt and implement a policy for the operation of the Bank in such a
manner as to provide adequate internal routine and control policies consistent
with safe and sound banking practices. Such policy and its implementation shall
be satisfactory to the Regional Director and the Administrator as determined at
subsequent examinations and/or visitations.

         12.      The Bank shall develop and implement an internal audit program
such that all general ledger accounts are reconciled, balanced, and certified on
a set schedule. Certifications will be completed by a person independent of
account posting responsibility and verified by a bank officer. All reconciling
items, including suspense accounts, will be resolved within thirty (30) days by
posting to the appropriate account.

         13.      Within 10 days after eliminating from its books any asset in
compliance with Paragraph 5 of this ORDER, the Bank shall file with the FDIC
amended Consolidated Reports of Condition and Income which shall accurately
reflect the financial condition of the Bank as of December 31, 1998. Thereafter,
during the life of this ORDER, the Bank shall file with the FDIC Consolidated
Reports of Condition and Income which accurately reflect the financial condition
of the Bank as of the end of the period for which the Reports are filed,
including any adjustment in the Bank's books made necessary or appropriate as a
consequence of any Division of Finance & Corporate Securities or

<PAGE>

                                      17

FDIC examination of the Bank during that reporting period.

         14.      The Bank shall formalize its information systems and internal
reporting requirement such that all reports from management are prepared
accurately and timely and provide clear understanding of the underlying issues
that affect the Bank's financial condition, trend, and soundness.

         15.      Upon the effective date of this ORDER, the Bank shall not
increase the amount of brokered deposits above the amount outstanding on that
date. Within ten (10) days of the effective date of this ORDER, the Bank shall
submit to the Regional Director and the Administrator a written plan for
eliminating its reliance on brokered deposits. The plan should contain details
as to the current composition of brokered deposits by maturity and explain the
means by which such deposits will be paid or rolled over. The Regional Director
and the Administrator shall have the right to reject the Bank's plan. On the
tenth (10) day of the month, the Bank shall provide a written progress report to
the Regional Director and the Administrator detailing the level, source, and use
of brokered deposits with specific reference to progress under the Bank's plan.
For purposes of this ORDER, brokered deposits are defined as described in
section 337.6 of the FDIC's Rules and Regulations to include any deposits funded
by third party agents or nominees for depositors, including deposits managed by
a trustee or custodian when each individual beneficial interest is entitled to
or asserts a right to Federal deposit insurance.

<PAGE>

                                      18

         16.      Within 60 days from the effective date of this ORDER, the Bank
shall eliminate and/or correct all violations of law which are more fully set
out on pages 37 and 38 of the Report of Examination of the Bank as of January
19, 1999. In addition, the Bank shall take all necessary steps to ensure future
compliance with all applicable laws and regulations.

         17.      Following the effective date of this ORDER, the Bank shall
send to its shareholders or otherwise furnish a description of this ORDER in
conjunction with the Bank's next shareholder communication and also in
conjunction with its notice or proxy statement preceding the Bank's next
shareholder meeting. The description shall fully describe the ORDER in all
material respects. The description and any accompanying communication,
statement, or notice shall be sent to the FDIC, Registration and Disclosure
Section, 550 - 17th Street, N.W., Washington, D.C. 20429, at least fifteen (15)
days prior to dissemination to shareholders. Any changes requested to be made by
the FDIC shall be made prior to dissemination of the description, communication,
notice, or statement.

         18.      On the last day of each calendar quarter following the
effective date of this ORDER, the Bank shall furnish written progress reports to
the Regional Director and the Administrator detailing the form and manner of any
actions taken to secure compliance with this ORDER and the results thereof. Such
reports may be discontinued when the corrections required by this ORDER

<PAGE>

                                      19

have been accomplished and the Regional Director and the Administrator has
released the Bank in writing from making further reports.

         This ORDER shall become effective ten (10) days from the date of its
issuance.

         The provisions of this ORDER shall remain effective and enforceable
except to the extent that, and until such time as, any provisions of this ORDER
shall have been modified, terminated, suspended, or set aside by the FDIC.

         Pursuant to delegated authority.

         Dated at San Francisco, California, this 21st day of July, 1999.



