SUMMIT BANCORP/NJ/
S-4, 1999-12-23
NATIONAL COMMERCIAL BANKS
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                        As filed with the Securities and
Exchange Commission on December 23, 1999.
                                                           Registration No. 333-
================================================================================


                       SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549
- --------------------------------------------------------------------------------

                                    FORM S-4
                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933
- --------------------------------------------------------------------------------

                                 SUMMIT BANCORP.
             (Exact name of registrant as specified in its charter)

<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------------
 <S>                                               <C>                                                   <C>
            NEW JERSEY                                         6711                                             22-1903313
 (State or other jurisdiction of                   (Primary Standard Industrial                              (I.R.S. Employer
  incorporation or organization)                    Classification Code Number)                           Identification Number)
- ------------------------------------------------------------------------------------------------------------------------------------
</TABLE>

                       301 CARNEGIE CENTER, P.O. BOX 2066
                        PRINCETON, NEW JERSEY 08543-2066
                                 (609) 987-3200
    (Address, Including Zip Code, and Telephone Number, Including Area Code,
                  of Registrant's Principal Executive Offices)
- --------------------------------------------------------------------------------

                           RICHARD F. OBER, JR., ESQ.
             EXECUTIVE VICE PRESIDENT, GENERAL COUNSEL AND SECRETARY
                       301 CARNEGIE CENTER, P.O. BOX 2066
                        PRINCETON, NEW JERSEY 08543-2066
                                 (609) 987-3430
                 (Name, Address, Including Zip Code, and Telephone Number,
                   Including Area Code, of Agent For Service)
- --------------------------------------------------------------------------------

                                    COPY TO:
                         STANFORD N. GOLDMAN, JR., ESQ.
                 MINTZ, LEVIN, COHN, FERRIS, GLOVSKY & POPEO, PC
                              ONE FINANCIAL CENTER
                                 BOSTON, MA 02111
                                 (617) 348-1708
- --------------------------------------------------------------------------------

      APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC: As soon
as practicable after the effective date of this Registration Statement and upon
consummation of the merger of NMBT Corp. into Registrant as described herein.
           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 [ ]
<TABLE>
<CAPTION>
                         CALCULATION OF REGISTRATION FEE
====================================================================================================================================
                                                                    PROPOSED MAXIMUM      PROPOSED MAXIMUM
                                                   AMOUNT TO BE         OFFERING              AGGREGATE              AMOUNT OF
      TITLE OF SECURITIES BEING REGISTERED          REGISTERED       PRICE PER UNIT        OFFERING PRICE        REGISTRATION FEE
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                                <C>                  <C>                 <C>                     <C>
Common Stock, par value $.80
  (and associated stock purchase rights)(1)        2,948,741(2)         $23.75(3)           $73,695,253(4)          $19,456
- ------------------------------------------------------------------------------------------------------------------------------------

====================================================================================================================================
</TABLE>

(1)  Prior to the occurrence of certain events, the stock purchase rights will
not be evidenced separately from the common stock.

(2) Based upon the number of shares of NMBT Corp. common stock outstanding on
October 3, 1999, plus the number of such shares subject to outstanding stock
options, for an aggregate of 3,102,958 shares, multiplied by 0.9503, the highest
exchange ratio provided for in the Agreement and Plan of Merger dated October 3,
1999.

(3) Based upon the average of the high and low prices of NMBT Corp. common stock
on December 20, 1999, pursuant to Rule 457.

(4) Based upon the price of NMBT Corp. common stock referred to in footnote (3)
hereof multiplied by the number of shares of NMBT Corp. common stock referred to
in footnote (2) hereof.


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 THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(A),
MAY DETERMINE.
================================================================================
<PAGE>
      The Boards of Directors of Summit Bancorp. and NMBT Corp. ("NMBT") have
agreed upon a merger combining NMBT and Summit. We cannot complete the merger
unless the shareholders of NMBT approve it. A special meeting of shareholders of
NMBT will be held on _______________, 2000 at the Park Lane Office of NMBT, 100
Park Lane, New Milford, Connecticut at 7:00 p.m., local time, to vote on this
merger. Summit shareholders do not have to approve the merger.

      Under the terms of the merger agreement, which was signed October 3, 1999,
NMBT will merge into Summit and Summit will be the surviving corporation.

      If the merger is completed, the exchange ratio, or the number of shares of
Summit common stock (together with an equal number of preferred stock purchase
rights under Summit's shareholder rights plan) you will receive for each share
of NMBT common stock you own, will be determined based upon the average closing
price of a share of Summit common stock for a ten-day period ending on a date to
be determined, which is expected to be between five to ten business days prior
to the closing of the merger, as follows:

      o If the average price of Summit  common stock during that ten-day  period
        is greater  than  $37.01563  you will  receive  0.7024  shares of Summit
        common stock for each share of NMBT common stock that you own.

      o If the average price of Summit  common stock during that ten-day  period
        is  equal  to or less  than  $37.01563  and  equal  to or  greater  than
        $27.35938,  the number of shares of Summit common stock that you receive
        for each share of NMBT common stock that you own will be  determined  by
        dividing $26.00 by the average Summit price; and

      o If the average price of Summit  common stock during that ten-day  period
        is less than  $27.35938,  you will receive .9503 shares of Summit common
        stock for each share of NMBT common stock that you own;

      Cash will be paid instead of fractional shares.

      On December ___, 1999, Summit common stock, which is traded on the New
York Stock Exchange under the symbol "SUB", closed at $______ per share and NMBT
common stock, which is traded on the Nasdaq Small Cap Market under the trading
symbol "NMBT", closed at $______ per share. If the merger is completed, NMBT
common stock will no longer be traded on Nasdaq.

      This Proxy Statement-Prospectus gives you detailed information about the
merger we are proposing and it includes our merger agreement as an appendix. It
is a proxy statement that NMBT is using to solicit proxies for use at the NMBT
special shareholder meeting. It is also a prospectus relating to Summit's
issuance of up to 2,948,741 shares of Summit common stock (and the associated
preferred stock purchase rights) in connection with the merger.

      This Proxy Statement-Prospectus also includes a formal Notice of Special
Meeting of Stockholders. A proxy card and return envelope are enclosed to
facilitate your voting if you can not attend the meeting. Also enclosed is
NMBT's Annual Report on Form 10-K for the year ended December 31, 1998 and
Quarterly Report on Form 10-Q for the quarter ended September 30, 1999. You are
encouraged to read these documents carefully before deciding how to vote your
shares. YOUR VOTE IS VERY IMPORTANT. Please mail your proxy promptly.

      The NMBT Board of Directors unanimously recommends that you vote "FOR"
approval of the merger.

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

NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES
COMMISSION HAS APPROVED OR DISAPPROVED THESE SECURITIES OR DETERMINED IF THIS
PROXY STATEMENT-PROSPECTUS IS ACCURATE OR ADEQUATE. ANY REPRESENTATION TO THE
CONTRARY IS A CRIMINAL OFFENSE. THE SECURITIES OF SUMMIT BEING OFFERED THROUGH
THIS DOCUMENT ARE NOT SAVINGS ACCOUNTS, DEPOSITS OR OTHER OBLIGATIONS OF ANY
BANK OR SAVINGS ASSOCIATION AND ARE NOT INSURED BY THE FEDERAL DEPOSIT INSURANCE
CORPORATION OR ANY OTHER GOVERNMENTAL AGENCY.

      This Proxy Statement-Prospectus is dated ________________, 1999 and was
first mailed to NMBT shareholders on or about ______________________, 1999.


<PAGE>


                                    NMBT CORP
                                 55 MAIN STREET
                           NEW MILFORD, CT 06776-2400

                    NOTICE OF SPECIAL MEETING OF STOCKHOLDERS
                   TO BE HELD             , 2000 AT 7:00 P.M.

TO OUR STOCKHOLDERS:

      A Special Meeting of Stockholders of NMBT Corp. ("Special Meeting"), will
be held at 7:00 p.m., on __________, 2000, at our Park Lane Office, located at
100 Park Lane, New Milford, Connecticut, for the following purposes:

           1.   To consider and vote upon a proposal to approve and adopt the
                Agreement and Plan of Merger dated October 3, 1999 (the "Merger
                Agreement") between NMBT Corp. ("NMBT") and Summit Bancorp.
                ("Summit") and the transactions contemplated thereby, including
                the merger of NMBT Corp. into Summit (the "Merger"), pursuant to
                which shares of NMBT common stock will be converted into the
                right to receive whole shares of Summit common stock and cash in
                lieu of fractional shares based upon an exchange ratio to be
                determined after the Special Meeting, as more fully described in
                the accompanying Proxy Statement-Prospectus;

           2.   A proposal to approve in advance of voting on the Merger
                Agreement an adjournment of the Special Meeting in the event
                there are not sufficient votes to constitute a quorum or to
                approve the Merger Agreement at the scheduled time of the
                Special Meeting, in order to permit further solicitation of
                proxies; and

           3. To transact such other business as may properly come before the
Special Meeting.

      Stockholders of record as of the close of business on ________, 1999 are
entitled to notice of and to vote at the Special Meeting. All stockholders are
cordially invited to attend the meeting.

      THE NMBT BOARD OF DIRECTORS HAS UNANIMOUSLY APPROVED THE MERGER AGREEMENT
AND UNANIMOUSLY RECOMMENDS THAT YOU VOTE "FOR" APPROVAL OF THE MERGER AGREEMENT
AND THE TRANSACTION CONTEMPLATED THEREBY AND "FOR" APPROVAL OF THE PROPOSAL
REGARDING ADJOURNMENT.

           Holders of NMBT common stock will have the right to be paid the "fair
value" of all shares owned by the stockholder by exercising dissenters rights in
connection with the Merger. See "THE MERGER--Dissenters Rights" in, and Appendix
D to the accompanying Proxy Statement-Prospectus for a description of the
procedures which a stockholder must follow in order to exercise dissenters
rights.


                                         By Order of the Board of Directors
                                         NMBT CORP


                                         /s/ Jay C. Lent
                                         ------------------------------
                                         Jay C. Lent
                                         Secretary
New Milford, Connecticut

_____________, 1999

      WHETHER OR NOT YOU EXPECT TO ATTEND THE SPECIAL MEETING, PLEASE COMPLETE,
DATE AND SIGN THE ENCLOSED PROXY CARD AND PROMPTLY MAIL THE PROXY CARD IN THE
ENCLOSED ENVELOPE IN ORDER TO ASSURE REPRESENTATION OF YOUR SHARES AT THE
SPECIAL MEETING. NO POSTAGE IS REQUIRED IF MAILED IN THE UNITED STATES. IF YOU
ATTEND THE SPECIAL MEETING, YOU MAY VOTE EITHER IN PERSON OR BY PROXY. ANY PROXY
GIVEN MAY BE REVOKED BY YOU IN WRITING AT ANY TIME BEFORE THE PROXY IS VOTED AT
THE MEETING.

<PAGE>

                          FINDING IMPORTANT INFORMATION

      This Proxy Statement-Prospectus contains important information about our
companies and the merger that you should read and consider carefully before you
vote your shares. The principal sections of this document are located at the
pages referenced in the Table of Contents below. Some of the documents related
to the merger are included as appendices to this document. In addition, we have
incorporated important business and financial information about our companies
from documents filed with the Securities and Exchange Commission that have not
been included in or delivered with this document.

      Information that is incorporated by reference in this document is
available to you without charge upon your written or oral request. You can
obtain documents incorporated by reference in this document, excluding exhibits,
by requesting them in writing or by telephone from the appropriate company at
the following addresses:

      SUMMIT BANCORP.                           NMBT CORP.
      Attention: Corporate Secretary            Attention: Corporate Secretary
      301 Carnegie Center                       55 Main Street
      Princeton, NJ 08543                       New Milford, CT 06776-2400
      Telephone: (609) 987-3442                 Telephone: (860) 355-1171

      We will mail to you any incorporated documents you request by first class
mail, or another equally prompt means, within one business day after we receive
your request. In order to ensure timely delivery of these documents to you, we
must receive your request by ___________________, 2000. See "WHERE YOU CAN FIND
MORE INFORMATION" on page ___ for more information about the documents
incorporated by reference in this Proxy Statement-Prospectus.

                                TABLE OF CONTENTS

                                                         PAGE
                                                         -----
SUMMARY                                                      1
    General                                                  1
    The Companies                                            1
    NMBT Special Meeting                                     2
    The Merger                                               2
    Market Prices and Dividends                              6
CAUTIONARY STATEMENT REGARDING
  FORWARD LOOKING INFORMATION                                8
INTRODUCTION                                                 9
SPECIAL MEETING                                              9
    Record Date                                              9
    Quorum and Vote Required                                 9
    Voting of Proxies                                        9
    How to Revoke a Proxy                                   10
    Solicitation of Proxies                                 10
    Stock Held by NMBT Directors and Others                 11
SELECTED FINANCIAL DATA                                     12
COMPARATIVE AND PRO FORMA
    PER SHARE FINANCIAL
      INFORMATION                                           14
MARKET PRICE AND DIVIDEND
  MATTERS                                                   15
    Market Price and Dividend History                       15
    Coordination and Determination of
      Dividends Under Merger Agreement                      15
    Dividend Limitations                                    16
PROPOSAL I -- APPROVAL OF THE
  MERGER AGREEMENT                                          16
    THE MERGER                                              16
    General                                                 16
    Closing and Effective Time                              16
    Exchange Ratio                                          17
    Exchange of NMBT Certificates                           18
    Conversion of NMBT Stock Options                        18
    Recommendation of NMBT Board                            19
    Background                                              19
    Reasons for the Merger                                  21
    Opinion of NMBT's Financial Advisor                     22
    Stock Option Agreement                                  26
    Regulatory Approvals                                    27
    Interests of Certain Persons
      in the Merger                                         29
    The Merger Agreement                                    31
    Dissenters Rights                                       34
    New York Stock Exchange Listing                         35
    Accounting Treatment                                    35
    Certain Federal Income Tax
      Consequences of the Merger                            35
    Resale of Summit Common                                 37
    Differences in Shareholders' Rights                     37
SUMMIT BANCORP                                              49
    Description of Business
    Recent Developments                                     49
DESCRIPTION OF SUMMIT
  CAPITAL STOCK                                             50
    Common Stock                                            50
    Shareholder Rights Plan                                 50

                                       i
<PAGE>

                                                         PAGE
                                                         -----
NMBT Corp.                                                  51
    Description of Business                                 51
DESCRIPTION OF NMBT
  CAPITAL STOCK                                             52
    General                                                 52
PROPOSAL II-- ADJOURNMENT OF SPECIAL MEETING                53
SHAREHOLDER PROPOSALS                                       53
OTHER MATTERS                                               53
LEGAL MATTERS                                               53
EXPERTS                                                     54
WHERE YOU CAN FIND MORE
  INFORMATION                                               54
MERGER AGREEMENT
  (without exhibits)                                Appendix A
OPINION OF ADVEST, INC.                             Appendix B
NMBT CORP STOCK OPTION
  AGREEMENT                                         Appendix C
DELAWARE STATUTORY
  PROVISIONS RELATING TO
  DISSENTERS RIGHTS                                 Appendix D



      WE HAVE NOT AUTHORIZED ANYONE TO GIVE ANY INFORMATION OR MAKE ANY
REPRESENTATION ABOUT THE MERGER OR OUR COMPANIES THAT DIFFERS FROM, OR ADDS TO,
THE INFORMATION IN THIS PROXY STATEMENT - PROSPECTUS OR THE DOCUMENTS THAT ARE
PUBLICLY FILED WITH THE SECURITIES AND EXCHANGE COMMISSION. THEREFORE, IF ANYONE
DOES GIVE YOU DIFFERENT OR ADDITIONAL INFORMATION, YOU SHOULD NOT RELY ON IT.
THE INFORMATION CONTAINED IN THIS PROXY STATEMENT - PROSPECTUS SPEAKS ONLY AS OF
ITS DATE UNLESS THE INFORMATION SPECIFICALLY INDICATES THAT ANOTHER DATE
APPLIES.

      INFORMATION IN THIS PROXY STATEMENT - PROSPECTUS ABOUT SUMMIT HAS BEEN
SUPPLIED BY SUMMIT AND INFORMATION ABOUT NMBT HAS BEEN SUPPLIED BY NMBT.


                                       ii

<PAGE>
                                     SUMMARY

      THIS SUMMARY HIGHLIGHTS SELECTED INFORMATION FROM THIS DOCUMENT. IT DOES
NOT CONTAIN ALL OF THE INFORMATION THAT IS IMPORTANT TO YOU. WE URGE YOU TO READ
CAREFULLY THIS ENTIRE DOCUMENT AND THE DOCUMENTS WE HAVE REFERRED YOU TO IN
ORDER TO FULLY UNDERSTAND THE MERGER. GENERALLY, EACH OF THE HEADINGS IN THIS
SUMMARY IS FOLLOWED BY A REFERENCE TO OTHER PAGES OF THIS DOCUMENT WHERE YOU CAN
READ MORE ABOUT THAT PARTICULAR TOPIC. SEE "WHERE YOU CAN FIND MORE INFORMATION"
TO FIND OUT HOW YOU CAN OBTAIN MORE INFORMATION ABOUT SUMMIT AND NMBT (P. ___).

GENERAL

      We are proposing a merger of NMBT into Summit. In the merger, you will
receive shares of Summit common stock and associated preferred stock purchase
rights in exchange for each share of NMBT common stock you own, plus cash
instead of any fractional share. If the merger is completed, the exchange ratio,
or the number of shares of Summit common stock you will receive for each share
of NMBT common stock you own will be determined by the average closing price of
a share of Summit common stock as reported on the New York Stock Exchange
composite tape for a ten-day trading period on which one share of Summit common
stock is traded, ending on a date to be determined, which is expected to be
between five to ten business days prior to the closing of the merger, as
follows:

      o If the average price of Summit common stock during that ten-day period
        is greater than $37.01563, you will receive 0.7024 shares of Summit
        common stock for each share of NMBT common stock that you own, and

      o If the average price of Summit common stock during that ten-day period
        is equal to or less than $37.01563 and equal to or greater than
        $27.35938, the number of shares of Summit common stock that you receive
        for each share of NMBT common stock that you own will be determined by
        dividing $26.00 by the average Summit stock price; and

      o If the average price of Summit common stock during that ten-day period
        is less than $27.35938, you will receive 0.9503 shares of Summit common
        stock for each share of NMBT common stock that you own.

      Cash will be paid instead of fractional shares. Summit common stock is
listed on the New York Stock Exchange and NMBT common stock is listed on the
Nasdaq Small Cap Market. For information on the historical market price of and
dividends paid on Summit common stock and NMBT common stock see page ___. We
encourage you to obtain current quotations for Summit and NMBT common stock. If
the merger is completed, NMBT common stock will no longer be listed on Nasdaq.

THE COMPANIES (SEE PAGES ___ AND ___)

      SUMMIT BANCORP. Summit Bancorp. is a New Jersey corporation and a
registered bank holding company with principal executive offices located at 301
Carnegie Center, Princeton, New Jersey. Summit's subsidiary banks, Summit Bank
(New Jersey), Summit Bank (Pennsylvania), and Summit Bank (Connecticut),
operated 484 banking offices located in New Jersey, eastern Pennsylvania and
southwestern Connecticut as of September 30, 1999. Summit's telephone number is
(609) 987-3200. Summit's subsidiary banks are engaged in a general banking
business, offering the following services and products:

      o demand and interest bearing deposit accounts;

      o asset management accounts;

      o business, real estate, personal and installment loans; and

      o lease financing, fiduciary, investment management, investment advisory,
        custodial, correspondent, capital markets, financial advisory, money
        desk and treasury services.

      In addition, Summit owns subsidiaries that are engaged in:

      o securities products and services;

      o life, health, property and casualty insurance products and services;

      o venture capital investment;

      o commercial finance lending, lease financing and asset based lending;

      o letter of credit issuance;

                                       1
<PAGE>

      o data processing; and

      o reinsuring credit life and disability insurance policies related to
        consumer loans made by the bank subsidiaries.

      NMBT. NMBT Corp. ("NMBT") was formed in 1997 and is the registered bank
holding company for NMBT, a wholly owned subsidiary ("NMBT Bank"). NMBT Bank is
a state-chartered bank and trust company founded in 1975. NMBT Bank is NMBT's
only subsidiary. NMBT's corporate headquarters is located at 55 Main Street, New
Milford, Connecticut and its phone number is 860-355-1171.

      NMBT Bank operates primarily as a full-service community financial
institution. NMBT Bank offers a wide range of consumer and commercial services
to individuals and businesses in western Connecticut. These services include
checking accounts, N.O.W. accounts, regular savings accounts, money market
accounts, retirement accounts, savings certificates, commercial demand deposit
accounts and cash management. NMBT Bank's lending activities include residential
and commercial real estate loans, home equity loans and lines of credit,
consumer loans, secured and unsecured commercial loans, letters of credit and
both consumer and commercial credit card services.

NMBT SPECIAL MEETING (SEE PAGE __)

      TIME, DATE, PLACE AND PURPOSE. (SEE PAGE ___) NMBT will hold a special
meeting of its shareholders on _____________, 2000 at 7:00 p.m., local time, at
the Park Lane Office, 100 Park Lane, New Milford, Connecticut 06776. At the
meeting you will vote on (1) the merger and (2) adjournment of the special
meeting, if necessary to obtain a quorum or to obtain additional votes in favor
of the merger.

      RECORD DATE, QUORUM AND VOTE REQUIRED. (SEE PAGE __) You can vote at the
NMBT special meeting if you owned shares of NMBT common stock at the close of
business on ______________, 1999. A majority of the outstanding shares of NMBT
common stock on _______________, 1999 must be present, in person or by proxy, to
constitute a quorum at the special meeting. The merger will be approved if a
majority of the shares of NMBT common stock outstanding on _____________, 1999
is voted for approval of the merger. If a quorum is not present or there are not
sufficient votes to approve the merger, the special meeting may be adjourned in
order to permit further solicitation of proxies by NMBT's board of directors if
a majority of the shares of NMBT common stock voted at the meeting is voted for
adjournment.

      The directors and executive officers of NMBT have agreed in writing to
vote their shares of NMBT common stock in favor of the merger. If these
executive officers and directors exercised all presently exercisable options to
purchase NMBT common stock, they would own approximately____% of the outstanding
shares of NMBT common stock.

THE MERGER (SEE PAGE ___)

      ANTICIPATED EFFECTIVE DATE OF THE MERGER. (SEE PAGE ___) If the merger is
approved by NMBT's stockholders and all the conditions to closing are
satisfied or waived:

      o we will file certificates of merger with the State of New Jersey and
        State of Delaware which will specify the date and time at which the
        merger will become effective; and

      o we currently expect that the merger will become effective during the
        first calendar quarter of 2000. A copy of the merger agreement is
        attached as Appendix A to this Proxy Statement-Prospectus.


                                       2
<PAGE>

EXCHANGE RATIO (SEE PAGE ___) The number of shares of Summit common stock that
you will receive in exchange for your NMBT common stock has not been fixed and
under the merger agreement cannot be fixed until after the NMBT shareholders
have approved the merger agreement.

      The exchange ratio will be determined by the "Summit Price". The "Summit
Price" is defined in the merger agreement as the average of the closing prices
of a share of Summit common stock on the New York Stock Exchange Composite
Transactions List for the ten consecutive full trading days on which one share
of Summit common stock is traded ending on the "Determination Date". The merger
agreement provides for an automatic Determination Date seven business days prior
to a closing date that will be set for 45 business days after all required
shareholder and government approvals are received and any legal challenges to
the merger are resolved, but also permits Summit to select an earlier closing
date and to designate a "Determination Date" in the notice of the closing date
sent to NMBT by Summit, which notice is expected to be sent at least 5 business
days prior to the date designated for closing. The number of shares of Summit
common stock that you receive in exchange for your NMBT common stock will be
based upon the following formula:

<TABLE>
<CAPTION>
                                   "SUMMIT PRICE" AS OF
                                  THE "DETERMINATION DATE"                         EXCHANGE RATIO
                                  -----------------------                          --------------
<S>                                                                              <C>
Greater than $37.01563                                                             0.7024
Equal to or less than $37.01563 and equal to or greater than $27.35938           $26.00 divided by the Summit Price
Less than $27.35938                                                                0.9503
</TABLE>

      You will be required to vote on the merger agreement prior to knowing the
exchange ratio. In addition, it is possible that by virtue of Summit's right to
select the Determination Date, Summit could choose a pricing period after the
date of NMBT special meeting which includes the NMBT special meeting date or
which includes up to 5 days prior to the NMBT special meeting.

      CONVERSION OF NMBT STOCK OPTIONS (SEE PAGE ___) In the merger, each
outstanding option to buy NMBT common stock under NMBT's stock option plans will
automatically be converted into an option to purchase Summit common stock. The
exercise price per share and the number of shares of Summit common stock subject
to each converted option will be determined as provided in the merger agreement
based on the exchange ratio. In addition, for 30 days after the merger becomes
effective, holders of NMBT stock options will have the right to receive, instead
of exercising their options, a cash payment equal to the difference between the
exercise price of the option and the Summit Price.

      RECOMMENDATION AND REASONS OF NMBT BOARD OF DIRECTORS (SEE PAGES __ AND
__) NMBT's board of directors unanimously recommends that NMBT shareholders vote
to approve the merger and the proposal to adjourn the meeting if necessary.

      NMBT's board of directors has concluded that the proposed merger is in the
best interest of NMBT, its shareholders, employees and customers, and the
communities which NMBT Bank serves. The NMBT board considered a number of
important factors, some of which are listed below:

      o the economic condition of NMBT and its current and prospective operating
        environment;

      o the economic condition of Summit and its current and prospective
        operating environment; and

      o the premium offered by Summit for NMBT's common stock in terms of market
        price and other recognized financial ratios.

      OPINION OF NMBT'S FINANCIAL ADVISOR (SEE PAGE ___) In deciding to approve
the merger agreement, NMBT's board of directors engaged Advest, Inc. to act as
financial advisor to NMBT and to give its opinion to the NMBT board as to
whether the exchange ratio is fair, from a financial point of view, to the
shareholders of NMBT.

      Advest has delivered to the NMBT board opinions dated as of October 2,
1999, and as of the date of this Proxy Statement-Prospectus stating that, as of
this date, and subject to the limitations described in the opinion, the exchange
ratio is fair, from a financial point of view, to NMBT's share-

                                       3
<PAGE>

holders. If the merger is completed, Advest will be paid a fee equal to .80% of
the total consideration payable by Summit in the merger for its advice and the
fairness opinion. We have attached Advest's opinion as of the date hereof as
Appendix B to this Proxy Statement-Prospectus. You should read it in its
entirety.

      DISSENTERS RIGHTS (SEE PAGE __) Under Delaware law, which governs the
rights of NMBT shareholders, you will have the right to dissent from the merger,
in which event you will be entitled to receive the "fair value" of your shares
of NMBT common stock by complying with the specific dissenters rights procedures
under Delaware law which are described in this Proxy Statement-Prospectus. The
dissenters rights provisions of the Delaware General Corporation Law are
attached as Appendix D to this Proxy Statement-Prospectus.

      FEDERAL INCOME TAX CONSEQUENCES (SEE PAGE ____) In general, you will not
recognize any gain or loss for federal income tax purposes as a result of the
exchange of shares of NMBT for shares of Summit in the merger, except for gain
or loss arising from cash received instead of fractional shares or if you
exercise dissenters rights. We have conditioned the merger on our receipt of a
legal opinion that the federal income tax treatment for NMBT shareholders who
exchange their shares of NMBT common stock for Summit common stock will be as we
have discussed in this document.

      ACCOUNTING TREATMENT (SEE PAGE ___) Summit expects to account for the
merger under the purchase method of accounting. Under the purchase method of
accounting, the amount by which the purchase price paid by Summit exceeds the
fair value of the net assets acquired will be treated as goodwill. Intangible
assets, including goodwill, recorded in the transaction will be amortized over a
period not to exceed 20 years.

      REGULATORY APPROVALS (SEE PAGE ___) The Board of Governors of the Federal
Reserve System and the Commissioner of Banking of the State of Connecticut must
approve the acquisition of NMBT by Summit. Applications for approval were filed
on November 22, 1999.

      CONDITIONS TO THE MERGER (SEE PAGE ___) The completion of the merger
depends on a number of conditions being satisfied or waived. Some of these
conditions include:

      o approval of the merger by NMBT's shareholders; and

      o approval of the merger by the regulatory authorities mentioned in the
        preceding paragraph without burdensome demands, and the expiration of
        any waiting period following such approval.

      There are other normal and customary conditions to completion of the
merger, including receipt of legal opinions, the New York Stock Exchange's
indication that the shares of Summit common stock to be issued in the merger
will be listed on the Exchange, and the receipt of the opinion of Thompson
Coburn, special tax counsel to Summit, as to certain federal income tax
consequences of the merger.

      The merger agreement provides that conditions to the merger, other than
NMBT shareholder approval and receipt of required regulatory approvals, may be
waived by the company for whose benefit the condition was included.

      TERMINATION OF THE MERGER AGREEMENT (SEE PAGE ___)The companies may agree
to terminate the merger agreement at any time without completing the merger.
Generally, either Summit or NMBT, without the consent of the other, may
terminate the merger agreement if any of the following occurs:

      o the shareholders of NMBT do not approve the merger;

      o the other party materially breaches a warranty, representation or
        covenant and does not cure the breach or the breach cannot be cured
        within 30 days of notice; or

      o the merger is not completed by the later of July 1, 2000 or 45 business
        days after the last required approval or resolution of any legal
        challenges to the merger, if the approval or resolution occurred prior
        to August 1, 2000.

      Generally, the company seeking to terminate cannot itself be in breach of
the merger agreement so as to allow the other party to terminate.

      The merger agreement provides that NMBT may terminate the merger agreement
if the Summit Price ending on the Determination Date is below $26.39 and the
Summit Price has declined more than 15% than the relative change in the stock
prices of 14 selected bank

                                       4
<PAGE>

holding companies since the time the companies agreed to merge.

      Summit may terminate the merger agreement if NMBT's board of directors
fails to recommend approval of the merger or withdraws, modifies or changes, or
votes to withdraw, modify or change its recommendation for approval of the
merger agreement, or if the cost of environmental matters exceeds the threshold
set forth in the merger agreement.

      OTHER INTERESTS OF NMBT OFFICERS AND DIRECTORS IN THE MERGER (SEE PAGE
___) Some directors and executive officers of NMBT have interests in the merger
that are different from, or in addition to, your interest as a shareholder of
NMBT. These interests arise from provisions in the merger agreement, the rights
of NMBT officers and directors under NMBT's Bylaws, and the rights of some NMBT
officers under benefit plans maintained by NMBT and separate agreements with
NMBT and Summit, and include the following:

      o the merger agreement contains indemnification arrangements for officers
        and directors of NMBT, and Summit has agreed to purchase directors' and
        officers' liability insurance for a six-year period following the
        merger;

      o options to purchase 391,000 shares of NMBT common stock held by NMBT
        executive officers and directors will automatically become options to
        acquire shares of Summit common stock, adjusted for the exchange ratio
        in the merger agreement;

      o Michael D. Carrigan, Jay C. Lent and Peter R. Maher, executive officers
        of NMBT, have employment agreements with NMBT which provide for
        severance payments (based upon their compensation through December 31,
        1999) of approximately $610,207 to Mr.Carrigan, $324,894 to Mr. Lent,
        and $273,264 to Mr. Maher if their employment is terminated under
        specified circumstances after the merger; and

      o Summit has agreed to appoint five members of the NMBT board of directors
        to the board of directors of Summit Bank (CT) upon the merger of NMBT
        Bank into Summit Bank (CT).

      NMBT's board of directors considered these interests when it approved the
merger agreement.

      DIFFERENCE IN SHAREHOLDERS' RIGHTS (SEE PAGE ___) The rights of NMBT
stockholders, which are determined by Delaware corporation law and NMBT's
Restated Certificate of Incorporation and Bylaws differ from the rights of
Summit shareholders, which are determined by New Jersey corporation law and
Summit's Restated Certificate of Incorporation and By-Laws. Some of the
differences in shareholders' rights are due to differences between the
corporation laws of Delaware, the state of NMBT's incorporation, and the
corporation law of New Jersey, the state of Summit's incorporation. The
remaining differences in shareholders' rights are due to differences between
NMBT's Restated Certificate of Incorporation and Bylaws and Summit's Restated
Certificate of Incorporation and By-Laws. Upon completion of the merger your
rights as a shareholder of Summit will be governed by New Jersey corporation law
and Summit's Restated Certificate of Incorporation and By-laws.

      OPTION AGREEMENT (SEE PAGE ___) As a condition to its offer to acquire
NMBT, Summit required that NMBT grant Summit a stock option that allows Summit
to buy up to 531,043 shares of NMBT's common stock at an exercise price of
$18.87 per share. Summit may exercise this option if and when events relating to
the potential acquisition of NMBT by someone other than Summit occur. As of the
date of this document, we do not believe that any event of this nature has
occurred. The option agreement is intended to increase the likelihood the merger
will be completed and may be expected to discourage persons who, now or prior to
completion of the merger, may be interested in acquiring NMBT from considering
or proposing such an acquisition. A copy of the stock option agreement is
attached as Appendix C to this Proxy Statement-Prospectus.


                                       5
<PAGE>


                   MARKET PRICES AND DIVIDENDS (SEE PAGE 14)

      Summit common stock is listed and traded on the New York Stock Exchange
under the symbol "SUB". NMBT common stock is included on the Nasdaq Small Cap
Market under the symbol "NMBT". The following table presents for the periods
indicated, rounded to the nearest full cent, the high and low sale prices of a
share of Summit common stock and NMBT common stock and quarterly dividends
declared per share on Summit common stock and NMBT common stock.

      All sale prices and dividends shown below for Summit common stock have
been adjusted for the 3-for-2 stock split paid on September 24, 1997.
<TABLE>
<CAPTION>
                                                                 SUMMIT COMMON STOCK                    NMBT COMMON STOCK
                                                          ---------------------------------      ------------------------------
                                                             SALE PRICE                             SALE PRICE
                                                         ------------------                      -----------------
                                                                                DIVIDENDS                              DIVIDENDS
CALENDAR YEAR                                             HIGH         LOW      PER SHARE         HIGH         LOW     PER SHARE
- -------------                                            -------     -------    ---------        -------     -------   ---------
<S>                                                       <C>         <C>          <C>           <C>         <C>         <C>
1997                                                      $53.38      $28.50       $1.02         $21.25      $11.00      $0.21
1998                                                       53.88       30.75        1.17          21.25       14.75       0.35
1999 (Through December __, 1999)                              --          --        1.29             --          --       0.53(1)
</TABLE>

(1) Includes a portion of the equivalency dividend provided for in the merger
agreement.

      The table below presents, rounded to the nearest full cent, the following
prices for Summit common stock and NMBT common stock:

      o the closing price on October 1, 1999, which was the last full trading
        day prior to the public announcement of the execution of the merger
        agreement, and

      o the closing price on , December __, 1999 (the most recent practicable
        date prior to the date of this Proxy Statement - Prospectus).

      Also set forth below for each of these dates is the pro forma equivalent
in Summit common stock of a share of NMBT common stock computed by multiplying
the applicable price of Summit common stock by an assumed exchange ratio that
was fixed by assuming, for purposes of the exchange ratio criteria set forth in
the merger agreement, that the date set forth in the first column was the date
on which the exchange ratio was determined and that the average price of Summit
common stock during the ten-day period used to determine the exchange ratio was
the last sale price of Summit common stock on that date. The pro forma
equivalents are provided for illustration purposes only. Neither of the pro
forma equivalents are intended to represent the actual pro forma equivalent that
will be applicable to the merger because the actual exchange ratio in the merger
will not be calculated until after the special meeting.


                                       6
<PAGE>

<TABLE>
<CAPTION>
                                                                                         PRO FORMA NMBT               EXCHANGE
                                          SUMMIT                     NMBT                  EQUIVALENT                 RATIO (1)
                                          -------                  --------                ----------                 ---------
<S>                                       <C>                       <C>                       <C>                       <C>
October 1, 1999 .....................     $32.19                    $16.00                    $26.00                    0.8077
December __, 1999
</TABLE>

      ON THE DATE THAT THE MERGER IS COMPLETED AND ON THE DATE YOU RECEIVE
SUMMIT COMMON STOCK CERTIFICATES IN EXCHANGE FOR YOUR NMBT CERTIFICATES, THE
PRICE OF A SHARE OF SUMMIT COMMON STOCK, AND THE PRO FORMA NMBT EQUIVALENT MAY
BE DIFFERENT FROM THOSE SET FORTH ABOVE. YOU SHOULD OBTAIN CURRENT PRICE
QUOTATIONS. IN ADDITION, THE TIMING AND AMOUNT OF FUTURE DIVIDENDS DECLARED ON
SUMMIT COMMON STOCK WILL BE SET AT THE DISCRETION OF SUMMIT'S BOARD OF DIRECTORS
AND WILL BE DETERMINED AFTER CONSIDERATION OF VARIOUS FACTORS, INCLUDING,
WITHOUT LIMITATION, THE EARNINGS AND FINANCIAL CONDITION OF SUMMIT AND ITS
SUBSIDIARIES.

      The following table presents, as of December __, 1999, the current
annualized dividend rate for a share of Summit common stock, for a share of NMBT
common stock, and rounded to the nearest full cent, for the pro forma equivalent
in Summit common stock of a share of NMBT common stock computed by multiplying
the annualized dividend rate of a share of Summit common stock by the lowest,
highest and mid-point exchange ratio described below.

<TABLE>
<CAPTION>
                                                                                         PRO FORMA NMBT               EXCHANGE
                                          SUMMIT                     NMBT                  EQUIVALENT                 RATIO (1)
                                          -------                   -------                ----------                 --------
<S>                                        <C>                    <C>                          <C>                      <C>
December __, 1999 ...................      $1.32                  $0.53(2)                     $0.93                    0.7024
                                                                                                1.07                    0.8077
                                                                                                1.25                    0.9503
</TABLE>
(1) The listed exchange ratios have been furnished for illustration purposes
only. The exchange ratio has not been fixed, will not be fixed until after the
special meeting, and may, when fixed as provided for in the merger agreement,
differ from the exchange ratios set forth above. The exchange ratios set forth
above would be applicable in the following situations:

(2) Includes a portion of the equivalency dividend permitted under the merger
agreement.
                                                             SUMMIT PRICE
                                                                 AS OF
              EXCHANGE RATIO                              DETERMINATION DATE
              --------------                            ----------------------
                  0.7024 .........................      Greater than $37.01563
                  0.8077 .........................              $32.19
                  0.9503 .........................        Less than $27.35938

      The merger agreement provides that for Summit Prices on the Determination
Date of between $37.01563 and $27.35938, the exchange ratio would vary from
0.7024 to 0.9503 (based on the formula of $26.00 divided by the Summit Price).
The exchange ratio of 0.8077 applies only if the Summit Price on the
Determination Date is exactly $32.19, the mid-point between $37.01563 and
$27.35938.


                                       7
<PAGE>



           CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION

      Each of us makes forward-looking statements in this Proxy
Statement-Prospectus, and in our public documents to which we refer, that are
subject to risks and uncertainties. These forward-looking statements include
information about possible or assumed future results of our operations or the
performance of the combined company after the merger and the impact of "Year
2000" compliance issues. Also, when we use any of the words "believes,"
"expects," "anticipates," "estimates" or similar expressions we are making
forward-looking statements.

      These forward-looking statements are intended to qualify for the safe
harbor provided by the Private Securities Litigation Reform Act of 1995. While
each of us believes that its forward-looking statements are reasonable, you
should not place undue reliance on any forward-looking statements, which speak
only as of the date made. You should understand that the following important
factors, in addition to those discussed elsewhere in this Proxy
Statement-Prospectus and in our public documents to which we refer, could affect
the future results and performance of each of us and the combined company. This
could cause those results to differ materially from those expressed in our
forward-looking statements. Factors that might cause such a difference include
the following;

      o deposit attrition, customer loss or revenue loss following the merger
        may be greater than expected;

      o expected cost savings from the merger may not be fully realized or
        realized within the expected time frame; o difficulties in integrating
        our businesses may be greater than expected;

      o competition among depository and other financial institutions may
        increase significantly;

      o inflation and changes in the interest rate environment may reduce our
        margins;

      o general economic or business conditions, either nationally or in the
        combined company's market areas, may be less favorable than expected;

      o adverse changes may occur in the securities markets;

      o legislative or regulatory changes may adversely affect our business;

      o our ability to enter new markets successfully and capitalize on growth
        opportunities may be more difficult than expected; and

      o technological changes, including "Year 2000" data systems compliance
        issues, may be more difficult, time consuming or expensive than we
        expect.
                                       8
<PAGE>



                                  INTRODUCTION

      We are providing this Proxy Statement-Prospectus to shareholders of NMBT
in connection with the solicitation of proxies by the board of directors of NMBT
for the special meeting of shareholders of NMBT to be held on ___________ , 2000
at the Park Lane Office, 100 Park Lane, New Milford, Connecticut at 7:00 p.m.,
local time, or any adjournments thereof. At the special meeting, the
shareholders of NMBT will vote upon (i) a proposal to approve the Agreement and
Plan of Merger dated October 3, 1999 between Summit and NMBT, and (ii) a
proposal to approve in advance of voting on the merger agreement an adjournment
of the special meeting in order to permit further solicitation of proxies by
NMBT if insufficient shares are present at the special meeting to constitute a
quorum or to approve the merger agreement. Shareholders of NMBT are entitled to
exercise dissenters rights with respect to the merger agreement. See "THE MERGER
- -- Dissenters Rights."

      NMBT'S BOARD OF DIRECTORS HAS UNANIMOUSLY APPROVED THE MERGER AGREEMENT
AND UNANIMOUSLY RECOMMENDS THAT NMBT SHAREHOLDERS VOTE FOR ITS APPROVAL. NMBT'S
BOARD ALSO RECOMMENDS THAT NMBT SHAREHOLDERS VOTE FOR APPROVAL OF THE
ADJOURNMENT PROPOSAL.

                                 SPECIAL MEETING

RECORD DATE

      The record date for determining the NMBT shareholders entitled to vote on
the merger at the special meeting is ___________, 1999. Only the holders of
record of NMBT common stock as of the close of business on that date are
entitled to vote at the special meeting. Each share of NMBT common stock
entitles the holder to one vote on each proposal and on all other matters
properly brought before the special meeting. NMBT had no other class of
outstanding voting securities entitled to vote on the merger agreement or the
adjournment proposal at the close of business on the record date. As of the
record date, there were approximately ____ holders of record of NMBT common
stock and __________ shares of NMBT common stock outstanding and eligible to be
voted at the special meeting.

QUORUM AND VOTE REQUIRED

      Generally, in order to conduct business at a shareholders meeting a quorum
must be present. A majority of the shares of NMBT common stock entitled to vote,
whether present in person or represented by proxy, will constitute a quorum for
the transaction of business at the special meeting. By checking the appropriate
box on the proxy card provided by NMBT's board of directors, you may vote "FOR"
approval of the merger agreement, vote "AGAINST" approval of the merger
agreement or "ABSTAIN" from voting. You have similar choices with regard to the
adjournment proposal. Under the Delaware General Corporation Law (the "DGCL"),
the law under which NMBT was formed, the affirmative vote of the majority of the
outstanding shares entitled to vote on the merger is required to approve the
merger agreement and the affirmative vote of a majority of the shares present in
person or represented by proxy at the special meeting is required to approve the
adjournment proposal. Under NMBT's Restated Certificate of Incorporation, the
approval of the merger agreement requires only the affirmative vote of a
majority of the outstanding shares entitled to vote on the merger because the
merger agreement has been approved by at least two-thirds of the members of
NMBT's board of directors. Therefore, the higher shareholder approval
requirements for certain business combinations which have not been so approved
by NMBT's board of directors, or which do not satisfy other conditions set forth
in NMBT's Restated Certificate of Incorporation, are not applicable to the
merger.

VOTING OF PROXIES

      Shares represented by a proxy will be voted at the special meeting as
specified in the proxy.

      PROXIES WITHOUT VOTING INSTRUCTIONS. Proxies that are properly signed and
dated but which do not contain voting instructions will be voted for approval of
the merger and the adjournment proposal. Proxies voted against the merger which
do not contain voting instructions on the adjournment proposal will abstain from
voting on the adjournment proposal.

      ABSTENTIONS. NMBT will count a properly executed proxy marked "ABSTAIN"
for purposes of determining whether there is a quorum and for purposes of
determining the number of shares represented and entitled to vote at the
meeting. Because the affirmative vote of a majority of the shares outstanding
and entitled to vote is required for approval of the merger and the affirmative
vote of a majority of shares present and entitled to vote is required for

                                       9
<PAGE>

approval of the adjournment proposal, if you mark your proxy "ABSTAIN" it will
have the effect of a vote against approval of the merger agreement and against
approval of the adjournment proposal.

      BROKER NON-VOTES. If your shares are held by your broker, your broker will
vote your shares for you only if you provide instructions to your broker on how
to vote your shares. You should follow the directions provided by your broker
regarding how to instruct your broker to vote your shares. In accordance with
the rules of the New York Stock Exchange, your broker cannot vote your shares of
NMBT common stock without specific instructions from you. Because the
affirmative vote of a majority of the shares outstanding and entitled to vote is
required to approve the merger, if you do not instruct your broker how to vote
it will have the effect of a vote against approval of the merger agreement. If
you do not instruct your broker how to vote it will have no effect on approval
of the adjournment proposal.

      OTHER MATTERS. If you sign the proxy card, you grant authority to the
holders of the proxy to vote in their discretion on any other matters that may
properly come before the special meeting or any adjournment or postponements
thereof. NMBT's management does not presently know of any other matters to be
brought before the special meeting. As to other matters that may properly come
before the special meeting, unless otherwise provided in NMBT's Restated
Certificate of Incorporation or Bylaws or by statute, the matter will be
approved if a majority of the votes cast are in favor of the matter.

      If a quorum is not present, or if fewer shares of NMBT common stock are
voted in favor of approval of the merger agreement than the number required for
approval, NMBT currently expects that, if a majority of the shares voted, in
person or by proxy, with respect to the adjournment proposal have been voted in
favor of that proposal, the special meeting will be postponed or adjourned for
the purpose of allowing additional time for obtaining additional proxies or
votes. At any subsequent reconvening of the special meeting all proxies will be
voted in the same manner as such proxies would have been voted at the original
convening of the special meeting (except for any proxies which have effectively
been revoked or withdrawn).

      HOW TO VOTE SHARES HELD THROUGH BROKERS. If you hold NMBT common stock in
the name of a broker or other custodian and wish to vote those shares in person
at the special meeting, you must obtain from the nominee holding the NMBT common
stock in the nominees' name a properly executed "legal proxy" identifying you as
a NMBT shareholder, authorizing you to act on behalf of the nominee at the
special meeting and identifying the number of shares with respect to which the
authorization is granted.

HOW TO REVOKE A PROXY

      Granting a proxy on the enclosed proxy card will not prevent you from
voting in person at the NMBT special meeting or otherwise revoking your proxy.
You may revoke a proxy at any time prior to the special meeting by delivering a
properly signed revocation or a proxy bearing a later date, to Jay C. Lent,
Secretary of NMBT, 55 Main Street, New Milford, Connecticut, 06776-2400 or by
giving written notice of revocation in person at NMBT's special meeting prior to
any vote being taken or appearing in person and voting at the special meeting.

SOLICITATION OF PROXIES

      NMBT will bear the cost of soliciting proxies. In addition to solicitation
by mail, NMBT's directors, officers or employees may solicit proxies from
shareholders by telephone, in person or by other means. These persons will not
receive additional compensation, although they will be reimbursed for the
reasonable, out-of-pocket expenses they incur in connection with this
solicitation. NMBT will also make arrangements with brokerage firms,
fiduciaries, and other custodians who hold shares of record to forward
solicitation materials to the beneficial owners of those shares. NMBT will
reimburse those brokerage firms, fiduciaries, and other custodians for their
reasonable out-of-pocket expenses in connection with this solicitation.
ChaseMellon Consulting Services, a proxy soliciting firm, will assist in the
solicitation of proxies for a fee of $5,500 plus fees for direct telephone
solicitations, if authorized, and reimbursement of reasonable out-of-pocket
costs. Summit will pay the expenses incurred for the printing and mailing of
this Proxy Statement-Prospectus and related filing fees.


                                       10

<PAGE>

STOCK HELD BY NMBT DIRECTORS AND OTHERS

      The directors and executive officers of NMBT and certain persons who may
be deemed to be affiliates of NMBT beneficially owned, as of December __, 1999,
__________ shares of NMBT common stock, assuming they exercised all currently
exercisable options to purchase NMBT common stock. This figure represents _____%
of the outstanding shares of NMBT common stock after exercise of those options.
Each of the directors and executive officers of NMBT has entered into an
agreement with Summit to vote all of their shares of NMBT common stock in favor
of the proposal to approve the merger.

      Summit beneficially owns 1,000 shares of NMBT common stock, which
represents less than 1% of the outstanding shares of NMBT common stock, and
intends to vote these shares in favor of the proposal to approve the merger and
the proposal to adjourn the special meeting, if necessary. In addition, NMBT has
granted Summit a stock option that allows Summit to acquire up to 531,043 shares
of NMBT common stock. This option is not currently exercisable and the NMBT
common stock represented by the option has not been issued and cannot currently
be voted.


                                       11
<PAGE>
                             SELECTED FINANCIAL DATA

      The following tables present selected historical financial information for
Summit and NMBT for each of the five years in the period ended December 31, 1998
and the nine-month periods ended September 30, 1999 and 1998. This information
is provided to aid your financial analysis of the merger. We derived this
information from the consolidated financial statements of Summit and NMBT,
including the respective notes to those financial statements, contained in the
Form 10-Ks and Form 10-Qs of Summit and NMBT filed with the Securities and
Exchange Commission and the Form F-2s and F-4s filed by NMBT Bank with the FDIC,
some of which are incorporated by reference in this Proxy Statement-Prospectus
or have been delivered along with this document. See "WHERE YOU CAN FIND MORE
INFORMATION." The unaudited selected historical financial information for Summit
and NMBT for the nine-month periods ended September 30, 1999 and 1998 reflects,
in the opinion of the managements of Summit and NMBT, respectively, all
adjustments, comprising only normal recurring accruals, necessary for a fair
presentation of the consolidated operating results and financial position of
Summit and NMBT for these interim periods. Results for the interim periods are
not necessarily indicative of results for the full year or any other period.

SUMMIT BANCORP.
SUMMARY OF SELECTED FINANCIAL DATA
(IN THOUSANDS, EXCEPT PER SHARE DATA)

<TABLE>
<CAPTION>
                                   NINE MONTHS ENDED
                                     SEPTEMBER 30,
                                      (UNAUDITED)                                    YEAR ENDED DECEMBER 31,
                                 ---------------------             ----------------------------------------------------------
                                  1999          1998               1998          1997         1996          1995          1994
                                ---------     ---------          ---------     ---------    ---------     ---------     ---------
<S>                            <C>          <C>                <C>           <C>           <C>          <C>           <C>
SUMMARY OF OPERATIONS:
Interest income                $ 1,730,474  $ 1,619,762        $ 2,175,212   $ 2,064,706   $ 1,906,996  $ 1,831,934   $ 1,572,370
Interest expense                   795,231      743,731          1,001,406       919,617       853,707      822,232       599,732
Net interest income                935,243      876,031          1,173,806     1,145,089     1,053,289    1,009,702       972,638
Provision for loan losses          109,500       51,000             66,000        59,100        64,034       72,090        94,347
Securities gains                     7,055        4,440              6,646         5,637         3,862        8,595         4,954
Net income                         332,697      348,755            465,819       370,965       283,675      300,412       213,917
Net income per diluted share          1.91         1.96               2.63          2.09          1.67         1.87          1.36
Cash dividends
  declared per share                  0.96         0.87               1.17          1.02          0.90         0.79          0.63
Average diluted common shares
  outstanding                      174,423      177,505            177,043       177,459       168,788      159,249       155,520

BALANCE SHEET DATA (AT PERIOD END):
Total assets                   $36,163,338  $31,852,214        $33,101,314   $29,964,172   $27,767,271  $26,647,452   $25,484,073
Securities                      11,151,693    9,806,968          9,999,304     9,267,655     8,320,520    8,026,968     8,445,936
Loans                           22,736,054   20,300,663         21,126,577    18,888,366    17,386,059   16,413,222    15,048,579
Deposits                        24,351,165   22,146,853         23,145,128    22,329,436    21,629,531   21,232,926    19,981,071
Long-term debt                   3,970,698    2,401,826          3,572,710     1,246,750       695,793      431,754       552,736
Shareholders' equity             2,851,148    2,627,974          2,722,427     2,612,420     2,290,838    2,130,108     1,813,445
Book value per common share          16.31        15.19              15.67         14.79         13.61        13.04         11.40
</TABLE>


                                       12
<PAGE>


NMBT CORP.
SUMMARY OF SELECTED FINANCIAL DATA
(IN THOUSANDS, EXCEPT PER SHARE DATA)
<TABLE>
<CAPTION>
                                   NINE MONTHS ENDED
                                     SEPTEMBER 30,
                                      (UNAUDITED)                                    YEAR ENDED DECEMBER 31,
                                 ---------------------             ----------------------------------------------------------
                                  1999          1998               1998          1997         1996          1995          1994
                                ---------     ---------          ---------     ---------    ---------     ---------     ---------
<S>                                <C>          <C>                <C>           <C>           <C>          <C>           <C>
SUMMARY OF OPERATIONS:
Interest income                    $18,377      $18,091            $24,190       $22,709       $20,300      $18,463       $14,797
Interest expense                     7,305        7,568             10,120         9,220         7,994        7,084         4,757
Net interest income                 11,072       10,523             14,070        13,489        12,306       11,379        10,040
Provision for loan losses              207          341                371           582           390          160           240
Securities gains                         3           51                 51            --            --           --            --
Net income                           2,786        2,332              3,217         2,898         2,792        2,159         1,339
Net income per diluted share          1.01         0.83               1.15          1.05          1.04         0.83          0.53
Cash dividends declared per
  share                               0.30         0.26               0.35          0.21          0.17         0.13            --
Average diluted common shares
  outstanding                        2,756        2,811              2,799         2,752         2,684        2,601         2,526

BALANCE SHEET DATA (AT PERIOD END):
Total assets                      $391,875     $370,200           $380,481      $336,566      $305,545     $269,176      $252,485
Securities                         116,615      110,898            116,690        84,005        63,761       40,206        38,859
Loans                              244,687      234,571            229,945       223,909       211,686      198,158       190,911
Deposits                           311,519      299,789            311,623       285,595       266,161      247,067       225,758
Long-term debt                      48,859       39,535             37,672        23,145        14,564           --            --
Stockholders' equity                28,806       28,232             28,688        25,330        22,565       20,157        17,546
Book value per common share          10.79        10.68              10.77          9.69          8.72         7.87          6.93
</TABLE>

                                       13
<PAGE>



            COMPARATIVE AND PRO FORMA PER SHARE FINANCIAL INFORMATION

      The per share data below shows the net income, dividends and book value
per share for Summit and NMBT on an historical basis and on a pro forma basis.
We derived the pro forma combined data by combining historical consolidated
financial information of Summit and NMBT using the purchase method of accounting
for business combinations. We derived the pro forma NMBT equivalent data by
multiplying the Summit pro forma data by the exchange ratios assumed in the pro
forma computation. As previously discussed, the exchange ratio has not been
fixed and will not be fixed until after the special meeting. The actual exchange
ratio may differ from the exchange ratios used in the following table.

      The pro forma information does not reflect cost savings anticipated to be
realized from the merger. The purchase accounting adjustments used for the
purpose of calculating the pro forma combined results are subject to final
determination, based upon estimates and other evaluations of fair value, at the
effective time of the merger. Therefore, the pro forma amounts reflected in the
pro forma per share financial information may differ from the amounts ultimately
determined. The unaudited pro forma information is not necessarily indicative of
the combined financial position or results of operations of future periods.

