<PAGE>

                                                                    EXHIBIT 10.2

================================================================================

                      AMENDED AND RESTATED TRUST AGREEMENT

                                      among

                          MERCANTILE BANK CORPORATION,
                                  as Depositor

                            WILMINGTON TRUST COMPANY,
                               as Property Trustee

                            WILMINGTON TRUST COMPANY,
                               as Delaware Trustee

                                       and

                    THE ADMINISTRATIVE TRUSTEES NAMED HEREIN
                           as Administrative Trustees

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

                         Dated as of September 16, 2004

                         Mercantile Bank Capital Trust I

================================================================================

<PAGE>

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                        Page
                                                                                                        ----
<S>                                                                                                     <C>
ARTICLE I. Defined Terms.............................................................................     1
     SECTION 1.1.   Definitions......................................................................     1

ARTICLE II. The Trust................................................................................    11
     SECTION 2.1.   Name.............................................................................    11
     SECTION 2.2.   Office of the Delaware Trustee; Principal Place of Business......................    12
     SECTION 2.3.   Initial Contribution of Trust Property; Fees, Costs and Expenses.................    12
     SECTION 2.4.   Purposes of Trust................................................................    12
     SECTION 2.5.   Authorization to Enter into Certain Transactions.................................    12
     SECTION 2.6.   Assets of Trust..................................................................    15
     SECTION 2.7.   Title to Trust Property..........................................................    15

ARTICLE III. Payment Account; Paying Agents..........................................................    15
     SECTION 3.1.   Payment Account..................................................................    15
     SECTION 3.2.   Appointment of Paying Agents.....................................................    16

ARTICLE IV. Distributions; Redemption................................................................    16
     SECTION 4.1.   Distributions....................................................................    16
     SECTION 4.2.   Redemption.......................................................................    18
     SECTION 4.3.   Subordination of Common Securities...............................................    21
     SECTION 4.4.   Payment Procedures...............................................................    22
     SECTION 4.5.   Withholding Tax..................................................................    22
     SECTION 4.6.   Tax Returns and Other Reports....................................................    22
     SECTION 4.7.   Payment of Taxes, Duties, Etc. of the Trust......................................    23
     SECTION 4.8.   Payments under Indenture or Pursuant to Direct Actions...........................    23
     SECTION 4.9.   Exchanges........................................................................    23
     SECTION 4.10.  Calculation Agent................................................................    24
     SECTION 4.11.  Certain Accounting Matters.......................................................    24

ARTICLE V. Securities................................................................................    25
     SECTION 5.1.   Initial Ownership................................................................    25
     SECTION 5.2.   Authorized Trust Securities......................................................    25
     SECTION 5.3.   Issuance of the Common Securities; Subscription and Purchase of Notes............    25
     SECTION 5.4.   The Securities Certificates......................................................    25
     SECTION 5.5.   Rights of Holders................................................................    26
     SECTION 5.6.   Book-Entry Preferred Securities..................................................    26
     SECTION 5.7.   Registration of Transfer and Exchange of Preferred Securities Certificates.......    28
     SECTION 5.8.   Mutilated, Destroyed, Lost or Stolen Securities Certificates.....................    29
     SECTION 5.9.   Persons Deemed Holders...........................................................    30
     SECTION 5.10.  Cancellation.....................................................................    30
     SECTION 5.11.  Ownership of Common Securities by Depositor......................................    31
     SECTION 5.12.  Restricted Legends...............................................................    31
     SECTION 5.13.  Form of Certificate of Authentication............................................    34

ARTICLE VI. Meetings; Voting; Acts of Holders........................................................    34
     SECTION 6.1.   Notice of Meetings...............................................................    34
</TABLE>

                                        i
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<TABLE>
<S>                                                                                                      <C>
     SECTION 6.2.   Meetings of Holders of the Preferred Securities..................................    35
     SECTION 6.3.   Voting Rights....................................................................    35
     SECTION 6.4.   Proxies, Etc.....................................................................    35
     SECTION 6.5.   Holder Action by Written Consent.................................................    35
     SECTION 6.6.   Record Date for Voting and Other Purposes........................................    36
     SECTION 6.7.   Acts of Holders..................................................................    36
     SECTION 6.8.   Inspection of Records............................................................    37
     SECTION 6.9.   Limitations on Voting Rights.....................................................    37
     SECTION 6.10.  Acceleration of Maturity; Rescission of Annulment; Waivers of Past Defaults......    38

ARTICLE VII. Representations and Warranties..........................................................    40
     SECTION 7.1.   Representations and Warranties of the Property Trustee and the Delaware Trustee..    40
     SECTION 7.2.   Representations and Warranties of Depositor......................................    41

ARTICLE VIII. The Trustees...........................................................................    42
     SECTION 8.1.   Number of Trustees...............................................................    42
     SECTION 8.2.   Property Trustee Required........................................................    43
     SECTION 8.3.   Delaware Trustee Required........................................................    43
     SECTION 8.4.   Appointment of Administrative Trustees...........................................    43
     SECTION 8.5.   Duties and Responsibilities of the Trustees......................................    44
     SECTION 8.6.   Notices of Defaults and Extensions...............................................    45
     SECTION 8.7.   Certain Rights of Property Trustee...............................................    46
     SECTION 8.8.   Delegation of Power..............................................................    48
     SECTION 8.9.   May Hold Securities..............................................................    48
     SECTION 8.10.  Compensation; Reimbursement; Indemnity...........................................    48
     SECTION 8.11.  Resignation and Removal; Appointment of Successor................................    49
     SECTION 8.12.  Acceptance of Appointment by Successor...........................................    51
     SECTION 8.13.  Merger, Conversion, Consolidation or Succession to Business......................    51
     SECTION 8.14.  Not Responsible for Recitals or Issuance of Securities...........................    51
     SECTION 8.15.  Property Trustee May File Proofs of Claim........................................    52
     SECTION 8.16.  Reports to and from the Property Trustee.........................................    52

ARTICLE IX. Termination, Liquidation and Merger......................................................    53
     SECTION 9.1.   Dissolution Upon Expiration Date.................................................    53
     SECTION 9.2.   Early Termination................................................................    53
     SECTION 9.3.   Termination......................................................................    54
     SECTION 9.4.   Liquidation......................................................................    54
     SECTION 9.5.   Mergers, Consolidations, Amalgamations or Replacements of Trust..................    55

ARTICLE X. Information to Purchaser..................................................................    56
     SECTION 10.1.  Depositor Obligations to Purchaser...............................................    56
     SECTION 10.2.  Trustee's Obligations to Purchaser...............................................    57

