FIRSTBANK CORP
10-K, 2000-03-30
STATE COMMERCIAL BANKS
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                     U.S. SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    Form 10-K

[X]     Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange
        Act of 1934 For the fiscal year ended December 31, 1999

[ ]     Transition Report Pursuant to Section 13 or 15(d) of the Securities
        Exchange Act of 1934 [No Fee Required]
        For the transition period from_______________ to ______________

                         Commission File Number: 0-14209

                              FIRSTBANK CORPORATION
             (Exact name of registrant as specified in its charter)

          Michigan                                       38-2633910
   (State of Incorporation)                 (I.R.S. Employer Identification No.)

                              311 Woodworth Avenue
                              Alma, Michigan 48801
               (Address of principal executive offices) (Zip Code)

       Registrant's telephone number, including area code: (517) 463-3131

      Securities registered pursuant to Section 12(g) of the Exchange Act:

                                  Common Stock
                                (Title of Class)

Indicate by check mark whether the registrant (1) has filed all reports required
to be  filed by  Section  13 or 15(d) of the  Exchange  Act of 1934  during  the
preceding 12 months (or for such shorter period that the registrant was required
to file such reports),  and (2) has been subject to such filing requirements for
the past 90 days.
                              Yes __X__   No ______

Indicate by check mark if disclosure of delinquent  filers  pursuant to Item 405
of Regulation  S-K is not contained  herein,  and will not be contained,  to the
best of registrant's  knowledge,  in definitive proxy or information  statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K. [X]

State the aggregate  market value of the voting stock held by  nonaffiliates  of
the registrant. The aggregate market value shall be computed by reference to the
price at which the stock was sold,  or the average bid and asked  prices of such
stock, as of a specified date within 60 days prior to the date of filing.

             Aggregate Market Value as of March 6, 2000: $94,717,613

Indicate the number of shares outstanding of each of the registrant's classes of
common stock, as of the latest practicable date.

           Common stock outstanding at March 6, 2000: 4,677,413 shares

                       DOCUMENTS INCORPORATED BY REFERENCE

Portions of the  registrant's  annual report to shareholders  for the year ended
December 31, 1999, are incorporated by reference in Part II.

Portions  of  the  definitive  proxy  statement  for  the  registrant's   annual
shareholders'  meeting to be held April 24, 2000, are  incorporated by reference
in Part III.

- --------------------------------------------------------------------------------
<PAGE>
FORWARD LOOKING STATEMENTS

     This annual report on Form 10-K including, without limitation, management's
discussion  and analysis of financial  conditions  and results of operations and
other  sections of the  Corporation's  Annual Report to  Shareholders  which are
incorporated by reference in this report contain forward looking statements that
are based on management's beliefs, assumptions, current expectations,  estimates
and projections about the financial  services industry,  the economy,  and about
the Corporation  itself.  Words such as "anticipate,  " "believe,"  "determine,"
"estimate,"  "expect,"  "forecast,"  "intend," "is likely,"  "plan,"  "project,"
"opinion,"  variations of such terms,  and similar  expressions  are intended to
identify such forward looking  statements.  The Year 2000 Readiness  Disclosure,
the  presentations  and  discussions  of the  provision  and  allowance for loan
losses,  and  determinations  as to the need for other  allowances  presented or
incorporated  by  reference  in  this  report  are  inherently  forward  looking
statements  in that they involve  judgments  and  statements of belief as to the
outcome  of  future  events.  These  statements  are not  guarantees  of  future
performance and involve certain risks,  uncertainties,  and assumptions that are
difficult to predict with regard to timing,  extent,  likelihood,  and degree of
occurrence.  Therefore,  actual results and outcomes may materially  differ from
what may be expressed or forecasted in such forward looking statements. Internal
and  external  factors  that may cause  such a  difference  include  changes  in
interest  rates  and  interest  rate  relationships;  demand  for  products  and
services;   the  degree  of  competition  by  traditional  and   non-traditional
competitors;  changes in banking  regulations;  changes in tax laws;  changes in
prices,  levies,  and  assessments;   the  impact  of  technological   advances;
governmental and regulatory  policy changes;  the outcomes of pending and future
litigation and  contingencies;  trends in customer behavior and customer ability
to repay loans;  software  failure;  errors or  miscalculations;  the ability of
other companies on which the Corporation  relies to be Year 2000 compliant;  the
ability of the  Corporation  to locate and correct all date  sensitive  computer
codes; and the vicissitudes of the national economy. The Corporation  undertakes
no obligation to update, amend or clarify forward looking statements, whether as
a result of new information, future events, or otherwise.

                                     PART I

ITEM 1.   Business.

     Firstbank  Corporation (the  "Corporation") is a bank holding company.  The
Corporation owns all of the outstanding stock of Bank of Alma,  Firstbank (Mount
Pleasant),  1st Bank (West Branch),  and Bank of Lakeview.  The  Corporation has
applied to form a new  community  bank in St.  Johns,  Michigan,  to be known as
"Firstbank  - St.  Johns." The opening of the bank is subject to approval by the
FDIC and the Michigan Financial  Institutions  Bureau.  Assuming receipt of such
approvals, it is expected that the bank will open in June or July of 2000.

     The Corporation's  business is concentrated in a single industry segment --
commercial  banking.  Each subsidiary bank of the Corporation is a full-service,
community  bank.  The  subsidiary  banks offer all customary  banking  services,
including the acceptance of checking, savings, and time deposits, and the making
of  commercial,   mortgage   (principally  single  family),   home  improvement,
automobile, and other consumer loans. Bank of Alma also offers trust services.

     1st Bank owns 1st Armored,  Incorporated,  an armored car service  provider
and 1st Collections,  Incorporated, a collection service. Each of the subsidiary
banks also offers  securities  brokerage  services at their main offices through
arrangements with third party brokerage firms.

     The principal  sources of revenues for the Corporation and its subsidiaries
are interest and fees on loans.  On a consolidated  basis,  interest and fees on
loans  accounted  for  approximately  78 percent of total  revenues in 1999,  76
percent of total revenues in 1998, and 80 percent in 1997. In addition, interest
income from  investment  securities  accounted for  approximately  10 percent of
total revenues on a consolidated  basis in 1999, 12 percent of total revenues on
a consolidated basis in 1998, and 11 percent of total revenues on a consolidated
basis in 1997.  No other single  source of revenue  accounted  for 15 percent or
more of the  Corporation's  total  revenues in any of the last three years.  The
Corporation  has no  foreign  assets and no income  from  foreign  sources.  The
business  of the  subsidiary  banks of the  Corporation  is not  seasonal to any
material extent.

     Bank of Alma is a Michigan state  chartered  bank. It and its  predecessors
have operated  continuously in Alma,  Michigan,  since 1880. Its main office and
one branch are located in Alma.  Bank of Alma also has one full  service  branch
located in each of the following communities near Alma: Ashley,  Auburn, Ithaca,
Merrill, Pine River Township, Riverdale, St. Charles, St. Louis, and Vestaburg.

                                       -1-
<PAGE>
     Firstbank is a Michigan  state  chartered  bank which was  incorporated  in
1894.  Its main office and one branch are located in Mount  Pleasant,  Michigan.
Firstbank  also has two full  service  offices  in Union  Township  and one full
service branch located in each of the following communities near Mount Pleasant:
Clare, Shepherd and Winn.

     1st Bank is a Michigan state chartered bank which was incorporated in 1980.
Its main office and one branch are located in West  Branch,  Michigan.  1st Bank
also has one full service  branch  located in each of the following  communities
near West Branch:  Fairview,  Hale, Higgins Lake, Rose City, St. Helen, and West
Branch Township.  1st Bank also operates a loan production  office in Roscommon,
Michigan.

     Bank of Lakeview is a Michigan state  chartered bank which was  established
in 1904.  Its main  office and one branch are  located in  Lakeview,  and it has
branches in Howard City, Morley, Remus, and Canadian Lakes (Morton Township).

     The  following   table  shows   comparative   information   concerning  the
Corporation's subsidiary banks at December 31, 1999:
<TABLE>
                                      Bank of Alma      Firstbank        1st Bank     Bank of Lakeview
                                                        (In thousands of Dollars)
              <S>                       <C>             <C>              <C>              <C>
              Assets                    $218,089        $132,687         $177,970         $114,508
              Deposits                   168,758         103,294          143,309           77,067
              Loans                      152,317         117,942          143,960           94,019
</TABLE>

     As of December 31, 1999, the Corporation and its subsidiaries  employed 300
persons on a full time equivalent basis.

     Banking in the  Corporation's  market areas and in the State of Michigan is
highly  competitive.  In addition to competition  from other  commercial  banks,
banks face significant competition from nonbank financial institutions.  Savings
and loan associations are able to compete aggressively with commercial banks for
deposits and loans.  Credit unions and finance  companies  are also  significant
factors in the consumer loan market. Insurance companies,  investment firms, and
retailers are significant competitors for investment products. Banks compete for
deposits  with a broad  spectrum  of other types of  investments  such as mutual
funds,  debt  securities  of  corporations,  and debt  securities of the federal
government,  state  governments,  and their respective  agencies.  The principal
methods of competition for financial  services are price (interest rates paid on
deposits,  interest  rates charged on loans,  and fees charged for services) and
service (the convenience and quality of services rendered to customers).

     The  Corporation's  subsidiary  banks  compete  directly  with other banks,
thrift   institutions,   credit   unions  and  other   nondepository   financial
institutions in four geographic banking markets where their offices are located.
Bank of Alma  primarily  competes in  Gratiot,  Midland,  Montcalm,  and Saginaw
Counties; Firstbank primarily in Isabella and Clare Counties; 1st Bank primarily
in Iosco, Oscoda, Ogemaw, and Roscommon Counties; and Bank of Lakeview primarily
in Mecosta and Montcalm Counties.

     Banks and bank holding companies are extensively regulated. The Corporation
is a bank holding company that is regulated by the Federal Reserve System.  Bank
of Alma, Firstbank, 1st Bank, and Bank of Lakeview are chartered under state law
and are supervised,  examined,  and regulated by the Federal  Deposit  Insurance
Corporation and the Financial  Institutions Bureau of the Michigan Department of
Consumer and Industry Services.

     Laws that govern banks  significantly  limit their business activities in a
number of respects.  Prior approval of the Federal  Reserve  Board,  and in some
cases various  other  governing  agencies,  is required for the  Corporation  to
acquire control of any additional banks or branches.  The business activities of
the  Corporation  and its  subsidiaries  are  limited  to  banking  and to other
activities  which are  determined  by the  Federal  Reserve  Board to be closely
related to banking.  Transactions  among the Corporation  and the  Corporation's
subsidiary banks are  significantly  restricted.  In addition,  bank regulations
govern  the  ability  of the  subsidiary  banks to pay  dividends  or make other
distributions to the Corporation.

                                       -2-
<PAGE>
     In addition to laws that affect businesses in general, banks are subject to
a number of federal and state laws and regulations  which have a material impact
on their business.  These include,  among others,  state usury laws,  state laws
relating to fiduciaries, the Truth In Lending Act, the Truth in Savings Act, the
Equal Credit Opportunity Act, the Fair Credit Reporting Act, the Expedited Funds
Availability Act, the Community  Reinvestment Act, the Home Mortgage  Disclosure
Act,  the Real Estate  Settlement  Procedures  Act,  the Bank  Secrecy  Act, the
Community Development and Regulatory Improvement Act, the Financial Institutions
Reform,  Recovery and  Enforcement  Act, the FDIC  Improvement  Act of 1991 (the
"FDIC  Improvement  Act"),  electronic  funds  transfer  laws,  redlining  laws,
antitrust laws, environmental laws, and privacy laws.

     The  enactment  of the  Gramm-Leach-Bliley  Act of  1999  (the  "GLB  Act")
represents a pivotal  point in the history of the financial  services  industry.
The GLB Act  sweeps  away large  parts of a  regulatory  framework  that had its
origins  in the  Depression  Era of the 1930s.  Effective  March 11,  2000,  new
opportunities  became  available  for  banks,  other  depository   institutions,
insurance  companies and securities firms to enter into combinations that permit
a single  financial  services  organization  to offer  customers a more complete
array of financial products and services.  The GLB Act provides a new regulatory
framework for regulation  through the "financial  holding  company,"  which will
have as its umbrella regulator the Federal Reserve Board.  Functional regulation
of the financial holding  company's  separately  regulated  subsidiaries will be
conducted  by their  primary  functional  regulator.  In order to  qualify  as a
financial  holding  company,  a bank  holding  company  must file an election to
become  a  financial  holding  company  and  each of its  banks  must  be  "well
capitalized" and "well managed." In addition,  the GLB Act makes satisfactory or
above Community Reinvestment Act compliance for insured depository  institutions
and their financial holding  companies  necessary in order for them to engage in
new  financial  activities.  The GLB Act provides a federal  right to privacy of
non-public personal information of individual customers. The Corporation and its
subsidiary  banks are also subject to certain  state laws that deal with the use
and distribution of non-public personal information.

     The  Corporation  believes  that the GLB Act could  significantly  increase
competition  in its business and is evaluating the  desirability  of electing to
become  a  financial  holding  company.  The  Corporation  believes  that  it is
qualified to elect  financial  holding company status but has not yet decided to
do so.

     The instruments of government monetary policy, as determined by the Federal
Reserve  Board,  may  influence  the  growth  and  distribution  of bank  loans,
investments,  and  deposits,  and may also  affect  interest  rates on loans and
deposits.  These policies have a significant  effect on the operating results of
banks.

     Under  applicable  laws,  regulations,  and policies,  the  Corporation  is
expected to act as a source of financial strength to each subsidiary bank and to
commit  resources  to support  each  subsidiary  bank.  Any  insured  depository
institution  owned by the Corporation may be assessed for losses incurred by the
Federal Deposit Insurance Corporation (the "FDIC") in connection with assistance
provided to, or the failure of, any other insured  depository  institution owned
by the Corporation.

     The FDIC has authority to impose special  assessments on insured depository
institutions  to repay FDIC  borrowings from the United States Treasury or other
sources  and to  establish  periodic  assessment  rates on Bank  Insurance  Fund
("BIF") member banks so as to maintain the BIF at the  designated  reserve ratio
defined  in the FDIC  Improvement  Act.  Bank of Alma and  Firstbank  also  hold
deposits  that are insured by the Savings  Association  Insurance  Fund ("SAIF")
administered by the FDIC.  Deposit insurance premiums on those deposits are paid
to the SAIF at rates  applicable to that fund. The FDIC has implemented a system
of risk-based premiums for deposit insurance pursuant to which the premiums paid
by a depository  institution will be based on the perceived probability that the
insurance funds will incur a loss in respect of that institution.

     Federal law allows bank holding  companies to acquire  banks located in any
state  in the  United  States  without  regard  to  geographic  restrictions  or
reciprocity requirements imposed by state law and to establish interstate branch
networks through  acquisitions of other banks.  Michigan and federal law permits
both U.S.  and non U.S.  banks to  establish  branch  offices in  Michigan.  The
Michigan  Banking  Code  permits,  in  appropriate  circumstances  and  with the
approval of the Commissioner:  (i) acquisition of Michigan banks by FDIC insured
banks,  savings banks, or savings and loan associations located in other states;
(ii) sale by a Michigan bank of branches to an FDIC insured bank,  savings bank,
or savings  and loan  association  located  in a state in which a Michigan  bank
could  purchase  branches  of the  purchasing  entity;  (iii)  consolidation  of
Michigan banks and FDIC insured banks, savings banks, or

                                       -3-
<PAGE>
savings and loan  associations  located in other states  having laws  permitting
such  consolidation;  (iv) establishment of branches in Michigan by FDIC insured
banks located in other states, the District of Columbia,  or U.S. territories or
protectorates  having laws  permitting a Michigan  bank to establish a branch in
such jurisdiction; and (v) establishment by foreign banks of branches located in
Michigan.

     Risk based capital and leverage  standards apply to all banks under federal
regulations.  The  risk-based  capital  ratio  standards  establish a systematic
analytical  framework that is intended to make regulatory  capital  requirements
sensitive to differences in risk profiles among banking organizations,  take off
balance sheet  liability  exposures into explicit  account in assessing  capital
adequacy, and minimize disincentives to hold liquid, low risk assets. Risk-based
capital  ratios are  determined by allocating  assets and specified  off-balance
sheet commitments into risk-weighting  categories.  Higher levels of capital are
required for categories perceived as representing greater risk.

     Failure to meet minimum  capital ratio  standards could subject a bank to a
variety of enforcement remedies available to the federal regulatory authorities,
including  restrictions  on certain kinds of activities,  restrictions  on asset
growth, limitations on the ability to pay dividends, the issuance of a directive
to increase  capital,  and the  termination  of deposit  insurance  by the FDIC.
Maintaining  capital  at  "well  capitalized"  levels  is one  condition  to the
assessment of federal deposit insurance premiums at the lowest available rate.