<TABLE>
<CAPTION>
                                                                                   NINE MONTHS ENDED              YEAR ENDED
                                                                                  SEPTEMBER 30, 1999           DECEMBER 31, 1998
                                                                                  ------------------          ------------------
<S>                                                                                      <C>                         <C>
NET INCOME PER DILUTED SHARE
Historical:
  Summit .....................................................................           $1.91                       $2.63
  NMBT .......................................................................            1.01                        1.15
Pro Forma Combined at exchange ratio of:
    0.7024 ...................................................................            1.90                        2.62
    0.8077 ...................................................................            1.90                        2.62
    0.9503 ...................................................................            1.90                        2.62
Pro Forma NMBT Equivalent at exchange ratio of:
    0.7024 ...................................................................            1.34                        1.84
    0.8077 ...................................................................            1.54                        2.12
    0.9503 ...................................................................            1.81                        2.49
DIVIDENDS PER SHARE
Historical:
  Summit .....................................................................           $0.96                       $1.17
  NMBT .......................................................................            0.30                        0.35
Pro Forma Combined at exchange ratio of:
    0.7024 ...................................................................            0.96                        1.17
    0.8077 ...................................................................            0.96                        1.17
    0.9503 ...................................................................            0.96                        1.17
Pro Forma NMBT Equivalent at exchange ratio of:
    0.7024 ...................................................................            0.67                        0.82
    0.8077 ...................................................................            0.78                        0.95
    0.9503 ...................................................................            0.91                        1.11
BOOK VALUE PER SHARE
Historical:
  Summit .....................................................................           16.31                       15.67
  NMBT .......................................................................           10.79                       10.77
Pro Forma Combined at exchange ratio of:
    0.7024 ...................................................................           16.53                       15.67
    0.8077 ...................................................................           16.51                       15.67
    0.9503 ...................................................................           16.47                       15.67
Pro Forma NMBT Equivalent at exchange ratio of:
    0.7024 ...................................................................           11.61                       11.01
    0.8077 ...................................................................           13.34                       12.66
    0.9503 ...................................................................           15.65                       14.89
</TABLE>

                                       14
<PAGE>

                        MARKET PRICE AND DIVIDEND MATTERS

MARKET PRICE AND DIVIDEND HISTORY

      Summit common stock, including associated preferred stock purchase rights,
is listed and traded on the New York Stock Exchange and is quoted under the
symbol "SUB". NMBT common stock is listed and traded on the Nasdaq Small Cap
Market and is quoted under the symbol "NMBT". The following table sets forth,
for the periods indicated, the high and low sale prices as reported in published
financial sources, and quarterly dividends declared per share, of Summit common
stock and NMBT common stock.

      Where necessary, sale prices shown in the table below have been rounded to
the nearest full cent. All sale prices and dividends shown below for Summit
common stock have been adjusted for the 3-for-2 stock split paid on September
24, 1997.

<TABLE>
<CAPTION>
                                                             SUMMIT COMMON                               NMBT COMMON
                                                    ------------------------------             ------------------------------
                                                      SALES PRICE                                SALES PRICE
                                                   -----------------                          -----------------
                                                  HIGH            LOW        DIVIDENDS       HIGH           LOW         DIVIDEND
                                                  -----          -----       ---------       -----         -----        --------
<S>                                               <C>           <C>            <C>          <C>            <C>            <C>
1997
First Quarter ...............................     $33.33        $28.50         $0.24        $12.50         $11.00         $0.05
Second Quarter ..............................      35.08         28.58          0.24         15.50          11.25          0.05
Third Quarter ...............................      45.31         33.58          0.27         19.38          15.00          0.055
Fourth Quarter ..............................      53.38         38.38          0.27         21.25          16.25          0.055

1998
First Quarter ...............................      53.88         45.88          0.27         21.00          17.00          0.08
Second Quarter ..............................      53.50         44.75          0.30         21.25          18.00          0.09
Third Quarter ...............................      49.44         32.75          0.30         21.00          18.75          0.09
Fourth Quarter ..............................      45.00         30.75          0.30         19.63          14.75          0.09

1999
First Quarter ...............................      44.50         37.06          0.30         17.25          13.88          0.10
Second Quarter ..............................      44.00         37.38          0.33         16.50          13.25          0.10
Third Quarter ...............................      42.56         30.63          0.33         17.50          13.69          0.10
Fourth Quarter (through
  December __, 1999)                                                            0.33                                       0.23(1)
</TABLE>
(1) Includes a portion of the equivalency dividend provided for in the merger
    agreement.

      On October 1, 1999, which was the last full trading day prior to the
public announcement of the signing of the merger agreement, the last sale price
of a share of Summit common stock was $32.19 and the last sale price of a share
of NMBT common stock was $16.00. On December __, 1999, the last sale price of
Summit common stock was $_____ and the last sale price of NMBT common stock was
$______.

      ON THE DATE THE MERGER IS COMPLETED AND ON THE DATE YOU RECEIVE A SUMMIT
STOCK CERTIFICATE IN EXCHANGE FOR YOUR NMBT CERTIFICATE(S), THE PRICE OF A SHARE
OF SUMMIT COMMON STOCK MAY DIFFER FROM THOSE SET FORTH ABOVE. NMBT SHAREHOLDERS
SHOULD OBTAIN CURRENT PRICE QUOTATIONS. IN ADDITION, PAST DIVIDENDS PAID ON
SUMMIT COMMON STOCK AND NMBT COMMON STOCK ARE NOT NECESSARILY INDICATIVE OF
FUTURE DIVIDENDS WHICH MAY BE PAID. NO ASSURANCE CAN BE GIVEN CONCERNING
DIVIDENDS TO BE DECLARED AND PAID ON SUMMIT COMMON STOCK AND NMBT COMMON STOCK
BEFORE OR AFTER THE MERGER. THE TIMING AND AMOUNT OF FUTURE DIVIDENDS DECLARED
ON SUMMIT COMMON STOCK WILL BE SET AT THE DISCRETION OF SUMMIT'S BOARD OF
DIRECTORS AND WILL DEPEND ON VARIOUS FACTORS, INCLUDING, WITHOUT LIMITATION, THE
EARNINGS AND FINANCIAL CONDITION OF SUMMIT AND ITS SUBSIDIARIES.

COORDINATION AND DETERMINATION OF DIVIDENDS UNDER MERGER AGREEMENT

      In order to ensure that NMBT shareholders are paid no more, and no less,
than one regular dividend in each calendar quarter until the merger is
consummated, NMBT has agreed to coordinate with Summit the declaration of any
dividends and the setting of any dividend record or payment dates. Under the
merger agreement, NMBT may declare a quarterly dividend equal to Summit's
dividend rate multiplied by 0.7024. In addition, if the actual exchange ratio
for the merger is greater than 0.7024, NMBT shareholders will be entitled to
receive a cash payment

                                       15
<PAGE>

per share of NMBT stock held at the effective time of the merger equal to the
difference between the dividends that would have been paid if the higher
exchange ratio had been applied and the dividends actually paid by NMBT.

DIVIDEND LIMITATIONS

      Summit's primary source of funds to pay dividends to its shareholders is
provided by dividends from its subsidiary banks. Summit's bank subsidiaries are
restricted by law in the amount of dividends they may pay to Summit. In
addition, some debt agreements restrict the amount of dividends Summit may pay
to its shareholders. At September 30, 1999, Summit's subsidiary banks had
approximately $59.1 million available, under the most restrictive limitations,
for the payment of dividends to Summit.

      Similarly, NMBT's primary source of funds to pay dividends to its
shareholders is provided by dividends from NMBT Bank. NMBT Bank is also
restricted by law in the amount of dividends that it may declare and pay to
NMBT.

                 PROPOSAL I -- APPROVAL OF THE MERGER AGREEMENT

                                   THE MERGER

      The discussion in this Proxy Statement-Prospectus of the merger and the
description of the principal terms and conditions of the merger agreement and
the merger are subject to and qualified in their entirety by reference to the
merger agreement. A copy of the merger agreement is attached hereto as Appendix
A and is incorporated herein by reference.

GENERAL

      The merger agreement provides for the acquisition of NMBT by Summit,
pursuant to the merger of NMBT with and into Summit or a wholly owned subsidiary
of Summit or the merger of a wholly owned subsidiary of Summit with and into
NMBT, as determined by Summit. Summit has decided to merge NMBT into Summit,
with Summit as the surviving corporation in the merger.

      Upon consummation of the merger, each outstanding share of NMBT common
stock other than (1) shares of NMBT common stock beneficially owned by Summit or
a subsidiary of Summit, other than shares held in a fiduciary capacity or as a
result of foreclosures or debts previously contracted, if any, (2) shares of
NMBT common stock beneficially owned by NMBT or a subsidiary of NMBT, other than
shares of NMBT common stock held in a fiduciary capacity or as a result of
forfeitures or debts previously contracted, if any, and (3) shares of NMBT
common stock held in the treasury of NMBT, if any, will be converted into and
represent the right to receive whole shares of Summit common stock and cash
instead of fractional shares resulting from the conversion based upon an
exchange ratio to be determined, adjusted if necessary in accordance with
certain anti-dilution provisions described below. The cash paid for each
fractional share resulting from the conversion will be an amount equal to the
fractional share multiplied by the closing price of a share of Summit common
stock on the New York Stock Exchange Composite Transactions List on the last
trading day ending prior to the effective time of the merger. The exchange ratio
is subject to appropriate adjustments if, from the date of the merger agreement
to the effective time of the merger, the outstanding shares of Summit common
stock are increased, decreased, changed into or exchanged for a different number
or kind of shares or securities through merger, recapitalization,
reclassification, stock dividend, stock split or reverse stock split or other
similar changes. Except in the case of adjustment to prevent dilution, the
exchange ratio will not be lower than 0.7024 and will not be higher than 0.9503.
Summit expects to repurchase in the open market the number of shares of Summit
common stock equal to the approximate number of shares to be issued in the
merger or reissue previously acquired shares held in treasury, depending on
market conditions or other factors.

CLOSING AND EFFECTIVE TIME

      The merger agreement provides that, unless Summit designates an earlier
date and gives NMBT at least five business days notice of the new date, we will
hold the closing of the merger 45 business days after the last to occur of the
following (the "Scheduled Date"):

      o if the transactions contemplated by the merger agreement are being
        contested in any legal proceedings, the date that all such proceedings
        have been brought to a conclusion favorable, in the judgment of Summit
        and
                                       16
<PAGE>

        NMBT, to the consummation of the transactions contemplated by the
        merger agreement or any prior date as Summit and NMBT shall elect,
        whether or not those proceedings have been brought to a conclusion; or

      o the date on which the approvals of NMBT's shareholders, the Board of
        Governors of the Federal Reserve System and the Connecticut Banking
        Commissioner have been received and any required waiting periods have
        expired.

      If NMBT shareholders approve the merger agreement by the required vote,
all other conditions of the merger are satisfied or waived and the closing is
held on the date set for closing, the merger will become effective at the date
and time specified in the certificates of merger required to be filed with the
Secretary of State of the States of New Jersey and Delaware following the
closing date. If NMBT shareholders approve the merger agreement on the scheduled
date of the special meeting, subject to the satisfaction or waiver of certain
other conditions described herein, we presently expect that the merger will
become effective during the first calendar quarter of 2000. Either party may
terminate the merger agreement if, among other things, the closing fails to
occur on or before the later of July 1, 2000 or 45 business days after the last
required approval or resolution of any legal challenges to the merger or
determination to close despite a legal challenge, if the approval, resolution or
determination occurred on or before August 1, 2000, the NMBT shareholders do not
approve the merger agreement at the meeting of shareholders called for that
purpose or a party materially breaches a warranty, representation or covenant
and does not cure the breach within 30 days; however, a party may not exercise
this right if the failure to close is due solely to that party's failure to
perform or observe agreements required by the merger agreement to be performed
or observed by it on or before the closing date. Summit's board of directors and
NMBT's board of directors each also has the right to terminate the merger
agreement under certain circumstances. See "THE MERGER -- The Merger Agreement
- -- Conditions to the Merger; Termination."

      EXCHANGE RATIO

      In the Merger, your shares of NMBT common stock will be converted into and
represent the right to receive Summit common stock and cash instead of
fractional shares. However, the exchange ratio, and the date as of which the
exchange ratio will be determined, have not been fixed and will not be fixed
until a date after the special meeting. Once the Determination Date has been
fixed, the exchange ratio will be determined as follows, based on the average of
the closing prices of a share of Summit common stock as reported on the
NYSE-Composite Transactions List for the ten consecutive full trading day on
which a share of Summit common stock is traded, ending on the Determination Date
(the "Summit Price")

      (1) If the Summit Price is greater than $37.01563, the exchange ratio will
be 0.7024.

      (2) If the Summit Price is equal to or less than $37.01563 and equal to or
greater than $27.35938, the exchange ratio will be equal to the quotient
obtained by dividing $26.00 by the Summit Price.

      (3) If the Summit Price is less than $27.35938, the exchange ratio will be
0.9503.

      The "Determination Date" will be the date which is seven business days
prior to the 45th business day after the receipt of all required approvals and
the resolution of any legal challenges to the merger or determination to close
despite a legal challenge or, alternatively, the date designated by Summit,
along with the closing date, in the closing notice sent by Summit to NMBT.
However, the merger agreement does not permit the closing notice to be sent to
NMBT by Summit until (i) NMBT shareholders have approved the merger, (ii) all
required regulatory approvals have been received and applicable waiting periods
have expired and (iii) any litigation contesting the merger has been resolved to
the satisfaction of Summit and NMBT or Summit and NMBT agree to close the merger
despite the existence of litigation. Consequently, under the merger agreement,
it is not possible for the Determination Date to be designated, or the exchange
ratio to be fixed, prior to the approval by NMBT shareholders of the merger. You
will, therefore, be required to vote on the proposal to approve the merger
agreement prior to the determination of the exchange ratio.

      The Merger Agreement provides that if Summit designates a closing date
prior to the 45th business day after the receipt of all required approvals and
resolutions of legal challenges, Summit must send the closing notice not less
than five business days in advance of the Closing Date designated by Summit in
the closing notice or a shorter period as agreed to in writing by NMBT, and
Summit must designate one of the business days in the ten business day period
immediately preceding the closing date as the Determination Date. Due to the
range of dates which could be designated by Summit as the Determination Date, it
is possible that Summit could select a pricing period (by


                                       17
<PAGE>

virtue of its selection of a Determination Date) which includes the date of the
NMBT special meeting and up to five of the business days immediately before that
date.

      The Exchange Ratio is also subject to appropriate adjustments in the event
that, from the date of the merger agreement to the effective time of the merger,
the outstanding shares of Summit common stock are increased, decreased, changed
into or exchanged for a different number or kind of shares or securities through
reorganization, recapitalization, reclassification, stock dividend, stock split
or reverse stock split or other similar changes.

EXCHANGE OF NMBT CERTIFICATES

      Prior to the effective time of the merger, Summit will appoint First
Chicago Trust Company of New York, a division of Equiserve or another entity
reasonably satisfactory to NMBT as the exchange agent for the merger. As
promptly as practicable after the effective time, but in no event more than ten
days after the exchange agent receives an accurate and complete list of all
holders of record of outstanding NMBT common stock as of the effective time of
the merger, Summit will cause the exchange agent to send to each NMBT
shareholder a letter of transmittal and instructions for exchanging his or her
NMBT common stock certificate(s) for a certificate representing the number of
whole shares of Summit common stock and, if applicable, a check for the
fractional share amount and any additional dividend payment to which he or she
is entitled.

      To effect a proper surrender and exchange of NMBT stock certificates, you
must surrender to the exchange agent all of your NMBT stock certificates along
with properly executed and completed letters of transmittal. Until you have
properly surrendered your NMBT stock certificate(s), Summit may, at its option,
refuse to pay to you dividends or other distributions, if any, payable to
holders of Summit common stock. However, upon proper surrender and exchange of
your NMBT stock certificate(s), Summit will pay to you the amount, without
interest, of dividends and other distributions, if any, to which you were
entitled but were not paid. No transfer of NMBT common stock will be made on the
stock transfer books of NMBT at and after the effective time of the merger.

      The exchange agent shall have reasonable discretion to determine whether
letters of transmittal have been properly completed and executed and to
disregard immaterial defects, and any good faith decisions of Summit regarding
any matters as may be referred to it by the exchange agent shall be binding and
conclusive.

      Summit will not issue stock certificates or scrip certificates for
fractions of shares of Summit common stock and NMBT shareholders who would
otherwise be entitled to receive fractions of shares of Summit common stock will
have none of the rights with respect to any fractions of shares, including,
without limitation, the right to receive dividends, that a holder of a full
share of Summit common stock would possess in respect of a full share. Instead,
these NMBT shareholders will receive cash for their fractions of shares.

      If a NMBT shareholder surrenders more than one NMBT stock certificate,
Summit will issue to that NMBT shareholder a single Summit stock certificate
representing the total number of whole shares of Summit common stock to which
that owner is entitled pursuant to the merger agreement based on the total
number of shares of NMBT common stock represented by all NMBT stock certificates
surrendered by that NMBT shareholder.

      YOU SHOULD NOT SURRENDER YOUR NMBT STOCK CERTIFICATES FOR EXCHANGE UNTIL
YOU RECEIVE A LETTER OF TRANSMITTAL, INSTRUCTIONS AND OTHER EXCHANGE MATERIALS
FROM THE EXCHANGE AGENT. HOWEVER, YOU ARE URGED TO NOTIFY CHASEMELLON
SHAREHOLDER SERVICES, LLC , NMBT'S TRANSFER AGENT, NOW AT (800) 288-9541 IF YOUR
NMBT STOCK CERTIFICATES ARE LOST, STOLEN, DESTROYED OR NOT PROPERLY REGISTERED,
IN ORDER TO BEGIN THE PROCESS OF OBTAINING REPLACEMENT NMBT STOCK CERTIFICATES.

CONVERSION OF NMBT STOCK OPTIONS

      Each stock option relating to NMBT common stock granted pursuant to the
New Milford Bank & Trust Company 1988 Non-Statutory Stock Option Plan and the
New Milford Bank & Trust Company 1994 Nonqualified Stock Option Plan which is
outstanding and unexercised at the effective time of the merger, will be
converted automatically at the effective time of the merger into an option to
purchase Summit common stock. Subject to the adjustment in exercise price per
share and number of shares and the two additional revisions, described below,
each converted option will continue to be governed by the terms of the
applicable NMBT stock option plan and the stock option agreement by which it was
evidenced, including terms and provisions as to exercises. In each case:

                                       18
<PAGE>

      o the number of shares of Summit common stock subject to the converted
        option will be equal to the number of shares of Summit common stock
        which would have been issued in the merger if the shares of NMBT common
        stock subject to that option were issued and outstanding immediately
        prior to the effective time, rounded down to the next lower full share;
        and

      o the exercise price per share of Summit common stock subject to the
        converted option will be equal to the aggregate exercise price that
        would have been payable upon exercise in full of the NMBT stock option
        divided by the number of shares of Summit common stock which may be
        acquired upon exercise of the converted option.

      o converted options held by any NMBT employee whose employment with Summit
        is terminated within one year of the effective time of the merger, other
        than a termination for cause, will continue to be exercisable until the
        later of (1) the option exercise termination date provided for in the
        NMBT option or (2) the first anniversary date of the effective date of
        the merger; however, in no case may the converted option be exercised
        after the option expiration date.

      o for 30 days following the effective time of the merger, holders of
        converted options may elect to receive a cash payment instead of
        exercising their option. The cash payment will be equal to the
        difference between the converted option exercise price and the Summit
        Price.

      After the effective time of the merger and within 45 days after Summit
receives an accurate and complete list of all holders of NMBT stock options,
Summit will issue to each holder of converted options, upon surrender of all
agreements under which NMBT stock options were issued to the holder, appropriate
instruments confirming the conversion described above. However, Summit will have
no obligation to issue confirming instruments or any shares of Summit common
stock issuable upon exercise of a converted option until the shares of Summit
common stock issuable upon exercise of the converted options have been
registered with the Securities and Exchange Commission, authorized for listing
on the New York Stock Exchange and authorized for sale by any appropriate state
securities regulators. Summit will use its best efforts to effect these
registrations, listings and authorizations within 45 days after NMBT delivers to
Summit the above mentioned optionholder list.

RECOMMENDATION OF NMBT BOARD

      THE MERGER AGREEMENT HAS BEEN UNANIMOUSLY APPROVED BY NMBT'S BOARD OF
DIRECTORS. NMBT'S BOARD OF DIRECTORS BELIEVES THAT THE MERGER IS IN THE BEST
INTERESTS OF NMBT SHAREHOLDERS. NMBT'S BOARD OF DIRECTORS UNANIMOUSLY RECOMMENDS
THAT NMBT SHAREHOLDERS VOTE "FOR" THE PROPOSAL TO APPROVE THE MERGER AGREEMENT.

BACKGROUND

      From time to time, NMBT's board of directors, with the assistance of NMBT
management, its financial advisor and its legal counsel, has evaluated various
strategic alternatives, including growth by internal expansion, purchase of
other financial institutions and acquisition of NMBT by another financial
institution. In the spring of 1999, acting upon the instructions of NMBT's board
of directors, NMBT's management was again directed to consider and advise the
board on strategic alternatives. As in the past, NMBT's financial advisor,
Advest, Inc. ("Advest"), was engaged to assist NMBT's board and management.

      In mid July, 1999, John R. Feeney, Executive Vice President of Summit,
telephoned Michael D. Carrigan, President and a director of NMBT, and requested
a meeting to discuss a potential business combination between NMBT and Summit.
After consulting with Louis Funk, Jr., Chairman of the NMBT board of directors
and a director of NMBT, Mr. Carrigan, Mr. Funk, and Robert W.X. Martin, a
director, met with Mr. Feeney and Frederick Afragola, Chairman of Summit Bank
(CT), on July 27, 1999. During the meeting, Mr. Feeney expressed Summit's
interest in acquiring NMBT.

      Shortly thereafter, Messrs. Funk and Carrigan met informally with two
members of another financial institution's board of directors, who expressed the
interest of their institution to acquire NMBT.

      On August 4, 1999, a special meeting of NMBT's board of directors was held
for the specific purpose of reviewing NMBT's strategic business alternatives,
and in particular, of evaluating the verbal expressions of interest received
from Summit and the other financial institution. Also present at the meeting
were representatives of

                                       19
<PAGE>

NMBT's special legal counsel, Mintz, Levin, Cohn, Ferris, Glovsky and Popeo,
P.C. ("Mintz Levin"), and NMBT's financial advisor, Advest. After an extended
discussion, NMBT's board of directors arrived at a consensus that the sale of
NMBT at that time may not be in the best interest of NMBT shareholders, but
given the current and prospective highly competitive banking environment in the
primary markets served by NMBT and the anticipated change in the accounting
treatment for business combinations, and the possible moderating effect of that
change upon the consideration to be received upon a sale of a financial
institution, the NMBT board of directors instructed management to more fully
explore the level of interest, if any, which selected institutions, including
Summit, may have to acquire NMBT. The NMBT board of directors concluded that a
wider range of potential suitors should be approached, and instructed Advest to
contact two additional financial institutions which the NMBT board of directors
determined should have the resources and interest to acquire NMBT. Mr. Carrigan
was instructed to contact the financial institution whose representatives had
met with Messrs. Funk and Carrigan in July. Advest was instructed to directly
contact Summit, and to request that its level of interest be expressed in
writing and to communicate with the two other identified potential suitors.

      On August 13, 1999, and again on August 23, 1999, Mr. Carrigan and Jay C.
Lent, Executive Vice President and Chief Financial Officer of NMBT, met with the
chief executive officer of the other financial institution which had previously
expressed an interest in acquiring NMBT to discuss specific elements, including
pricing parameters, of a possible combination between such institution and NMBT.
At the same time, Advest approached Summit and initiated contacts with the two
other designated potential suitors.

      Advest advised NMBT's board of directors, at a special meeting held on
September 8, 1999, of the expressions of interest received as of that date,
including initial pricing information. Two institutions, including Summit, had
submitted written expressions of interest, and a third had provided an oral
expression. The fourth institution requested an additional week to evaluate its
level of interest, and to determine whether it would submit an expression of
interest. Advest distributed a written financial analysis of the four potential
suitors and a comparison of the three proposals received. The NMBT board of
directors concurred that the price level received by Summit was within an
acceptable range and authorized management to allow Summit to proceed with its
on-site due diligence review. In addition, the NMBT board of directors granted
the week deferral requested by the fourth institution and deferred further
communication with the other two potential suitors.

      On September 10, 1999, Advest received a written expression of interest
from the fourth institution and on September 14, 1999 representatives of NMBT's
management and Advest, including Messrs. Carrigan and Lent, met with
representatives of the fourth potential suitor.

      At its regularly scheduled meeting on September 15, 1999, the NMBT board
of directors reviewed, with representatives of Advest, the initial proposal
received from Summit and management's discussion with, and the expression of
interest of, the fourth potential suitor. During the next several days, Summit
performed its on-site due diligence review. Subsequently, the fourth institution
conveyed a second expression of interest, including an increased price proposal.

      On September 22, 1999, NMBT's board of directors held a special meeting.
Robert Cox, President of Summit, and Mr. Feeney made a presentation to the NMBT
directors. Messrs. Cox and Feeney defined and discussed Summit's overall
business philosophy, target markets, future plans, recent trends in the price of
its common stock, status of non-performing assets, anticipated transition
procedures, and other matters. After Messrs. Cox and Feeney departed,
representatives of Advest reviewed with the NMBT board of directors the four
proposals received to date. Particular focus was placed on the evaluation of
each potential suitor's stock since each suitor had proposed a stock-for-stock
transaction.

      A special meeting of NMBT's board of directors was held on September 27,
1999. A representative of Advest reported that he had been advised that the due
diligence review conducted by Summit had proceeded well, and that Summit had
expressed an interest to proceed at the per share price level initially
communicated by Summit. During the discussions, it was noted that:

      o the Summit proposed per share price range was the highest received;

      o the directors were impressed with Summit's long-term potential;

      o Summit's offer, as represented by the exchange ratio formula, would be a
        substantial premium to the current per share market price for NMBT
        common stock; and

                                       20
<PAGE>

      o considering various factors, including those mentioned above and the
        liquidity of Summit stock, Summit's management philosophy, the prospects
        for NMBT on a stand-alone basis, Summit's willingness to grant an
        equivalent dividend during the period between announcement and closing
        and Summit's agreement to a reasonable ceiling and floor on the exchange
        ratio, the Summit offer appeared to be in the best interests of NMBT
        shareholders.

      Further, the directors concluded that, based upon Summit's experience in
acquiring community banks, including community banks in Connecticut, NMBT's
customers would be well served by Summit. The directors then discussed certain
additional business issues which they concluded should be reflected in the
definitive agreement.

      On September 30, 1999, a copy of the initial draft of the definitive
merger agreement was distributed to each director for review. A special NMBT
board of director's meeting was held on Saturday, October 2, 1999. Also present
at the meeting were representatives of Mintz Levin and Advest. A representative
of Mintz Levin distributed a binder containing recent drafts of the definitive
merger agreement and other ancillary acquisition documents and reviewed with the
directors, as had been done previously, their fiduciary responsibilities and
reviewed separately the definitive merger agreement, the stock option agreement,
and the affiliate agreements, as well as the responsibilities of NMBT and the
NMBT board of directors with respect to certain trading and disclosure matters.
A representative of Advest provided a written comparative analysis of the Summit
offer, and advised the NMBT board of directors that Advest was prepared to
render a fairness opinion with respect to the Summit offer. The NMBT board of
directors scheduled another special meeting for the evening of Sunday, October
3, 1999, thus providing the directors time to reflect upon the discussion held
during the October 2, 1999, meeting.

      At the October 3, 1999, meeting, held via telephone conference, there was
further discussion regarding the terms set forth in the definitive agreement,
after which, the NMBT board of directors unanimously approved the definitive
merger agreement and stock option agreement.

REASONS FOR THE MERGER

      NMBT's board of directors has approved the merger agreement and the
transactions provided for by the merger agreement and determined that the merger
is fair to, and in the best interests of, NMBT and its shareholders. The NMBT
board of directors therefore recommends that holders of NMBT common stock vote
to approve and adopt the merger agreement and the transactions contemplated by
the merger agreement.

      The NMBT board of directors believes that the merger will enable holders
of NMBT common stock to realize increased value due to the premium over market
price per share of NMBT common stock, as represented by the exchange ratio
formula. The NMBT board of directors also believes that the merger may enable
NMBT's shareholders to participate in opportunities for appreciation of Summit
common stock. See "-Background of the Merger" and "-Opinion of NMBT's Financial
Advisor." In reaching its decision to approve the merger agreement, the NMBT
board of directors consulted with Mintz Levin, regarding the legal terms of the
merger and the board's fiduciary obligations in its consideration of the
proposed merger, with Advest regarding the financial aspects and fairness of the
proposed merger and with management of NMBT. Without assigning any relative or
specific weight, the NMBT board of directors considered the following material
factors, many of which are subjective in nature, both from a short-term and
long-term perspective:

     (i)   the NMBT board of director's familiarity with, and review of Summit's
           business, financial condition, results of operations and prospects,
           including, but not limited to, its potential growth, development,
           profitability and the business risks associated therewith;

     (ii)  the current and prospective environment in which NMBT operates,
           including national and local economic conditions, the highly
           competitive environment for financial institutions generally, the
           increased regulatory burden on financial institutions, and the trend
           toward consolidation in the financial services industry;

     (iii) the potential for appreciation in market value of NMBT common stock
           on both a short- and long-term basis, as a stand-alone entity, in
           comparison to the exchange ratio formula;

     (iv)  information about Summit derived from publicly available data as well
           as other financial data provided by Summit and discussions with
           Summit management concerning the business, financial conditions,
           results of operations and asset quality of Summit;

                                       21
<PAGE>

      (v)  the competitive position and future growth prospects of Summit
           following the merger;

     (vi)  the presentations of Advest regarding the merger and the opinion of
           Advest that as of the date of the merger agreement, the merger
           consideration was fair, from a financial point of view, to the
           holders of NMBT common stock (see "-Opinion of NMBT's Financial
           Advisor");

     (vii) the financial terms and other conditions of the merger agreement;

     (viii)the effect on NMBT's employees and market area of the merger with
           Summit, including potential employee retention and stay bonuses; and

     (ix)  the expectation that Summit will continue to provide quality services
           to the communities and customers served by NMBT and Summit's
           capacity, as a larger institution with a larger capital base, to
           provide a wider range of services and enhanced access to credit to
           such customers and communities.

OPINION OF NMBT'S FINANCIAL ADVISOR

      Advest has acted as financial advisor to NMBT in connection with the
merger. As part of its engagement, Advest delivered its written opinion dated
October 2, 1999 to NMBT's board of directors at the October 2, 1999 NMBT board
of directors meeting. Advest's opinion stated that, as of October 2, 1999, the
exchange ratio was fair from a financial point of view to the holders of NMBT
common stock. Again, as part of its engagement, Advest delivered an updated
written opinion as of the date of this Proxy Statement--Prospectus. Except as
discussed herein, no limitations were imposed by NMBT's board of directors upon
Advest with respect to investigations made or the procedures followed by Advest
in rendering its opinion.

      THE FULL TEXT OF THE WRITTEN OPINION BY ADVEST, DATED ______________,
WHICH SETS FORTH THE ASSUMPTIONS MADE, MATTERS CONSIDERED AND QUALIFICATIONS AND
LIMITATIONS ON THE REVIEW UNDERTAKEN, IS ATTACHED AS APPENDIX B TO THIS PROXY
STATEMENT-PROSPECTUS. NMBT SHAREHOLDERS ARE URGED TO READ THIS OPINION CAREFULLY
AND IN ITS ENTIRETY. ADVEST'S OPINION IS DIRECTED ONLY TO THE FAIRNESS, FROM A
FINANCIAL POINT OF VIEW, OF THE EXCHANGE RATIO TO THE HOLDERS OF NMBT COMMON
STOCK, HAS BEEN PROVIDED TO NMBT'S BOARD OF DIRECTORS IN CONNECTION WITH ITS
EVALUATION OF THE MERGER, DOES NOT ADDRESS THE MERITS OF THE UNDERLYING DECISION
BY NMBT TO ENGAGE IN THE MERGER, AND DOES NOT CONSTITUTE A RECOMMENDATION TO ANY
NMBT SHAREHOLDER AS TO HOW THE SHAREHOLDER SHOULD VOTE. THE SUMMARY OF THE
OPINION OF ADVEST SET FORTH IN THIS PROXY STATEMENT-PROSPECTUS IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO THE FULL TEXT OF THE OPINION.

      In arriving at its opinion, Advest among other things:

      o Reviewed and analyzed certain publicly available financial statements
        for NMBT and Summit and financial information made available to Advest
        by the management of NMBT and Summit;

      o Analyzed certain internal financial statements, including financial
        projections and other financial and operating data prepared by the
        management of NMBT;

      o Discussed the past, present and future operations, financial condition
        and prospects of NMBT and Summit with the management of NMBT and Summit,
        respectively;

      o Reviewed the stock price performance and trading activity of NMBT common
        stock and Summit common stock;

      o Compared the financial performance and condition of NMBT and Summit with
        that of certain other comparable publicly traded companies;

      o Reviewed and discussed with the management of NMBT and Summit the
        strategic objectives of the merger and certain other benefits of the
        merger;

      o Reviewed the financial terms, to the extent publicly available, of
        certain merger and acquisition transactions comparable, in whole or in
        part, to the merger;

      o Reviewed the pro forma impact of the merger and the contribution of NMBT
        and Summit to the new pro forma combined entity on the basis of a number
        of key financial categories in relation to pro forma ownership;

                                       22
<PAGE>

      o Reviewed the merger agreement and the stock option agreement; and

      o Performed such other analyses and investigations as Advest deemed
        appropriate.

      In rendering its opinion, Advest assumed and relied upon, without
independent verification, the accuracy and completeness of all of the financial
and other information reviewed by it for the purposes of providing its opinion,
and did not assume any responsibility for independent verification of the
information. Advest did not assume any responsibility for independent valuation
and appraisal of the assets and liabilities of NMBT. With respect to financial
projections, Advest assumed that they were reasonably prepared by the management
of NMBT on bases reflecting the best currently available estimates and judgments
of the future financial performance of NMBT. Advest expresses no view as to the
reasonableness of the projections provided or the assumptions on which they were
based. Advest also assumed that the merger would be consummated in accordance
with the terms of the merger agreement without material waiver or modification.
Advest's opinion dated October 2, 1999, [and its opinion dated the date of this
Proxy Statement-Prospectus] are based upon economic, market and other conditions
as they existed and could be evaluated on October 2, 1999, and [________, 1999],
respectively. The forecasts or projections furnished to Advest for NMBT were
prepared by the management of NMBT. As a matter of policy, NMBT does not
publicly disclose internal management forecasts, projections or estimates of the
type furnished to Advest in connection with its analysis of the merger, and such
forecasts, projections and estimates were not prepared with a view towards
public disclosure. These forecasts, projections and estimates were based on
numerous variables and assumptions which are inherently uncertain and which may
not be within the control of management, including, without limitation, general
economic, regulatory and competitive conditions. Accordingly, actual results
could vary materially from those set forth in the forecasts, projections and
estimates provided by the management of NMBT. The following is a summary of the
material analyses presented by Advest to NMBT's board of directors at its
meeting held on October 2, 1999.

      COMPARABLE PUBLIC COMPANY ANALYSES. Advest reviewed certain financial,
operating and stock market performance data of 12 publicly traded banks and bank
holding companies headquartered in the Northeast region of the United States,
each with assets between $200 million and $750 million as of and for the twelve
months ending June 30, 1999 (the "NMBT Peer Companies"). Advest analyzed the
relative performance and value of NMBT by comparing certain publicly available
financial data of NMBT with that of the NMBT Peer Companies, including ratios of
tangible equity to assets, total risk based capital ratios, return on average
assets, return on average equity and market price to estimated earnings per
share in 1999 and market price to book value. The operating data for NMBT and
the NMBT Peer Companies were as of or for the twelve month period ended June 30,
1999. All stock prices were as of the market close on October 1, 1999. The
analyses yielded the following comparison of the medians for the NMBT Peer
Companies with NMBT, respectively:

      o Tangible equity to assets ratios of 8.3% and 7.2%;

      o Total risk based capital ratios of 14.5% and 14.3%;

      o Return on average asset ratios of 1.1% and .9%;

      o Return on average equity ratios of 12.7% and 12.1%;

      o Market price to estimated earnings per share in 1999 of 12.7x and
        12.1x; and

      o Market price to book value multiples of 159% and 151%.

      Advest performed similar analyses with respect to Summit. Advest reviewed
and compared certain financial, operating and stock market performance data of
Summit with 13 publicly traded banks and bank holding companies in the United
States, each with assets between $10 billion and $40 billion as of and for the
twelve months ending June 30, 1999 (the "Summit Peer Companies"). Advest
analyzed the relative performance and value of Summit by comparing certain
publicly available financial data of Summit with that of the Summit Peer
Companies, including ratios of tangible equity to assets, total risk based
capital ratios, return on average assets, return on average equity, market price
to estimated earnings per share in 1999 and 2000 and market price to book value.
The operating data for Summit and the Summit Peer Companies were as of or for
the twelve month period ended June 30, 1999. All stock prices were as of the
market close on October 1, 1999. The analyses yielded the following comparison
of the medians for the Summit Peer Companies with Summit, respectively:

      o Tangible equity to assets ratios of 6.3% and 6.7%;

                                       23
<PAGE>

      o Total risk based capital ratios of 12.4% and 11.8%;

      o Return on average asset ratios of 1.3% and 1.5%;

      o Return on average equity ratios of 19.0% and 17.8%;

      o Market price to estimated earnings per share in 1999 of 14.9x and 11.3x;

      o Market price to estimated earnings per share in 2000 of 13.5x and 10.7x;
        and

      o Market price to book value multiples of 295% and 210%.

      COMPARABLE TRANSACTIONS ANALYSES. Advest reviewed the consideration paid
or proposed to be paid in other transactions in 1998 and 1999 involving banks
and bank holding companies. Specifically, Advest analyzed 44 transactions in the
Connecticut, New York, New Jersey and Pennsylvania region involving banking
companies (the "Regional Transactions") and 92 transactions nationwide with deal
values between $35 and $100 million (the "Comparable Transactions"). In
reviewing the Regional and Comparable Transactions, Advest examined the
multiples of price paid relative to previous twelve-month earnings,
price-to-book value, and the five trading day market premium. These analyses
yielded the following comparison of the medians for the Regional Transactions
with the merger, respectively:

      o Price to earnings for the last twelve months of 26.0 x and 21.3x;

      o Price to book value ratios of 278% and 246%;

      o Price to tangible book value ratios of 285% and 247%; and

      o Price to seller common stock price before announcement of transaction of
        144% and 163%.

      These analyses yielded the following comparison of the medians for the
Comparable Transactions with the merger, respectively:

      o Price to earnings for the last twelve months of 24.6 x and 21.3x;

      o Price to book value ratios of 294% and 246%;

      o Price to tangible book value ratios of 305% and 247%; and

      o Price to seller common stock price before announcement of transaction of
        151% and 163%.

      STOCK TRADING HISTORY. Advest reviewed the performance of the weekly stock
prices and trading volume of the NMBT common stock and Summit common stock
during the period from December 27, 1996 through October 1, 1999. Advest
compared the per share stock price activity of NMBT common stock to the NMBT
Peer Companies and major bank stock indexes and compared the per share market
price activity of Summit common stock to the Summit Peer Companies and the same
major bank stock indexes.

      PRO FORMA MERGER ANALYSES. Advest estimated the impact of the proposed
merger on Summit's projected fully diluted estimated earnings per share for
2000. Advest based its analysis on equity analysts' consensus estimates for
Summit, conversations it conducted with the management of Summit, NMBT
management's projected future earnings for 2000 and conversations it conducted
with NMBT management. Based on this information and the terms of the proposed
merger, Advest concluded that, for Summit, the merger could have an
insignificant dilutive effect (before taking into account various cost savings
and revenue enhancements which could be accomplished upon consolidation of
NMBT's and Summit's operations) on estimated fully diluted earnings per share in
2000. Advest also calculated that the merger could have an insignificant
accretive effect on Summit's earnings per share in 2000 if pre-tax cost savings
and revenue enhancements estimated by NMBT could be achieved. Separately, Advest
also determined that the merger would have an accretive effect on NMBT's
dividend per share of approximately 170%, based on Summit's and NMBT's then
current dividend payments.

      CONTRIBUTION ANALYSIS. Based on Summit's October 1, 1999 market price of
$32.188, NMBT would receive an exchange ratio of .8078 shares for each NMBT
share. NMBT's shareholders would own approximately 1.25% of the pro forma shares
outstanding, while it would contribute 1.13%, 1.07%, 1.32% and 1.07% of pro
forma assets, loans, deposits and equity, respectively. Based on analysts'
consensus earnings estimates for Summit and internal company earnings estimates
for NMBT, NMBT's earnings contribution in 2000 would be 0.88% of pro forma
earnings.

                                       24
<PAGE>

      DIVIDEND DISCOUNT ANALYSIS. Advest performed an analysis to calculate a
range of present values per share of NMBT common stock assuming NMBT continued
to operate as a stand-alone entity. The range was determined by adding (i) the
present value of the estimated future dividend stream that NMBT could generate
over the period beginning October 1, 1999 and ending on December 31, 2003, and
(ii) the present value of the estimated terminal value of NMBT common stock on
December 31, 2003. To determine a projected dividend stream, Advest assumed (i)
an increase in assets of approximately 8% each year from 1999 through 2003; (ii)
an increase in net income of 9% to 17% annually from 1999 through 2003; and
(iii) a dividend payout ratio of 30% each year from 1999 through 2003. The
estimated terminal values were based upon a range of price-to-earnings and
price-to-book value multiples consistent with the range of price-to-earnings and
price-to-book value multiples at which similarly-sized banking institutions
located in the United States have traded in 1998-1999 (12 times to 16 times
previous twelve month earnings per share and 1.6 times to 2.0 times book value
per share) and a range of discount rates of 12% to 15%. Applying the foregoing
multiples, discount rate and assumptions, Advest determined that the fully
diluted value per share of NMBT common stock ranged from approximately $17.46 to
$25.59 based on the price-to-earnings multiple assumptions and $16.19 to $22.31
based on the price-to-book value multiple assumptions.

      In arriving at its opinion, Advest performed a variety of financial
analyses, the material portions of which are summarized above. The summary set
forth above does not purport to be a complete description of the analyses
performed by Advest or of Advest's presentation to NMBT's board of directors.
The preparation of a fairness opinion is a complex analytical process involving
various determinations as to the most appropriate and relevant methods of
financial analyses and the application of those methods to the particular
circumstances and, therefore, a fairness opinion is not necessarily susceptible
to partial analysis or summary description. In arriving at its opinion, Advest
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, Advest believes that its analyses must
be considered as a whole and that selecting portions of the analyses and the
factors considered by it, without considering all the analyses and factors,
could create an incomplete view of the process underlying its analyses set forth
in its opinion. With regard to the Comparable Public Company Analyses and the
Regional and Comparable Transactions Analyses summarized above, Advest selected
comparable public companies on the basis of various factors; however no public
company or transaction utilized as a comparison is identical to NMBT, Summit or
the merger. Accordingly, an analysis of the foregoing is not mathematical;
rather, it involves complex considerations and judgments concerning differences
in financial and operating characteristics of the comparable companies and other
factors that could affect the acquisition or public trading value of the
comparable companies and transactions to which NMBT, Summit and the merger are
being compared.

      Advest's opinion does not imply any conclusion as to the likely trading
range for Summit common stock following consummation of the merger, and does not
address NMBT's underlying business decision to effect the merger. In performing
its analyses, Advest made numerous assumptions with respect to industry
performance, general business, economic, market and financial conditions and
other matters, many of which are beyond the control of NMBT and Summit. Any
estimates contained in such analyses are not necessarily indicative of actual
past or future results or values, which may be significantly more or less than
such estimates. Actual values will depend upon several factors, including
changes in interest rates, dividend rates, market conditions, general economic
conditions and other factors that generally influence the price of securities.

      Advest is a nationally recognized investment banking firm and was selected
by NMBT based on Advest's experience and expertise. Advest regularly engages in
evaluation of bank and bank holding company securities in connection with
acquisitions, negotiated underwritings, secondary distributions of listed and
unlisted securities, private placements and valuations for various other
purposes. In the ordinary course of its business, Advest may effect
transactions, for its own account or for the account of customers, and hold at
any time a long or short position in securities of NMBT or Summit. Advest agreed
to act as financial advisor to NMBT in connection with the merger. NMBT paid
Advest $100,000 upon execution of the merger agreement and $100,000 upon the
rendering of the opinion. NMBT has also agreed to pay Advest, a transaction fee
of 0.80% of the aggregate consideration paid or payable by Summit upon
consummation of the merger, which will be determined as of the closing date. The
$100,000 paid upon execution of the merger agreement and the $100,000 paid upon
rendering the opinion are to be credited against the transaction fee of 0.80% of
the aggregate consideration. NMBT has agreed to reimburse Advest for its
reasonable out-of-pocket expenses, including travel, outside legal fees and
related charges, and to indemnify Advest and related persons against certain
liabilities, including certain liabilities under the federal securities laws,
from and arising out of or based upon Advest's engagement on its behalf.

                                       25
<PAGE>

STOCK OPTION AGREEMENT

      As an inducement and condition to Summit's willingness to enter into the
merger agreement, NMBT entered into the NMBT Corp. Stock Option Agreement dated
as of October 4, 1999 with Summit. The following discussion highlights selected
information from the stock option agreement but may not contain all the
information which is important to you. To understand the stock option agreement
fully you should read carefully the entire document which is included as
Appendix C hereto.

      Pursuant to the stock option agreement, NMBT granted to Summit an
irrevocable option, exercisable under limited and specifically defined
circumstances, none of which, to the best of Summit's and NMBT's knowledge, has
occurred as of the date hereof, to purchase up to 531,043 shares of NMBT common
stock at a price of $18.87 per share.

      If Summit is in breach of any material covenant or obligation contained in
the merger agreement and, if the merger agreement has not been terminated prior
thereto, that breach would entitle NMBT to terminate the merger agreement,
Summit will not be permitted to exercise the option. Otherwise, Summit, as long
as the option has not yet terminated, may exercise the option, in whole or in
part, at any time and from time to time following the occurrence of a Purchase
Event, as defined below. The option will terminate upon the earliest to occur of
certain events, including:

      o the time immediately prior to the effective time of the merger;

      o termination of the merger agreement prior to the occurrence of an
        Extension Event, as defined below, other than a termination by Summit
        resulting from (1) a material breach of the merger agreement by NMBT
        which has not been cured or is not capable of being cured within the
        time allotted, (2) nonsatisfaction of a condition to Summit's obligation
        to close the merger, other than failure to obtain shareholder approval
        of the merger agreement or failure to obtain the fairness opinion of
        Advest, or (3) the NMBT board of directors' failure to recommend, or its
        withdrawal of or modification or change to, or its vote to withdraw,
        modify or change, its recommendation to NMBT shareholders to approve the
        merger agreement; or

      o 12 months after the termination of the merger agreement following the
        occurrence of an Extension Event, as defined below, or the termination
        of the merger agreement by Summit upon (1) a material breach by NMBT
        which has not been cured or is not capable of being cured within the
        time allotted, (2) nonsatisfaction of a condition to Summit's obligation
        to close the merger, other than failure to obtain NMBT shareholder
        approval of the merger agreement or failure to obtain the fairness
        opinion of Advest, or (3) the NMBT board of directors' failure to
        recommend, or its withdrawal or modification or change to, or its vote
        to withdraw, modify or change, its recommendation to NMBT shareholders
        to approve the merger agreement or option agreement.

      The term "Extension Event" shall mean the occurrence of some events
without Summit's prior written consent, including:

      o NMBT, NMBT's board of directors or any of NMBT's subsidiaries taking
        some actions (each an "Acquisition Transaction"), including recommending
        to shareholders the approval of, or entering into an agreement with any
        third party to effect, (1) a merger, consolidation or similar
        transaction involving NMBT or any of its banking subsidiaries, (2) the
        purchase, lease, or other acquisition of ten percent or more of the
        aggregate value of the assets or deposits of NMBT or any of its banking
        subsidiaries, (3) the purchase or other acquisition of securities
        representing ten percent or more of the voting power of NMBT or any of
        its banking subsidiaries or (4) any substantially similar transaction,
        in each case except as otherwise permitted by the merger agreement or
        option agreement;

      o any third party's acquiring beneficial ownership, or the right to
        acquire beneficial ownership, of ten percent or more of the aggregate
        voting power of NMBT or any of its banking subsidiaries;

      o any third party's making a bona fide proposal to NMBT or its
        shareholders, by public announcement or written communication that is or
        becomes publicly disclosed, to engage in an Acquisition Transaction,
        including the commencement of a tender offer or exchange offer to
        purchase ten percent or more of the aggregate voting power of NMBT or
        any of its banking subsidiaries;

                                       26
<PAGE>

      o after a proposal by a third party to NMBT or its shareholders to engage
        in an Acquisition Transaction, NMBT breaches, without curing within the
        time allotted, any representation or covenant in the merger agreement
        which would entitle Summit to terminate the merger agreement;

      o any third party's filing an application with any federal or state bank
        regulatory authority for approval to engage in an Acquisition
        Transaction; or

      o the failure of the NMBT board of directors to call a meeting of NMBT
        shareholders to approve the merger agreement, or the failure to hold or
        cancellation of a shareholders meeting, or the NMBT board of directors
        withdrawal or adverse modification of its unanimous recommendation of
        the merger or a prospective announcement of a withdrawal or modification
        of its unanimous recommendation.

      o any Purchase Event, as defined below, other than that described in the
        2nd bullet below.

      The term "Purchase Event" shall mean any of the following events or
transactions:

      o any person's, other than Summit or a subsidiary of Summit, acquiring
        beneficial ownership of 25 percent or more of the aggregate voting power
        of NMBT or any of its banking subsidiaries, except as otherwise
        permitted by the merger agreement or option agreement;

      o the NMBT shareholders do not approve the merger at the shareholders
        meeting or NMBT's board of directors does not call a shareholder's
        meeting for consideration of the merger or a shareholder's meeting is
        not held or is canceled or if NMBT's board of directors withdraws or
        modifies in a manner adverse to the consummation of the merger its
        recommendation of the merger or has made an advance announcement of a
        withdrawal or modification, in each case after an Extension Event other
        than the Extension Event described in the next to last bullet under the
        definition of Extension Event above; or

      o the occurrence of an Extension Event described in the first bullet under
        the definition of "Extension Event" above, except that the percentage
        referred to in clauses (2) and (3) thereof shall be 25 percent.

      Upon the occurrence of certain events set forth in the stock option
agreement, at the election of Summit, the option, or shares issued pursuant to
the exercise thereof, must be repurchased by NMBT or converted into, or
exchanged for, an option of another corporation or NMBT. In addition, the stock
option agreement grants certain registration rights to Summit with respect to
the shares represented by the option. The terms of these repurchase, substitute
option and registration rights are set forth in the stock option agreement.

      The stock option agreement and option are intended to increase the
likelihood that the merger will be consummated according to the terms set forth
in the merger agreement and may be expected to discourage offers by third
parties to acquire NMBT prior to the merger. To the knowledge of Summit and
NMBT, no event giving rise to the right to exercise the option has occurred as
of the date of this Proxy Statement-Prospectus.

REGULATORY APPROVALS

      The merger is subject to approval by the Federal Reserve Board under the
Bank Holding Company Act of 1956, as amended (the "BHC Act"). The BHC Act
provides that the Federal Reserve Board may not approve any transaction (1) that
would result in a monopoly, or that would be in furtherance of any combination
or conspiracy to monopolize or to attempt to monopolize the business of banking
in any part of the United States, or (2) the effect of which in any section of
the country may be substantially to lessen competition, or to tend to create a
monopoly, or that in any other manner would be in restraint of trade, unless the
Federal Reserve Board finds that the anti-competitive effects of the proposed
transaction are clearly outweighed in the public interest by the probable effect
of the transaction in meeting the convenience and needs of the communities to be
served. In conducting its review of any application for approval, the Federal
Reserve Board is required to consider the financial and managerial resources and
future prospects of the company or companies and the banks concerned, and the
convenience and needs of the communities to be served. Under the BHC Act, as
interpreted by the Federal Reserve Board and the courts, the Federal Reserve
Board may deny any application if it determines that the financial or managerial
resources of the acquiring bank holding company are inadequate. The acquisition
by Summit of 5% or more of NMBT's voting stock is subject to the same
requirement for approval. Summit filed an application for the merger with the
Federal Reserve Board on November 22, 1999.

                                       27
<PAGE>

      The BHC Act provides that a transaction approved by the Federal Reserve
Board may not be consummated for 30 days after the approval is received or, if
certain conditions are met, a shorter period, but, in the absence of an
emergency, not less than 15 calendar days after the date of approval. During
this period, the U.S. Department of Justice may commence legal action
challenging the transaction under the antitrust laws. If, however, the U.S.
Department of Justice does not commence legal action during the specified
waiting period, it may not challenge the transaction thereafter except in an
action commenced under Section 2 of the Sherman Antitrust Act. Satisfactory
financial condition, particularly with regard to capital adequacy, and
satisfactory Community Reinvestment Act ratings generally are prerequisites to
obtaining Federal Reserve Board approval to make acquisitions. All of Summit's
subsidiary banks are currently rated "satisfactory" or better under the
Community Reinvestment Act.

      The acquisition of NMBT by Summit and NMBT Bank by Summit Bank (CT) is
also subject to the approval by the Connecticut Commissioner of Banking under
the Banking Law of Connecticut (the "BLC"). Under the BLC, the Connecticut
Commissioner of Banking, in considering such acquisition, is to consider whether
the acquisition is reasonably expected to produce benefits to the public and
whether such benefits clearly outweigh possible adverse effects, including, but
not limited to, an undue concentration of resources and decreased or unfair
competition. The Connecticut Commissioner of Banking may not approve the
acquisition without considering whether: (i) the investment and lending policies
of NMBT Bank and Summit Bank (CT) prior to the merger and Summit Bank (CT) after
the merger will be consistent with safe and sound banking practices and will
benefit the state; (ii) the services or proposed services of Summit Bank (CT)
after the merger will be consistent with safe and sound banking practices and
will benefit the economy of the state; (iii) the acquisition of NMBT Bank by
Summit Bank (CT) will not substantially lessen competition in the banking
industry in the state and (iv) Summit Bank (CT)and NMBT Bank will have
sufficient capital to ensure and will ensure that Summit Bank (CT) will comply
with applicable minimum capital requirements and will have sufficient managerial
resources to operate Summit Bank (CT) in a safe and sound manner. In addition,
the Connecticut Commissioner of Banking may not approve the acquisition of NMBT
Bank by Summit Bank (CT) (and indirectly by Summit) unless the Commissioner
finds that Summit Bank (CT) and NMBT Bank have a record of compliance with the
Community Reinvestment Act of 1977 and Connecticut community reinvestment and
consumer protection banking laws and that following the acquisition of NMBT Bank
by Summit Bank (CT) (and indirectly by Summit), NMBT Bank will provide adequate
services to meet the banking needs of all community residents, including low
income residents and moderate income residents. An application for approval of
the acquisition of NMBT and NMBT Bank by Summit and Summit Bank (CT),
respectively, was filed with the Connecticut Commissioner of Banking on November
22, 1999.

      The merger of NMBT Bank with Summit Bank (CT) after the initial
acquisition of NMBT by Summit also requires the prior approval of the FDIC under
the federal Bank Merger Act (the "BMA"). The BMA applies competitive, financial,
managerial, community reinvestment and public service standards similar to those
described above with respect to the BHC Act. Summit Bank (CT) and NMBT Bank
filed an application with the FDIC on November 22, 1999.

      NMBT shareholders should be aware that regulatory approvals of the merger
may be based upon different considerations than those that would be important to
shareholders in determining whether or not to approve the merger. Any regulatory
approvals should in no event be construed by a NMBT shareholder as a
recommendation by any regulatory agency with respect to the merger.


                                       28
<PAGE>

INTERESTS OF CERTAIN PERSONS IN THE MERGER

      Directors and executive officers of NMBT have certain interests in the
merger that are different from and in addition to their interests as NMBT
shareholders. These interests are described in more detail below.

INDEMNIFICATION

      In the merger agreement, Summit has agreed to indemnify and to advance
expenses in matters that may be subject to indemnification to persons who served
as directors and officers of NMBT or any subsidiary of NMBT on or before the
effective time of the merger with respect to liabilities and claims, and related
expenses including fees and disbursements of counsel, made against them
resulting from their service as directors or officers prior to the effective
time of the merger. Summit further agreed that this indemnification and
advancement of expenses would be made in accordance with and subject to the
requirements and other provisions of Summit's Restated Certificate of
Incorporation and By-Laws and NMBT's Restated Certificate of Incorporation and
Bylaws or the certificate of incorporation and bylaws of the applicable
subsidiary of NMBT, as in effect on the date the parties signed the merger
agreement and to the extent permitted by law.

      In the merger agreement, Summit also agreed that, subject to NMBT's
covenant to take all action necessary to preserve its rights under its
directors' and officers' liability insurance policies with respect to matters
occurring prior to the effective time of the merger, for a period of six years
after the effective time of the merger, Summit would use its best efforts to
provide, to the persons who served as directors or officers of NMBT or any
subsidiary of NMBT on or before the effective time of the merger, insurance
against liabilities and claims, and related expenses made against them resulting
from their service prior to the effective time of the merger. This insurance
would be comparable in coverage to that provided by Summit to its own directors
and officers, but, if not available on commercially reasonable terms, the
coverage would be substantially similar in all material respects to the
insurance coverage provided to these individuals in these capacities on the date
of the merger agreement. However, in no event is Summit required to expend more
than 200% of the current amount expended by NMBT on an annual basis prior to the
execution of the merger agreement to maintain that coverage. Summit has agreed
to use its best efforts to obtain as much comparable insurance as is available
for the coverage amount if it is unable to maintain or obtain comparable
coverage. NMBT must renew any existing insurance or purchase any "discovery
period" insurance provided for under existing insurance at Summit's request.