ARTICLE XI. Miscellaneous Provisions.................................................................    57
     SECTION 11.1.  Limitation of Rights of Holders..................................................    57
     SECTION 11.2.  Agreed Tax Treatment of Trust and Trust Securities...............................    57
     SECTION 11.3.  Amendment........................................................................    57
     SECTION 11.4.  Separability.....................................................................    59
     SECTION 11.5.  Governing Law....................................................................    59
     SECTION 11.6.  Successors.......................................................................    59
</TABLE>

                                       ii
<PAGE>

<TABLE>
<S>                                                                                                 <C>
      SECTION 11.7.  Headings...................................................................    59
      SECTION 11.8.  Reports, Notices and Demands...............................................    59
      SECTION 11.9.  Agreement Not to Petition..................................................    60
</TABLE>

Exhibit A      Certificate of Trust of Mercantile Bank Capital Trust I
Exhibit B-1    Form of Series A Common Securities Certificate
Exhibit B-2    Form of Series B Common Securities Certificate
Exhibit C-1    Form of Series A Preferred Securities Certificate
Exhibit C-2    Form of Series B Preferred Securities Certificate
Exhibit D      Junior Subordinated Indenture
Exhibit E      Form of Transferee Certificate to be Executed by Transferees
               other than QIBs
Exhibit F      Form of Transferee Certificate to be Executed by QIBs
Exhibit G      Form of Officer's Certificate
Schedule A     Calculation of LIBOR

                                       iii
<PAGE>

      AMENDED AND RESTATED TRUST AGREEMENT, dated as of September 16, 2004,
among (i) Mercantile Bank Corporation, a Michigan corporation (including any
successors or permitted assigns, the "Depositor"), (ii) Wilmington Trust
Company, a Delaware banking corporation, as property trustee (in such capacity,
the "Property Trustee"), (iii) Wilmington Trust Company, a Delaware banking
corporation, as Delaware trustee (in such capacity, the "Delaware Trustee"),
(iv) Gerald R. Johnson, Jr., an individual, Michael H. Price, an individual, and
Charles E. Christmas, an individual, each of whose address is c/o Mercantile
Bank Corporation, 5650 Byron Center Avenue SW, Wyoming, Michigan 49509, as
administrative trustees (in such capacities, each an "Administrative Trustee"
and, collectively, the "Administrative Trustees" and, together with the Property
Trustee and the Delaware Trustee, the "Trustees") and (v) the several Holders,
as hereinafter defined.

                                   WITNESSETH

      WHEREAS, the Depositor, the Property Trustee and the Delaware Trustee have
heretofore created a Delaware statutory trust pursuant to the Delaware Statutory
Trust Act, as hereinafter defined, by entering into a Trust Agreement, dated as
of September 14, 2004 (the "Original Trust Agreement"), and by executing and
filing with the Secretary of State of the State of Delaware the Certificate of
Trust, substantially in the form attached as Exhibit A; and

      WHEREAS, the Depositor and the Trustees desire to amend and restate the
Original Trust Agreement in its entirety as set forth herein to provide for,
among other things, (i) the issuance of the Common Securities by the Trust to
the Depositor, (ii) the issuance and sale of the Preferred Securities by the
Trust pursuant to the Subscription Agreements and (iii) the acquisition by the
Trust from the Depositor of all of the right, title and interest in and to the
Notes;

      NOW, THEREFORE, in consideration of the agreements and obligations set
forth herein and for other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, each party, for the benefit of the
other parties and for the benefit of the Holders, hereby amends and restates the
Original Trust Agreement in its entirety and agrees as follows:

                                   ARTICLE I.

                                  DEFINED TERMS

      SECTION 1.1. Definitions.

      For all purposes of this Trust Agreement, except as otherwise expressly
provided or unless the context otherwise requires:

            (a)   the terms defined in this Article I have the meanings assigned
      to them in this Article I;

            (b)   the words "include", "includes" and "including" shall be
      deemed to be followed by the phrase "without limitation";

                                       1
<PAGE>

            (c)   all accounting terms used but not defined herein have the
      meanings assigned to them in accordance with United States generally
      accepted accounting principles;

            (d)   unless the context otherwise requires, any reference to an
      "Article", a "Section", a "Schedule" or an "Exhibit" refers to an Article,
      a Section, a Schedule or an Exhibit, as the case may be, of or to this
      Trust Agreement;

            (e)   the words "hereby", "herein", "hereof" and "hereunder" and
      other words of similar import refer to this Trust Agreement as a whole and
      not to any particular Article, Section or other subdivision;

            (f)   a reference to the singular includes the plural and vice
      versa; and

            (g)   the masculine, feminine or neuter genders used herein shall
      include the masculine, feminine and neuter genders.

      "Act" has the meaning specified in Section 6.7.

      "Additional Interest" has the meaning specified in Section 1.1 of the
Indenture.

      "Additional Interest Amount" means, with respect to Trust Securities of a
given Liquidation Amount and/or a given period, the amount of Additional
Interest paid by the Depositor on a Like Amount of Notes for such period.

      "Additional Taxes" has the meaning specified in Section 1.1 of the
Indenture.

      "Additional Tax Sums" has the meaning specified in Section 10.5 of the
Indenture.

      "Administrative Trustee" means each of the Persons identified as an
"Administrative Trustee" in the preamble to this Trust Agreement, solely in each
such Person's capacity as Administrative Trustee of the Trust and not in such
Person's individual capacity, or any successor Administrative Trustee appointed
as herein provided.

      "Affiliate" of any specified Person means any other Person directly or
indirectly controlling or controlled by or under direct or indirect common
control with such specified Person. For the purposes of this definition,
"control" when used with respect to any specified Person means the power to
direct the management and policies of such Person, directly or indirectly,
whether through the ownership of voting securities, by contract or otherwise;
and the terms "controlling" and "controlled" have meanings correlative to the
foregoing.

      "Applicable Depositary Procedures" means, with respect to any transfer or
transaction involving a Book-Entry Preferred Security, the rules and procedures
of the Depositary for such Book-Entry Preferred Security, in each case to the
extent applicable to such transaction and as in effect from time to time.