                                                    /s/ George J. Masa
                                          -------------------------------------
                                          George J. Masa
                                          Regional Director
                                          Division of Supervision
                                          San Francisco Region
                                          Federal Deposit Insurance Corporation


<PAGE>

Pursuant to ORS 706.580 of the Oregon Bank Act, IT IS HEREBY ORDERED that the
Northern Bank of Commerce (Bank) cease and desist from the following unsafe
and unsound banking practices and violations of The Oregon Bank Act:

         (1) Operating with inadequate management, as described on pages 10
and 11 of the Report of Examination as of January 19, 1999;

         (2) Operating with inadequate equity capital and reserves in
relation to the volume and quality of assets held by the Bank, as described
on pages 18 and 19 of the Report of Examination as of January 19, 1999;

         (3) Operating with a large volume of poor quality loans, as
described on pages 12 through 14 of the Report of Examination as of January
19, 1999;

         (4) Operating with an inadequate allowance for loan and lease
losses, as described on page 22 of the Report of Examination as of January
19, 1999;

         (5) Following inadequate lending and lax collection practices, as
described on page 13 of the Report of Examination as of January 19, 1999;

         (6) Operating with inadequate provisions for liquidity and funds
management, as described on pages 25 and 26 of the Report of Examination as
of January 19, 1999;

         (7) Operating with inadequate internal routine and controls
policies, as described on pages 32 and 33 of the Report of Examination as of
January 19, 1999;

         (8) Operating in such a manner as to produce low earnings, as
described on pages 21 and 22 of the Report of Examination as of January 19,
1999;

         (9) Operating in violation of the following laws and/or regulations:

                  (a) Part 309 of the FDIC's Rules and Regulations, 12 C.F.R.
Part 309, as more fully described on page 38 of the Report of Examination as
of January 19, 1999;

                  (b) Section 323.4 of the FDIC's Rules and Regulations, 12
C.F.R. Section 323.4, as more fully described on pages 37 and 38 of the
Report of Examination as of January 19, 1999;

                  (c) Section 337.6 of the FDIC's Rules and Regulations, 12
C.F.R. Section 337.6, as more fully described on page 37 of the report of
Examination as of January 19, 1999; and

                  (d) Chapter 706 of the Oregon Revised Statutes, OR. Rev.
Stat. Section 706.720 (1997), as more fully described on page 38 of the
Report of Examination as of January 19, 1999.

         IT IS FURTHER ORDERED, that the Bank, its institution-affiliated
parties, and its successors and assigns, take affirmative action as follows:

                                 1 of 10

<PAGE>

                                  1. MANAGEMENT

         (1) The Board of Directors shall increase membership of the Board
from five to seven members by electing two additional outside directors.
Confidential Biographical and Financial Reports of candidates for these
positions shall be submitted to the Administrator of the Division of Finance
and Corporate Securities (Administrator) and the Regional Director of FDIC
(Regional Director) for approval prior to their taking office

         (2) The Board of Directors shall reorganize such that the position
of Chairman of the Board will be limited to an outside director. In addition,
membership in the Board's audit committee shall be limited to outside
directors.

         (3) Within 30 days from the effective date of this ORDER, the Board
of Directors shall increase its participation in the affairs of the bank,
assuming full responsibility for the approval of sound policies, objectives,
and practices and for the supervision of all of the bank's actions consistent
with the role and expertise commonly expected for directors. The Board of
Directors shall, at a minimum, review and approve reports of income and
expenses; new, overdue, renewal, insider, charged-off, and recovered loans;
investment activity; operating policies; and individual committee actions.
The Board of Directors shall require and maintain comprehensive written
minutes of all bank board, committee, and management meetings conducted such
that a clear written record of deliberations and decisions reached, including
the names of dissenting directors and officers, is created and retained.

         (4) The entire Board of Directors shall function as the Board Loan
Committee. A quorum of four directors, including not less than three outside
directors, must be present in person in an assembled meeting in order to make
any loan decisions as necessary.

         (5) The Board of Directors shall review and revise each of the
bank's existing policies in order that single rather than multiple policy
statements exist for each aspect of the bank's business activities. All
policies shall be in writing and shall be distributed to all senior
management personnel who shall acknowledge in writing having received each
revised policy statement.

         (6) The Audit Committee shall certify that management has completed
the general ledger account certification process, resolved all reconciling
items, and that lending officers have complied with the requirements of the
Board of Directors' lending, collection, and internal review and grading
policies. This certification shall be in written form and reported to the
Board of Directors monthly, and a copy of the report will be included in the
minutes of the appropriate board meeting.

         (7) The Board of Directors shall have and retain qualified
management.