     Each of the Corporation's subsidiary banks, and the Corporation itself on a
consolidated  basis,  maintains  capital at levels which exceed both the minimum
and well capitalized levels under currently applicable regulatory  requirements.
The following table summarizes  compliance with regulatory capital ratios by the
Corporation and each of its subsidiary banks at December 31, 1999.
<TABLE>

                                                   Tier 1         Tier 1          Total
                                                  Leverage        Capital      Risk-based
                                                    Ratio          Ratio         Capital
<S>                                                 <C>           <C>            <C>
Minimum regulatory requirement                       4%             4%             8%
Well capitalized regulatory level                    5%             6%             10%

Firstbank Corporation-Consolidated                  8.49%         10.98%         12.24%
    Bank of Alma                                    8.72%         11.37%         12.63%
    Firstbank                                       7.96%          9.04%         10.29%
    1st Bank                                        7.47%          9.97%         11.23%
    Lakeview                                        9.98%         13.92%         15.17%
</TABLE>
     The following  table shows the amounts by which the  Corporation's  capital
(on a consolidated  basis) exceeds current  regulatory  requirements on a dollar
amount basis:
<TABLE>
                                                                                                   Total
                                                                Tier 1           Tier 1          Risk-based
                                                               Leverage          Capital          Capital
<S>                                                             <C>               <C>             <C>
Capital Balances  at December 31, 1999                          $52,735           $52,735          $58,780
Required regulatory  capital                                     24,844            19,213           38,427
                                                                 ------            ------           ------
Capital in excess of regulatory minimums                        $27,891           $33,522          $20,353
                                                                 ======            ======           ======
</TABLE>
                                       -4-
<PAGE>
     The nature of the business of the  Corporation's  subsidiaries is such that
they hold title,  on a temporary or permanent  basis,  to a number of parcels of
real  property.  These  include  property  owned for  branch  offices  and other
business  purposes as well as properties  taken in or in lieu of foreclosures to
satisfy loans in default. Under current state and federal laws, present and past
owners of real property may be exposed to liability for the cost of  remediation
of contamination  on or originating  from such properties,  even though they are
wholly innocent of the actions which caused the contamination.  Such liabilities
can be material and can exceed the value of the contaminated property.

                                       -5-
<PAGE>
     The following  tables  provide  information  concerning the business of the
registrant.

Distribution of Assets, Liabilities, and Shareholders' Equity
<TABLE>
                                                 Year Ended                    Year Ended                      Year Ended
                                              December 31, 1999             December 31, 1998               December 31, 1997
                                              -----------------             -----------------               -----------------
                                        Average              Average    Average            Average    Average             Average
(Dollars in thousands)                  Balance    Interest    Rate     Balance  Interest   Rate      Balance  Interest    Rate
<S>                                     <C>        <C>        <C>      <C>       <C>        <C>      <C>       <C>         <C>
Average Assets
  Interest earning assets:
    Taxable securities                  $ 60,033   $  3,651   6.08%    $ 55,861  $  3,431   6.15%   $  40,255  $  2,546    5.90%
    Tax exempt securities (1)             33,307      2,572   7.72       33,455     2,589   7.74       29,123     2,352    8.07
                                         -------    -------             -------   -------            --------   -------
      Total securities                    93,340      6,223   6.67       89,316     6,020   6.74       69,378     4,898    7.05

    Loans (1) (2)                        462,516     40,467   8.75      412,884    38,768   9.39      352,539    33,412    9.46
    Federal funds sold                     4,190        208   4.96       13,446       728   5.41        5,414       289    5.37
    Interest bearing deposits                999         55   5.50          809        42   5.20          309        22    7.17
                                       ---------  ---------             -------   -------           --------- ---------
      Total earning assets               561,045     46,953   8.37      516,455    45,558   8.82      427,640    38,621    9.02

  Nonaccrual loans                         2,034                          1,432                           519
  Less allowance for loan loss            (9,213)                        (8,543)                       (7,142)
  Cash and due from banks                 18,877                         19,173                        16,413
  Other non earning assets                34,700                         32,421                        23,009
                                        --------                       --------                      --------
      Total average assets              $607,443                       $560,938                      $460,439
                                         =======                        =======                      ========

Average Liabilities
  Interest bearing liabilities:
    Demand                              $143,828    $ 4,662   3.24%    $126,030    $4,440   3.52%    $ 95,572   $  3,393    3.55%
    Savings                               72,412      1,776   2.45       67,085     1,734   2.58       61,286      1,664    2.71
    Time                                 204,417     10,485   5.13      211,243    11,718   5.55      188,378     10,571    5.61
    Federal funds purchased and
      repurchase agreements               29,343      1,385   4.72       17,601       757   4.30       13,468        624    4.62
    Notes payable                         17,777        975   5.49       11,464       704   6.14        4,480        278    6.08
                                        --------   --------            --------   -------           ---------    -------
      Total interest bearing liabilities 467,777     19,283   4.12      433,423    19,353   4.47      363,184     16,530    4.49

  Demand deposits                         70,711                         63,257                        50,647
                                        --------                       --------                      --------
      Total funds                        538,488                        496,680                       413,831

  Other non interest bearing liabilities    8,203                         8,000                         5,368
                                        ---------                     ---------                      --------
      Total liabilities                  546,691                        504,680                       419,199

  Average shareholders' equity            60,752                         56,258                        41,240
                                        --------                       --------                      --------
       Total average liabilities
       and shareholders' equity          $607,443                      $560,938                      $460,439
                                          =======                       =======                       =======

  Net interest income (1)                           $27,670                       $26,205                       $22,091
                                                     ======                        ======                        ======

  Rate spread (1)                                             4.25%                         4.35%                           4.53%
                                                              ====                          ====                            ====

  Net interest margin (percent of
    average earning assets)  (1)                              4.92%                         5.06%                           5.16%
                                                              ====                          ====                            ====
</TABLE>

(1)  Presented on a fully taxable  equivalent  basis using a federal  income tax
     rate of 34%.
(2)  Interest income includes amortization of loan fees of $1,312,400,
     $1,726,000, and $1,387,300 respectively.  Interest on nonaccrual loans is
     not included.

                                       -6-
<PAGE>
Volume/Rate Analysis(1)
<TABLE>
                                                                 1999/1998                                1998/1997
                                                         Change in Interest Due to:                Change in Interest Due to:

                                                   Average        Average        Net          Average         Average       Net
                                                    Volume        Rate           Change        Volume         Rate          Change
                                                                                       (Dollars in thousands)
<S>                                               <C>          <C>            <C>            <C>              <C>         <C>
Interest Income:
Securities
     Taxable securities                           $   253      $     (33)     $    220       $    961         $  (76)     $    885
     Tax-exempt securities(2)                         (11)            (6)          (17)           338           (101)          237
                                                  -------      ---------      --------        -------           ----       -------
         Total securities                             242            (39)          203          1,299           (177)        1,122

Loans(2)                                            4,457         (2,758)        1,699          5,669           (313)        5,356
Federal funds Sold                                   (464)           (56)         (520)           435              4           439
Interest bearing deposits                              10              3            13             27             (7)           20
                                                  -------     ----------      --------       --------          -----      --------
     Total interest income on earning assets        4,245         (2,850)        1,395          7,430           (493)        6,937

Interest Expense:
Deposits
     Interest paying demand                           595           (373)          222          1,073            (26)        1,047
     Savings                                          133            (91)           42            152            (82)           70
     Time                                            (370)          (863)       (1,233)         1,270           (123)        1,147
                                                   ------        -------        ------         ------           ----        ------
         Total deposits                               358         (1,327)         (969)         2,495           (231)        2,264

Federal funds purchased and securities
     sold under agreements to repurchase              548             80           628            180            (47)          133
Notes payable                                         353            (82)          271            429             (3)          426
                                                   ------       --------       -------        -------          ------      -------

     Total interest expense on liabilities          1,259         (1,329)          (70)         3,104           (281)        2,823
                                                    -----         ------       -------         ------           ----        ------

Net Interest Income                                $2,986        $(1,521)      $ 1,465        $ 4,326          $(212)       $4,114
                                                    =====         ======        ======         ======           ====         =====
</TABLE>

(1)  Changes in  volume/rate  have been  allocated  between  the volume and rate
     variances on the basis of the ratio that the volume and rate variances bear
     to each other.
(2)  Interest is presented  on fully  taxable  equivalent  basis using a federal
     income tax rate of 34%.

                                       -7-
<PAGE>
Investment Portfolio

The carrying  values of  investment  securities  as of the dates  indicated  are
summarized as follows:
<TABLE>
                                                                December 31,
                                              1999                 1998                 1997
                                              ----                 ----                 ----
                                                          (Dollars in thousands)
<S>                                       <C>                 <C>                     <C>
Taxable
US Treasury                               $   8,002           $    9,250              $11,083
US Government agencies                       24,787               22,932               15,388
States and political subdivisions             5,654                4,839                2,196
Mortgage Backed Securities                    2,175                3,614                4,550
Corporate and other                          19,004               24,819               16,237
                                             ------             --------               ------
     Total taxable                           59,622               65,454               49,454

Tax-exempt
States and political subdivisions            30,644               36,257               33,124
                                             ------             --------               ------
     Total                                  $90,266             $101,711              $82,578
                                             ======              =======               ======
</TABLE>

                                       -8-
<PAGE>
Analysis of Investment Securities Portfolio

The following  table shows,  by class of  maturities  at December 31, 1999,  the
amounts and weighted average yields of such investment securities (1):
<TABLE>
                                                                    Carrying              Average
                                                                      Value                Yield(2)
                                                                        (Dollars in thousands)
<S>                                                                 <C>                    <C>
US Treasury:
    One year or less                                                $  3,502,343           6.0541%
    Over one through five years                                        4,499,688           6.2233
                                                                     -----------
          Total                                                     $  8,002,031           6.1493%

US Agencies:
    One year or less                                                $  4,292,611           8.4217%
    Over one through five years                                       12,726,033           5.0482
    Over five through ten years                                        5,217,873           6.2379
    Over ten years                                                     2,550,907           5.9809
                                                                     -----------
          Total                                                      $24,787,424           5.9788%

States & Political subdivisions:
    One year or less                                                $  5,315,940           8.9413%
    Over one through five years                                       12,503,552           8.9885
    Over five through ten years                                       15,317,824           8.3033
    Over ten years                                                     3,160,707           8.9515
                                                                     -----------
          Total                                                      $36,298,023           8.6892%

Corporate and Other:
    One year or less                                                $  8,943,842           6.1048%
    Over one through five years                                       10,060,009           6.0829
                                                                      ----------
          Total                                                      $19,003,851           6.0932%

Collateralized Mortgage Obligations
    Over five through ten years                                    $     935,238           5.7699%
    Over ten years                                                     1,239,650           6.3514
                                                                     -----------
          Total                                                     $  2,174,888           6.1013%

         TOTAL                                                       $90,266,217           7.1109%
                                                                      ==========           ======
</TABLE>

(1)      Calculated on the basis of the cost and effective  yields  weighted for
         the scheduled maturity of each security.

(2)      Weighted average yield has been computed on a fully taxable  equivalent
         basis.  The rates shown on  securities  issued by states and  political
         subdivisions  have been presented,  assuming a 34% tax rate. The amount
         of  the  adjustment,   due  to  the  fully  tax  equivalent   basis  of
         presentation, is as follows:

                                       -9-
<PAGE>
Analysis of Investment Securities Portfolio (cont.)
<TABLE>
                                                                                          Rate on
                                                                                          Taxable
                                             Tax-exempt                                  Equivalent
                                               Rate               Adjustment               Basis
<S>                                            <C>                  <C>                    <C>
One year or less                               5.87%                3.02%                  8.89%
Over 1 through 5 years                         5.74                 2.96                   8.70
Over 1 through 10 years                        5.30                 2.73                   8.04
Over 10 years                                  5.91                 3.04                   8.95

     Total                                     5.60%                2.88%                  8.48%
</TABLE>
The aggregate  book value of the  securities of no single issuer except the U.S.
Government or agencies  exceeded ten percent of the  Corporation's  consolidated
shareholders' equity as of December 31, 1999.

                                      -10-
<PAGE>
Loan Portfolio

The following table presents the loans outstanding at December 31,
<TABLE>
                                                        1999          1998            1997         1996           1995
                                                        ----          ----            ----         ----           ----
                                                                      (Dollars in thousands)
<S>                                                     <C>           <C>           <C>         <C>            <C>
Loan categories:
     Commercial and agricultural                        $227,855      $192,212      $158,219     $122,934      $115,779
     Real estate mortgages                               205,179       177,009       171,848      122,605        90,753
     Consumer                                             75,204        71,807        74,741       69,081        58,315
                                                        --------      --------      --------     --------      --------

         Total                                          $508,238      $441,028      $404,808     $314,620      $264,847
                                                        ========      ========       =======     ========       =======
</TABLE>

The following table shows the maturity of commercial and  agricultural  and real
estate  construction  loans  outstanding at December 31, 1999. Also provided are
the amounts due after one year  classified  according  to their  sensitivity  to
changes in interest rates.
<TABLE>
                                                   One year           One year to        After
                                                    or less            five years      five years        Total
                                                                          (Dollars in thousands)
<S>                                                <C>                 <C>            <C>             <C>
Commercial and agricultural                        $  95,586           $110,661        $21,608         $227,855
Real Estate Construction                              17,966              2,180          1,745           21,891
                                                    --------           --------        -------         --------
         Total                                      $113,552           $112,841        $23,353         $249,746
                                                     =======            =======         ======         ========

Loans due after one year:
With pre-determined rate                                               $107,745        $28,117         $135,862
With adjustable rates                                                       332              0              332
                                                                       --------        -------         --------
         Total                                                         $108,077        $28,117         $136,194
                                                                       ========        =======         ========
</TABLE>
                                      -11-
<PAGE>
Nonperforming Loans and Assets

The following table summarizes  nonaccrual,  troubled debt  restructurings,  and
past-due loans at December 31,
<TABLE>
                                                        1999           1998           1997            1996           1995
                                                        ----           ----           ----            ----           ----
                                                                             (Dollars in thousands)
<S>                                                    <C>          <C>              <C>            <C>             <C>
Nonperforming loans:
     Nonaccrual loans:
         Commercial and agricultural                   $   701      $   584          $   447        $   127         $   47
         Real estate mortgages                           1,454          186              800             79              0
         Consumer                                           10           20               27             12              0
                                                       -------      -------          -------        -------         ------
              Total                                      2,165          790            1,274            218             47

     Accruing Loans 90 days or more past due:
         Commercial and agricultural                       561          359              752            178              0
         Real estate mortgages                              74          241              426            475            319
         Consumer                                           28           21               37             36             67
                                                       -------      -------          -------        -------          -----
              Total                                        663          621            1,215            689            386

     Renegotiated loans:
         Commercial and agricultural                        55           86              121            150            182
         Real estate mortgages                               0            0                0              0              0
                                                      --------     --------         --------       --------         ------
              Total                                         55           86              121            150            182

Total nonperforming loans                                2,883        1,497            2,610          1,057            615

Property from defaulted loans                              511          527              663            130              0
                                                        ------       ------           ------         ------         ------
              Total nonperforming assets                $3,394       $2,024           $3,273         $1,187          $ 615
</TABLE>

(1)  Nonperforming assets are defined as nonaccrual loans, loans 90 days or more
     past due, property from defaulted loans, and renegotiated loans.

The gross  interest  income  that  would have been  recorded  for the year ended
December 31, 1999, if the  nonaccrual  and  renegotiated  loans had performed in
accordance  with their  original terms and had been  outstanding  throughout the
period, or since origination if held for part of the period,  was $134,545.  The
amount of interest income on those loans that was included in net income for the
period was $247,948.

Loan performance is reviewed regularly by external loan review specialists, loan
officers,  and  senior  management.  When  reasonable  doubt  exists  concerning
collectibility  of  interest  or  principal,  the loan is placed  in  nonaccrual
status.  Any  interest  previously  accrued  but not  collected  at that time is
reversed and charged against current earnings.

At December 31, 1999, the Corporation had $15,847,000 in commercial and mortgage
loans for which  payments  are  presently  current  although the  borrowers  are
experiencing  financial  difficulties.   Those  loans  are  subject  to  special
attention and their status is reviewed on a monthly basis.

As of December  31, 1999,  there were no  concentrations  of loans  exceeding 10
percent of total loans which are not otherwise  disclosed as a category of loans
in  the  consolidated  balance  sheets  of  the  Corporation  contained  in  the
Corporation's  Annual  Report to  shareholders  for the year ended  December 31,
1999.

                                      -12-
<PAGE>
Analysis of the Allowance for Loan Losses

The following table summarizes  changes in the allowance for loan losses arising
from loans charged off and  recoveries on loans  previously  charged off by loan
category  and  additions  to the  allowance  which  were  charged  to expense at
December 31,
<TABLE>
                                                        1999           1998           1997            1996           1995
                                                        ----           ----           ----            ----           ----
                                                                             (Dollars in thousands)
<S>                                                    <C>           <C>              <C>            <C>            <C>
Balance at beginning of period                         $9,048        $8,114           $6,247         $4,876         $4,100
Charge-offs:
     Commercial and agricultural                          240            71              211            110            164
     Real estate mortgages                                 67            60               79             45             81
     Consumer                                             492           581              980            625            493
                                                       ------         -----            -----          -----          -----
         Total charge-offs                                799           712            1,270            780            738
Recoveries:
     Commercial and agricultural                          234            97               97             83             97
     Real estate mortgages                                 20            47                7             28             63
     Consumer                                             300           325              309            202            269
                                                       ------         -----            -----          -----          -----
         Total recoveries                                 554           469              413            313            429
Net charge-offs                                           245           243              857            467            309
                                                       ------         -----            -----         ------         ------
Additions to allowance for loan losses                    514         1,177            2,724 (1)      1,838          1,085
                                                       ------         -----            -----          -----          -----
Balance at end of period                               $9,317        $9,048           $8,114         $6,247         $4,876
                                                        =====         =====            =====          =====          =====

Net charge-offs as a percent of average loans            .05%          .06%             .24%           .16%           .13%
</TABLE>
(1) Includes the allowance of Bank of Lakeview at date of acquisition of $1,326.