BOARD OF DIRECTORS AND OFFICERS OF SUMMIT AND SUMMIT BANK (CONNECTICUT)

      The members of the Summit board of directors and the executive officers of
Summit immediately prior to the effective time of the merger will continue to be
the members of the Summit board of directors and executive officers of Summit at
the effective time of the merger.

      Summit has agreed that upon the merger of NMBT Bank with Summit Bank (CT),
Summit will cause to be elected to the board of directors of the surviving bank
five persons who are then existing members of the NMBT board of directors.

EMPLOYMENT AGREEMENTS

      NMBT has employment agreements with Messrs. Carrigan, Lent and Maher.
Their annual salary for the period ending December 31, 1999 is $170,000,
$133,900 and $113,900, respectively. The employment agreements provide for a
term of one year expiring December 31, 1996, 1999 and 1999, respectively. The
agreements also provide for one-year extensions unless terminated in accordance
with the terms contained therein. Any increases in salary paid during extension
periods are determined at the discretion of the NMBT board of directors.

      Mr. Carrigan's agreement provides for the payment of cash severance equal
to three times his average annual gross income (excluding stock option
exercises) for the previous five years, less one dollar, upon his voluntary
termination for "good reason" (as defined in the agreement) or involuntary
termination other than for "cause" (as defined in the agreement) within twelve
months following a "change of control" (as defined in the agreement). If
employment is terminated for cause or if Mr. Carrigan voluntarily terminates his
employment other than in connection with a change in control, Mr. Carrigan would
be entitled to receive compensation only through the date of termination. If his
employment is terminated for any reason other than for cause, disability, death
or a change in control, then Mr.


                                       29
<PAGE>

Carrigan would be entitled to be paid the greater of (i) his salary for the
months remaining in the term (as defined in the agreement) of employment, (ii)
an amount equal to his current monthly salary multiplied by the number of years
(not to exceed twelve) of his employment, or (iii) his salary for six months.

      The agreements for Messrs. Lent and Maher, while substantially similar in
form to Mr. Carrigan's, provide for the payment of cash severance equal to two
times their average annual gross income (excluding stock option exercises) for
the previous five years, less one dollar, upon their voluntary termination for
good reason (as defined in the agreement) or involuntary termination within
twelve months following a "change of control" (as defined in the agreement).

      The merger will constitute a " change of control" under each of the
above-mentioned agreements. If Messrs. Carrigan, Lent or Maher were to become
entitled to receive payments under their agreements with NMBT, the estimated
amounts of payments, based upon their compensation through December 31, 1999,
would be $610,207 to Mr. Carrigan; $324,894 to Mr. Lent and $273,264 to Mr.
Maher.

      Summit has agreed to assume NMBT's obligations under these employment
agreements and to pay the severance amounts provided for in the agreements upon
the earlier of a termination of the executive's employment with Summit or the
first anniversary of the effective time of the merger if the executive has
remained employed by Summit through that time, subject to the condition that the
executive has remained employed by Summit at Summit's request for up to three
months following the merger of NMBT Bank with Summit Bank (CT) and assisted
Summit in the consolidation of the two banks.

NMBT STOCK OPTION PLANS

      As described under "THE MERGER -- Conversion of NMBT Stock Options," NMBT
stock options outstanding at the effective time of the merger will be
automatically converted into Summit stock options, subject to the terms of the
NMBT option plan and grant agreement governing the NMBT stock options, including
terms and provisions governing exercises. The number of shares covered by a
converted option will be set by multiplying the number of shares covered by the
NMBT option by the exchange ratio. The exercise price per share of converted
option will be equal to the aggregate exercise price that would have been
payable upon exercise in full of the NMBT option divided by the number of shares
of Summit that may be acquired upon exercise of the converted option.

      In addition, the merger agreement provides for two additional revisions to
NMBT options:

      o converted options held by an NMBT employee whose employment with Summit
        is terminated within one year of the effective time of the merger, other
        than for cause, will continue to be exercisable until the later of (1)
        the option exercise termination date provided for in the NMBT option or
        (2) the first anniversary date of the effective date of the merger;
        however, in no case may the converted option be exercised after the
        option expiration date;

      o for 30 days following the effective time of the merger, holders of
        converted options may elect to receive a cash payment instead of
        exercising their option. The cash payment will be equal to the
        difference between the converted option exercise price and the Summit
        Price.

      The following table sets forth certain information relating to NMBT
options held by Michael D. Carrigan, Jay C. Lent and Peter R. Maher, and all
directors and executive officers of NMBT as a group as follows:

      o the number of NMBT options held by such persons;

      o the number of NMBT options held by such persons that are currently
        exercisable;

      o the number of unexercisable NMBT options held by such persons that will
        be converted into Summit options at the effective time of the merger;

      o the weighted average exercise price for currently exercisable NMBT
        options;

      o the weighted average exercise price for unexercisable NMBT options that
        will be converted into Summit options at the effective time of the
        merger; and

      o the aggregate net unrealized value of all NMBT options based on the
        number of shares of Summit common stock covered by, and the exercise
        price of, the Summit options into which the NMBT options are convertible
        and using the last sale price of a share of Summit common stock on
        December __, 1999 of $______ as the market price for purposes of the
        calculation.

                                       30
<PAGE>
<TABLE>
<CAPTION>
                                                                                    WEIGHTED          WEIGHTED
                                                                                     AVERAGE           AVERAGE         AGGREGATE
                                                                     OPTIONS     EXERCISE PRICE   PRICE OF OPTIONS        NET
                                                       OPTIONS         NOT         OF OPTIONS            NOT          UNREALIZED
                                          OPTIONS     CURRENTLY     CURRENTLY       CURRENTLY         CURRENTLY        VALUE OF
                                           HELD      EXERCISABLE   EXERCISABLE     EXERCISABLE       EXERCISABLE        OPTIONS
                                          -------    ----------    ----------     ------------      -------------      ---------
<S>                                       <C>          <C>              <C>          <C>                 <C>
Michael D. Carrigan ....................  120,000      120,000          -            7.7969               -
Jay C. Lent ............................   50,000       50,000          -            5.8750               -
Peter R. Maher . .......................   40,000       40,000          -            6.8438               -

Executive Officers and Directors .......  391,000      391,000          -            11.6519              -
  as a Group (12 Persons total) .......
</TABLE>

STAY BONUSES

      The merger agreement permits NMBT, after the closing date of the merger,
to pay "stay bonuses" of up to $175,000 in the aggregate to employees of NMBT
designated by NMBT, after consultation with Summit, who continue to be employees
of NMBT on such payment date and who execute a release of claims against Summit
and its affiliates.

INCENTIVE PLAN PAYMENTS

      The merger agreement authorizes NMBT to pay NMBT employees up to $242,000
in bonus compensation for services rendered in 1999, in accordance with NMBT's
customary practice.

SEVERANCE PAY PROVISION

      Under the merger agreement, the NMBT severance plan shall remain in effect
following the merger. The NMBT plan generally provides for eligible employees to
receive a payment equal to two weeks base pay multiplied by the employee's years
of service, up to a maximum of 20 weeks base pay.

THE MERGER AGREEMENT

      The following discussion highlights selected information from the merger
agreement but may not contain all of the information that is important to you.
To understand the merger agreement fully you should read carefully the entire
document which is included as Appendix A hereto.

AMENDMENT

      NMBT and Summit may jointly amend the merger agreement at any time.
However, after the special meeting, no amendment may reduce the amount, or
change the form, of consideration to be received by NMBT shareholders unless the
modification is submitted to a vote of NMBT shareholders.

NMBT COVENANTS

      Pursuant to the merger agreement, NMBT has agreed, among other things,
that, until the effective time of the merger or termination of the merger
agreement, NMBT will advise Summit of any material adverse change in NMBT's
business and of certain other circumstances, and the business of NMBT and its
subsidiaries will be carried on substantially in the same manner as prior to the
execution of the merger agreement. Furthermore, until the effective time of the
merger or termination of the merger agreement, without the prior written consent
of Summit, NMBT will not declare or pay any dividend other than a quarterly cash
dividend at a rate equal to the then existing Summit dividend rate multiplied by
0.7024, and will refrain from taking some other actions, including certain
actions relating to changes in its capital stock, the incurrence of liabilities,
the making of certain expenditures, the relinquishment of certain rights, the
amendment of its Restated Certificate of Incorporation and Bylaws and the
issuance of capital stock.

      In order to ensure that NMBT shareholders would be paid no more than one
dividend in each calendar quarter between the date of the merger agreement and
the effective time of the merger, NMBT agreed in the merger agreement to
coordinate with Summit the declaration of any dividends and the setting of any
dividend record or payment dates.

                                       31
<PAGE>


      NMBT also has agreed that, until termination of the merger agreement or
the effective time of the merger, neither NMBT nor any of its subsidiaries nor
any of the officers or directors of NMBT or its subsidiaries shall, and NMBT
shall direct and use its best efforts to cause its employees, agents, affiliates
and representatives (including investment bankers, brokers, financial or
investment advisors, attorneys or accountants retained by NMBT or any of its
subsidiaries) not to, initiate, solicit or encourage, directly or indirectly,
any inquiries, proposals or offers with respect to, or engage in any
negotiations or discussions with any person or provide any non-public
information or authorize or enter into any agreement or agreement in principle
concerning, or recommend, endorse or otherwise facilitate any effort or attempt
to induce or implement any "Acquisition Proposal". The merger agreement defines
"Acquisition Proposal" as any offer, including an exchange offer or tender
offer, or proposal concerning a merger, consolidation, business combination or
takeover transaction involving NMBT or any of its subsidiaries, or the
acquisition of any assets (other than those permitted under the merger
agreement) or any securities of NMBT or any of its subsidiaries. The NMBT board
of directors may furnish or cause to be furnished non-public information
directly or through its representatives concerning an Acquisition Proposal if
the NMBT board of directors, after having consulted with outside counsel and
been advised of its legal rights, has determined that the failure to provide the
non-public information would cause the members of the board of directors to
breach their fiduciary duties under applicable laws, and, provided further, that
NMBT shall first obtain a confidentiality agreement in customary form and
containing at least the confidentiality provisions set forth in the merger
agreement. Further, NMBT agreed to immediately cease any activities,
discussions, or negotiations with any parties conducted prior to execution of
the merger agreement with respect to an Acquisition Proposal. In addition, NMBT
has agreed to notify Summit, by telephone call to its chief executive officer or
general counsel, promptly upon receipt of any communication with respect to an
Acquisition Proposal with another person or receipt of a request for information
from any governmental or regulatory authority with respect to a proposed
acquisition of NMBT or any of its subsidiaries or assets by another party and to
deliver as soon as possible by facsimile transmission to that Summit officer a
copy of any document relating thereto promptly after any such document is
received by NMBT.

      The merger agreement obligates NMBT to disclose to Summit information
regarding environmental conditions affecting (1) any property now or previously
owned, occupied, leased or held or managed in a representative or fiduciary
capacity, (2) any property or facility of which NMBT has at any time
participated in the management or may be deemed to be or to have been an owner
or operator, and (3) any real property in which NMBT holds a security interest
in an amount greater than $50,000. The merger agreement provides Summit with
certain environmental investigative rights prior to the effective time of the
merger with respect to real property owned, leased or operated by NMBT on or
after the date of the merger agreement.

SUMMIT COVENANTS

      Pursuant to the merger agreement, Summit has agreed, among other things,
that, until the effective time of the merger or termination of the merger
agreement, Summit will advise NMBT of any material adverse change in Summit's
business and certain other circumstances.

CONDITIONS TO THE MERGER; TERMINATION

      The obligations of both parties to consummate the merger are subject to
the satisfaction of certain conditions including:

      o Approval of the merger agreement by the requisite vote of the
        shareholders of NMBT;

      o Receipt of all required regulatory approvals by Summit and NMBT without
        restrictions or limitations, that, in the reasonable opinion of Summit,
        would materially adversely affect the financial condition of Summit
        following the consummation of the merger, and the expiration of any
        waiting periods required by such approvals;

      o Continued effectiveness of the registration statement on Form S-4 filed
        by Summit with the Securities and Exchange Commission for the purpose of
        registering the shares of Summit common stock that Summit will issue in
        the merger;

      o The receipt by Summit and NMBT of an opinion from Thompson Coburn as to
        certain federal income tax consequences of the merger;


                                       32
<PAGE>

      o The New York Stock Exchange's indication that the shares of Summit
        common stock to be issued in the merger will be listed on the New York
        Stock Exchange, subject to official notice of issuance;

      o The absence of material litigation;

      o The absence of regulatory agreements relating to the parties;

      o The delivery of officers' certificates by NMBT and Summit; and

      o Other customary conditions described in the merger agreement.

      Any of these conditions may be waived by the party for whose benefit the
condition was included. However, the merger will not be consummated without the
receipt of the requisite shareholder and regulatory approvals.

      Either party may terminate the merger agreement if:

      o NMBT shareholders, in a vote on the merger agreement at the special
        meeting, fail to approve the merger agreement by the required vote;

      o The other party materially breaches a warranty, representation or
        covenant and that breach is not cured or capable of being cured within
        30 days of the giving of written notice thereof, provided that the
        terminating party is not in material breach of any representation,
        warranty, covenant or other agreement;

      o On the designated closing date of the merger all the conditions
        precedent to one party's obligations to close are not met due to the
        other party's material breach; or

      o The merger closing is not consummated on or before the later of (1) July
        1, 2000; provided, however, that a party does not have the termination
        right described by this clause if the failure to close by July 1, 2000
        is due to its material breach or its failure to fulfill a condition to
        the completion of the merger, or, (2) the 45th business day after the
        last to occur of NMBT shareholder approval, receipt of all required
        regulatory approvals or resolution of any legal challenges to the merger
        or a determination by Summit and NMBT to proceed regardless of whether
        the proceeding has been brought to a conclusion (the "Scheduled Date"),
        if the last required event for setting the Scheduled Date has occurred
        on or before August 1, 2000.

      In addition, the parties may terminate the merger agreement at any time by
mutual agreement. Summit's board of directors may terminate the merger agreement
if NMBT's board of directors modifies its recommendation of the merger agreement
or withdraws its recommendation, or if the cost of taking necessary remedial and
other corrective actions and measures associated with certain environmental
matters exceeds $1,000,000 in the aggregate, or that cost is unascertainable but
cannot be reasonably estimated to be less than $1,000,000.

      The merger agreement provides that NMBT's board of directors may terminate
the merger agreement if both of the following circumstances exist:

      o The average of the closing prices of Summit common stock on the New York
        Stock Exchange Composite Transactions List for the ten consecutive full
        trading days ending on the Determination Date, as defined below, (the
        "Summit Price") is less than $26.39, and

      o The amount obtained by dividing the Summit Price by $32.1875 is more
        than 15% less than the amount obtained by dividing the Determination
        Date Index Price by the Starting Date Index Price, as such terms are
        defined below.

      In order to terminate the merger agreement pursuant to this provision,
NMBT must give notice to Summit by 11:59 P.M. on the third business day
following the Determination Date. For purposes of this NMBT right of
termination, the terms referenced above are defined as follows:

      o "Determination Date" means the date which is seven business days prior
        to the Scheduled Date or an earlier date which is not more than ten days
        before the closing date and is specifically designated by Summit in the
        closing notice as the Determination Date.

      o "Index Group" means 14 bank holding companies designated in the merger
        agreement, the common stocks of all of which must be publicly traded and
        as to which there has not been made, since October 1, 1999 and prior to
        the Determination Date, a public announcement of a proposal for such
        company to be acquired or for such company to acquire another company or
        companies in transactions with a value exceeding 25% of the

                                       33
<PAGE>

        acquiror's market capitalization. Any such company or companies which
        does not satisfy any of the foregoing requirements shall be removed from
        the Index Group. Appropriate adjustments shall be made for stock splits,
        stock dividends or similar transactions occurring between October 1,
        1999 and the Determination Date.

      o "Determination Date Index Price" means the average of the closing prices
        of the common stock of the companies comprising the Index Group on the
        New York Stock Exchange Composite Transactions List for the ten
        consecutive full trading days ending on the Determination Date.

      o "Starting Date Index Price" means the average of the closing prices of
        the common stock of the companies comprising the Index Group on the New
        York Stock Exchange Composite Transactions List on October 1, 1999.

The "Determination Date" will not occur until after the special meeting and you
will therefore not know until after that time whether this termination right was
exercisable or exercised.

EXPENSES

      If (1) either party terminates the merger agreement because the other
party has materially breached a warranty, representation or covenant or because
the other party has not met its conditions of closing, or (2) Summit terminates
because NMBT's board of directors modifies its recommendation of the merger
agreement or withdraws its recommendation, or votes to withdraw, modify or
change its recommendation or its intention to make the recommendation, or
because of the environmental contingency referred to above, then the terminating
party shall be reimbursed by the defaulting party for the terminating party's
out-of-pocket expenses reasonably incurred in connection with the merger
agreement, including counsel fees, printing fees and filing fees, but excluding
any brokers', finders' or investment bankers' fees. If the merger agreement is
terminated by either party other than under circumstances described in the
immediately preceding sentence, each party is mutually released and discharged
from liability to the other party or to any third party thereunder, and no party
is liable to any other party for any costs or expenses incurred in connection
with the merger agreement, except that each party is responsible for one-half of
the expenses incurred in connection with the printing of this Proxy
Statement-Prospectus and the Registration Statement and the filing fees with the
Securities and Exchange Commission, the Federal Reserve Board, the Connecticut
Department of Banking and the New York Stock Exchange. Each party has agreed to
indemnify the other for claims for brokerage commissions and finders' fees.

DISSENTERS' RIGHTS

      Pursuant to Section 262 of the DGCL, if you exercise appraisal rights in
connection with the merger, your shares of NMBT will not be converted into the
right to receive shares of Summit common stock but instead will be converted
into the right to receive the "fair value" of your NMBT shares as determined
under the DGCL.

      The following summary of the provisions of section 262 of the DGCL is not
intended to be a complete statement of the provisions and is qualified in its
entirety by reference to the full text of section 262 of the DGCL, a copy of
which is attached hereto as Appendix D and is incorporated herein by reference.

      If the merger is approved by the required vote of NMBT's shareholders, you
must take the following actions to exercise your rights of appraisal:

      o file written notice with NMBT of an intention to exercise rights to
        appraisal of your shares prior to the NMBT special meeting;

      o do not vote in favor of the merger;

      o continuously hold your shares of NMBT through the effective time of the
        merger, and

      o within 20 days after the mailing of notice by Summit of the effective
        time of the merger, make a written demand on Summit for the "fair value"
        of your NMBT common stock, stating the number and class of shares for
        which you are demanding payment.

                                       34
<PAGE>

      If you follow all of the above-stated conditions, the fair value of your
shares of NMBT common stock will be determined by the Delaware Court of
Chancery, exclusive of any element of value arising from the merger. The shares
of NMBT common stock with respect to which holders have perfected their
appraisal demand in accordance with Section 262 and have not effectively
withdrawn or lost such appraisal rights are referred to in this Proxy
Statement-Prospectus as the "dissenting shares".

      Within 10 days after the effective date of the merger, Summit, as the
surviving corporation, must notify each holder of NMBT common stock who has
complied with the conditions set forth above that the merger has become
effective. Within 120 days after the effective date, holders of NMBT common
stock who have complied with the applicable procedures of the DGCL, may file a
petition in the Delaware Court of Chancery for the appraisal of their shares. A
holder may, within 60 days of the effective date of the merger, withdraw his or
her demand for appraisal. Within 120 days of the effective time of the merger,
the holders of dissenting shares are entitled, upon written request, to receive
from Summit a statement setting forth the aggregate number of shares with
respect to which demands for appraisals have been received.

      If you demand the appraisal and purchase of your shares under Section 262
but fail to perfect, or effectively withdraw or lose the right to such purchase,
your shares will be converted into a right to receive shares of Summit common
stock in accordance with the terms of the merger agreement. Dissenting shares
lose their status as dissenting shares if, among other things:

      o the merger is abandoned;

      o you transfer your NMBT shares prior to submission for the required
        endorsement;

      o you fail to make a timely written demand for appraisal;

      o you vote in favor of the merger;

      o neither NMBT nor you file a complaint or intervene in a pending action
        within 120 days after mailing of the approval notice; or

      o you deliver to Summit, as the surviving corporation, a written
        withdrawal of your demand for appraisal of the dissenting shares and
        acceptance of the merger, either within 60 days after the effective date
        of the merger or thereafter with written approval of Summit.

      Failure to follow the steps required by section 262 of the DGCL for
perfecting appraisal rights may result in the loss of appraisal rights, in which
event you will only be entitled to receive the consideration provided for by the
merger agreement. In view of the complexity of the provisions of section 262 of
the DGCL, NMBT shareholders who are considering objecting to the merger should
consult their own legal advisors.

NEW YORK STOCK EXCHANGE LISTING

      Summit has agreed in the merger agreement to use its best efforts to cause
the shares of Summit common stock to be issued to NMBT shareholders in the
merger to be listed on the New York Stock Exchange. The New York Stock
Exchange's indication that the necessary shares of Summit common stock are to be
listed on the New York Stock Exchange, subject to official notice of issuance,
is a condition to the completion of the merger.

ACCOUNTING TREATMENT

      Summit expects to account for the merger under the purchase method of
accounting. Under the purchase method of accounting, the amount by which the
purchase price paid by Summit exceeds the fair value of the net assets acquired
will be treated as goodwill. Intangible assets, including goodwill, recorded in
the transaction will be amortized over a period not to exceed 20 years.

CERTAIN FEDERAL INCOME TAX CONSEQUENCES OF THE MERGER

      The following discussion is based upon an opinion of Thompson Coburn,
special counsel to Summit, and except as otherwise indicated, reflects Thompson
Coburn's opinion. The discussion is a summary of the material United States
federal income tax consequences of the merger to NMBT shareholders and is not a
complete analysis or listing of all potential tax considerations or consequences
relevant to a decision whether to vote for the approval

                                       35
<PAGE>

of the merger agreement. The discussion does not address all aspects of federal
income taxation that may be applicable to NMBT shareholders in light of their
status or personal investment circumstances, nor does it address the federal
income tax consequences of the merger that are applicable to NMBT shareholders
subject to special federal income tax treatment including, without limitation,
foreign persons, insurance companies, tax-exempt entities, retirement plans,
dealers in securities, persons who acquired their NMBT common stock pursuant to
the exercise of employee stock options or otherwise as compensation, and persons
who hold their NMBT common stock as part of a "straddle," "hedge" or "conversion
transaction." In addition, the discussion does not address the effect of any
applicable state, local or foreign tax laws, or the effect of any federal tax
laws other than those pertaining to the federal income tax. As a result, you are
urged to consult with your own tax advisor to determine the specific tax
consequences of the merger to you. The discussion assumes that shares of NMBT
common stock are held as capital assets (within the meaning of Section 1221 of
the Internal Revenue Code) at the effective time of the merger.

      NMBT and Summit have received an opinion from Thompson Coburn, to the
effect that, assuming the merger occurs in accordance with the merger agreement,
the merger will constitute a "reorganization" for federal income tax purposes
under Section 368(a)(1) of the Internal Revenue Code, with the following federal
income tax consequences:

      o You will recognize no gain or loss as a result of the exchange of your
        NMBT common stock solely for shares of Summit common stock pursuant to
        the merger, except with respect to cash received instead of fractional
        shares, if any, as discussed below.

      o The aggregate adjusted tax basis of the shares of Summit common stock
        you receive in the merger, including any fractional share of Summit
        common stock deemed to be received, as described in bullet 4 below, will
        be equal to the aggregate adjusted tax basis of the shares of NMBT
        common stock surrendered.

      o The holding period of the shares of Summit common stock you receive in
        the merger, including any fractional share of Summit common stock deemed
        to be received, as described in bullet 4 below, will include the holding
        period of the shares of NMBT common stock surrendered.

      o If you receive cash instead of a fractional share of Summit common
        stock, you will be treated as if the fractional share had been received
        and then redeemed by Summit in return for the amount of cash that you
        received. You will recognize capital gain or loss equal to the
        difference between the amount of cash received and the portion of your
        adjusted tax basis in the shares of Summit common stock allocable to the
        fractional share.

      The opinion of Thompson Coburn is subject to the conditions and customary
assumptions that are stated in the opinion, and relies upon various
representations made by Summit and NMBT. If any of these representations or
assumptions is inaccurate, the tax consequences of the merger could differ from
those described in this section. The opinion of Thompson Coburn is also based
upon the Internal Revenue Code, regulations proposed or promulgated thereunder,
judicial precedent, and current administrative rulings and practice, all of
which are subject to change. Any such change, which may or may not be
retroactive, could alter the tax consequences discussed in this section. The
receipt of the opinion of Thompson Coburn again as of the closing date of the
merger is a condition to the completion of the merger. An opinion of counsel,
unlike a private letter ruling from the Internal Revenue Service, has no binding
effect. The Internal Revenue Service could take a position contrary to the
opinion of Thompson Coburn and, if the matter were litigated, a court may reach
a decision contrary to the opinion. Neither Summit nor NMBT has requested an
advance ruling as to the federal income tax consequences of the merger, and the
Internal Revenue Service is not expected to issue such a ruling.

      THE FOREGOING IS A SUMMARY OF THE MATERIAL FEDERAL INCOME TAX CONSEQUENCES
OF THE MERGER TO CERTAIN NMBT SHAREHOLDERS AND DOES NOT TAKE INTO ACCOUNT THE
PARTICULAR FACTS AND CIRCUMSTANCES OF EACH NMBT SHAREHOLDER'S TAX STATUS AND
ATTRIBUTES. AS A RESULT, THE FEDERAL INCOME TAX CONSEQUENCES ADDRESSED IN THIS
DISCUSSION MAY NOT APPLY TO YOU. ACCORDINGLY, YOU SHOULD CONSULT WITH YOUR OWN
TAX ADVISOR REGARDING THE SPECIFIC TAX CONSEQUENCES OF THE MERGER, INCLUDING THE
APPLICATION AND EFFECT OF FEDERAL, STATE, LOCAL AND OTHER TAX LAWS AND THE
POSSIBLE EFFECTS OF CHANGES IN FEDERAL AND OTHER TAX LAWS.

                                       36
<PAGE>



RESALE OF SUMMIT COMMON

      The shares of Summit common stock into which your shares of NMBT common
stock are converted at the effective time of the merger will be freely
transferable under the Securities Act of 1933 as amended, unless you are deemed
to be an "affiliate" of NMBT for purposes of Rule 145 under the Securities Act
as of the date of the special meeting. Affiliates of NMBT may not sell their
shares of Summit common stock acquired in connection with the merger except
pursuant to an effective registration statement under the Securities Act
covering the resale of those shares, or in compliance with Rule 145 under the
Securities Act or another applicable exemption from the registration
requirements of the Securities Act. Persons who may be deemed to be affiliates
of NMBT generally include individuals or entities that control, are controlled
by or are under common control with NMBT and may include executive officers and
directors of NMBT as well as principal shareholders of NMBT.

      NMBT agreed in the merger agreement to use its best efforts to cause each
director, executive officer and other person deemed in the opinion of NMBT's
counsel to be affiliates of NMBT to enter into an agreement with Summit
providing that such persons agree to be bound by the restrictions of Rule 145.

DIFFERENCES IN SHAREHOLDERS RIGHTS

      Summit is incorporated in the State of New Jersey and NMBT is incorporated
in the state of Delaware. If the merger is consummated, holders of NMBT common
stock will become holders of Summit common stock, and the rights of former NMBT
shareholders will be governed by the NJBCA and Summit's Restated Certificate of
Incorporation and By-Laws. The rights of NMBT stockholders under the DGCL and
NMBT's Restated Certificate of Incorporation and By-Laws differ in certain
significant respects from the rights of Summit shareholders under The NJBCA and
Summit's Restated Certificate of Incorporation and By-Laws. These differences
are summarized in the table below.


CAPITAL STOCK:
- --------------

SUMMIT SHAREHOLDER RIGHTS
Summit's Restated Certificate of Incorporation authorizes the issuance of
390,000,000 shares of common stock and 6,000,000 shares of preferred stock, no
par value. As of September 30, 1999, there were approximately 177,510,389 shares
of Summit common stock outstanding and 2,744,256 shares of Summit common stock
held in treasury and 2,000,000 shares of Summit Series S preferred stock
reserved for issuance under Summit's shareholder rights plan. Summit's Restated
Certificate of Incorporation and the NJBCA authorize Summit's board of directors
to amend Summit's Restated Certificate of Incorporation without shareholder
concurrence to divide the authorized shares of preferred stock into series, to
determine the designations and the number of shares of any series, and to
determine the relative voting, dividend, conversion, redemption, liquidation and
other rights, preferences and limitations of the authorized shares of preferred
stock.

NMBT SHAREHOLDER RIGHTS
NMBT's Restated Certificate of Incorporation authorizes the issuance of
8,000,000 shares of common stock and 2,000,000 shares of preferred stock, par
value $.01 per share. NMBT's board of directors has the power to set the rights,
preferences, privileges and designations with respect to each class or series of
preferred stock and to issue preferred stock without shareholder approval. As of
September 30, 1999, there were 2,668,558 shares of NMBT common stock outstanding
and no shares of NMBT preferred stock outstanding.


NUMBER OF DIRECTORS:
- --------------------

SUMMIT SHAREHOLDER RIGHTS
Summit's Restated Certificate of Incorporation provides that Summit's board of
directors shall consist of not less than five and not more than forty persons.

NMBT SHAREHOLDER RIGHTS
NMBT's Restated Certificate of Incorporation and Bylaws provide that NMBT's
board of directors shall consist of not less than five nor more than twelve
directors.

                                       37
<PAGE>


ELECTION OF DIRECTORS AND CLASSIFIED BOARD OF DIRECTORS:
- --------------------------------------------------------

SUMMIT SHAREHOLDER RIGHTS
Summit's Restated Certificate of Incorporation divides Summit's board of
directors into three classes, with each class of directors serving a staggered
term of three years. Each class of directors must consist, as nearly as
possible, of one-third of the number of directors constituting the entire Summit
board of directors. Directors are elected by receiving the highest number of
votes cast by shares entitled to vote, even if not a majority. Presently there
are seven directors in Class I, six directors in Class II and six directors in
Class III.

Summit's Restated Certificate of Incorporation further requires that resolutions
increasing the number of directors be approved by (i) 80% of directors holding
office or (ii) 80% of the shares of capital stock of Summit entitled to vote
generally in the election of directors, voting as a single class.

Summit's Restated Certificate of Incorporation also provides that the
affirmative vote of the holders of 80% or more of the combined voting shares of
Summit, voting as a single class, is required to amend, repeal or take any
action inconsistent with the classified board of directors or the requirement
for an 80% affirmative vote to approve any increase in the number of directors.
The effect of the classified board and related provisions is to make it
difficult for persons other than those negotiating directly with Summit's board
of directors to acquire seats on Summit's board of directors and obtain control
of Summit.


NMBT SHAREHOLDER RIGHTS
NMBT's Restated Certificate of Incorporation divides NMBT's board of directors
into three classes, with each class serving a term of three years. Directors are
elected by receiving the highest number of votes cast, even if not a majority.
Presently there are nine directors of NMBT.


REMOVAL OF DIRECTORS
- --------------------

SUMMIT SHAREHOLDER RIGHTS
Summit's Restated Certificate of Incorporation contains no specific provisions
with respect to removal of directors, other than for directors elected by
preferred shareholders. Under the NJBCA directors on a classified board may only
be removed by shareholders for cause, by the affirmative vote of the majority of
voting shareholders.

NMBT SHAREHOLDER RIGHTS
Under NMBT's Restated Certificate of Incorporation, a director may be removed
for cause by the affirmative vote of 75% of the entire board of directors
(assuming no vacancies) or by the affirmative vote of 75% of the outstanding
shares other than certain 10% shareholders, if any. NMBT directors may be
removed without cause only by the affirmative vote of 75% of the entire board of
directors (assuming no vacancies).

SHAREHOLDERS RIGHTS PLAN
- ------------------------
SUMMIT SHAREHOLDER RIGHTS
Summit has in effect a shareholder rights plan which provides that holders of
shares of Summit common stock possess one preferred stock purchase right for
each share of


                                       38
<PAGE>
REMOVAL OF DIRECTORS
- --------------------

Summit common stock held by them. Each preferred stock purchase right entitles
the holder to buy, as of the close of business on the tenth day following the
occurrence of certain takeover-related events, one one-hundredth (1/100) of a
share of a series of preferred stock, designated the Series S preferred stock,
at $164 per one one-hundredth share. Each full share of the Series S preferred
stock has rights per share equal to 100 times the rights of Summit common stock
with respect to voting, dividends and distributions upon liquidation or merger,
and entitles the holder to an additional preferential dividend.

Upon the occurrence of certain events, holders of the preferred stock purchase
rights become entitled to purchase either shares of the Series S preferred stock
or, if the right was not previously exercised, a number of shares of the
acquiring person equal in market value to approximately twice the exercise price
of the new preferred stock purchase right. Summit's board of directors has the
power to redeem the new preferred stock purchase rights at any time prior to the
close of business on the tenth day after a public announcement that a person or
group has acquired beneficial ownership of 15% or more of Summit's voting stock,
upon the majority vote of the board of directors. In addition, the Summit board
of directors may exchange the stock purchase rights for shares of Summit common
stock under certain circumstances.

NMBT SHAREHOLDER RIGHTS
NMBT has not adopted a shareholders rights plan.


NOMINATIONS TO THE BOARD, SHAREHOLDER PROPOSALS AND CONDUCT OF MEETING:
- -----------------------------------------------------------------------
SUMMIT SHAREHOLDER RIGHTS
Summit's By-Laws contain provisions that:
o  Establish rules governing nominations for director and shareholder
   proposals made at meetings of shareholders and, in general, authorize the
   chairman of an annual meeting to determine whether nominations and
   shareholder proposals have been made at least 80 days in advance of the
   anniversary of the preceding year's annual meeting or otherwise comply with
   the requirements of the By-Laws, and

o  Establish rules governing nominations for directors made at special
   meetings of shareholders and authorize the chairman of a special meeting to
   determine whether nominations have been made at least 70 days prior to the
   special meeting or the tenth day following the day on which public
   announcement of the special meeting is first made or otherwise comply with
   the requirements of the By-Laws.

NMBT SHAREHOLDER RIGHTS
NMBT's Bylaws provide that any shareholder wishing to nominate a candidate for
election to NMBT's board of directors must give written notice of the nomination
delivered to the Secretary of NMBT not less than 60 days nor more than 90 days
prior to the meeting. However, if less than 30 days notice or prior public
disclosure of the meeting is given or made to shareholders, the notice from the
shareholder, to be timely, must be received no later than the seventh day
following NMBT's notice or public disclosure.

                                       39
<PAGE>
SHAREHOLDER MEETINGS
- --------------------

SUMMIT SHAREHOLDER RIGHTS
Under Summit's By-Laws, except as otherwise provided by law, special meetings
may be called only by the Chairman, Vice Chairman, President or majority of the
entire Summit board of directors. In addition, under the NJBCA holders of not
less than 10% of a corporation's voting stock may apply to the New Jersey
Superior Court for an order directing a special meeting of shareholders to be
held.

NMBT SHAREHOLDER RIGHTS
The DGCL provides that a special meeting may be called by the board of
directors or by such person or persons as are authorized by the certificate of
incorporation or bylaws. NMBT's Restated Certificate of Incorporation provides
that a special meeting of shareholders may be called only by a majority of
NMBT's board of directors unless otherwise required by law.



STOCKHOLDER ACTION BY WRITTEN CONSENT:
- --------------------------------------

SUMMIT SHAREHOLDER RIGHTS
Summit's Restated Certificate of Incorporation requires that, subject to the
rights of holders of any series of Summit's preferred stock or other class or
series of stock having preference over the Summit common stock as to dividends
or upon liquidation, all actions by the shareholders of Summit must be taken
exclusively at a duly called annual or special meeting of Summit's shareholders
or with the board of directors' approval by the unanimous, but not less than
unanimous, written consent of the shareholders.

NMBT SHAREHOLDER RIGHTS
NMBT's Restated Certificate of Incorporation prohibits shareholder action by
written consent.


VOTE REQUIRED FOR CHARTER AND BY-LAW AMENDMENTS:
- ------------------------------------------------

SUMMIT SHAREHOLDER RIGHTS
Summit's Restated Certificate of Incorporation requires that certain provisions
relating to increases in the number of directors, which number may also be
increased by the board of directors, changes to the classified board provision
and changes to the provision requiring that actions by shareholders be effected
at an annual or special meeting or by unanimous written consent, receive the
affirmative vote of holders of 80% of the combined voting shares of Summit,
voting as a single class. Otherwise, pursuant to the NJBCA, Summit's Restated
Certificate of Incorporation may be amended, in general, after board approval,
by the affirmative vote of a majority of the votes cast.

Under NJBCA, the power to adopt, amend and repeal by-laws of a corporation is
vested in the board of directors unless such power is reserved to the
shareholders in the certificate of incorporation. However, any by-laws made by
the board of directors may be amended and repealed and new by-laws adopted by
the


                                       40
<PAGE>
shareholders and the shareholders may prescribe in the by-laws that the
board may not amend or repeal by-laws approved by shareholders. Summit's By-Laws
provide for amendments upon two-thirds vote of the board of directors.


NMBT SHAREHOLDER RIGHTS
Under the DGCL, unless the certificate of incorporation requires a greater vote,
a proposed amendment to a corporation's certificate of incorporation may be
approved by a majority of the outstanding shares entitled to vote on the
proposed amendment. Under NMBT's Restated Certificate of Incorporation, certain
amendments require the approval of two-thirds of the outstanding shares entitled
to vote in the election of directors and a majority of shares held by
shareholders holding less than ten percent of the company's stock. These include
the following:

o amendments relating to indemnification;

o amendments relating to authorized NMBT powers and its board of directors;

o amendments relating to meetings of shareholders;

o amendments relating to stock repurchase from certain 10% shareholders;

o amendment provisions.

In addition, the provisions relating to business combinations may not be amended
without the approval of 80% of the voting shares and a majority of stockholders
holding less than ten percent of the NMBT common stock unless recommended by
two-thirds of the NMBT board of directors and a majority of directors continuing
in office, in which case a majority of less than 10% shareholders is required.

NMBT's Restated Certificate of Incorporation gives the power to amend its bylaws
to the NMBT board of directors, subject to the right of shareholders to adopt,
amend or repeal bylaws made by the board of directors.

NMBT's Bylaws provide for amendments by two-thirds vote of the NMBT board of
directors or majority vote of shareholders except for amendments relating to the
following provisions, which require the affirmative vote of two-thirds of the
shareholders, other than 10% shareholders, if any:

o special meetings;

o number of directors, term of office and qualifications;

o shareholder nominations of directors; o removal of directors; and

o amendment provisions.



SUPERMAJORITY VOTE ON CERTAIN TRANSACTIONS
- ------------------------------------------

SUMMIT SHAREHOLDER RIGHTS
With the exception of a sale of all of Summit's property in the entirety,
Summit's Restated Certificate of Incorporation does not contain any
supermajority voting provisions with respect to mergers or similar change of
control transactions.

NMBT SHAREHOLDER RIGHTS
Under NMBT's Restated Certificate of Incorporation, the affirmative vote of
two-thirds of all voting shares is necessary to engage in any transaction, the
effect of which is to combine the corporation's assets and business with that of
another corporation that is the beneficial owner of 5% or more of the
outstanding shares of NMBT stock eligible to vote in the election of the board
of directors. The majority vote of the shareholders other than the 5% holder is
also required. Two-thirds shareholder approval is not necessary, however, if the
combination is approved by two-thirds of the board of directors prior to the
time the other corporation became a beneficial owner of 5% or more of the shares
of NMBT stock eligible to vote in the election of the board of directors.


                                       41
<PAGE>

Under NMBT's Restated Certificate of Incorporation, the affirmative vote of 80%
of all voting shares is necessary to engage in any transaction, the effect of
which is to combine the corporation's assets and business with that of another
corporation that is the beneficial owner of 5% or more of the outstanding shares
of NMBT stock eligible to vote in the election of the board of directors. The
majority vote of all shares other than those held by the 5% shareholder is also
required. Eighty percent shareholder approval is not necessary, however, if (a)
the combination is approved by a majority of the board of directors prior to the
time the other corporation became a beneficial owner of 5% or more of the shares
of NMBT stock eligible to vote in the election of the board of directors, or (b)
the terms of the transaction meet certain "fair price" and procedural
requirements.


INDEMNIFICATION; LIMITATION OF LIABILITY
- ----------------------------------------

SUMMIT SHAREHOLDER RIGHTS
Under the NJBCA, a corporation may indemnify any person who is or was a
director, officer, trustee, employee or agent of the corporation, or is or was
serving at the request of the corporation as a director, officer, trustee,
employee or agent of another corporation, partnership, joint venture, sole
proprietorship, trust or other enterprise, against his or her reasonable
expenses, including counsel fees, in connection with any pending, threatened or
completed proceeding by or in the right of the corporation to procure a judgment
in its favor which involves the person by reason of his or her corporate agent
status, if he or she acted in good faith and in a manner he or she reasonably
believed to be in or not opposed to the best interests of the corporation.
However, a corporation may not indemnify a person who has been adjudged to be
liable to the corporation, unless, and only to the extent that the Superior
Court of New Jersey or the court in which the proceeding was brought determines
that, despite the adjudication of liability but in view of all the circumstances
of the case, the person is fairly and reasonably entitled to indemnity for those
expenses that the court shall deem proper. In connection with any other
proceeding, a corporation may indemnify the person against his or her reasonable
expenses and liabilities in connection with any such

                                       42
<PAGE>
proceeding if he or she acted in good faith and in a manner he or she reasonably
believed to be in or not opposed to the best interests of the corporation, and,
with respect to any criminal proceeding, he or she had no reasonable cause to
believe his or her conduct was unlawful. The NJBCA requires that a corporation
indemnify these persons against expenses to the extent the person has been
successful on the merits or otherwise in any of the foregoing proceedings or in
the defense of any claim, issue or matter and provides that a court may order
such indemnification. Summit's By-Laws provide that corporate agents, which term
includes directors, officers and employees, of Summit shall be indemnified and
held harmless by Summit to the fullest extent authorized by the laws of the
State of New Jersey against expenses and liabilities arising in connection with
actions performed by the corporate agent on behalf of Summit. Summit's By-Laws
permit it to maintain insurance for corporate agents against liabilities and
expenses.

The NJBCA further provides that the certificate or incorporation may contain
provisions which limit the personal liability of directors and officers, in
whole or in part, to the corporation or its shareholders for damages for breach
of any duty owed to the corporation or its shareholders, except for acts or
omissions:

o in breach of the director's or officer's duty of loyalty to the corporation
  or its shareholders,

o not in good faith or involving a knowing violation of law, or

o resulting in receipt by the person of an improper personal benefit.

Summit's Restated Certificate of Incorporation contains a provision of this
nature.

With respect to the foregoing provisions, the NJBCA provides that the duty of
loyalty is breached by an act or omission known or believed by a director or
officer to be contrary to the best interests of the corporation or its
shareholders in connection with matters in which the director or officer has a
material conflict of interest.


NMBT SHAREHOLDER RIGHTS
The DGCL generally permits a corporation to indemnify its directors and officers
against expenses, judgments, fines and amounts paid in settlement actually and
reasonably incurred in connection with a third-party action, other than a
derivative action, and against expenses actually and reasonably incurred in the
defense or settlement of a derivative action, provided that there is a
determination that the individual acted in good faith and in a manner reasonably
believed to be in or not opposed to the best interests of the corporation. Such
determination shall be made, in the case of an individual who is a director or
officer at the time of such determination:

  o by a majority of the disinterested directors, even though less than a
    quorum;

  o by a committee of such directors designated by a majority vote of such
    directors, even though less than a quorum;

  o by independent legal counsel, regardless of whether a quorum of
    disinterested directors exists; or

  o by a majority vote of the shareholders, at a meeting at which a quorum is
    present.

Without court approval, however, no indemnification may be made in respect of
any derivative action in which such individual is adjudged liable to the
corporation.

The DGCL requires indemnification of directors and officers for expenses
relating to a successful defense on the merits or otherwise of a derivative or
third-party action.

NMBT's Restated Certificate of Incorporation provides that NMBT shall have the
power of indemnification provided under the DGCL.

The DGCL provides that a corporation's certificate of incorporation may include
a provision limiting the personal liability of a director to the corporation or
its shareholders for monetary damages for breach of fiduciary duty as a
director. However, no such provision can eliminate or limit the liability of a
director for:

o any breach of the director's duty of loyalty to the corporation or its
  shareholders;

o acts or omissions not in good faith or that involve intentional misconduct or
  a knowing violation of the law; o violation of certain provisions of the DGCL;

o any transaction from which the director derived an improper personal benefit;
  or

o any act or omission prior to the adoption of such a provision in the
  certificate of incorporation.

NMBT's Restated Certificate of Incorporation provides that the directors of NMBT
shall not be personally liable to the extent allowed by the DGCL to an amount
that is less than or equal to the amount of compensation received by the
director during the year of the breach.


                                       43
<PAGE>
DISSENTERS RIGHTS:
- ------------------

SUMMIT SHAREHOLDER RIGHTS
Under the NJBCA, unless the certificate of incorporation otherwise provides, a
dissenting shareholder of a New Jersey corporation that is a party to a
consolidation, or that is not the surviving corporation in a merger, or that is
the surviving corporation in a merger requiring shareholder approval, has
appraisal rights with respect to any shares other than:

o shares listed on a national securities exchange or held of record by not
  less that 1,000 holders;

o shares in exchange for which, pursuant to the plan of merger or consolidation,
  the shareholder will receive cash and/or securities which will be listed on a
  national securities exchange or held of record by not less than 1,000 holders.

Summit's Restated Certificate of Incorporation contains nothing which provides
otherwise.

Under the NJBCA, unless the certificate of incorporation provides otherwise, a
dissenting shareholder in a New Jersey corporation has appraisal rights in the
case of any sale, lease, exchange or other disposition of all or substantially
all of the assets of the corporation not in the usual or regular course of
business as conducted by the corporation except with respect to (1) shares
listed on a national securities exchange or held of record by not less than
1,000 holders, (2) a transaction pursuant to a plan of dissolution of the
corporation which provides for the distribution of substantially all of its net
assets to shareholders according to their interests within one year, where the
transaction is wholly for cash and/or securities which will be listed on a
national securities exchange or held of record by not less than 1,000 holders,
or (3) a sale pursuant to court order. This rule does not apply to certain
transfers of assets of a wholly owned subsidiary caused by its parent
corporation.


NMBT SHAREHOLDER RIGHTS
Under the DGCL, shareholders of a constituent corporation in a merger or
consolidation have the right to demand and receive payment of the fair value of
their stock in a merger or consolidation. However, except as otherwise provided
by the DGCL, shareholders do not have appraisal rights in a merger or
consolidation if, among other things, their shares are:

o listed on a national securities exchange or designated as a national market
  system security on an inter-dealer quotation system by the National
  Association of Securities Dealers, Inc.; or

o held of record by more than 2,000 shareholders;

  and, in each case, the consideration such shareholders receive for their
  shares in a merger or consolidation consists solely of:

o shares of stock of the corporation surviving or resulting from such merger or
  consolidation;

o shares of stock of any other corporation that at the effective date of the
  merger or consolidation will be either listed on a national securities
  exchange, or designated as a national market system security on an
  inter-dealer quotation system by the NASD or held of record by more than 2,000
  shareholders;

o cash in lieu of fractional shares of the corporations described in the two
  immediately preceding bullet points; or

o any combination of shares of stock and cash in lieu of fractional shares
  described in the three immediately preceding bullet points.

The DGCL does not provide for appraisal rights in connection with dispositions
  of assets unless the corporation's certificate of incorporation provides
  otherwise. NMBT's Restated Certificate of Incorporation does not provide for
  appraisal rights in these circumstances.


CLASS VOTING ON MERGER AND CONSOLIDATION
- ----------------------------------------

SUMMIT SHAREHOLDER RIGHTS
Under the NJBCA, any class or series of shares shall be entitled to vote as a
class if the plan of merger or consolidation contains any provisions that, if
contained in a


                                       44
<PAGE>
proposed charter amendment, would entitle the class or series to vote as a class
on the amendment.

NMBT SHAREHOLDER RIGHTS
The DGCL provides that any class or series of shares shall be entitled to vote
as a class or series upon a proposed amendment to the certificate of
incorporation, whether pursuant to a plan of merger or consolidation or
otherwise, if such amendments make certain changes to the class or series that
adversely affect the rights of the holders of shares of that class or series.


SHAREHOLDER APPROVALS OF MERGERS AND CONSOLIDATION
- --------------------------------------------------
SUMMIT SHAREHOLDER RIGHTS
While shareholder approval of a merger or consolidation is generally required
under both the NJBCA and the DGCL, the NJBCA provides that, unless otherwise
provided in the corporation's certificate of incorporation, approval of the
shareholders of a surviving corporation in a merger is not required if (1) the
plan of merger does not make an amendment of the certificate of incorporation of
the surviving corporation that would otherwise require shareholder approval, (2)
the shares outstanding immediately before the effectiveness of the merger are
not changed by the merger, and (3) the number of voting or participating shares
outstanding after the merger, after giving effect to the merger, including
shares issuable upon conversion of other securities or upon exercise of rights
or warrants issued pursuant to the merger, will not exceed by more than 40% the
number of voting and participating shares, as the case may be, of the surviving
corporation outstanding immediately prior to the merger.

Under the NJBCA, unless otherwise provided in the corporation's certificate or
articles of incorporation, a merger requiring shareholder approval must be
approved by the majority of the votes cast by shareholders entitled to vote on
the merger.

The NJBCA requires the approval of two-thirds of the voting stock of a
corporation not beneficially owned by an "interested shareholder" for some
business combinations between the corporation and the interested shareholder.


NMBT SHAREHOLDER RIGHTS
The DGCL has a similar provision but the percentage threshold is 20% rather than
40% and is with reference to common stock rather than voting or participating
stock.

Under the DGCL, unless otherwise provided in the corporation's certificate of
incorporation, a merger requiring shareholder approval must be approved by a
majority of the outstanding shares entitled to vote on the merger.


SHAREHOLDER APPROVAL OF ASSET SALES
- -----------------------------------
SUMMIT SHAREHOLDER RIGHTS
Under the NJBCA, a sale of all or substantially all of a corporation's assets
outside the regular course of business requires the approval of the board of
directors and the affirmative vote of a majority of the votes cast by
shareholders entitled to vote on the question. Summit's Restated Certificate of
Incorporation provides


                                       45
<PAGE>
that Summit's board of directors may sell all the rights, franchises and
property of Summit as an entirety with the approval of two-thirds of the
outstanding shares.

NMBT SHAREHOLDER RIGHTS
The DGCL also requires board and shareholder approval for a sale of
substantially all of a corporation's assets, with a majority of the outstanding
shares entitled to vote required to approve the sale.

PROHIBITION ON PAYMENT OF GREENMAIL
- -----------------------------------
SUMMIT SHAREHOLDERS RIGHTS
Summit's Restated Certificate of Incorporation does not contain a "greenmail"
provision.

NMBT SHAREHOLDER RIGHTS
NMBT's Restated Certificate of Incorporation requires, under certain
circumstances, the affirmative vote of holders of not less than a majority of
the outstanding shares of capital stock, voting together as a class, but
excluding any stock owned by a holder, directly or indirectly, of 3% or more of
the class of the securities to be acquired, before it may, directly or
indirectly, purchase any of its equity securities from a holder, directly or
indirectly, of 3% or more of the class of the securities to be acquired who has
beneficially owned such security less than two years prior to the date of the
purchase. No such vote is required, however, if NMBT makes a transfer or
exchange offer to a holder, directly or indirectly, of 3% or more of the class
of the securities to be acquired and to all other shareholders on the same terms
and conditions and in compliance with the federal securities laws. Summit's
Restated Certificate of Incorporation does not contain a similar provision.


DE FACTO MERGER
- ---------------
SUMMIT SHAREHOLDERS RIGHTS
Under the NJBCA, shareholders have the same voting and dissenters rights as if
they were shareholders of a surviving corporation in a merger, if (1) voting
shares outstanding or issuable after the transaction exceed by more than 40% of
the voting shares outstanding before the transaction or (2) shares entitled to
participate without limitation in distributions outstanding or issuable after
the transaction exceed by more than 40% the shares outstanding before the
transaction.

NMBT SHAREHOLDER RIGHTS
The DGCL does not contain a comparable provision.



SHAREHOLDERS DERIVATIVE ACTIONS
- -------------------------------
SUMMIT SHAREHOLDERS RIGHTS
The NJBCA contains certain provisions that have the effect of discouraging
derivative actions. Specifically, the NJBCA authorizes the court having
jurisdiction over the action to award reasonable expenses and attorney's fees to
the successful defendants in a derivative action upon a finding that the action
was brought without reasonable cause. In addition, the corporation may require
the

                                       46
<PAGE>

plaintiff or plaintiffs to give security for the reasonable expenses,
including attorneys' fees, that may be incurred by the corporation or by other
named defendants for which the corporation may become legally liable if
plaintiff or plaintiffs are holders of less than 5% of the outstanding shares of
any class or series of such corporation, or voting trust certificates for any
series or class, unless the shares or trust certificates so held have a market
value in excess of $25,000.

NMBT SHAREHOLDER RIGHTS
DGCL does not contain a comparable provision.

SOURCE OF DIVIDENDS
- -------------------
SUMMIT SHAREHOLDER RIGHTS
Under the NJBCA, dividends may not be paid if, after giving effect to the
dividend, either (1) the corporation would be unable to pay its debts as they
become due in the ordinary course of its business or (2) the corporation's total
assets would be less than its total liabilities.

NMBT SHAREHOLDER RIGHTS
The DGCL generally provides that a corporation, subject to any restrictions
contained in its certificate of incorporation, may declare and pay dividends out
of surplus or, when no surplus exists, out of net profits for the fiscal year in
which the dividend is declared and/or the preceding fiscal year. Dividends may
not be paid out of net profits if the capital of the corporation is less than
the amount of capital represented by the issued and outstanding stock of all
classes having a preference upon the distribution of assets.

INSPECTION OF BOOKS AND RECORDS
- -------------------------------
SUMMIT SHAREHOLDER RIGHTS
Under the NJBCA, a shareholder of record for at least 6 months immediately
preceding his demand, or any holder, or a person authorized on behalf of a
holder, of at least 5% of the outstanding shares of any class or series shall
have the right to examine for any proper purpose the minutes of the proceedings
of shareholders and record of shareholders. Furthermore, upon establishing a
proper purpose and receiving a court order a shareholder may examine the books
and records of account, minutes and records of shareholders of a corporation.

The NJBCA provides for shareholder rights to inspect a shareholder list
at a shareholders' meeting similar to those provided by the DGCL.

NMBT SHAREHOLDER RIGHTS
Under the DGCL, any shareholder may inspect the company's stock ledger, a list
of its shareholders and its other books and records for any proper purpose
reasonably related to such person's interest as a shareholder. A list of
shareholders is to be open to the examination of any shareholder, for any
purpose germane to a meeting of shareholders, during ordinary business hours,
for a period of at least 10 days prior to such meeting. The list is also to be
produced and kept at the place of the meeting during the entire meeting, and may
be inspected by any shareholder who is present.

ANTI-TAKEOVER STATUTES
- ----------------------
SUMMIT SHAREHOLDER RIGHTS
New Jersey has adopted a type of anti-takeover statute known as a "business
combination" statute. Subject to numerous qualifications and exceptions, the
statute prohibits an interested stockholder of a corporation from effecting a
business combination with the corporation for a period of five years after the
person becomes an interested stockholder unless specified conditions are
satisfied. The conditions are


                                       47
<PAGE>
that the corporation's board shall have approved the transaction prior to the
stockholder becoming an interested stockholder, and after the five-year period a
business combination may only be effected if:

o the transaction was approved by the corporation's board of directors prior to
  the stockholder becoming an interested stockholder;

o the transaction receives the approval of two-thirds of the voting stock of the
  corporation not beneficially owned by the interested stockholder; or

o the transaction meets certain minimum financial terms.

An "interested stockholder" is defined to include any beneficial owner of 10% or
more of the voting power of the outstanding voting stock of the corporation and
any affiliate or associate of the interested stockholder who within the prior
five-year period has at any time owned 10% or more of the voting power.

The term "business combination" is defined broadly to include, among other
tranactions:

o the merger or consolidation of the corporation with the interested stockholder
  or any corporation that after the merger or consolidation would be an
  affiliate or associate of the interested stockholder;

o the sale, lease, exchange, mortgage, pledge, transfer or other disposition to
  an interested stockholder or any affiliate or associate of the interested
  stockholder of 10% or more of the corporation's assets, or

o the issuance or transfer to an interested stockholder or any affiliate or
  associate of the interested stockholder of 5% or more of the aggregate market
  value of the stock of the corporation.

The effect of the statute is to protect post-acquisition minority shareholders
from mergers in which they will be "frozen out" after the merger, by prohibiting
transactions in which an acquiror could favor itself at the expense of minority
stockholders. The New Jersey statute does not apply to New Jersey



                                       48
<PAGE>

corporations that do not have either their principal executive offices or
significant business operations located in New Jersey.