                  (a) The Board of Directors shall retain an individual with
the appropriate lending skills

                              2 of 10

<PAGE>

and experience to supervise the bank's lending programs and correct the
serious underwriting deficiencies noted during the examination. The Board of
Directors shall retain an individual with the appropriate financial
management skills and experience to supervise the bank's accounting and
financial activities. Resumes of candidates for these positions shall be
submitted to the Administrator and the Regional Director for review, comment,
and nonobjection prior to any offer of employment.

                  (b) Each member of management shall have the qualifications
and experience commensurate with his or her duties and responsibilities at
the bank. The chief lending officer must have a proven ability in managing a
loan portfolio of comparable size and content and experience in upgrading a
low-quality loan portfolio. The chief financial officer must have a proven
ability in managing the financial affairs of a bank of comparable size and
financial condition and experience in upgrading accounting and information
systems reports, improving overall earnings quantity and quality, and
improving asset/liability composition to maximize profitability and minimize
risk.

                  (c) The qualifications of management shall be assessed on
its ability to:

                           (i) Comply with the requirements of this ORDER;

                           (ii) Operate the bank in a safe and sound manner;

                           (iii) Comply with applicable laws and regulations;
and

                           (iv) Restore all aspects of the bank's operations
to a safe and sound condition including asset quality, capital adequacy,
earnings, management effectiveness, and liquidity.

                  (d) During the life of this ORDER, the Board of Directors
shall notify the Administrator and the Regional Director in writing when it
proposes to add any individual to the bank's Board of Directors or employ any
individual as a senior executive officer. The notification must be received
at least 30 days before such addition or employment is intended to become
effective and must include a description of the background and experience of
the individual or individuals to be appointed or employed. The Board of
Directors may not add an individual to its board or employ any individual as
a senior executive officer if the Administrator or the Regional Director
issues a notice of disapproval.

         (8) The Board of Directors shall formalize its information systems
and internal reporting requirements such that all reports from management are
prepared accurately and timely and provide clear understanding of the
underlying issues that affect the bank's financial condition, trend, and
soundness.

         (9) The Board of Directors shall develop and implement an internal
audit program such that all general ledger accounts are reconciled, balanced,
and certified on a set schedule. Certifications will be completed by a person
independent of account posting responsibility and verified by a bank officer.
All reconciling items, including suspense accounts, will be resolved within
30 days by posting to the appropriate account.

                                  3 of 10

<PAGE>

                        2. ASSET QUALITY AND LOAN POLICY



         (1) Beginning with the effective date of this order, the bank shall
revise, adopt, and implement written lending and collection policies to
provide effective guidance and control over the bank's lending functions, and
such policies shall include specific guidelines for placing loans on a
nonaccrual basis. In addition, the bank shall obtain adequate and current
documentation for all current and future loans in the bank's loan portfolio.
Such policies and their implementation shall be in a form and manner
acceptable to the Administrator and the Regional Director as determined at
subsequent examinations and/or visitations.

         The initial revision to the bank's loan policy and practices,
required by section 2 paragraph (1), at a minimum, shall include the
following:

                  (a) Provisions, consistent with FDIC instructions for the
preparation of Reports of Condition and Income, under which the accrual of
interest income is discontinued and previously accrued interest is reversed
on delinquent loans;

                  (b) Provisions which prohibit the capitalization of
interest or loan related expense unless the Board of Directors supports in
writing and records in the minutes of the corresponding Board of Directors'
meeting why an exception is in the best interests of the bank;

                  (c) Provisions which require complete loan documentation,
realistic repayment terms, and current credit information adequate to support
the outstanding indebtedness of the borrower. At a minimum, such
documentation shall include current financial information, profit and loss
statements or copies of tax returns and cash flow projections, and any other
information material to the loan being made;

                  (d) Provisions which incorporate limitations on the amount
that can be loaned in relation to established collateral values;

                  (e) Provisions which specify the circumstances and
conditions under which real estate appraisals must be conducted by an
independent third party;

                  (f) The Board of Directors shall adopt procedures whereby
officer compliance with the revised loan policy is monitored and
responsibility for exceptions thereto assigned. The procedures adopted shall
be reflected in the minutes of Board of Directors meetings at which all
members are present, and the vote of each is noted.