      "Bankruptcy Event" means, with respect to any Person:

                                       2
<PAGE>

            (a)   the entry of a decree or order by a court having jurisdiction
      in the premises (i) judging such Person a bankrupt or insolvent, (ii)
      approving as properly filed a petition seeking reorganization,
      arrangement, adjudication or composition of or in respect of such Person
      under any applicable Federal or state bankruptcy, insolvency,
      reorganization or other similar law, (iii) appointing a custodian,
      receiver, liquidator, assignee, trustee, sequestrator or other similar
      official of such Person or of any substantial part of its property or (iv)
      ordering the winding up or liquidation of its affairs, and the continuance
      of any such decree or order unstayed and in effect for a period of sixty
      (60) consecutive days; or

            (b)   the institution by such Person of proceedings to be
      adjudicated a bankrupt or insolvent, or the consent by it to the
      institution of bankruptcy or insolvency proceedings against it, or the
      filing by it of a petition or answer or consent seeking reorganization or
      relief under any applicable Federal or State bankruptcy, insolvency,
      reorganization or other similar law, or the consent by it to the filing of
      any such petition or to the appointment of a custodian, receiver,
      liquidator, assignee, trustee, sequestrator or similar official of such
      Person or of any substantial part of its property, or the making by it of
      an assignment for the benefit of creditors, or the admission by it in
      writing of its inability to pay its debts generally as they become due and
      its willingness to be adjudicated a bankrupt or insolvent, or the taking
      of corporate action by such Person in furtherance of any such action.

      "Bankruptcy Laws" means all Federal and state bankruptcy, insolvency,
reorganization and other similar laws, including the United States Bankruptcy
Code.

      "Book-Entry Preferred Security" means a Preferred Security, the ownership
and transfers of which shall be made through book entries by a Depositary.

      "Business Day" means a day other than (a) a Saturday or Sunday, (b) a day
on which banking institutions in the City of New York are authorized or required
by law or executive order to remain closed or (c) a day on which the Corporate
Trust Office is closed for business.

      "Calculation Agent" has the meaning specified in Section 4.10.

      "Capital Disqualification Event" has the meaning specified in Section 1.1
of the Indenture.

      "Closing Date" has the meaning specified in the Placement Agreement.

      "Code" means the United States Internal Revenue Code of 1986, as amended.

      "Commission" means the Securities and Exchange Commission, as from time to
time constituted, created under the Exchange Act or, if at any time after the
execution of this Trust Agreement such Commission is not existing and performing
the duties assigned to it, then the body performing such duties at such time.

                                       3
<PAGE>

      "Common Securities" means the Series A and Series B Floating Rate Common
Securities, representing undivided beneficial interests in the assets of the
Trust, having a Liquidation Amount of $1,000 per security and having the rights
provided therefor in this Trust Agreement.

      "Common Securities Certificates" means any one of the certificates
evidencing ownership of the Common Securities, substantially in the form
attached as Exhibits B-1 and B-2, with such changes and additions thereto or
deletions therefrom as may be required by ordinary usage, custom or practice.

      "Corporate Trust Office" means the principal office of the Property
Trustee at which any particular time its corporate trust business shall be
administered, which office at the date of this Trust Agreement is located at
Rodney Square North, 1100 North Market Street, Wilmington, Delaware 19890-1600,
Attention: Corporate Trust Administration.

      "Definitive Preferred Securities Certificates" means Preferred Securities
issued in certificated, fully registered form that are not Global Preferred
Securities.

      "Delaware Statutory Trust Act" means Chapter 38 of Title 12 of the
Delaware Code, 12 Del. Code Section 3801 et seq., or any successor statute
thereto, in each case as amended from time to time.

      "Delaware Trustee" means the Person identified as the "Delaware Trustee"
in the preamble to this Trust Agreement, solely in its capacity as Delaware
Trustee of the Trust and not in its individual capacity, or its successor in
interest in such capacity, or any successor Delaware Trustee appointed as herein
provided.

      "Depositary" means an organization registered as a clearing agency under
the Exchange Act that is designated as Depositary by the Depositor or any
successor thereto. DTC will be the initial Depositary.

      "Depositary Participant" means a broker, dealer, bank, other financial
institution or other Person for whom from time to time the Depositary effects
book-entry transfers and pledges of securities deposited with the Depositary.

      "Depositor" has the meaning specified in the preamble to this Trust
Agreement and any successors and permitted assigns.

      "Depositor Affiliate" has the meaning specified in Section 4.9.

      "Distribution Date" has the meaning specified in Section 4.1(a)(i).

      "Distributions" means amounts payable in respect of the Trust Securities
as provided in Section 4.1.

      "DTC" means The Depository Trust Company or any successor thereto.

      "Early Termination Event" has the meaning specified in Section 9.2.

                                       4
<PAGE>

      "Event of Default" means any one of the following events (whatever the
reason for such event and whether it shall be voluntary or involuntary or be
effected by operation of law or pursuant to any judgment, decree or order of any
court or any order, rule or regulation of any administrative or governmental
body):

            (a)   the occurrence of a Note Event of Default; or

            (b)   default by the Trust in the payment of any Distribution when
      it becomes due and payable, and continuation of such default for a period
      of thirty (30) days; or

            (c)   default by the Trust in the payment of any Redemption Price of
      any Trust Security when it becomes due and payable; or

            (d)   default in the performance, or breach, in any material respect
      of any covenant or warranty of the Trustees in this Trust Agreement (other
      than those specified in clause (b) or (c) above) and continuation of such
      default or breach for a period of thirty (30) days after there has been
      given, by registered or certified mail, to the Trustees and to the
      Depositor by the Holders of at least twenty five percent (25%) in
      aggregate Liquidation Amount of the Outstanding Preferred Securities a
      written notice specifying such default or breach and requiring it to be
      remedied and stating that such notice is a "Notice of Default" hereunder;
      or

            (e)   the occurrence of a Bankruptcy Event with respect to the
      Property Trustee if a successor Property Trustee has not been appointed
      within ninety (90) days thereof.

      "Exchange Act" means the Securities Exchange Act of 1934, and any
successor statute thereto, in each case as amended from time to time.

      "Expiration Date" has the meaning specified in Section 9.1.

      "Extension Period" has the meaning specified in Section 4.1(a)(ii).

      "Federal Reserve" means the Board of Governors of the Federal Reserve
System, the staff thereof, or a Federal Reserve Bank, acting through delegated
authority, in each case under the rules, regulations and policies of the Federal
Reserve System, or if at any time after the execution of this Trust Agreement
any such entity is not existing and performing the duties now assigned to it ,
any successor body performing similar duties or functions.

      "Fiscal Year" shall be the fiscal year of the Trust, which shall be the
calendar year, or such other period as is required by the Code.

      "Global Preferred Security" means a Preferred Securities Certificate
evidencing ownership of Book-Entry Preferred Securities.

      "Guarantee Agreement" means the Guarantee Agreement executed and delivered
by the Depositor and Wilmington Trust Company, as guarantee trustee,
contemporaneously with the execution and delivery of this Trust Agreement for
the benefit of the holders of the Preferred Securities, as amended from time to
time.

                                       5
<PAGE>

      "Holder" means a Person in whose name a Trust Security or Trust Securities
are registered in the Securities Register; any such Person shall be a beneficial
owner within the meaning of the Delaware Statutory Trust Act.

      "Indemnified Person" has the meaning specified in Section 8.10(c).