Under the NJBCA, a director of a New Jersey corporation, in discharging his or
her duties to the corporation, and in determining what he or she reasonably
believes to be in the best interest of the corporation may, in addition to
considering the effects of any action on shareholders, consider any of the
following.

o the effects of the action on the corporation's employees, suppliers, creditors
  and customers;

o the effects of the action on the community in which the corporation operates;
  and

o the long-term as well as the short-term interest of the corporation and its
  shareholders, including the possibility that these interests may best be
  served by the continued independence of the corporation.

Determinations resulting in the rejection of a proposal or offer to acquire the
corporation are specifically covered by this provision of the NJBCA.

NMBT SHAREHOLDER RIGHTS
In general, the DGCL prohibits an interested shareholder of a Delaware
corporation (generally defined as a person who owns 15% or more of a
corporation's outstanding voting stock) from engaging in a business combination
with that corporation for three years following the date such person became an
interested shareholder. The three-year moratorium is not applicable when:

o prior to the date the shareholder became an interested shareholder, the board
  of directors of the corporation approved either the business combination or
  the transaction that resulted in the shareholder becoming an interested
  shareholder,

o upon consummation of the transaction which resulted in the shareholder
  becoming an interested shareholder, such interested shareholder owned at least
  85% of the outstanding voting stock of the corporation (excluding shares owned
  by directors who are also officers of the corporation and by certain employee
  stock plans), or

o on or subsequent to the date that the shareholder becomes an interested
  shareholder, the business combination is approved by the board of directors of
  the corporation and by the affirmative vote at a meeting of shareholders of at
  least two-thirds of the outstanding voting stock entitled to vote thereon,
  excluding shares owned by the interested shareholder.

These restrictions of the DGCLgenerally do not apply to business combinations
with an interested shareholder that are proposed subsequent to the public
announcement of, and prior to the consummation or abandonment of, certain
mergers, sales of 50% or more of a corporation's assets or tender offers for 50%
or more of a corporation's voting stock.

The DGCL contains no "other constituency" provision.


                                       49
<PAGE>

                                 SUMMIT BANCORP.

DESCRIPTION OF BUSINESS

      Summit commenced operations on October 1, 1970 as a bank holding company
registered under the BHC Act. Summit owns three bank subsidiaries and several
active non-bank subsidiaries. At September 30, 1999, Summit had total
consolidated assets of $36.1 billion on the basis of which it ranked as the
largest New Jersey-based bank holding company.

           Summit's bank subsidiaries engage in a general banking business.
Summit Bank (New Jersey) is Summit's largest bank subsidiary, accounting for
approximately 85.7% of Summit's total consolidated assets at September 30, 1999.
Summit's non-bank subsidiaries engage primarily in securities products and
services, life, health, property and casualty insurance products and services,
venture capital investment, commercial finance lending, lease financing,
asset-based lending, letter of credit issuance, data processing and reinsuring
credit life and disability insurance policies related to consumer loans made by
the bank subsidiaries.

           As of September 30, 1999 Summit's bank subsidiaries operated 484
banking offices located in major trade centers and suburban areas in New Jersey,
eastern Pennsylvania and southwestern Connecticut. The following table lists, as
of September 30, 1999, each bank subsidiary, the number of its banking offices
and, in thousands of dollars, its total assets and deposits. All of Summit's
bank subsidiaries are state banks and both the New Jersey and Pennsylvania
subsidiaries are members of the Federal Reserve System.

<TABLE>
<CAPTION>
                                                                        NO. OF BANKING
                                                                            OFFICES         TOTAL ASSETS (1)     TOTAL DEPOSITS (1)
LOCATION OF PRINCIPAL OFFICES                                           (IN THOUSANDS)       (IN THOUSANDS)        (IN THOUSANDS)
- -------------------------                                                -------------       ---------------      ----------------
<S>                                                                           <C>               <C>                   <C>
Summit Bank, (New Jersey)                                                     366               $30,979,496           $20,969,964
Summit Bank, (Pennsylvania)                                                   105                 4,162,130             2,810,205
Summit Bank, (Connecticut)                                                     13                   892,729               581,581

- ------------------------------------------------------------------------------------------------------------------------------------
</TABLE>
(1) Not adjusted to exclude interbank deposits or other transactions among the
subsidiaries.

      Summit is a legal entity separate and distinct from its subsidiaries.
There are various legal limitations on the extent to which a bank subsidiary may
finance or otherwise supply funds to Summit or its nonbank subsidiaries. Under
federal law, no bank subsidiary may, subject to limited exceptions, make loans
or extensions of credit to, or investments in the securities of Summit or its
non-bank subsidiaries or take their securities as collateral for loans to any
borrower. Each bank subsidiary is also subject to collateral security
requirements for any loans or extensions of credit permitted by such exceptions.

      In addition, bank regulatory limitations exist on the availability of
subsidiary bank undistributed net assets for the payment of dividends to Summit
without the prior approval of the bank regulatory authorities. The Federal
Reserve Act, which affects both Summit Bank (New Jersey) and Summit Bank
(Pennsylvania), restricts the payment of dividends in any calendar year to the
net profit of the current year combined with retained net profits of the
preceding two years. Summit Bank (Connecticut), as a Connecticut chartered bank,
is subject to a similar restriction. Further, Summit Bank (New Jersey), as a New
Jersey state-chartered bank, may declare a dividend only if, after payment, its
capital stock would be unimpaired and its surplus would equal at least 50
percent of its capital stock or its surplus would not be reduced. Summit Bank
(Pennsylvania), as a Pennsylvania-chartered bank, may declare and pay a dividend
only out of accumulated net earnings and only if it has surplus at least equal
to its capital and its surplus would not be reduced by payment of the proposed
dividend. In addition, under the Federal Deposit Insurance Corporation
Improvement Act all institutions are prohibited from paying dividends if after
doing so an institution would be undercapitalized. Summit may not pay dividends
to its shareholders if after paying any dividends it would be unable to pay its
debts as they become due in the usual course of business or its total assets
would be less than its total liabilities. At September 30, 1999, the total
undistributed net assets of Summit's subsidiary banks were $2.8 billion of which
$59.1 million was available under the most restrictive limitations for the
payment of dividends to Summit.

RECENT DEVELOPMENTS

      In November, 1999 Summit announced that it will take a restructuring
charge during the fourth quarter of 1999 of approximately $25 to 30 million
pretax in conjunction with the realignment of its key lines of business and
lines of support. Summit estimates that its business realignment will eliminate
between 200 and 250 positions.

                                    50
<PAGE>

                       DESCRIPTION OF SUMMIT CAPITAL STOCK

      Summit is presently authorized to issue 390,000,000 shares of common stock
and 6,000,000 shares of preferred stock, without par value. As of September 30,
1999 there were approximately 177,510,389 shares of Summit common stock
outstanding, 2,744,256 shares of Summit common stock held in treasury, 2,000,000
shares of Summit Series S preferred stock designated in Summit's Restated
Certificate of Incorporation and reserved for issuance under the Summit
shareholder rights plan described below, and no shares of Summit preferred stock
outstanding. Pursuant to the NJBCA, Summit's board of directors has authority to
set the terms and conditions of the authorized but unissued Summit preferred
stock. Summit may issue any authorized Summit common stock and Summit preferred
stock without further shareholder vote, unless a shareholder vote is required
for a particular transaction by applicable law or New York Stock Exchange rules.
Summit common stock is presently listed on the New York Stock Exchange. The
issuance of additional Summit common stock or Summit preferred stock, including
Summit preferred stock that might be convertible into Summit common stock, may,
among other things, affect the earnings per share applicable to existing Summit
common stock and the equity and voting rights of existing holders of Summit
common stock.

      The following summary is not a complete description of all provisions
relating to Summit capital stock and is subject in all respects to the
applicable provisions of the NJBCA, Summit's Restated Certificate of
Incorporation and Summit's shareholder rights plan.

COMMON STOCK

      The rights of holders of Summit common stock are subject to the
preferences as to dividends and liquidation rights and other prior rights, if
any, of any class or series of Summit preferred stock that may be issued. The
holders of Summit common stock are entitled to one vote for each share with
respect to all matters voted upon by shareholders, including the election of
directors, and are entitled to receive dividends when, as and if declared by
Summit's board of directors out of funds of Summit legally available for the
payment of dividends. Shares of Summit common stock do not have cumulative
voting rights. Accordingly, at any annual meeting of Summit shareholders, or at
any special meeting of shareholders where an election of directors is conducted,
the holders of 50 percent plus one of the shares represented at the meeting,
provided a quorum is present, can fill all positions on Summit's board of
directors that are up for election at that meeting if they so choose. In that
event, the holders of the remaining shares will not be able to fill any
positions on the board up for election at that meeting. Summit has a classified
board of directors, under which approximately one-third of the directors are
elected each year.

      In the event of the liquidation of Summit, holders of Summit common stock
are entitled to share pro rata in the distribution of Summit's assets available
for common shareholders. All shares of Summit common stock are fully paid and
nonassessable. No preemptive rights attach to the ownership of Summit common
stock and no personal liability is imposed on the holders of common stock by
reason of the ownership of those shares. First Chicago Trust Company of New
York, a division of Equiserve is the transfer agent, dividend disbursing agent
and registrar for the Summit common stock. Summit Bank (New Jersey) is the
co-transfer agent.

SHAREHOLDER RIGHTS PLANS

      In June, 1999, Summit adopted a shareholder rights plan under which
preferred stock purchase rights ("Rights") attached to Summit common stock
outstanding as of the close of business on August 16, 1999. The shareholder
rights plan adopted in June, 1999 replaced Summit's shareholder rights plan
adopted in August, 1989, which expired August 16, 1999. Holders of shares of
Summit common stock issued subsequent to August 16, 1999 receive the Rights with
their shares. Except as indicated below, each Right entitles the registered
holder to purchase from Summit one one-hundredth (1/100) of a share of a series
of Summit preferred stock, designated the Series S preferred stock ("Summit
Series S Preferred"). The Rights expire on August 31, 2009, and are subject to
redemption and amendment in certain circumstances. The Rights trade
automatically with shares of Summit common stock and become exercisable only
under certain circumstances as described below.

      The Rights are not currently exercisable. In general, the Rights will
become exercisable upon the earlier to occur of the following: (1) ten days
following a public announcement that a person or group has acquired beneficial
ownership of 15% or more of the Summit common stock outstanding at that time or
voting securities of Summit representing 15% or more of the total voting power
of Summit (such person or group becoming an "Acquiring Person",

                                       51
<PAGE>

as defined in the rights plan) or (2) ten business days, or such later date as
Summit's board of directors may determine, after the commencement of a tender
offer or exchange offer that would result in a person or group beneficially
owning 15% or more of the outstanding Summit common stock or voting securities
representing 15% or more of the total voting power of Summit.

      Generally, in the event the Rights become exercisable by virtue of a
person or group becoming an Acquiring Person, other than pursuant to an offer
for all outstanding shares of Summit common stock and other voting securities
that Summit's board of directors determines to be fair to shareholders and
otherwise in the best interests of Summit, each Right, other than Rights owned
by the Acquiring Person, will entitle the holder to receive, upon exercise of
the Right and payment of the exercise price, Summit Series S Preferred having a
value equal to two times the exercise price of the Right.

      In the event that the Rights become exercisable and Summit is acquired in
a merger or other business combination, or 50% or more of Summit's assets or
earning power is transferred in one or a series of transactions, each Right will
entitle the holder to receive, upon the exercise of the Right, common stock of
the acquiror having a value equal to two times the exercise price of the Right.

      The provisions contained in Summit's Restated Certificate of Incorporation
relating to the Series S preferred stock may not be amended in a manner which
adversely affects the holders of Series S preferred stock without the
affirmative vote of the holders of two-thirds of the outstanding shares of
Series S preferred stock.

      The combination of prohibitive dilution of the Acquiring Person's share
values and the power of Summit's board of directors to redeem the Rights is
intended to encourage potential acquiring persons to negotiate with Summit's
board of directors with respect to the terms of any acquisition or business
combination and, to the extent possible, discourage or defeat partial or
two-tiered acquisition proposals.

      The foregoing description of the rights plan is not complete and is
qualified in its entirety by reference to the terms of the rights plan, which
are more fully described in Summit's Registration Statement on Form 8-A filed
with the Securities and Exchange Commission on July 27, 1999.

                                   NMBT CORP.

DESCRIPTION OF BUSINESS

      NMBT was formed in 1997 and is the registered bank holding company for
NMBT Bank, a wholly owned subsidiary. NMBT Bank is a state-chartered bank and
trust company founded in 1975. NMBT Bank is NMBT's only subsidiary. NMBT's
corporate headquarters is located at 55 Main Street, New Milford, Connecticut
06776-2400 (phone number: 860-355-1171).

      NMBT Bank operates primarily as a full-service community financial
institution. NMBT Bank offers a wide range of consumer and commercial services
to individuals and businesses in western Connecticut. These services include
checking accounts, N.O.W. accounts, regular savings accounts, money market
accounts, retirement accounts, savings certificates, commercial demand deposit
accounts and cash management. NMBT Bank's lending activities include residential
and commercial real estate loans, home equity loans and lines of credit,
consumer loans, secured and unsecured commercial loans, letters of credit and
both consumer and commercial credit card services.

      NMBT Bank serves its market through a network of ten full-service banking
offices located in New Milford, Kent, Bridgewater, New Fairfield, Southbury and
Danbury. Additionally, NMBT Bank has automated teller machines (ATMs) at all
office locations, inside New Milford Hospital and inside two grocery stores in
Danbury and Southbury providing customers with convenient 24-hour access to
their accounts. NMBT Bank's primary service area includes the towns of New
Milford, Kent, Bridgewater, New Fairfield, Southbury and Danbury; its secondary
service area includes the towns of Bethel, Brookfield, Middlebury, Newtown,
Oxford, Roxbury, Sherman, Warren, Washington and Woodbury.

      NMBT Bank's primary regulator is the State of Connecticut Department of
Banking and NMBT's primary regulator is the Federal Reserve Bank. NMBT Bank is
authorized to transact general banking business pursuant to the powers set forth
in the Connecticut General Statutes.

      NMBT has no subsidiaries or operations other than conventional banking
operations.

                                       52


<PAGE>
                        DESCRIPTION OF NMBT CAPITAL STOCK

GENERAL

      NMBT is authorized to issue 8,000,000 shares of common stock, and
2,000,000 shares of preferred stock. As of September 30, 1999, 2,668,558 shares
of NMBT common stock were issued and outstanding. No shares of NMBT preferred
stock are currently issued or outstanding.

      The following summary does not purport to be complete and is subject in
all respects to the applicable provisions of the Delaware General Corporation
Law, and NMBT's Amended and Restated Certificate of Incorporation and Bylaws.

      Authorized but unissued shares of NMBT capital stock may be used for
various purposes, including stock splits and dividends, potential acquisitions,
public offerings, stock option and employee stock plans and dividend
reinvestment plans. Authorized but unissued shares of capital stock, or
securities convertible into or exchangeable for such capital stock, could also
be issued by the board of directors in a manner that could make a change in
control more difficult. Under certain circumstances, such shares could be sold
privately to purchasers who might support the board of directors in opposing a
takeover bid that it determines not to be in the best interest of the
shareholders.

      Each holder of NMBT common stock is entitled to one vote for each share
held. The shares of common stock do not have cumulative voting rights. Holders
of NMBT common stock do not have preemptive rights to subscribe for or purchase
shares of any class of capital stock now or hereafter authorized or securities
convertible into shares of any class of capital stock.

      Holders of NMBT's common stock are entitled to receive dividends when, as
and if declared by the board of directors. Dividends may be declared and paid
only out of funds legally available therefore. In the event of liquidation of
NMBT, holders of NMBT common stock are entitled to share pro rata in the net
assets of NMBT remaining after payment of all amounts due creditors.

                                       53
<PAGE>

                  PROPOSAL II -- ADJOURNMENT OF SPECIAL MEETING

      In the event there are not sufficient votes to constitute a quorum for the
special meeting or to approve the merger agreement at the time of the special
meeting, the merger agreement could not be approved unless the special meeting
was adjourned in order to permit further solicitation of proxies. In order to
allow proxies that have been received by NMBT at the time of the special meeting
to be voted for adjournment under these circumstances, NMBT has submitted the
question of adjournment to its shareholders as a separate matter for their
consideration. In order to approve any adjournment a majority of the shares
entitled to vote must be cast in favor of Proposal 2.

      NMBT's board of directors recommends that shareholders vote their proxies
FOR the adjournment proposal so that their proxies may be used for purposes of
adjourning the special meeting under the circumstances described in the
preceding paragraph.

      Properly executed proxies will be voted in favor of adjournment unless
otherwise indicated thereon. However, proxies voting AGAINST the merger
agreement will not be voted in favor of the adjournment proposal unless the
shareholder has voted FOR approval of the adjournment proposal on the proxy
card.

                              SHAREHOLDER PROPOSALS

      NMBT shareholders will not be entitled to submit proposals for
consideration at the special meeting except to the extent the proposals relate
directly to the matters to come before the special meeting as set forth in this
Proxy Statement-Prospectus. If the merger is not approved at the special meeting
and NMBT subsequently holds its annual meeting for 2000, NMBT shareholders will
be entitled to submit proposals on matters appropriate for shareholder action
consistent with regulations of the Securities and Exchange Commission and NMBT's
Bylaws. No date has been set for NMBT's 2000 annual meeting of shareholders.

      Summit's By-Laws provide that shareholder proposals which do not appear in
the proxy statement may be considered at a meeting of shareholders only if
written notice of the proposal is received by the Secretary of Summit not less
than 80 and not more than 100 days before the anniversary of the preceding
year's annual meeting. However, if the date of the annual meeting is more than
30 days before or more than 60 days after that anniversary date, the notice of a
shareholder proposal, to be timely, must be received by the Secretary not later
than the close of business on the later of the 80th day prior to the annual
meeting or the tenth day following the day on which public announcement of the
meeting date is first made. Any notice of a shareholder proposal by a
shareholder to the Secretary of Summit must be accompanied by:

      o the name and address of the shareholder who intends to present the
        proposal for a vote;

      o a representation that the shareholder is a holder of record of shares
        entitled to vote at the meeting;

      o a description of all agreements, arrangements or understandings between
        the shareholder and any other shareholder relating to the proposal to be
        voted on and any financial or contractual interest of either shareholder
        in the outcome of the vote; and

      o all other information regarding the proposal to be voted on and the
        shareholder intending to present the proposal for a vote as would be
        required to be included in a proxy statement soliciting the vote of
        shareholders in respect of the proposal pursuant to the proxy rules of
        the Securities and Exchange Commission.

      Summit's board of directors will consider and include in Summit's proxy
statement for the 2000 annual meeting of Summit shareholders proposals which
meet the regulations of the Securities and Exchange Commission and New Jersey
law and which comply with Summit's By-laws. In order to be eligible for
inclusion, proposals were required to be addressed to Summit's Secretary and
must have been received on or before November 9, 1999.

                                  OTHER MATTERS

      NMBT's board of directors is not aware of any business to come before the
special meeting other than those matters described in this Proxy
Statement-Prospectus. However, if any other matters should properly come before
the special meeting, the proxy holders intend to vote on those matters in
accordance with their reasonable business judgment.

                                  LEGAL MATTERS

      The legality of the Summit common stock offered by this Proxy
Statement-Prospectus will be passed upon for Summit by Richard F. Ober, Jr.,
Esq., Executive Vice President, General Counsel and Secretary of Summit. Mr.
Ober

                                       54
<PAGE>

owns ________ shares of Summit common stock and options to purchase _______
shares of Summit common stock at a weighted average exercise price of $______.
Certain federal tax matters will be passed upon for Summit and NMBT by Thompson
Coburn, St. Louis, Missouri. Certain legal matters will be passed upon for NMBT
by Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, PC, Boston, Massachusetts.

                                     EXPERTS

      The consolidated financial statements of Summit Bancorp. and subsidiaries
as of December 31, 1998 and 1997 and for each of the years in the three-year
period ended December 31, 1998, included in Summit's Annual Report on Form 10-K,
incorporated by reference herein and in the Registration Statement on Form S-4
("Registration Statement"), have been incorporated by reference herein and in
the Registration Statement in reliance upon the report of KPMG LLP, independent
certified public accountants, incorporated by referenced herein, and upon the
authority of KPMG LLP as experts in accounting and auditing.

      The consolidated financial statements of NMBT Corp., and subsidiaries as
of December 31, 1998 and 1997 incorporated in this Proxy Statement-Prospectus by
reference from NMBT's Annual Report on Form 10-K for the year ended December 31,
1998, have been audited by Deloitte & Touche LLP, independent auditors, as
stated in their report, which is incorporated herein by reference and have been
so incorporated in reliance upon the report of such firm given upon their
authority as experts in accounting and auditing.

                       WHERE YOU CAN FIND MORE INFORMATION

      Summit has filed with the Securities and Exchange Commission under the
Securities Act the Registration Statement which registers the distribution to
NMBT shareholders of the shares of Summit common stock to be issued in
connection with the merger. The Registration Statement, including the attached
exhibits and schedules, contains additional relevant information about Summit
and Summit common stock. The rules and regulations of the Securities and
Exchange Commission allow us to omit certain information included in the
Registration Statement from this Proxy Statement-Prospectus.

      In addition, both Summit and NMBT file reports, proxy statements and other
information with the Securities and Exchange Commission under the Exchange Act.
You may read and copy this information at the following locations of the
Securities and Exchange Commission:

<TABLE>
<CAPTION>
      <S>                                    <C>                                        <C>
      Public Reference Room                  New York Regional Office                   Chicago Regional Office
      450 Fifth Street, N.W.                 7 World Trade Center                       Citicorp Center
      Room 1024                              Suite 1300                                 500 West Madison Street
      Washington, D.C. 20549                 New York, New York 10048                   Suite 1400

                                                                                        Chicago, Illinois 60661-2511
</TABLE>

      You may also obtain copies of this information by mail from the Public
Reference Section of the Securities and Exchange Commission, 450 Fifth Street,
N.W., Room 1024, Washington, D.C. 20549, at prescribed rates.

      The Securities and Exchange Commission also maintains an Internet world
wide web site that contains reports, proxy statements and other information
about issuers, like Summit and NMBT, who file electronically with the Securities
and Exchange Commission. The address of that site is http://www.sec.gov.

      You can also inspect reports, proxy statements and other information about
Summit at the offices of the New York Stock Exchange, 20 Broad Street, New York,
New York 10005 and reports, proxy statements and other information about NMBT at
the offices of the Nasdaq, 1735 K Street, N.W., Washington, D.C. 20006.

      The Securities and Exchange Commission allows Summit and NMBT to
"incorporate by reference" information into this Proxy Statement-Prospectus.
This means that we can disclose important information to you by referring you to
another document filed separately with the Securities and Exchange Commission.
The information incorporated by reference is considered to be a part of this
Proxy Statement-Prospectus, except for any information that is superseded by
information that is included directly in this document.

           This Proxy Statement-Prospectus incorporates by reference the
documents listed below that Summit and NMBT have previously filed with the
Securities and Exchange Commission. They contain important information about our
companies and their financial condition.

                                       55
<PAGE>


<TABLE>
<CAPTION>
SUMMIT SEC FILINGS                                             PERIOD
- -----------------                                              ------
<S>                                                            <C>
Annual Report on Form 10-K                                     Year ended December 31, 1998
Reports on Form 8-K                                            Reports dated April 27, 1999 and June 16, 1999
Quarterly Report on Form 10-Q and
   Amendment No. 1 to Quarterly Report on

   Form 10-Q (Form 10-Q/A)                                     Quarter ended March 31, 1999
Quarterly Reports on Form 10-Q                                 Quarters ended June 30, 1999 and September 30, 1999
</TABLE>

      The description of Summit common stock set forth in the Summit
Registration Statement on Form 10 filed pursuant to Section 12(b) of the
Exchange Act dated August 31, 1970, including any amendment or report filed with
the Securities and Exchange Commission for the purpose of updating such
description.

      The description of Summit Preferred Stock Purchase Rights set forth in the
Summit registration statement filed under Section 12 of the Exchange Act on Form
8-A on July 27, 1999, including any amendment or report filed with the
Securities and Exchange Commission for the purpose of updating such description.

<TABLE>
<CAPTION>
NMBT SEC FILING                                                      PERIOD
- -----------------                                                    ------
<S>                                                                  <C>
Annual Report on Form 10-K                                           Year ended December 31, 1998
Reports on Form 8-K                                                  Report dated October 3, 1999
Quarterly Reports on Form 10-Q                                       Quarters ended March 31, 1999, June 30, 1999
                                                                       and September 30, 1999
</TABLE>

      The description of NMBT common stock set forth in the NMBT Registration
Statement on Form 8-A filed pursuant to Section 12 of the Exchange Act on
November 25, 1997, including any amendment or report filed with the Securities
and Exchange Commission for the purpose of updating such description.

      Summit and NMBT incorporate by reference additional documents that either
company may file with the Securities and Exchange Commission between the date of
this Proxy Statement-Prospectus and the date of the special meeting. The
documents include periodic reports, such as Annual Reports on Form 10-K,
Quarterly Reports on Form 10-Q and current reports on Form 8-K, as well as proxy
statements.

      You can obtain any of the documents incorporated by reference in this
document through Summit or NMBT, as the case may be, or from the Securities and
Exchange Commission through the Securities and Exchange Commission's web site at
the address described above. Documents incorporated by reference are available
from the companies without charge, excluding any exhibits to those documents
unless the exhibit is specifically incorporated by reference as an exhibit in
this Proxy Statement-Prospectus. You can obtain documents incorporated by
reference in this Proxy Statement-Prospectus by requesting them in writing or by
telephone from the appropriate company at the following addresses:

<TABLE>
<CAPTION>
     SUMMIT BANCORP.                                              NMBT CORP.
     <S>                                                          <C>
     Attention: Corporate Secretary                               Attention: Corporate Secretary
     301 Carnegie Center                                          55 Main Street
     Princeton, NJ 08543                                          New Milford, CT  06776
     Telephone: (609) 987-3442                                    Telephone: (860) 355-1171
</TABLE>

      If you would like to request documents, please do so by January __, 2000
to receive them before the special meeting. If you request any incorporated
documents from us, we will mail them to you by first class mail, or another
equally prompt means, within one business day after we receive your request.

      We have not authorized anyone to give any information or make any
representation about the merger or our companies that is different from, or in
addition to, that contained in this Proxy Statement-Prospectus or in any of the
materials that we have incorporated into this document. Therefore, if anyone
does give you information of this sort, you should not rely on it. If you are in
a jurisdiction where offers to exchange or sell, or solicitations of offers to
exchange or purchase, the securities offered by this document or the
solicitation of proxies is unlawful, or if you are a person to whom it is
unlawful to direct these types of activities, then the offer presented in this
document does not extend to you. The information contained in this document
speaks only as of the date of this document unless the information specifically
indicates that another date applies.

                                       56

<PAGE>

                                                                      APPENDIX A

                          AGREEMENT AND PLAN OF MERGER

       AGREEMENT  AND PLAN OF  MERGER  dated  October  3,  1999  between  Summit
Bancorp.,  a New  Jersey  business  corporation  ("Summit"),  and NMBT  CORP,  a
Delaware corporation ("NMBT").

                              W I T N E S S E T H :

       WHEREAS,  the  respective  boards of directors of Summit and NMBT deem it
advisable and in the best interests of their respective  shareholders to adopt a
plan of  reorganization  in accordance with the provisions of Section 368 of the
Internal  Revenue  Code  of  1986,  as  amended  (  "Code")  providing  for  the
acquisition of NMBT by Summit on the terms and  conditions  provided for in this
Agreement and Plan of Merger ("Agreement");

       WHEREAS,  the Board of Directors of Summit and NMBT have each  determined
that the  reorganization  contemplated by this Agreement  ("Reorganization")  is
consistent with, and in furtherance of, their respective business strategies and
goals;

       WHEREAS,  Summit  and  NMBT  intend  on the day  after  the  date of this
Agreement and in  consideration of this Agreement to enter into the Stock Option
Agreement ("Option Agreement") attached hereto as Exhibit B; and

       WHEREAS, the parties desire to make certain  representations,  warranties
and  agreements  in  connection  with the  Reorganization  and also to prescribe
certain other terms and conditions of the Reorganization.

       NOW, THEREFORE, in consideration of the premises and the representations,
warranties,  covenants  and  agreements  contained  herein  and  in  the  Option
Agreement, the parties hereto, intending to be legally bound, agree as follows:

                                   ARTICLE I.
                               GENERAL PROVISIONS

       Section 1.01.       The Reorganization.

       (a) Upon the  terms  and  subject  to the  conditions  contained  in this
Agreement,   at  the  Effective   Time  (as  defined  at  Section   1.06),   the
Reorganization shall be effected as follows:

              (1) NMBT shall be merged with and into  Summit  pursuant to and in
accordance  with the  provisions  of, and with the effect  provided  in, the New
Jersey Business  Corporation Act, as amended ("New Jersey Act") and the Delaware
General Corporation Law, as amended ("Delaware Law"); or

              (2) NMBT shall be merged into a wholly owned  subsidiary of Summit
or a wholly owned subsidiary of Summit shall be merged into NMBT, in either case
pursuant  to and in  accordance  with the  provisions  of,  and with the  effect
provided in, the corporate laws of the  jurisdiction of incorporation of each of
the constituent corporations in such merger ("Applicable Corporation Laws").

       (b)  Summit  shall  prior to the  Effective  Time  elect the  method  for
carrying out the  Reorganization  from among those  methods set forth at Section
1.01(a) ("Reorganization Election")

                                      A-1
<PAGE>



and following an election of the  Reorganization  method provided for at Section
1.01(a)(2)  Summit  shall  (i)  cause  the  wholly  owned  subsidiary  of Summit
designated as the  constituent  corporation in the  Reorganization  ("Designated
Summit Subsidiary") to approve, execute and deliver this Agreement in accordance
with all Applicable  Corporation  Laws, (ii) cause this Agreement to be approved
by the sole  shareholder of the Designated  Summit  Subsidiary,  (iii) attach as
Exhibit A to this  Agreement  (A) any  additional  terms and  conditions to this
Agreement  required by Applicable  Corporation Laws to effect the Reorganization
and  other  transactions  contemplated  by this  Agreement,  (B) the  terms  and
conditions of any agreement or plan of merger required by Applicable Corporation
Laws,  (C) the date and time that the merger shall be effective or the mechanism
for  determining  the date and time that the merger shall be  effective  and (D)
such other terms and  conditions as Summit shall  determine in its discretion to
be desirable and not contrary to this Agreement or Applicable  Corporation  Laws
regarding  the  corporate  governance  of the  corporation  surviving the merger
contemplated  by  Section  1.01(a),   including  without  limitation  terms  and
conditions  governing  certificates or articles of incorporation  and amendments
thereto or restatements thereof, by-laws of the corporation surviving the merger
and amendments thereto, and directors and officers of the corporation  surviving
the merger; provided, however, that no provision of Exhibit A shall (x) alter or
change the amount or kind of consideration  to be received by NMBT  Shareholders
(as defined at Section  1.07(c)  below) as provided for in this Agreement on the
date  hereof,  (y)  adversely  affect the tax  treatment  of the  Reorganization
Consideration  (as defined in Section  1.03(a)(2)  below) to be received by NMBT
Shareholders or (z) materially impede or delay  consummation of the transactions
contemplated by this Agreement and (iv) cause the Designated  Summit  Subsidiary
to take all actions  appropriate to accomplish the  Reorganization and the other
transactions  contemplated by this Agreement.  Exhibit A as so constituted shall
constitute a part of this  Agreement as fully as if attached  hereto on the date
hereof without separate execution by Summit or NMBT.

       Section 1.02. Capital Stock of Summit. All shares of the capital stock of
Summit issued or issued and outstanding immediately prior to the Effective Time,
including the Common Stock,  par value $.80 per share,  of Summit and the rights
attached thereto ("Summit  Rights") pursuant to the Rights Agreement dated as of
June 16, 1999 between  Summit and First  Chicago  Trust  Company of New York, as
Rights Agent ("Summit  Rights  Agreement")  (references to "Summit Stock" herein
shall mean the Common  Stock of Summit with  Summit  Rights  attached  thereto),
shall be unaffected by the  Reorganization and shall remain issued or issued and
outstanding, as the case may be, immediately thereafter.

       Section 1.03.       Terms of Conversion of NMBT Capital Stock.

       (a) At the Effective  Time, by virtue of the  Reorganization  and without
any action on the part of any shareholder of NMBT:

              (1) All shares of the Common Stock,  par value $0.01 per share, of
NMBT  ("NMBT  Stock")  which   immediately  prior  to  the  Effective  Time  are
beneficially  owned either  directly,  or indirectly  through a bank,  broker or
other  nominee,  by Summit or a subsidiary  of Summit or NMBT or a subsidiary of
NMBT (other than NMBT Stock held as a result of foreclosures or debts previously
contracted  and  NMBT  Stock  held in  fiduciary,  discretionary  and  custodial
accounts and other representative  capacities),  if any, or held in the treasury
of NMBT, if any, shall be canceled and retired and no cash,  securities or other
consideration  shall be payable or paid or  delivered  under this  Agreement  in
exchange for such NMBT Stock; and

              (2)  Subject to  Section  1.03(a)(1),  outstanding  shares of NMBT
Stock held as of the

                                        A-2

<PAGE>



Effective Time by each NMBT  Shareholder  shall be converted in accordance  with
the New Jersey Act and the Delaware  Law into the right to receive  whole shares
of  Summit  Stock  and cash in lieu of  fractional  shares  of  Summit  Stock as
follows:  the  aggregate  number  of  shares  of NMBT  Stock  held by each  NMBT
Shareholder  shall be  multiplied  by the Exchange  Ratio (as defined at Section
1.03(c) below) and (i) a NMBT Shareholder shall become entitled to receive whole
shares of Summit Stock  pursuant to this Section  1.03(a)(2)  equal in number to
the whole number which  results from the foregoing  multiplication,  and (ii) an
NMBT Shareholder  shall become entitled to receive cash pursuant to this Section
1.03(a)(2)  in lieu of a  fractional  share of Summit  Stock,  if any,  equal in
amount to the product  obtained  by  multiplying  the  fraction,  if any,  which
results from the foregoing  multiplication  by the closing price of one share of
Summit Stock on the New York Stock Exchange ("NYSE") Composite Transactions List
(as reported in The Wall Street Journal or, in the absence thereof,  as reported
by another  authoritative source mutually agreed upon by NMBT and Summit) on the
last trading day ending  prior to the  Effective  Time ("Cash In Lieu  Amount").
(The shares of Summit Stock issuable in accordance with this Section  1.03(a)(2)
are sometimes  referred to herein as the "Shares").  (The Shares and any Cash In
Lieu Amounts payable in the Reorganization, both adjusted as and if necessary in
accordance with Section 1.03(b), are sometimes  collectively  referred to herein
as the "Reorganization Consideration").

       (b) In the event that,  from the date hereof to the Effective  Time,  the
outstanding Summit Stock shall have been increased,  decreased,  changed into or
exchanged  for a  different  number  or kind of  shares  or  securities  through
reorganization, recapitalization, reclassification, stock dividend, stock split,
reverse stock split or there occur other like changes in the outstanding  shares
of Summit Stock ("Capital  Change"),  the Exchange Ratio and, if necessary,  the
form and  amount of Summit  capital  stock  issuable  in the  Reorganization  in
exchange  for NMBT Stock shall be  appropriately  adjusted to give effect to the
Capital Change.

       (c) The "Exchange Ratio" is hereby defined to be the number determined in
accordance with the following provisions of this Section 1.03(c):

              (A)   If the  Summit  Price (as  defined  at  Section  9.02(e)(ii)
                    below) is greater than  $37.01563,  the Exchange Ratio shall
                    be 0.7024;

              (B)   If the Summit  Price is equal to or greater  than  $27.35938
                    and  equal to or less than  $37.01563,  the  Exchange  Ratio
                    shall be equal to the quotient  obtained by dividing  $26.00
                    by the Summit Price; and

              (C)   If the Summit  Price is less than  $27.35938,  the  Exchange
                    Ratio shall be 0.9503.

       Section 1.04. Reservation of Summit Stock; Issuance of Shares Pursuant to
the  Reorganization.  Summit shall  reserve and make  available  for issuance to
holders of NMBT Stock in connection  with the  Reorganization,  on the terms and
subject to the conditions of this Agreement,  sufficient  shares of Summit Stock
to effect the conversion  contemplated by Section 1.03 and related terms of this
Agreement,  which shares,  when issued and delivered,  will be duly  authorized,
legally  and validly  issued,  fully paid and  non-assessable  and subject to no
preemptive  rights.  Upon  the  terms  and  subject  to the  conditions  of this
Agreement,  particularly  Sections 1.03 and 1.07,  Summit shall issue the Shares
after the Effective Time to NMBT Shareholders.

         Section 1.05. Exchange Agent Arrangements. Prior to the Effective Time,
Summit shall

                                       A-3

<PAGE>



appoint  Equiserve - First Chicago Trust Division,  or another entity reasonably
satisfactory to NMBT, as the exchange agent ("Exchange  Agent")  responsible for
exchanging,  in connection with and upon consummation of the  Reorganization and
subject to Sections  1.03 and 1.07,  certificates  representing  whole shares of
Summit Stock ("Summit  Certificates")  and Cash In Lieu Amounts for certificates
representing shares of NMBT Stock ("NMBT Certificates") and Summit shall deliver
to the  Exchange  Agent  sufficient  Summit  Certificates  and  cash as shall be
required to satisfy  Summit's  obligations  to NMBT  Shareholders  under Section
1.07(c), prior to the time such obligations arise.

       Section  1.06.  Effective  Time.  In  the  event  that  pursuant  to  the
Reorganization  Election Summit elects the Reorganization method provided for at
Section 1.01(a)(1), the "Effective Time" of the Reorganization shall be the hour
and the date  specified  in the  certificate  of merger of Summit and NMBT filed
with the  Secretary  of State of the  State of New  Jersey  in  accordance  with
Section  14A:10-4.1 of the New Jersey Act ("NJ Certificate") and the certificate
of merger of Summit and NMBT filed with the  Secretary  of State of the State of
Delaware  ("Delaware  Certificate")  filed in accordance with Section 252 of the
Delaware  Law,  which  such  hour and date  shall  be  identical  in both the NJ
Certificate  and the  Delaware  Certificate.  In the event that  pursuant to the
Reorganization  Election Summit elects the Reorganization method provided for at
Section 1.01(a)(2), the "Effective Time" of the Reorganization shall be the date
and time specified in Exhibit A or determined in accordance with Exhibit A.

       Section 1.07.       Exchange of NMBT Certificates.

       (a) After the Effective Time and subject to Section  1.07(c) below,  each
NMBT Shareholder  (except as provided  otherwise in Section  1.03(a)(1)  above),
upon surrender to the Exchange Agent of all NMBT Certificates  registered to the
NMBT  Shareholder,  shall be entitled  to receive in exchange  therefor a Summit
Certificate  representing  the number of whole  shares of Summit Stock such NMBT
Shareholder  becomes entitled to receive pursuant to Section  1.03(a)(2) and the
Cash In Lieu Amount, payable by check, such NMBT Shareholder may become entitled
to receive  pursuant to Section  1.03(a)(2).  Until so surrendered,  outstanding
NMBT Certificates  held by each NMBT  Shareholder,  other than NMBT Certificates
governed by Section 1.03(a)(1),  shall be deemed for all purposes (other than as
provided  below with respect to  unsurrendered  NMBT  Certificates  and Summit's
right to refuse payment of dividends or other distributions,  if any, in respect
of Summit  Stock) to  represent  only the right to  receive  the number of whole
shares of Summit Stock and the Cash In Lieu Amount,  if any,  without  interest,
determined in accordance with Section 1.03(a)(2).  Until so surrendered,  Summit
may,  at its  option,  refuse to pay to the  holders of the  unsurrendered  NMBT
Certificates dividends or other distributions,  if any, on Summit Stock declared
after  the  Effective  Time;  provided,  however,  that upon the  surrender  and
exchange of NMBT  Certificates  following a dividend  or other  distribution  on
Summit Stock there shall be paid to such NMBT  Shareholders the amount,  without
interest,  of dividends and other  distributions,  if any,  which became payable
prior to such surrender and exchange but which were not paid.

       (b) Holders of NMBT  Certificates as of the Effective Time shall cease to
be, and shall have no further rights as, shareholders of NMBT.

       (c) As promptly as practicable,  but in no event more than 10 days, after
the Exchange  Agent  receives an accurate  and  complete  list of all holders of
record of outstanding NMBT Stock as of the Effective Time ("NMBT  Shareholders")
(including the address and social security number of and the number of shares of
NMBT Stock held by each NMBT Shareholder) from NMBT ("Final  Shareholder List"),
Summit  shall  cause  the  Exchange  Agent  to  send to  each  NMBT  Shareholder
instructions  and transmittal  materials for use in surrendering  and exchanging
NMBT Certificates for

                                        A-4

<PAGE>



the Reorganization Consideration. If NMBT Certificates are properly presented to
the  Exchange  Agent (with proper  presentation  including  satisfaction  of all
requirements of the letter of transmittal), Summit shall as soon as practicable,
but in no event more than 10 days,  after the later to occur of such presentment
or the  receipt  by  the  Exchange  Agent  of an  accurate  and  complete  Final
Shareholder  List from NMBT cause the Exchange Agent to cancel and exchange NMBT
Certificates for Summit Certificates and Cash In Lieu Amounts, if any; provided,
however,  that if the Exchange Agent, in order to satisfy its obligations  under
the Code with respect to the reporting of dividend income to former shareholders
of NMBT, must suspend the exchange  process  provided for in the second sentence
of this Section  1.07(c) in order to preserve and report the required  reporting
information,  the 10-day exchange  requirement shall be extended 5 business days
for exchanges being processed by the Exchange Agent at the  commencement  of, or
which are received during, the period of the suspension.

       (d) At and after the  Effective  Time there shall be no  transfers on the
stock transfer books of NMBT of the shares of NMBT Stock which were  outstanding
immediately prior to the Effective Time.

       Section 1.08.  Restated  Certificate of Incorporation and By-Laws. In the
event  that  pursuant  to  the   Reorganization   Election   Summit  elects  the
Reorganization   method  provided  for  at  Section  1.01(a)(1):   the  Restated
Certificate  of  Incorporation  of  Summit in  effect  immediately  prior to the
Effective  Time  shall  be the  Restated  Certificate  of  Incorporation  of the
corporation surviving the Reorganization  ("Surviving  Corporation"),  except as
duly  amended  thereafter  and except to the extent  such is deemed by law to be
affected by the NJ Certificate;  and the By-Laws of Summit in effect immediately
prior to the Effective  Time shall be the By-Laws of the Surviving  Corporation,
except  as  duly  amended  thereafter.   In  the  event  that  pursuant  to  the
Reorganization  Election Summit elects the Reorganization method provided for at
Section 1.01(a)(2),  the certificate or articles of incorporation and by-laws of
the Surviving Corporation shall be as set forth in Exhibit A.

       Section 1.09. Board of Directors and Officers. In the event that pursuant
to the Reorganization  Election Summit elects the Reorganization method provided
for at Section 1.01(a)(1):  the Board of Directors of the Surviving  Corporation
shall  consist  of the  members  of the  Board of  Directors  of  Summit  at the
Effective Time; the officers of the Surviving  Corporation  shall consist of the
officers of Summit at the Effective  Time; and such directors and officers shall
serve  as  such  for  the  terms  prescribed  in  the  Restated  Certificate  of
Incorporation  and By-Laws of Summit,  or as otherwise  provided by law or until
their earlier deaths,  resignation or removal. In the event that pursuant to the
Reorganization  Election Summit elects the Reorganization method provided for at
Section  1.01(a)(2),  the members of the Board of Directors  and the officers of
the Surviving Corporation shall be as set forth in Exhibit A.

       Section 1.10.       NMBT Stock Options.

       (a) At the  Effective  Time,  each NMBT  Option  (as  defined  in Section
1.10(b)  below)  shall be  deemed to  constitute,  and  shall  automatically  be
converted on the terms set forth in this Section 1.10 into,  options to purchase
Summit  Stock  ("Converted   Options")  and  each  Converted  Option  (i)  shall
immediately vest to the extent the related NMBT Option was vested or as provided
in the NMBT Stock  Compensation  Plan (as defined at Section  2.01(d)(3)  below)
under  which the  related  NMBT  Option  was  granted  and in the  stock  option
agreement  by which it was  evidenced,  and (ii)  shall be  administered  in all
material  respects in accordance  with the terms and conditions  provided for in
the NMBT Stock Compensation Plan under which the related NMBT Option was granted
and in the stock option agreement by which it was evidenced;  provided, however,
that the following two

                                        A-5

<PAGE>



revisions  shall be made:  (A) Converted  Options held by any  Converted  Option
holder whose employment with Summit  terminates within one year of the Effective
Time,  other  than due to a  termination  by  Summit  for  cause,  shall  remain
exercisable  until the  later to occur of the  exercisability  termination  date
provided for in the particular  Converted Option or the first anniversary of the
Effective  Date;  provided  further,  however,  that no Converted  Option may be
exercised beyond the expiration date of the particular Converted Option; and (B)
Converted  Option  holders  shall have the right,  exercisable  only for 30 days
following the Effective  Time, in lieu of exercising all Converted  Options then
outstanding,  to elect to receive from Summit,  with respect to all  outstanding
Converted  Options then held by such holders,  a cash lump sum  representing the
aggregate  difference  between the exercise price of their Converted Options and
the Summit  Price.  The number of shares of Summit  Stock which may be purchased
upon exercise of a particular  Converted Option shall be the number of shares of
NMBT Stock which would have been  issuable  upon exercise in full of the related
NMBT Option  multiplied  by the  Exchange  Ratio and rounded down to the nearest
whole number ("Converted Number").  The exercise price per share of Summit Stock
purchasable  upon  exercise of a  Converted  Option  shall  equal the  aggregate
exercise  price that would have been  payable  upon an  exercise  in full of the
related  NMBT  Option  divided by the  Converted  Number  and  rounded up to the
nearest  ten-thousandth  of a dollar.  In the event a Capital Change shall occur
prior to the Effective  Time,  an  appropriate  adjustment  shall be made to the
terms  of the  NMBT  Options  at the time of the  foregoing  conversion  so that
Converted  Options give effect to the Capital  Change.  Within 45 days after the
receipt  by Summit of an  accurate  and  complete  list of all  holders  of NMBT
Options,  all  information  about  the  NMBT  Options  and the  holders  thereof
(including  the  address  and social  security  number of each such holder and a
description  of the NMBT Options held by such holder  specifying,  at a minimum,
the plan under which  issued,  type  (incentive  or  nonqualified),  grant date,
expiration  date,  exercise price and the number of shares of NMBT Stock subject
thereto)  and  copies of each form of option  agreement,  warrant  agreement  or
letter agreement entered into between NMBT and a holder of a NMBT Option (all of
the  foregoing  being  collectively  referred  to as the "Final  Option List and
Materials"),  Summit shall issue to the holders of such NMBT Options appropriate
instruments  confirming the rights of such holders with respect to Summit Stock,
on the terms and conditions provided by this Section 1.10, upon surrender of the
outstanding instruments representing such NMBT Options; provided,  however, that
Summit  shall not be obligated to issue any such  confirming  instruments  which
relate to the  issuance of Summit  Stock,  or issue any shares of Summit  Stock,
until  such  time as the  shares of  Summit  Stock  issuable  upon  exercise  of
Converted  Options shall have been  registered  with the Securities and Exchange
Commission  (the "SEC")  pursuant to an  effective  registration  statement  and
authorized  for  listing  on the  NYSE  and for  sale by any  appropriate  state
securities regulators,  which such registrations and authorizations Summit shall
use its best efforts to effect within 45 days after NMBT shall have delivered to
Summit the Final Option List and Materials. Summit shall use its best efforts to
maintain the  effectiveness  of such  registration  statement  (and maintain the
current status of the prospectus or prospectuses  contained therein) for so long
as any Converted  Options  remain  outstanding.  Summit shall take all corporate
action necessary to reserve for issuance a sufficient number of shares of Summit
Stock for delivery upon exercise of Converted Options.  Notwithstanding anything
in the foregoing to the contrary, NMBT Options intended to qualify as "incentive
stock options"  under the Code shall be converted  into  Converted  Options in a
manner consistent with the preservation of such qualification under the Code.

       (b) For purposes of this Section 1.10, "NMBT Option" is hereby defined to
mean  an  option  relating  to the  purchase  of  NMBT  Stock,  and  any  rights
appurtenant  thereto  including  Equity  Based  Rights  (as  defined  at Section
2.01(d)(2)  below),  granted under a NMBT Stock Compensation Plan (as defined at
Section  2.01(d)(3)  below),  outstanding  both on the  date  hereof  and at the
Effective Time.

                                        A-6

<PAGE>



       Section  1.11.  Additional  Actions.  If, at any time after the Effective
Time,  the Surviving  Corporation  shall  consider or be advised that any deeds,
bills of sale,  assignments,  assurances  or any other  actions  or  things  are
necessary or desirable to vest, perfect or confirm of record or otherwise in the
Surviving  Corporation  its right,  title or interest in, to or under any of the
rights, properties or assets of NMBT acquired or to be acquired by the Surviving
Corporation  as a result  of,  or in  connection  with,  the  Reorganization  or
otherwise  to carry  out this  Agreement,  the  officers  and  directors  of the
Surviving  Corporation  shall be authorized to execute and deliver,  in the name
and on behalf of NMBT or otherwise,  all such deeds, bills of sale,  assignments
and  assurances  and to take, in the name and on behalf of NMBT,  all such other
actions and things as may be necessary or desirable to vest,  perfect or confirm
any and all right,  title and interest in, to and under such rights,  properties
or assets in the Surviving Corporation or otherwise to carry out this Agreement.

       Section  1.12.  Unclaimed  Reorganization  Consideration.  If,  upon  the
expiration   of  one  year   following  the   Effective   Time,   Reorganization
Consideration  remains  with  the  Exchange  Agent  due to the  failure  of NMBT
Shareholders  to surrender and exchange  NMBT  Certificates  for  Reorganization
Consideration,  Summit may,  at its  election,  continue to retain the  Exchange
Agent for purposes of the  surrender and exchange of NMBT  Certificates  or take
possession of such unclaimed Reorganization Consideration,  in which such latter
case, NMBT  Shareholders who have  theretofore  failed to surrender and exchange
NMBT  Certificates  shall  thereafter  look only to Summit  for  payment  of the
Reorganization  Consideration  and the unpaid  dividends  and  distributions  on
Summit Stock declared after the Effective  Time,  without any interest  thereon.
Notwithstanding the foregoing,  none of Summit,  NMBT, the Exchange Agent or any
other  person  shall be liable to any former  holder of shares of NMBT Stock for
any property  properly  delivered to a public  official  pursuant to  applicable
abandoned property, escheat or similar laws.

       Section 1.13. Lost NMBT  Certificates.  In the event any NMBT Certificate
shall have been lost,  stolen or  destroyed,  upon the making of an affidavit of
that fact by the person  claiming such NMBT  Certificate  to be lost,  stolen or
destroyed and the posting by such person of a personal,  nonsurety  bond in such
amount as Summit may determine is reasonably  necessary as indemnity against any
claim that may be made  against it with  respect to such NMBT  Certificate,  the
Exchange  Agent will issue in exchange for such lost,  stolen or destroyed  NMBT
Certificate  the  Reorganization  Consideration  deliverable in respect  thereof
pursuant to this Agreement.


                                   ARTICLE II.
                     REPRESENTATIONS AND WARRANTIES OF NMBT

       NMBT represents and warrants to Summit as follows (where an item required
to be  disclosed  on a NMBT  Schedule is required to be disclosed on one or more
additional NMBT Schedules, or where a copy of an item required to be attached to
a NMBT  Schedule  is required  to be  attached  to one or more  additional  NMBT
Schedules,  such  disclosure  or copy need not be provided on more than one NMBT
Schedule  provided the NMBT  Schedules  with respect to which the  disclosure or
copy is required but not provided  contain a cross  reference to the location of
the  required  disclosure  or copy in the NMBT  Schedules  which  is  clear  and
unambiguous):

       Section 2.01.       Organization, Capital Stock.

       (a) Each of NMBT and its  nonbank  subsidiaries,  if any,  including  any
nonbank  subsidiaries of Bank (as defined at Section 2.01(e) below), if any (the
term  "subsidiary",  as used in this  Agreement,  shall mean any  corporation or
other organization of which 10% or more of the shares

                                        A-7

<PAGE>



or other  interests  having  by their  terms  ordinary  voting  power to elect a
majority of the Board of Directors or other group performing  similar  functions
with respect to such corporation or other organization is directly or indirectly
owned by NMBT or a "subsidiary"  of NMBT; the term  "indirect"  ownership  means
ownership through a succession of one or more other subsidiaries),  all of which
are listed,  together with their respective  states of incorporation  and direct
and indirect  beneficial owners, on NMBT Schedule 2.01(a), is a corporation duly
organized,  validly existing and in good standing under the laws of the state of
its  incorporation,  qualified  to  transact  business  under  the  laws  of all
jurisdictions  where it  transacts  business,  except where the failure to be so
qualified is not reasonably be expected to have a material adverse effect on (i)
the business,  results of operations,  assets or financial condition of NMBT and
its subsidiaries on a consolidated basis, or (ii) the ability of NMBT to perform
its obligations under, and to consummate the transactions  contemplated by, this
Agreement ("NMBT Material  Adverse  Effect").  However,  a NMBT Material Adverse
Effect or NMBT Material  Adverse  Change (as defined at Section 2.03 below) will
not include a change resulting from a change in law, rule, regulation, generally
accepted or regulatory  accounting  principle or other matter affecting  banking
institutions  or their holding  companies  generally or from charges or expenses
incident to the  Reorganization.  Each of NMBT and its nonbank  subsidiaries has
all  corporate  power  and  authority  and all  material  licenses,  franchises,
certificates,  permits and other governmental  authorizations  which are legally
required to own and lease its properties and assets,  to occupy its premises and
to engage in its business and  activities as presently  engaged in, and each has
complied in all material  respects with all  applicable  laws,  regulations  and
orders.

       (b) NMBT is registered  as a bank holding  company under the Bank Holding
Company Act of 1956, as amended ("BHCA").

       (c) NMBT or one of its subsidiaries is the holder and beneficial owner of
all of the  outstanding  capital  stock of all of  NMBT's  direct  and  indirect
nonbank subsidiaries.

       (d) (1) The authorized capital stock of NMBT consists of 8,000,000 shares
of Common Stock, par value $0.01 per share, of which 2,668,558 shares are issued
and outstanding as of the date hereof,  and 2,000,000 shares of Serial Preferred
Stock,  par value $0.01 per share,  of which no shares are issued or outstanding
as of the date hereof. All issued and outstanding shares of the capital stock of
NMBT and of each of its nonbank  subsidiaries  have been fully  paid,  were duly
authorized and validly issued,  are  nonassessable and have been issued pursuant
to an effective  registration  statement  under the  Securities  Act of 1933, as
amended (the  "Securities  Act") or an appropriate  exemption from  registration
under the  Securities  Act and were not issued in  violation  of the  preemptive
rights of any shareholder.

              (2)  Except  as  set  forth  in  Section  2.01(d)(1),  all  Equity
Securities  (as  defined at Section  2.01(d)(4)  below) of NMBT and its  nonbank
subsidiaries outstanding,  in existence, the subject of an agreement or reserved
for  issuance  ("Current  Equity  Securities"),  and all rights or  entitlements
appurtenant  to, based upon,  derived from or valued based on the performance or
value of Equity Securities of NMBT outstanding,  in existence, the subject of an
agreement or reserved for issuance  ("Equity  Based  Rights") are listed on NMBT
Schedule  2.01(d)(2) and all  significant  information  relating to such Current
Equity Securities (other than Common Stock) and Equity Based Rights is listed on
NMBT Schedule 2.01(d)(2) including without limitation, where applicable, name of
holder,  address  and  relationship  to  NMBT  if not an  employee  of NMBT or a
subsidiary,  date of grant, award or issuance,  expiration dates, vesting dates,
the NMBT  Stock  Plan (as  defined  in Section  2.01(d)(3)  below)  under  which
granted,  awarded or issued, any intended  qualification or  nonqualification or
other status under the Code,  those  Current  Equity  Securities or Equity Based
Rights granted in

                                        A-8

<PAGE>



tandem with other Current  Equity  Securities  or Equity Based Rights,  exercise
price,  number of shares,  valuation formula and performance  goals. All Current
Equity  Securities  have been (to the extent  such is  capital  stock or similar
equity  interest) fully paid,  were duly authorized and validly issued,  are (to
the extent such is capital stock or similar equity interest)  nonassessable  and
have been  issued  pursuant to an  effective  registration  statement  under the
Securities  Act  or  an  appropriate   exemption  from  registration  under  the
Securities Act and were not issued in violation of the preemptive  rights of any
shareholder.