         (2) The Board of Directors shall set individual loan officer loan
approval limits commensurate with the officer's training and experience. The
Board of Directors shall set the Bank Loan Committee approval limit at no
more than $300,000. Additionally, loan policies

                                 4 of 10

<PAGE>

shall be adopted requiring the Board Loan Committee to approve all loans in
excess of the Bank Loan Committee limit and all second and subsequent loan
extensions, modifications, and renewals.

         (3) The Board of Directors shall implement a loan review process and
internal grading system that identifies credit risk in individual loans and
in the whole loan portfolio. The process must include risk reporting to the
board at least quarterly. The loan review process will document monitoring of
loan officer compliance with the bank's loan policy and assign responsibility
for exceptions.

         (4) The Board of Directors shall review the adequacy of the
Allowance for Loan and Lease Losses (ALLL) and establish a comprehensive
policy for determining and maintaining an adequate ALLL. This review shall be
completed at least once each quarter. The minimum adequacy standards
prescribed by the Interagency Policy Statement on the Allowance for Loan and
Lease Losses of 12-21-93, shall be met.

         (5) Following the effective date of this ORDER, the bank shall not
extend, directly or indirectly, any additional credit to, or for the benefit
of, any borrower whose loan or other credit has been classified "Doubtful" or
"Substandard" and is uncollected unless the Board of Directors has signed a
detailed written statement giving reasons why failure to extend such credit
would be detrimental to the best interests of the bank. The statement shall
be placed in the appropriate loan file and included in the minutes of the
applicable Board of Directors' meeting.

         (6) The Board of Directors shall revise the bank's loan quality
control process whereby each loan is reviewed by a person other than the
originating loan officer prior to disbursement of any funds. The internal
reviewer shall certify that all required loan documentation is obtained,
including documentation evidencing sufficient cash flow and borrower ability
to repay the loan, collateral valuation and inspection reports, and appraisal
reviews by a person qualified by appraisal training and experience to ensure
compliance with USPAP standards

         (7) The Board of Directors shall require written certification from
each of the bank's lending officers that they have read, fully understand,
and will comply with the requirements of the bank's lending policies and
procedures. The lending officers' certifications will be completed annually
and retained in the appropriate minutes of the Board of Directors meetings.

         (8) The Board of Directors shall establish procedures to ensure
prudent lending practices are followed and that no loans are granted,
extended, renewed, or modified unless the borrower can demonstrate cash flow
sufficient to repay the loan under the proposed credit terms.

         (9)(a) Within 10 days from the effective date of this ORDER, the
Bank shall eliminate from its books, by charge-off or collection, all assets
classified "Loss" as of January 19, 1999, that have not been previously
collected or charged off. Elimination of these assets through proceeds of
other loans made by the Bank is not considered collection for the purpose of
this paragraph.

                  (b) Within 180 days from the effective date of this ORDER,
the Bank shall have reduced the items classified "Substandard" and "Doubtful"
as of January 19, 1999, that have not previously been charged off to not more
that $3,500,000 in the aggregate.

                                 5 of 10

<PAGE>

                  (c) Within 365 days from the effective date of this ORDER,
the Bank shall have reduced the items classified "Substandard" and "Doubtful"
as of January 19, 1999, that have not previously been charged off to not more
than $2,500,000 in the aggregate.

                  (d) The requirements of section 2 subparagraphs (9)(a) and
9(b) of this ORDER are not to be construed as standards for future operations
and, in addition to the foregoing, the Bank shall eventually reduce the total
of all adversely classified assets. Reduction of these assets through
proceeds of other loans made by the Bank is not considered collection for the
purpose of this paragraph. As used in section 2 subparagraphs (9)(b), (9)(c),
and (9)(d), the word "reduce" means:

                           (i) To collect;

                           (ii) To charge-off; or

                           (iii) To sufficiently improve the quality of
assets adversely classified to warrant removing any adverse classification,
as determined by the Administrator.

                          3. SAFE AND SOUND OPERATIONS

         (1) The Board of Directors shall eliminate and/or correct all
violations of law that are set out in the Report of Examination. In addition,
the Board shall take all necessary steps to ensure future compliance with all
applicable laws and regulations.

         (2) The Board of Directors shall develop a formal liquidity plan
that will establish minimum standards for measuring, monitoring, and
reporting the bank's short and long-term liquidity needs. Included in the
formal liquidity plan will be requirements for monitoring the bank's actual
and anticipated cash flow, deposit structure, and changing deposit maturity
status. The formal liquidity plan will also address the establishment and
maintenance of alternative funding sources. The policy shall also address the
bank's assessment of Year 2000 generated cash needs, identify confirmed
sources of funds, and management's methodology for determining funding
requirements.