The  allowance  for  loan  losses  is based on  management's  evaluation  of the
portfolio,  past loan loss  experience,  current  economic  conditions,  volume,
growth, and composition of the loan portfolio,  and other relevant factors.  The
allowance is increased by  provisions  for loan losses that have been charged to
expense and reduced by net charge-offs.


Allocation of the Allowance for Loan Losses
     The allowance for loan losses was allocated to provide for possible  losses
within the following loan categories as of December 31,
<TABLE>
                              1999                  1998                  1997                 1996                    1995
                            -------------------------------------------------------------------------------------------------------
                      Allowance     %of      Allowance    %of      Allowance     %of      Allowance    %of      Allowance     %of
                         for      loans to     for      loans to     for       loans to     for      loans to      for      loans to
                        loan       total       loan      total      loan        total      loan       total       loan       total
                       losses      loans      losses     loans     losses       loans     losses      loans      losses      loans
<S>                    <C>         <C>        <C>        <C>       <C>          <C>       <C>         <C>        <C>         <C>
Commercial &
     agricultural      $5,344      45%        $4,758     44%       $3,806       39%       $2,763      39%        $2,232       44%
Real estate
     mortgages            539      40            476     40           516       42           364      39            880       34
Consumer                1,521      15          1,690     16         1,621       19         1,576      22          1,050       22
Unallocated             1,913                  2,124                2,171                  1,544                    714
                        -----     ---          -----    ---         -----     ----         -----     ---         ------      ---
         Total         $9,317     100%        $9,048    100%       $8,114     100%        $6,247     100%        $4,876      100%
                       ======     ===          =====    ===        ======     ===         ======     ===         ======      ===
</TABLE>

                                      -13-
<PAGE>
Average Deposits

The daily average  deposits and rates paid on such deposits for the years ending
December 31,
<TABLE>
                                                                1999                      1998                        1997
                                                                ----                      ----                        ----
                                                          Amount       Rate         Amount       Rate         Amount         Rate
                                                                                 (Dollars in thousands)
<S>                                                     <C>             <C>        <C>             <C>        <C>            <C>
Average Balance:
     Noninterest-bearing demand deposits                $  70,711                  $  63,257                  $  50,647
     Interest-bearing demand deposits                     143,828       3.24%        126,030       3.52%         95,572      3.55%
     Other savings deposits                                72,412       2.45%         67,085       2.58%         61,286      2.71%
     Other time deposits                                  204,417       5.13%        211,243       5.55%        188,378      5.61%
                                                          -------       ----         -------       ----         -------      ----
         Total average deposits                          $491,368       3.44%       $467,615       3.83%       $395,883      3.95%
                                                          =======       ====         =======       ====         =======      ====
</TABLE>

The time remaining until maturity of time certificates of deposit and other time
deposits of $100,000 or more at December  31, 1999,  was as follows  (Dollars in
Thousands):
<TABLE>
               <S>                                                                <C>
               Three months or less                                               $16,198
               Over three through six months                                        6,000
               Over six through twelve months                                      15,005
               Over twelve months                                                   4,793
                                                                                  -------
                        Total                                                     $41,996
</TABLE>

Return on Equity and Assets

The following table sets forth certain financial ratios for the years ended:
<TABLE>
                                                            1999              1998             1997
                                                            ----              ----             ----
<S>                                                         <C>              <C>              <C>
Financial ratios:
     Return on average total assets                          1.31%            1.30%            1.21%
     Return on average equity                               13.37%           12.98%           13.48%
     Average equity to average total assets                  9.81%           10.03%            8.96%
     Dividend payout ratio                                  35.78%           34.16%           33.51%
</TABLE>

                                      -14-
<PAGE>
Short Term Borrowed Funds

Included in short term borrowed funds are repurchase  agreements as described in
Note J to the  consolidated  financial  statements in the  Corporation's  Annual
Report to  shareholders  for the year ended December 31, 1999,  which consist of
the following:
<TABLE>
                                                                                      1999                1998             1997
                                                                                      ----                ----             ----
         <S>                                                                          <C>                 <C>              <C>
         Amounts outstanding at the end of the year                                   $21,519             $18,678          $12,932

         Weighted average interest rate at the end of the year                          4.17%               3.88%            4.23%

         Longest maturity                                                             1-18-00             1-20-99          2-20-98

         Maximum amount outstanding at any month end during year                      $21,519             $18,678          $13,911

         Approximate average amounts outstanding during the year                      $19,495             $15,618          $10,894

         Approximate weighted average interest rate for the year                        4.05%               4.15%            4.36%
</TABLE>

(1)  The weighted  average  interest  rates are derived by dividing the interest
     expense for the period by the daily average balance during the period.

                                      -15-
<PAGE>
ITEM 2.   Properties.

     The  offices  of the  Corporation  and the main  office of Bank of Alma are
located  at  311  Woodworth  Avenue,  Alma,  Michigan.  Bank  of  Alma  occupies
approximately  24,000  square feet of this building  owned by Bank of Alma.  The
Corporation's  Operations  Center  is housed in a 14,800  square  foot  building
located in Alma and owned by Bank of Alma.  The main office of  Firstbank -- Mt.
Pleasant  is located at 102 South  Main,  Mount  Pleasant,  Michigan.  The 5,600
square foot facility is leased. The lease will expire in 2001.  Firstbank has an
option to extend the term for an additional  five years.  The main office of 1st
Bank is  located  at 502 West  Houghton  Avenue,  West  Branch,  Michigan  in an
approximately  3,600  square  foot  building  owned by the Bank.  The  executive
offices of 1st Bank and a full  service  branch are  located in a 10,000  square
foot building  owned by the Bank and located at 601 West Houghton  Avenue,  West
Branch,  Michigan.  The main office of Bank of  Lakeview,  which is owned by the
Bank,  is located in a brick and block frame  building of  approximately  16,000
square feet at 506 South Lincoln  Avenue,  Lakeview,  Michigan.  The  subsidiary
banks  operate a total of 29 branch  facilities,  all but two of which are owned
and most of which are full service facilities and which range in size from 1,200
to 3,200 square feet used for banking  purposes.  In several  instances,  branch
facilities contain more space than required for current banking operations. This
excess space, totaling  approximately 17,000 square feet, is leased to unrelated
businesses.

     Management  considers the properties and equipment of the  Corporation  and
its  subsidiaries  to be well  maintained,  in  good  operating  condition,  and
adequate for their operations.

                                      -16-
<PAGE>
ITEM 3.   Legal Proceedings.

     The  Corporation  and its  subsidiaries  are  parties,  as  plaintiff or as
defendant, to routine litigation arising in the normal course of their business.
In the opinion of management, the liabilities arising from these proceedings, if
any, will not be material to the Corporation's consolidated financial condition.


ITEM 4.   Submission of Matters to a Vote of Security Holders.

     Not applicable.


Supplemental Item.  Executive Officers of the Registrant.

     The following information  concerning executive officers of the Corporation
who are not directors  has been omitted from the  registrant's  proxy  statement
pursuant to Instruction 3 to Regulation S-K, Item 401(b).

     Officers  of  the  Corporation  are  appointed  annually  by the  Board  of
Directors  of the  Corporation  and  serve  at the  pleasure  of  the  Board  of
Directors.  Information concerning the executive officers of the Corporation who
are not also directors or nominees for election to the Board of Directors of the
Corporation is given below. Except as otherwise indicated, all existing officers
have had the same principal employment for over 5 years.

     Mary D. Deci (age 53) has been  Chief  Financial  Officer,  Secretary,  and
Treasurer  of the  Corporation  since  1994.  Ms. Deci has been  Executive  Vice
President of Bank of Alma since 1999, and Controller of Bank of Alma since 1988.
She had been Senior Vice  President  of Bank of Alma from 1994 - 1999.  Ms. Deci
has been Vice  President of the  Corporation  and of Bank of Alma since 1989 and
has been an officer of Bank of Alma since 1988.

     Richard L. Jarvis (age 62) has been  Executive  Vice President of Firstbank
since  1991 and has been Vice  President  of the  Corporation  and an officer of
Firstbank  since 1987. Mr. Jarvis served as a director of Firstbank from 1987 to
1991.

     Dale A.  Peters (age 57) has been Vice  President  of the  Corporation  and
President,  Chief Executive  Officer,  and a director of 1st Bank since 1987. He
has been Chairman of the Board of 1st Bank since 1988.

     Richard J.  Schurtz  (age 63) has been Vice  President  of the  Corporation
since the  acquisition  of Bank of Lakeview in August of 1997.  Mr.  Schurtz has
been  President and Chief  Executive  Officer and a director of Bank of Lakeview
since 1994. Mr. Schurtz retired on January 7, 2000.

     Thomas R. Sullivan (age 49) was named President Elect of the Corporation in
June 1999,  and became  President  on  January  1, 2000.  He has also  served as
President,  Chief Executive  Officer and a director of Firstbank,  Mt. Pleasant,
since 1991. Mr.  Sullivan had been  Executive Vice President of the  Corporation
since 1996 and served as Vice President of the Corporation from 1991 to 1996.

     James E. Wheeler,  II (age 40), has been Vice President of the  Corporation
and Chief  Loan  Officer  of Bank of Alma  since  1989.  Mr.  Wheeler  was named
President  and CEO  elect of Bank of Alma in July  1999.  Mr.  Wheeler  has been
Executive  Vice  President  of Bank of Alma since 1999.  From 1994 to 1999,  Mr.
Wheeler served as Senior Vice President of Bank of Alma.

                                      -17-
<PAGE>
                                     PART II


ITEM  5.  Market for Registrant's Common Equity and Related Shareholder Matters.

     The  information  under the caption  "Common  Stock Data" on page 13 in the
registrant's annual report to shareholders for the year ended December 31, 1999,
is here incorporated by reference.


ITEM  6.  Selected Financial Data.

     The information under the heading  "Financial  Highlights" on page 3 in the
registrant's annual report to shareholders for the year ended December 31, 1999,
is here incorporated by reference.


ITEM  7.  Management's Discussion and Analysis of Financial Condition and
          Results of Operations.

     The information under the heading "Management's  Discussion and Analysis of
Financial  Condition  and  Results of  Operations"  on pages 4 through 12 in the
registrant's annual report to shareholders for the year ended December 31, 1999,
is here incorporated by reference.


ITEM  7A. Quantitative and Qualitative Disclosures About Market Risk.

     Information under the headings "Liquidity and Interest Rate Sensitivity" on
pages 8 and 9 and "Quantitative and Qualitative Disclosure About Market Risk" on
pages 9 through 11 in the  registrant's  annual report to  shareholders  for the
year ended December 31, 1999, is here incorporated by reference.


ITEM  8.  Financial Statements and Supplementary Data.

     The  report  of  independent   auditors  and  the  consolidated   financial
statements  on pages 14 through 32 and the  quarterly  results of  operations on
page 13 in the  registrant's  annual report to  shareholders  for the year ended
December 31, 1999, are here incorporated by reference.


ITEM  9.  Changes in and Disagreements with Accountants on Accounting and
          Financial Disclosure.

     None.

                                      -18-
<PAGE>
                                    PART III


ITEM  10. Directors and Executive Officers of the Registrant.

     The information  under the captions "Board of Directors" and "Section 16(a)
Beneficial Ownership Reporting Compliance" in the registrant's  definitive proxy
statement for its annual meeting of  shareholders  to be held Apri1 24, 2000, is
here incorporated by reference.


ITEM  11. Executive Compensation.

     Information  contained  under the captions  "Compensation  of Directors and
Executive   Officers"  and  "Compensation   Committee   Interlocks  and  Insider
Participation"  in the  registrant's  definitive  proxy statement for its annual
meeting of  shareholders  to be held April 24,  2000,  is here  incorporated  by
reference.


ITEM  12. Security Ownership of Certain Beneficial Owners and Management.

     The information  under the caption "Voting  Securities" in the registrant's
definitive  proxy  statement for its annual meeting of  shareholders  to be held
Apri1 24, 2000, is here incorporated by reference.


ITEM  13. Certain Relationships and Related Transactions.

     The information under the caption  "Compensation  Committee  Interlocks and
Insider  Participation"  in the registrant's  definitive proxy statement for its
annual meeting of shareholders  to be held April 24, 2000, is here  incorporated
by reference.

                                      -19-
<PAGE>
                                     PART IV


ITEM  14. Exhibits, Financial Statement Schedules, and Reports on Form 8-K.

(a)(l)   Financial Statements.

     The following  consolidated financial statements of the Corporation and its
subsidiaries  and report of independent  auditors are  incorporated by reference
from the registrant's  annual report to shareholders for the year ended December
31, 1999, in Item 8: Page Number in Statement or Report Annual Report

    Report of Independent Auditors                                            14
    Consolidated Balance Sheets as of December 31, 1999
       and 1998                                                               15
    Consolidated Statements of Income and Comprehensive
       Income for the years ended December 31, 1999, 1998, and 1997           16
    Consolidated Statements of Changes in Shareholders' Equity for
       the years ended December 31, 1999, 1998, and 1997                      17
    Consolidated Statements of Cash Flows for the years
       ended December 31, 1999, 1998, and 1997                                18
    Notes to Consolidated Financial Statements                             19-32

     The  consolidated  financial  statements,  notes to consolidated  financial
statements,  and report of independent auditors listed above are incorporated by
reference  in Item 8 of this  report  from  the  corresponding  portions  of the
registrant's annual report to shareholders for the year ended December 31, 1999.

     (2) Schedules to the consolidated  financial statements required by Article
9 of  Regulation  S-X are not  required  under the related  instructions  or are
inapplicable, and therefore have been omitted.

     (3) The following exhibits are filed as part of this report:

Number                          Exhibit

  3(a)        Articles  of  Incorporation.  Previously  filed as an  exhibit  to
              registrant's  Form 10-Q for the quarter ended March 31, 1997. Here
              incorporated by reference.

  3(b)        Bylaws.  Previously  filed  as  an  exhibit  to  the  registrant's
              Registration  Statement on Form S-2  (Registration  No.  33-68432)
              filed on September 3, 1993. Here incorporated by reference.

10(a)*        Form  of  Indemnity   Agreement   with   Directors  and  Officers.
              Previously  filed as an exhibit to the  registrant's  Registration
              Statement  on  Form  S-2  (Registration  No.  33-68432)  filed  on
              September 3, 1993. Here incorporated by reference.

10(b)*        Deferred Compensation Plan.  Previously filed as an exhibit to the
              registrant's Form 10-K for the year ended December 31, 1995.  Here
              incorporated by reference.

                                      -20-
<PAGE>
Number                           Exhibit


10(c)*        Trust under Deferred  Compensation  Plan.  Previously  filed as an
              exhibit  to  the  registrant's  Form  10-K  for  the  year   ended
              December 31, 1995. Here incorporated by reference.

10(d)*        Stock Option and Restricted  Stock Plan of 1993.  Previously filed
              as an appendix to the registrant's  definitive proxy statement for
              its annual  meeting of  shareholders  held  April 26,  1993.  Here
              incorporated by reference.

10(e)*        Stock Option and Restricted  Stock Plan of 1997.  Previously filed
              as an appendix to the registrant's  definitive proxy statement for
              its  annual  meeting  of  shareholders  on April  28,  1997.  Here
              incorporated by reference.

10(f)         Employee  Stock  Purchase  Plan of  1999.  Previously  filed as an
              exhibit to the  registrant's  Registration  Statement  on Form S-8
              (Registration  No.  333-89771)  filed on October  27,  1999.  Here
              incorporated by reference.

13            1999  Annual  Report to  Shareholders.  (This  report,  except for
              those portions which  are expressly  incorporated  by reference in
              this filing,  is furnished  for the  information of the Securities
              and Exchange Commission and  is not deemed "filed" as part of this
              filing.)    This  report  was   delivered   to  the   Registrant's
              shareholders as  an appendix to the  Registrant's  proxy statement
              dated  March 29,  2000,  relating  to the April 24,  2000,  annual
              shareholders  meeting,  which was  delivered  to the  Registrant's
              shareholders  in compliance  with Rule 14(a)-3  of the  Securities
              Act of 1934, as amended.

21            Subsidiaries of Registrant.

23            Consent of Crowe, Chizek and Company LLP.

24            Powers  of  Attorney.  Contained  on  the  signature  page of this
              report.

27            Financial Data Schedule for year ended December 31, 1999.

99            Firstbank Corporation 401(k) Plan Performance Table.

*Management contract or compensatory plan.

The  registrant  will  furnish  a  copy  of  any  exhibit  listed  above  to any
shareholder  of the registrant  without  charge upon written  request to Mary D.
Deci,  Secretary,  Firstbank  Corporation,  311 Woodworth Avenue, P.O. Box 1029,
Alma, Michigan 48801.