              (3) All agreements,  contracts,  plans and  arrangements,  whether
oral or  written  or  formal  or  informal,  pursuant  to which  Current  Equity
Securities  or Equity  Based  Rights  were  granted,  awarded or issued or which
provide for the  granting,  awarding or issuance of Equity  Securities or Equity
Based  Rights or are  relevant in any fashion to Current  Equity  Securities  or
Equity Based Rights ("NMBT Stock Plan") are listed on NMBT Schedule  2.01(d)(3).
All NMBT Stock Plans constituting a compensatory  contract,  plan or arrangement
("NMBT  Stock  Compensation  Plan"),   including  all  amendments  thereto,  are
separately identified on NMBT Schedule 2.01(d)(3) and have been duly approved by
the shareholders of NMBT where required by applicable law.

              (4) "Equity  Securities"  of an issuer means (i) the capital stock
or other equity  securities  or equity  interests of such issuer,  (ii) options,
warrants, scrip, interests in, rights (including preemptive rights) to subscribe
to,  purchase or acquire,  calls on or commitments  of any character  whatsoever
relating to, or  securities  or rights  convertible  into or  exchangeable  for,
capital stock or other equity  securities or equity interests or any security or
right  convertible  into or  exchangeable  for the capital stock or other equity
security or equity interests of such issuer,  and (iii) contracts,  commitments,
obligations,  agreements,  understandings  or arrangements  entitling  anyone to
acquire  from the  issuer,  or by which such  issuer is or may  become  bound to
issue, capital stock or other equity security or equity interest or any security
or right  convertible into or exchangeable for the capital stock or other equity
security or equity interest of such issuer.

       (e) NMBT CORP owns a bank  subsidiary  named "NMBT"  ("Bank").  NMBT CORP
owns no bank  subsidiary  other than Bank  ("bank" is hereby  defined to include
commercial banks,  savings banks,  private banks,  trust companies,  savings and
loan  associations,  building  and loan  associations  and similar  institutions
receiving  deposits and making loans).  Bank is a bank duly  organized,  validly
existing,  and in  good  standing  under  the  laws of the  jurisdiction  of its
organization  and is  qualified  to  transact  business  under  the  laws of all
jurisdictions  where it  transacts  business,  except where the failure to be so
qualified is not reasonably be expected to have a NMBT Material  Adverse Effect.
Bank is duly  authorized to conduct all  activities and exercise all powers of a
commercial bank  contemplated by the laws of its  jurisdiction of  organization.
Bank is an insured bank as defined in the Federal Deposit Insurance Act, and has
all  corporate  power  and  authority  and all  material  licenses,  franchises,
certificates,  permits and other governmental  authorizations  which are legally
required to own and lease its properties and assets, to occupy its premises, and
to engage in its  business  and  activities  as  presently  engaged  in, and has
complied in all material  respects with all  applicable  laws,  regulations  and
orders.

       (f) The authorized and outstanding  capital stock of Bank is as set forth
on NMBT Schedule 2.01(f).  NMBT is the holder and beneficial owner of all of the
issued and  outstanding  Equity  Securities of Bank. All issued and  outstanding
shares of the capital stock of Bank have been fully paid,  were duly  authorized
and validly issued, are non-assessable,  and were not issued in violation of the
preemptive rights of any shareholder. All Equity Securities of Bank outstanding,
in existence, the subject of an agreement or reserved for issuance are described
in all material respects on NMBT Schedule 2.01(f).

                                        A-9

<PAGE>



       (g)  All  Equity  Securities  of its  direct  and  indirect  subsidiaries
beneficially  owned by NMBT or a  subsidiary  of NMBT are held free and clear of
any claims, liens, encumbrances or security interests.

       Section 2.02. Financial Statements. The financial statements (and related
notes and schedules  thereto)  contained in or  incorporated  by reference  into
NMBT's (a) annual report to shareholders  for the fiscal year ended December 31,
1998, (b) annual report on Form 10-K filed  pursuant to the Securities  Exchange
Act of 1934, as amended  ("Exchange Act") for the fiscal year ended December 31,
1998 and (c) quarterly  reports on Form 10-Q filed  pursuant to the Exchange Act
for the  fiscal  quarters  ended  March 31,  1999 and June 30,  1999 (the  "NMBT
Financial Statements") are true and correct in all material respects as of their
respective  dates and each fairly  presents  (subject,  in the case of unaudited
statements,  to recurring  audit  adjustments  normal in nature and amount),  in
accordance  with generally  accepted  accounting  principles,  the  consolidated
statements of condition,  income, changes in stockholders' equity and cash flows
of NMBT and its  subsidiaries at its respective date and for the period to which
it relates, except as may otherwise be described therein and except that, in the
case  of  unaudited  statements,   no  consolidated  statements  of  changes  in
stockholders'  equity are included.  The NMBT Financial Statements do not, as of
the dates thereof,  include any material  asset or omit any material  liability,
absolute  or  contingent,  or other  fact,  the  inclusion  or omission of which
renders the NMBT Financial Statements, in light of the circumstances under which
they were made, misleading in any respect.

       Section 2.03. No  Conflicts.  Except as set forth on NMBT Schedule  2.03,
NMBT and each of its  subsidiaries  is not in  violation or breach of or default
under, and has received no notice of violation, breach, revocation or threatened
or contemplated  revocation of or default or denial of approval under,  nor will
the  execution,  delivery and  performance  of this  Agreement  by NMBT,  or the
consummation   of   the   transactions   contemplated   hereby   including   the
Reorganization  by NMBT upon the terms provided herein (assuming  receipt of the
Required Consents, as that term is defined in Section 4.01),  violate,  conflict
with,  result in the breach of, constitute a default under, give rise to a claim
or right of termination,  cancellation, revocation of, or acceleration under, or
result in the creation or imposition of any lien, charge or encumbrance upon any
of the material rights, permits,  licenses,  assets or properties of NMBT or any
of its  subsidiaries or upon any of the Equity  Securities of NMBT or any of its
subsidiaries, or constitute an event which could, with the lapse of time, action
or inaction by NMBT or any of its  subsidiaries  or a third party, or the giving
of notice and failure to cure, result in any of the foregoing,  under any of the
terms, conditions or provisions, as the case may be, of:

        (i)     the  certificate  or  articles of  incorporation  or articles of
                association,  as  appropriate,  or by-laws of NMBT or any of its
                subsidiaries;

        (ii)    any  applicable  law,  statute,  rule,  ruling,   determination,
                ordinance or regulation of or agreement with any governmental or
                regulatory authority;

        (iii)   any judgment,  order,  writ, award,  injunction or decree of any
                court or other governmental authority; or

        (iv)    any material note, bond, mortgage,  indenture,  lease, policy of
                insurance or indemnity,  license,  contract,  agreement or other
                instrument;

to which NMBT or any of its  subsidiaries  is a party or by which NMBT or any of
its  subsidiaries  or any of their assets or properties  are bound or committed,
the consequences of which individually or

                                       A-10

<PAGE>



in the aggregate  could  reasonably be expected to result in a material  adverse
change in the business, results of operations,  assets or financial condition of
NMBT and its subsidiaries,  on a consolidated  basis, from that reflected in the
NMBT  Financial  Statements  as of and for the six months  ended  June 30,  1999
("NMBT  Material  Adverse   Change"),   or  enable  any  person  to  enjoin  the
transactions contemplated hereby.

       Section  2.04.   Absence  of  Undisclosed   Liabilities.   NMBT  and  its
subsidiaries  have no  liabilities,  whether  contingent or absolute,  direct or
indirect,  matured or unmatured  (including but not limited to  liabilities  for
federal,  state and local  taxes,  penalties,  assessments,  lawsuits  or claims
against NMBT or any of its subsidiaries), and no loss contingency (as defined in
Statement  of  Financial  Accounting  Standards  No.  5),  other  than (a) those
reflected in the NMBT  Financial  Statements or disclosed in the notes  thereto,
(b) commitments  made by NMBT or any of its  subsidiaries in the ordinary course
of its  business  which  are  not in the  aggregate  material  to  NMBT  and its
subsidiaries,  on a  consolidated  basis,  and (c)  liabilities  arising  in the
ordinary  course  of its  business  since  June 30,  1999,  which are not in the
aggregate material to NMBT and its subsidiaries,  on a consolidated basis. Other
than as may be set  forth on NMBT  Schedule  2.04,  neither  NMBT nor any of its
subsidiaries  has, since June 30, 1999, become obligated on any debt due in more
than one year from the date of this Agreement in excess of $100,000,  other than
intra-corporate debt and deposits received, repurchase agreements and borrowings
from the Federal Home Loan Bank of Boston entered into in the ordinary course of
business.

       Section 2.05.  Absence of Litigation;  Agreements  with Bank  Regulators.
There is no outstanding order, injunction or decree of any court or governmental
or  self-regulatory  body against or affecting  NMBT or any of its  subsidiaries
which  materially  and  adversely  affects  NMBT  and  its  subsidiaries,  on  a
consolidated  basis, and there are no actions,  arbitrations,  claims,  charges,
suits,  investigations or proceedings  (formal or informal) material to NMBT and
its  subsidiaries,  on a consolidated  basis,  pending or, to NMBT's  knowledge,
threatened,  against  or  involving  NMBT or any of its  subsidiaries  or  their
officers or directors (in their capacity as such) in law or equity or before any
court,  panel or  governmental  agency,  except as may be disclosed in the Forms
10-K  and  10-Q of NMBT  referred  to in  Section  2.02.  Neither  NMBT  nor any
subsidiary of NMBT is a party to any  agreement or  memorandum of  understanding
with,  or is a party to any  commitment  letter to, or has  submitted a board of
directors  resolution or similar  undertaking  to, or is subject to any order or
directive by, or is a recipient of any  extraordinary  supervisory  letter from,
any governmental or regulatory  authority which restricts materially the conduct
of its business,  or in any manner  relates to material  statutory or regulatory
noncompliance discovered in any regulatory  examinations,  its capital adequacy,
its  credit  or  reserve  policies  or its  management.  Neither  NMBT  nor  any
subsidiary of NMBT has been advised by any governmental or regulatory  authority
that  it  is  contemplating   issuing  or  requesting  (or  is  considering  the
appropriateness of issuing or requesting) any of the foregoing. Neither NMBT nor
any  subsidiary  of NMBT  has  failed  to  resolve  to the  satisfaction  of the
applicable  regulatory  agency any  significant  deficiencies  cited by any such
agency in its most recently completed  examination of each aspect of NMBT's or a
NMBT  subsidiary's  business nor has NMBT or any subsidiary of NMBT been advised
of any  significant  deficiencies  by any such  agency  in  connection  with any
current examination of either NMBT or a subsidiary of NMBT by any such agency.

       Section 2.06.  Brokers'  Fees.  NMBT has entered into this Agreement with
Summit as a result of direct  negotiations  without the assistance or efforts of
any finder,  broker,  financial advisor or investment banker, other than Advest,
Inc. ("Advest").  NMBT Schedule 2.06 consists of true and complete copies of all
agreements between NMBT and Advest with respect to the transactions contemplated
by this Agreement or similar transactions.

                                       A-11

<PAGE>



       Section  2.07.  Regulatory  Filings.  All  filings  made by NMBT  and its
subsidiaries  after  December  31,  1995 with the SEC and the  appropriate  bank
regulatory  authorities did not contain any untrue  statement of a material fact
and did not omit to state any  material  fact  required  to be stated  herein or
therein or necessary to make the statements  contained therein,  in light of the
circumstances  under which they were made,  not  misleading.  To the extent such
filings  were  subject to the  Securities  Act or  Exchange  Act,  such  filings
complied in all material  respects with the  Securities  Act or Exchange Act, as
appropriate,  and all applicable rules and regulations  thereunder of the SEC or
the Federal bank regulatory agency having securities regulatory jurisdiction, as
appropriate.  Each of the  financial  statements  (including  related  notes and
schedules  thereto)  contained in or incorporated by reference into such filings
are true and correct in all material  respects as of their  respective dates and
each fairly presents (subject, in the case of unaudited statements, to recurring
audit  adjustments  normal in nature and amount),  in accordance  with generally
accepted  accounting  principles,  the  consolidated  statements  of  condition,
income,  changes  in  stockholders'  equity  and  cash  flows  of  NMBT  and its
subsidiaries  at its  respective  date or for the  period  to which it  relates,
except as may  otherwise  be described  therein and except that,  in the case of
unaudited  statements,  no consolidated  statements of changes in  stockholders'
equity are included.  NMBT and its subsidiaries have since December 31, 1995, to
the extent legally required,  timely made all filings required by the Securities
Act and the Exchange Act, Federal and state banking laws and regulations and the
rules and  regulations of the NASD and any other  self-regulatory  organization,
and have paid all fees and assessments due and payable in connection therewith.

       Section 2.08.  Corporate  Action.  Assuming due execution and delivery by
Summit,  and subject to the requisite  approval by the  shareholders  of NMBT of
this  Agreement,  the  Reorganization  and the other  transactions  contemplated
hereby in accordance with NMBT's Amended and Restated Certificate  Incorporation
and the  Delaware  Law at a meeting of such  holders to be duly called and held,
NMBT has the corporate power and is duly  authorized by all necessary  corporate
action to execute, deliver and perform this Agreement. The Board of Directors of
NMBT has taken all action required by law, its Amended and Restated  Certificate
Incorporation,  its By-Laws or otherwise  (i) to  authorize  the  execution  and
delivery of this  Agreement  and (ii) for  shareholders  of NMBT to approve this
Agreement and the transactions  contemplated hereby including the Reorganization
by a simple  majority  of the shares  entitled  to vote at the  meeting  held in
accordance  with Section  4.03.  Assuming due  execution and delivery by and the
enforceability  against Summit of this Agreement,  this Agreement is a valid and
binding  agreement of NMBT  enforceable  in accordance  with its terms except as
such  enforcement  may be limited by  applicable  principles  of equity,  and by
bankruptcy, insolvency, reorganization, fraudulent transfer, moratorium or other
laws of general  applicability  presently or hereafter in effect  affecting  the
enforcement of creditors' rights generally or institutions the deposits of which
are insured by the Federal Deposit Insurance  Corporation,  or the affiliates of
such  institutions.  The Board of Directors of NMBT in authorizing the execution
of this  Agreement has determined to recommend to the  shareholders  of NMBT the
approval  of this  Agreement,  the  Reorganization  and the  other  transactions
contemplated  hereby,  subject to the proviso  appearing in the last sentence of
Section 4.03 hereof.

       Section  2.09.  Absence of  Changes.  There has not been,  since June 30,
1999,  any NMBT  Material  Adverse  Change.  Except  as may be set forth in NMBT
Schedule 2.09, neither NMBT nor any of its subsidiaries has since June 30, 1999:
(a) (i)  declared,  set  aside or paid any  dividend  or other  distribution  in
respect of its Equity Securities, other than dividends from subsidiaries to NMBT
or other subsidiaries of NMBT, an ordinary cash dividend to NMBT shareholders of
$0.10  per share or less per  fiscal  quarter  and the  dividends  provided  for
herein,  or,  (ii)  directly or  indirectly  purchased,  redeemed  or  otherwise
acquired any shares of any Equity Securities;  (b) incurred current  liabilities
since  that  date  other  than in the  ordinary  course of  business;  (c) sold,
exchanged or

                                       A-12

<PAGE>



otherwise  disposed  of any of their  assets  except in the  ordinary  course of
business; (d) made any officers' salary increase or wage increase not consistent
with past  practices,  entered  into any  employment,  consulting,  severance or
change of  control  contract  with any  present or former  director,  officer or
salaried employee, or instituted any employee or director welfare,  bonus, stock
option,  profit-sharing,   retirement,   severance  or  other  benefit  plan  or
arrangement  or modified any of the foregoing so as to increase its  obligations
thereunder in any material  respect;  (e) suffered any taking by condemnation or
eminent  domain or other  damage,  destruction  or loss in  excess  of  $50,000,
whether or not covered by insurance,  adversely affecting its business, property
or assets, or waived any rights of value in excess of $50,000;  (f) entered into
transactions  other  than  in the  ordinary  course  of  business  which  in the
aggregate exceeded $100,000;  or (g) acquired assets or capital stock of another
company of whatsoever amount, except in a fiduciary capacity or in the course of
securing or collecting loans or leases.

       Section  2.10.  Allowance  for  Credit  Losses.  At  June  30,  1999  and
thereafter the allowances  for credit losses of NMBT and its  subsidiaries  were
and are adequate in all material respects to provide for all losses on loans and
leases  outstanding  and,  to the best of NMBT's  knowledge,  the loan and lease
portfolios of NMBT in excess of such  allowances are collectible in the ordinary
course of  business.  NMBT  Schedule  2.10  constitutes  a list of all loans and
leases made by NMBT or any of its subsidiaries that have been "classified" as to
quality by any internal or external  auditor,  accountant or examiner,  and such
list is accurate and complete in all material respects.

       Section  2.11.  Taxes  and  Tax  Returns.  Neither  NMBT  nor  any of its
subsidiaries  has at any time filed a consent  pursuant to Section 341(f) of the
Code or consented to have the provisions of Section  341(f)(2) of the Code apply
to any disposition of a subsection (f) asset (as such term is defined in Section
341(f)(4)  of the Code)  owned by NMBT or any of its  subsidiaries.  None of the
property being acquired by Summit or its subsidiaries in the  Reorganization  is
property  which  Summit or its  subsidiaries  will be required to treat as being
owned by any other person pursuant to the provisions of Section 168(f)(8) of the
Internal Revenue Code of 1954, as amended and in effect immediately prior to the
enactment of the Tax Reform Act of 1986 or is "tax-exempt  use property"  within
the  meaning  of Section  168(h)(1)  of the Code.  All  amounts  required  to be
withheld have been withheld from employees by NMBT and each of its  subsidiaries
for all periods in compliance with the tax, social  security,  unemployment  and
other applicable  withholding  provisions of applicable federal, state and local
law.  All federal,  state and local  returns (as defined  below)  required to be
filed  have  been  timely  filed by NMBT and  each of its  subsidiaries  for all
periods for which returns were due,  including  with respect to employee  income
tax withholding,  social  security,  unemployment and other applicable taxes (as
defined  below),  are  accurate,  and the  amounts  shown  thereon to be due and
payable, as well as any interest,  additions,  and penalties due with respect to
completed and settled  examinations or concluded  litigation relating to NMBT or
any of its subsidiaries,  have been paid in full or adequate  provision therefor
has been included on the books of NMBT or its appropriate subsidiary. Other than
franchise tax returns filed by NMBT with the State of Delaware, neither NMBT nor
any of its  subsidiaries  is required  to file tax returns  with any state other
than the State of  Connecticut.  Provision has been made on the books of NMBT or
its appropriate  subsidiary for all unpaid taxes, whether or not disputed,  that
may become due and payable by NMBT or any of its  subsidiaries in future periods
in respect of  transactions,  sales or services  occurring or performed prior to
the date of this Agreement. Neither the Internal Revenue Service ("IRS") nor the
State  of  Connecticut  has  audited  any  income  tax  returns  of  NMBT or its
subsidiaries. Neither NMBT nor any of its subsidiaries is subject to an audit or
review of its tax returns by any state other than the State of Connecticut. NMBT
is not and has not been a United States real  property  holding  corporation  as
defined in Section  897(c)(2) of the Code during the applicable period specified
in  Section   897(c)(1)(A)(ii)  of  the  Code.  Neither  NMBT  nor  any  of  its
subsidiaries is currently a party

                                       A-13

<PAGE>



to any tax  sharing  or similar  agreement  with any third  party.  There are no
material  matters,  claims,  assessments,  examinations,  notices of deficiency,
demands  for  taxes,   refund  litigation,   proceedings,   audits  or  proposed
deficiencies pending or, to NMBT's knowledge,  threatened against NMBT or any of
its  subsidiaries,  including  a  claim  or  assessment  by any  authority  in a
jurisdiction  where NMBT or any of its  subsidiaries do not file tax returns and
NMBT or any such  subsidiary  is  subject  to  taxation,  and there have been no
waivers of statutes of  limitations  or  agreements  related to  assessments  or
collection in respect of any federal, state or local taxes. Neither NMBT nor any
of its subsidiaries has agreed to or is required to make any adjustment pursuant
to  Section  481(a)  of the Code by  reason  of a change  in  accounting  method
initiated  by NMBT or any of its  subsidiaries,  and neither NMBT nor any of its
subsidiaries  has any knowledge that the IRS has proposed any such adjustment or
change in  accounting  method.  NMBT and its  subsidiaries  have complied in all
material  respects  with all  requirements  relating to  information  reporting,
including  tax  identification  number  reporting,  and  withholding  (including
back-up  withholding)  and  other  requirements  relating  to the  reporting  of
interest,  dividends and other reportable  payments under the Code and state and
local tax laws and the regulations promulgated thereunder and other requirements
relating to reporting  under federal law including  record keeping and reporting
on monetary instruments transactions.

       For purposes of this  Agreement,  "taxes" shall mean all taxes,  charges,
fees,  levies,  penalties  or other  assessments  imposed by any  United  States
Federal, state, local, or foreign taxing authority,  including,  but not limited
to, income, excise, property, sales, transfer,  franchise, payroll, withholding,
social security or other taxes,  including any interest,  penalties or additions
attributable  thereto; and "return" shall mean any return,  report,  information
return or other documents (including any related or supporting information) with
respect to taxes.

       Section 2.12. Properties. NMBT has, directly or through its subsidiaries,
good and  marketable  title to all of its  properties  and assets,  tangible and
intangible,  including those reflected in the NMBT Financial  Statements (except
individual properties and assets disposed of since June 30, 1999 in the ordinary
course  of  business),  which  properties  and  assets  are not  subject  to any
mortgage,  pledge,  lien,  charge or encumbrance  other than as reflected in the
NMBT Financial  Statements or which in the aggregate do not materially adversely
affect or impair the operation of NMBT and its  subsidiaries  on a  consolidated
basis.  NMBT  and  each of its  subsidiaries  enjoys  peaceful  and  undisturbed
possession  under all material  leases  under which it is the lessee,  where the
failure to enjoy such  peaceful and  undisturbed  possession  would be likely to
have a NMBT  Material  Adverse  Effect,  and none of such  leases  contains  any
unusual  or  burdensome  provision  which  would be  likely  to  materially  and
adversely  affect or impair the  operations of NMBT and its  subsidiaries,  on a
consolidated basis.

       Section 2.13. Condition of Properties;  Insurance.  All real and tangible
personal  properties owned or leased by NMBT or any of its subsidiaries are in a
good state of maintenance and repair, are in good operating  condition,  subject
to normal wear and tear,  conform (as to owned  properties only) in all material
respects to all  applicable  ordinances,  regulations  and zoning laws,  and are
adequate  for the  business  conducted  by NMBT or such  subsidiary  subject  to
exceptions  which  are  not,  in  the  aggregate,   material  to  NMBT  and  its
subsidiaries,  on a  consolidated  basis.  NMBT  and  each  of its  subsidiaries
maintains insurance (with companies which, to the best of NMBT's knowledge,  are
approved by all appropriate  state  insurance  regulators to sell such insurance
where purchased by NMBT) against loss relating to such properties and such other
risks as companies engaged in similar business located in Connecticut, would, in
accordance with good business practice,  be customarily insured in amounts which
are customary,  usual and prudent for corporations or banks, as the case may be,
of their size. Such policies are in full force and effect and are carried

                                       A-14

<PAGE>



in an amount and form and are otherwise adequate to protect NMBT and each of its
subsidiaries  from  any  adverse  loss  resulting  from  risks  and  liabilities
reasonably  foreseeable  at the date hereof,  and are disclosed on NMBT Schedule
2.13.  All  material  claims  thereunder  have  been  filed in a due and  timely
fashion.  Since December 31, 1994,  neither NMBT nor any of its subsidiaries has
been refused  insurance  for which it has applied or had any policy of insurance
terminated  (other than at its request) nor has NMBT or any subsidiary  received
notice from any insurance  carrier that (i) such  insurance  will be canceled or
that  coverage  thereunder  will be reduced or  eliminated or (ii) premium costs
with respect to such insurance will be increased,  other than premium  increases
in the ordinary course of business applicable on their terms to all insureds.

       Section 2.14.       Contracts.

       (a) Except as set forth in NMBT Schedule 2.14(a), neither NMBT nor any of
its  subsidiaries  is a party to and  neither  they nor any of their  assets are
bound by any written or oral lease or license with respect to any property, real
or personal,  as tenant or licensee involving an annual  consideration in excess
of $50,000.

       (b) Except as set forth in NMBT Schedule 2.14(b), neither NMBT nor any of
its  subsidiaries  is a party to and  neither  they nor any of their  assets are
bound by any written or oral: (i) employment or severance  contract  (including,
without  limitation,  any NMBT bargaining  contract or union agreement) or other
agreement  with any  director  or any  officer or other  employee of NMBT or any
subsidiary,  the  benefits  of which are  contingent,  or the terms of which are
materially altered,  upon the occurrence of a transaction  involving NMBT or any
of its  subsidiaries  of the nature  contemplated by this Agreement which is not
terminable without penalty by NMBT or a subsidiary,  as appropriate,  on 60 days
or less notice;  (ii) contract or commitment for capital  expenditures in excess
of $50,000 for any one project or in excess of $100,000 in the aggregate for all
projects;  (iii) contract or commitment whether for the purchase of materials or
supplies or for the performance of services involving consideration in excess of
$50,000  (including  advertising  and  consulting  agreements,  data  processing
agreements, and retainer agreements with attorneys,  accountants,  actuaries, or
other  professionals);  (iv)  contract or option to purchase or sell any real or
personal property, other than to sell OREO property,  involving consideration in
excess of $50,000; (v) agreement or plan, including any stock option plan, stock
appreciation  rights plan,  restricted  stock plan,  stock purchase plan, or any
other  non-qualified  compensation  plan,  any of the  benefits of which will be
increased,  or the vesting of the benefits of which will be accelerated,  by the
occurrence  of any of the  transactions  contemplated  by this  Agreement or the
value of any of the benefits of which will be  calculated on the basis of any of
the  transactions  contemplated  by this  Agreement,  (vi) agreement  containing
covenants that limit the ability of NMBT or any of its  subsidiaries  to compete
in any line of business or with any person,  or that involve any  restriction on
the  geographic  area in which or method by which NMBT  (including any successor
thereof) or any of its subsidiaries may carry on its business (other than as may
be required by law or any regulatory agency), (vii) agreement which by its terms
limits  the  payment of  dividends  by NMBT or any of its  subsidiaries,  (viii)
contract  (other  than  this  Agreement)  limiting  the  freedom  of NMBT or its
subsidiaries  to  engage  in  any  type  of  banking  or  bank-related  business
permissible  under law; (ix) contract,  plan or  arrangement  which provides for
payments of benefits  payable to any participant  therein or party thereto,  and
which  might  render any portion of any such  payments  or  benefits  subject to
disallowance  of deduction  therefor as a result of the  application  of Section
280G of the Code or (x) any other contract  material to the business of NMBT and
its subsidiaries,  on a consolidated  basis, and not made in the ordinary course
of business.

       (c) Neither NMBT nor any of its  subsidiaries  is a party to or otherwise
bound  by  any  contract,   agreement,  plan,  lease,  license,   commitment  or
undertaking which, in the reasonable

                                       A-15

<PAGE>



opinion of management of NMBT, is materially adverse, onerous, or harmful to any
aspect of the business of NMBT and its subsidiaries, on a consolidated basis.


       Section 2.15.       Pension and Benefit Plans.

       (a)  Neither  NMBT  nor any of its  subsidiaries  maintains  an  employee
pension  benefit  plan,  within  the  meaning of  Section  3(2) of the  Employee
Retirement  Income Security Act of 1974, as amended  ("ERISA"),  or has made any
contributions  to any  such  employee  pension  benefit  plan  maintained  after
December 31, 1995, except employee pension benefit plans listed in NMBT Schedule
2.15(a)  (individually a "NMBT Pension Plan" and  collectively the "NMBT Pension
Plans").  In its present form each NMBT  Pension  Plan  complies in all material
respects with all applicable  requirements  under ERISA and the Code (except for
amendments,  if any, required by legislative or regulatory changes but for which
the applicable remedial amendment period has not yet expired). Each NMBT Pension
Plan which is intended to be  qualified  and exempt  under  Sections  401(a) and
501(a) of the Code,  and the trust  created  thereunder,  are so  qualified  and
exempt  and NMBT or the  subsidiary  whose  employees  are  covered by such NMBT
Pension Plan has received from the IRS a determination  letter or opinion letter
to that  effect and such  determination  letter or  opinion  letter may still be
relied on. No event has  occurred  and there has been no  omission or failure to
act which would adversely affect such qualification or exemption (other than the
failure of NMBT or a NMBT subsidiary, or prototype plan sponsors, if applicable,
to adopt amendments,  if any, required by legislative or regulatory  changes but
for which the applicable  remedial  amendment period has not yet expired).  Each
NMBT Pension Plan has been administered and communicated to the participants and
beneficiaries  in  accordance  with its terms and  ERISA,  except  for  defects,
failures or omissions in  administration  or operation that could not reasonably
be expected to result in a material adverse effect. No employee or agent of NMBT
or any subsidiary whose employees are covered by a NMBT Pension Plan has engaged
in any action or failed to act in such manner  that,  as a result of such action
or failure, (i) the IRS could revoke, or refuse to issue (as the case may be), a
favorable  determination  as to such NMBT Pension Plan's  qualification  and the
associated  trust's  exemption (other than the failure to adopt  amendments,  if
any, required by legislative or regulatory  changes but for which the applicable
remedial  amendment period has not yet expired) or impose any material liability
or material  penalty under the Code, or (ii) a participant  or  beneficiary or a
nonparticipating  employee has been denied benefits properly due under such NMBT
Pension  Plan in a manner  that  could  reasonably  be  expected  to result in a
material liability being imposed on NMBT or any NMBT subsidiary. No NMBT Pension
Plan is  currently  or has at any time after  December  31, 1995 been subject to
Section 412 of the Code or Title IV of ERISA. To NMBT's knowledge, no person has
engaged  in any  prohibited  transaction  involving  any  NMBT  Pension  Plan or
associated  trust  within the meaning of Section 406 of ERISA or Section 4975 of
the Code. There are no pending, or to NMBT's knowledge, threatened claims (other
than  routine  claims  for  benefits)  against  the  NMBT  Pension  Plans or any
fiduciary  thereof  which would  subject  NMBT or any of its  subsidiaries  to a
material  liability.  All reports,  filings,  returns and  disclosures and other
communications  relating to any NMBT Pension Plan which have been required to be
made  to the  participants  and  beneficiaries,  the  SEC,  the  IRS,  the  U.S.
Department  of Labor or any  other  governmental  agency  pursuant  to the Code,
ERISA,  or other  applicable  statute or  regulation  have been made in a timely
manner and all such reports,  communications,  filings,  returns and disclosures
were true and correct in all material respects.  "ERISA Affiliate" where used in
this Agreement means any trade or business (whether or not  incorporated)  which
is a member  of a group of which  NMBT is a  member  and  which is under  common
control  within the meaning of Section 414 of the Code.  Neither NMBT nor any of
its subsidiaries has any material  liability under ERISA or the Code as a result
of its being a member of a group described in Sections  414(b),  (c), (m) or (o)
of the Code.

                                       A-16

<PAGE>



There  are  no  unfunded  benefit  or  pension  plans  or  arrangements,  or any
individual  agreements  whether  qualified  or not,  to which NMBT or any of its
subsidiaries  or ERISA  Affiliates  has any  obligation to  contribute.  No NMBT
Pension Plan is a "multiemployer  plan" as that term is defined in Section 3(37)
of ERISA. There has been no change in control of any NMBT Pension Plan.

       (b)  All  bonus,  deferred  compensation,   profit-sharing,   retirement,
pension,  stock  option,  stock  award  and stock  purchase  plans and all other
employee  benefit,  health  and  welfare  plans,   arrangements  or  agreements,
including  without  limitation  the NMBT Stock  Compensation  Plans and medical,
major medical,  disability,  life  insurance or dental plans covering  employees
generally,  other than the NMBT Pension Plans,  maintained by NMBT or any of its
subsidiaries  with an  annual  cost in  excess of  $50,000  (collectively  "NMBT
Benefit  Plans") are listed in NMBT Schedule  2.15(b)  (unless already listed in
NMBT Schedule  2.15(a) or NMBT Schedule  2.01(d)(3))  and comply in all material
respects with all applicable  requirements  imposed by the  Securities  Act, the
Exchange  Act,  ERISA,  the  Code,  and all  applicable  rules  and  regulations
thereunder.  The NMBT Benefit Plans have been  administered  and communicated to
the  participants  and  beneficiaries  in accordance with their terms and ERISA,
except for defects,  failures or omissions in  administration or operations that
could not  reasonably  be expected to result in a material  adverse  effect.  No
employee or agent of NMBT or any of its  subsidiaries  has engaged in any action
or failed to act in such manner that,  as a result of such action or failure,  a
participant  or  beneficiary  or a  nonparticipating  employee  has been  denied
benefits  properly  due  under the NMBT  Benefit  Plans in a manner  that  could
reasonably be expected to result in a material  liability  being imposed on NMBT
or any NMBT subsidiary. There are no pending, or to NMBT's knowledge, threatened
claims (other than routine  claims for benefits)  against the NMBT Benefit Plans
which would subject NMBT or any of its subsidiaries to a material liability. Any
trust which is intended to be  tax-exempt  has received a  determination  letter
from the IRS to that  effect and no event has  occurred  which  would  adversely
affect such exemption. All reports, filings, returns and disclosures relating to
the  NMBT  Benefit  Plans   required  to  be  made  to  the   participants   and
beneficiaries,  the SEC,  the IRS,  the U.S.  Department  of Labor and any other
governmental  agency pursuant to the Code, ERISA, or other applicable statute or
regulation,  if any,  have been made in a timely  manner  and all such  reports,
filings, returns and disclosures were true and correct in all material respects.

       (c) There is no pending or, to NMBT's knowledge,  threatened  litigation,
administrative  action or  proceeding  relating to any NMBT Benefit Plan or NMBT
Pension  Plan.  There  has been no  announcement  or  commitment  by NMBT or any
subsidiary  of NMBT to create an  additional  NMBT  Benefit Plan or NMBT Pension
Plan,  or to  amend a NMBT  Benefit  Plan  or  NMBT  Pension  Plan,  except  for
amendments  required by applicable law, which would materially increase the cost
of such  NMBT  Benefit  Plan or NMBT  Pension  Plan.  Except  for any  plans  or
amendments  expressly  described  on NMBT  Schedule  2.01(d)(3),  NMBT  Schedule
2.15(a) or NMBT  Schedule  2.15(b),  NMBT and its  subsidiaries  do not have any
obligations  for  post-retirement  or  post-employment  benefits  under any NMBT
Benefit Plan  (exclusive of any coverage  mandated by the  Consolidated  Omnibus
Reconciliation  Act of 1986  ("COBRA")  or any similar  state law that cannot be
amended or terminated  upon more than sixty (60) days' notice without  incurring
any liability  thereunder.  NMBT Schedule 2.15(c) consists of the following with
respect  to each  NMBT  Benefit  Plan  and  NMBT  Pension  Plan,  to the  extent
applicable: (A) the most recent annual report on the applicable form of the Form
5500 series  filed with the IRS with all the  attachments  filed,  (B) such NMBT
Benefit Plan or NMBT Pension Plan,  including all amendments  thereto,  (C) each
trust  agreement  and  insurance  contract  relating  to  such  plan,  including
amendments thereto,  (D) the most recent summary plan description for such plan,
including  amendments  thereto,  if the plan is subject to Title I of ERISA, and
(E) the most  recent  determination  letter  issued  by the IRS if such  plan is
qualified under Section 401(a) of the Code.

                                       A-17

<PAGE>



       Section 2.16.  Fidelity Bonds.  Since December 31, 1992, NMBT and each of
its  subsidiaries  has  continuously  maintained  fidelity  bonds  insuring them
against acts of dishonesty in such amounts as are  customary,  usual and prudent
for organizations of its size and business.  All material claims thereunder have
been filed in a due and timely  fashion.  Since December 31, 1992, the aggregate
amount of all claims under such bonds has not exceeded the policy limits of such
bonds (excluding,  except in the case of excess coverage, an amount equal to the
deductible in effect with respect to the claim,  which such  deductible  did not
exceed  $150,000) and neither NMBT nor any of its  subsidiaries  is aware of any
facts  which  would  form the  basis  of a claim  or  claims  under  such  bonds
aggregating  in excess of the  applicable  deductible  amounts under such bonds.
Neither  NMBT  nor any of its  subsidiaries  has  reason  to  believe  that  its
respective fidelity coverage will not be renewed by its carrier on substantially
the same terms as the existing  coverage,  except for possible premium increases
unrelated to NMBT's and its subsidiaries' past claim experience.

       Section  2.17.  Labor  Matters.  Hours  worked  by and  payment  made  to
employees of NMBT and each of its subsidiaries have not been in violation of the
Fair Labor  Standards Act or any applicable  law dealing with such matters;  and
all payments due from NMBT and each of its  subsidiaries  on account of employee
health and welfare  insurance  have been paid or accrued as a  liability  on the
books  of NMBT or its  appropriate  subsidiary.  NMBT  is in  compliance  in all
material respects with all other laws and regulations relating to the employment
of labor,  including all such laws and regulations  relating to NMBT bargaining,
discrimination,  civil rights,  safety and health,  plant closing (including the
Worker Adjustment  Retraining and Notification Act),  workers'  compensation and
the collection and payment of withholding and Social Security and similar taxes.
No labor  dispute,  strike or other work stoppage has occurred and is continuing
or is  to  its  knowledge  threatened  with  respect  to  NMBT  or  any  of  its
subsidiaries.  Since  December  31,  1994,  no  employee  of  NMBT or any of its
subsidiaries  has been  terminated,  suspended,  disciplined or dismissed  under
circumstances  which could constitute a material claim, suit, action,  complaint
or proceeding likely to result in a material liability.  No employees of NMBT or
any  of its  subsidiaries  are  unionized  nor  has  union  representation  been
requested  by any group of  employees  or any other  person  within the last two
years.  There are no organizing  activities  involving NMBT pending with, or, to
the  knowledge  of NMBT,  threatened  by,  any  labor  organization  or group of
employees of NMBT.

       Section 2.18. Books and Records. The minute books of NMBT and each of its
subsidiaries  contain  complete and accurate  records of and fairly  reflect all
actions taken at all meetings of the shareholders and of the boards of directors
and committees  thereof and accurately reflect all other corporate action of the
shareholders and the boards of directors and each committee  thereof.  The books
and records of NMBT and each of its subsidiaries  fairly and accurately  reflect
the  transactions  to which NMBT and each of its  subsidiaries  is or has been a
party or by which  their  properties  are  subject or bound,  and such books and
records have been properly kept and maintained.

       Section 2.19.  Concentrations  of Credit. No customer or affiliated group
of customers (a) is owed by NMBT or any  subsidiary of NMBT an aggregate  amount
equal to more than 5% of the  shareholders'  equity  of NMBT or such  subsidiary
(including deposits, other debts and contingent liabilities) or (b) owes to NMBT
or any of its  subsidiaries  an  aggregate  amount  equal to more than 5% of the
shareholders'  equity  of NMBT or such  subsidiary  (including  loans  and other
debts, guarantees of debts of third parties, and other contingent liabilities).

       Section  2.20.  Trademarks  and  Copyrights.  Neither NMBT nor any of its
subsidiaries  has received  information  that the manner in which NMBT or any of
its subsidiaries conducts its business including its current use of any material
trademark,  trade name,  service mark or copyright  could be in violation of the
asserted rights of others in any trademark,  trade name, service mark, copyright
or

                                       A-18

<PAGE>



other proprietary right.

       Section 2.21. Equity Interests.  Neither NMBT nor any of its subsidiaries
owns,  directly or indirectly,  except for the equity  interests of NMBT in Bank
and  the  equity  interests  disclosed  on NMBT  Schedule  2.01(a),  any  equity
interest, other than by virtue of a security interest securing an obligation not
presently in default,  in any bank,  corporation,  partnership  or other entity,
except:  (a) in a fiduciary  capacity;  or (b) an  interest  valued at less than
$25,000 acquired in connection with a foreclosure or debt previously contracted.
None of the investments  reflected in the consolidated  balance sheet of NMBT as
of  June  30,  1999,  and  none  of  such  investments  made by it or any of its
subsidiaries since June 30, 1999, is subject to any restriction  (contractual or
statutory),  other than applicable securities laws, that would materially impair
the  ability of the entity  holding  such  investment  freely to dispose of such
investment at any time, except to the extent any such investments are pledged in
the  ordinary   course  of  business   (including  in  connection  with  hedging
arrangements  or programs or reverse  repurchase  arrangements)  consistent with
prudent  banking  practice  to  secure   obligations  of  NMBT  or  any  of  its
subsidiaries.

       Section 2.22.       Environmental Matters.

       (a) Except as disclosed on NMBT  Schedule  2.22 or as may be disclosed in
the Forms 10-K and 10-Q of NMBT referred to in Section 2.02 hereof:

              (1) To NMBT's  actual  knowledge,  and except in  compliance  with
applicable  law, no Hazardous  Substances  (as  hereinafter  defined)  have been
stored, treated, dumped, spilled,  disposed,  discharged,  released or deposited
at, under or on (1) any property now owned, occupied,  leased or held or managed
in a representative or fiduciary capacity ("Present Property") by NMBT or any of
its subsidiaries, (2) any property previously owned, occupied, leased or held or
managed in a representative or fiduciary capacity ("Former Property") by NMBT or
any of its subsidiaries during the time of such previous  ownership,  occupancy,
lease;  holding or management or (3) any Participation  Facility (as hereinafter
defined)  during the time that NMBT or any of its  subsidiaries  participated in
the  management  of, or may be deemed to be or to have been an owner or operator
of, such Participation Facility;

              (2) Except in compliance with applicable law, neither NMBT nor any
of its  subsidiaries has disposed of, or arranged for the disposal of, Hazardous
Substances from any Present Property, Former Property or Participation Facility,
and to NMBT's actual knowledge, and except in compliance with applicable law, no
owner or operator of a Participation  Facility  disposed of, or arranged for the
disposal of, Hazardous Substances from a Participation  Facility during the time
that NMBT or any of its  subsidiaries  participated in the management of, or may
be deemed  to be or to have been an owner or  operator  of,  such  Participation
Facility;

              (3) To NMBT's actual knowledge,  no Hazardous Substances have been
stored, treated, dumped, spilled,  disposed,  discharged,  released or deposited
at, under or on any Loan Property (as hereinafter  defined),  nor is there, with
respect to any such Loan  Property,  any  violation of  environmental  law which
could  materially  adversely affect the value of such Loan Property to an extent
which could prevent or delay NMBT or any of its subsidiaries from recovering the
full value of its loan in the event of a foreclosure on such Loan Property.

       (b) Neither NMBT nor any  subsidiary  (i) is aware of any  investigations
contemplated,  pending or completed by any  environmental  regulatory  authority
with  respect  to any  Present  Property,  Former  Property,  Loan  Property  or
Participation Facility, (ii) has received any information

                                       A-19

<PAGE>



requests from any environmental  regulatory authority,  or (iii) been named as a
potentially responsible or liable party in any Superfund,  Resource Conservation
and Recovery Act, Toxic Substances  Control Act or Clean Water Act proceeding or
other equivalent state or federal proceeding.

       (c) As used in this Agreement,  (a)  "Participation  Facility" shall mean
any property or facility of which the  relevant  person or entity (i) has at any
time  participated in the management or (ii) may be deemed to be or to have been
an owner or operator,  (b) "Loan Property" shall mean any real property in which
the  relevant  person or entity holds a security  interest in an amount  greater
than  $50,000  and (c)  "Hazardous  Substances"  shall  mean  (i) any  flammable
substances,  explosives,  radioactive materials,  hazardous materials, hazardous
substances,  hazardous  wastes,  toxic  substances,  pollutants or  contaminants
defined as such in any applicable Federal or state law or regulation relating to
pollution or protection of human health or the environment  (including,  without
limitation,  ambient or indoor air, surface water, groundwater,  land surface or
subsurface strata) and (ii) friable asbestos,  polychlorinated  biphenyls,  urea
formaldehyde, and petroleum and petroleum-containing products and wastes.

       Section 2.23.  Accounting,  Tax and Regulatory Matters.  Neither NMBT nor
any of its  subsidiaries  has  taken or  agreed  to take any  action  or has any
knowledge of any fact or  circumstance  that would (i) prevent the  transactions
contemplated  hereby from qualifying as a  reorganization  within the meaning of
Section  368(a) of the Code, or (ii)  materially  impede or delay receipt of any
approval  referred to in Section 4.01 or the  consummation  of the  transactions
contemplated by this Agreement.

       Section 2.24.       Interest of Management and Affiliates.

       (a) All loans  presently on the books of NMBT or any of its  subsidiaries
to present or former  directors or executive  officers of NMBT or any subsidiary
of NMBT, or their associates,  or any members of their immediate families,  have
been made in the ordinary  course of business and on the same terms and interest
rates as those  prevailing  for comparable  transactions  with others and do not
involve  more than the normal risk of  repayment  or present  other  unfavorable
features.

       (b)  Except as set forth  and  described  in NMBT  Schedule  2.24(b),  no
present or former officer or director of NMBT or any of its  subsidiaries or any
Associated Person (as defined in Section 2.24(d) below):

              (1) has any interest in any property,  real or personal,  tangible
or  intangible,  used in or  pertaining  to the  business  of NMBT or any of its
subsidiaries except for the normal rights of a shareholder;

              (2)  has an  agreement,  understanding,  contract,  commitment  or
pending transaction relating to the purchase,  sale or lease of real or personal
property, goods, materials, supplies or services, whether or not in the ordinary
course of business, with NMBT or any of its subsidiaries ("Insider Agreements");

              (3)  has  received  from  NMBT  or  any of  its  subsidiaries  any
commitment, whether written or oral, to lend any funds to any such person;

              (4) is owed any amounts by NMBT or any of its subsidiaries  except
for deposits taken in the ordinary course of business and amounts due for normal
compensation  or  reimbursement  of  expenses  incurred  in  furtherance  of the
business of such person's employer and reimbursable

                                       A-20

<PAGE>



according to a policy of NMBT or such subsidiary,  as appropriate,  as in effect
immediately prior to the date hereof ("Insider Indebtedness").

       (c) The  consummation of the  transactions  contemplated  hereby will not
(either alone, or upon the occurrence of any act or event, the lapse of time, or
the giving of notice and failure to cure)  result in any payment  (severance  or
other)  or  provision  of a  benefit  becoming  due  from  NMBT  or  any  of its
subsidiaries  or any  successor or assign  thereof to any  director,  officer or
employee of NMBT or any of its  subsidiaries  or any successor or assign of such
subsidiary,  other  than  payments  and  benefits  due under the  contracts  and
agreements set forth in NMBT Schedule 2.14(a).

       (d)  "Associated  Person"  means  (i)  any  holder  of 10% of more of the
outstanding  shares of NMBT Stock, (ii) any associate (as "associate" is defined
at Rule  14a-1(a)  of the SEC) or  relative  ("relative"  for  purposes  of this
Section  2.24 is  defined as any person  having a family  relationship  with the
subject  person,  as  family  relationship  is  defined  in the  Instruction  to
Paragraph  401(d) of Regulation S-K of the SEC) of a present or former  director
or  executive  officer  of NMBT or any of its  subsidiaries,  (iii)  any  entity
controlled,  directly or indirectly,  individually  or in the aggregate,  by any
present  or  former  director  or  executive  officer  of  NMBT  or  any  of its
subsidiaries  or any  relative or  associate of any of such persons and (iv) any
entity 25% or more or the equity interests of which are owned individually or in
the aggregate by any present or former director or executive  officer of NMBT or
any of its subsidiaries or any relative or associate of any of such persons.

       Section 2.25  Registration  Obligations.  Neither the NMBT nor any of its
subsidiaries is under any contractual  obligation,  contingent or otherwise,  to
register any of its securities under the Securities Act.

       Section  2.26  Corporate  Documents.   The  articles  or  certificate  of
incorporation  and  by-laws,  as  amended  to  date,  of NMBT and of each of its
subsidiaries  previously  provided to Summit constitute true and complete copies
of all articles or  certificates  of  incorporation  and by-laws,  as amended to
date,  which are  currently in full force and effect for NMBT and of each of its
subsidiaries.

       Section  2.27  Community  Reinvestment  Act  Compliance.   NMBT  and  its
subsidiaries are in substantial compliance with the applicable provisions of the
Community Reinvestment Act of 1977 and the regulations  promulgated  thereunder,
and received a CRA rating of at least  satisfactory  as of their last  completed
examination.  As of the date of this Agreement, NMBT has not been advised of the
existence of any fact or circumstance or set of facts or circumstances which, if
true, would cause NMBT or any subsidiary to fail to be in substantial compliance
with such provisions.

       Section 2.28  Business of NMBT.  Since June 30, 1999,  NMBT has conducted
its business only in the ordinary  course.  For purposes of the foregoing,  NMBT
has not, since June 30, 1999,  controlled  expenses  through (i)  elimination of
employee  benefits,  (ii)  deferral of routine  maintenance  of real property or
leased premises,  (iii)  elimination of reserves where the liability  related to
such reserve has remained,  (iv) reduction of capital improvements from previous
levels,  (v)  failure  to  depreciate  capital  assets in  accordance  with past
practice or to eliminate capital assets which are no longer used in the business
of NMBT, (vi) capitalized loan production expenses other than in accordance with
Statement  of  Financial  Accounting  Standard  No.  91, or (vii)  extraordinary
reduction or deferral of ordinary or necessary expenses.

       Section 2.29        Interest Rate Risk Management Instruments.


                                       A-21

<PAGE>



       (a) Set forth on NMBT Schedule 2.29(a) is a list as of the date hereof of
all interest rate swaps, caps, floors and option agreements,  and other interest
rate risk management  arrangements to which NMBT or any of its subsidiaries is a
party or by which any of their properties or assets may be bound.

       (b) All such interest rate swaps,  caps, floors and option agreements and
other  interest rate risk  management  arrangements  to which NMBT or any of its
subsidiaries  is a party or by which any of their  properties  or assets  may be
bound were entered into the ordinary  course of business and, in accordance with
prudent  banking  practice and  applicable  rules,  regulations  and policies of
regulatory  authorities and with  counterparties  believed,  at the time entered
into and at the date of this  Agreement,  to be financially  responsible and are
legal,  valid and binding  obligations  of NMBT or a subsidiary  and are in full
force and effect.  NMBT and each of its  subsidiaries  has duly performed in all
material  respects  all of its  obligations  thereunder  to the extent that such
obligations  to  perform  have  accrued,  and  there are no  material  breaches,
violations  or  defaults  or  allegations  or  assertions  of such by any  party
thereunder.

       Section  2.30.  Takeover  Laws;  Dissenters'  Rights.  NMBT has taken all
action required to be taken by it in order to exempt this Agreement,  the Option
Agreement and the  transactions  contemplated  by each from, and this Agreement,
the Option Agreement and the transactions  contemplated by each are exempt from,
the requirements of any "moratorium",  "control share", "fair price", "affiliate
transaction", "control transaction", business combination" or other antitakeover
(i) laws and  regulations  of the State of Delaware,  or (ii)  provisions in the
Amended and Restated Certificate of Incorporation or By-Laws of NMBT. Holders of
NMBT Stock do not have  dissenters' or appraisal  rights in connection  with the
execution  of this  Agreement  or the  consummation  of any of the  transactions
contemplated hereby.

       Section 2.31.  Year 2000  Compliant.  To the best  knowledge of NMBT, all
material  computer software and hardware owned or licensed by NMBT or any of its
subsidiaries  is,  or NMBT  has  taken  all  required  steps  to be,  Year  2000
compliant,  which,  for  purposes  of this  Agreement,  shall mean that the data
outside the range 1900-1999 will be correctly processed in any level of computer
hardware  or  software  including,  but not  limited  to,  microcode,  firmware,
applications programs, files and databases. All material computer software owned
or licensed by NMBT is, or NMBT has taken steps (including  obtaining warranties
from the  vendors  thereof  in respect of  compliance)  to ensure  that all such
computer  software  will be,  designed to be used prior to, during and after the
calendar  year 2000 AD and such  software  will  operate  during  each such time
period,  without error relating to date data,  specifically  including any error
relating  to,  or the  product  of,  date  data that  represents  or  references
different centuries or more than one century.


                                  ARTICLE III.
                    REPRESENTATIONS AND WARRANTIES OF SUMMIT

       Summit represents and warrants to NMBT as follows:

       Section 3.01.       Organization, Capital Stock.

       (a) Summit is a corporation duly organized,  validly existing and in good
standing under the laws of the State of New Jersey with authorized capital stock
consisting of (i) 390,000,000  shares of Common Stock, par value $.80 per share,
with the Summit Rights attached  thereto  pursuant to the Rights  Agreement,  of
which 177,061,084 shares were issued and outstanding as of August 1, 1999

                                       A-22

<PAGE>



and (ii) 6,000,000 shares of Preferred  Stock,  each without par value, of which
no shares are issued and outstanding and 1,500,000  shares of Series R Preferred
Stock are reserved for issuance as of the date hereof

       (b) Summit is qualified to transact  business in and is in good  standing
under the laws of all  jurisdictions  where the failure to be so qualified could
reasonably  be expected to have a material  adverse  effect on (i) the business,
results  of  operations,  assets  or  financial  condition  of  Summit  and  its
subsidiaries  on a consolidated  basis, or (ii) the ability of Summit to perform
its obligations under, and to consummate the transactions  contemplated by, this
Agreement (a "Summit  Material  Adverse  Effect").  However,  a Summit  Material
Adverse  Effect or Summit  Material  Adverse Change (as defined at Section 3.03)
will not  include a change  resulting  from a change in law,  rule,  regulation,
generally accepted or regulatory  accounting principle or other matter affecting
financial  institutions or their holding companies  generally or from charges or
expenses  incident to the  Reorganization.  The bank  subsidiaries of Summit are
duly  organized,  validly  existing and in good standing under the laws of their
jurisdiction  of  organization.  Summit  and  its  bank  subsidiaries  have  all
corporate   power  and   authority  and  all  material   licenses,   franchises,
certificates,  permits and other governmental  authorizations  which are legally
required to own and lease their respective  properties,  occupy their respective
premises,  and to  engage  in their  respective  businesses  and  activities  as
presently  engaged in,  except where the failure of such would not have a Summit
Material  Adverse Effect.  Summit and its bank  subsidiaries  have each complied
with all applicable laws,  regulations and orders except where the failure to so
comply  would  not  have a  Summit  Material  Adverse  Effect.  Summit  is  duly
registered as a bank holding company under the BHCA.

       (c) All issued  shares of the capital  stock of Summit and of each of its
bank subsidiaries have been fully paid, were duly authorized and validly issued,
are  non-assessable,  have been  issued  pursuant to an  effective  registration
statement under the Securities Act or an appropriate exemption from registration
under the  Securities  Act and were not issued in  violation  of the  preemptive
rights of any  shareholder.  Summit or one of its subsidiaries is the holder and
beneficial owner of all of the issued and outstanding  Equity  Securities of its
bank  subsidiaries.  There are no Equity  Securities of Summit  outstanding,  in
existence, the subject of an agreement, or reserved for issuance,  except as set
forth at Section  3.01(a) and except for Summit Stock issuable upon the exercise
of employee  stock options  granted  under stock option plans of Summit,  Summit
Stock issuable  pursuant to Summit's  Dividend  Reinvestment  and Stock Purchase
Plan,  Savings  Incentive  Plan,  1993  Incentive  Stock and Option  Plan,  1999
Non-Executive  Option Plan and Series R Preferred Stock issuable pursuant to the
Summit Rights Agreement.

       (d)  All  Equity  Securities  of its  direct  and  indirect  subsidiaries
beneficially  owned by Summit or a subsidiary  of Summit are held free and clear
of any claims, liens, encumbrances or security interests.

       (e) Each bank  subsidiary  of Summit is duly  authorized  to conduct  all
activities  and  exercise  all  powers  of a  commercial  bank or  savings  bank
contemplated  by the laws of its  jurisdiction of  organization.  Each such bank
subsidiary is an insured bank as defined in the Federal Deposit Insurance Act.

       Section 3.02. Financial Statements. The financial statements (and related
notes and schedules  thereto)  contained in or  incorporated  by reference  into
Summit's (a) annual report to  shareholders  for the fiscal year ended  December
31, 1998,  (b) annual  report on Form 10-K  pursuant to the Exchange Act for the
fiscal year ended December 31, 1998 and (c) quarterly reports on Form 10-Q filed
pursuant to the  Exchange Act for the fiscal  quarters  ended March 31, 1999 and
June 30,

                                      A-23

<PAGE>



1998 (the "Summit  Financial  Statements")  are true and correct in all material
respects as of their respective dates and each fairly presents (subject,  in the
case of unaudited  statements,  to recurring audit adjustments  normal in nature
and  amount),  in  accordance  with  generally  accepted  accounting  principles
consistently  applied,  the consolidated  balance sheets,  statements of income,
statements of  shareholders'  equity and  statements of cash flows of Summit and
its  subsidiaries  at its respective date or for the period to which it relates,
except as may  otherwise  be described  therein and except that,  in the case of
unaudited  statements,  no consolidated  statements of changes in  stockholders'
equity are  included.  The Summit  Financial  Statements do not, as of the dates
thereof, include any material asset or omit any material liability,  absolute or
contingent, or other fact, the inclusion or omission of which renders the Summit
Financial Statements,  in light of the circumstances under which they were made,
misleading in any respect.