         (3) The Board of Directors shall develop a business plan and
maintain annual operating budgets that will ensure sufficient net income to
accumulate capital in direct proportion to asset growth such that the bank's
capital ratio does not erode. The Board of Directors will review quarterly
variance reports and instruct management in the actions required to achieve
budget standards.

         (4)(a) Within 180 days from the effective date of this ORDER, the
Bank shall have taken the necessary steps to increase Tier 1 capital by no
less than $2,000,000 and shall have Tier 1 capital in such an amount as to
equal or exceed 10 percent of the Bank's total assets. The Bank may submit to
the Administrator and the Regional Director, and they will consider, a
request for an extension of time to the time frames set forth in subparagraph
4(a). Thereafter, during the life of this ORDER, the Bank shall maintain Tier
1 Capital in such an amount as to

                                     6 of 10

<PAGE>

equal or exceed 10 percent of the Bank's total assets.

                  (b) Within 60 days from the effective date of this ORDER,
the Bank shall develop and adopt a plan to maintain the minimum risk-based
capital requirements as described in the FDIC Statement of Policy on
Risk-Based Capital contained in Appendix A to Part 325 of the FDIC Rules and
Regulations, 12 C.F.R. Part 325, Appendix A. The Plan shall be in a form and
manner acceptable to the Regional Director as determined at subsequent
examinations.

                  (c) The level of Tier 1 capital to be maintained during the
life of this ORDER pursuant to section 3 subparagraph (4)(a) shall be in
addition to a fully funded allowance for loan and lease losses, the adequacy
of which shall be satisfactory to the Administrator and the Regional Director
as determined at subsequent examinations and/or visitations.

                  (d) Any increase in Tier 1 capital necessary to meet the
requirements of section 3 paragraph (4) of this ORDER may be accomplished by
the following:

         (i)  The sale of common stock; or

         (ii)  The sale of noncumulative perpetual preferred stock; or

         (iii) The direct contribution of cash by the board of directors and/or
shareholders of the Bank; or

         (iv) Any other means acceptable to the Administrator and the
Regional Director; or any combination of the above means.

         Any increase in Tier I capital necessary to meet the requirements of
section 3 paragraph (4) of this ORDER may not be accomplished through a
deduction from the Bank's allowance for loan and lease losses.

                  (e) If all or part of the increase in Tier 1 capital
required by section 3 paragraph (4) of this ORDER is accomplished by the sale
of new securities, the Board of Directors shall forthwith take all necessary
steps to adopt and implement a plan for the sale of such additional
securities, including the voting of any shares owned or proxies held or
controlled by them in favor of the plan. Should the implementation of the
plan involve a public distribution of the Bank's securities (including a
distribution limited only to the Bank's existing shareholders) the Bank shall
prepare offering materials fully describing the securities being offered
including an accurate description of the financial condition of the Bank, the
circumstances giving rise to the offering, and any other material disclosures
necessary to comply with State and Federal securities laws. Prior to the
implementation of the plan and, in any event, not less than 15 days prior to
the dissemination of such materials, the plan and any material used in the
sale of the securities shall be submitted to the Administrator, DFCS, 350
Winter St., N.E., Salem, OR 97310 and to the FDIC, Registration and
Disclosure section, 550 - 17th Street, N.W., Washington, D.C. 20429 for
review. Any changes requested to be made in the plan or material by DFCS
and/or FDIC shall be made prior to their dissemination. If the increase in
Tier 1 capital is provided by the sale of noncumulative perpetual preferred
stock, then all terms and conditions of the issue, including but not limited
to those terms and conditions relative to

                                   7 of 10

<PAGE>

interest rate and convertibility factor, shall be presented to the
Administrator and the Regional Director for prior approval.

                  (f) In complying with the provisions of section 3 paragraph
(4) of this ORDER, the Bank shall submit to the Administrator and shall
provide to any subscriber and/or purchaser of the Bank's securities, a
written notice of any planned or existing development or other changes which
are materially different from the information reflected in any offering
materials used in connection with the sale of Bank securities. The written
notice required by this paragraph shall be furnished within 10 days from the
date such material development or change was planned or occurred, whichever
is earlier, and shall be furnished to every subscriber and/or purchaser of
the Bank's securities who received or was tendered the information contained
in the Bank's original offering materials.