      "Indenture" means the Junior Subordinated Indenture executed and delivered
by the Depositor and the Note Trustee contemporaneously with the execution and
delivery of this Trust Agreement, for the benefit of the holders of the Notes, a
copy of which is attached hereto as Exhibit D, as amended or supplemented from
time to time.

      "Indenture Redemption Price" has the meaning specified in Section 4.2(c).

      "Interest Payment Date" has the meaning specified in Section 1.1 of the
Indenture.

      "Investment Company Act" means the Investment Company Act of 1940, or any
successor statute thereto, in each case as amended from time to time.

      "Investment Company Event" has the meaning specified in Section 1.1 of the
Indenture.

      "LIBOR" has the meaning specified in Schedule A.

      "LIBOR Business Day" has the meaning specified in Schedule A.

      "LIBOR Determination Date" has the meaning specified in Schedule A.

      "Lien" means any lien, pledge, charge, encumbrance, mortgage, deed of
trust, adverse ownership interest, hypothecation, assignment, security interest
or preference, priority or other security agreement or preferential arrangement
of any kind or nature whatsoever.

      "Like Amount" means (a) with respect to a redemption of any Trust
Securities, Trust Securities having a Liquidation Amount equal to the principal
amount of Notes of the same series to be contemporaneously redeemed or paid at
maturity in accordance with the Indenture, the proceeds of which will be used to
pay the Redemption Price of such Trust Securities, (b) with respect to a
distribution of Notes to Holders of Trust Securities in connection with a
dissolution of the Trust, Notes of the same series having a principal amount
equal to the Liquidation Amount of the Trust Securities of the Holder to whom
such Notes are distributed and (c) with respect to any distribution of
Additional Interest Amounts to Holders of Trust Securities, Notes of the same
series having a principal amount equal to the Liquidation Amount of the Trust
Securities in respect of which such distribution is made.

      "Liquidation Amount" means the stated amount of $1,000 per Trust Security.

      "Liquidation Date" means the date on which assets are to be distributed to
Holders in accordance with Section 9.4(a) hereunder following dissolution of the
Trust.

      "Liquidation Distribution" has the meaning specified in Section 9.4(d).

                                       6
<PAGE>

      "Majority in Liquidation Amount of the Preferred Securities" means
Preferred Securities representing more than fifty percent (50%) of the aggregate
Liquidation Amount of all (or a specified group of) then Outstanding Preferred
Securities.

      "Note Event of Default" means any "Event of Default" specified in Section
5.1 of the Indenture.

      "Note Redemption Date" means, with respect to any Notes to be redeemed
under the Indenture, the date fixed for redemption of such Notes under the
Indenture.

      "Note Trustee" means the Person identified as the "Trustee" in the
Indenture, solely in its capacity as Trustee pursuant to the Indenture and not
in its individual capacity, or its successor in interest in such capacity, or
any successor Trustee appointed as provided in the Indenture.

      "Notes" means the Depositor's Series A and Series B Floating Rate Junior
Subordinated Notes issued pursuant to the Indenture.

      "Office of Thrift Supervision" means the Office of Thrift Supervision, as
from time to time constituted or, if at any time after the execution of this
Trust Agreement such Office is not existing and performing the duties now
assigned to it, then the body performing such duties at such time.

      "Officers' Certificate" means a certificate signed by the Chief Executive
Officer, the President or an Executive Vice President, and by the Chief
Financial Officer, Treasurer or an Assistant Treasurer, of the Depositor, and
delivered to the Trustees. Any Officers' Certificate delivered with respect to
compliance with a condition or covenant provided for in this Trust Agreement
(other than the Officers' Certificate provided pursuant to Section 8.16(a))
shall include:

            (a)   a statement by each officer signing the Officers' Certificate
      that such officer has read the covenant or condition and the definitions
      relating thereto;

            (b)   a brief statement of the nature and scope of the examination
      or investigation undertaken by such officer in rendering the Officers'
      Certificate;

            (c)   a statement that such officer has made such examination or
      investigation as, in such officer's opinion, is necessary to enable such
      officer to express an informed opinion as to whether or not such covenant
      or condition has been complied with; and

            (d)   a statement as to whether, in the opinion of such officer,
      such condition or covenant has been complied with.

      "Operative Documents" means the Placement Agreement, the Indenture, the
Trust Agreement, the Guarantee Agreement, the Subscription Agreements, the Notes
and the Trust Securities.

      "Opinion of Counsel" means a written opinion of counsel, who may be
counsel for, or an employee of, the Depositor or any Affiliate of the Depositor.

                                       7
<PAGE>

      "Original Issue Date" means the date of original issuance of each Trust
Security.

      "Original Trust Agreement" has the meaning specified in the recitals to
this Trust Agreement.

      "Outstanding", when used with respect to any Trust Securities, means, as
of the date of determination, all Trust Securities theretofore executed and
delivered under this Trust Agreement, except:

            (a)   Trust Securities theretofore canceled by the Property Trustee
      or delivered to the Property Trustee for cancellation;

            (b)   Trust Securities for which payment or redemption money in the
      necessary amount has been theretofore deposited with the Property Trustee
      or any Paying Agent in trust for the Holders of such Trust Securities;
      provided, that if such Trust Securities are to be redeemed, notice of such
      redemption has been duly given pursuant to this Trust Agreement; and

            (c)   Trust Securities that have been paid or in exchange for or in
      lieu of which other Trust Securities have been executed and delivered
      pursuant to the provisions of this Trust Agreement, unless proof
      satisfactory to the Property Trustee is presented that any such Trust
      Securities are held by Holders in whose hands such Trust Securities are
      valid, legal and binding obligations of the Trust;

provided, that in determining whether the Holders of the requisite Liquidation
Amount of the Outstanding Preferred Securities have given any request, demand,
authorization, direction, notice, consent or waiver hereunder, Preferred
Securities owned by the Depositor, any Trustee or any Affiliate of the Depositor
or of any Trustee shall be disregarded and deemed not to be Outstanding, except
that (i) in determining whether any Trustee shall be protected in relying upon
any such request, demand, authorization, direction, notice, consent or waiver,
only Preferred Securities that such Trustee knows to be so owned shall be so
disregarded and (ii) the foregoing shall not apply at any time when all of the
Outstanding Preferred Securities are owned by the Depositor, one or more of the
Trustees and/or any such Affiliate. Preferred Securities so owned that have been
pledged in good faith may be regarded as Outstanding if the pledgee establishes
to the satisfaction of the Administrative Trustees the pledgee's right so to act
with respect to such Preferred Securities and that the pledgee is not the
Depositor, any Trustee or any Affiliate of the Depositor or of any Trustee.