(b)  Reports on Form 8-K.

     The registrant filed no Current Reports on Form 8-K during the last quarter
of the period covered by this report.

                                      -21-
<PAGE>
                                   SIGNATURES

     Pursuant  to the  requirements  of  Section  13 or 15(d) of the  Securities
Exchange Act of 1934, the Registrant has duly caused this report to be signed on
its behalf by the  undersigned,  thereunto duly  authorized,  dated February 28,
2000.

                                    FIRSTBANK CORPORATION


                                    /s/ Thomas R. Sullivan
                                    Thomas R. Sullivan
                                    President, Chief Executive Officer
                                    (Principal Executive Officer)


                                    /s/ Mary D. Deci
                                    Mary D. Deci
                                    Vice President, Chief Financial Officer
                                    (Principal Financial and Accounting Officer)


     Pursuant to the  requirements of the Securities  Exchange Act of 1934, this
report has been signed by the following  persons on behalf of the Registrant and
in the capacities and on the dates  indicated.  Each director of the Registrant,
whose  signature  appears below,  hereby appoints Thomas R. Sullivan and Mary D.
Deci, and each of them severally,  as his attorney-in-fact,  to sign in his name
and on his  behalf,  as a  director  of the  Registrant,  and to file  with  the
Commission any and all Amendments to this Report on Form 10-K.

         Signature                                                     Date

/s/ Duane A. Carr                                              February 28, 2000
Duane A. Carr


/s/ William E. Goggin                                          February 28, 2000
William E. Goggin


/s/ Edward B. Grant                                            February 25, 2000
Edward B. Grant


/s/ Charles W. Jennings                                        February 29, 2000
Charles W. Jennings


/s/ Phillip G. Peasley                                         February 28, 2000
Phillip G. Peasley


/s/ David D. Roslund                                           February 28, 2000
David D. Roslund


/s/ Thomas R. Sullivan                                         February 28, 2000
Thomas R. Sullivan
<PAGE>
                                                                      EXHIBIT 13

                              Firstbank Corporation



                                      1999
                                  Annual Report



This 1999 Annual Report  contains  audited  financial  statements and a detailed
financial  review.  This  is  Firstbank  Corporation's  1999  annual  report  to
shareholders.  Although attached to our proxy statement, this report is not part
of our proxy  statement,  is not deemed to be  soliciting  material,  and is not
deemed to be filed with the  Securities  and  Exchange  Commission  (the  "SEC")
except  to the  extent  that it is  expressly  incorporated  by  reference  in a
document filed with the SEC.

The 1999 Report to Shareholders  accompanies this proxy  statement.  That report
presents information  concerning the business and financial results of Firstbank
Corporation  in a format and level of detail that we believe  shareholders  will
find useful and  informative.  Shareholders  who would like to receive even more
detailed  information than that contained in this 1999 Annual Report are invited
to request our Annual Report on Form 10-K.

Firstbank  Corporation's  Form 10-K Annual Report to the Securities and Exchange
Commission  will be  provided to any  shareholder  without  charge upon  written
request.  Requests should be addressed to Mary Deci,  Chief  Financial  Officer,
Firstbank  Corporation,  311 Woodworth  Avenue,  P.O. Box 1029,  Alma,  Michigan
48801-6029.
<PAGE>
FIRSTBANK CORPORATION
CONSOLIDATED BALANCE SHEETS
<TABLE>
                                                                             December 31
                                                                             -----------
                                                                   1999                      1998
                                                                   ----                      ----
ASSETS
<S>                                                              <C>                      <C>
Cash and due from banks                                          $  24,786,354            $  22,203,430
Short term investments                                                 410,519               13,288,206
                                                                 -------------             ------------
                    Total cash and cash equivalents                 25,196,873               35,491,636

 Securities available for sale                                      90,266,217              101,711,023
 Loans:
   Loans held for sale                                               1,117,160                5,454,928
   Portfolio loans
     Commercial                                                    227,854,617              192,212,168
     Real estate mortgage                                          204,062,307              171,554,004
     Consumer                                                       75,204,334               71,806,822
                                                                  ------------             ------------
                                        Total loans                508,238,418              441,027,922
   Less allowance for loan losses                                   (9,317,000)              (9,048,000)
                                                                 -------------            -------------
                                          Net loans                498,921,418              431,979,922

 Premises and equipment, net                                        14,928,427               14,057,619
 Intangibles                                                         8,916,984                9,534,210
 Accrued interest receivable                                         3,489,060                3,463,572
 Other assets                                                        8,833,070                6,775,852
                                                                 -------------            -------------
                                       TOTAL ASSETS               $650,552,049             $603,013,834
                                                                   ===========              ===========
 LIABILITIES AND SHAREHOLDERS' EQUITY
 LIABILITIES
 Deposits:
    Noninterest bearing demand accounts                          $  75,843,929            $  68,887,968
    Interest bearing accounts:
      Demand                                                       136,196,228              146,741,509
      Savings                                                       70,526,731               69,514,970
      Time                                                         208,836,832              208,908,518
                                                                   -----------              -----------
                                     Total deposits                491,403,720              494,052,965
 Securities sold under agreements to
    repurchase and overnight borrowings                             51,819,165               26,577,527
 Notes payable                                                      38,384,277               14,316,550
 Accrued interest payable                                            1,255,070                1,311,406
 Other liabilities                                                   6,657,767                6,980,442
                                                                 -------------            -------------
                                  Total liabilities                589,519,999              543,238,890
 SHAREHOLDERS' EQUITY
 Preferred stock; no par value,
    300,000 shares authorized, none issued
 Common stock; 10,000,000 shares authorized;
    4,693,765 and 4,527,256 shares issued and
    outstanding in 1999 and 1998 respectively                       55,262,941               52,796,743
 Retained earnings                                                   6,433,294                5,874,601
 Accumulated other comprehensive income                               (664,185)               1,103,600
                                                                 -------------            -------------
                         Total shareholders' equity                 61,032,050               59,774,944
                                                                  ------------             ------------

                              TOTAL LIABILITIES AND
                               SHAREHOLDERS' EQUITY               $650,552,049             $603,013,834
                                                                   ===========              ===========
</TABLE>
See notes to consolidated financial statements.
<PAGE>
FIRSTBANK CORPORATION
CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME
<TABLE>
                                                                                   Year Ended December 31
                                                                                   ----------------------
                                                                       1999                 1998                 1997
                                                                       ----                 ----                 ----
<S>                                                                     <C>                 <C>                  <C>
 Interest income:
   Loans, including fees                                                $40,450,730         $38,498,073          $33,385,960
   Securities:
     Taxable                                                              3,651,268           3,466,878            2,546,186
     Exempt from federal income tax                                       1,697,457           1,791,291            1,620,493
   Short term investments                                                   263,029             728,105              311,464
                                                                       ------------        ------------         ------------
                                         Total interest income           46,062,484          44,484,347           37,864,103
 Interest expense:
   Deposits                                                              16,923,239          17,891,968           15,628,237
   Notes payable and other                                                2,360,089           1,461,240              901,502
                                                                        -----------         -----------         ------------
                                        Total interest expense           19,283,328          19,353,208           16,529,739
                                                                         ----------          ----------           ----------
                                           Net interest income           26,779,156          25,131,139           21,334,364
 Provision for loan losses                                                  514,000           1,177,000            1,398,000
                                                                       ------------         -----------          -----------
                                     Net interest income after
                                     provision for loan losses           26,265,156          23,954,139           19,936,364
 Noninterest income:
   Service charges on deposit accounts                                    1,577,526           1,499,200            1,227,700
   Gain on sale of mortgage loans                                           882,704           2,099,619              759,378
   Mortgage servicing, net of amortization                                  201,804             (14,591)             247,529
   Trust fees                                                               381,511             327,464              273,222
   Gain (loss) on sale of securities                                         (1,385)              3,329              (29,732)
   Other                                                                  2,326,639           1,952,708            1,219,254
                                                                        -----------        ------------          -----------
                                      Total noninterest income            5,368,799           5,867,729            3,697,351
 Noninterest expense:
   Salaries and employee benefits                                        10,504,581           9,768,488            8,032,608
   Occupancy                                                              3,037,218           2,970,065            2,128,511
   Amortization of intangibles                                              617,226             756,430              826,924
   FDIC Insurance premium                                                    76,080              71,923               43,864
   Michigan Single Business tax                                             564,600             389,800              359,567
   Other                                                                  5,268,217           5,445,592            4,433,510
                                                                        -----------        ------------          -----------
                                     Total noninterest expense           20,067,922          19,402,298           15,824,984
                                                                         ----------         -----------           ----------
                            Income before federal income taxes           11,566,033          10,419,570            7,808,731
 Federal income taxes                                                     3,530,000           3,117,000            2,251,000
                                                                        -----------        ------------          -----------

                                                    NET INCOME         $  8,036,033       $   7,302,570         $  5,557,731
Other comprehensive income:
   Change in unrealized gain (loss) on
      securities, net of tax and reclassification effects                (1,767,785)            216,541              323,720
                                                                       ------------          ----------           ----------

                                          COMPREHENSIVE INCOME         $  6,268,248       $   7,519,111         $  5,881,451
                                                                          =========           =========            =========

   Basic earnings per share                                                   $1.70               $1.54                $1.34
                                                                               ====                ====                 ====

   Diluted earnings per share                                                 $1.66               $1.48                $1.30
                                                                               ====                ====                 ====
</TABLE>
 See notes to consolidated financial statements.
<PAGE>
FIRSTBANK CORPORATION
CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY
FOR THE YEARS ENDED DECEMBER 31, 1999, 1998 AND 1997
<TABLE>
                                                                                                     Accumulated
                                                                                                        Other
                                                               Common           Retained           Comprehensive
                                                               Stock            Earnings               Income           Total
<S>                                                          <C>               <C>                 <C>              <C>
Balances at January 1, 1997                                  $24,228,132       $8,296,590          $   563,339      $  33,088,061
Net income for 1997                                                             5,557,731                               5,557,731
Cash dividends-$.43 per share                                                  (1,862,378)                             (1,862,378)
5% stock dividend-224,727 shares                               4,560,786       (4,571,057)                                (10,271)
Issuance of 12,847 shares of common
  stock through exercise of stock options                        163,566                                                  163,566
Issuance of 28,214 shares of common stock
  through the dividend reinvestment plan                         479,436                                                  479,436
Issuance of 22,860 shares of common stock from
  supplemental shareholder investments                           402,894                                                  402,894
Issuance of 898,830 shares of common
   stock pursuant to the acquisition                          16,389,135                                               16,389,135
Net change in unrealized appreciation
  (depreciation) on securities available
  for sale, net of tax of $166,765                                                                     323,720            323,720
                                                              ----------        ---------              -------         ----------
                         BALANCES AT DECEMBER 31, 1997        46,223,949        7,420,886              887,059         54,531,894

Net income for 1998                                                             7,302,570                               7,302,570
Cash dividends-$.53 per share                                                  (2,494,909)                             (2,494,909)
5% stock dividend-226,157 shares                               6,353,282       (6,353,946)                                   (664)
Issuance of 15,115 shares of common
  stock through exercise of stock options                        251,492                                                  251,492
Issuance of 23,097 shares of common stock
  through the dividend reinvestment plan                         635,966                                                  635,966
Issuance of 17,584 shares of common stock from
  supplemental shareholder investments                           482,354                                                  482,354
Net change in unrealized appreciation (depreciation) on
  securities available for sale, net of tax of $111,551                                                216,541            216,541
Purchase of 36,740 shares of stock                            (1,213,670)                                              (1,213,670)
Issuance of 1,584 shares of common stock                          63,370                                                   63,370
                                                              ----------        ---------            ---------         ----------
                         BALANCES AT DECEMBER 31, 1998        52,796,743        5,874,601            1,103,600         59,774,944

Net income for 1999                                                             8,036,033                               8,036,033
Cash dividends-$.61 per share                                                  (2,874,108)                             (2,874,108)
5% stock dividend-224,526 shares                               4,602,334       (4,602,783)                                   (449)
Issuance of 50,310 shares of common
  stock through exercise of stock options                        816,769                                                  816,769
Issuance of 44,246 shares of common stock
  through the dividend reinvestment plan                       1,098,099                                                1,098,099
Issuance of 19,807 shares of common stock from
  supplemental shareholder investments                           527,549                                                  527,549
Purchase of 180,150 shares of stock                           (4,792,687)                                              (4,792,687)
Issuance of 7,770 shares of common stock                         213,685                                                  213,685
Net change in unrealized appreciation
  (depreciation) on securities available
  for sale, net of tax of ($911,674)                                                                (1,767,785)        (1,767,785)
                                                             -----------       ----------          ------------       -----------
                         BALANCES AT DECEMBER 31, 1999       $55,262,492       $6,433,743          $  (664,185)       $61,032,050
                                                             ===========       ==========          ===========        ===========
</TABLE>
 See notes to consolidated financial statements.
<PAGE>
FIRSTBANK CORPORATION CONSOLIDATED STATEMENTS OF CASH FLOWS
<TABLE>
                                                                                             Year Ended December 31
                                                                                             ----------------------
                                                                                      1999             1998           1997
                                                                                      ----             ----           ----
<S>                                                                                  <C>          <C>              <C>
OPERATING ACTIVITIES
     Net income                                                                      $  8,036,033 $    7,302,570   $  5,557,731
     Adjustments to reconcile net income to net cash from operating activities:
       Provision for loan losses                                                          514,000      1,177,000      1,398,000
       Depreciation of premises and equipment                                           1,342,052      1,480,897      1,033,620
       Net amortization of security premiums/discounts                                    303,260        122,223        131,273
       Loss (gain) on sale of securities                                                    1,385         (3,329)        29,732
       Amortization of intangibles                                                        617,226        756,430        826,924
       Gain on sale of mortgage loans                                                    (882,704)    (2,099,619)      (759,378)
       Proceeds from sales of mortgage loans                                           57,565,972    152,673,876     50,910,223
       Loans originated for sale                                                      (52,345,500)  (152,112,394)   (47,311,773)
       Deferred federal income tax benefit                                               (305,000)      (356,000)      (285,000)
       Increase in accrued interest receivable and other assets                          (866,031)      (693,761)    (4,049,673)
       Increase (decrease) in accrued interest payable and other liabilities             (379,011)       916,602      3,196,620
                                                                                     ------------ --------------    -----------
              NET CASH FROM OPERATING ACTIVITIES                                       13,601,682      9,164,495     10,678,299
INVESTING ACTIVITIES

     Cash acquired from Lakeview Financial Corporation                                                                1,724,418
     Proceeds from sale of securities available for sale                                7,017,959        609,415      1,560,907
     Proceeds from maturities of securities available for sale                         29,480,622     28,935,385     28,153,606
     Purchases of securities available for sale                                       (28,037,880)   (48,468,741)   (42,239,442)
     Net increase in portfolio loans                                                  (71,793,264)   (34,924,784)   (23,427,147)
                                                                                                                    ============
     Net purchases of premises and equipment                                           (2,212,860)    (2,121,451)    (2,074,625)
                                                                                      ------------ --------------   ------------

              NET CASH FROM INVESTING ACTIVITIES                                      (65,545,423)   (55,970,176)   (36,302,283)
FINANCING ACTIVITIES
     Net increase (decrease) in deposits                                               (2,649,245)    48,387,144     13,586,053
     Net increase in securities sold under
       agreements to repurchase and overnight borrowings                               25,241,638      5,344,646     12,400,289
     Retirement of notes payable                                                          (14,127)       (13,327)       (14,160)
     Proceeds from Federal Home Loan Bank borrowings                                   31,720,000     14,750,000      5,364,000
     Retirement of Federal Home Loan Bank borrowings                                   (7,638,146)    (8,010,588)    (1,998,414)
     Cash dividends and cash paid in lieu of fractional shares on stock dividend       (2,874,557)    (2,495,573)    (1,872,649)
     Purchase of common stock                                                          (4,792,687)    (1,213,670)
     Net proceeds from issuance of common stock                                         2,656,102      1,433,182      1,045,896
                                                                                      -----------  -------------    -----------
              NET CASH FROM FINANCING ACTIVITIES                                       41,648,978     58,181,814     28,511,015
                                                                                       ----------   ------------     ----------
INCREASE IN CASH AND CASH EQUIVALENTS                                                 (10,294,763)    11,376,133      2,887,031
Cash and cash equivalents at beginning of year                                         35,491,636     24,115,503     21,228,472
                                                                                       ----------   ------------     ----------
CASH AND CASH EQUIVALENTS AT END OF YEAR                                              $25,196,873  $  35,491,636    $24,115,503
                                                                                       ==========   ============     ==========
Supplemental disclosure of cash flow information: Cash paid during the year for:
        Interest                                                                      $19,339,664  $  19,349,433    $14,944,446
        Income taxes                                                                    4,000,000      3,150,000      2,135,000
   Non-cash investing and financing activities:
        Acquisition of Lakeview Financial Corporation
             Common stock issued                                                                                    $16,006,389
             Fair value of stock options                                                                                382,776
             Fair value of assets acquired                                                                           88,513,535
             Fair value of liabilities assumed                                                                       77,410,379
</TABLE>
See notes to consolidated financial statements.
<PAGE>
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

NOTE A--SIGNIFICANT ACCOUNTING POLICIES

Nature of Operations:  Firstbank  Corporation  (the "Company") is a bank holding
company.  Each subsidiary bank of the Company is a full service  community bank.
The  subsidiary  banks  offer all  customary  banking  services,  including  the
acceptance of checking, savings and time deposits, and the making of commercial,
agricultural,  real estate,  personal,  home  improvement,  automobile and other
installment  and consumer  loans.  Trust  services are provided  throughout  the
Company's service area by one of its subsidiary  banks. The consolidated  assets
of the Company of $650  million as of December  31,  1999,  primarily  represent
commercial  and retail banking  activity.  Mortgage loans serviced for others of
$234 million and trust  assets of $74 million as of December  31, 1999,  are not
included in the Company's consolidated balance sheet.