         The provisions of this ORDER, issued in accordance with ORS 706.580,
shall be binding upon the bank and any institution-affiliated party as such
term is defined in section 3(u) of the Act, 12 USC 1813 (u), to include its
directors, officers, employees, agents, successors, assigns, and other
persons participating in the conduct of the affairs of the bank.

         This ORDER shall become effective 10 days from the date of its
issuance.

         The provisions of this ORDER shall remain effective and enforceable
except to the extent that, and until such time as, any provisions have been
modified, terminated, suspended, or set aside by the State of Oregon and the
Federal Deposit Insurance Corporation.

                                  8 of 10

<PAGE>



Dated this 19th day of July 1999 at Salem, Oregon.


MICHAEL GREENFIELD, DIRECTOR
DEPARTMENT OF CONSUMER AND BUSINESS SERVICES


by /s/ R. M. Nockleby
  ------------------------------------------


R. M. NOCKLEBY, ADMINISTRATOR
DIVISION OF FINANCE AND CORPORATE SECURITIES



                            CONSENT TO ENTRY OF ORDER


         We, the undersigned, state that we are the directors of Northern
Bank of Commerce and are authorized to act on its behalf; that we have read
the foregoing ORDER and that we know and fully understand the contents
hereof; that Northern Bank of Commerce has been advised of its right to a
hearing; that Northern Bank of Commerce admits to all the Findings of Fact
contained herein; that Northern Bank of Commerce voluntarily consents to the
entry of this ORDER without further hearing, expressly waiving any right to a
hearing in this matter; that Northern Bank of Commerce understands that the
Director reserves the right to take further actions to enforce this ORDER or
to take appropriate action upon discovery of other violations of Oregon's
Bank Act; and that Northern Bank of Commerce will fully comply with the
Oregon Bank Act.

         We understand that this Consent Order is a public document.

         Dated this 19th day of July 1999.

                                    9 of 10

<PAGE>

Northern Bank of Commerce

Portland, Oregon

by:




/s/ John H. Holloway, Jr.
-----------------------------
John H. Holloway, Jr.
Chairman/CEO


/s/ Christopher Brown
-----------------------------
Christopher Brown



/s/ William V. Spicer
-----------------------------
William V. Spicer


/s/ John F. Walrod
-----------------------------
John F. Walrod



/s/ Kurt G. Wollenberg
-----------------------------
Kurt G. Wollenberg



Comprising the Board of Directors of Northern Bank of Commerce, Portland, Oregon



                                     10 of 10


<PAGE>

<TABLE>
<S><C>
-----------------------------------------------------------------------------------------------------------------------------------

                                                      COWLITZ BANCORPORATION
                                   PROXY FOR THE JANUARY 27, 2000 SPECIAL MEETING OF SHAREHOLDERS

                                        THIS PROXY IS SOLICITED BY THE BOARD OF DIRECTORS
                                                      OF COWLITZ BANCORPORATION

     The undersigned shareholder(s) of Cowlitz Bancorporation ("Cowlitz"), hereby appoints Charles W. Jarrett and Benjamin
Namatinia, and each of them, as proxies, each with the power of substitution to represent and to vote, as designated below, all
the shares of Common Stock of Cowlitz held of record by the undersigned on November 30, 1999, at the Special Meeting of
Shareholders to be held on January 27, 2000, and at any and all postponements, adjournments or reschedulings thereof.

     Shares represented by all properly completed, dated and executed proxies will be voted in accordance with instructions
appearing on the proxy and in the discretion of the proxy holders as to any other matter that may properly come before the
Special Meeting of Shareholders. THE BOARD OF DIRECTORS RECOMMENDS A VOTE "FOR" ITEM 1. IN THE ABSENCE OF SPECIFIC INSTRUCTIONS,
PROXIES WILL BE VOTED FOR ITEM 1 AND IN THE DISCRETION OF THE PROXY HOLDERS AS TO ANY OTHER MATTER THAT MAY PROPERLY COME BEFORE
THE SPECIAL MEETING OF SHAREHOLDERS.