      "Owner" means each Person who is the beneficial owner of Book-Entry
Preferred Securities as reflected in the records of the Depositary or, if a
Depositary Participant is not the beneficial owner, then the beneficial owner as
reflected in the records of the Depositary Participant.

      "Paying Agent" means any Person authorized by the Administrative Trustees
to pay Distributions or other amounts in respect of the Trust Securities on
behalf of the Trust.

                                       8
<PAGE>

      "Payment Account" means a segregated non-interest-bearing corporate trust
account maintained by the Property Trustee for the benefit of the Holders in
which all amounts paid in respect of the Notes will be held and from which the
Property Trustee, through the Paying Agent, shall make payments to the Holders
in accordance with Sections 3.1, 4.1 and 4.2.

      "Person" means a legal person, including any individual, corporation,
estate, partnership, joint venture, association, joint stock company, company,
limited liability company, trust, unincorporated association or government, or
any agency or political subdivision thereof, or any other entity of whatever
nature.

      "Placement Agent" means SunTrust Capital Markets, Inc., as Placement Agent
pursuant to the Placement Agreement, whose address is 303 Peachtree Street, 24th
Floor, Mail Code 3950, Atlanta, Georgia 30308.

      "Placement Agreement" means the Placement Agreement, dated as of September
16, 2004, executed and delivered by the Trust, the Depositor and SunTrust
Capital Markets, Inc., as placement agent.

      "Preferred Securities" means the Series A and Series B Floating Rate
Preferred Securities, representing undivided beneficial interests in the assets
of the Trust, having a Liquidation Amount of $1,000 per security and having the
rights provided therefor in this Trust Agreement.

      "Preferred Securities Certificates" means any one of the certificates
evidencing ownership of the Preferred Securities, substantially in the form
attached as Exhibits C-1 and C-2, with such changes and additions thereto or
deletions therefrom as may be required by ordinary usage, custom or practice.

      "Property Trustee" means the Person identified as the "Property Trustee"
in the preamble to this Trust Agreement, solely in its capacity as Property
Trustee of the Trust and not in its individual capacity, or its successor in
interest in such capacity, or any successor Property Trustee appointed as herein
provided.

      "Purchaser" means STI Investment Management, Inc., as purchaser of the
Preferred Securities pursuant to the Subscription Agreements, whose address is
2202 Polly Drummond Office Park, Newark, Delaware 19711.

      "QIB" means a "qualified institutional buyer" as defined in Rule 144A
under the Securities Act.

      "Redemption Date" means, with respect to any Trust Security to be
redeemed, the date fixed for such redemption by or pursuant to this Trust
Agreement; provided, that each Note Redemption Date and the stated maturity (or
any date of principal repayment upon early maturity) of the Notes of a given
series shall be a Redemption Date for a Like Amount of Trust Securities of the
corresponding series.

      "Redemption Price" means, with respect to any Trust Security, the
Liquidation Amount of such Trust Security, plus accumulated and unpaid
Distributions to the Redemption Date, plus

                                       9
<PAGE>

the related amount of the premium, if any, paid by the Depositor upon the
concurrent redemption or payment at maturity of a Like Amount of Notes.

      "Reference Banks" has the meaning specified in Schedule A.

      "Responsible Officer" means, with respect to the Property Trustee, any
Senior Vice President, any Vice President, any Assistant Vice President, the
Secretary, any Assistant Secretary, the Treasurer, any Assistant Treasurer, any
Financial Services Officer or Assistant Financial Services Officer or any other
officer of the Corporate Trust Department of the Property Trustee and also
means, with respect to a particular corporate trust matter, any other officer to
whom such matter is referred because of that officer's knowledge of and
familiarity with the particular subject.

      "Securities Act" means the Securities Act of 1933, and any successor
statute thereto, in each case as amended from time to time.

      "Securities Certificate" means any one of the Common Securities
Certificates or the Preferred Securities Certificates.

      "Securities Register" and "Securities Registrar" have the respective
meanings specified in Section 5.7.

      "Series A Common Securities" means the Series A Floating Rate Common
Securities, representing an undivided beneficial interest in the assets of the
Trust, having a Liquidation Amount of $1,000 per security and having the rights
provided therefor in this Trust Agreement.

      "Series B Common Securities" means the Series B Floating Rate Common
Securities, representing an undivided beneficial interest in the assets of the
Trust, having a Liquidation Amount of $1,000 per security and having the rights
provided therefor in this Trust Agreement.

      "Series A Notes" means the Depositor's Series A Floating Rate Junior
Subordinated Notes issued pursuant to the Indenture.

      "Series B Notes" means the Depositor's Series B Floating Rate Junior
Subordinated Notes issued pursuant to the Indenture.

      "Series A Preferred Securities" means the Series A Floating Rate Preferred
Securities, representing an undivided beneficial interest in the assets of the
Trust, having a Liquidation Amount of $1,000 per security and having the rights
provided therefor in this Trust Agreement.

      "Series B Preferred Securities" means the Series B Floating Rate Preferred
Securities, representing an undivided beneficial interest in the assets of the
Trust, having a Liquidation Amount of $1,000 per security and having the rights
provided therefor in this Trust Agreement.

      "Series A Trust Securities" means the Series A Common Securities and the
Series A Preferred Securities."

                                       10
<PAGE>

      "Series B Trust Securities" means the Series B Common Securities and the
Series B Preferred Securities."

      "Special Event Redemption Price" has the meaning specified in Section 11.2
of the Indenture.

      "Subscription Agreements" means the Preferred Securities Subscription
Agreements, dated as of the respective dates of issuance of the Series A and
Series B Preferred Securities, by and among the Company, the Trust, the
Purchaser and SunTrust Capital Markets, Inc. (as to certain provisions thereof).

      "Successor Securities" has the meaning specified in Section 9.5(a).

      "Tax Event" has the meaning specified in Section 1.1 of the Indenture.

      "Trust" means the Delaware statutory trust known as "Mercantile Bank
Capital Trust I," which was created on September 14, 2004, under the Delaware
Statutory Trust Act pursuant to the Original Trust Agreement and the filing of
the Certificate of Trust, and continued pursuant to this Trust Agreement.

      "Trust Agreement" means this Amended and Restated Trust Agreement,
including all Schedules and Exhibits, as the same may be modified, amended or
supplemented from time to time in accordance with the applicable provisions
hereof.

      "Trustees" means the Administrative Trustees, the Property Trustee and the
Delaware Trustee, each as defined in this Article I.

      "Trust Property" means (a) the Notes, (b) any cash on deposit in, or owing
to, the Payment Account and (c) all proceeds and rights in respect of the
foregoing and any other property and assets for the time being held or deemed to
be held by the Property Trustee pursuant to the trusts of this Trust Agreement.

      "Trust Security" means any one of the Common Securities or the Preferred
Securities.

