EXHIBIT 10.4

                      CHEMICAL FINANCIAL CORPORATION
                    SUPPLEMENTAL RETIREMENT INCOME PLAN
                        Adopted May 20, 1985 and as
                       Amended August 15, 1988 and
                             December 21, 1992



1.   PURPOSE OF THE PLAN

     The purpose of the Chemical Financial Corporation Supplemental
     Retirement Income Plan (the "Plan") is threefold: (i) to reimburse a
     Corporate Officer of Chemical Financial Corporation (the "Company")
     for any reduction in his benefit payments under the Chemical Financial
     Corporation Employees' Pension Plan (the "Pension Plan") which may be
     caused by the limitations imposed thereon by Section 415 of the
     Internal Revenue Code (the "415 Limit" or Section 401(a)(17) of the
     Internal Revenue Code (the "401(a)(17) Limit"); (ii) to provide
     incentive and reward to such officer through additional retirement
     income in recognition of this meritorious service and material
     contribution to the Company's continued growth and development; and
     (iii) to assist the Company in retaining and attracting high caliber
     key executives upon whose efforts the future successful and profitable
     operation of its business is dependent.

2.   EFFECTIVE DATE

     This Plan was approved and adopted by the Board of Directors of
     Chemical Financial Corporation as of May 20, 1985 and amended as of
     August 15, 1988 and December 21, 1992.

3.   PARTICIPANTS IN THE PLAN

     The Plan is administered by a committee appointed by the Board of
     Directors consisting of not less than three members of the Board of
     Directors (the Compensation Committee).  The Plan empowers the
     Compensation Committee to grant such key employees of the Company and
     its Subsidiaries as shall be selected from time to time by the
     Committee, participation rights in the Plan.

4.   PENSION PLAN BENEFITS

     For purposes of this section, "Unrestricted Pension Benefit" means the
     amount which would have been payable from the Pension Plan if the 415
     Limit or 401(a)(17) Limit did not apply, calculated as of the
     participant's date of retirement based on the applicable optional



     payment method.  "Restricted Benefit Amount" means the amount actually
     payable from the Pension Plan calculated as of the participant's date
     of retirement based on the applicable optional payment method.

     Pension Plan benefits are only available to a participant who is
     employed by the Company immediately prior to his normal or early
     retirement from the Company under the terms of the Pension Plan.

     A participant who retires pursuant to the normal or early retirement
     provisions of the Pension Plan and elects benefits from the Pension
     Plan shall, subject to approval by the Committee, receive a monthly
     supplement from the Plan.  The supplement shall be equal to the
     difference between (i) the Unrestricted Pension Benefit and (ii) the
     Restricted Benefit Amount, both calculated according to the form of
     payment elected for his Pension Plan Benefits.  In the event the
     participant's death and payment election from causes a Pension Plan
     payment to a beneficiary, a portion of the supplement shall be paid to
     such beneficiary during the period of any related Pension Plan
     payment.  The portion of the supplement to be paid (if any) shall
     equal the portion of the participant's Pension Plan benefit which is
     continued for such beneficiary(ies).

     However, upon a Change in Control (as hereafter defined), each
     participant or his/her recognized survivor shall be paid the present
     value of the benefit accrued under the Supplemental Plan in the
     following manner:

     a.   If an active employee or former employee with a deferred benefit
          who is eligible to retire, the participant's benefit shall be
          calculated as if the participant terminated employment and then
          retired and elected to receive the 100% Joint Annuitant Option
          benefit as of the last day of the month immediately preceding the
          Change in Control.

     b.   If an employee or former employee who is not eligible to retire,
          the participant's benefit shall be calculated as if the
          participant terminated employment and then elected to receive the
          lump sum equivalent of a vested deferred benefit as of the last
          day of the month immediately preceding the Change in Control.

     All amounts shall be paid in a single lump sum within 90 days of the
     Change in Control unless the participant consents to another form of
     payment.

     For purposes of the Supplemental Plan, a Change in Control shall mean
     a change in control of a nature that would be required to be reported
     in response to Item 6(e) of Schedule 14A of Regulation 14A promulgated




     under the Securities Exchange Act of 1934, as amended (the "Exchange
     Act"), whether or not the Company is then subject to such reporting
     requirement; provided that, without limitation, a Change in Control
     shall be deemed to have occurred if:  (i) any individual, partnership,
     firm, corporation, association, trust, unincorporated organization or
     other entity, or any syndicate or group deemed to be a person under
     Section 14(d)(2) of the Exchange Act, is or becomes the "beneficial
     owner" (as defined in rule 13D-3 of the General Rules and Regulations
     under the Exchange Act), directly or indirectly, of securities of the
     Company representing 20 percent or more the of the combined voting
     power of the Company's then outstanding securities entitled to vote in
     the election of directors of the Company; or (ii) during any period of
     two (2) consecutive years (not including any period prior to the
     adoption of this amendment), individuals who at the beginning of such
     period constitute the Board of Directors and any new directors whose
     election by the Board of Directors or nomination for election by the
     Company's stockholders was approved by a vote of at least three-
     quarters (3/4) of the directors then still in office who either were
     directors at the beginning of the period or whose election or
     nomination for election was previously so approved, cease for any
     reason to constitute a majority thereof.

     For purposes of this lump sum payment in the event of a Change in
     Control, the present value of the accrued benefit shall be calculated
     using such actuarial assumptions as the Compensation Committee shall
     adopt from time to time.