Principles of Consolidation:  The consolidated  financial statements include the
accounts  of the  Company  and its  wholly  owned  subsidiaries:  Bank of  Alma,
Firstbank,   1st  Bank,  and  Bank  of  Lakeview  (the  "Banks"),  1st  Armored,
Incorporated,   and  1st  Collections,   Incorporated,   after   elimination  of
intercompany accounts and transactions.

Use of Estimates:  The  preparation of financial  statements in conformity  with
generally accepted  accounting  principles requires management to make estimates
and assumptions  that affect the reported  amounts of assets and liabilities and
disclosure of  contingent  assets and  liabilities  at the date of the financial
statements and the reported amounts of revenues and expenses during the reported
period. Actual results could differ from those estimates.

Certain  Significant  Estimates:  The primary  estimates  incorporated  into the
Company's financial  statements which are susceptible to change in the near term
include the allowance for loan losses and the  determination  and carrying value
of certain financial instruments.

Current Vulnerability Due to Certain  Concentrations:  The Company's business is
concentrated  in the  mid-central  section of the lower  peninsula  of Michigan.
Management is of the opinion that no concentrations  exist that make the Company
vulnerable to the risk of a near term severe impact. While the loan portfolio is
diversified,  the customers' ability to honor their debts is partially dependent
on the local economies. The Company's service area is primarily dependent on the
manufacturing (automotive and other),  agricultural and recreational industries.
Most commercial and agricultural loans are secured by business assets, including
commercial  and  agricultural  real estate and federal  farm agency  guarantees.
Generally,  consumer loans are secured by various items of personal property and
mortgage loans are secured by  residential  real estate.  The Company's  funding
sources  include time deposits and other deposit  products  which bear interest.
Periods of rising  interest  rates result in an increase in the cost of funds to
the Company.

Cash and Cash  Equivalents:  Cash and  cash  equivalents  include  cash on hand,
amounts  due from  banks,  and short term  investments  which  include  interest
bearing deposits with banks, federal funds sold, and overnight money market fund
investments.  Generally,  federal  funds and  overnight  money  market funds are
purchased for a one day period.  The Company reports customer loan transactions,
deposit  transactions,  and repurchase  agreements and overnight borrowings on a
net cash flow basis.

Securities: Securities available for sale consist of bonds and notes which might
be sold prior to maturity due to changes in interest  rates,  prepayment  risks,
yield and  availability  of alternative  investments,  liquidity  needs or other
factors.  Securities classified as available for sale are reported at their fair
value and the related  unrealized  holding gain or loss (the difference  between
the fair value and amortized  cost of the securities so classified) is reported,
net of related  income tax effects,  as a separate  component  of  shareholders'
equity  until  realized.  Gains and  losses on sales  are  determined  using the
specific  identification method. Premium and discount amortization is recognized
in interest income using the level yield method over the period to maturity.

Mortgage  Banking  Activities:  Servicing  rights are  recognized  as assets for
purchased  rights and for the allocated  value of retained  servicing  rights on
loans sold.  Servicing rights are expensed in proportion to, and over the period
of, estimated net servicing revenues.  Impairment is evaluated based on the fair
value of the rights,  using  groupings  of the  underlying  loans as to interest
rates and then,  secondarily,  as to geographic and prepayment  characteristics.
Any impairment of a grouping is reported as a valuation allowance.

Loans: Loans receivable, for which management has the intent and ability to hold
for the foreseeable  future or payoff,  are reported at their outstanding unpaid
principal  balances reduced by charge offs and net of any deferred fees or costs
on originated loans, or unamortized premiums or discounts. Loan origination fees
and certain origination costs are capitalized and recognized as an adjustment of
the yield of the related loan.  Loans held for sale are reported at the lower of
cost or market, on an aggregate basis.
<PAGE>
Allowance  for Loan Losses:  The  allowance  for loan losses is  maintained at a
level  believed by  management to be adequate to absorb  inherent  losses in the
loan portfolio.  Management's  determination of the adequacy of the allowance is
based on an  evaluation of the  portfolio,  past loan loss  experience,  current
economic  conditions,  volume,  growth and composition of the loan portfolio and
other relevant factors. The allowance is increased by provisions for loan losses
charged to expense and reduced by charge offs, net of recoveries.

The valuation of loans is reviewed on an ongoing basis for impairment. A loan is
impaired  when it is  probable  that the  Company  will be unable to collect all
amounts due according to the contractual  terms of the loan agreement.  Impaired
loans are measured based on the present value of expected cash flows  discounted
at the loan's  effective  interest  rate or, as a  practical  expedient,  at the
loan's observable market price or at the fair value of collateral if the loan is
collateral dependent. Loans considered to be impaired are reduced to the present
value of  expected  future  cash  flows or to the fair value of  collateral,  by
allocating a portion of the  allowance  for loan losses to such loans.  If these
allocations cause an increase in the allowance for loan losses, such increase is
reported as bad debt expense.

Smaller  balance  homogeneous  loans such as  residential  first  mortgage loans
secured  by one to  four  family  residences,  residential  construction  loans,
automobile, home equity and second mortgage loans are collectively evaluated for
impairment.   Commercial  loans  and  first  mortgage  loans  secured  by  other
properties are evaluated  individually  for impairment.  When credit analysis of
the  borrower's   operating  results  and  financial   condition  indicates  the
underlying  ability of the  borrower's  business  activity is not  sufficient to
generate  adequate cash flow to service the business' cash needs,  including the
Company's  loans to the borrower,  the loan is evaluated for  impairment.  Often
this is  associated  with a delay or  shortfall  in payments of 90 days or less.
Commercial  loans are rated on a scale of 1 to 8, with  grades 1 to 4 being pass
grades,  5 being special  attention or watch,  6  substandard,  7 doubtful and 8
loss. Loans graded 6, 7 and 8 are considered for impairment. Loans are generally
moved to nonaccrual  status when 90 days or more past due. These loans are often
considered  impaired.  Impaired loans, or portions thereof, are charged off when
deemed uncollectible.

Premises and Equipment:  Premises and equipment are stated on the basis of cost,
less  accumulated  depreciation.  Depreciation  is computed  over the  estimated
useful  lives of the assets,  primarily  by  accelerated  methods for income tax
purposes, and by the straight line method for financial reporting purposes.

Other Real Estate:  Other real estate  (included as a component of other assets)
includes  properties  acquired  through  either  a  foreclosure   proceeding  or
acceptance of a deed in lieu of foreclosure  and is initially  recorded at lower
of cost or fair value at the date of foreclosure, establishing a new cost basis.
These properties are evaluated periodically and are carried at the lower of cost
or estimated fair value less estimated costs to sell.

Acquisition Intangibles:  The acquisition of purchased subsidiaries and branches
has  included  amounts  related to the value of customer  deposit  relationships
("core deposit intangibles") and excess of cost over estimated fair value of net
assets acquired  ("goodwill").  The core deposit  intangibles are amortized over
the  expected  life of the value of the acquired  relationship.  The goodwill is
amortized  using the straight  line method for periods of not less than 15 years
or more than 20 years.

Interest  Income:  Interest on loans is accrued over the term of the loans based
upon  the  principal  outstanding.  The  carrying  value  of  impaired  loans is
periodically adjusted to reflect cash payments, revised estimates of future cash
flows and  increases  in the  present  value of  expected  cash flows due to the
passage of time. Cash payments representing interest income are reported as such
and other cash payments are reported as reductions in carrying value.  Increases
or decreases in carrying value due to changes in estimates of future payments or
the passage of time are reported as reductions or increases in bad debt expense.

Income  Taxes:  The Company  records  income tax expense  based on the amount of
taxes due on its tax return plus the change in deferred taxes computed, based on
the future tax  consequences  of  temporary  differences  between  the  carrying
amounts and tax bases of assets and  liabilities,  using enacted tax rates.  The
Company and its subsidiaries file a consolidated  federal income tax return on a
calendar year basis.

Earnings Per Share: Basic earnings per share is based on weighted average common
shares  outstanding.  Diluted earnings per share includes the dilutive effect of
additional common shares issuable under stock options. All per share amounts are
restated for stock  dividends and stock splits  through the date of issue of the
financial statements.

Comprehensive Income: Comprehensive income consists of net income and unrealized
gains and losses on securities  available for sale which is also recognized as a
separate component of equity. Accumulated other comprehensive income consists of
unrealized gains and losses on securities available for sale.

Supplemental  Disclosure  of Non-Cash  Investing  Activities:  During 1997,  the
Company transferred $2,886,318 from loans held for sale to portfolio loans.
<PAGE>
Reclassification:  Certain  1998 and 1997  amounts  have  been  reclassified  to
conform to the 1999 presentation.

Future Accounting Changes:  Beginning January 1, 2001, a new accounting standard
will require all derivatives to be recorded at fair value.  Unless designated as
hedges,  changes in these fair values will be recorded in the income  statement.
Fair value  changes  involving  hedges will  generally be recorded by offsetting
gains and losses on the hedge and on the hedged item,  even if the fair value of
the  hedged  item is not  otherwise  recorded.  This is not  expected  to have a
material effect; however, the actual effect will depend upon derivative holdings
when the standard becomes effective.

Segment  Information:  While the Company's  chief  decision  makers  monitor the
revenue  streams of various  products and services,  operations  are managed and
financial performance is evaluated on a company wide basis. Accordingly,  all of
the Company's  banking  operations are considered by Management to be aggregated
in one reportable operating segment.


NOTE B-ACQUISITIONS/DIVESTURES

The Company did not consummate any acquisitions  during 1999. On August 8, 1997,
the Company  completed its acquisition of Lakeview  Financial  Corporation.  The
purchase price of the transaction was $17 million based on the Company's trading
prices for a 20 day period ending six days prior to the merger.  Over 98% of the
common stock shareholders of Lakeview Financial  Corporation  elected to receive
the  Company's  stock,  resulting  in the  issuance of 898,830  shares.  Cash of
$681,000 and options for 23,594  shares with  exercise  prices of $6.59 to $9.74
completed the merger.

The acquisition was accounted for as a purchase  transaction.  Accordingly,  the
results of operations of Lakeview Financial  Corporation are included with those
of the Company for periods  subsequent  to the date of merger.  Bank of Lakeview
continues to operate as a community bank in the five communities (six locations)
of their offices.

On April 1, 1999,  the  Company's  Bank of Alma  subsidiary  sold its  insurance
agency,  Niles  Agency,  Incorporated,  to an unrelated  third party.  Operating
results of the Niles Agency are included in consolidated  results until the date
of sale.  A gain of $59,000 was  recognized  on the sale of the  agency,  and is
included  in  other  income  of  the  consolidated   statements  of  income  and
comprehensive  income.  The effect of the operation and sale of the Niles Agency
was not material to the consolidated financial statements of the Company.


NOTE C--RESTRICTIONS ON VAULT CASH AND DUE FROM BANK ACCOUNTS

The Company's subsidiary banks are required to maintain average reserve balances
in the form of cash  and  noninterest  bearing  balances  due  from the  Federal
Reserve Bank. The average reserve balances required to be maintained at December
31, 1999 and 1998, were $2,765,000 and $2,759,000  respectively.  These reserves
do not earn interest.
<PAGE>
NOTE D--SECURITIES

The carrying amounts of securities and their fair values were as follows:
<TABLE>
                                                                           Gross             Gross
                                                   Amortized            Unrealized        Unrealized            Fair
                                                     Cost                  Gains            Losses              Value
                                                     ----                  -----            ------              -----
<S>                                              <C>                  <C>             <C>                <C>
Securities available for sale:
 December 31, 1999:
   U.S. Treasury                                 $  8,027,823         $   13,050      $   (38,842)       $  8,002,031
   U.S. governmental agency                        25,385,598              8,434         (606,608)         24,787,424
   States and political subdivisions               36,537,652            247,607         (487,236)         36,298,023
   Collateralized mortgage obligations              2,186,369              1,619          (13,100)          2,174,888
   Corporate                                       16,827,876              1,512         (133,776)         16,695,612
   Equity                                           2,308,239                  0                0           2,308,239
                                                  -----------          ---------       ----------         -----------
                                                 $ 91,273,557         $  272,222      $(1,279,562)       $ 90,266,217
                                                   ==========          =========       ==========         ===========
 December 31, 1998:
   U.S. Treasury                                 $  9,028,443         $  221,401      $       (51)       $  9,249,793
   U.S. governmental agency                        22,770,082            222,608          (60,658)         22,932,032
   States and political subdivisions               40,016,678          1,214,073         (134,582)         41,096,169
   Collateralized mortgage obligations              3,583,726             30,603             (529)          3,613,800
   Corporate                                       22,824,634            226,073          (46,819)         23,003,888
   Equity                                           1,815,341                  0                0           1,815,341
                                                  -----------          ---------       ----------         -----------
                                                 $100,038,904         $1,914,758      $(  242,639)       $101,711,023
                                                  ===========          =========       ==========         ===========
</TABLE>

Gross realized gains (losses) on sales and calls of securities were:
<TABLE>
                                                    1999             1998              1997
                                                    ----             ----              ----
                 <S>                              <C>              <C>               <C>
                 Gross realized gains             $ 38,373         $  4,858          $  1,050
                 Gross realized losses             (39,758)         ( 1,529)          (30,782)
                                                    ------           ------            ------
                 Net realized gains               $( 1,385)        $  3,329          $(29,732)
                                                    ======          =======            ======
</TABLE>

The amortized  cost and fair value of securities at December 31, 1999, by stated
maturity are shown below.  Actual  maturities may differ from stated  maturities
because  borrowers  may have the  right to call or  prepay  obligations  with or
without call or prepayment penalties.
<TABLE>
                                                             Securities Available for Sale
                                                             -----------------------------
                                                          Amortized                  Fair
                                                             Cost                    Value
                                                             ----                    -----
<S>                                                       <C>                     <C>
Due in one year or less                                   $19,535,614             $19,573,244
Due after one year through five years                      40,109,099              39,726,547
Due after five years through ten years                     21,108,184              20,544,434
Due after ten years                                         8,212,421               8,113,753
                                                          -----------             -----------
     Total                                                 88,965,318              87,957,978
Equity securities                                           2,308,239               2,308,239
                                                          -----------             -----------
     Total securities                                     $91,273,557             $90,266,217
                                                           ==========              ==========
</TABLE>

At December 31, 1999, securities with a carrying value approximating $59,108,000
were  pledged  to  secure  public  and trust  deposits,  securities  sold  under
agreements to  repurchase,  and for such other purposes as required or permitted
by law.
<PAGE>
NOTE E--SECONDARY MORTGAGE MARKET ACTIVITIES

Loans serviced for others,  which are not reported as assets, total $233,660,000
and $215,308,000 at 1999 and 1998.

Activity for capitalized mortgage servicing rights was as follows:
<TABLE>
                                                                         1999                      1998
                                                                         ----                      ----
<S>                                                               <C>                        <C>
Servicing rights:
     Beginning of year                                            $   997,226                 $ 503,370
     Additions                                                        598,983                   969,416
     Amortized to expense                                            (372,012)                 (475,560)
                                                                   ----------                  --------
     End of year                                                   $1,224,197                 $ 997,226
                                                                    =========                  ========
</TABLE>
Management  has  determined  that a  valuation  allowance  is not  necessary  at
December 31, 1999 or 1998.