-----------------------------------------------------------------------------------------------------------------------------------
                                                            -  FOLD AND DETACH HERE  -

</TABLE>

<PAGE>

<TABLE>
<S><C>
-----------------------------------------------------------------------------------------------------------------------------------

                                                                                                             Please mark
                                                                                                             your votes as
                                                                                                             indicated in     /X/
                                                                                                             this example

                                                             FOR   AGAINST   ABSTAIN
1. Approval of the issuance of shares of common stock        / /     / /     / /
pursuant to the Agreement and Plan for Merger, dated as of
September 14, 1999 between Cowlitz, Cowlitz Bank and
Northern Bank of Commerce, pursuant to which Northern Bank
of Commerce will merge with and into Cowlitz Bank.

                                                            WILL        WILL NOT
                                                           ATTEND        ATTEND
                                                            / /           / /
2. Special meeting R.S.V.P: I/We________
(enter number of people attending).



THE UNDERSIGNED HEREBY ACKNOWLEDGES RECEIPT OF THE NOTICE OF SPECIAL MEETING OF SHAREHOLDERS
AND THE RELATED JOINT PROXY STATEMENT DATED, IN EACH CASE,                     , 1999.

PLEASE SIGN YOUR NAME BELOW EXACTLY AS IT APPEARS HEREON. WHEN SIGNING
AS ATTORNEY, EXECUTOR, ADMINISTRATOR, TRUSTEE OR GUARDIAN, PLEASE GIVE FULL
TITLE AS SUCH. IF A CORPORATION, PLEASE SIGN IN FULL CORPORATE NAME BY
PRESIDENT OR OTHER AUTHORIZED OFFICER. IF A PARTNERSHIP, PLEASE SIGN IN
PARTNERSHIP NAME BY AUTHORIZED PERSON.

Date _________________________________, 1999/2000       Signature (if held jointly): _________________________________

Signature: ______________________________________       Title: _______________________________________________________

Title:___________________________________________       Please sign, date and return this proxy card promptly.


-----------------------------------------------------------------------------------------------------------------------------------
                                                            -  FOLD AND DETACH HERE  -

</TABLE>

<PAGE>

PROXY                      NORTHERN BANK OF COMMERCE                      PROXY


      PROXY SOLICITED BY THE BOARD OF DIRECTORS FOR THE SPECIAL MEETING OF
                  SHAREHOLDERS TO BE HELD JANUARY 27, 2000.


The undersigned hereby appoints James A. Wills and John B. Ellsworth, or
either of them (with full power to act alone), as proxies with full power of
substitution, to represent and to vote all of the Common Stock of NORTHERN
BANK OF COMMERCE, held of record by the undersigned at the close of business
on November 30, 1999 at the special meeting of shareholders of NORTHERN BANK
OF COMMERCE on Thursday, January 27, 2000, and at any adjournments thereof,
as set forth below. Either or both of the above named proxies may vote the
shares of the undersigned in accordance with their discretion on any other
matters which may properly come before the meeting or any adjournments
thereof.

       (Continued, and to be marked, dated and signed, on the other side)

--------------------------------------------------------------------------------
                            - FOLD AND DETACH HERE -

<PAGE>

The Board of Directors recommends a vote FOR the           Please mark your  /X/
proposals:                                                vote as indicated
                                                           in the example

ITEM 1.  Proposal to approve the merger between Cowlitz Bancorp and Cowlitz
         Bank with Northern Bank of Commerce.

                             FOR    AGAINST    ABSTAIN
                             / /      / /        / /

ITEM 2.  In their discretion, the Proxies are authorized to vote upon such
         other business as may properly come before the meeting.

                                    PLEASE SIGN EXACTLY AS SHARES ARE
                                    REGISTERED. WHEN SHARES ARE HELD BY JOINT
                                    TENANTS, BOTH SHOULD SIGN. WHEN SIGNING AS
                                    ATTORNEY, EXECUTOR, ADMINISTRATOR, TRUSTEE
                                    OR GUARDIAN, PLEASE GIVE FULL TITLE AS SUCH.
                                    AS A CORPORATION, PLEASE SIGN IN FULL
                                    CORPORATE NAME, PRESIDENT, OR OTHER
                                    AUTHORIZED OFFICER. IF A PARTNERSHIP, PLEASE
                                    SIGN IN PARTNERSHIP NAME, BY AUTHORIZED
                                    PERSON.


Signature____________ Signature if jointly held proxy____________ Dated________

-------------------------------------------------------------------------------
                            - FOLD AND DETACH HERE -

PLEASE MARK, SIGN, DATE AND RETURN THIS PROXY PROMPTLY USING THE ENCLOSED
ENVELOPE.



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