       Section 3.03.  No  Conflicts.  Summit is not in violation or breach of or
default under,  and has received no notice of violation,  breach,  revocation or
threatened or contemplated revocation of or default or denial of approval under,
nor will the execution, delivery and performance of this Agreement by Summit, or
the consummation of the  Reorganization  by Summit upon the terms and conditions
provided herein (assuming receipt of the Required Consents),  violate,  conflict
with,  result in the breach of, constitute a default under, give rise to a claim
or right of termination,  cancellation, revocation of, or acceleration under, or
result in the creation or imposition of any lien, charge or encumbrance upon any
rights,  permits,  licenses,  assets or  properties  material  to Summit and its
subsidiaries,  on a  consolidated  basis,  or upon any of the  capital  stock of
Summit,  or constitute an event which could,  with the lapse of time,  action or
inaction  by Summit,  or a third  party,  or the giving of notice and failure to
cure,  result in any of the  foregoing,  under any of the terms,  conditions  or
provisions, as the case may be, of:

       (i)   the Restated Certificate of Incorporation or the By-Laws of Summit;

       (ii)  any  law,  statute,  rule,  ruling,  determination,  ordinance,  or
             regulation of any governmental or regulatory authority;

       (iii) any judgment,  order,  writ,  award,  injunction,  or decree of any
             court or other governmental authority; or

       (iv)  any material note,  bond,  mortgage,  indenture,  lease,  policy of
             insurance or  indemnity,  license,  contract,  agreement,  or other
             instrument;

to which Summit is a party or by which Summit or any of its assets or properties
are bound or committed,  the  consequences of which would be a material  adverse
change in the business, results of operations,  assets or financial condition of
Summit and its subsidiaries, on a consolidated basis, from that reflected in the
Summit Financial  Statements as of and for the six months ended June 30, 1999 (a
"Summit  Material  Adverse  Change"),   or  enable  any  person  to  enjoin  the
transactions contemplated hereby.

       Section 3.04.  Absence of Litigation,  Agreements  with Bank  Regulators.
There  is  no  outstanding  order,  injunction,   or  decree  of  any  court  or
governmental  or  self-regulatory  body  against  or  affecting  Summit  or  its
subsidiaries which materially and adversely affects Summit and its subsidiaries,
on a  consolidated  basis,  and  there  are no  actions,  arbitrations,  claims,
charges,  suits,  investigations or proceedings (formal or informal) material to
Summit and its subsidiaries,  on a consolidated  basis,  pending or, to Summit's
knowledge,  threatened,  against  or  involving  Summit  or  their  officers  or
directors  (in their  capacity  as such) in law or equity or before  any  court,
panel or

                                       A-24

<PAGE>



governmental  agency,  except as may be  disclosed in the Forms 10-K and 10-Q of
Summit  referred to in Section 3.02.  Neither Summit nor any bank  subsidiary of
Summit is a party to any agreement or memorandum of understanding  with, or is a
party to any  commitment  letter  to,  or has  submitted  a board  of  directors
resolution  or similar  undertaking  to, or is subject to any order or directive
by,  or is a  recipient  of  any  extraordinary  supervisory  letter  from,  any
governmental or regulatory  authority which restricts  materially the conduct of
its business,  or in any manner relates to its capital  adequacy,  its credit or
reserve  policies or its  management.  Neither Summit nor any bank subsidiary of
Summit, has been advised by any governmental or regulatory  authority that it is
contemplating  issuing or requesting (or is considering the  appropriateness  of
issuing or requesting) any of the foregoing. Summit and the bank subsidiaries of
Summit have resolved to the satisfaction of the applicable regulatory agency any
significant   deficiencies   cited  by  any  such  agency  in  its  most  recent
examinations of each aspect of Summit or such bank subsidiary's  business except
for examinations, if any, received within the 30 days prior to the date hereof.

       Section 3.05. Regulatory Filings. At the time of filing, all filings made
by  Summit  and its  subsidiaries  after  December  31,  1995  with  the SEC and
appropriate bank regulatory  authorities did not contain any untrue statement of
a  material  fact and did not omit to state any  material  fact  required  to be
stated herein or therein or necessary to make the statements contained herein or
therein,  in  light  of the  circumstances  under  which  they  were  made,  not
misleading.  To the extent such filings were  subject to the  Securities  Act or
Exchange Act, such filings complied in all material respects with the Securities
Act or Exchange Act, as  appropriate,  and all applicable  rules and regulations
thereunder  of the SEC.  Summit has since  December  31,  1995  timely  made all
filings required by the Securities Act and the Exchange Act, as appropriate, and
all applicable  rules and regulations  thereunder of the SEC or the Federal bank
regulatory agency having  securities  regulatory  jurisdiction,  as appropriate.
Each of the financial statements (including related notes and schedules thereto)
contained in or incorporated by reference into such filings are true and correct
in all material  respects as of their  respective dates and each fairly presents
(subject,  in the case of unaudited  statements,  to recurring audit adjustments
normal in nature and amount),  in accordance with generally accepted  accounting
principles,  the  consolidated  statements  of  condition,  income,  changes  in
stockholders'  equity  and cash  flows of  Summit  and its  subsidiaries  at its
respective date and for the period to which it relates,  except as may otherwise
be  described  therein and except that in the case of unaudited  statements,  no
consolidated statements of changes in stockholders equity is included.

       Section 3.06.       Corporate Action.

       (a) Assuming due execution and delivery by NMBT, Summit has the corporate
power and is duly  authorized  by all  necessary  corporate  action to  execute,
deliver, and perform this Agreement.  The Board of Directors of Summit has taken
all action required by law or by the Restated  Certificate of  Incorporation  or
By-Laws of Summit or otherwise to authorize  the  execution and delivery of this
Agreement.  Approval  by the  shareholders  of  Summit  of this  Agreement,  the
Reorganization  or  the  transactions  contemplated  by  this  Agreement  is not
required by  applicable  law.  Assuming  due  execution  and delivery by and the
enforceability  against NMBT of this  Agreement,  this  Agreement is a valid and
binding  agreement of Summit  enforceable in accordance with its terms except as
such  enforcement  may be limited by  applicable  principles  of equity,  and by
bankruptcy, insolvency, reorganization, fraudulent transfer, moratorium or other
laws of general  applicability  presently or hereafter in effect  affecting  the
enforcement of creditors' rights generally or institutions the deposits of which
are insured by the Federal Deposit Insurance  Corporation,  or the affiliates of
such institutions.

       (b) In the event that  pursuant  to the  Reorganization  Election  Summit
elects the Reorganization

                                       A-25

<PAGE>



method provided for at Section 1.01(a)(2), the Designated Summit Subsidiary will
prior to Closing  (i) have the  corporate  power and be duly  authorized  by all
necessary corporation action to execute,  deliver and perform this Agreement and
(ii) the  Board of  Directors  and sole  shareholder  of the  Designated  Summit
Subsidiary  will have taken all  action  required  by law,  its  certificate  or
articles of  incorporation  and by-laws and otherwise to authorize the execution
and  delivery  of  this   Agreement  and  to  approve  this  Agreement  and  the
transactions  contemplated  hereby  including the  Reorganization.  Assuming due
execution  and  delivery  by and the  enforceability  against  each of the other
parties  hereto,  this  Agreement  will be a valid and binding  agreement of the
Designated Summit Subsidiary  enforceable in accordance with its terms except as
such  enforcement  may be limited by  applicable  principles  of equity,  and by
bankruptcy, insolvency, reorganization, fraudulent transfer, moratorium or other
laws of general  applicability  presently or hereafter in effect  affecting  the
enforcement  of creditors'  rights  generally or  institutions,  the deposits of
which  are  insured  by  the  Federal  Deposit  Insurance  Corporation,  or  the
affiliates of such institutions.

       Section  3.07.  Absence of  Changes.  There has not been,  since June 30,
1999, any Summit Material Adverse Change and there is no matter or fact known to
Summit  which  may  result in any such  Summit  Material  Adverse  Change in the
future.

       Section  3.08   Absence  of   Undisclosed   Liabilities.   There  are  no
liabilities,  whether  contingent  or  absolute,  direct  or  indirect,  or loss
contingencies (as defined in Statement of Financial  Accounting Standards No. 5)
other than (a) disclosed in the Summit Financial  Statements or disclosed in the
notes thereto,  (b) commitments made by Summit or any of its subsidiaries in the
ordinary  course of its  business  which are not in the  aggregate  material  to
Summit  and its  subsidiaries,  on a  consolidated  basis,  and (c)  liabilities
arising in the ordinary course of its business since June 30, 1999 which are not
in the  aggregate  material to Summit and its  subsidiaries,  on a  consolidated
basis.

       Section  3.09.  Allowance  for  Credit  Losses.  At  June  30,  1999  and
thereafter,  the allowances for credit losses of Summit and its subsidiaries are
adequate in all material  respects to provide for all losses on loans and leases
outstanding,  and  to the  best  of  Summit's  knowledge,  the  loan  and  lease
portfolios  of Summit  and its  subsidiaries  in excess of such  allowances  are
collectible in the ordinary course of business.

       Section 3.10. Accounting,  Tax and Regulatory Matters. Neither Summit nor
any of its  subsidiaries  has  taken or  agreed  to take any  action  or has any
knowledge of any fact or  circumstance  that would (i) prevent the  transactions
contemplated  hereby from qualifying as a  reorganization  within the meaning of
Section  368(a)  the Code,  or (ii)  materially  impede or delay  receipt of any
approval  referred to in Section 4.01 or the  consummation  of the  transactions
contemplated by this Agreement.

       Section  3.11.  Community  Reinvestment  Act  Compliance.  Summit and its
subsidiaries are in substantial compliance with the applicable provisions of the
Community Reinvestment Act of 1977 and the regulations  promulgated  thereunder,
and received a CRA rating of at least  satisfactory  as of their last  completed
examination.  As of the date of this Agreement, Summit and its subsidiaries have
not been advised of the existence of any fact or circumstance or set of facts or
circumstances  which, if true, would cause Summit or any bank subsidiary to fail
to be in substantial compliance with such provisions.

        Section 3.12. Year 2000 Compliant. To the best knowledge of Summit, all
computer  software  and  hardware  owned or  licensed  by  Summit  or any of its
subsidiaries is, or Summit has

                                       A-26

<PAGE>



taken or is taking all required  steps to be, Year 2000  compliant,  which,  for
purposes of this Agreement, shall mean that the data outside the range 1900-1999
will be  correctly  processed  in any level of  computer  hardware  or  software
including, but not limited to, microcode, firmware, applications programs, files
and  databases,  except  where the failure to be so  compliant  would not have a
Summit  Material  Adverse  Effect.  All computer  software  owned or licensed by
Summit is, or Summit has taken  steps or is taking  steps  (including  obtaining
warranties from the vendors thereof in respect of compliance) to ensure that all
computer  software  will be designed  to be used prior to,  during and after the
calendar year 2000 AD and that such software will operate  during each such time
period,  without error relating to date data,  specifically  including any error
relating  to,  or the  product  of,  date  data that  represents  or  references
different centuries or more than one century,  except where the failure to be so
designed or to so operate would not have a Summit Material Adverse Effect.


                                   ARTICLE IV.
                                COVENANTS OF NMBT

       NMBT hereby covenants and agrees with Summit that:

       Section 4.01.  Preparation of Registration Statement and Applications for
Required  Consents.  NMBT will  cooperate  with Summit in the  preparation  of a
Registration  Statement on Form S-4 (the  "Registration  Statement") to be filed
with the SEC under the  Securities Act for the  registration  of the offering of
Summit  Stock  to be  issued  as  Reorganization  Consideration  and  the  proxy
statement-prospectus   constituting   part   of   the   Registration   Statement
("Proxy-Prospectus")  that will be used by NMBT to solicit  shareholders of NMBT
for approval of the Reorganization.  In connection therewith,  NMBT will furnish
all  financial  or other  information,  including  using best  efforts to obtain
customary consents, certificates, opinions of counsel and other items concerning
NMBT,  deemed  necessary by counsel to Summit for the filing or preparation  for
filing  under  the  Securities  Act and  the  Exchange  Act of the  Registration
Statement (including the Proxy-Prospectus).  NMBT will cooperate with Summit and
provide  such  information  as  may  be  advisable  in  obtaining  an  order  of
effectiveness for the Registration  Statement,  appropriate permits or approvals
under state securities and "blue sky" laws, the required approval under the BHCA
of the Board of Governors of the Federal  Reserve  System (the "Federal  Reserve
Board") and any other  governmental  or regulatory  consents or approvals or the
taking of any other  governmental or regulatory  action  necessary to consummate
the  Reorganization  that  would  not  have a  Summit  Material  Adverse  Effect
following the Reorganization (the "Required  Consents").  Summit,  reasonably in
advance of making such  filings,  will provide NMBT and its counsel a reasonable
opportunity to comment on such filings and regulatory applications and will give
due consideration to any comments of NMBT and its counsel before making any such
filing or application,  and Summit will provide NMBT and its counsel with copies
of all such  filings  and  applications  at the time filed if such  filings  and
applications  are made at any time before the Effective Time. NMBT covenants and
agrees that all information  furnished by NMBT for inclusion in the Registration
Statement, the Proxy-Prospectus,  and all applications to appropriate regulatory
agencies for approval of the Reorganization will comply in all material respects
with the  provisions of applicable  law,  including the  Securities  Act and the
Exchange Act and the rules and regulations of the SEC  thereunder,  and together
with all  information  furnished by NMBT to Summit pursuant to this Agreement or
in  connection  with  obtaining  Required  Consents  will not contain any untrue
statement  of a  material  fact and will not  omit to state  any  material  fact
required to be stated  therein or  necessary  to make the  statements  contained
therein,  in  light  of the  circumstances  under  which  they  were  made,  not
misleading.  NMBT will furnish to Advest such information  about NMBT reasonably
available to it as Advest may reasonably request for purposes

                                       A-27

<PAGE>



of the opinion referred to in Section 8.07.

       Section 4.02. Notice of Adverse Changes. NMBT will promptly advise Summit
in writing of (a) any event  occurring  subsequent to the date of this Agreement
which would  render any  representation  or warranty of NMBT  contained  in this
Agreement  or the NMBT  Schedules  or the  materials  furnished  pursuant to the
Post-Signing Document List (as defined in Section 4.09), if made on or as of the
date of such event or the Closing  Date,  untrue or  inaccurate  in any material
respect,  (b) any NMBT Material  Adverse Change,  (c) any inability or perceived
inability  of NMBT to perform  or comply  with the terms or  conditions  of this
Agreement,  (d) the  institution  or  threat of  institution  of  litigation  or
administrative  proceedings involving NMBT or any of its subsidiaries or assets,
which, if determined adversely to NMBT or any of its subsidiaries,  would have a
NMBT Material Adverse Effect or an adverse material effect on the ability of the
parties to timely consummate the  Reorganization  and the related  transactions,
(e)  any  governmental  complaint,  investigation,   hearing,  or  communication
indicating that such litigation or  administrative  proceeding is  contemplated,
(f) any  written  notice of, or other  communication  relating  to, a default or
event  which,  with  notice or lapse of time or both,  would  become a  default,
received by NMBT or a subsidiary  subsequent to the date hereof and prior to the
Effective Time, under any agreement,  indenture or instrument to which NMBT or a
subsidiary  is a party or is  subject  and which is  material  to the  business,
operation or condition  (financial or otherwise) of NMBT and its subsidiaries on
a consolidated basis, and (g) any written notice or other communication from any
third party  alleging that the consent of such third party is or may be required
in connection with the transactions contemplated by this Agreement including the
Reorganization.  NMBT  agrees  that  the  delivery  of  such  notice  shall  not
constitute a waiver by Summit of any of the provisions of Articles VI or VII.

       Section 4.03.  Meeting of  Shareholders.  NMBT will call a meeting of its
shareholders for the purpose of voting upon this Agreement,  the  Reorganization
and  the  transactions   contemplated   hereby.   The  meeting  of  shareholders
contemplated  by this Section 4.03 will be held as promptly as practicable  and,
in connection therewith,  will comply with the Delaware Law and the Exchange Act
and all regulations  promulgated  thereunder governing  shareholder meetings and
proxy  solicitations.  In  connection  with such  meeting,  NMBT  shall mail the
Proxy-Prospectus  to NMBT  shareholders  and  use its  best  efforts  to  obtain
shareholder approval of this Agreement,  the Reorganization and the transactions
contemplated  hereby;  provided,  however,  that no  director  of NMBT  shall be
obligated to take an action under this Section 4.03 in such person's capacity as
a  director  if such  person has been  advised  in writing by counsel  that such
action is contrary to the fiduciary duty owed as a director.

       Section  4.04.  Copies of Filings.  Without  limiting the  provisions  of
Section  4.01,  NMBT  will  deliver  to  Summit,  at least 48 hours  prior to an
anticipated date of filing or distribution or as soon thereafter as practicable,
all documents to be filed with the SEC or any bank regulatory authority or to be
distributed in any manner to the shareholders of NMBT or to the news media or to
the  public,  other than the press  releases  and other  information  subject to
Section 10.01.

       Section 4.05. No Material Transactions.  Until the Effective Time, NMBT
will not and will not  allow  any of its  subsidiaries  to,  without  the  prior
written consent of Summit:

       (a) pay (or make a  declaration  which  creates an obligation to pay) any
cash dividends,  other than dividends from subsidiaries of NMBT to NMBT or other
subsidiaries  of NMBT except that NMBT may declare,  set aside and pay dividends
with record dates and payment dates set in accordance with NMBT's  customary and
established current practice and, with respect to individual

                                       A-28

<PAGE>



dividends,  at a rate at the time of declaration equal to the rate most recently
declared by Summit multiplied by 0.7024;

       (b) declare or  distribute  any stock  dividend or  authorize or effect a
stock split;

       (c) merge with, consolidate with, or sell any material asset to any other
corporation,  bank, or person (except for mergers of  subsidiaries  of NMBT into
other  subsidiaries  of NMBT) or enter  into any  other  transaction  not in the
ordinary course of the banking business;

       (d)  incur  any   liability  or   obligation   other  than   intracompany
obligations,  make or agree to make any commitment or  disbursement,  acquire or
dispose or agree to acquire or dispose of any  property  or asset  (tangible  or
intangible),  make or agree to make any contract or agreement or engage or agree
to engage in any other  transaction,  except (i)  transactions  in the  ordinary
course of business,  (ii)  transactions  not in the ordinary  course of business
involving  not more than  $50,000,  and (iii)  costs and  expenses  incurred  in
connection with the Reorganization  and other transactions  contemplated by this
Agreement;

       (e) subject any of its properties or assets to any lien,  claim,  charge,
option or encumbrance, except in the ordinary course of business and for amounts
not material in the aggregate to NMBT and its  subsidiaries,  on a  consolidated
basis;

       (f) except as permitted by Schedule 4.05(f),  pay any employee bonuses or
increase or enter into any agreement to increase the rate of compensation of any
employee at the date hereof  which is not  consistent  with past  practices  and
policies and which when  considered  with all such  increases or  agreements  to
increase constitutes an average annualized rate not exceeding four percent (4%);

       (g)  create,  adopt or  modify  any  employment,  termination,  severance
pension,  supplemental pension,  profit sharing,  bonus, deferred  compensation,
death benefit,  retirement,  stock option,  stock award, stock purchase or other
employee  or director  benefit or welfare  plan,  arrangement  or  agreement  of
whatsoever  nature,  including without limitation the NMBT Pension Plans and the
NMBT  Benefit  Plans  (collectively,  "NMBT  Plans"),  or  change  the  level of
benefits, reduce eligibility,  performance or participation standards,  increase
any payment or benefit under any NMBT Plan;

       (h) distribute,  issue, sell, award,  grant, permit to become outstanding
or enter into any agreement respecting any Equity Securities or any Equity Based
Rights  except  pursuant to the Option  Agreement or pursuant to the exercise of
director  and employee  stock  options and  warrants  granted  prior to the date
hereof under the NMBT Stock  Compensation  Plans and exercisable and outstanding
under the terms of a NMBT Stock Compensation Plan at the date of such exercise;

       (i) except in a fiduciary capacity, purchase, redeem, retire, repurchase,
or exchange, or otherwise acquire or dispose of, directly or indirectly,  any of
its Equity  Securities or Equity Based Rights,  whether pursuant to the terms of
such Equity  Securities or Equity Based Rights or  otherwise,  or enter into any
agreement providing for any of the foregoing transactions;

       (j) amend its  certificate  or articles of  incorporation  or articles of
association, as appropriate, charter or by-laws;

       (k) modify, amend or cancel any of its existing material borrowings other
than intra-corporate

                                       A-29

<PAGE>



borrowings  and  borrowings  of federal funds from  correspondent  banks and the
Federal Home Loan Bank of Boston or enter into any contract, agreement, lease or
understanding, or any contracts, agreements, leases or understandings other than
those in the ordinary course of business or which do not involve the creation of
any material  obligation or release of any material  right of NMBT or any of its
subsidiaries, on a consolidated basis;

       (l) create, amend, increase,  enhance,  accelerate the exercisability of,
or  release  or  waive  any  forfeitures,  terminations  or  expirations  of  or
restrictions on any rights, awards, benefits, entitlements,  options or warrants
under the NMBT  Plans  including  Equity  Securities  and  Equity  Based  Rights
outstanding ;

       (m)  except  as  permitted  by  Schedule   4.05(m),   make  any  employer
contribution  to a NMBT Plan  which  under the terms of the  particular  plan is
voluntary and within the discretion of NMBT to make;

       (n)  make  any  determination  or  take  any  action,   discretionary  or
otherwise,   under  or  with  respect  to  any  NMBT  Plan  other  than  routine
administration in accordance with past precedent;

       (o) notwithstanding any other provision of this Agreement,  enter into or
amend,  renew,  extend,  give any notice or consent  with  respect to, waive any
provision  under,  or accept  any new fees,  rates or other  costs or charges of
whatsoever nature, schedule,  exhibit or other attachment under (whether through
an action or inaction) any Insider  Agreement or any  agreement,  understanding,
contract, commitment or transaction relating to any Insider Indebtedness, except
to the extent permitted by Section 4.12 or disclosed in NMBT Schedule 2.24(b);

       (p) other than in the ordinary  course of business and in compliance with
applicable  laws and  regulations,  enter  into,  increase  or renew any loan or
credit commitment (including standby letters of credit) to any executive officer
or director of NMBT or any of its subsidiaries, any holder of 10% of more of the
outstanding  shares  of  NMBT  Stock,  or any  entity  controlled,  directly  or
indirectly, by any of the foregoing or engage in any transaction with any of the
foregoing  which is of the type or nature  sought to be  regulated  in 12 U.S.C.
ss.371c and 12 U.S.C. ss.371c-1. For purposes of this Section 4.05(p), "control"
shall have the meaning associated with that term under 12 U.S.C. ss.371c; or

       (q) take or fail to take any discretionary  action provided for under the
terms of any plan or agreement  affecting one or more  directors or employees or
any  affiliates  of such  where the  effect of such act or  failure to act is or
would be to give or confer a right or benefit not existing on the date hereof.

       Section 4.06.  Operation of Business in Ordinary Course.  NMBT, on behalf
of itself and its  subsidiaries,  covenants  and agrees  that from and after the
date hereof and until the  Effective  Time,  it and its  subsidiaries:  (a) will
carry on their business  substantially in the same manner as heretofore and will
not  institute  any unusual or novel methods of management or operation of their
properties  or business and will maintain such in their  customary  manner;  (b)
will use their best  efforts  to  continue  in effect  their  present  insurance
coverage on all properties,  assets, business and personnel;  (c) will use their
best efforts to preserve  their  business  organization  intact,  preserve their
present  relationships  with  customers,  suppliers,  and others having business
dealings  with them,  and keep  available  their  present  employees,  provided,
however,  that NMBT or any of its  subsidiaries  may  terminate any employee for
unsatisfactory  performance or other reasonable  business purpose,  and provided
further,  however,  that NMBT will  notify  and  consult  with  Summit  prior to
terminating any

                                       A-30

<PAGE>



of the five highest paid  employees of NMBT;  (d) will use their best efforts to
continue to maintain  fidelity bonds insuring NMBT and its subsidiaries  against
acts of  dishonesty  by each of their  employees  in such amounts (not less than
present coverage) as are customary, usual and prudent for corporations or banks,
as the case may be, of their  size;  and (e) will not  change  their  methods of
accounting  in  effect  at June 30,  1999,  or change  any of their  methods  of
reporting  income and  deductions  for Federal  income tax  purposes  from those
employed in the  preparation of their Federal income tax returns for the taxable
year ended December 31, 1998, except as required by changes in laws, regulations
or generally accepted accounting  principles or changes that are to a preferable
accounting  method,  and  approved  in writing by NMBT's  independent  certified
public accountants.

       Section 4.07.  Further  Actions.  NMBT will: (a) execute and deliver such
instruments  and take such other  actions as Summit  may  reasonably  require to
carry out the intent of this Agreement; (b) use all reasonable efforts to obtain
consents of all third parties and  governmental  bodies  necessary or reasonably
desirable  for  the  consummation  of  the  transactions  contemplated  by  this
Agreement;  (c) diligently  support this Agreement in any proceeding  before any
regulatory  authority  whose  approval of any of the  transactions  contemplated
hereby  is  required  or  reasonably  desirable  or  before  any  court in which
litigation in respect  thereof is pending;  and (d) use its best efforts so that
the  other  conditions  precedent  to the  obligations  of  Summit  set forth in
Articles VI and VII hereof are satisfied.

       Section 4.08.  Cooperation.  Until the Effective  Time, NMBT will give to
Summit and to its representatives,  including its accountants, KPMG Peat Marwick
LLP, and its legal counsel,  full access during normal  business hours to all of
its property,  documents,  contracts and records  relevant to this Agreement and
the  Reorganization,  will provide such information with respect to its business
affairs and properties as Summit from time to time may reasonably  request,  and
will cause its managerial employees,  and will use its best efforts to cause its
counsel  and  independent  certified  public  accountants,  to be  available  on
reasonable request to answer questions of Summit's  representatives covering the
business and affairs of NMBT or any of its subsidiaries.

       Section 4.09.  Copies of Documents.  As promptly as practicable,  but not
later than 30 days after the date hereof, NMBT will furnish to or make available
to  Summit  all the  documents,  contracts,  agreements,  papers,  and  writings
referred to in the NMBT  Schedules or called for by the list attached  hereto as
Exhibit C (the "Post-Signing Document List").

       Section 4.10.  Applicable Laws. NMBT and its subsidiaries  will use their
best efforts to comply promptly with all requirements which federal or state law
may impose on NMBT or any of its subsidiaries with respect to the Reorganization
and will promptly cooperate with and furnish information to Summit in connection
with any such requirements  imposed upon Summit or on any of its subsidiaries in
connection with the Reorganization.

       Section  4.11.  Agreements  of  Affiliated  Shareholders.  NMBT agrees to
furnish to Summit,  not later than 10 business days prior to the date of mailing
of the  Proxy-Prospectus,  a writing  setting  forth the names of those  persons
(which will include all  individual  and  beneficial  ownership of NMBT Stock by
such persons and also identifies the manner in which all such beneficially owned
shares of NMBT Stock are  registered  on the stock  record books of NMBT) who in
the written  opinion of counsel to NMBT (which  opinion need not be furnished to
Summit),  constitute  all the  affiliates  of NMBT for the  purposes of Rule 145
under the  Securities  Act (an "NMBT  Affiliate").  NMBT  agrees to use its best
efforts (i) to cause each NMBT  Affiliate to enter into an  agreement  effective
upon the execution thereof, satisfactory in form and substance to Summit and (y)
substantially  in the form of Exhibit  D-1 with  respect to  Affiliates  who are
directors or officers of

                                       A-31

<PAGE>



NMBT or a subsidiary  of NMBT, or (z)  substantially  in the form of Exhibit D-2
with  respect to  Affiliates  who are not  directors  or  officers  of NMBT or a
subsidiary  of  NMBT  (an  "Affiliate  Agreement"),  and  (ii) to  furnish  such
Affiliate  Agreements  to Summit no later than 5 business days prior to the date
of mailing of the Proxy-Prospectus.

       Section  4.12.  Loans and  Leases  to  Affiliates.  All loans and  leases
hereafter  made by  NMBT or any of its  subsidiaries  to any of its  present  or
former  directors or executive  officers or their respective  related  interests
shall be made only in the ordinary  course of business and on the same terms and
at the same interest rates as those prevailing for comparable  transactions with
others and shall not involve  more than the normal risk of  repayment or present
other unfavorable features.

       Section 4.13.  Confidentiality.  All  information  furnished by Summit to
NMBT or its  representatives  pursuant  hereto  shall  be  treated  as the  sole
property  of Summit  and, if the  Reorganization  shall not occur,  NMBT and its
representatives  shall return to Summit all of such written  information and all
documents,  notes,  summaries  or  other  materials  containing,  reflecting  or
referring  to,  or  derived  from,  such  information,   except  that  any  such
confidential  information or notes or abstracts therefrom presented to the Board
of Directors  of NMBT or any  committee  thereof for the purpose of  considering
this Agreement,  the Reorganization and the related transactions may be kept and
maintained by NMBT with other records of Board,  and Board  committee,  meetings
subject to a continuing obligation of confidentiality. NMBT shall, and shall use
its best efforts to cause its  representatives  to, keep  confidential  all such
information,  and shall not directly or indirectly use such  information for any
purposes other than the  performance of this  Agreement.  The obligation to keep
such  information  confidential  shall continue for five years from the date the
proposed Reorganization is abandoned and shall not apply to: (i) any information
which (x) was legally in NMBT's  possession  prior to the disclosure  thereof by
Summit, (y) was then generally known to the public, or (z) was disclosed to NMBT
by a  third  party  not  bound  by an  obligation  of  confidentiality;  or (ii)
disclosures  made as  required  by law.  It is  further  agreed  that if, in the
absence of a  protective  order or the  receipt of a waiver  hereunder,  NMBT is
nonetheless,  in the  written  opinion  of its  outside  counsel,  compelled  to
disclose  information  concerning Summit to any tribunal or governmental body or
agency or else stand  liable for  contempt or suffer  other  censure or penalty,
NMBT may disclose  such  information  to such tribunal or  governmental  body or
agency without liability  hereunder and shall so notify Summit in advance to the
extent  practicable.  This Section 4.13 shall  survive any  termination  of this
Agreement.

       Section 4.14. Dividends. NMBT will coordinate with Summit the declaration
of any dividends and the record and payment dates thereof so that the holders of
NMBT Stock will not be paid two  dividends  for a single  calendar  quarter with
respect to their shares of NMBT Stock and any shares of Summit Stock they become
entitled  to receive in the  Reorganization  or fail to be paid one  dividend in
each calendar  quarter between the date hereof and the Effective Time. NMBT will
notify  Summit  at least  five  business  days  prior to any  proposed  dividend
declaration date.

       Section 4.15.  Acquisition  Proposals.  NMBT agrees that neither NMBT nor
any of its subsidiaries nor any of the respective officers and directors of NMBT
or its  subsidiaries  shall,  and NMBT shall  direct and use its best  effort to
cause its employees,  affiliates, agents and representatives (including, without
limitation,  any investment  banker,  broker,  financial or investment  advisor,
attorney  or  accountant  retained by NMBT or any of its  subsidiaries)  not to,
initiate, solicit or encourage, directly or indirectly, any inquiries, proposals
or offers with respect to, or engage in any negotiations or discussions with any
person,  provide  any  nonpublic  information,  or  authorize  or enter into any
agreement  or  agreement  in  principle  concerning,  or  recommend,  endorse or
otherwise  facilitate  any  effort  or  attempt  to  induce  or  implement,  any
Acquisition Proposal (as defined below);

                                       A-32

<PAGE>



provided however, that the Board of Directors of NMBT may furnish or cause to be
furnished  nonpublic   information   directly  or  through  its  representatives
concerning an Acquisition  Proposal,  if such Board of Directors has determined,
after having consulted with outside counsel and been advised of its legal rights
to the effect,  that the failure to provide  such  nonpublic  information  would
cause the members of such Board of Directors to breach  their  fiduciary  duties
under applicable laws, and,  provided,  further,  that NMBT shall first obtain a
confidentiality  agreement  in  customary  form  and  containing  at  least  the
confidentiality  provisions  set forth at Sections  4.13 and 5.08.  "Acquisition
Proposal"  is hereby  defined to be any offer,  including  an exchange  offer or
tender offer, or proposal concerning a merger, consolidation,  or other business
combination or takeover transaction involving NMBT or any of its subsidiaries or
the  acquisition of any assets  (otherwise than as permitted by Section 4.05) or
securities of NMBT or any of its  subsidiaries.  NMBT will immediately cease and
cause to be terminated any existing activities,  discussion or negotiations with
any parties conducted heretofore with respect to any of the foregoing. NMBT will
take the necessary  steps to inform the  individuals or entities  referred to in
the first  sentence  hereof of the  obligations  undertaken in this Section.  In
addition, NMBT will notify Summit by telephone to its chief executive officer or
general  counsel  promptly upon receipt of any  communication  with respect to a
proposed  Acquisition  Proposal with another  person or receipt of a request for
information  from any  governmental  or regulatory  authority  with respect to a
proposed  acquisition  of NMBT or any of its  subsidiaries  or assets by another
party,  and  will   immediately   deliver  as  soon  as  possible  by  facsimile
transmission,  receipt acknowledged,  to the Summit officer notified as required
above a copy of any document  relating  thereto promptly after any such document
is received by NMBT.

       Section 4.16 Tax Opinion Certificates.  NMBT shall execute and deliver to
Thompson  Coburn any tax  opinion  certificate  reasonably  required by Thompson
Coburn in  connection  with the  issuance  of the Tax  Opinions  (as  defined at
Section  6.03),  dated  as of the  date  of  effectiveness  of the  Registration
Statement  and as of the Closing Date (and as of the date the Closing  occurs if
different than the Closing  Date),  and NMBT shall use its best efforts to cause
each of its  executive  officers,  directors and holders of five percent (5%) or
more of outstanding NMBT Stock (including shares  beneficially  held) to execute
and deliver to Thompson Coburn any tax opinion  certificate  reasonably required
by Thompson  Coburn in  connection  with the  issuance of one or more of the Tax
Opinions,  dated as of the date of effectiveness  of the Registration  Statement
and as of the Closing  Date (and as of the date the Closing  occurs if different
than the Closing Date).

       Section 4.17.  Directors' and Officers'  Insurance.  NMBT and each of its
subsidiaries  has taken or will take all requisite  action  (including,  without
limitation,  the  making of claims and the giving of  notices)  pursuant  to its
directors'  and  officers'   liability   insurance   policy  or  policies  ("D&O
Insurance")  in order to  preserve  all rights  thereunder  with  respect to all
matters  (other than matters  arising in connection  with this Agreement and the
transactions contemplated hereby) occurring prior to the Effective Time that are
known to NMBT.  NMBT shall renew any  existing  D&O  Insurance  or purchase  any
"discovery period" D&O Insurance provided for thereunder at Summit's request.

       Section 4.18.       Conforming Entries.

       (a)  Notwithstanding  that NMBT believes  that NMBT and its  subsidiaries
have  established  reserves and taken all provisions for possible loan and lease
losses required by generally accepted accounting principles and applicable laws,
rules and  regulations,  NMBT recognizes that Summit may have adopted  different
loan, accrual and reserve policies  (including loan classification and levels of
reserves for possible  loan and lease  losses).  From and after the date of this
Agreement,  NMBT and Summit  shall  consult and  cooperate  with each other with
respect to  conforming  the loan,  accrual and reserve  policies of NMBT and its
subsidiaries to those policies of Summit, as specified in each case

                                       A-33

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in writing to NMBT, based upon such consultation and as hereinafter provided.

       (b) In  addition,  from and  after the date of this  Agreement,  NMBT and
Summit shall consult and cooperate  with each other with respect to  determining
appropriate  accruals,  reserves and charges for NMBT to  establish  and take in
respect of excess equipment  write-off or write-down of various assets and other
appropriate charges and accounting  adjustments taking into account the parties'
business plan following the Reorganization, as specified in each case in writing
to NMBT, based upon such consultation and as hereinafter provided.

       (c) NMBT and Summit  shall  consult  and  cooperate  with each other with
respect to determining  the amount and the timing for  recognizing for financial
accounting  purposes NMBT's expenses of the Reorganization and the restructuring
charges,  if  any,  related  to  or  to  be  incurred  in  connection  with  the
Reorganization.

       (d) With respect to clauses (a) through (c) of this Section 4.18,  (i) it
is the objective of NMBT and Summit that such  reserves,  accruals,  charges and
divestitures,  if any, to be taken shall be consistent  with generally  accepted
accounting principles, and (ii) NMBT shall not be obligated to make a particular
conforming entry (A) effecting financial  statements as at or for periods ending
December 31, 1999 or earlier,  or (B) if the particular  entry is not capable of
being reversed upon a termination of this Agreement or if the entry would have a
material adverse effect on NMBT.

       Section 4.19 Cooperation with Policies and Procedures. NMBT, prior to the
Effective  Time,  shall (i) consult and  cooperate  with  Summit  regarding  the
implementation  of those policies and  procedures  established by Summit for its
governance and that of its subsidiaries and not otherwise  referenced in Section
4.18 of this Agreement,  including, without limitation,  policies and procedures
pertaining to the accounting,  asset/liability management,  audit, credit, human
resources,  treasury and legal functions,  and (ii) at the reasonable request of
Summit,  conform NMBT's  existing  policies and  procedures in respect  thereof,
provided that NMBT shall not be required to conform a policy or procedure (y) if
such would cause NMBT or any of its  subsidiaries to be in violation of any law,
rule, regulation or requirement of any governmental  regulatory authority having
jurisdiction over NMBT or any of its subsidiaries  affected  thereby,  or (z) if
such  conforming  change is not capable of being  reversed upon a termination of
this  Agreement or if the change would have a material  adverse effect on NMBT's
financial statements.

       Section 4.20  Environmental  Reports.  NMBT shall  disclose to Summit all
matters of the types described in Section 2.22 hereof which NMBT would have been
required  to  disclose to Summit on the date hereof if known to NMBT on the date
hereof,  as such become known to NMBT between the date hereof and the  Effective
Time. In addition,  Summit may at its expense perform, or cause to be performed,
a phase one  environmental  investigation,  an asbestos  survey,  or both of the
foregoing,  (i) within 90 days following the date of this Agreement, on all real
property owned,  leased or operated by NMBT or any of its subsidiaries as of the
date of this Agreement (but excluding space in retail or similar  establishments
leased by NMBT for automatic  teller  machines or leased bank branch  facilities
where the space leased by NMBT comprises less than 20% of the total space leased
to all tenants of such  property),  and (ii) within 15 days after being notified
by  NMBT  of  the  acquisition  or  lease  of  any  real  property  by it or its
subsidiaries after the date of this Agreement,  on the real property so acquired
or leased (but  excluding  space in retail or similar  establishments  leased by
NMBT for automatic  teller machines or leased bank branch  facilities  where the
space  leased by NMBT  comprises  less than 20% of the total space leased to all
tenants of such property).  If the results of a phase one investigation (whether
requested by NMBT or Summit) indicate, in the reasonable opinion of Summit, that
additional investigation is warranted, Summit may at its expense,

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<PAGE>



within 15 days after  receipt of the  particular  phase one  report,  perform or
cause to be performed a phase two  investigation  on the property or  properties
deemed  by  Summit  to  warrant  such  additional  study or  notify  NMBT and an
environmental consulting firm within 15 days after the receipt of the particular
phase one report that the environmental consulting firm should promptly commence
a phase  two  investigation.  If the  cost  of  taking  all  remedial  or  other
corrective  actions and measures (as required by  applicable  law, as reasonably
recommended by phase one or phase two  investigation  reports (without regard to
who  requested  such  reports)  or as may be prudent  in light of serious  life,
health or safety concerns), if any, is in the aggregate in excess of $1,000,000,
as reasonably  estimated by an environmental expert retained for such purpose by
Summit at its sole expense,  or if the cost of such actions and measures  cannot
be so  reasonably  estimated  by such  expert to be such amount or less with any
reasonable degree of certainty,  Summit shall have the right pursuant to Section
9.02(d)(3) of this Agreement to terminate this Agreement.

       Section 4.21        [Reserved]

       Section 4.22.  Dividend  Equivalency.  In the event the number determined
pursuant  to  Section  1.03(c)  to be the  Exchange  Ratio is  greater  than the
multiplier set forth at Section  4.05(a),  shareholders of record of NMBT at the
Effective Time shall become entitled to receive a cash payment per share of NMBT
Stock  held by them at the  Effective  Time  equal in amount  to the  difference
between  (i) the  dividends  per share  NMBT  would be able to pay  pursuant  to
Section 4.05(a) if the multiplier stated therein were such number,  and (ii) the
dividends  per share  actually  paid by NMBT  pursuant to Section  4.05(a).  Any
payment which NMBT  shareholders may become entitled to receive pursuant to this
Section 4.22 shall be distributed by Summit simultaneously with the distribution
of the Reorganization Consideration provided for in Article I.


                                   ARTICLE V.
                               COVENANTS OF SUMMIT

       Summit hereby covenants and agrees with NMBT that:

       Section 5.01.  Approvals and Registrations.  Based on such assistance and
cooperation of NMBT as Summit shall reasonably request, Summit will use its best
efforts to prepare and file (a) with the SEC, the  Registration  Statement,  (b)
with  the  Federal   Reserve  Board,   an   application   for  approval  of  the
Reorganization,  and (c) with the NYSE,  an  application  for the listing of the
shares of Summit Stock  issuable  upon the  Reorganization,  subject to official
notice  of  issuance,  and  (d)  with  any  state  regulatory  authority  having
jurisdiction  over  the  Reorganization,   applications  for  such  consents  or
approvals as may be required for consummation of the  transactions  contemplated
by this  Agreement,  except that Summit shall have no  obligation  to file a new
registration  statement  or  a  post-effective  amendment  to  the  Registration
Statement  covering any  reoffering of Summit Stock by NMBT  Affiliates.  Summit
covenants and agrees that all  information  furnished by Summit for inclusion in
the  Registration  Statement,  the  Proxy-Prospectus,  and all  applications and
submissions for the Required  Consents will comply in all material respects with
the provisions of applicable law,  including the Securities Act and the Exchange
Act and the rules and  regulations of the SEC and the Federal  Reserve Board and
will not contain any untrue  statement  of a material  fact and will not omit to
state any material fact  required to be stated  therein or necessary to make the
statements  contained  therein,  in light of the circumstances  under which they
were made, not  misleading.  Summit will use its reasonable best efforts to seek
the effectiveness of the Registration Statement. Summit will

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<PAGE>



furnish to Advest such information  about Summit  reasonably  available to it as
Advest may reasonably request for purposes of the opinion referred to in Section
8.07.

       Section 5.02. Notice of Adverse Changes. Summit will promptly advise NMBT
in writing of (a) any event  occurring  subsequent to the date of this Agreement
which would render any  representation  or warranty of Summit  contained in this
Agreement or the Summit Schedules, if made on or as of the date of such event or
the Closing Date, untrue or inaccurate in any material  respect,  (b) any Summit
Material Adverse Change,  (c) any inability or perceived  inability of Summit to
perform  or  comply  with the terms or  conditions  of this  Agreement,  (d) the
institution or threat of institution of litigation or administrative  proceeding
involving Summit or its assets which, if determined  adversely to Summit,  would
have a Summit  Material  Adverse  Effect  or a  material  adverse  effect on the
Reorganization,  (e) any governmental  complaint,  investigation,  or hearing or
communication  indicating that such litigation or  administrative  proceeding is
contemplated,  (f) any written notice of, or other communication  relating to, a
default or event  which,  with notice or lapse of time or both,  would  become a
default,  received  by Summit  subsequent  to the date  hereof  and prior to the
Effective Time, under any agreement,  indenture or instrument to which Summit is
a party or is  subject  and which is  material  to the  business,  operation  or
condition  (financial  or  otherwise)  of  Summit  and  its  subsidiaries  on  a
consolidated  basis, and (g) any written notice or other  communication from any
third party  alleging that the consent of such third party is or may be required
in connection with the transactions contemplated by this Agreement including the
Reorganization.  Summit  agrees  that the  delivery  of such  notice  shall  not
constitute a waiver by NMBT of any of the provisions of Articles VI or VIII.

       Section 5.03.  Copies of Filings.  Summit shall promptly  provide to NMBT
and its counsel copies of the application  filed with the Federal Reserve Board,
all  reports  filed  by it with  the SEC on  Forms  10-Q,  8-K and  10-K and all
documents to be distributed in any manner to the shareholders of Summit.

       Section 5.04. Further Actions.  Summit will: (a) execute and deliver such
instruments and take such other actions as NMBT may reasonably  require to carry
out the  intent of this  Agreement;  (b) use all  reasonable  efforts  to obtain
consents of all third parties and  governmental  bodies  necessary or reasonably
desirable  for  the  consummation  of  the  transactions  contemplated  by  this
Agreement;  (c) diligently  support this Agreement in any proceeding  before any
regulatory  authority  whose  approval of any of the  transactions  contemplated
hereby  is  required  or  reasonably  desirable  or  before  any  court in which
litigation in respect  thereof is pending;  and (d) use its best efforts so that
the other conditions  precedent to the obligations of NMBT set forth in Articles
VI and VIII hereof are satisfied.

       Section 5.05. Applicable Laws. Summit will use its best efforts to comply
promptly with all  requirements  which federal or state law may impose on Summit
with respect to the  Reorganization and will promptly cooperate with and furnish
information to NMBT in connection with any such  requirements  imposed upon NMBT
or on any of its subsidiaries in connection with the Reorganization.

       Section 5.06. Unpaid NMBT Dividends.  By virtue of the Reorganization and
without  further action on anyone's part,  Summit shall assume the obligation of
NMBT to pay  dividends,  if any, on NMBT Stock which have a record date prior to
the Effective Time but which are not payable until after the Effective Time.

       Section 5.07. Cooperation.  Until the Effective Time, Summit will provide
such information

                                       A-36

<PAGE>



with respect to its business  affairs and  properties  as NMBT from time to time
may reasonably  request,  and will cause its managerial  employees,  counsel and
independent  certified public  accountants to be available on reasonable request
to answer questions of NMBT's representatives  covering the business and affairs
of Summit or any of its subsidiaries.

       Section  5.08.  Confidentiality.  All  information  furnished  by NMBT to
Summit or its  representatives  pursuant  hereto  shall be  treated  as the sole
property  of NMBT and,  if the  Reorganization  shall not occur,  Summit and its
representatives  shall  return to NMBT all of such written  information  and all
documents,  notes,  summaries  or  other  materials  containing,  reflecting  or
referring  to,  or  derived  from,  such  information,   except  that  any  such
confidential  information or notes or abstracts therefrom presented to the Board
of Directors of Summit or any committee  thereof for the purpose of  considering
this Agreement,  the Reorganization and the related transactions may be kept and
maintained by Summit with other records of Board, and Board committee,  meetings
subject to a continuing  obligation of confidentiality.  Summit shall, and shall
use its best efforts,  to cause its  representatives  to, keep  confidential all
such information,  and shall not directly or indirectly use such information for
any purposes  other than the  performance of this  Agreement.  The obligation to
keep such information  confidential  shall continue for five years from the date
the  proposed  Reorganization  is  abandoned  and shall  not  apply to:  (i) any
information which (x) was legally in Summit's possession prior to the disclosure
thereof  by  NMBT,  (y) was  then  generally  known  to the  public,  or (z) was
disclosed  to  Summit  by  a  third  party  not  bound  by  an   obligation   of
confidentiality;  or (ii)  disclosures  made as  required  by law. It is further
agreed that if, in the absence of a protective  order or the receipt of a waiver
hereunder,  Summit  is  nonetheless,  in the  written  opinion  of its  counsel,
compelled  to  disclose   information   concerning   NMBT  to  any  tribunal  or
governmental  body or agency or else stand  liable for  contempt or suffer other
censure or penalty,  Summit may disclose  such  information  to such tribunal or
governmental body or agency without liability hereunder and shall so notify NMBT
in  advance to the extent  practicable.  This  Section  5.08 shall  survive  any
termination of this Agreement.

       Section 5.09. Further Transactions. Summit continually evaluates possible
acquisitions  and  may  prior  to the  Effective  Time  enter  into  one or more
agreements  providing for, and may  consummate the  acquisition by it of another
bank,  association,  bank holding  company,  savings and loan holding company or
other company (or the assets thereof) for consideration  that may include Summit
Stock. In addition, prior to the Effective Time, Summit may, depending on market
conditions and other factors,  otherwise determine to issue Equity Securities or
other securities for financing purposes.  Notwithstanding the foregoing,  Summit
will  not  take  any  such  action  that  would  (i)  prevent  the  transactions
contemplated  hereby from qualifying as a  reorganization  within the meaning of
Section  368(a) of the Code or (ii)  materially  impede or delay  receipt of any
Required Consent or the  consummation of the  transactions  contemplated by this
Agreement for more than 60 days.

       Section 5.10.       Indemnification.

       (a) Summit shall  indemnify  persons who served as directors and officers
of NMBT or any  subsidiary of NMBT on or before the Effective  Time with respect
to   liabilities   and  claims  (and  related   expenses,   including  fees  and
disbursements of counsel) made against them resulting from their service as such
prior to the Effective Time in accordance  with and subject to the  requirements
and other provisions of the Restated Certificate of Incorporation and By-Laws of
Summit and the certificate or articles of  incorporation  and by-laws of NMBT or
the  applicable  subsidiary  of  NMBT,  all as in  effect  on the  date  of this
Agreement and to the extent  permitted by law, and Summit shall advance expenses
in  matters  that may be  subject  to  indemnification  in  accordance  with its
Restated

                                       A-37

<PAGE>



Certificate of Incorporation and By-Laws in effect on the date of this Agreement
and any applicable provisions of law.

       (b) Subject to NMBT's  obligation set forth at Section 4.17: For a period
of six (6) years after the Effective  Time,  Summit will use its best efforts to
provide  to the  persons  who served as  directors  or  officers  of NMBT or any
subsidiary of NMBT on or before the Effective Time insurance against liabilities
and claims (and related expenses) made against them resulting from their service
as such prior to the Effective  Time  comparable in coverage to that provided by
Summit to its own directors and officers,  but, if not available on commercially
reasonable terms, then coverage  substantially  similar in all material respects
to the  insurance  coverage  provided  to them in such  capacities  at the  date
hereof;  provided,  however, that in no event shall Summit be required to expend
more than 200% of the current  amount  expended by NMBT on an annual  basis (the
"Insurance  Amount") to maintain or procure insurance  coverage pursuant hereto,
and,  further  provided,  that if Summit is unable  to  maintain  or obtain  the
insurance called for by this Section 5.10,  Summit shall use its best efforts to
obtain as much comparable insurance as is available for the Insurance Amount.

       (c) This  Section 5.10 shall be construed as an agreement as to which the
directors  and  officers  of NMBT and its  subsidiaries  referred  to herein are
intended to be third party  beneficiaries  and shall be  enforceable by the such
persons and their heirs and representatives.

       Section 5.11.       Employee Matters.

       (a) After the  Effective  Time,  Summit may in its  discretion  maintain,
terminate,  merge or  dispose of the NMBT  Plans;  provided,  however,  that any
action taken by Summit shall  comply with ERISA and any other  applicable  laws,
including  laws  regarding the  preservation  of employee  pension  benefit plan
benefits and, provided further,  that if Summit maintains a defined contribution
plan,  defined  benefit  plan or health and welfare  plan  available  to all its
employees  generally which is similar to a NMBT Plan which is,  respectively,  a
defined  contribution  plan,  defined  benefit  plan or health and welfare  plan
available to all NMBT employees generally, then, if such NMBT Plan is terminated
by Summit or is otherwise rendered inactive by Summit, Summit shall offer to the
former  employees  of NMBT  affected by such plan  termination  or  cessation of
activity the opportunity to participate in the similar plan of Summit.

       (b) Summit assumes all obligations under deferred  compensation  plans of
NMBT but shall have the right to terminate  such plans  following  the Effective
Time with respect to future compensation deferrals.

       (c) Summit agrees that the severance  plan of NMBT shall remain in effect
following the Effective Time  notwithstanding the provisions of Section 5.11 and
shall apply according to its terms to persons  employed by NMBT at the Effective
Time.

       Section 5.12. Tax Opinion Certificates.  Summit shall execute and deliver
to Thompson Coburn any tax opinion  certificate  reasonably required by Thompson
Coburn in connection with the issuance of the Tax Opinions, dated as of the date
of effectiveness  of the Registration  Statement and as of the Closing Date (and
as of the date the Closing occurs if different than the Closing Date).

       Section 5.13.  Additional  Tax Opinion.  NMBT shall be entitled to seek a
tax opinion  satisfactory  to it in form and content  from legal  counsel of its
choice in addition to the Tax Opinion, but receipt of such tax opinion shall not
be a  condition  to  NMBT's  closing  of  the  Reorganization  or to  any  other
obligation of NMBT hereunder.

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<PAGE>




                                   ARTICLE VI.
              CONDITIONS PRECEDENT TO THE RESPECTIVE OBLIGATIONS OF
                                 SUMMIT AND NMBT

       The  respective  obligations  of Summit and NMBT under this  Agreement to
consummate the  Reorganization  are subject to the simultaneous  satisfaction of
all the following  conditions,  compliance with which or the occurrence of which
may  only be  waived  in  whole  or in part in  writing  by  Summit  and NMBT in
accordance with Section 10.09:

       Section 6.01.  Receipt of Required  Consents.  Summit and NMBT shall have
received  the  Required  Consents;  the  Required  Consents  shall  not,  in the
reasonable  opinion of Summit,  contain  restrictions or limitations which would
materially adversely affect the financial condition of Summit after consummation
of the Reorganization;  the Required Consents and the transactions  contemplated
hereby shall not be contested  by any federal or state  governmental  authority;
and the Required Consents needed for the Reorganization shall have been obtained
and shall not have been withdrawn or suspended.

       Section  6.02.  Effective   Registration   Statement.   The  Registration
Statement  shall  have  been  declared  effective  by the  SEC;  no  stop  order
suspending  the  effectiveness  of the  Registration  Statement  shall have been
issued and remain in effect;  and no proceeding for that purpose shall have been
initiated  or, to the  knowledge  of Summit or NMBT,  shall be  contemplated  or
threatened by the SEC.

       Section  6.03.  Tax  Matters.   At  the  time  of  effectiveness  of  the
Registration  Statement  and at the  Closing  Date (and at the date the  Closing
occurs if different than the Closing Date),  Summit and NMBT shall have received
from Thompson Coburn an opinion (the "Tax Opinion"),  substantially  in the form
of  Exhibit  E to the  effect  that (a) the  Reorganization  will  constitute  a
tax-free  reorganization  within the meaning of Section  368(a) of the Code, (b)
except with respect to  fractional  share  interests,  holders of NMBT Stock who
receive  solely Summit Stock in the  Reorganization  will not recognize  gain or
loss for  federal  income  tax  purposes,  (c) the  basis of such  Summit  Stock
(including any fractional share for which cash is received) will equal the basis
of the NMBT Stock for which it is exchanged  and (d) the holding  period of such
Summit Stock  (including any  fractional  share for which cash is received) will
include the holding period of the NMBT Stock for which it is exchanged, assuming
that such NMBT Stock is a capital  asset in the hands of the  holder  thereof at
the Effective Time.

In addition,  no condition  or set of facts or  circumstances  shall exist which
will either (y) preclude any of the parties to this  Agreement  from  satisfying
the terms or conditions of, or assumptions made in, the Tax Opinion, as the case
may be, or (z) result in any of the  factual  assumptions  contained  in the Tax
Opinion being untrue.

       Section 6.04.  Absence of Litigation.  No  investigation  by any state or
federal agency, and no action, suit, arbitration or proceeding before any court,
state or federal agency,  panel or governmental or regulatory body or authority,
shall  have  been  instituted  or  threatened  against  Summit  or  any  of  its
subsidiaries,  or  NMBT or any of its  subsidiaries,  that  is  material  to the
Reorganization or to the financial condition of Summit and its subsidiaries on a
consolidated basis or NMBT and its subsidiaries on a consolidated  basis, as the
case may be. No order, decree,  judgment,  or regulation shall have been entered
or law or regulation adopted by any such agency,  panel, body or authority which
enjoined or has a material adverse effect upon the Reorganization or

                                       A-39

<PAGE>



on the  financial  condition of Summit and its  subsidiaries  on a  consolidated
basis or NMBT and its subsidiaries on a consolidated basis, as the case may be.

       Section 6.05. NYSE Listing. The NYSE shall have indicated that the shares
of Summit Stock to be issued in the Reorganization are to be listed on the NYSE,
subject to official notice of issuance.