                                   ARTICLE II.

                                    THE TRUST

      SECTION 2.1. Name.

      The trust continued hereby shall be known as Mercantile Bank Capital Trust
I," as such name may be modified from time to time by the Administrative
Trustees following written notice to the Holders of Trust Securities and the
other Trustees, in which name the Trustees may conduct the business of the
Trust, make and execute contracts and other instruments on behalf of the Trust
and sue and be sued.

                                       11
<PAGE>

      SECTION 2.2. Office of the Delaware Trustee; Principal Place of Business.

      The address of the Delaware Trustee in the State of Delaware is Rodney
Square North, 1100 North Market Street, Wilmington, Delaware 19890-1600,
Attention: Corporate Trust Administration, or such other address in the State of
Delaware as the Delaware Trustee may designate by written notice to the Holders,
the Depositor, the Property Trustee and the Administrative Trustees. The
principal executive office of the Trust is c/o Mercantile Bank Corporation, 5650
Byron Center Avenue SW, Wyoming, Michigan 49509, Attention: Chief Financial
Officer, as such address may be changed from time to time by the Administrative
Trustees following written notice to the Holders and the other Trustees.

      SECTION 2.3. Initial Contribution of Trust Property; Fees, Costs and
Expenses.

      The Property Trustee acknowledges receipt from the Depositor in connection
with the Original Trust Agreement of the sum of ten dollars ($10), which
constituted the initial Trust Property. The Depositor shall pay all fees, costs
and expenses of the Trust (except with respect to the Trust Securities) as they
arise or shall, upon request of any Trustee, promptly reimburse such Trustee for
any such fees, costs and expenses paid by such Trustee. The Depositor shall make
no claim upon the Trust Property for the payment of such fees, costs or
expenses.

      SECTION 2.4. Purposes of Trust.

      (a)   The exclusive purposes and functions of the Trust are to (i) issue
and sell Trust Securities and use the proceeds from such sale to acquire the
Notes and (ii) engage in only those activities necessary or incidental thereto.
The Delaware Trustee, the Property Trustee and the Administrative Trustees are
trustees of the Trust, and have all the rights, powers and duties to the extent
set forth herein. The Trustees hereby acknowledge that they are trustees of the
Trust.

      (b)   So long as this Trust Agreement remains in effect, the Trust (or the
Trustees acting on behalf of the Trust) shall not undertake any business,
activities or transaction except as expressly provided herein or contemplated
hereby. In particular, the Trust (or the Trustees acting on behalf of the Trust)
shall not (i) acquire any investments or engage in any activities not authorized
by this Trust Agreement, (ii) sell, assign, transfer, exchange, mortgage,
pledge, set-off or otherwise dispose of any of the Trust Property or interests
therein, including to Holders, except as expressly provided herein, (iii) incur
any indebtedness for borrowed money or issue any other debt, (iv) take or
consent to any action that would result in the placement of a Lien on any of the
Trust Property, (v) take or consent to any action that would reasonably be
expected to cause the Trust to become taxable as a corporation or classified as
other than a grantor trust for United States federal income tax purposes, (vi)
take or consent to any action that would cause the Notes to be treated as other
than indebtedness of the Depositor for United States federal income tax purposes
or (vii) take or consent to any action that would cause the Trust to be deemed
to be an "investment company" required to be registered under the Investment
Company Act.

      SECTION 2.5. Authorization to Enter into Certain Transactions.

      (a)   The Trustees shall conduct the affairs of the Trust in accordance
with and subject to the terms of this Trust Agreement. In accordance with the
following provisions (i) and (ii), the

                                       12
<PAGE>

Trustees shall have the authority to enter into all transactions and agreements
determined by the Trustees to be appropriate in exercising the authority,
express or implied, otherwise granted to the Trustees, under this Trust
Agreement, and to perform all acts in furtherance thereof, including the
following:

            (i)   As among the Trustees, each Administrative Trustee shall
      severally have the power and authority to act on behalf of the Trust with
      respect to the following matters:

                  (A)   the issuance and sale of the Trust Securities;

                  (B)   to cause the Trust to enter into, and to execute,
            deliver and perform on behalf of the Trust, such agreements as may
            be necessary or desirable in connection with the purposes and
            function of the Trust, including, without limitation, common
            securities subscription agreements and junior subordinated note
            subscription agreements and to cause the Trust to perform the
            Placement Agreement and the Subscription Agreements;

                  (C)   assisting in the sale of the Preferred Securities in one
            or more transactions exempt from registration under the Securities
            Act, and in compliance with applicable state securities or blue sky
            laws;

                  (D)   assisting in the sending of notices (other than notices
            of default) and other information regarding the Trust Securities and
            the Notes to the Holders in accordance with this Trust Agreement;

                  (E)   the appointment of a Paying Agent and Securities
            Registrar in accordance with this Trust Agreement;

                  (F)   execution of the Trust Securities on behalf of the Trust
            in accordance with this Trust Agreement;

                  (G)   execution and delivery of closing certificates, if any,
            pursuant to the Placement Agreement and application for a taxpayer
            identification number for the Trust;

                  (H)   preparation and filing of all applicable tax returns and
            tax information reports that are required to be filed on behalf of
            the Trust;

                  (I)   establishing a record date with respect to all actions
            to be taken hereunder that require a record date to be established,
            except as provided in Section 6.10(a);

                  (J)   unless otherwise required by the Delaware Statutory
            Trust Act to execute on behalf of the Trust (either acting alone or
            together with the other Administrative Trustees) any documents that
            such Administrative Trustee has the power to execute pursuant to
            this Trust Agreement; and

                                       13
<PAGE>

                  (K)   the taking of any action incidental to the foregoing as
            such Administrative Trustee may from time to time determine is
            necessary or advisable to give effect to the terms of this Trust
            Agreement.

            (ii)  As among the Trustees, the Property Trustee shall have the
      power, duty and authority to act on behalf of the Trust with respect to
      the following matters:

                  (A)   the receipt and holding of legal title of the Notes;

                  (B)   the establishment of the Payment Account;

                  (C)   the collection of interest, principal and any other
            payments made in respect of the Notes and the holding of such
            amounts in the Payment Account;

                  (D)   the distribution through the Paying Agent of amounts
            distributable to the Holders in respect of the Trust Securities;

                  (E)   the exercise of all of the rights, powers and privileges
            of a holder of the Notes in accordance with the terms of this Trust
            Agreement;

                  (F)   the sending of notices of default and other information
            regarding the Trust Securities and the Notes to the Holders in
            accordance with this Trust Agreement;

                  (G)   the distribution of the Trust Property in accordance
            with the terms of this Trust Agreement;

                  (H)   to the extent provided in this Trust Agreement, the
            winding up of the affairs of and liquidation of the Trust and the
            preparation, execution and filing of the certificate of cancellation
            of the Trust with the Secretary of State of the State of Delaware;
            and

                  (I)   the taking of any action incidental to the foregoing as
            the Property Trustee may from time to time determine is necessary or
            advisable to give effect to the terms of this Trust Agreement and
            protect and conserve the Trust Property for the benefit of the
            Holders (without consideration of the effect of any such action on
            any particular Holder).