NOTE F-LOANS

Loans at year-end were as follows:
<TABLE>
                                                                        1999                      1998
                                                                        ----                      ----
     <S>                                                            <C>                       <C>
     Commercial                                                     $132,640,574              $117,351,858
     Mortgage loans on real estate:
         Residential                                                 205,593,791               173,420,825
         Loans held for sale                                           1,117,160                 5,454,928
         Commercial                                                  131,323,729               109,412,665
         Construction                                                 25,918,504                23,415,773
     Consumer                                                         72,976,468                70,136,552
     Credit Card                                                       6,919,651                 6,519,740
                                                                    ------------             -------------
              Subtotal                                               576,489,877               505,712,341
     Less:
         Allowance for loan losses                                     9,317,000                 9,048,000
         Net deferred loan fees                                           52,276                     9,764
         Undisbursed loan funds                                       68,199,183                64,674,655
                                                                    ------------              ------------
     Loans, net                                                     $498,921,418              $431,979,922
                                                                     ===========               ===========
</TABLE>
Activity in the allowance for loan losses for the year was as follows:
<TABLE>
                                                                         1999                  1998                 1997
                                                                         ----                  ----                 ----
     <S>                                                              <C>                   <C>                  <C>
     Beginning balance                                                $9,048,000            $8,114,000           $6,247,000
     Lakeview allowance at acquisition                                                                            1,326,000
     Provision for loan losses                                           514,000             1,177,000            1,398,000
     Loans charged-off                                                  (799,000)             (712,000)          (1,270,000)
     Recoveries                                                          554,000               469,000              413,000
                                                                       ---------            ----------           ----------
     Ending balance                                                   $9,317,000            $9,048,000           $8,114,000
                                                                       =========             =========            =========
</TABLE>
Impaired loans were as follows:
<TABLE>
                                                                                   1999                      1998
                                                                                   ----                      ----
     <S>                                                                        <C>                      <C>
     Year-end loans with no allocated allowance for loan losses                 $   534,000              $   504,000
     Year-end loans with allocated allowance for loan losses                      4,139,000                1,102,000
                                                                                  ---------                ---------
     Total                                                                       $4,673,000               $1,606,000
                                                                                  =========                =========
</TABLE>
<TABLE>
                                                                              1999                  1998                  1997
                                                                              ----                  ----                  ----
     <S>                                                                  <C>                  <C>                 <C>
     Amount of the allowance for loan losses allocated                    $   329,000          $   118,000         $    48,000

     Loans past due over 90 days still on accrual                         $   663,000          $   621,000         $ 1,215,158
     Average of impaired loans during the year                            $ 5,133,000          $ 1,879,000         $   972,000
     Interest income recognized during impairment                         $   284,000          $   128,000         $    87,000
     Cash-basis interest income recognized                                $   112,000          $    31,000         $         0
</TABLE>
Approximately  $57,300,000  of  commercial  loans were  pledged  to the  Federal
Reserve Bank of Chicago at December 31, 1999, to secure overnight borrowings.
<PAGE>
NOTE G--PREMISES AND EQUIPMENT

Year end premises and equipment were as follows:
<TABLE>
                                                                  1999                    1998
                                                                  ----                    ----
     <S>                                                     <C>                     <C>
     Land                                                    $  3,230,319            $  3,174,570
     Buildings                                                 12,306,250              11,594,443
     Furniture, fixtures and equipment                          9,194,568               8,206,337
                                                              -----------             -----------
                                                               24,731,137              22,975,350
     Less:  Accumulated depreciation                           (9,802,710)             (8,917,731)
                                                              -----------             -----------
                                                              $14,928,427             $14,057,619
                                                               ==========              ==========
</TABLE>
Rent expense for 1999 was $105,620 and for 1998 was $115,801.  Rent  commitments
under  noncancellable  operating  leases  were as  follows,  before  considering
renewal options that generally are present.
<TABLE>
                          <S>                           <C>
                          2000                          $104,306
                          2001                           102,365
                          2002                           105,706
                          2003                           107,234
                          2004                            96,064
                                                        --------
                                  Total                 $515,675
                                                        ========
</TABLE>

NOTE H--FEDERAL INCOME TAXES

Federal income taxes consist of the following:
<TABLE>
                                                            1999                    1998                    1997
                                                            ----                    ----                    ----
           <S>                                          <C>                    <C>                       <C>
           Current expense                              $3,835,000             $3,473,000                $2,536,000
           Deferred benefit                               (305,000)              (356,000)                 (285,000)
                                                         ---------              ---------                 ---------
              Total                                     $3,530,000             $3,117,000                $2,251,000
                                                         =========              =========                 =========
</TABLE>
A  reconciliation  of the difference  between federal income tax expense and the
amount computed by applying the federal statutory tax rate of 34% is as follows:
<TABLE>
                                                            1999                   1998                      1997
                                                            ----                   ----                      ----
           <S>                                         <C>                    <C>                         <C>
           Tax at statutory rate                       $3,932,000             $ 3,543,000                 $2,655,000
           Effect of surtax exemption                      16,000                   4,000
           Effect of tax-exempt interest                 (544,000)               (550,000)                  (619,000)
           Other                                          126,000                 120,000                    215,000
                                                       ----------             -----------                  ---------
              Federal income taxes                     $3,530,000             $ 3,117,000                 $2,251,000
                                                        =========              ==========                  =========

              Effective tax rate                              31%                     30%                        29%
</TABLE>
The components of deferred tax assets and  liabilities  consist of the following
at December 31:
<TABLE>
Deferred tax assets:                                                          1999                        1998
                                                                              ----                        ----
<S>                                                                        <C>                         <C>
   Allowance for loan losses                                               $2,799,000                  $2,603,000
   Unrealized loss on securities available for sale                           342,000
   Deferred compensation                                                      951,000                     708,000
   Other                                                                      395,000                     588,000
                                                                           ----------                 -----------
      Total deferred tax assets                                             4,487,000                   3,899,000
                                                                            ---------                  ----------
Deferred tax liabilities:
   Fixed assets                                                            (1,417,000)                 (1,491,000)
   Unrealized gain on securities available for sale                                                      (569,000)
   Mortgage servicing rights                                                 (416,000)                   (380,000)
   Purchase accounting adjustment                                            (517,000)                   (559,000)
   Other                                                                      (94,000)                    (73,000)
                                                                           -----------                -----------
      Total deferred tax liabilities                                       (2,444,000)                 (3,072,000)
                                                                           ----------                  ----------
Net deferred tax asset                                                    $ 2,043,000                 $   827,000
                                                                           ==========                 ===========
</TABLE>
A  valuation  allowance  related to deferred  tax assets is required  when it is
considered more likely than not that all or part of the benefits related to such
assets will not be realized. Management has determined that no such allowance is
required at December 31, 1999 or 1998.
<PAGE>
Deferred tax assets at December 31, 1999 and 1998,  are included in other assets
in the accompanying consolidated balance sheets.

Federal  income tax laws  require  recapture  of the tax loan loss  reserve when
average  assets of the group exceed $500 million.  The  recapture  occurs over a
four year period in amounts  equal to 10%, 20%, 30% and 40% of the tax loan loss
reserve.  The total  amount  subject  to  recapture  is  $1,548,000  and will be
recaptured as follows: $155,000 in 1998; $310,000 in 1999; $464,000 in 2000; and
$619,000 in 2001.


NOTE I--DEPOSITS

Time deposits of $100,000 or more were  $41,996,000  and $39,798,000 at year-end
1999 and 1998.

Scheduled maturities of time deposits were as follows:
<TABLE>
                Year                            Amount
                ----                            ------
                <S>                             <C>
                2000                            $160,324,534
                2001                              26,066,891
                2002                              11,274,229
                2003                               6,646,585
                2004                               4,496,756
                2005 and after                        27,837
                                                ------------
                Total                           $208,836,832
</TABLE>

NOTE J--BORROWINGS

Information relating to securities sold under agreements to repurchase follows:
<TABLE>
At December 31:                                            1999                   1998                    1997
                                                           ----                   ----                    ----
<S>                                                     <C>                    <C>                     <C>
   Outstanding balance                                  $21,519,000            $18,678,000             $12,932,000
   Average interest rate                                   4.17%                  3.88%                   4.23%

Daily average for the year:
   Outstanding balance                                  $19,495,000            $15,618,000             $10,894,000
   Average interest rate                                   4.05%                  4.15%                   4.36%

Maximum outstanding at any month end                    $21,519,000            $18,678,000             $13,911,000
</TABLE>
Securities sold under agreements to repurchase (repurchase agreements) generally
have  original  maturities  of less than one  year.  Repurchase  agreements  are
treated as financings  and the  obligations  to repurchase  securities  sold are
reflected as liabilities.  Securities  involved with the agreements are recorded
as assets of the Company and are primarily held in safekeeping by  correspondent
banks.  Repurchase  agreements are offered  principally to certain large deposit
customers as deposit equivalent investments.

At year-end, advances from the Federal Home Loan Bank were as follows:
<TABLE>
                                                                                  1999                      1998
                                                                                  ----                      ----
     <S>                                                                        <C>                      <C>
     Maturities January 2000 through October 2017 primarily
          fixed rate at rates from 4.64% to 7.30% averaging 5.73%               $38,185,266              $14,103,412
</TABLE>
Each  Federal Home Loan Bank  advance is payable at its  maturity  date,  with a
prepayment penalty. The advances were collateralized by at least $61,096,000 and
$22,565,000 of first mortgage loans under a blanket lien arrangement at year-end
1999 and 1998.
<TABLE>
Maturities over the next five years are:

                                  <S>             <C>
                                  2000            $ 27,470,000
                                  2001                 250,000
                                  2002                       0
                                  2003               7,000,000
                                  2004                       0
                        2005 and after               3,465,266
                                                   -----------
                                                   $38,185,266
                                                   ===========
</TABLE>
<PAGE>
NOTE K--BENEFIT PLANS

The  Company  established  an Employee  Stock  Ownership  Plan (ESOP)  effective
January 1, 1988, covering  substantially all employees.  The ESOP is a qualified
stock  bonus plan,  a  qualified  401(k)  salary  deferral  plan and a qualified
employee stock ownership plan. Both employee and employer  contributions  may be
made  to  the  ESOP.  The  Company's  1999,   1998,  and  1997  matching  401(k)
contributions  charged  to  expense  were  $275,796,   $264,441,   and  $204,165
respectively.  The percent of the Company's matching contributions to the 401(k)
is determined annually by the Board of Directors.

The Board of Directors established the Firstbank Corporation Affiliated Deferred
Compensation  Plan (Plan).  Directors of the holding  company and each affiliate
bank are eligible to participate in the Plan. In addition, key management of the
holding company and affiliate banks as designated by the Board of Directors, are
eligible  to  participate.  The Plan is a  nonqualified  plan as  defined by the
Internal Revenue Code. As such, all  contributions are invested at the direction
of the  participant  and are assets of the  Company.  The Company  recognizes  a
corresponding liability to each participant.  The Plan allows Directors to defer
their director fees and key management to defer a portion of their salaries into
the Plan.


NOTE L--STOCK OPTIONS

The Firstbank  Corporation Stock Option Plans of 1993 and 1997 ("Plans") provide
for the grant of 281,420 and 231,525  shares of stock,  respectively,  in either
restricted form or under option.  Options may be either  incentive stock options
or nonqualified  stock options.  The Plan of 1993 will terminate April 26, 2003.
The 1997 Plan will terminate April 28, 2007. The Board,  at its discretion,  may
terminate either or both Plans prior to the Plans' termination dates.

Each option  granted under the Plans may be exercised in whole or in part during
such period as is  specified  in the option  agreement  governing  that  option.
Options are issued with  exercise  prices  equal to the stock's  market value at
date of issuance. A nonqualified stock option may not be exercised after fifteen
years from the grant date.  Incentive  stock options may not be exercised  after
ten years from the grant date.

The following is a summary of option  transactions  which occurred  during 1997,
1998 and 1999:
<TABLE>
                                                                         Number                Weighted
                                                                       of Shares                Average
                                                                       ---------                -------
<S>                                                                     <C>                    <C>
Outstanding  - December 31, 1996                                        219,904                $10.38
Granted                                                                  92,379                 19.76
Granted pursuant to acquisition                                          47,301                  9.71
Exercised                                                               (12,847)                 8.44
Canceled                                                                 (4,968)                12.70
                                                                       --------
Outstanding  - December 31, 1997                                        341,769                 12.92
Granted                                                                  94,099                 29.03
Exercised                                                               (15,115)                10.76
Canceled                                                                (10,945)                15.78
                                                                       --------
Outstanding - December 31, 1998                                         409,808                 16.58
Granted                                                                  43,365                 21.67
Exercised                                                               (52,750)                10.29
Canceled                                                                (12,303)                20.90
                                                                       --------
Outstanding - December 31, 1999                                         388,120                 17.86
Available for exercise -- December 31, 1999                             177,067                 14.92
Available for grant -- December 31, 1999                                 38,966
</TABLE>
<PAGE>
Financial  Accounting Standards No. 123, Accounting for Stock Based Compensation
(SFAS 123)  establishes  a fair value based  method of  accounting  for employee
stock options.  Accordingly,  the following pro forma  information  presents net
income and earnings per share  information  as if SFAS 123 had been adopted.  No
compensation  cost was actually  recognized for stock options in 1999,  1998, or
1997.
<TABLE>
                                                              1999                 1998                1997
                                                              ----                 ----                ----
    <S>                                                    <C>                  <C>                 <C>
    Net income as reported                                 $8,036,033           $7,302,570          $5,557,731
       Pro forma net income                                $7,922,573           $7,222,719          $5,507,459

    Basic earnings per share as reported                      $1.70                $1.54               $1.34
       Pro forma basic earnings per share                     $1.68                $1.52               $1.32

    Diluted earnings per share as reported                    $1.66                $1.48               $1.30
       Pro forma diluted earnings per share                   $1.64                $1.47               $1.29
</TABLE>
In future  years,  the pro forma  effect  under this  standard  is  expected  to
increase as additional options are granted.

The fair value of options granted during 1999, 1998, and 1997 is estimated using
the Black-Scholes  model and the following  weighted average  information:  risk
free interest rate of 6.28%, 5.06% and 5.86%; expected life of 7 years; expected
volatility of stock price of 36.2%,  33.9% and 27.4%; and expected  dividends of
3% per year. The fair value of the options granted in 1999, 1998, and 1997, were
$235,000,  $207,000  and  $227,000  respectively.  For  options  outstanding  at
December 31,  1999,  the range of exercise  prices was $7.73 to $29.03,  and the
weighted average remaining contractual life was 12.4 years.


NOTE M--RELATED PARTY TRANSACTIONS

Loans to principal  officers,  directors,  and their  affiliates in 1999 were as
follows:
<TABLE>
              <S>                                                            <C>
              Beginning balance                                              $ 14,833,310
              New loans                                                        26,286,835
              Effect of changes in related parties                               (314,356)
              Repayments                                                      (20,122,206)
                                                                               ----------
              Ending balance                                                 $ 20,683,583
                                                                              ===========
</TABLE>
Deposits from principal  officers,  directors,  and their affiliates at year end
1999 and 1998 were $8,217,000 and $7,772,000.

Directors  have  deferred  some of their  fees  for  future  payment,  including
interest.  Amounts deferred are expensed,  and were $62,600 and $62,400 for 1999
and 1998.


NOTE N--FINANCIAL INSTRUMENTS WITH OFF-BALANCE SHEET RISK

Some financial instruments,  such as loan commitments,  credit lines, letters of
credit, and overdraft  protection,  are issued to meet customer financing needs.
These are  agreements to provide  credit or to support the credit of others,  as
long as  conditions  established  in the  contract  are met,  and  usually  have
expiration  dates.  Commitments may expire without being used. Off balance sheet
risk to credit loss exists up to the face amount of these instruments,  although
material losses are not  anticipated.  The same credit policies are used to make
such  commitments  as are used for  loans,  including  obtaining  collateral  at
exercise of the commitment.

Financial instruments with off-balance-sheet risk were as follows at year end:
<TABLE>
                                                      1999                               1998
                                                      ----                               ----
                                            Fixed Rate    Variable Rate        Fixed Rate     Variable Rate
    <S>                                     <C>             <C>                <C>              <C>
    Commitments to make loans
       (at market rates)                    $5,410,972       $3,763,841        $6,970,298          $  0
    Unused lines of credit and
        letters of credit                   $9,026,298      $49,998,072        $4,534,424       $53,169,933
</TABLE>

Commitments to make loans are generally made for periods of 60 days or less. The
fixed rate loan  commitments  have interest rates ranging from 5.9% to 12.0% and
maturities ranging from 15 years to 30 years.
<PAGE>
NOTE O--CONTINGENCIES

From time to time  certain  claims are made  against the Company and its banking
subsidiaries in the normal course of business.  There were no outstanding claims
considered by management to be material at December 31, 1999.


NOTE P--DIVIDEND LIMITATION OF SUBSIDIARIES

The  subsidiary  banks are  restricted  in their ability to pay dividends to the
Company by regulatory requirements.  For 2000, approximately  $12,710,000 of the
subsidiaries'  retained  earnings  (in  addition  to their  2000 net  income) is
available  for  transfer  in the  form of  dividends  without  prior  regulatory
approval.


NOTE Q--CAPITAL ADEQUACY

The  Company  and  its  subsidiary  banks  are  subject  to  regulatory  capital
requirements  administered  by federal  regulatory  agencies.  Capital  adequacy
guidelines  and  prompt  corrective  action  regulations  involve   quantitative
measures of assets, liabilities,  and certain off balance sheet items calculated
under regulatory accounting  practices.  Capital amounts and classifications are
also subject to  qualitative  judgments by  regulators  about  components,  risk
weightings,  and other  factors.  The regulators  can lower  classifications  in
certain  cases.  Failure  to meet  various  capital  requirements  can  initiate
regulatory  action  that could have a direct  material  effect on the  financial
statements.