5.   ADMINISTRATION OF THE PLAN

     The Plan shall be administered by the Compensation Committee.  The
     Committee shall have all such powers that may be necessary to carry
     out the provisions of the Plan in the absence of any action by the
     Board, including without limitation, the power to delegate
     administrative matters to other persons, to construe and interpret the
     Plan, to adopt and revise the rules, regulations and forms relating to
     and consistent with the Plan's terms and to make any other
     determinations which it deems necessary or advisable for the
     implementation and administration of the Plan provided, however, that
     the right and power to amend and/or terminate the Plan are reserved
     exclusively to the Board.  Subject to the foregoing, all decisions and
     determinations by the Committee shall be final, binding and conclusive
     as to all parties including, without limitation, the Company, any
     participant hereunder and all other employees and persons.

6.   SOURCE OF BENEFIT PAYMENTS

     No fund or other assets of the Company shall be segregated and
     attributable to any benefit payments to be made at a later time, as



     herein above provided, but rather benefit payments under the Plan
     shall be made from the general assets of the company at the time any
     such payment becomes due and payable.   Benefit payments under the
     Plan are to be taken as deductions for income tax purposes in the
     Company's fiscal year that they are actually made.  At such time as
     any benefit payments are made, it shall be determined by the Company
     whether any portion thereof is allocable to any affiliates(s) of the
     Company because of their recipient having also served as a Corporate
     Officer of such affiliate(s); and, if such is the case, the Company
     may elect to obtain reimbursement from such affiliate(s) as
     appropriate, for such allocable portion.  No participant or surviving
     spouse or beneficiary thereof shall have any proprietary rights of any
     nature whatsoever with respect to any benefit payments, unless and
     until such time a benefit payment is made to such participant or the
     surviving spouse or beneficiaries thereof, and then only as to the
     amount of such payment.

7.   NON-ALIENATION OF PAYMENTS

     Any benefits payable under the Plan shall not be subject in any manner
     to alienation, sale, transfer, assignment, pledge, attachment,
     garnishment or encumbrance of any kind, by will, or by inter vivos
     instrument.  Any attempt to alienate, sell, transfer, assign, pledge
     or otherwise encumber any such payment, whether currently or
     thereafter payable, shall not be recognized by the Committee or the
     Company.  Any benefit payment due hereunder shall not in any manner be
     liable for, or subject to, the debts or liabilities of any participant
     or the surviving spouse or beneficiary thereof, as the case may be.

     If any such participant, surviving spouse or beneficiary shall attempt
     to alienate, sell, transfer, assign, pledge or otherwise encumber any
     benefit payments to be made to that person under the Plan or any part
     thereof, or if by reason of such person's bankruptcy or other event
     happening at any time, such payments would devolve upon anyone else or
     would not be enjoyed by such person, then the Committee, in its
     discretion, may terminate such person's interest in any such benefit
     payment, and hold or apply it to or for the benefit of that person,
     the spouse, children, or other dependents hereof, or any of them, in
     such manner as the Committee may deem proper.

8.   INCOMPETENCY

     Every person receiving or claiming benefit payments under the Plan
     shall be conclusively presumed to be mentally competent until the date
     on which the Committee receives a written notice, in a form and manner
     acceptable to the Committee, that such person is incompetent and that
     a guardian, conservator, or other person legally vested with the care
     of his estate has bee appointed.  In the event a guardian or



     conservator of the estate of any person receiving or claiming benefit
     payment under the Plan shall be appointed by a court of competent
     jurisdiction, payments may be made to such guardian or conservator;
     provided that proper proof of appointment and continuing qualification
     is furnished in a form and manner acceptable to the Committee.  Any
     such payment so made shall be a complete discharge of any liability
     therefor.

9.   LIMITATION OF RIGHTS AGAINST THE COMPANY

     Participation in this Plan, or any modifications thereof, or the
     payments of any benefits hereunder, shall not be construed as giving
     to any participant any right to be retained in the service of the
     Company, limiting in any way the right of the Company to terminate
     such participant's employment at any time, evidencing any agreement or
     understanding express or implied, that the Company will employ such
     participant in any particular position or at any particular rate of
     compensation and/or guaranteeing such participant any right to receive
     any other form or amount of renumeration from the Company.

10.  CONSTRUCTION

     The Plan shall be construed, administered and governed in all respects
     under and by the laws of the State of Michigan.  Wherever any words
     are used herein in the masculine, they shall be construed as though
     they were used in the feminine for all cases where they would so
     apply; and wherever any words are used herein in the singular or the
     plural, they shall be construed as though they were used in the plural
     or the singular, as the case may be, in all cases where they would so
     apply.  The words "hereof", "hereunder" and other similar compounds of
     the word "here" shall mean and refer to this entire document and not
     to any particular paragraph.

11.  LIABILITY

     Neither the Company nor any shareholder, director, officer or other
     employee of the Company or any member of the committee or any other
     person shall be jointly or severally liable for any act or failure to
     act hereunder, except for gross negligence or fraud.

12.  AMENDMENT OR TERMINATION OF THE PLAN

     The Company, by action of the Board, reserves the right to amend,
     modify, terminate or discontinue the Plan at any time; and such action
     shall be final, binding and conclusive as to all parties, including
     any participant hereunder, any surviving spouse or beneficiary thereof
     and all other Company employees and persons.




13.  SUCCESSORS AND ASSIGNS

     The terms and conditions of the Plan, as amended and in effect from
     time to time, shall be binding upon the successors and assigns of the
     Company, including without limitation any entity into which the
     Company may be merged or with which the Company may be consolidated.