      (b)   In connection with the issue and sale of the Preferred Securities,
the Depositor shall have the right and responsibility to assist the Trust with
respect to, or effect on behalf of the Trust, the following (and any actions
taken by the Depositor in furtherance of the following prior to the date of this
Trust Agreement are hereby ratified and confirmed in all respects):

            (i)   the negotiation of the terms of, and the execution and
      delivery of, the Placement Agreement and the Subscription Agreements
      providing for the sale of the Preferred Securities in one or more
      transactions exempt from registration under the Securities Act, and in
      compliance with applicable state securities or blue sky laws; and

                                       14
<PAGE>

            (ii)  the taking of any other actions necessary or desirable to
      carry out any of the foregoing activities.

      (c)   Notwithstanding anything herein to the contrary, the Administrative
Trustees are authorized and directed to conduct the affairs of the Trust and to
operate the Trust so that the Trust will not be taxable as a corporation or
classified as other than a grantor trust for United States federal income tax
purposes, so that the Notes will be treated as indebtedness of the Depositor for
United States federal income tax purposes and so that the Trust will not be
deemed to be an "investment company" required to be registered under the
Investment Company Act. In this connection, each Administrative Trustee is
authorized to take any action, not inconsistent with applicable law, the
Certificate of Trust or this Trust Agreement, that such Administrative Trustee
determines in his or her discretion to be necessary or desirable for such
purposes, as long as such action does not adversely affect in any material
respect the interests of the Holders of the Outstanding Preferred Securities. In
no event shall the Administrative Trustees be liable to the Trust or the Holders
for any failure to comply with this Section 2.5 to the extent that such failure
results solely from a change in law or regulation or in the interpretation
thereof.

      (d)   Any action taken by a Trustee in accordance with its powers shall
constitute the act of and serve to bind the Trust. In dealing with any Trustee
acting on behalf of the Trust, no Person shall be required to inquire into the
authority of such Trustee to bind the Trust. Persons dealing with the Trust are
entitled to rely conclusively on the power and authority of any Trustee as set
forth in this Trust Agreement.

      SECTION 2.6. Assets of Trust.

      The assets of the Trust shall consist of the Trust Property.

      SECTION 2.7. Title to Trust Property.

      (a)   Legal title to all Trust Property shall be vested at all times in
the Property Trustee and shall be held and administered by the Property Trustee
in trust for the benefit of the Trust and the Holders in accordance with this
Trust Agreement.

      (b)   The Holders shall not have any right or title to the Trust Property
other than the undivided beneficial interest in the assets of the Trust
conferred by their Trust Securities and they shall have no right to call for any
partition or division of property, profits or rights of the Trust except as
described below. The Trust Securities shall be personal property giving only the
rights specifically set forth therein and in this Trust Agreement.

                                  ARTICLE III.

                         PAYMENT ACCOUNT; PAYING AGENTS

      SECTION 3.1. Payment Account.

      (a)   On or prior to the Initial Closing (as defined in the Placement
Agreement), the Property Trustee shall establish the Payment Account. The
Property Trustee and the Paying Agent shall have exclusive control and sole
right of withdrawal with respect to the Payment

                                       15
<PAGE>

Account for the purpose of making deposits in and withdrawals from the Payment
Account in accordance with this Trust Agreement. All monies and other property
deposited or held from time to time in the Payment Account shall be held by the
Property Trustee in the Payment Account for the exclusive benefit of the Holders
and for Distribution as herein provided.

      (b)   The Property Trustee shall deposit in the Payment Account, promptly\
upon receipt, all payments of principal of or interest on, and any other
payments with respect to, the Notes. Amounts held in the Payment Account shall
not be invested by the Property Trustee pending distribution thereof.

      SECTION 3.2. Appointment of Paying Agents.

      The Paying Agent shall initially be the Property Trustee. The Paying Agent
shall make Distributions to Holders from the Payment Account and shall report
the amounts of such Distributions to the Property Trustee and the Administrative
Trustees. Any Paying Agent shall have the revocable power to withdraw funds from
the Payment Account solely for the purpose of making the Distributions referred
to above. The Administrative Trustees may revoke such power and remove the
Paying Agent in their sole discretion. Any Person acting as Paying Agent shall
be permitted to resign as Paying Agent upon thirty (30) days' written notice to
the Administrative Trustees and the Property Trustee. If the Property Trustee
shall no longer be the Paying Agent or a successor Paying Agent shall resign or
its authority to act be revoked, the Administrative Trustees shall appoint a
successor (which shall be a bank or trust company) to act as Paying Agent. Such
successor Paying Agent appointed by the Administrative Trustees shall execute
and deliver to the Trustees an instrument in which such successor Paying Agent
shall agree with the Trustees that as Paying Agent, such successor Paying Agent
will hold all sums, if any, held by it for payment to the Holders in trust for
the benefit of the Holders entitled thereto until such sums shall be paid to
such Holders. The Paying Agent shall return all unclaimed funds to the Property
Trustee and upon removal of a Paying Agent such Paying Agent shall also return
all funds in its possession to the Property Trustee. The provisions of Article
VIII shall apply to the Property Trustee also in its role as Paying Agent, for
so long as the Property Trustee shall act as Paying Agent and, to the extent
applicable, to any other Paying Agent appointed hereunder. Any reference in this
Trust Agreement to the Paying Agent shall include any co-paying agent unless the
context requires otherwise.

                                   ARTICLE IV.

                            DISTRIBUTIONS; REDEMPTION

      SECTION 4.1. Distributions.