The prompt corrective action regulations provide five classifications, including
well  capitalized,  adequately  capitalized,   undercapitalized,   significantly
undercapitalized, and critically undercapitalized,  although these terms are not
used to  represent  overall  financial  condition.  If  adequately  capitalized,
regulatory   approval   is   required   to   accept   brokered   deposits.    If
undercapitalized,  capital  distributions  are  limited,  as is asset growth and
expansion, and plans for capital restoration are required. The capital ratios of
the  Company  and each of its  affiliate  banks  exceed the  requirements  to be
considered well capitalized. The minimum requirements are:
<TABLE>
                                                 Capital to risk-weighted assets                  Tier 1 capital
                                                 Total                     Tier 1            to adjusted total assets
                                                 -----                     ------            ------------------------
           <S>                                    <C>                       <C>                      <C>
           Well capitalized                       10%                       6%                       5%
           Adequately capitalized                 8%                        4%                       4%
           Undercapitalized                       6%                        3%                       3%
</TABLE>
At December 31, 1999, actual capital levels were:
<TABLE>
                                                Total                   Tier 1                  Tier 1
                                              Risk-Based               Risk-Based              Leverage
                                             Capital Ratio            Capital Ratio             Ratio
                                             -------------            -------------             -----
<S>                                          <C>                      <C>                      <C>
Firstbank Corporation -- Consolidated         12.24%                    10.98%                   8.49%
Bank of Alma                                  12.63%                    11.37%                   8.72%
Firstbank                                     10.29%                     9.04%                   7.96%
1st Bank                                      11.23%                     9.97%                   7.47%
Lakeview                                      15.17%                    13.92%                   9.98%
</TABLE>
The following  tables show the dollar  amounts,  in thousands,  of the Company's
capital and the amounts that exceed current regulatory requirements:
<TABLE>
                                                    Total                Tier 1
                                                  Risk-Based           Risk-Based           Tier 1
                                                   Capital              Capital            Leverage
                                                  ----------           ----------         ---------
<S>                                               <C>                  <C>                <C>
Actual Capital balances at December 31, 1999
Firstbank Corporation -- Consolidated             $58,780              $52,735            $52,735
     Bank of Alma                                  20,428               18,383             18,383
     Firstbank                                     11,431               10,042             10,042
     1st Bank                                      14,328               12,720             12,720
     Lakeview                                      12,031               11,037             11,037
</TABLE>
<PAGE>
<TABLE>
                                              Total              Tier 1
                                            Risk-Based         Risk-Based          Tier 1
                                             Capital             Capital           Leverage
                                            ----------         ----------          --------
<S>                                         <C>                <C>                <C>
Adequate regulatory capital level
Firstbank Corporation -- Consolidated       $38,427            $19,213            $24,844
     Bank of Alma                            12,937              6,468              8,436
     Firstbank                                8,885              4,442              5,046
     1st Bank                                10,205              5,102              6,808
     Lakeview                                 6,344              3,172              4,421

Well capitalized regulatory capital level
Firstbank Corporation -- Consolidated       $48,034            $28,820            $31,056
     Bank of Alma                            16,171              9,703             10,545
     Firstbank                               11,106              6,664              6,307
     1st Bank                                12,756              7,653              8,510
     Lakeview                                 7,930              4,758              5,527
</TABLE>
At December 31, 1998, actual capital levels were:
<TABLE>
                                            Total               Tier 1              Tier 1
                                          Risk-Based          Risk-Based           Leverage
                                         Capital Ratio       Capital Ratio          Ratio
                                         -------------       -------------         --------
<S>                                          <C>                 <C>                 <C>
Firstbank Corporation -- Consolidated        12.47%              11.21%               8.33%
     Bank of Alma                            11.35%              10.09%               7.94%
     Firstbank                               11.91%              10.66%               8.75%
     1st Bank                                11.96%              10.69%               7.31%
     Lakeview                                15.09%              13.83%              10.01%
</TABLE>
The following  tables show the dollar  amounts,  in thousands,  of the Company's
capital and the amounts that exceed current regulatory requirements:
<TABLE>
                                                          Total                      Tier 1
                                                        Risk-Based                 Risk-Based                  Tier 1
                                                          Capital                    Capital                  Leverage
<S>                                          <C>                  <C>
Actual Capital balances at December 31, 1998
Firstbank Corporation -- Consolidated        $54,534              $49,025            $49,025
     Bank of Alma                             18,936               16,832             16,832
     Firstbank                                10,614                9,498              9,498
     1st Bank                                 12,875               11,512             11,512
     Lakeview                                 11,171               10,240             10,240

Adequate regulatory capital level
Firstbank Corporation -- Consolidated        $34,975              $17,487            $23,534
     Bank of Alma                             13,341                6,670              8,483
     Firstbank                                 7,128                3,564              4,342
     1st Bank                                  8,611                4,305              6,303
     Lakeview                                  5,922                2,961              4,091

Well capitalized regulatory capital level
Firstbank Corporation -- Consolidated        $43,719              $26,232             $29,418
     Bank of Alma                             16,677               10,006              10,604
     Firstbank                                 8,910                5,346               5,428
     1st Bank                                 10,764                6,459               7,879
     Lakeview                                  7,403                4,442               5,114
</TABLE>
<PAGE>
NOTE R--FAIR VALUE OF FINANCIAL INSTRUMENTS

Carrying  amount and  estimated  fair values of  financial  instruments  were as
follows at year-end:
<TABLE>
                                                                        1999                                     1998
                                                                        ----                                     ----
                                                          Carrying                                Carrying
(Dollars in thousands)                                   or Notional          Fair               or Notional          Fair
                                                           Amount             Value                Amount             Value
                                                           ------             -----                ------             -----
<S>                                                     <C>                <C>                   <C>                <C>
Financial assets:
     Cash and cash equivalents                          $   25,197         $    25,197           $   35,492         $   35,492
     Securities available for sale                          90,266              90,266              101,711            101,711
     Loans, net                                            498,922             489,801              431,980            438,963
     Accrued interest receivable                             3,489               3,489                3,464              3,464
Financial liabilities:
     Deposits                                            $(491,404)          $(490,272)           $(494,053)         $(494,685)
     Securities sold under agreements to repurchase
        and overnight borrowings                           (51,819)            (51,560)             (26,578)           (26,996)
     Notes payable                                         (38,384)            (38,053)             (14,317)           (15,049)
     Accrued interest payable                               (1,225)             (1,225)              (1,311)            (1,311)
Off-balance sheet credit-related items:
     Loan commitments                                    $  68,199              ----             $   64,675             ----
</TABLE>
The  methods  and  assumptions  used to  estimate  fair value are  described  as
follows.

Carrying amount is the estimated fair value for cash and cash equivalents, short
term borrowings,  Federal Home Loan Bank stock,  accrued interest receivable and
payable,  demand deposits,  short term debt, and variable rate loans or deposits
that  reprice  frequently  and fully.  Security  fair values are based on market
prices or dealer quotes,  and if no such  information is available,  on the rate
and term of the security and information about the issuer.  For fixed rate loans
or deposits and for variable rate loans or deposits with infrequent repricing or
repricing  limits,  fair value is based on  discounted  cash flows using current
market rates  applied to the  estimated  life and credit  risk.  Fair values for
impaired loans are estimated  using  discounted cash flow analysis or underlying
collateral values.  Fair value of loans held for sale is based on market quotes.
Fair value of debt is based on current  rates for  similar  financing.  The fair
value of off balance sheet items is based on the current fees or cost that would
be charged to enter into or terminate such arrangements.


NOTE S-BASIC AND DILUTED EARNINGS PER SHARE
<TABLE>
                                                                                      Year Ended December 31
                                                                        1999                  1998                  1997
                                                                        ----                  ----                  ----
<S>                                                                   <C>                  <C>                   <C>
Earnings per share
     Net income                                                       $8,036,033           $7,302,570            $5,557,731

     Weighted average common shares outstanding                        4,723,081            4,745,845             4,155,724
                                                                       =========            =========             =========

         Earnings per share                                                $1.70                $1.54                 $1.34
                                                                            ====                 ----                  ====
Earnings per share assuming dilution
     Net income                                                       $8,036,033           $7,302,570            $5,557,731
                                                                       =========            =========             =========

     Weighted average common shares outstanding                        4,723,081            4,745,845             4,155,724

     Add dilutive effects of assumed exercises of options                116,135              181,001               114,942
                                                                      ----------           ----------            ----------
     Weighted average common and dilutive potential
         common shares outstanding                                     4,839,216            4,926,846             4,270,666
                                                                       =========            =========             =========
Earnings per share
     Assuming dilution                                                     $1.66                $1.48                 $1.30
                                                                            ====                 ====                  ====
</TABLE>
Stock options for 89,468 and 92,436  shares of common stock were not  considered
in  computing  diluted  earnings  per share for 1999 and 1997  because they were
antidulitive.
<PAGE>
NOTE T--FIRSTBANK CORPORATION (PARENT COMPANY ONLY)
CONDENSED FINANCIAL INFORMATION

CONDENSED BALANCE SHEETS
<TABLE>
                                                                                                   December 31
                                                                                        1999                      1998
                                                                                        ----                      ----
     <S>                                                                             <C>                        <C>
     ASSETS
         Cash and cash equivalents                                                   $    364,520               $ 1,262,996
         Securities available for sale                                                     17,247                    15,349
         Investment in and advances to banking subsidiaries                            55,635,013                53,673,418
         Other assets                                                                   7,940,804                 7,433,588
                                                                                      -----------               -----------
         Total assets                                                                 $63,957,584               $62,385,351
                                                                                       ==========                ==========
     LIABILITIES AND EQUITY
         Accrued expenses and other liabilities                                      $  2,925,534               $ 2,610,407
         Shareholders' equity                                                          61,032,050                59,774,944
                                                                                       ----------                ----------
         Total liabilities and shareholders' equity                                   $63,957,584               $62,385,351
                                                                                       ==========                ==========
</TABLE>
CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME
<TABLE>
Years ended December 31                                                       1999                  1998                 1997
                                                                              ----                  ----                 ----
     <S>                                                                   <C>                   <C>                 <C>
     Dividends from banking subsidiaries                                   $4,890,000            $3,138,000          $1,638,000
     Other income                                                             330,264               191,428              67,223
     Other expense                                                         (1,052,615)             (862,439)           (497,248)
                                                                            ---------             ---------           ---------
     Income before income tax and  undistributed subsidiary income          4,167,649             2,466,989           1,207,975
     Income tax benefit                                                       139,000               121,000              83,612
     Equity in undistributed subsidiary income                              3,729,384             4,714,581           4,266,144
                                                                            ---------             ---------          ----------
     Net income                                                             8,036,033             7,302,570           5,557,731
     Change in unrealized gain(loss) on securities,
         net of tax and classification effects                             (1,767,785)              216,541             323,720
                                                                            ---------             ---------           ---------
     Comprehensive income                                                  $6,268,248            $7,519,111          $5,881,451
                                                                            ---------             =========           =========
</TABLE>
CONDENSED STATEMENTS OF CASH FLOWS
<TABLE>
Years ended December 31                                                      1999                  1998                 1997
                                                                             ----                  ----                 ----
     <S>                                                                   <C>                   <C>                 <C>
     Cash flows from operating activities
         Net income                                                        $8,036,033            $7,302,570          $5,557,731
         Adjustments:
              Equity in undistributed subsidiary income                    (3,729,384)           (4,714,581)         (4,266,144)
              Change in other assets                                         (507,216)             (509,086)           (675,823)
              Change in other liabilities                                     315,127               868,030           1,068,773
                                                                          -----------           -----------           ---------
                  Net cash from operating activities                        4,114,560             2,946,933           1,684,537
     Cash flows from investing activities
              Purchases of securities available for sale                       (1,898)               (7,101)
                                                                         ------------          ------------
              Net cash from investing activities                               (1,898)               (7,101)
     Cash flows from financing activities
         Cash used for acquisition                                                                                     (680,774)
         Proceeds from stock issuance                                       2,656,106             1,433,182           1,045,896
         Purchase of common stock                                          (4,792,687)           (1,213,670)
         Dividends paid and cash paid in lieu of
              fractional shares on stock dividend                          (2,874,557)           (2,495,573)         (1,872,649)
                                                                            ---------             ---------           ---------
              Net cash from financing activities                           (5,011,138)           (2,276,061)         (1,507,527)
                                                                            ---------             ---------           ---------
     Net change in cash and cash equivalents                                 (898,476)              663,771             177,010
     Beginning cash and cash equivalents                                    1,262,996               599,225             422,215
                                                                          -----------           -----------         -----------
     Ending cash and cash equivalents                                   $     364,520           $ 1,262,996        $    599,225
                                                                         ============            ==========         ===========
</TABLE>
<PAGE>
NOTE U--OTHER COMPREHENSIVE INCOME

Other comprehensive income components and related taxes were as follows:
<TABLE>
                                                                                        1999            1998            1997
                                                                                        ----            ----            ----
<S>                                                                                 <C>              <C>              <C>
Unrealized holding gains and losses on available-for-sale securities                $(2,680,844)     $ 331,418        $460,754
Less reclassification adjustments for gains and losses later recognized in income        (1,385)         3,329         (29,732)
                                                                                    -----------      ---------        --------
Net unrealized gains and losses                                                      (2,679,459)       328,089         490,486
Tax effect                                                                              911,674       (111,548)       (166,766)
                                                                                    -----------       --------        --------

Other comprehensive income                                                          $(1,767,785)     $ 216,541        $323,720
                                                                                      =========       ========        ========
</TABLE>

NOTE V - SUBSEQUENT EVENTS

The Board of Directors  of the Company has approved the  formation of a new bank
subsidiary  in St. Johns,  Michigan.  The bank will be known as Firstbank -- St.
Johns,  and is expected to open during the second quarter of 2000.  Applications
to  regulatory  agencies  have been filed and a  President  and Chief  Executive
Officer has been named.  Negotiations are nearing conclusion for the purchase of
a facility to house the new bank.

On January 1, 2000,  John  McCormack  retired as President  and Chief  Executive
Officer and member of the Board of Directors of Firstbank Corporation. Thomas R.
Sullivan  has been  appointed  to fill these  vacancies.  Mr.  Sullivan has been
President,  Chief Executive Officer, and a director of Firstbank,  Mt. Pleasant,
since 1991. He served as Vice  President of the  Corporation  from 1991 to 1996,
and as Executive Vice President of the Corporation since 1996.
<PAGE>
FIRSTBANK CORPORATION

BOARD OF DIRECTORS                        OFFICERS

William E. Goggin, Chairman               John McCormack 1
Chairman, Bank of Alma                    President and Chief Executive Officer
Attorney, Goggin & Baker
                                          Thomas R. Sullivan
Duane A. Carr                             Executive Vice President and President
Attorney, Carr & Mullendore, PC            Elect

Edward B. Grant                           Mary D. Deci
Chairman, Firstbank                       Vice President, Secretary, Treasurer
Director, Public Broadcasting,             and Chief Financial Officer
 Central Michigan University
                                          Richard L. Jarvis
Charles W. Jennings                       Vice President
Attorney, Jennings & Ellias, PC
                                          Dale  A. Peters
John McCormack 1                          Vice President
President and Chief Executive
 Officer, Firstbank Corporation           Richard J. Schurtz 2
President, Chief Executive Officer        Vice President
 and Trust Officer, Bank Of Alma
                                          James E. Wheeler, II
Phillip G. Peasley                        Vice President
Operations Manager, Peasley's
 Hardware & Carpeting Inc. (Retail)

David D. Roslund, CPA
Administrator, Wilcox Health Care
 Center (Long-Term Care Facility)
Small Business Investor and Manager



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


FIRSTBANK CORPORATION
311 Woodworth Avenue                    Firstbank Corporation Operations Center
P. O. Box 1029                          308 Woodworth Avenue
Alma, Michigan  48801                   Alma, Michigan  48801

(517) 463-3131

                                                                1 Retired 1/1/00
                                                                2 Retired 1/7/00
<PAGE>
BANK OF ALMA

BOARD OF DIRECTORS                           OFFICERS

William E. Goggin, Chairman                  John McCormack 1
Chairman, Firstbank Corporation              President, Chief Executive Officer
Attorney, Goggin & Baker                      and Trust Officer

Bob M. Baker                                 James E. Wheeler, II
President and CEO, Gratiot                   Executive Vice President,
 Community Hospital                           Loan Officer, and President Elect

Sally M. (Peggy) Bever 2                     Mary D. Deci
Business Manager                             Executive Vice President,
                                              Controller, Cashier and Chief
Sandra S. Brooks                              Financial Officer
Chief Operating Officer, Powell
 Fabrication & Manufacturing                 Timothy P. Clark
                                             Vice President and Senior Trust
Donald W. Crumbaugh                           Officer
Agriculture
                                             Steven E. Canole
Paul C. Lux                                  Vice President
Owner, Lux Funeral Homes, Inc.
                                             Gregory A. Daniels
John McCormack                               Vice President
Retired
Former President and Chief                   Marita A. Harkness
 Executive Officer, Firstbank                Vice President
 Corporation
Former President, Chief Executive            Gerald E. Kench
 Officer and Trust Officer, Bank             Vice President
 of Alma
                                             Timothy M. Lowe
Phillip G. Peasley                           Vice President
Operations Manager, Peasley's
 Hardware & Carpeting Inc.