                                  ARTICLE VII.
                CONDITIONS PRECEDENT TO THE OBLIGATIONS OF SUMMIT

       The obligation of Summit to consummate the  Reorganization  is subject to
the  simultaneous  satisfaction of all of the following  conditions,  compliance
with  which or the  occurrence  of which  may be  waived  in whole or in part by
Summit in writing in accordance with Section 10.09:

       Section  7.01. No Adverse  Changes.  There shall not have occurred at any
time after June 30, 1999 any NMBT Material  Adverse  Change or any material loss
or damage to the properties of NMBT or any of its  subsidiaries,  whether or not
insured, which materially affects the ability of NMBT and its subsidiaries, on a
consolidated basis, to conduct their business.

       Section 7.02.  Representations and Covenants.  Except with respect to (i)
matters resulting from transactions specifically contemplated by this Agreement,
(ii) matters  resulting from  transactions  or actions  permitted or required by
this  Agreement,  and  (iii)  changes  resulting  from a  change  in law,  rule,
regulation,  generally  accepted or  regulatory  accounting  principle  or other
matter affecting banking  institutions or their holding  companies  generally or
from charges or expenses incident to the Reorganization: all representations and
warranties  made by  NMBT in this  Agreement  and  the  NMBT  Schedules  and the
material furnished pursuant to the Post-Signing  Document List shall be true and
correct in all material  respects on the date of this  Agreement and on the date
the Closing occurs with the same force and effect as if such representations and
warranties  were  being  made on such date.  NMBT  shall  have  complied  in all
material  respects  with all  covenants and  agreements  contained  herein to be
performed by NMBT.

       Section  7.03.  Secretary's  Certificate.  NMBT shall have  furnished  to
Summit a  certificate  dated  the  date the  Closing  occurs  to which  shall be
attached  copies of all  resolutions  adopted or minutes of actions taken by the
Board of  Directors  (including  committees  thereof) and  shareholders  of NMBT
relating to this  Agreement,  the Option  Agreement and the  Reorganization  and
related transactions, which such certificate shall be signed by the Secretary of
NMBT and certify to the  satisfaction of the condition set forth in Section 7.09
and the truth,  correctness,  completeness  and continuing  effectiveness of all
resolutions   and  actions   contained  or  referenced  in  the   aforementioned
attachments.

       Section 7.04. Officer's Certificate.  NMBT shall have furnished to Summit
a certificate  signed by the Chief Executive Officer of NMBT, dated the date the
Closing  occurs,  certifying to the  satisfaction of the conditions set forth at
Sections 6.01,  6.02 (last clause),  6.03 (last  paragraph) and Section 6.04, as
they relate to NMBT, and at Sections 7.01, 7.02, 7.07 and 7.10.

       Section 7.05.  Opinion of NMBT's  Counsel.  Summit shall have received an
opinion of counsel to NMBT,  dated the date the  Closing  occurs and  reasonably
satisfactory in form and substance to counsel for Summit.

                                       A-40

<PAGE>



       Section 7.06.       [Reserved].

       Section 7.07.  Consents to NMBT  Contracts.  All  consents,  approvals or
waivers, in form and substance reasonably satisfactory to Summit, required to be
obtained  in  connection  with the  Reorganization  from  other  parties to each
mortgage, note, lease, permit, franchise, loan or other agreement or contract to
which  NMBT or any of its  subsidiaries  is a party or by  which  they or any of
their assets or properties may be bound or committed, which contract is material
to the  business,  franchises,  operations,  assets or condition  (financial  or
otherwise) of NMBT and its subsidiaries on a consolidated basis, shall have been
obtained.

       Section 7.08.  FIRPTA  Affidavit.  NMBT shall have delivered to Summit an
affidavit  of an  executive  officer of NMBT dated the date the  Closing  occurs
stating,  under penalties of perjury, that NMBT is not and has not been a United
States real  property  holding  company (as defined in Section  897(c)(2) of the
Code) during the applicable period specified in Section  897(c)(1)(A)(ii) of the
Code.

       Section 7.09.  Shareholder  Approval.  The  shareholders  of NMBT, at the
meeting  contemplated by this Agreement,  shall have authorized and approved the
Reorganization  and this  Agreement and all  transactions  contemplated  by this
Agreement as and to the extent  required by all applicable  laws and regulations
and the provisions of NMBT's Amended and Restated  Certificate of  Incorporation
and By-Laws.

       Section 7.10. Absence of Regulatory Agreements. Neither NMBT nor any NMBT
subsidiary  shall be a party to any  agreement or  memorandum  of  understanding
with, or commitment letter to, or board of directors  resolution submitted to or
similar undertaking made to, or be subject to any order or directive by, or be a
recipient of any  extraordinary  supervisory  letter from, any  governmental  or
regulatory  authority which  restricts  materially the conduct of its respective
business or has a material  adverse effect upon the  Reorganization  or upon the
financial  condition of Bank or of NMBT and its  subsidiaries  on a consolidated
basis,  and neither NMBT nor Bank shall have been advised by any governmental or
regulatory authority that such authority is contemplating issuing or requesting,
or  considering  the  appropriateness  of  issuing  or  requesting,  any  of the
foregoing.

The receipt of the documents  required by this Article VII by Summit shall in no
way  constitute  a waiver by Summit of any of the  provisions  of or its  rights
under this Agreement.


                                  ARTICLE VIII
                 CONDITIONS PRECEDENT TO THE OBLIGATION OF NMBT

       The obligation of NMBT to consummate the Reorganization is subject to the
simultaneous  satisfaction of all of the following  conditions,  compliance with
which or the  occurrence  of which  may be waived in whole or in part by NMBT in
writing in accordance with Section 10.09:

       Section  8.01. No Adverse  Changes.  There shall not have occurred at any
time after June 30, 1999 any Summit Material Adverse Change or any material loss
or  damage to the  properties  of Summit  or its  subsidiaries,  whether  or not
insured, which materially affects the ability of Summit and its subsidiaries, on
a consolidated basis, to conduct their business.

       Section 8.02.  Representations and Covenants.  Except with respect to (i)
matters resulting from transactions specifically contemplated by this Agreement,
(ii)  transactions  or actions  permitted or required by this  Agreement,  (iii)
changes resulting from a change in law, rule, regulation,

                                       A-41

<PAGE>



generally accepted or regulatory  accounting principle or other matter affecting
banking  institutions  or their holding  companies  generally or from charges or
expenses incident to the Reorganization: all representations and warranties made
by  Summit  in this  Agreement  and in the  Summit  Schedules  shall be true and
correct in all material  respects on the date of this  Agreement and on the date
the Closing occurs with the same force and effect as if such representations and
warranties were made on such date and Summit shall have complied in all material
respects  with all covenants and  agreements  contained  herein or therein to be
performed by Summit;  provided,  however,  that no  representation,  warranty or
covenant  of Summit  shall be  construed  to limit or prohibit  any  business or
financing  activities  of  Summit  including  by way  of  illustration  and  not
limitation,  the entry by Summit  after the date  hereof into any  agreement  to
acquire any assets or any company or other  entity,  the issuance of any debt or
equity  securities  in public or private  offerings,  the  issuance  of Series R
Preferred  Stock  pursuant to the Summit  Rights  Agreement,  the  redemption or
repurchase  by Summit of its capital  stock,  the Summit  Rights or the Series R
Preferred  Stock  issuable  pursuant  to the Summit  Rights  Agreement,  and any
transactions reasonably necessary or appropriate in connection therewith, and no
such  business  or  financing   activity  shall   constitute  a  breach  of  any
representation,  warranty or covenant of Summit; provided further, however, that
Summit  agrees  that it will not  permit  any  such  transaction  to  cause  any
unreasonable delay in the consummation of the Reorganization.

       Section 8.03.       Secretary's Certificate.

       (a) Summit shall have furnished to NMBT a certificate  dated the date the
Closing occurs to which shall be attached copies of all  resolutions  adopted or
minutes  of  actions  taken by the  Board  of  Directors  (including  committees
thereof) of Summit  relating to this  Agreement,  the Option  Agreement  and the
Reorganization and related transactions,  which such certificate shall be signed
by the Secretary of Summit and certify to the truth,  correctness,  completeness
and  continuing  effectiveness  of all  resolutions  and  actions  contained  or
referenced in the aforementioned attachments.

       (b) In the event that  pursuant  to the  Reorganization  Election  Summit
elects  the  Reorganization  method  provided  for at  Section  1.01(a)(2),  the
Designated  Summit  Subsidiary shall have furnished to NMBT a certificate  dated
the date the Closing occurs to which shall be attached copies of all resolutions
adopted  or  minutes  of  actions  taken by the  Board of  Directors  (including
committees  thereof)  and  shareholders  of  the  Designated  Summit  Subsidiary
relating to this Agreement,  the Reorganization and related transactions,  which
such  certificate  shall be signed by the  Secretary  of the  Designated  Summit
Subsidiary and certify to the satisfaction of the condition set forth at Section
8.09  applicable  to  the  Designated   Summit  Subsidiary  and  to  the  truth,
correctness,  completeness  and continuing  effectiveness of all resolutions and
actions contained or referenced in the aforementioned attachments.

       Section 8.04. Officer's Certificate.  Summit shall have furnished to NMBT
a certificate signed by the Chairman,  Vice Chairman,  President or an Executive
Vice President of Summit,  dated the date the Closing occurs,  certifying to the
satisfaction  of the  conditions  set forth at Sections 6.01 and 6.02,  the last
paragraph of Section 6.03, and Sections 6.04 and 6.05, as they relate to Summit,
and Sections 8.01, 8.02 and 8.08.

       Section  8.05.  Opinion of Summit  Counsel.  NMBT shall have  received an
opinion of the General Counsel of Summit,  dated the date the Closing occurs and
reasonably satisfactory in form and substance to counsel for NMBT.


                                       A-42

<PAGE>



       Section 8.06.       [Reserved]

       Section 8.07. Fairness Opinion. The Proxy-Prospectus shall have contained
the favorable signed opinion of Advest,  dated the date of the  Proxy-Prospectus
or a date not more than five business days prior thereto, regarding the fairness
from a financial point of view of the Exchange Ratio to the shareholders of NMBT
in the Reorganization.

       Section 8.08. Absence of Regulatory Agreements. Neither Summit nor any of
its bank  subsidiaries  shall  be a party  to any  agreement  or  memorandum  of
understanding  with, or commitment  letter to, or board of directors  resolution
submitted  to or  similar  undertaking  made to, or be  subject  to any order or
directive by, or be a recipient of any  extraordinary  supervisory  letter from,
any governmental or regulatory  authority which restricts materially the conduct
of Summit's business or has a material adverse effect upon the Reorganization or
upon the financial  condition of Summit and its  subsidiaries  on a consolidated
basis,  and  neither  Summit  nor any of its bank  subsidiaries  shall have been
advised by any  governmental  or  regulatory  authority  that such  authority is
contemplating  issuing or requesting,  or  considering  the  appropriateness  of
issuing or requesting, any of the foregoing.

       Section 8.09. NMBT Shareholder Approval. The shareholders of NMBT, at the
meeting  contemplated by this Agreement,  shall have authorized and approved the
Reorganization  and this  Agreement and all  transactions  contemplated  by this
Agreement as and to the extent  required by all applicable  laws and regulations
and the provisions of NMBT's Amended and Restated Certificate  Incorporation and
By-laws and in the event that  pursuant to the  Reorganization  Election  Summit
elects the  Reorganization  method  provided for at Section  1.01(a)(2) the sole
shareholder  of the  Designated  Summit  Subsidiary  shall have  authorized  and
approved the Reorganization and this Agreement and all transactions contemplated
by this  Agreement  as and to the extent  required  by all  applicable  laws and
regulations and the provisions of the Designated Summit Subsidiary's certificate
or articles of incorporation and by-laws.

The receipt of the  documents  required by this Article VIII by NMBT shall in no
way  constitute a waiver by NMBT of any of the provisions of or its rights under
this Agreement.


                                   ARTICLE IX
                           CLOSING; TERMINATION RIGHTS

       Section 9.01. Closing.  The closing of the Reorganization (the "Closing")
shall take place on the date which is 45  business  days after the last to occur
of the following  ("Scheduled  Date"),  unless Summit shall designate a date for
the Closing which is prior to the Scheduled Date in a writing ("Closing Notice")
designating a Determination Date in accordance with Section 9.02(e)(i) below and
delivered to NMBT at least five (5) business  days prior to the date  designated
therein for Closing,  or unless prior to the Scheduled Date the parties agree to
a different date:

        (i)     the  date  of  the  approval  of  the   Reorganization   by  the
                shareholders of NMBT in accordance with Section 7.09;

        (ii)    if the  transactions  contemplated  by this  Agreement are being
                contested in any legal proceeding, the date that such proceeding
                has been brought to a conclusion  favorable,  in the judgment of
                Summit  and  NMBT,  to  the  consummation  of  the  transactions
                contemplated  herein or such prior date as Summit and NMBT shall
                elect, whether or not

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<PAGE>



                such proceeding has been brought to a conclusion; or

        (iii)   the date of receipt of the last of the Required  Consents or the
                date  that  all   waiting   periods   required   by  statute  or
                incorporated into such Required Consents have expired;

and the date of Closing  determined in accordance with the foregoing  provisions
is referred to herein as the "Closing Date". The Closing shall take place at the
office of Summit,  301 Carnegie  Center,  Princeton,  New Jersey,  commencing at
10:00 a.m.  on the date the  Closing  is held,  unless  the  parties  agree to a
different place or commencement time. At the Closing,  the parties will exchange
certificates,  legal opinions and other documents for the purpose of determining
whether the  conditions  precedent to the  obligations  of the parties set forth
herein  have been  satisfied  or  waived.  In the  event  that  pursuant  to the
Reorganization Election Summit elected the Reorganization method provided for at
Section 1.01(a)(1), Summit shall, after all such conditions to Closing have been
satisfied or waived,  cause the NJ Certificate to be filed with the Secretary of
State of the State of New Jersey and the Delaware  Certificate  to be filed with
the  Secretary of State of the State of Delaware.  In the event that pursuant to
the Reorganization  Election Summit elected the  Reorganization  method provided
for at Section  1.01(a)(2),  Summit shall,  after all such conditions to Closing
have been  satisfied or waived,  cause the  appropriate  certificate  of merger,
articles  of merger,  or both to be filed with the proper  state  jurisdictional
authorities  to  effect  the  Reorganization  intended  by this  Agreement.  All
proceedings  to be taken and all  documents to be executed and  delivered by all
parties  at the  Closing  shall be  deemed  so  taken,  executed  and  delivered
simultaneously,  and no  proceedings  shall be  deemed  taken  or any  documents
executed or delivered until all have been taken, executed or delivered.

       Section 9.02.       Termination Rights.

       (a) The Board of Directors of NMBT or Summit may terminate this Agreement
in the event that:

              (1)  the  shareholders  of  NMBT at the  meeting  of  shareholders
contemplated  by  Section  4.03,   called  for  the  purpose  of  approving  the
Reorganization,  this  Agreement  and  the  transactions  contemplated  by  this
Agreement,  upon voting,  shall have failed to approve the Reorganization,  this
Agreement and the transactions contemplated hereby by the requisite vote;

              (2) a material breach of a warranty,  representation,  covenant or
agreement made by the other party in this Agreement shall have occurred and such
breach has not been  cured,  or is not  capable of being  cured,  within 30 days
after written notice of the existence thereof shall have been given to the other
party (a "Material  Breach") (provided that the terminating party is not then in
Material Breach of this Agreement);

              (3)  NMBT's  investment  banker is unable  to  deliver  to NMBT by
January 31, 2000 the opinion required by Section 8.07; or

              (4) the Closing is not  consummated  on or before the later of (i)
July 1, 2000,  unless the  failure of such  occurrence  shall be due solely to a
Material  Breach by the party seeking to terminate this Agreement or the failure
of such party to fulfill a condition to Closing provided for herein, or (ii) the
Scheduled  Date,  if the last  event  required  to occur  pursuant  to the first
sentence  of  Section  9.01 for the  setting  of the  Scheduled  Date shall have
occurred on or before August 1, 2000.

       (b) If either party shall refuse to close on the Closing Date because all
the conditions to its

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<PAGE>



obligation to close set forth in Article VI shall not have been met, the parties
shall conduct the Closing as promptly as practicable  after all such  conditions
have been satisfied.  In the event the failure of such a condition is due to one
or more  Material  Breaches,  the Board of  Directors of a party not in Material
Breach  may,  during  the  period  any such  Material  Breach  remains  uncured,
terminate this  Agreement by giving  written  notice of such  termination to the
other party.

       (c) If either party shall refuse to close on the Closing Date because all
the conditions to its obligation to close set forth in Article VII or VIII shall
not have been met (other  than a failure of the  condition  set forth at Section
7.09 or 8.09 due to the circumstances set forth in Section  9.02(a)(1) hereof or
a failure of the  condition  set forth at Section 8.07 due to the  circumstances
set forth at Section  9.02(a)(3)  hereof):  (i) the  parties  shall  conduct the
Closing  as  promptly  as  practicable  after  all  such  conditions  have  been
satisfied,  and (ii) the Board of Directors of such party may, during the period
the failed  condition  continues,  terminate  this  Agreement by giving  written
notice of such  termination  to the other  party  unless  such party  itself has
failed to satisfy a condition to the other party's  Closing  obligation or is in
Material Breach.

       (d) The Board of Directors of Summit may terminate this Agreement:

              (1) at any time if NMBT does not  execute  and  deliver the Option
Agreement by the day immediately following the date hereof;

              (2)  at any  time  prior  to  the  meeting  of  NMBT  shareholders
contemplated  by  Section  4.03,  if the  Board of  Directors  of NMBT  fails to
recommend   approval  of  this  Agreement  and  the   Reorganization  and  other
transactions  contemplated hereby in the Proxy-Prospectus  ("Recommendation") or
withdraws,  modifies or changes,  or votes to  withdraw,  modify or change,  its
Recommendation  or its intention to make the  Recommendation  as represented and
warranted at Section 2.08; and

              (3) as provided at Section 4.20.

       (e) In the event the Summit  Price is less than  $26.39 and the  quotient
obtained by dividing the Summit Price by $32.1875 is more than .15 less than the
quotient obtained by dividing the Determination  Date Index Price (as defined at
(iii)  below) by the Starting  Date Index Price (as defined at (iv) below),  the
Board of  Directors of NMBT shall have the right,  exercisable  only until 11:59
p.m. on the third  business day  following the  Determination  Date to terminate
this  Agreement by giving Summit notice of such  termination,  referring to this
Section 9.02(e), and this Agreement shall be terminated provided Summit receives
such notice prior to the time and day set forth above in this Section 9.02(e).
For purposes of this Section 9.02(e):

       (i)    "Determination  Date" means the date which is seven  business days
              prior to the  Scheduled  Date or,  if  Summit  delivers  a Closing
              Notice to Bank  pursuant to Section  9.01,  the date  specifically
              designated  by Summit as the  Determination  Date in such  Closing
              Notice,  which date shall be not more than ten business days prior
              to the Closing Date.

       (ii)   "Summit  Price" means the average of the closing prices of a share
              of  Summit  Stock  on the  NYSE  Composite  Transactions  List (as
              reported in The Wall Street Journal or, in the absence thereof, as
              reported by another  authoritative  source mutually agreed upon by
              NMBT and Summit) for the 10 consecutive full trading days,  ending
              on the

                                       A-45

<PAGE>



              Determination Date, on which one share of Summit Stock is traded.

       (iii)  "Determination  Date Index Price" means the average of the closing
              prices of the common stock of the companies in the Index Group (as
              defined at (v) below) on the NYSE Composite  Transactions List (as
              reported in The Wall Street Journal or, in the absence thereof, as
              reported by another  authoritative  source mutually agreed upon by
              NMBT and Summit) for the 10  consecutive  full trading days ending
              on the Determination Date.

       (iv)   "Starting  Date Index  Price"  means the  average  of the  closing
              prices on the  Starting  Date (as  defined  at (vi)  below) of the
              common  stock  of the  companies  in the  Index  Group on the NYSE
              Composite  Transactions  List  (as  reported  in The  Wall  Street
              Journal) as of the Determination Date.

       (v)    "Index  Group"  means the bank  holding  companies  listed  below;
              provided,  however,  that if  between  the  Starting  Date and the
              Determination  Date the common stock of any such company ceases to
              be publicly traded, an announcement is made of a proposal for such
              company to be acquired or an announcement is made of a proposal by
              such   company  to  acquire   another   company  or  companies  in
              transactions  with a value exceeding 25% of such acquiror's market
              capitalization  as of the Starting Date,  then, in such event, for
              purposes of calculating the Index Price in all cases, such company
              will be removed from the Index Group.  If any company in the Index
              Group  or  Summit   declares   or   effects   a  stock   dividend,
              reclassification,    recapitalization,    split-up,   combination,
              exchange of shares or similar  transaction  between  the  Starting
              Date and the  Determination  Date, the closing price of the common
              stock of such  company  or  Summit,  as the  case  may be,  on the
              Starting Date shall be appropriately  adjusted for the purposes of
              applying this Section 9.02(e).  The bank holding  companies in the
              Index Group are as follows:

              Bank Holding Companies
              AmSouth Bancorp
              BB&T Corporation
              Comerica Incorporated
              Fifth Third Bancorp
              Huntington Bancshares, Inc.
              Keystone Financial, Inc.
              North Fork Bancorporation, Inc.
              Northern Trust Corporation
              Old Kent Financial Corporation
              Regions Financial Corporation
              SouthTrust Corporation
              Union Planters Corp.
              Wilmington Trust Corporation
              Zions Bancorp

       (vi) "Starting Date" means the date of the last trading day ending before
       the public announcement of the execution of this Agreement.

       Section 9.03.       Effects of a Termination; Certain Expenses.

       (a) Upon a termination  of this  Agreement  pursuant to this Section 9.02
hereof:


                                       A-46

<PAGE>



              (1) the  obligations of the parties under this  Agreement  (except
for those under this Section 9.03 and  Sections  4.13 and 5.08) shall  terminate
and be of no further  force or effect and each party shall be mutually  released
and  discharged  from  liability  to the  other  party or to any  third  parties
hereunder, and

              (2) no party  shall be liable to any other  party for any costs or
expenses  paid or incurred in  connection  herewith by such other party,  except
that expenses incurred in connection with printing the  Proxy-Prospectus and the
Registration  Statement,  and the  filing  fees  of  regulatory  authorities  or
self-regulatory  organizations,  shall be borne  equally  by  Summit  and  NMBT;
provided,  however,  that: (A) if NMBT  terminates  this  Agreement  pursuant to
Section  9.02(a)(2)  or Section  9.02(c),  Summit shall  reimburse  NMBT for its
out-of-pocket  expenses  reasonably  incurred in connection with this Agreement,
including  counsel fees and the printing and filing fees referred to above,  but
excluding any brokers',  finders' or investment bankers' fees; and (B) if Summit
terminates  this Agreement  pursuant to Section  9.02(a)(2),  Section 9.02(c) or
Section  9.02(d),  NMBT shall reimburse  Summit for its  out-of-pocket  expenses
reasonably  incurred in connection with this Agreement,  including  counsel fees
and the printing and filing fees referred to above,  but excluding any brokers',
finders' or investment bankers' fees.

       (b)  Notwithstanding  any termination of this  Agreement,  (i) NMBT shall
indemnify  and hold Summit  harmless from and against any claim by any broker or
finder  asserting a right to brokerage  commissions or finders' fees as a result
of any action  allegedly taken by or understanding  allegedly  reached with NMBT
and (ii) Summit  shall  indemnify  and hold NMBT  harmless  from and against any
claim by any broker or finder  asserting  a right to  brokerage  commissions  or
finders'  fees as a result of any  action  allegedly  taken by or  understanding
allegedly reached with Summit.

       (c) Except as provided  otherwise herein in the event of a termination of
this Agreement, NMBT and its subsidiaries shall bear their own expenses incident
to preparing,  entering into and carrying out this Agreement and to consummating
the  Reorganization,  provided,  however,  that  Summit  shall pay all  printing
expenses  and  filing  fees  associated  with the  Registration  Statement,  the
Proxy-Prospectus and regulatory applications.


                                    ARTICLE X
                                  MISCELLANEOUS

       Section 10.01. Press Releases. At all times until the Closing Date or the
termination of this Agreement, each party shall promptly advise and consult with
the other prior to issuing,  or permitting any of its  subsidiaries,  directors,
officers,  employees or agents to issue, any press release or other  information
to  the  press  or any  third  party  with  respect  to  this  Agreement  or the
transactions contemplated hereby.

       Section 10.02. Article and Section Headings. Article and section headings
contained in this Agreement are for reference purposes only and shall not affect
in any way the meaning or interpretation of this Agreement.

       Section 10.03.  Entire Agreement;  Amendments.  This Agreement,  the NMBT
Schedules and the Exhibits hereto and the Option Agreement to be entered into by
the  parties  hereto   constitute  the  entire  agreement  between  the  parties
pertaining   to  the  subject   matter   hereof  and  supersede  all  prior  and
contemporaneous  agreements,   understandings,   negotiations  and  discussions,
whether  oral  or  written,  of  the  parties,  and  there  are  no  warranties,
representations or other agreements between the

                                       A-47

<PAGE>



parties in connection with the subject matter hereof except as specifically  set
forth herein or therein. No supplement,  modification,  waiver or termination of
this Agreement  shall be binding  unless  executed in writing by the party to be
bound  thereby (or in the case of a  termination  occurring  pursuant to Section
9.02 hereof by the party  exercising a right to terminate  this  Agreement).  No
waiver  of any of the  provisions  of this  Agreement  shall be  deemed or shall
constitute  a waiver of any other  provision  hereof or thereof  (whether or not
similar),  nor shall any waiver  constitute a continuing waiver unless otherwise
expressly  provided in the instrument  granting such waiver.  The parties hereto
may amend or modify  this  Agreement  in such  manner as may be agreed upon by a
written  instrument  executed by the  parties,  except  that,  after the meeting
described in Section 7.09 hereof, no such amendment or modification shall reduce
the  amount  of, or change  the forms of  consideration  to be  received  by the
shareholders of NMBT contemplated by this Agreement, unless such modification is
submitted to a vote of the shareholders of NMBT.

       Section 10.04. Survival of Representations,  Warranties and Covenants. No
investigation  made by the parties  hereto made  heretofore  or hereafter  shall
affect the  representations  and  warranties  of the parties which are contained
herein  and  each  such   representation   and  warranty   shall   survive  such
investigation. 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  representations,  covenants
and agreements  contained herein and therein which by their terms apply in whole
or in part after the Effective Time.

       Section 10.05.  Notices.  Any notice or other  communication  required or
permitted hereunder shall be in writing, and shall be deemed to have been given,
unless  otherwise  specified in a particular  provision  of this  Agreement,  if
placed in the mail,  registered or certified,  postage prepaid,  or if delivered
personally  or by courier,  receipt  requested,  or by  facsimile  transmission,
receipt acknowledged addressed as follows:

       Summit:                              Summit Bancorp.
                                            Attn: John G. Collins
                                            301 Carnegie Center
                                            P.O. Box 2066
                                            Princeton, NJ   08543-2066
                                            Telephone No.:  609-987-3422
                                            Facsimile No.:  609-987-3435


       With a copy to:                      Richard F. Ober, Jr., Esq.
                                            Summit Bancorp.
                                            301 Carnegie Center
                                            P.O. Box 2066
                                            Princeton, NJ 08543-2066
                                            Telephone No.:  609-987-3430
                                            Facsimile No.:  609-987-3435

       NMBT:                                NMBT CORP
                                            Attention: Michael D. Carrigan
                                            55 Main Street
                                            New Milford, Connecticut 06716
                                            Telephone No.: 860-350-0180
                                            Facsimile No.: 860-355-3489

                                       A-48

<PAGE>



       With a copy to:                      Stanford N. Goldman, Jr., Esq.
                                            Mintz, Levin, Cohn, Ferris,
                                            Glovsky and Popeo, PC
                                            One Financial Center
                                            Boston, Massachusetts  02111
                                            Telephone No.: 617-348-1708
                                            Facsimile No.: 617-542-2241

or to such other  address as such party may  designate  by notice to the others,
which change of address shall be deemed to have been given upon receipt.

       A notice or other  communication  hereunder shall be deemed delivered (i)
if mailed by certified or registered mail to the proper  address,  with adequate
postage  prepaid,  on the fifth  business day  following  posting,  (ii) if hand
delivered,  when received by the person to whom directed,  (iii) if delivered by
overnight  courier,  on the next  business day  following  shipment,  or (iv) if
delivered via facsimile, on the business day transmitted.

       Section 10.06.  Governing  Law. This  Agreement  shall be governed by and
construed and enforced in  accordance  with the laws of the State of New Jersey,
without giving effect to the provisions, policies or principles thereof relating
to choice or conflict of laws.

       Section   10.07.   Counterparts.   This   Agreement  is  being   executed
simultaneously  in two or more  counterparts,  each of which  shall be deemed an
original, but all of which together shall constitute one and the same agreement.

       Section 10.08.  Binding  Effect.  All of the terms and provisions of this
Agreement  shall be binding  upon and shall  inure to the benefit of the parties
hereto and their respective successors and assigns.

       Section 10.09. Extensions;  Waivers and Consents. Either party hereto, by
written instrument signed by its Chairman,  Vice Chairman,  President,  or Chief
Financial  Officer,  may  extend  the  time  for the  performance  of any of the
obligations  of the other  party  hereto,  and may waive,  at any time before or
after approval of this Agreement and the transactions contemplated hereby by the
shareholders of NMBT, subject to the provisions of Section 10.03 hereof: (i) any
inaccuracies  of the other party in the  representations  and warranties in this
Agreement  or any other  document  delivered  pursuant  hereto or thereto;  (ii)
compliance  with any of the covenants or agreements of the other party contained
in  this  Agreement;   (iii)  the  performance  (including  performance  to  the
satisfaction  of a  party  or its  counsel)  by the  other  party  of any of its
obligations hereunder or thereunder; and (iv) the satisfaction of any conditions
to the obligations of the waiving party hereunder or thereunder.  Any consent or
approval of a party hereunder shall be effective only if signed by the Chairman,
Vice Chairman, President or Chief Financial Officer of such party.




                                       A-49

<PAGE>


       IN WITNESS WHEREOF, the parties have caused this Agreement to be executed
in  counterparts  by their duly  authorized  officers as of the date first above
written.

                                     SUMMIT BANCORP.


                                     By: /s/ John G. Collins
                                         John G. Collins
                                         Vice Chairman

                                     NMBT CORP


                                     By: /s/ Michael D. Carrigan
                                         Michael D. Carrigan
                                         President and Chief Executive Officer

In the event that  pursuant to the  Reorganization  Election  Summit  elects the
Reorganization method provided for at Section 1.01(a)(2),  the Designated Summit
Subsidiary  indicated  below  agrees  to be  legally  bound by all terms of this
Agreement and Plan of Merger as if an original party hereto.

Designated Summit Subsidiary: ___________________________________

                     By __________________________________
                     Name: _______________________________
                     Title:_________________________________
                     Date: ________________________________


                                      A-50

<PAGE>

                                                                      APPENDIX B

                                 FORM OF OPINION

Board of Directors
NMBT Corp
55 Main Street

New Milford, Connecticut 06776

Members of the Board:

      NMBT Corp ("NMBT") and Summit Bancorp ("Summit") have entered into an
Agreement and Plan of Merger dated October 3, 1999 (the "Agreement"), pursuant
to which NMBT will merge with Summit in a manner as described in the Agreement.
The Agreement provides that each outstanding share of NMBT common stock issued
and outstanding at the Effective Time (as defined in the Agreement) will be
converted into the right to receive whole shares of Summit Stock (as defined in
the Agreement) and cash in lieu of fractional shares of Summit Stock based upon
the Exchange Ratio determined as follows:

      (i)  if the Summit Price (as defined in the Agreement) is greater than
           $37.0156, the Exchange Ratio shall be .7024;

      (ii) if the Summit Price is equal to or greater than $27.3594 and equal to
           or less than $37.0156, the Exchange Ratio shall be equal to the
           quotient obtained by dividing $26.00 by the Summit Price; and

      (iii)if the Summit Price is less than $27.3594, the Exchange Ratio shall
           be .9503.

      The terms and conditions of the proposed transaction are described in
further detail in the Agreement. The Agreement is expected to be considered by
the shareholders of NMBT at a shareholders meeting and the Merger consummated
shortly after the receipt of shareholder, state and federal regulatory
approvals.

      You have asked us whether, in our opinion, the Exchange Ratio is fair,
from a financial point of view, to the shareholders of NMBT.

      In arriving at the opinion set forth below, we have, among other things:
reviewed the Agreement dated October 3, 1999, and the exhibits and schedules
thereto; reviewed the Stock Option Agreement dated October 4, 1999 between NMBT
and Summit; reviewed the Annual Reports on Form 10-K for NMBT and Summit for the
years ended December 31, 1998, 1997, and 1996; reviewed the Quarterly Reports on
Form 10-Q for NMBT and Summit for the periods ended June 30, 1999 and March 31,
1999; reviewed certain financial analyses and forecasts of NMBT which were
prepared by management of NMBT; reviewed comparative financial and operating
data on the banking industry and certain institutions which we deemed to be
comparable to each of NMBT and Summit; reviewed the historical market prices and
trading activity for the common stock of each of NMBT and Summit relative to
other publicly traded companies which we deemed to be comparable to each
company; reviewed the contribution of NMBT and Summit to the new proforma
combined entity on the basis of a number of key financial categories in relation
to proforma ownership; reviewed the proforma impact of the merger; reviewed the
present value of NMBT's business plan; reviewed certain bank mergers and
acquisitions on a regional and nationwide basis for institutions which we deemed
to be comparable to NMBT and compared the proposed consideration with the
consideration paid in such other mergers and acquisitions; considered the
financial effect of the Summit equivalent dividends to be paid by NMBT to its
shareholders during the period beginning from the date of the Agreement to the
Effective Time; conducted limited discussions with members of senior management
of each of NMBT and Summit concerning the financial condition, business and
prospects of each respective company; and reviewed such other financial studies
and analyses and performed such other investigations and took into account such
other matters as we deemed necessary.

      In performing our review and preparing this opinion, we have assumed and
relied upon the accuracy and completeness of all financial and other information
reviewed by us for purposes of this opinion, and we have not independently
verified such information nor have we undertaken an independent evaluation of
the assets and liabilities of NMBT or Summit. Advest has been retained by the
Board of Directors of NMBT to act as financial advisor to NMBT with respect to
the Merger and will receive a fee for its services including a fee for this
opinion. In the past we have also performed certain other investment banking
services for NMBT and have received compensation for such services.

                                      B-1
<PAGE>
      This opinion is necessarily based upon circumstances and conditions as
they exist and can be evaluated by us as of the date of this letter. Our opinion
is directed to the Board of Directors of NMBT and does not constitute a
recommendation of any kind to any shareholder of NMBT as to how such shareholder
should vote at the shareholders' meeting to be held in connection with the
merger. We have assumed for purposes of this opinion that there has been no
material change in the financial condition of either NMBT or Summit from that
reflected in the Form 10-Q for the quarter and six months ended June 30, 1999
filed with the Securities and Exchange Commission for each respective company.

      In reliance upon and subject to the foregoing, it is our opinion that, as
of the date hereof, the Exchange Ratio is fair, from a financial point of view,
to the shareholders of NMBT.

      Advest will consent to a description and inclusion of this opinion in
documents issued with regard to this transaction and to references to Advest in
such documents, provided that any such description and references are reasonably
acceptable to Advest. Except as otherwise provided above, this opinion is solely
for the use and benefit of the Company and shall not be disclosed publicly or
made available to third parties without the prior approval of Advest, which
approval shall not be unreasonably withheld.

                                             Very truly yours,

                                             Advest, Inc.

                                             By: ______________________________
                                                 Stephen J. Gilhooly
                                                 Director
                                      B-2
<PAGE>
                                                                      APPENDIX C


                        NMBT CORP STOCK OPTION AGREEMENT

THE  TRANSFER  OF THE  OPTION  GRANTED  BY THIS  AGREEMENT  IS SUBJECT TO RESALE
RESTRICTIONS ARISING UNDER THE SECURITIES ACT OF 1933, AS AMENDED.

         STOCK OPTION AGREEMENT,  dated as of the 4th day of October, 1999 (this
"Agreement"), between Summit Bancorp., a New Jersey corporation ("Grantee"), and
NMBT CORP, a Delaware corporation ("Issuer").

                                   WITNESSETH:

         WHEREAS,  Grantee and Issuer  have on a date prior to the date  hereof,
entered  into an  Agreement  and  Plan  of  Merger,  dated  as of the 3rd day of
October,  1999  (the  "Merger  Agreement").  (Capitalized  terms  used  in  this
Agreement and not defined herein but defined in the Merger  Agreement shall have
the meanings assigned thereto in the Merger Agreement); and

         WHEREAS,  as a condition and inducement to Grantee's  entering into the
Merger Agreement and in consideration therefor, Grantee has required that Issuer
agree, and Issuer has agreed, to grant Grantee the Option (as defined below);

         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:

         SECTION  1.  Grant of  Option.  Issuer  hereby  grants  to  Grantee  an
unconditional,  irrevocable  option (the  "Option") to purchase,  subject to the
terms hereof,  up to 531,043 fully paid and  nonassessable  shares of the common
stock,  par value $.01 per share, of Issuer ("Common Stock") at a price equal to
$18.87 (such price, as adjusted as hereinafter  provided,  the "Option  Price").
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.
In no event shall the number of shares of Common  Stock for which this Option is
exercisable exceed 19.9% of the number of shares of Common Stock then issued and
outstanding  (without  consideration of any shares of Common Stock subject to or
issued pursuant to the Option).

         SECTION 2. Exercise of Option.  (a) Grantee may exercise the Option, in
whole or part, at any time and from time to time  following the  occurrence of a
Purchase Event (as defined below);  provided that the Option shall terminate and
be of no further  force and effect  upon the  earliest  to occur of (i) the time
immediately  prior to the  Effective  Time,  (ii) a  termination  of the  Merger
Agreement in accordance  with the terms  thereof  prior to the  occurrence of an
Extension Event, other than a termination of the Merger Agreement by the Grantee
pursuant to Section  9.02(a)(2),  Section 9.02(c) or Section 9.02(d)(2) thereof,
or (iii) 12 months after a  termination  of the Merger  Agreement  following the
occurrence of an Extension  Event (as defined  below) or after a termination  of
the Merger Agreement by Grantee pursuant to Section 9.02(a)(2),  Section 9.02(c)
or Section 9.02(d)(2) thereof, and provided further, that any purchase of Common
Stock upon  exercise  of the Option  shall be subject  to  applicable  law,  and
provided further, that the Option may not be exercised,  nor may Grantee require
Issuer to repurchase  the Option (as set forth in Section 7 hereof),  if, at the
time of exercise or  repurchase,  Grantee is in material  breach of any material
covenant or  obligation  contained  in the Merger  Agreement  and, if the Merger
Agreement has not terminated prior thereto,  such breach would entitle Issuer to
terminate the Merger  Agreement.  The events described in clauses (i) - (iii) in
the  preceding  sentence are  hereinafter  collectively  referred to as Exercise
Termination Events. As provided in Section 8, the rights set forth therein shall
terminate upon an Exercise  Termination Event and, as provided in Sections 6 and
7 hereof,  the  rights to deliver  requests  pursuant  to  Sections 6 or 7 shall
terminate 12 months after an Exercise Termination Event,  subject, in such case,
to the provisions of Section 9.

         (b) The term "Extension  Event" shall mean any of the following  events
or transactions  occurring without the Grantee's prior written consent after the
date hereof:

                  (i)  Issuer  or any  of  its  subsidiaries  (each  an  "Issuer
Subsidiary"),  shall have entered into an agreement to engage in an  Acquisition
Transaction  (as defined  below) 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  "Securities
Exchange 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  shareholders  of Issuer  approve or
accept any  Acquisition  Transaction  with any person  other than Grantee or any
Grantee

                                      C-1
<PAGE>



Subsidiary. For purposes of this Agreement, "Acquisition Transaction" shall mean
(w) a merger or consolidation,  or any similar transaction,  involving Issuer or
any of Issuer's  banking  subsidiaries  ("Bank  Subsidiaries"),  (x) a purchase,
lease or other  acquisition of 10% or more of the aggregate  value of the assets
or  deposits  of  Issuer  or  any  Bank  Subsidiary,  (y) 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
or a Bank Subsidiary,  or (z) any substantially  similar transaction,  provided,
however,  that in no  event  shall  (i) any  merger,  consolidation  or  similar
transaction  involving  Issuer  or any  Bank  Subsidiary  in  which  the  voting
securities of Issuer outstanding immediately prior thereto continue to represent
(either by remaining  outstanding or being  converted into voting  securities of
the  surviving  entity of any such  transaction)  at least  75% of the  combined
voting  power of the voting  securities  of the Issuer or the  surviving  entity
outstanding  after the  consummation of such merger,  consolidation,  or similar
transaction,  or (ii) any internal merger or consolidation involving only Issuer
and/or 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) Any person (other than Grantee or any Grantee Subsidiary)
shall have  acquired  beneficial  ownership  or the right to acquire  beneficial
ownership of securities  representing  10% or more of the aggregate voting power
of Issuer or any Bank Subsidiary (the term  "beneficial  ownership" for purposes
of this Agreement  having the meaning  assigned  thereto in Section 13(d) of the
Securities Exchange Act, and the rules and regulations thereunder);

                  (iii) Any person other than Grantee or any Grantee  Subsidiary
shall have made a bona fide  proposal to Issuer or its  shareholders,  by public
announcement or written  communication  that is or becomes the subject of public
disclosure,  to  engage  in  an  Acquisition  Transaction  (including,   without
limitation,  any situation in which any person other than Grantee or any Grantee
Subsidiary shall have commenced (as such term is defined in Rule 14d-2 under the
Exchange Act), or shall have filed a registration statement under the Securities
Act of 1933, as amended (the "Securities  Act"), with respect to, a tender offer
or  exchange  offer to  purchase  any shares of Common  Stock  such  that,  upon
consummation  of  such  offer,  such  person  would  own or  control  securities
representing  10% or more of the  aggregate  voting  power of Issuer or any Bank
Subsidiary);

                  (iv)  After any  person  other  than  Grantee  or any  Grantee
Subsidiary  has made or  disclosed  an intention to make a proposal to Issuer or
its  shareholders  to engage in an  Acquisition  Transaction,  Issuer shall have
breached any covenant or obligation  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);

                  (v) Any person  other than  Grantee or any Grantee  Subsidiary
shall have filed an application  with, or given a notice to, whether in draft or
final form,  the Board of Governors of the Federal  Reserve System (the "Federal
Reserve Board") or other governmental  authority or regulatory or administrative
agency or commission,  domestic or foreign (each, a  "Governmental  Authority"),
for approval to engage in an Acquisition Transaction;

                  (vi) A meeting of  shareholders  shall not have been called by
the Board of Directors of Issuer in  accordance  with Section 4.03 of the Merger
Agreement or held or shall have been  canceled,  or Issuer's  Board of Directors
shall have withdrawn or modified in a manner adverse to the  consummation of the
Merger  its  unanimous  recommendation  of the  Merger  or made an  announcement
prospectively with respect to such a withdrawal or modification; or

                  (vii) any Purchase Event (as defined below), other than events
described at Section 2(c)(iii).

         (c) The term "Purchase Event" shall mean either of the following events
or transactions occurring after the date hereof:

                  (i) The  acquisition  by any person  other than Grantee or any
Grantee  Subsidiary of beneficial  ownership of securities  representing  25% or
more of the aggregate voting power of Issuer or any Bank Subsidiary;

                  (ii) An occurrence of the event described in Section  2(b)(i),
except that for purposes of determining  whether the event  described in Section
2(b)(i)  has  occurred  for  purposes  of this  subsection  (ii) the  percentage
referred to in clauses (x) and (y) of the definition of Acquisition  Transaction
which is incorporated into said Section 2(b)(i) shall be 25%; or

                                       C-2

<PAGE>



                  (iii) the holders of Common Stock shall not have  approved the
Merger  Agreement  at the meeting of such  shareholders  held for the purpose of
voting on the Merger  Agreement,  such meeting shall not have been called by the
Board of  Directors  of Issuer in  accordance  with  Section  4.03 of the Merger
Agreement or held or shall have been  canceled,  or Issuer's  Board of Directors
shall have withdrawn or modified in a manner adverse to the  consummation of the
Merger  its  unanimous  recommendation  of the  Merger  or made an  announcement
prospectively  with respect to such a withdrawal or  modification;  in each case
after an Extension Event other than any event described at Section 2 (b)(vi)

         (d) Issuer shall notify  Grantee  promptly in writing of the occurrence
of any Extension Event or Purchase Event;  provided however,  that the giving of
such  notice  by Issuer  shall not be a  condition  to the right of  Grantee  to
exercise the Option.

         (e) In the event that Grantee 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 of
Common Stock it will purchase  pursuant to such exercise,  (ii) a place and date
not earlier than three  business  days nor later than 90 business  days from the
Notice Date for the closing of such purchase (the "Closing Date") and (iii) that
the  proposed  exercise of the Option shall be revocable by Grantee in the event
that the  transaction  constituting  a  Purchase  Event  that gives rise to such
written notice shall not have been consummated  prior to exercise of the Option;
provided that if prior  notification to or approval of the Federal Reserve Board
or any  other  Governmental  Authority  is  required  in  connection  with  such
purchase,  Grantee shall promptly file the required  notice or  application  for
approval  and shall  expeditiously  process the same and the period of time that
otherwise  would run pursuant to this  sentence  shall run from the later of (x)
the date on  which  any  required  notification  periods  have  expired  or been
terminated  and (y) the date on which such  approvals have been obtained and any
requisite waiting period or periods shall have expired.  For purposes of Section
2(a),  any  exercise  of the Option  shall be deemed to occur on the Notice Date
relating  thereto.  Grantee shall have the right to revoke its proposed exercise
of the Option in the event that the  transaction  constituting  a Purchase Event
that gives rise to such right to exercise shall not have been consummated  prior
to  exercise  of the  Option,  pursuant  to the  statement  of such right in the
written notice exercising the Option as provided in clause 2(e)(iii) above.

         (f) At the closing referred to in Section 2(e), Grantee shall surrender
this Agreement  (and the Option granted  hereby) to Issuer and pay to Issuer the
aggregate Option 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,  however,  that failure or refusal of
Issuer  to  designate  such a bank  account  shall  not  preclude  Grantee  from
exercising the Option.

         (g) At such closing,  simultaneously with the delivery of the aggregate
Option Price in immediately  available funds as provided in Section 2(f), Issuer
shall deliver to Grantee a certificate or certificates  representing  the number
of shares of Common  Stock  purchased  by Grantee  and, if the Option  should be
exercised in part only, a new Option Agreement  granting a new Option evidencing
the rights of Grantee  thereof to  purchase  the balance of the shares of Common
Stock purchasable hereunder.

         (h)  Certificates  for Common Stock  delivered  at a closing  hereunder
shall be endorsed with a restrictive legend substantially as follows:

         "The transfer of the shares  represented by this certificate is subject
         to resale  restrictions  arising under the  Securities  Act of 1933, as
         amended,  and to certain  provisions  of an  agreement  between  Summit
         Bancorp.  and NMBT CORP ("Issuer")  dated as of the 4th day of October,
         1999. A copy of such  agreement is on file at the  principal  office of
         Issuer and will be provided to the holder  hereof  without  charge upon
         receipt by Issuer of a written request therefor."

It is understood and agreed that:  (i) the reference to the resale  restrictions
of the  Securities  Act in the above  legend  shall be  removed by  delivery  of
substitute certificate(s) without such reference if Grantee shall have delivered
to  Issuer a copy of a letter  from the  staff of the  Securities  and  Exchange
Commission  (the  "SEC"),  or an  opinion  of  counsel,  in form  and  substance
reasonably  satisfactory  to  Issuer,  to the  effect  that  such  legend is not
required  for  purposes  of  the  Securities  Act;  (ii)  the  reference  to the
provisions of this Agreement in the above legend shall be removed by delivery of
substitute certificate(s) without such reference if the shares have been sold or
transferred  in  compliance  with the  provisions  of this  Agreement  and under
circumstances that do not require the retention of such reference; and (iii) the
legend shall be removed in its entirety

                                       C-3

<PAGE>



if the conditions in the preceding  clauses (i) and (ii) are both satisfied.  In
addition,  such  certificates  shall bear any other legend as may be required by
law.

         (i) Upon the  giving by  Grantee  to Issuer  of the  written  notice of
exercise  of the  Option  provided  for in  Section  2(e) and the  tender of the
aggregate  Option  Price on the Closing  Date in  immediately  available  funds,
Grantee 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  actually be delivered to Grantee.  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 Grantee or
its nominee.

         SECTION 3. Reservation of Shares.  Issuer agrees:  (i) that it shall at
all times until the  termination  of this  Agreement  have reserved for issuance
upon the exercise of the Option that number of authorized shares of Common Stock
equal to the maximum  number of shares of Common Stock at any time and from time
to time issuable  hereunder,  all of which shares will,  upon issuance  pursuant
hereto,  be duly  authorized,  validly issued,  fully paid,  nonassessable,  and
delivered  free and  clear  of all  claims,  liens,  encumbrances  and  security
interests and not subject to any  preemptive  rights;  (ii) that it will not, by
amendment  of  its   certificate  or  articles  of   incorporation   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. ss. 18a and regulations
promulgated  thereunder and (y) in the event, under the Bank Holding Company Act
of 1956, as amended (the "BHC Act"),  or the Change in Bank Control Act of 1978,
as amended, or any state banking law, prior approval of or notice to the Federal
Reserve  Board or to any other  Governmental  Authority is necessary  before the
Option may be exercised, cooperating with Grantee in preparing such applications
or notices and providing such  information to the Federal Reserve Board and each
other Governmental  Authority as they may require) in order to permit Grantee to
exercise  the Option and Issuer duly and  effectively  to issue shares of Common
Stock pursuant  hereto;  and (iv) to take all action  provided herein to protect
the rights of Grantee against dilution.

         SECTION 4. Division of Option.  This  Agreement (and the Option granted
hereby)  are  exchangeable,  without  expense,  at the option of  Grantee,  upon
presentation  and surrender of this Agreement at the principal office of Issuer,
for other agreements providing for Options of different  denominations 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 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.

         SECTION 5.  Adjustment  upon  Change of  Capitalization.  The number of
shares of Common  Stock  purchasable  upon the  exercise of the Option  shall be
subject to adjustment from time to time as follows:

         (a)  Subject  to the last  sentence  of  Section 1, in the event of any
change in the Common  Stock by reason of stock  dividends,  split-ups,  mergers,
recapitalizations,  combinations, subdivisions, conversions, exchanges of shares
or the like,  the type and  number of shares of Common  Stock  purchasable  upon
exercise hereof shall be  appropriately  adjusted and proper  provision shall be
made so that, in the event that any additional  shares of Common Stock are to be
issued or otherwise to become  outstanding as a result of any such change (other
than  pursuant  to an exercise  of the  Option),  the number of shares of Common
Stock that remain  subject to the Option shall be increased so that,  after such
issuance and together with shares of Common Stock previously  issued pursuant to
the  exercise  of the Option  (as  adjusted  on account of any of the  foregoing
changes in the Common Stock),  it equals 19.9% of the number of shares of Common
Stock then issued and outstanding (without consideration of any shares of Common
Stock subject to or issued pursuant to the Option).

         (b)  Whenever  the number of shares of Common  Stock  purchasable  upon
exercise  hereof is adjusted as  provided  in this  Section 5, the Option  Price
shall be adjusted by multiplying the Option Price by a fraction, the numerator

                                       C-4

<PAGE>



of which  shall be equal to the  number of shares  of Common  Stock  purchasable
prior to the  adjustment  and the  denominator  of  which  shall be equal to the
number of shares of Common Stock purchasable  after the adjustment.  In no event
shall the  Option  Price be  adjusted  to less than the par value of the  Common
Stock to be issued at such Option Price.

         (c) It is intended by the parties hereto that the adjustments  provided
by this Section 5 shall fully  preserve the economic  benefits of this Agreement
for Grantee.

         SECTION 6.        Registration Rights.

         (a) Demand  Registration  Rights.  After the  occurrence  of a Purchase
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  the  Option  (or  part  thereof)  delivered  prior  to  an  Exercise
Termination  Event or at the  request of a holder of any of the shares of Common
Stock  issued  pursuant  hereto)  delivered  no later  than 12  months  after an
Exercise  Termination  Event,   promptly  prepare,   file  and  keep  current  a
registration  statement on such form as is available  and the Issuer is eligible
to use under the Securities Act relating to a delayed or continuous offering (as
contemplated  by Rule 415 of the SEC under the  Securities  Act or any successor
rule or regulation) (a "shelf registration") covering this Option and any shares
issued and issuable  pursuant to the Option (the "Option  Shares") and shall use
its best efforts to cause such  registration  statement to become  effective and
remain  current and to qualify  this  Option or any such Option  Shares or other
securities  for sale  under any  applicable  state  securities  laws in order to
permit the sale or other  disposition  of this  Option or any  Option  Shares in
accordance with any plan of disposition requested by Grantee; provided, however,
that  Issuer  may  postpone  filing  a  registration  statement  relating  to  a
registration  request by Grantee  under this Section 6 for a period of time (not
in  excess  of 90  days)  if in its  judgment  such  filing  would  require  the
disclosure of material  information that Issuer has a bona fide business purpose
for preserving as  confidential.  Issuer will use its best efforts to cause such
registration  statement first to become  effective as soon as practicable  after
the filing thereof and then 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  necessary  to  effect  such  sales  or  other
dispositions.  Grantee  shall have the right to demand  two such  registrations.
Grantee  shall  provide  all  information  reasonably  requested  by Issuer  for
inclusion in any  registration  statement to be filed  hereunder.  In connection
with any such  registration,  Issuer and Grantee  shall  provide each other with
representations,   warranties,   and  other  agreements   customarily  given  in
connection  with such  registrations.  If requested by any Grantee in connection
with  such  registration,  Issuer  and  Grantee  shall  become  a  party  to any
underwriting  agreement  relating to the sale of Option Shares,  but only to the
extent of  obligating  themselves  in  respect of  representations,  warranties,
indemnities  and other  agreements  customarily  included  in such  underwriting
agreements.  Notwithstanding  the  foregoing,  if Grantee  revokes any  exercise
notice or fails to  exercise  any Option  with  respect to any  exercise  notice
pursuant  to  Section  2(e),  Issuer  shall not be  obligated  to  continue  any
registration process with respect to the sale of Option Shares.

         (b) Additional  Persons With  Registration  Rights.  Upon receiving any
request  under this  Section 6 from any  Grantee,  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.

         (c)  Expenses.   Except  where  applicable  state  law  prohibits  such
payments,   Issuer  will  pay  all  expenses   (including   without   limitation
registration fees, qualification fees, blue sky fees and expenses (including the
fees and expenses of counsel), legal expenses, including the reasonable fees and
expenses of one counsel to the holders whose Option Shares are being registered,
printing  expenses and the costs of special  audits or "cold  comfort"  letters,
expenses of  underwriters,  excluding  discounts and  commissions  but including
liability insurance if Issuer so desires or the underwriters so require, and the
reasonable  fees and expenses of any  necessary  special  experts) in connection
with each  registration  pursuant  to this  Section  6  (including  the  related
offerings and sales by holders of Option  Shares) and all other  qualifications,
notification or exemptions pursuant to Section 6.

         (d)  Indemnification.  In connection with any  registration  under this
Section 6, Issuer hereby indemnifies the Grantee, and each officer, director and
controlling  person of Grantee,  and each  underwriter  thereof,  including each
person,  if any who controls  such holder or  underwriter  within the meaning of
Section 15 of the Securities Act, against all expenses,  losses, claims, damages
and liabilities caused by any untrue, or alleged untrue,  statement contained in
any registration

                                       C-5

<PAGE>



statement or prospectus or  notification  or offering  circular  (including  any
amendments or supplements thereto) or any preliminary  prospectus,  or caused by
any omission,  or alleged omission, to state therein a material fact required to
be stated  therein or necessary to make the statements  therein not  misleading,
except insofar as such expenses,  losses, claims, damages or liabilities of such
indemnified party are caused by any untrue statement or alleged untrue statement
that was included by Issuer in any such registration  statement or prospectus or
notification  or offering  circular  (including  any  amendments or  supplements
thereto) in reliance  upon and in  conformity  with,  information  furnished  in
writing to Issuer by such  indemnified  party  expressly  for use  therein,  and
Issuer and each  officer,  director  and  controlling  person of Issuer shall be
indemnified by such Grantee, or by such underwriter, as the case may be, for all
such expenses,  losses, claims, damages and liabilities caused by any untrue, or
alleged untrue,  statement, that was included by Issuer in any such registration
statement or prospectus or  notification  or offering  circular  (including  any
amendments or supplements  thereto) in reliance  upon,  and in conformity  with,
information  furnished in writing to Issuer by such holder or such  underwriter,
as the case may be, expressly for such use.