David D. Roslund, CPA
Administrator, Wilcox Health Care
 Center
Small Business Investor and Manager

Victor V. Rozas, M.D.
Physician

Alan J. Stone
President, Alma College

<TABLE>
- ---------------------------------------------------------------------------------------------------------
OFFICE LOCATIONS
<S>                     <C>                        <C>                          <C>
Alma                    Ashley                     Merrill                      St. Louis
  7455 N. Alger Rd.       114 S. Sterling St.        125 W. Saginaw St.           135 W. Washington Ave.
  (517) 463-3134          (517) 847-2394             (517) 643-7253               (517) 681-5758

  230 Woodworth Ave.    Auburn                     Riverdale                    Vestaburg
  (517) 463-3131          4710 S. Garfield Rd.       6716 N. Lumberjack Rd.       8846 Third St.
                          (517) 662-4459             (517) 833-7331               (517) 268-5445
  311 Woodworth Ave.
  (517) 463-3131        Ithaca                     St. Charles
                          219 E. Center St.          102 Pine St.
                          (517) 875-4107             (517) 865-9918
</TABLE>
                                                                1 Retired 1/1/00
                                                                2 Deceased
<PAGE>
FIRSTBANK

BOARD OF DIRECTORS                         OFFICERS

Edward B. Grant, Chairman                  Thomas R. Sullivan
Director, Public Broadcasting,             President and Chief Executive Officer
 Central Michigan University
                                           Richard L. Jarvis
Ralph E. Baumgarth                         Executive Vice President
Dentist
                                           Mark B. Perry
Ralph M. Berry                             Senior Vice President
Owner, Berry Funeral Home
                                           James M. Taylor
Kenneth C. Bovee, CPM                      Senior Vice President
Partner, Keystone Property
 Management, Inc.                          Robert L. Wheeler
                                           Senior Vice President
Glen D. Blystone
Certified Public Accountant,               Daniel J. Timmins
Blystone & Bailey, CPAs, PC                Vice President

Sibyl M. Ellis
President, Someplace Special, Inc.

Keith A. Gaede
Pharmacist, Punches Pharmacy

Douglas N. LaBelle
Partner, LaBelle Management

William M. McClintic
Attorney, W.M. McClintic, P.C.

John McCormack 1
President & CEO, Firstbank Corporation
President & CEO, Bank of Alma

Phillip R. Seybert
President, P.S. Equities, Inc.

Thomas R. Sullivan
President and Chief Executive Officer,
 Firstbank
Executive Vice President and President
 Elect, Firstbank Corporation

Arlene A. Yost
Secretary and Treasurer, Jay's Sporting
 Goods, Inc.

- --------------------------------------------------------------------------------
OFFICE LOCATIONS
<TABLE>
<S>                           <C>                       <C>                       <C>
Mt. Pleasant                  Mt. Pleasant              Mt. Pleasant              Mt. Pleasant
     102 S. Main St.            4699 E. Pickard St.       2013 S. Mission St.       1925 E. Remus Rd.
     (517) 773-2600             (517) 773-2335            (517) 773-3959            (517) 775-8528

Clare                         Shepherd                  Winn
      806 N. McEwan Ave.        258 W. Wright Ave.        2783 Blanchard Rd.
      (517) 386-7313            (517) 828-6625            (517) 866-2210
</TABLE>
                                                                1 Retired 1/1/00
<PAGE>
1st BANK

BOARD OF DIRECTORS                         OFFICERS

Dale A. Peters, Chairman                   Dale A. Peters
President and Chief Executive              President and Chief Executive Officer
 Officer, 1st Bank
Vice President, Firstbank Corporation      Daniel H. Grenier
                                           Senior Vice President
Bryon A. Bernard
CEO, Bernard Building Center               Michael F. Ehinger
                                           Vice President
Joseph M. Clark
Owner, Morse Clark Furniture               Danny J. Gallagher
                                           Vice President
Timothy H. Eyth
Owner, West Branch Veterinary Services     Rosalind A. Heideman
                                           Vice President
David W. Fultz
Owner, Fultz Insurance Agency              Eileen S. McGregor
                                           Vice President
Robert T. Griffin
Owner and President, Griffin Beverage      Richard L. Pfahl
 Company,                                  Vice President
Northern Beverage Co., and West Branch
 Tank & Trailer                            W. John Powell
                                           Vice President
Charles W. Jennings
Attorney, Jennings & Ellias, PC            Larry M. Schneider
                                           Vice President
John McCormack 1
President & CEO, Firstbank Corporation     Marie A. Wilkins
President & CEO, Bank of Alma              Vice President

Norman J. Miller
Owner, Miller Farms, and Miller Dairy
 Equipment and Feed

Jeffrey C. Schubert
Dentist

Robert R. Smith                            SUBSIDIARIES
Insurance Consultant                       1st Armored, Incorporated
                                           1st Collections, Incorporated
Camila J. Steckling
Weinlander, Fitzhugh
Certified Public Accountants &
 Consultants


- --------------------------------------------------------------------------------
OFFICE LOCATIONS
<TABLE>
<S>                   <C>                        <C>                          <C>
West Branch           Fairview                   Hale                         St. Helen
  502 W. Houghton       1979 Miller                3281 M-65                    2040 N. St. Helen
  (517) 345-7900        (517) 848-2243             (517) 728-7566               (517) 389-1311

  601 W. Houghton     Roscommon                  Roscommon                    Rose City
  (517) 345-7900        Higgins Lake Branch        Loan Production Office       505 S. Bennett
                        4522 W. Higgins Lake       P.O. Box 401                 (517) 685-3909
  2087 S. M-76          Roscommon, MI              Roscommon, MI
  (517) 345-5050        (517) 821-9231             (517) 275-8970
</TABLE>
                                                                1 Retired 1/1/00
<PAGE>
BANK OF LAKEVIEW


BOARD OF DIRECTORS                           OFFICERS

V. Dean Floria, Chairman                  Richard J. Schurtz 2
Owner, Floria Parts Plus, Inc.            President and Chief Executive Officer

Duane A. Carr                             William L. Benear
Attorney, Carr & Mullendore               Executive Vice President and President
                                           Elect
John B. Crawford
Agriculture, Crawford Farms               David L. Miller
                                          Senior Vice President
Chalmer Gale Hixson
Owner, Country Corner Supermarket         Kim D. vonKronenberger
Owner, A Flair for Hair                   Vice President
Owner, Harry Chalmers, Inc.

John McCormack 1
President and Chief Executive Officer,
 Firstbank Corporation
President, Chief Executive Officer, &
 Trust Officer, Bank of Alma

Gerald L. Nielsen
Owner, Nielsen's TV & Appliances

Richard J. Schurtz 2
President and Chief Executive Officer,
 Bank of Lakeview
Vice President, Firstbank Corporation




- --------------------------------------------------------------------------------
OFFICE LOCATIONS
<TABLE>
<S>                          <C>                       <C>                                 <C>
Lakeview                     Canadian Lakes            Howard City                         Morley
  506 Lincoln Avenue           10049 Buchanan Road       20020 Howard City/Edmore Road       101 E 4th Street
  (517) 352-7271               Stanwood, MI              (231) 937-4383                      (231) 856-7652
                               (231) 972-4200
  9531 N Greenville Road                               Remus
  (517) 352-8180                                         201 W Wheatland Avenue
                                                         (517) 967-3602
</TABLE>

                                                                1 Retired 1/1/00
                                                                2 Retired 1/7/00
<PAGE>
BUSINESS OF THE COMPANY

Firstbank  Corporation (the "Company") is a bank holding company. As of December
31, 1999, the Company's wholly owned  subsidiaries are Bank of Alma,  Firstbank,
1st Bank,  Bank of Lakeview,  1st  Armored,  Incorporated,  and 1st  Collections
Incorporated. As of December 31, 1999, the Company and its subsidiaries employed
300 people on a full-time equivalent basis.

The Company is in the business of banking.  Each  subsidiary bank of the Company
is a full service  community  bank.  The  subsidiary  banks offer all  customary
banking  services,  including  the  acceptance  of  checking,  savings  and time
deposits,  and the making of commercial,  agricultural,  real estate,  personal,
home  improvement,  automobile and other installment and consumer loans. Bank of
Alma also offers  trust  services.  Deposits of each of the banks are insured by
the Federal Deposit Insurance Corporation.

The banks obtain most of their  deposits and loans from residents and businesses
in Bay, Clare, Gratiot, Iosco, Isabella,  Mecosta,  Midland,  Montcalm,  Ogemaw,
Oscoda,  Roscommon,  Saginaw and parts of Clinton  County.  Bank of Alma has its
main office and one branch in Alma, Michigan,  and one branch located in each of
the following areas: Ashley, Auburn, Ithaca,  Merrill, Pine River Township (near
Alma), Riverdale, St. Charles, St. Louis, and Vestaburg, Michigan. Firstbank has
its main  office  in Mt.  Pleasant,  Michigan,  two  branches  located  in Union
Township  (near Mt.  Pleasant),  and one branch located in each of the following
areas: Clare, Mt. Pleasant,  Shepherd, and Winn, Michigan. 1st Bank has its main
office in West Branch, Michigan, and one branch located in each of the following
areas:  Fairview,  Hale,  Higgins Lake,  Rose City,  St. Helen,  and West Branch
Township (near West Branch),  Michigan. Bank of Lakeview has its main office and
one  branch  in  Lakeview,  Michigan,  and  one  branch  located  in each of the
following areas:  Canadian Lakes, Howard City, Morley, and Remus. The banks have
no material foreign assets or income.

The  principal  sources of revenues  for the Company  and its  subsidiaries  are
interest and fees on loans. On a consolidated basis,  interest and fees on loans
accounted for  approximately 78% of total revenues in 1999, 76% in 1998, and 80%
in 1997.  Interest on investment  securities  accounted for approximately 10% of
total  revenues in 1999, 12% in 1998, and 11% in 1997. No other single source of
revenue  accounted for 10% of the Company's  total revenues in any of the last 3
years.

CORPORATE INFORMATION
Annual Meeting                                      Stock Information

The annual meeting of shareholders                  Firstbank Corporation shares
will be held on Monday, April 24, 2000,             are listed Over the Counter
5:00 p.m., at the Comfort Inn, Alma,                Bulleting Board under the
Michigan.                                           symbol FBMI.

                                                    First of Michigan
Independent Auditors                                Mike Young
Crowe Chizek and Company LLP                        1-800-521-1197
Grand Rapids, Michigan
                                                    McDonald Investments
General Counsel                                     Chris Turner
Varnum Riddering Schmidt & Howlett LLP              1-800-548-6011
Grand Rapids, Michigan
   - and -                                          Morgan Stanley Dean Witter
Warner Norcross & Judd LLP                          Ted Vogt
Grand Rapids, Michigan                              1-800-788-9640

Transfer Agent                                      Raymond James Financial
Bank of Alma Shareholder Services Department        Louis Parks
(517) 463-3131 extension 7336                       800-248-8863
Toll free shareholder hotline: (888) 637-0590
                                                    Robert W. Baird & Company
                                                    Bill L. Ockerlund
                                                    1-888-202-5048

                                                    Stifel, Nicolaus & Company,
                                                      Inc.
                                                    Pete VanDer Schaaf
                                                    1-800-676-0477

                                                    Tucker Anthony
                                                    Jack Korff
                                                    1-888-861-2200
<PAGE>
                                   EXHIBIT 21


                       FIRSTBANK CORPORATION SUBSIDIARIES


       Name                       State of Incorporation            Ownership
       ----                       ----------------------            ---------
Bank of Alma                            Michigan                      100%

Firstbank                               Michigan                      100%

Bank of Lakeview                        Michigan                      100%

1st Bank                                Michigan                      100%

1st Armored Incorporated                Michigan                100% by 1st Bank

1st Collections Incorporated            Michigan                100% by 1st Bank
<PAGE>
                                                                      EXHIBIT 23

                       CONSENT OF INDEPENDENT ACCOUNTANTS



We consent to the  incorporation by reference in the Registration  Statements of
Firstbank Corporation on Form S-8 (File Nos. 333-60190, 333-95427, 333-89771 and
333-53957)  and Form S-3 (File No.  333-15131)  of our report dated  February 4,
2000 on the 1999  consolidated  financial  statements of Firstbank  Corporation,
which  report is included in the 1999  Annual  Report on Form 10-K of  Firstbank
Corporation.




                                          Crowe, Chizek and Company LLP

Grand Rapids, Michigan
March 27, 2000
<PAGE>
                                   EXHIBIT 99
                        Firstbank Corporation 401(k) Plan
                                Performance Table
<TABLE>
                                                                  INITIAL
                                                                 INVESTMENT        VALUE        VALUE           VALUE
                                                                     ON            AS OF         AS OF          AS OF
FUND                                                             12/31/1996     12/31/1997     12/31/1998     12/31/1999
<S>                                                              <C>            <C>            <C>            <C>
Firstbank Corporation Common Stock                               $1,000.00      44.203%        26.495%        -31.288%
                                                                                $1,442.03      $1,824.10      $1,253.37

Federated Money Market for U.S. Treasury Obligations             $1,000.00      5.22%          5.11%          4.64%
                                                                                $1,052.20      $1,105.97      $1,157.28

Federated Capital Preservation Fund                              $1,000.00      5.86%          5.64%          5.57%
                                                                                $1,058.60      $1,118.31      $1,180.59

Vanguard Fixed Income Total Bond Fund                            $1,000.00      9.44%          8.60%          -.70%
                                                                                $1,094.40      $1,188.52      $1,180.20

Vanguard Fixed Income Long Term Corporate Bond Fund              $1,000.00      13.79%         9.20%          -6.23%
                                                                                $1,137.90      $1,242.59      $1,165.17

Federated Stock                                                  $1,000.00      34.42%         17.26%         6.08%
                                                                                $1,344.20      $1,576.21      $1,672.04

Vanguard Index 500 Fund                                          $1,000.00      33.21%         28.60%         21.07%
                                                                                $1,332.10      $1,713.08      $2,074.03

American Century 20th Century Ultra                              $1,000.00      23.13%         34.55%         41.46%
                                                                                1,231.30       $1,656.71      $2,343.59

Warburg Pincus
Emerging Growth Fund                                             $1,000.00      21.27%         5.82%          41.81%
                                                                                $1,212.70      $1,283.28      $1,819.82

T. Rowe Price International Stock Fund                           $1,000.00      2.70%          16.14%         34.60%
                                                                                $1,027.00      $1,192.76      $1,605.45

Vanguard International Growth Fund                               $1,000.00      4.12%          16.93%         26.30%
                                                                                $1,041.20      $1,217.48      $1,537.67

Fidelity Overseas Fund                                           $1,000.00      10.92%         12.84%         42.89%
                                                                                $1,109.20      $1,251.62      $1,788.44

American Century 20th Century Intl Discovery Fund                $1,000.00      17.48%         17.86%         88.54%
                                                                                $1,174.80      $1,384.62      $2,610.56
</TABLE>

<TABLE> <S> <C>


<ARTICLE>                                            9
<LEGEND>
This  schedule  contains  summary  financial   information  extracted  from  the
financial  statements  of Firstbank  Corporation  contained in its Form 10-K and
Annual Report to  Shareholders  for the period ended  December 31, 1999,  and is
qualified in its entirety by reference to such financial statements.
</LEGEND>

<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                              DEC-31-1999
<PERIOD-START>                                 JAN-01-1999
<PERIOD-END>                                   DEC-31-1999
<CASH>                                          24,786
<INT-BEARING-DEPOSITS>                             411
<FED-FUNDS-SOLD>                                    89
<TRADING-ASSETS>                                     0
<INVESTMENTS-HELD-FOR-SALE>                     90,266
<INVESTMENTS-CARRYING>                               0
<INVESTMENTS-MARKET>                                 0
<LOANS>                                        508,238
<ALLOWANCE>                                      9,317
<TOTAL-ASSETS>                                 650,552
<DEPOSITS>                                     491,404
<SHORT-TERM>                                    51,819
<LIABILITIES-OTHER>                              7,913
<LONG-TERM>                                     38,384
                                0
                                          0
<COMMON>                                        55,263
<OTHER-SE>                                       5,769
<TOTAL-LIABILITIES-AND-EQUITY>                 650,552
<INTEREST-LOAN>                                 40,451
<INTEREST-INVEST>                                5,348
<INTEREST-OTHER>                                   263
<INTEREST-TOTAL>                                46,062
<INTEREST-DEPOSIT>                              16,923
<INTEREST-EXPENSE>                              19,283
<INTEREST-INCOME-NET>                           26,779
<LOAN-LOSSES>                                      514
<SECURITIES-GAINS>                                  (1)
<EXPENSE-OTHER>                                 20,067
<INCOME-PRETAX>                                 11,566
<INCOME-PRE-EXTRAORDINARY>                      11,566
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     8,036
<EPS-BASIC>                                     1.70
<EPS-DILUTED>                                     1.66
<YIELD-ACTUAL>                                    8.21
<LOANS-NON>                                      2,240
<LOANS-PAST>                                       663
<LOANS-TROUBLED>                                    55
<LOANS-PROBLEM>                                  4,169
<ALLOWANCE-OPEN>                                 9,048
<CHARGE-OFFS>                                      799
<RECOVERIES>                                       554
<ALLOWANCE-CLOSE>                                9,317
<ALLOWANCE-DOMESTIC>                             7,404
<ALLOWANCE-FOREIGN>                                  0
<ALLOWANCE-UNALLOCATED>                          1,913



</TABLE>


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