         Promptly upon receipt by a party indemnified under this Section 6(d) of
notice of the  commencement  of any action  against  such  indemnified  party in
respect  of  which  indemnity  or  reimbursement   may  be  sought  against  any
indemnifying  party under this Section 6(d), such indemnified party shall notify
the indemnifying  party in writing of the  commencement of such action,  but the
failure  so to  notify  the  indemnifying  party  shall  not  relieve  it of any
liability  which it may  otherwise  have to any  indemnified  party  under  this
Section 6(d). In case notice of  commencement  of any such action shall be given
to the indemnifying  party as above provided,  the  indemnifying  party shall be
entitled  to  participate  in and, to the extent it may wish,  jointly  with any
other  indemnifying  party  similarly  notified,  to assume the  defense of such
action at its own expense, with counsel chosen by it and reasonably satisfactory
to such indemnified  party. The indemnified party shall have the right to employ
separate counsel in any such action and participate in the defense thereof,  but
the  fees  and  expenses  of  such  counsel  (other  than  reasonable  costs  of
investigation)   shall  be  paid  by  the  indemnified   party  unless  (i)  the
indemnifying  party either agrees to pay the same, (ii) the  indemnifying  party
fails to assume the  defense of such  action with  counsel  satisfactory  to the
indemnified  party, or (iii) the  indemnified  party has been advised by counsel
that one or more legal defenses may be available to the indemnifying  party that
may be contrary to the interests of the indemnified party. No indemnifying party
shall be liable for the fees and expenses of more than one separate  counsel for
all indemnified  parties or for any settlement entered into without its consent,
which consent may not be unreasonably withheld.

         If the indemnification provided for in this Section 6(d) is unavailable
to a party  otherwise  entitled to be  indemnified  in respect of any  expenses,
losses, claims, damages or liabilities referred to herein, then the indemnifying
party, in lieu of indemnifying such party otherwise  entitled to be indemnified,
shall  contribute to the amount paid or payable by such party to be  indemnified
as a result of such  expenses,  losses,  claims,  damages or liabilities in such
proportion  as is  appropriate  to reflect  the  relative  fault of Issuer,  the
Grantee and the  underwriters  in  connection  with the  statements or omissions
which resulted in such expenses, losses, claims, damages or liabilities, as well
as any other relevant equitable considerations.  The amount paid or payable by a
party as a result of the  expenses,  losses,  claims,  damages  and  liabilities
referred to above shall be deemed to include any legal or other fees or expenses
reasonably  incurred by such party in connection with investigating or defending
any action or claim;  provided,  however,  that in no case shall any  Grantee be
responsible,  in the  aggregate,  for any  amount in excess of the net  offering
proceeds  attributable to its Option Shares included in the offering.  No person
guilty of fraudulent  misrepresentation  (within the meaning of Section 11(f) of
the Securities  Act) shall be entitled to  contribution  from any person who was
not guilty of such fraudulent  misrepresentation.  Any obligation by any Grantee
to indemnify shall be several and not joint with other Grantees.

         (e)  Miscellaneous  Reporting.  Issuer shall comply with all  reporting
requirements and will do all such other things as may be necessary to permit the
expeditious  sale at any time of any  Option  Shares by the  Grantee  thereof in
accordance  with  and  to  the  extent  permitted  by  any  rule  or  regulation
promulgated by the SEC from time to time,  including,  without limitation,  Rule
144A.  Issuer  shall at its expense  provide the  Grantee  with any  information
necessary in connection  with the  completion and filing of any reports or forms
required to be filed by Grantee under the Securities Act or the Exchange Act, or
required  pursuant  to any  state  securities  laws or the  rules  of any  stock
exchange.

         SECTION 7.  Repurchase at the Option of Grantee or Owner.  (a) Upon the
occurrence  of a Repurchase  Event (as defined  below),  (i) at the request (the
date of such request being the "Request Date") of Grantee, delivered prior to an
Exercise  Termination Event,  Issuer (or any successor thereto) shall repurchase
the Option from Grantee 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 (the date

                                       C-6

<PAGE>
of such  request  being the "Request  Date") of the owner of Option  Shares from
time to time (the  "Owner"),  delivered  within 12 months of the occurrence of a
Repurchase  Event (or such later period as provided in Section 9),  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
after the date  hereof and on or prior to the Request  Date,  (ii) the price per
share of Common  Stock  paid or to be paid by any  third  party  pursuant  to an
agreement with Issuer (whether by way of a merger,  consolidation or otherwise),
(iii) the highest  last sale price for shares of Common  Stock within the 90-day
period  ending on the  Request  Date  quoted on the Nasdaq  National  Market (as
reported  by The Wall  Street  Journal,  or, if not  reported  thereby,  another
authoritative  source),  (iv) in the event of a sale of all or substantially all
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 independent investment banking firm selected by Grantee or
the Owner,  as the case may be,  divided by the number of shares of Common Stock
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 independent investment banking firm selected by Grantee or
the Owner,  as the case may be,  whose  determination  shall be  conclusive  and
binding on all parties.

         (b) Grantee or the Owner, as the case may be, may exercise its right to
require  Issuer to repurchase  the Option  and/or any Option Shares  pursuant to
this  Section 7 by  surrendering  for such purpose to Issuer,  at its  principal
office,  a copy  of  this  Agreement  or  certificates  for  Option  Shares,  as
applicable,  accompanied by a written notice or notices  stating that Grantee 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 the later to occur of (x) 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 and (y)
the time that is  immediately  prior to the  occurrence  of a Repurchase  Event,
Issuer shall  deliver or cause to be delivered to Grantee the Option  Repurchase
Price or to the Owner the Option Share  Repurchase Price therefor or the portion
thereof that Issuer is not then prohibited from so delivering  under  applicable
law and regulation.

         (c) Issuer hereby  undertakes to use its  reasonable  efforts to obtain
all required  regulatory and legal approvals and to file any required notices as
promptly as practicable in order to accomplish  any repurchase  contemplated  by
this  Section 7.  Nonetheless,  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  promptly so notify  Grantee  and/or the Owner and
thereafter  deliver  or cause to be  delivered,  from time to time,  to  Grantee
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 any time  after
delivery of a notice of repurchase  pursuant to Section 7(b) is prohibited under
applicable law or regulation,  from  delivering to Grantee and/or the Owner,  as
appropriate,  the Option  Repurchase Price or the Option Share Repurchase Price,
respectively,  in full or in any  substantial  part,  Grantee or the  Owner,  as
appropriate,  may revoke its  notice of  repurchase  of the Option or the Option
Shares  either in whole or in part  whereupon,  in the case of a  revocation  in
part,  Issuer  shall  promptly  (i)  deliver  to Grantee  and/or  the Owner,  as
appropriate,  that  portion of the  Option  Purchase  Price or the Option  Share
Repurchase Price that Issuer is not prohibited from delivering after taking into
account any such  revocation  and (ii) deliver,  as  appropriate,  either (A) to
Grantee, a new Agreement evidencing the right of Grantee to purchase that number
of shares  of  Common  Stock  equal to the  number  of  shares  of Common  Stock
purchasable  immediately  prior to the delivery of the notice of repurchase less
the  number of shares of Common  Stock  covered  by the  portion  of the  Option
repurchased or (B) to the Owner,  a certificate  for the number of Option Shares
covered by the revocation.

         (d) For purposes of this Section 7, a Repurchase  Event shall be deemed
to have  occurred  (i)  upon the  consummation  of any  Acquisition  Transaction
involving  Issuer or any Bank  Subsidiary  or (ii) upon the  acquisition  by any
person of  beneficial  ownership of securities  representing  25% or more of the
aggregate voting power of Issuer or any Bank  Subsidiary,  provided that no such
event shall  constitute a Repurchase  Event unless an Extension Event shall have
occurred prior to an Exercise  Termination  Event. The parties hereto agree that
Issuer's  obligations  to  repurchase  the  Option or Option  Shares  under this
Section 7 shall not terminate  upon the  occurrence  of an Exercise  Termination
Event if an Extension  Event shall have occurred  prior to the  occurrence of an
Exercise Termination Event.

         (e) Issuer  shall not enter into any  agreement  with any party  (other
than Grantee or a Grantee Subsidiary) for an Acquisition  Transaction unless the
other party  thereto  assumes  all the  obligations  of Issuer  pursuant to this
Section 7 in the event that Grantee or the Owner elects, in its sole discretion,
to require such other party to perform such obligations.

                                       C-7
<PAGE>



         SECTION 8. Substitute Option in the Event of Corporate  Change.  (a) In
the event that prior to an Exercise  Termination Event,  Issuer shall enter into
an agreement (i) to consolidate or merge with any person,  other than Grantee or
a Grantee Subsidiary,  and shall not be the continuing or surviving  corporation
of such consolidation or merger,  (ii) to permit any person,  other than Grantee
or a Grantee Subsidiary, 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 aggregate  voting power 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 a Grantee  Subsidiary,  then,  and in each such case,  the
agreement  governing such  transaction  shall make proper  provision so that the
Option shall,  upon the  consummation of 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 Grantee,  of either (x) the Acquiring
Corporation  (as defined  below) or (y) any person that  controls the  Acquiring
Corporation  (the Acquiring  Corporation and any such  controlling  person being
hereinafter referred to as the Substitute Option Issuer)

         (b) The  Substitute  Option  shall be  exercisable  for such  number of
shares of the Substitute Common Stock (as is hereinafter defined) as is equal to
the  market/offer  price (as defined in Section 7)  multiplied  by the number of
shares of the Common  Stock for which the Option  was  theretofore  exercisable,
divided by the Average Price (as is  hereinafter  defined) The exercise price of
the Substitute  Option per share of the Substitute Common Stock (the "Substitute
Purchase  Price")  shall  then be  equal to the  Option  Price  multiplied  by a
fraction in which the  numerator is the number of shares of the Common Stock for
which the Option was  theretofore  exercisable and the denominator is the number
of shares  of  Substitute  Common  Stock  for  which  the  Substitute  Option is
exercisable.

         (c) The  Substitute  Option shall  otherwise 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 Grantee, provided further that the terms of
the  Substitute  Option  shall  include (by way of example  and not  limitation)
provisions  for the repurchase of the  Substitute  Option and Substitute  Common
Stock by the  Substitute  Option  Issuer  on the same  terms and  conditions  as
provided in Section 7.

         (d) The following terms have the meanings indicated:

                  (i) "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,  and (iii) the transferee of all or any
         substantial  part of the  Issuer's  assets  (or the  assets  of  Issuer
         Subsidiaries).

                  (ii)  "Substitute  Common  Stock"  shall mean the common stock
         issued by the Substitute  Option Issuer upon exercise of the Substitute
         Option.

                  (iii)  "Average  Price" shall mean the average last sale price
         of a share of the  Substitute  Common  Stock (as  reported  by The Wall
         Street Journal or, if not reported  therein,  by another  authoritative
         source)  for the one  year  immediately  preceding  the  consolidation,
         merger or sale in  question,  but in no event higher than the last sale
         price of the shares of the 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 Issuer,  the person
         merging into Issuer or by any company  which  controls or is controlled
         by such person, as Grantee may elect.

         (e) In no event, pursuant to any of the foregoing paragraphs, shall the
Substitute  Option be  exercisable  for more than 19.9% of the  aggregate of the
shares of the Substitute  Common Stock  outstanding prior to the exercise of the
Substitute  Option. In the event that the Substitute Option would be exercisable
for more than 19.9% of the  aggregate of the shares of  Substitute  Common Stock
but for this clause (e), the Substitute  Option Issuer shall make a cash payment
to Grantee equal to the excess of (i) the value of the Substitute Option without
giving  effect to the  limitation  in this clause (e) over (ii) the value of the
Substitute  Option after giving effect to the limitation in the clause (e). This
difference in value shall be determined  by a nationally  recognized  investment
banking firm selected by Grantee and the Substitute Option Issuer.

         SECTION 9. Extension of Time for Regulatory Approvals.  Notwithstanding
Sections 2(e), 6, 7 and 11, if

                                       C-8

<PAGE>



Grantee has given the notice  referred to in one or more of such  Sections,  the
exercise of the rights  specified in any such  Section  shall be extended (a) if
the exercise of such rights  requires  obtaining  regulatory  approvals,  to the
extent  necessary to obtain all  regulatory  approvals  for the exercise of such
rights,  and (b) to the extent  necessary to avoid liability under Section 16(b)
of the Securities  Exchange Act by reason of such exercise;  provided that in no
event shall any closing date occur more than 18 months after the related  Notice
Date, and, if the closing date shall not have occurred within such period due to
the failure to obtain any required  approval by the Federal Reserve Board or any
other  Governmental  Authority  despite the reasonable  efforts of Issuer or the
Substitute  Option  Issuer,  as the case may be, to obtain such  approvals,  the
exercise of the Option shall be deemed to have been  rescinded as of the related
Notice Date. In the event (a) Grantee receives  official notice that an approval
of the Federal Reserve Board or any other  Governmental  Authority  required for
the purchase and sale of the Option  Shares will not be issued or granted or (b)
a closing date has not occurred  within 18 months after the related  Notice Date
due to the  failure  to obtain  any such  required  approval,  Grantee  shall be
entitled  to  exercise  the Option in  connection  with the resale of the Option
Shares  pursuant to a  registration  statement as provided in Section 6. Nothing
contained in this Agreement shall restrict  Grantee from specifying  alternative
exercising of rights pursuant to Sections 2(e), 6, 7 and 11, hereof in the event
that the  exercising  of any such  rights  shall  not have  occurred  due to the
failure to obtain any required approval referred to in this Section 9.

         SECTION 10. Issuer Warranties. Issuer hereby represents and warrants to
Grantee as follows:

         (a) Issuer has the requisite  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  approved  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  executed  and  delivered  by, and
constitutes  a valid and binding  obligation  of,  Issuer,  enforceable  against
Issuer in accordance  with its terms,  except as  enforceability  thereof may be
limited by applicable  bankruptcy,  insolvency,  reorganization,  moratorium and
other similar laws affecting the enforcement of creditors'  rights generally and
institutions the deposits of which are insured by the Federal Deposit  Insurance
Corporation and except that the availability of the equitable remedy of specific
performance  or  injunctive  relief is  subject to the  discretion  of the court
before which any proceeding may be brought.

         (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,
encumbrances and security interests and not subject to any preemptive rights.

         (c) Upon receipt of the necessary  regulatory approvals as contemplated
by this  Agreement,  the execution,  delivery and  performance of this Agreement
does not or will not, and the  consummation by Issuer of any of the transactions
contemplated  hereby will not, constitute or result in (i) a breach or violation
of, or a default under, its certificate or articles of incorporation or by-laws,
or the comparable  governing  instruments of any of its subsidiaries,  or (ii) a
breach or violation of, or a default  under,  any  agreement,  lease,  contract,
note, mortgage,  indenture,  arrangement or other obligation of it or any of its
subsidiaries  (with or without the giving of notice,  the lapse of time or both)
or under any law,  rule,  ordinance or  regulation or judgment,  decree,  order,
award or governmental or  non-governmental  permit or license to which it or any
of its subsidiaries is subject, that would in any case give any other person the
ability to prevent or enjoin  Issuer's  performance  under this Agreement in any
material respect.

         SECTION 11. Assignment of Option by Grantee. (a) Neither of the parties
hereto may assign any of its rights or  delegate  any of its  obligations  under
this Agreement or the Option  created  hereunder to any other person without the
express written consent of the other party,  except that Grantee may assign this
Agreement or any of its rights  hereunder in whole or in part (i) at any time to
a subsidiary of Grantee,  and (ii) after the  occurrence of a Purchase  Event to
any Person; provided, however, that until the date 15 days following the date at
which the Federal Reserve Board approves an application by Grantee under the BHC
Act to acquire the shares of Common Stock subject to the Option, Grantee may not
assign  its  rights  under the Option  except in (A) a widely  dispersed  public
distribution,  (B) a private  placement in which no one party acquires the right
to purchase  securities  representing  in excess of 2% of the  aggregate  voting
power  of  Issuer,  (C) an  assignment  to a single  party  (e.g.,  a broker  or
investment banker) for the purpose of conducting a widely dispersed public

                                       C-9

<PAGE>



distribution  on  Grantee's  behalf,  or (D) any other  manner  approved  by the
Federal Reserve Board.  Grantee will pay any reasonable  out-of-pocket costs and
expenses of Issuer in connection with any such assignment. The term "Grantee" as
used in this  Agreement  shall  also be deemed to refer to  Grantee's  permitted
assigns.

         (b) Any  assignment of rights of Grantee to any  permitted  assignee of
Grantee  hereunder  shall bear the restrictive  legend at the beginning  thereof
substantially as follows:

         "The  transfer of the option  represented  by this  assignment  and the
         related  option  agreement  is subject to resale  restrictions  arising
         under the Securities Act of 1933, as amended and to certain  provisions
         of an agreement between Summit Bancorp.  and NMBT CORP ("Issuer") dated
         as of the 4th day of October, 1999. A copy of such agreement is on file
         at the principal office of Issuer and will be provided to any permitted
         assignee  of the  Option  without  change  upon  receipt by Issuer of a
         written request therefor."

It is understood and agreed that (i) the reference to the resale restrictions of
the  Securities  Act in the  above  legend  shall  be  removed  by  delivery  of
substitute assignments without such reference if Grantee shall have delivered to
Issuer a copy of a letter  from the staff of the SEC,  or an opinion of counsel,
in form and substance  satisfactory to Issuer, to the effect that such legend is
not required  for  purposes of the  Securities  Act;  (ii) the  reference to the
provisions of this Agreement in the above legend shall be removed by delivery of
substitute  assignments  without  such  reference if the Option has been sold or
transferred  in  compliance  with the  provisions  of this  Agreement  and under
circumstances that do not require the retention of such reference; and (iii) the
legend  shall be removed in its  entirety  if the  conditions  in the  preceding
clauses (i) and (ii) are both satisfied.  In addition,  such  assignments  shall
bear any other legend as may be required by law.

         SECTION 12. Application for Regulatory Approval. If Grantee is entitled
to exercise the Option and has sent a notice to Issuer pursuant to Section 2(e),
each of Grantee and Issuer will use its  reasonable  efforts to make all filings
with, and to obtain consents of, all third parties and the Federal Reserve Board
and  other  Governmental  Authorities  necessary  to  the  consummation  of  the
transactions  contemplated by this  Agreement,  including,  without  limitation,
making  application for listing or quotation,  as the case may be, of the shares
of Common Stock  issuable  hereunder on the NASDAQ  National  Market  System and
applying to the  Federal  Reserve  Board under the BHC Act and to state  banking
authorities for approval to acquire the shares issuable hereunder.

         SECTION 13. Specific  Performance.  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 shall hereto be enforceable
by either  party hereto  through  injunctive  or other  equitable  relief.  Both
parties  further agree to waive any  requirement  for the securing or posting of
any bond in connection with the obtaining of any such equitable  relief and that
this provision is without  prejudice to any other rights that the parties hereto
may have for any failure to perform this Agreement.

         SECTION  14.  Separability  of  Provisions.  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 Grantee 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 (as adjusted  pursuant  hereto),
it is the express  intention of Issuer to allow Grantee to acquire or to require
Issuer to repurchase such lesser number of shares as may be permissible, without
any amendment or modification hereof.

         SECTION 15. 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.

         SECTION 16.  Governing  Law.  This  Agreement  shall be governed by and
construed in accordance with the laws of the State of New Jersey.

         SECTION 17. Counterparts. This Agreement may be executed in two or more
counterparts,  each of which shall be deemed to be an original, but all of which
shall constitute one and the same agreement.


                                      C-10

<PAGE>



         SECTION 18. 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.

         SECTION 19. Entire Agreement; No Third-Party  Beneficiaries.  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  assigns,  any
rights,  remedies,  obligations  or  liabilities  under  or by  reason  of  this
Agreement, except as expressly provided herein.

         SECTION 20. Merger Agreement. Nothing contained in this Agreement shall
be deemed to authorize  Issuer or Grantee to breach any  provision of the Merger
Agreement.

         SECTION 21.  Majority in Interest.  In the event that any  selection or
determination is to be made by Grantee or the Owner hereunder and at the time of
such selection or  determination  there is more than one Grantee or Owner,  such
selection shall be made by a majority in interest of such Grantees or Owners.

         SECTION 22.  Further  Assurances.  In the event of any  exercise of the
Option by Grantee,  Issuer and such Grantee  shall execute and deliver all other
documents  and  instruments  and take all other  action  that may be  reasonably
necessary in order to consummate the transactions provided for by such exercise.

         SECTION  23. No Rights as  Shareholder.  Except to the  extent  Grantee
exercises the Option,  Grantee shall have no rights to vote or receive dividends
or have any other rights as a shareholder with respect to shares of Common Stock
covered hereby.

         SECTION 24. Grantee Representation. The Option and any Option Shares or
other securities  acquired by Grantee upon exercise of the Option are not being,
and  will  not be,  as the  case  may  be,  acquired  with a view to the  public
distribution  thereof in the United  States except as provided for in Sections 6
and 11 hereof and neither the Option nor any Option  Shares or other  securities
acquired by Grantee upon exercise of the Option will be transferred or otherwise
disposed  of by  Grantee  except in a  transaction  registered  or  exempt  from
registration under the Securities Act.





                                      C-11

<PAGE>


         IN WITNESS  WHEREOF,  each of the parties has caused this Stock  Option
Agreement  to be  executed  on its  behalf  by  their  officers  thereunto  duly
authorized, all as of the date first above written.

                                    Summit Bancorp.

                                    By       /s/ John G. Collins
                                             John G. Collins
                                             Vice Chairman

                                    NMBT CORP

                                    By       /s/ Michael D. Carrigan
                                             Michael D. Carrigan
                                             President & Chief Executive Officer





                                      C-12
<PAGE>

                                                                      APPENDIX D

                                APPRAISAL RIGHTS

                        DELAWARE GENERAL CORPORATION LAW

                                   SECTION 262

                        DELAWARE GENERAL CORPORATION LAW

      262 Appraisal Rights--(a) Any stockholder of a corporation of this State
who holds shares of stock on the date of the making of a demand pursuant to
subsection (d) of this section with respect to such shares, who continuously
holds such shares through the effective date of the merger or consolidation, who
has otherwise complied with subsection (d) of this section and who has neither
voted in favor of the merger or consolidation nor consented thereto in writing
pursuant to sec. 228 of this title shall be entitled to an appraisal by the
Court of Chancery of the fair value of the stockholder's shares of stock under
the circumstances described in subsections (b) and (c) of this section. As used
in this section, the word "stockholder" means a holder of record of stock in a
stock corporation and also a member of record of a nonstock corporation: the
words "stock" and "share" mean and include what is ordinarily meant by those
words and also membership or membership interest of a member of a nonstock
corporation; and the words "depository receipt" mean a receipt or other
instrument issued by a depository representing an interest in one or more
shares, or fractions thereof, solely of stock of a corporation, which stock is
deposited with the depository.

      (b)  Appraisal  rights  shall be  available  for the shares of any class
           or series of stock of a  constituent  corporation  in a merger or
           consolidation  to be effected  pursuant to sec. 251 (other than a
           merger effected  pursuant to sec. 251(g) of this title),  sec. 252,
           sec. 254, sec. 257, sec. 258, sec. 263 or sec. 264 of this title:

           (1)  Provided, however, that no appraisal rights under this section
                shall be available for the shares of any class or series of
                stock, which stock, or depository receipts in respect thereof,
                at the record date fixed to determine the stockholders entitled
                to receive notice of and to vote at the meeting of stockholders
                to act upon the agreement of merger or consolidation, were
                either (i) listed on a national securities exchange or
                designated as a national market system security on an
                interdealer quotation system by the National Association of
                Securities Dealers, Inc. or (ii) held of record by more than
                2,000 holders; and further provided that no appraisal rights
                shall be available for any shares of stock of the constituent
                corporation surviving a merger if the merger did not require for
                its approval the vote of the stockholders of the surviving
                corporation as provided in subsection (f) of sec. 251 of this
                title.

           (2)  Notwithstanding paragraph (1) of this subsection, appraisal
                rights under this section shall be available for the shares of
                any class or series of stock of a constituent corporation if the
                holders thereof are required by the terms of an agreement of
                merger or consolidation if the holders thereof are required by
                the terms of an agreement of merger or consolidation pursuant to
                secs. 251, 252, 254, 257, 258, 263 and 264 of this title to
                accept for such stock anything except:

                a.   Shares of stock of the  corporation  surviving or resulting
                     from such merger or  consolidation,  or depository
                     receipts in
                     respect thereof;

                b.   Shares of stock of any other corporation, or depository
                     receipts in respect thereof, which shares of stock (or
                     depository receipts in respect thereof) or depository
                     receipts at the effective date of the merger or
                     consolidation will be either listed on a national
                     securities exchange or designated as a national market
                     system security on an interdealer quotation system by the
                     National Association of Securities Dealers, Inc. or held of
                     record by more than 2,000 holders;

                c.   Cash in lieu of fractional shares or fractional depository
                     receipts described in the foregoing subparagraphs a. and b.
                     of this paragraph; or

                d.   Any combination of the shares of stock, depository receipts
                     and cash in lieu of fractional shares or fractional
                     depository receipts described in the foregoing
                     subparagraphs a., b. and c. of this paragraph.

            (3) In the event all of the stock of a subsidiary Delaware
                corporation party to a merger effected under sec. 253 of this
                title is not owned by the parent corporation immediately prior
                to the merger, appraisal rights shall be available for the
                shares of the subsidiary Delaware corporation.

                                      D-1
<PAGE>

      (c)  Any corporation may provide in its certificate of incorporation that
           appraisal rights under this section shall be available for the shares
           of any class or series of its stock as a result of an amendment to
           its certificate of incorporation, any merger or consolidation in
           which the corporation is a constituent corporation or the sale of all
           or substantially all of the assets of the corporation. If the
           certificate of incorporation contains such a provision, the
           procedures of this section, including those set forth in subsections
           (d) and (e) of this section, shall apply as nearly as is practicable.

      (d) Appraisal rights shall be perfected as follows:

           (1)  If a proposed merger or consolidation for which appraisal rights
                are provided under this section is to be submitted for approval
                at a meeting of stockholders, the corporation, not less than 20
                days prior to the meeting, shall notify each of its stockholders
                who was such on the record date for such meeting with respect to
                shares for which appraisal rights are available pursuant to
                subsections (b) or (c) hereof that appraisal rights are
                available for any or all of the shares of the constituent
                corporations, and shall include in such notice a copy of this
                section. Each stockholder electing to demand the appraisal of
                (1)such stockholder's shares shall deliver to the corporation,
                before the taking of the vote on the merger or consolidation, a
                written demand for appraisal of (1)such stockholder's shares.
                Such demand will be sufficient if it reasonably informs the
                corporation of the identity of the stockholder and that the
                stockholder intends thereby to demand the appraisal of (1)such
                stockholder's shares. A proxy or vote against the merger or
                consolidation shall not constitute such a demand. A stockholder
                electing to take such action must do so by a separate written
                demand as herein provided. Within 10 days after the effective
                date of such merger or consolidation, the surviving or resulting
                corporation shall notify each stockholder of each constituent
                corporation who has complied with this subsection and has not
                voted in favor of or consented to the merger or consolidation of
                the date that the merger or consolidation has become effective;
                or

           (2)  If the merger or consolidation was approved pursuant to sec.228
                or sec.253 of this title, each constituent corporation, either
                before the effective date of the merger or consolidation or
                within ten days thereafter, shall notify each of the holders of
                any class or series of stock of such constituent corporation who
                are entitled to appraisal rights of the approval of the merger
                or consolidation and that appraisal rights are available for any
                or all shares of such class or series of stock of such
                constituent corporation, and shall include in such notice a copy
                of this section; provided that, if the notice is given on or
                after the effective date of the merger or consolidation, such
                notice shall be given by the surviving or resulting corporation
                to all such holders of any class or series of stock of a
                constituent corporation that are entitled to appraisal rights.
                Such notice may, and, if given on or after the effective date of
                the merger or consolidation, shall, also notify such
                stockholders of the effective date of the merger or
                consolidation. Any stockholder entitled to appraisal rights may,
                within 20 days after the date of mailing of such notice, demand
                in writing from the surviving or resulting corporation the
                appraisal of such holder's shares. Such demand will be
                sufficient if it reasonably informs the corporation of the
                identity of the stockholder and that the stockholder intends
                thereby to demand the appraisal of such holder's shares. If such
                notice did not notify stockholders of the effective date of the
                merger or consolidation, either (i) each such constituent
                corporation shall send a second notice before the effective date
                of the merger or consolidation notifying each of the holders of
                any class or series of stock of such constituent corporation
                that are entitled to appraisal rights of the effective date of
                the merger or consolidation or (ii) the surviving or resulting
                corporation shall send such a second notice to all such holders
                on or within 10 days after such effective date; provided,
                however, that if such second notice is sent more than 20 days
                following the sending of the first notice, such second notice
                need only be sent to each stockholder who is entitled to
                appraisal rights and who has demanded appraisal of such holder's
                shares in accordance with this subsection. An affidavit of the
                secretary or assistant secretary or of the transfer agent of the
                corporation that is required to give either notice that such
                notice has been given shall, in the absence of fraud, be prima
                facie evidence of the facts stated therein. For purposes of
                determining the stockholders entitled to receive either notice,
                each constituent corporation may fix, in advance, a record date
                that shall be not more than 10 days prior to the date the notice
                is given, provided, that if the notice is given on or after the
                effective date of the merger or consolidation, the record date
                shall be such effective date. If no record date is fixed and the
                notice is given prior to the effective date, the record date
                shall be the close of business on the day next preceding the day
                on which the notice is given.

                                      D-2
<PAGE>

      (e)   Within 120 days after the effective date of the merger or
            consolidation, the surviving or resulting corporation or any
            stockholder who has complied with subsections (a) and (d) hereof and
            who is otherwise entitled to appraisal rights, may file a petition
            in the Court of Chancery demanding a determination of the value of
            the stock of all such stockholders. Notwithstanding the foregoing,
            at any time within 60 days after the effective date of the merger or
            consolidation, any stockholder shall have the right to withdraw
            (1)such stockholder's demand for appraisal and to accept the terms
            offered upon the merger or consolidation. Within 120 days after the
            effective date of the merger or consolidation, any stockholder who
            has complied with the requirements of subsections (a) and (d)
            hereof, upon written request, shall be entitled to receive from the
            corporation surviving the merger or resulting from the consolidation
            a statement setting forth the aggregate number of shares not voted
            in favor of the merger or consolidation and with respect to which
            demands for appraisal have been received and the aggregate number of
            holders of such shares. Such written statement shall be mailed to
            the stockholder within 10 days after(1) such stockholder's written
            request for such a statement is received by the surviving or
            resulting corporation or within 10 days after expiration of the
            period for delivery of demands for appraisal under subsection (d)
            hereof, whichever is later.

      (f)   Upon the filing of any such petition by a stockholder, service of a
            copy thereof shall be made upon the surviving or resulting
            corporation, which shall within 20 days after such service file in
            the office of the Register in Chancery in which the petition was
            filed a duly verified list containing the names and addresses of all
            stockholders who have demanded payment for their shares and with
            whom agreements as to the value of their shares have not been
            reached by the surviving or resulting corporation. If the petition
            shall be filed by the surviving or resulting corporation, the
            petition shall be accompanied by such a duly verified list. The
            Register in Chancery, if so ordered by the Court, shall give notice
            of the time and place fixed for the hearing of such petition by
            registered or certified mail to the surviving or resulting
            corporation and to the stockholders shown on the list at the
            addresses therein stated. Such notice shall also be given by 1 or
            more publications at least 1 week before the day of the hearing, in
            a newspaper of general circulation published in the City of
            Wilmington, Delaware or such publication as the Court deems
            advisable. The forms of the notices by mail and by publication shall
            be approved by the Court, and the costs thereof shall be borne by
            the surviving or resulting corporation.

      (g)  At the hearing on such petition, the Court shall determine the
           stockholders who have complied with this section and who have become
           entitled to appraisal rights. The Court may require the stockholders
           who have demanded an appraisal for their shares and who hold stock
           represented by certificates to submit their certificates of stock to
           the Register in Chancery for notation thereon of the pendency of the
           appraisal proceedings; and if any stockholder fails to comply with
           such direction, the Court may dismiss the proceedings as to such
           stockholder.

      (h)   After determining the stockholders entitled to an appraisal, the
            Court shall appraise the shares, determining their fair value
            exclusive of any element of value arising from the accomplishment or
            expectation of the merger or consolidation, together with a fair
            rate of interest, if any, to be paid upon the amount determined to
            be the fair value. In determining such fair value, the Court shall
            take into account all relevant factors. In determinating the fair
            rate of interest, the Court may consider all relevant factors,
            including the rate of interest which the surviving or resulting
            corporation would have had to pay to borrow money during the
            pendency of the proceeding. Upon application by the surviving or
            resulting corporation or by any stockholder entitled to participate
            in the appraisal proceeding, the Court may, in its discretion,
            permit discovery or other pretrial proceedings and may proceed to
            trial upon the appraisal prior to the final determination of the
            stockholder entitled to an appraisal. Any stockholder whose name
            appears on the list filed by the surviving or resulting corporation
            pursuant to subsection (f) of this section and who has submitted
            such stockholder's certificates of stock to the Register in
            Chancery, if such is required, may participate fully in all
            proceedings until it is finally determined that (1)such stockholder
            is not entitled to appraisal rights under this section.

      (i)   The Court shall direct the payment of the fair value of the shares,
            together with interest, if any, by the surviving or resulting
            corporation to the stockholders entitled thereto. Interest may be
            simple or compound, as the Court may direct. Payment shall be so
            made to each such stockholder, in the case of holders of
            uncertificated stock forthwith, and the case of holders of shares
            represented by certificates upon the surrender to the corporation of
            the certificates representing such stock. The Court's decree may be
            enforced as other decrees in the Court of Chancery may be enforced,
            whether such surviving or resulting corporation be a corporation of
            this State or of any state.

                                      D-3
<PAGE>

      (j)   The costs of the proceeding may be determined by the Court and taxed
            upon the parties as the Court deems equitable in the circumstances.
            Upon application of a stockholder, the Court may order all or a
            portion of the expenses incurred by any stockholder in connection
            with the appraisal proceeding, including, without limitation,
            reasonable attorney's fees and the fees and expenses of experts, to
            be charged pro rata against the value of all the shares entitled to
            an appraisal.

      (k)   From and after the effective date of the merger or consolidation, no
            stockholder who has demanded appraisal rights as provided in
            subsection (d) of this section shall be entitled to vote such stock
            for any purpose or to receive payment of dividends or other
            distributions on the stock (except dividends or other distributions
            payable to stockholders of record at a date which is prior to the
            effective date of the merger or consolidation); provided, however,
            that if no petition for an appraisal shall be filed within the time
            provided in subsection (e) of this section, or if such stockholder
            shall deliver to the surviving or resulting corporation a written
            withdrawal of such stockholder's demand for an appraisal and an
            acceptance of the merger or consolidation, either within 60 days
            after the effective date of the merger or consolidation as provided
            in subsection (e) of this section or thereafter with the written
            approval of the corporation, then the right of such stockholder to
            an appraisal shall cease. Notwithstanding the foregoing, no
            appraisal proceeding in the Court of Chancery shall be dismissed as
            to any stockholder without the approval of the Court, and such
            approval may be conditioned upon such terms as the Court deems just.

      (l)   The shares of the surviving or resulting corporation to which the
            shares of such objecting stockholders would have been converted had
            they assented to the merger or consolidation shall have the status
            of authorized and unissued shares of the surviving or resulting
            corporation.

                                      D-4
<PAGE>


                                     PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 20.    INDEMNIFICATION OF DIRECTORS AND OFFICERS

      With respect to the indemnification of directors and officers, Section 5
of Article IX of the By-Laws of Summit Bancorp. provides:

      Section 5. INDEMNIFICATION AND INSURANCE (a) Each person who was or is
made a party or is threatened to be made a party to or is involved in any
proceeding, by reason of the fact that he or she is or was a corporate agent of
the Corporation, whether the basis of such proceeding is alleged action in an
official capacity as a corporate agent or in any other capacity while serving as
a corporate agent, shall be indemnified and held harmless by the Corporation to
the fullest extent authorized by the laws of the State of New Jersey as the same
exists or may hereafter be amended (but, in the case of any such amendment, only
to the extent that such amendment permits the Corporation to provide broader
indemnification rights than said law permitted the Corporation to provide prior
to such amendment), against all expenses and liabilities in connection
therewith, and such indemnification shall continue as to a person who has ceased
to be a corporate agent and shall inure to the benefit of such corporate agent's
heirs, executors, administrators and other legal representatives; PROVIDED,
HOWEVER, that except as provided in Section 5(c) of this By-Law, the Corporation
shall indemnify any such person seeking indemnification in connection with a
proceeding (or part thereof) initiated by such person only if such proceeding
(or part thereof) was authorized by the Board of Directors. The right to
indemnification conferred in this By-Law shall be a contract right and shall
include the right to be paid by the Corporation the expenses incurred in
defending any such proceeding in advance of its final disposition, such advances
to be paid by the Corporation within 20 days after the receipt by the
Corporation of a statement or statements from the claimant requesting such
advance or advances from time to time; PROVIDED, HOWEVER, that the advancement
of counsel fees to a claimant other than a claimant who is or was a director or
Executive Vice President or higher ranking officer of the Corporation shall be
made only when the Board of Directors or the General Counsel of the Corporation
determines that arrangements for counsel are satisfactory to the Corporation;
and PROVIDED, FURTHER, that if the laws of the State of New Jersey so require,
the payment of such expenses incurred by a corporate agent in such corporate
agent's capacity as a corporate agent (and not in any other capacity in which
service was or is rendered by such person while a corporate agent, including,
without limitation, service to an employee benefit plan) in advance of the final
disposition of a proceeding shall be made only upon delivery to the Corporation
of an undertaking by or on behalf of such corporate agent to repay all amounts
so advanced if it shall ultimately be determined that such corporate agent is
not entitled to be indemnified under this By-Law or otherwise.

      (b) To obtain indemnification under this By-Law, a claimant shall submit
to the Corporation a written request, including therein or therewith such
documentation and information as is reasonably available to the claimant and is
reasonably necessary to determine whether and to what extent the claimant is
entitled to indemnification. Upon written request by a claimant for
indemnification pursuant to the first sentence of this Section 5(b), a
determination, if required by applicable law, with respect to the claimant's
entitlement thereto shall be made as follows: (1) if requested by a claimant who
is or was a director or Executive Vice President or higher ranking officer of
this Corporation, by independent counsel (as hereinafter defined) in a written
opinion to the Board of Directors, a copy of which shall be delivered to the
claimant; or (2) if the claimant is not a person described in Section 5(b)(1),
or is such a person and if no request is made by such a claimant for a
determination by independent counsel, (A) by the Board of Directors by a
majority vote of a quorum consisting of disinterested directors (as hereinafter
defined), or (B) if a quorum of the Board of Directors consisting of
disinterested directors is not obtainable or, even if obtainable, such quorum of
disinterested directors so directs, by independent counsel in a written opinion
to the Board of Directors, a copy of which shall be delivered to the claimant.
In the event the determination of entitlement to indemnification is to be made
by independent counsel at the request of the claimant, the independent counsel
shall be selected by the Board of Directors and paid by the Corporation. If it
is so determined that the claimant is entitled to indemnification, payment to
the claimant shall be made within 20 days after such determination.

      (c) If a claim under Section 5(a) of this By-Law is not paid in full by
the Corporation within thirty days after a written claim pursuant to Section
5(b) of this By-Law has been received by the Corporation, the claimant may at
any time thereafter bring suit against the Corporation to recover the unpaid
amount of the claim and, if successful in whole

                                      II-1
<PAGE>

or in part, the claimant shall be entitled to be paid also the expense of
prosecuting such claim, including attorney's fees. It shall be a defense to any
such action (other than an action brought to enforce a claim for expenses
incurred in defending any proceeding in advance of its final disposition where
the required undertaking, if any is required, has been tendered to the
Corporation) that the claimant has not met the standard of conduct which makes
it permissible under the laws of the State of New Jersey for the Corporation to
indemnify the claimant for the amount claimed, but the burden of proving such
defense shall be on the Corporation. Neither the failure of the Corporation
(including its Board of Directors or independent counsel) to have made a
determination prior to the commencement of such action that indemnification of
the claimant is proper in the circumstances because the claimant has met the
applicable standard of conduct set forth in the laws of the State of New Jersey,
nor an actual determination by the Corporation (including its Board of Directors
or independent counsel) that the claimant has not met such applicable standard
of conduct, shall be a defense to the action or create a presumption that the
claimant has not met the applicable standard of conduct.

      (d) If a determination shall have been made pursuant to Section 5(b) of
this By-Law that the claimant is entitled to indemnification, the Corporation
shall be bound by such determination in any judicial proceeding commenced
pursuant to Section 5(c) of this By-Law.

      (e) The right to indemnification and the payment of expenses incurred in
defending a proceeding in advance of its final disposition conferred in this
By-Law shall not be exclusive of any other rights which any person may have or
hereafter acquire under any statute, provision of the Certificate of
Incorporation, By-Laws, agreement, vote of shareholders or disinterested
directors or otherwise. No repeal or modification of this By-Law shall in any
way diminish or adversely affect the rights of any corporate agent of the
Corporation hereunder in respect of any occurrence or matter arising prior to
any such repeal or modification.

      (f) The Corporation may maintain insurance, at its expense, to protect
itself and any corporate agent of the Corporation or other enterprise against
any expense or liability, whether or not the Corporation would have the power to
indemnify such person against such expense or liability under the laws of the
State of New Jersey.

      (g) If any provision or provisions of this By-Law shall be held to be
invalid, illegal or unenforceable for any reason whatsoever: (1) the validity,
legality and enforceability of the remaining provisions of this By-Law
(including, without limitation, each portion of any section of this By-Law
containing any such provision held to be invalid, illegal or unenforceable)
shall not in any way be affected or impaired thereby; and (2) to the fullest
extent possible, the provisions of this By-Law (including, without limitation,
each such portion of any section of this By-Law containing any such provision
held to be invalid, illegal or unenforceable) shall be construed so as to give
effect to the intent manifested by the provision held invalid, illegal or
unenforceable.

      (h) For purposes of this By-Law:

            (1) "disinterested director" means a director of the Corporation who
      is not and was not a party to or otherwise involved in the matter in
      respect of which indemnification is sought by the claimant.

            (2) "independent counsel" means a law firm, a member of a law firm,
      or an independent practitioner that is experienced in matters of
      corporation law and shall include any person who, under the applicable
      standards of professional conduct then prevailing, would not have a
      conflict of interest in representing either the Corporation or the
      claimant in an action to determine the claimant's rights under this
      By-Law.

            (3) "corporate agent" means any person who is or was a director,
      officer, employee or agent of the Corporation or of any constituent
      corporation absorbed by the Corporation in an consolidation or merger and
      any person who is or was a director, officer, trustee, employee or agent
      of any subsidiary of the Corporation or of any other enterprise, serving
      as such at the request of this Corporation, or of any such constituent
      corporation, or the legal representative of any such director, officer,
      trustee, employee or agent;

            (4) "other enterprise" means any domestic or foreign corporation,
      other than the Corporation, and any partnership, joint venture, sole
      proprietorship, trust or other enterprise, whether or not for profit,
      served by a corporate agent;

            (5) "expenses" means reasonable costs, disbursements and counsel
fees;

            (6) "liabilities" means amounts paid or incurred in satisfaction of
settlements, judgments, fines and penalties;

                                      II-2
<PAGE>

            (7) "proceeding" means any pending, threatened or completed civil,
      criminal, administrative, legislative, investigative or arbitrative
      action, suit or proceeding, and any appeal therein and any inquiry or
      investigation which could lead to such action, suit or proceeding; and

            (8) References to "other enterprises" include employee benefit
      plans; references to "fines" include any excise taxes assessed on a person
      with respect to an employee benefit plan; and references to "serving at
      the request of the indemnifying corporation" include any service as a
      corporate agent which imposes duties on, or involves services by, the
      corporate agent with respect to an employee benefit plan, its
      participants, or beneficiaries; and a person who acted in good faith and
      in a manner the person reasonably believed to be in the interest of the
      participants and beneficiaries of an employee benefit plan shall be deemed
      to have acted in a manner "not opposed to the best interests of the
      corporation."

      (i) Any notice, request or other communication required or permitted to be
given to the Corporation under this By-Law shall be in writing and either
delivered in person or sent by facsimile, telex, telegram, overnight mail or
courier service, or certified or registered mail, postage prepaid, return
receipt requested, to the Secretary of the Corporation and shall be effective
only upon receipt by the Secretary.

      (j) This By-Law shall be implemented and construed to provide any
corporate agent described above who is found to have acted in good faith and in
a manner such person reasonably believed to be in or not opposed to the best
interests of the Corporation the maximum indemnification, advancement of
expenses, and reimbursement for liabilities and expenses allowed by law.

      Such provision is consistent with Section 14A:3-5 of the Business
Corporation Act of the State of New Jersey, the state of Summit's incorporation,
which permits the indemnification of officers and directors, under certain
circumstances and subject to specified limitations, against liability which any
officer or director may incur in such capacity.

      Article 7 of Summit's Restated Certificate of Incorporation provides that:

      Except to the extent prohibited by law, no Director or officer of the
Corporation shall be personally liable to the Corporation or its shareholders
for damages for breach of any duty owned to the Corporation or its shareholders
provided that a Director or officer shall not be relieved from liability for any
breach of duty based upon an act or omission (a) in breach of such persons duty
of loyalty to the Corporation or its shareholders, (b) not in good faith or
involving a knowing violation of law or (c) resulting in receipt of an improper
personal benefit. Neither the amendment or repeal of this Article 7, nor the
adoption of any provision of this Restated Certificate of Incorporation
inconsistent with this Article 7, nor the adoption of any provision of this
Restated Certificate of Incorporation inconsistent with this Article 7, shall
eliminate or reduce the effect of this Article 7 in respect of any matter which
occurred, or any cause of action, suit or claim which but for this Article 7
would have accrued or arisen, prior to such amendment, repeal or adoption.

      Summit carries officers' and directors' liability insurance policies which
provide coverage against judgments, settlements and legal costs incurred because
of actual or asserted acts or omissions of such officers and directors of Summit
arising out of their duties as such, subject to certain exceptions, including,
but not limited to, damages based upon illegal personal profits or adjudicated
dishonesty of the person seeking indemnification. The policies provide coverage
of $50,000,000 in the aggregate.

                                      II-3
<PAGE>



      ITEM 21.       EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.

      (A) EXHIBITS

      This Registration Statement includes the following exhibits:

EXHIBIT NO.                        DESCRIPTION
- ----------                         -----------

2         Agreement and Plan of Merger dated October 3, 1999 between NMBT Corp
          and Summit. (Included without exhibits as Appendix A to the Proxy
          Statement-Prospectus included in this Registration Statement; with
          Exhibit B thereto included as Appendix C to the Proxy
          Statement-Prospectus included in this Registration Statement and
          Exhibits C-E thereto incorporated by reference to Exhibit 10(a) to the
          Schedule 13D filed by Summit with respect to NMBT Corp Common Stock
          (File No. 0-23419) dated October 4, 1999).

3(a)      Restated Certificate of Incorporation of Summit, as restated August
          16, 1999 (incorporated by reference to Exhibit (3)A on Form 10-Q for
          the quarter ended June 30, 1999).

(b)       By-Laws of Summit as amended through October 18, 1995 (incorporated by
          reference to Exhibit (2)B on Form 10-K for the year ending December
          31, 1995).

4         Rights Agreement, dated as of June 16, 1999, by and between Summit
          Bancorp. and First Chicago Trust Company of New York, as Rights Agent
          (incorporated by reference to Exhibit 4.1 to the Summit Bancorp. Form
          8-K, dated June 16, 1999).

*5        Opinion of Richard F. Ober, Jr., Esq. regarding legality of securities
          being issued.

*8        Opinion of Thompson Coburn, regarding tax matters.

23(a)     Consent of KPMG LLP.

(b)       Consent of Deloitte & Touche LLP.

*(c)      Consent of Richard F. Ober, Jr., Esq. - to be included in his opinion
          filed as Exhibit 5 to this Registration Statement.

*(d)      Consent of Thompson Coburn - to be included in its opinion filed as
          Exhibit 8 to this Registration Statement.

24        Power of Attorney-- included on the signature page of this filing.

99(a)     Form of NMBT proxy.

(b)       Opinion of Advest, Inc.-- Included as Appendix B to the Proxy
          Statement-Prospectus included in this Registration Statement.

*(c)      Consent of Advest, Inc.


* To be filed by amendment.


      (B) FINANCIAL STATEMENT SCHEDULES.

      All financial statement schedules either are not required or are included
in the notes to the financial statements incorporated by reference herein.

ITEM 22.    UNDERTAKINGS.

      (a) The undersigned registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of the
registrant's annual report pursuant to Section 13(a) or Section 15(d) of the
Securities Exchange Act of 1934 (and, where applicable, each filing of an
employee benefit plan's annual report pursuant to Section 15(d) of the
Securities Exchange Act of 1934) that is incorporated by reference in the
registration statement 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>



      (b) 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;

                     PROVIDED,  HOWEVER, that paragraphs (a)(1)(i) and
                    (a)(1)(ii) of this section do not apply if the registration
                    statement is on Form S-3, Form S-8 or Form F-3, and the
                    information required to be included in a post-effective
                    amendment by those paragraphs is contained in periodic
                    reports filed with or furnished to the Commission by the
                    registrant pursuant to section 13 or section 15(d) of the
                    Securities Exchange Act of 1934 that are incorporated by
                    reference 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.

      (c) 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 provisions set forth in response to
Item 20 hereof, 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 or paid 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 of 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.

      (d) 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.

      (e) 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.

                                      II-5
<PAGE>



      SIGNATURES

      Pursuant to the requirements of the Securities Act of 1933, the registrant
has duly caused this Registration Statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the Township of West Windsor and the
State of New Jersey on this 22nd day of December, 1999.

                                             SUMMIT BANCORP.

                                             By: /s/ T. Joseph Semrod

                                       -----------------------------
                                             T. Joseph Semrod
                                             Chairman of the Board of Directors
                                             and Chief Executive Officer

                                POWER OF ATTORNEY

      KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears
below constitutes and appoints T. Joseph Semrod, William J. Healy and Richard F.
Ober, Jr., and each of them, the undersigned's true and lawful attorney-in-fact
and agents, with full power of substitution and resubstitution, for the
undersigned and in the undersigned's name, place and stead, in any and all
capacities, to sign any or all amendments (including post-effective amendments)
to this Registration Statement, and to file the same with all exhibits thereto
and other documents in connection therewith, with the Commission, granting unto
said attorneys-in-fact and agents, and each of them, full power and authority to
do and perform each and every act and thing requisite and necessary to be done
in ratifying and confirming all that said attorneys-in-fact and agents, or any
of them, or their substitute or substitutes, may lawfully do or cause to be done
by virtue hereof.

      Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed below on the 22nd day of December, 1999
by the following persons in the capacities indicated.

SIGNATURES                           TITLES
- ---------                            ------

/s/ T. Joseph Semrod
- -----------------------              Chairman of the Board
     T. Joseph Semrod                of Directors (Chief Executive Officer)

/s/ Robert G. Cox
- -----------------------              President and Director
     Robert G. Cox

/s/ William J. Healy
- -----------------------              Executive Vice President - Finance
     William J. Healy                (Principal Financial Officer)

/s/ Paul V. Stahlin
- -----------------------              Senior Vice President and Comptroller
     Paul V. Stahlin                 (Principal Accounting Officer)

/s/ Robert L. Boyle
- -----------------------              Director
     Robert L. Boyle

/s/ James C. Brady
- -----------------------              Director
     James C. Brady

/s/ John G. Collins
- -----------------------              Director
     John G. Collins

/s/ T. J. Dermot Dunphy
- -----------------------              Director
     T.J. Dermot Dunphy

                                      II-6
<PAGE>


SIGNATURES                           TITLES

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

/s/ Anne Evans Estabrook
- --------------------------           Director
     Anne Evans Estabrook

/s/ Elinor J. Ferdon

- -------------------------            Director
     Elinor J. Ferdon

/s/ William M. Freeman

- -------------------------            Director
     William M. Freeman

/s/ Thomas H. Hamilton

- -------------------------            Director
     Thomas H. Hamilton

/s/ Fred G. Harvey

- -------------------------             Director
     Fred G. Harvey

/s/ Arthur J. Kania

- -------------------------            Director
     Arthur J. Kania

/s/ Francis J. Mertz

- --------------------------           Director
     Francis J. Mertz

/s/ George L. Miles, Jr.

- --------------------------           Director
     George L. Miles, Jr.

/s/ William R. Miller

- --------------------------           Director
     William R. Miller

/s/ Raymond Silverstein

- --------------------------           Director
     Raymond Silverstein

/s/ Orin R. Smith

- --------------------------           Director
     Orin R. Smith

/s/ Joseph M. Tabak

- -------------------------            Director
     Joseph M. Tabak

/s/ Douglas G. Watson

- -------------------------            Director
     Douglas G. Watson

                                      II-7

                         INDEPENDENT AUDITORS' CONSENT

The Board of Directors
Summit Bancorp:

We consent to the use of our report dated January 19, 1999 relating to the
consolidated balance sheets of Summit Bancorp 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 years in the three-year
period ended December 31, 1998, which report appears in the December 31, 1998
Annual Report on Form 10-K of Summit Bancorp, incorporated by reference in the
Registration Statement on form S-4 of Summit Bancorp. We also consent to the
reference to our Firm under the caption "Experts"



/s/ KPMG LLP
Short Hills, New Jersey
December 20, 1999


                         INDEPENDENT AUDITORS' CONSENT

We consent to the incorporation by reference in this Registration Statement
of Summit Bancorp. on Form S-4 of our report dated January 21, 1999, appearing
in and incorporated by reference in the Annual Report on Form 10-K of NMBT
CORP for the year ended December 31, 1998 and to the reference to us under the
heading "Experts" in this Proxy Statement-Prospectus, which is part of this
Registration Statement.


/s/Deloitte & Touche, LLP
Stamford, Connecticut
December 21, 1999



                                   NMBT CORP

                                 55 Main Street

                      New Milford, Connecticut, 06776-2400

         THIS PROXY IS SOLICITATED ON BEHALF OF THE BOARD OF DIRECTORS

     The undersigned hereby appoints JAY C. LENT, and DEBORAH L. FISH, or either
of them,  the true and  lawful  attorneys  for the  undersigned,  with  power of
substitution  to  each,  to vote all the  shares  of  stock  of NMBT  CORP  (the
"Company")  standing in the name of the  undersigned on the books of the Company
as of  the  Record  Date,  _________,  2000,  at  the  Special  Meeting  of  the
Stockholders  to be held at the Park Lane  Office,  100 Park Lane,  New Milford,
Connecticut, on ________,  ________, 2000 at 7:00 p.m., or at any adjournment or
adjournments  thereof,  with all the  power the  undersigned  would  possess  if
personally  present, in respect to the following matters as more fully described
in the accompanying Proxy Statement to Stockholders.

     This proxy will be voted as directed by the stockholder on the reverse side
of this proxy card.

     UNLESS  CONTRARY  DIRECTION  IS  GIVEN,  THIS  PROXY  WILL BE  VOTED  "FOR"
PROPOSALS 1 AND 2 AND IN ACCORDANCE WITH THE  DETERMINATION OF A MAJORITY OF THE
BOARD OF  DIRECTORS  AS TO OTHER  MATTERS  PROPERLY  BROUGHT  BEFORE THE SPECIAL
MEETING OR ANY ADJOURNMENT  THEREOF.  THE PROXY MAY BE REVOKED AT ANY TIME PRIOR
TO THE MEETING BY WRITTEN NOTICE TO THE COMPANY, OR MAY BE WITHDRAWN AND YOU MAY
VOTE IN PERSON SHOULD YOU ATTEND THE ANNUAL MEETING.

                                                                See Reverse Side


<PAGE>
/ /  PLEASE MARK YOUR
     VOTES AS IN THIS
     EXAMPLE.

                                                                            XXXX


- --------------------------------------------------------------------------------
      THE BOARD OF DIRECTORS RECOMMENDS THAT YOU VOTE "FOR" ITEMS 1 AND 2.
- --------------------------------------------------------------------------------

                                               FOR     AGAINST   ABSTAIN

1.  To approve and adopt the Agreement         / /       / /       / /
    and Plan of Merger, dated October 3,
    1999, between Summit Bancorp. and
    NMBT Corp. and the transactions
    contemplated thereby, including the
    merger of NMBT Corp. with and into
    Summit Bancorp.

2.  To approve an adjournment of the          / /       / /       / /
    Special Meeting in advance of voting
    on the Merger Agreement in the event
    there are not sufficient votes to
    constitute a quorum or to approve
    the Merger Agreement at the
    scheduled time, in order to permit
    further solicitation of proxies.

3.  To transact such other business as
    may properly be brought before the
    Special Meeting or any adjournments
    thereof.



Please check here if you plan on              / /
attending the special meeting.

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

Please sign exactly as name appears hereon. When signing as attorney, executor,
administrator, trustee, or guardian, please give full title as such. If more
than one name is shown, including the case of joint tenants, each party should
sign. Proxies executed by a corporation or partnership should be signed in the
corporate or partnership name by a duly authorized officer or partner.

Please mark, sign, date and return the proxy card promptly using the enclosed
envelope.





                                                                            2000
- --------------------------------------------------------------------------------
(Signature)                                           (title)               Date


- --------------------------------------------------------------------------------
(Signature if held jointly)





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