      (a)   The Trust Securities represent undivided beneficial interests in the
Trust Property, and Distributions (including any Additional Interest Amounts)
will be made on each series of the Trust Securities at the rate and on the dates
that payments of interest (including any Additional Interest) are made on the
corresponding series of Notes. Accordingly:

            (i)   Distributions on the Trust Securities shall be cumulative, and
      shall accumulate whether or not there are funds of the Trust available for
      the payment of

                                       16
<PAGE>

      Distributions. Distributions on the Trust Securities shall accumulate from
      the date of original issuance, and, except as provided in clause (ii)
      below, shall be payable quarterly in arrears on January 18, April 18, July
      18 and October 18 of each year, commencing on October 18, 2004 with
      respect to the Series A Trust Securities and January 18, 2005 with respect
      to the Series B Trust Securities. If any date on which a Distribution is
      otherwise payable on the Trust Securities is not a Business Day, then the
      payment of such Distribution shall be made on the next succeeding Business
      Day (and no interest shall accrue in respect of the amounts whose payment
      is so delayed for the period from and after each such date until the next
      succeeding Business Day), except that, if such Business Day falls in the
      next succeeding calendar year, such payment shall be made on the
      immediately preceding Business Day, in each case, with the same force and
      effect as if made on such date (each date on which Distributions are
      payable in accordance with this Section 4.1(a)(i), a "Distribution Date");

            (ii)  in the event (and to the extent) that the Depositor exercises
      its right under the Indenture to defer the payment of interest on a given
      series of Notes, Distributions on the corresponding series of Trust
      Securities shall be deferred. Under the Indenture, so long as no Note
      Event of Default pursuant to paragraphs (c), (e) or (f) of Section 5.1 of
      the Indenture has occurred and is continuing, the Depositor shall have the
      right, at any time and from time to time during the term of each series of
      Notes, to defer the payment of interest on such Notes for a period of up
      to twenty (20) consecutive quarterly interest payment periods (each such
      extended interest payment period, an "Extension Period"), during which
      Extension Period no interest on such Notes shall be due and payable
      (except any Additional Tax Sums that may be due and payable). No interest
      on a series of Notes shall be due and payable during an Extension Period,
      except at the end thereof, but each installment of interest that would
      otherwise have been due and payable during such Extension Period shall
      bear Additional Interest (to the extent payment of such interest would be
      legally enforceable) at a variable rate per annum, reset quarterly, equal
      to LIBOR plus 2.18%, compounded quarterly, from the dates on which amounts
      would otherwise have been due and payable until paid or until funds for
      the payment thereof have been made available for payment. If Distributions
      are deferred, the deferred Distributions (including Additional Interest
      Amounts) shall be paid on the date that the related Extension Period
      terminates, to Holders of the applicable series of Trust Securities as
      they appear on the books and records of the Trust on the record date
      immediately preceding such termination date.

            (iii) Distributions shall accumulate and be payable with respect to
      the Series A Trust Securities at an annual rate equal to 4.06% beginning
      on (and including) the date of original issuance and ending on (but
      excluding) October 18, 2004 and at an annual rate for each successive
      period beginning on (and including) October 18, 2004, and each successive
      Distribution Date, and ending on (but excluding) the next succeeding
      Distribution Date equal to LIBOR plus 2.18% of the Liquidation Amount of
      the Series A Trust Securities, such rate being the rate of interest
      payable on the Series A Notes, and with respect to the Series B Trust
      Securities at an annual rate equal to 4.64% beginning on (and including)
      the date of original issuance and ending on (but excluding) January 18,
      2005 and at an annual rate for each successive period beginning on (and
      including) January 18, 2005, and each successive Distribution Date, and
      ending on (but excluding)

                                       17
<PAGE>

      the next succeeding Distribution Date equal to LIBOR plus 2.18% of the
      Liquidation Amount of the Series B Trust Securities, such rate being the
      rate of interest payable on the Series B Notes. LIBOR shall be determined
      by the Calculation Agent in accordance with Schedule A. The amount of
      Distributions payable for any period less than a full Distribution period
      shall be computed on the basis of a 360-day year and the actual number of
      days elapsed in the relevant Distribution period. The amount of
      Distributions payable for any period shall include any Additional Interest
      Amounts in respect of such period; and

            (iv)  Distributions on the Trust Securities shall be made by the
      Paying Agent from the Payment Account and shall be payable on each
      Distribution Date only to the extent that the Trust has funds then on hand
      and available in the Payment Account for the payment of such
      Distributions.

      (b)   Distributions on the Trust Securities with respect to a Distribution
Date shall be payable to the Holders thereof as they appear on the Securities
Register for the applicable series of Trust Securities at the close of business
on the relevant record date, which shall be at the close of business on the
fifteenth day (whether or not a Business Day) preceding the relevant
Distribution Date. Distributions payable on any series of Trust Securities that
are not punctually paid on any Distribution Date as a result of the Depositor
having failed to make an interest payment under the applicable series of Notes
will cease to be payable to the Person in whose name such Trust Securities are
registered on the relevant record date, and such defaulted Distributions and any
Additional Interest Amounts will instead be payable to the Person in whose name
such Trust Securities are registered on the special record date, or other
specified date for determining Holders entitled to such defaulted Distribution
and Additional Interest Amount, established in the same manner, and on the same
date, as such is established with respect to the Notes under the Indenture.

      SECTION 4.2. Redemption.

      (a)   On each Note Redemption Date and on the stated maturity (or any date
of principal repayment upon early maturity) of the Series A or Series B Notes
and on each other date on (or in respect of) which any principal on such Notes,
as applicable, is repaid, the Trust will be required to redeem a Like Amount of
Trust Securities at the Redemption Price.

      (b)   Notice of redemption shall be given by the Property Trustee by
first-class mail, postage prepaid, mailed not less than thirty (30) nor more
than sixty (60) days prior to the Redemption Date to each Holder of the series
of Trust Securities to be redeemed, at such Holder's address appearing in the
Securities Register. All notices of redemption shall state:

            (i)   the Redemption Date;

            (ii)  the Redemption Price or, if the Redemption Price cannot be
      calculated prior to the time the notice is required to be sent, the
      estimate of the Redemption Price provided pursuant to the Indenture, as
      calculated by the Depositor, together with a statement that it is an
      estimate and that the actual Redemption Price will be calculated by the
      Calculation Agent on the fifth Business Day prior to the Redemption Date
      (and if an

                                       18
<PAGE>

      estimate is provided, a further notice shall be sent of the actual
      Redemption Price on the date that such Redemption Price is calculated);

            (iii) if less than all the Outstanding Trust Securities in a given
      series are to be redeemed, the identification (and, in the case of partial
      redemption, the respective principal amounts) and Liquidation Amounts of
      the particular Trust Securities to be redeemed;

            (iv)  that on the Redemption Date, the Redemption Price will become
      due and payable upon each such Trust Security, or portion thereof, to be
      redeemed and that Distributions thereon will cease to accumulate on such
      Trust Security or such portion, as the case may be, on and after said
      date, except as provided in Section 4.2(d);

            (v)   the place or places where the Trust Securities are to be
      surrendered for the payment of the Redemption Price; and

            (vi)  such other provisions as the Property Trustee deems relevant.

      (c)   The Trust Securities (or portion thereof) redeemed on each
Redemption Date shall be redeemed at the Redemption Price with the proceeds from
the contemporaneous redemption or payment at maturity of the corresponding
series of Notes. Redemptions of the Trust Securities (or portion thereof) shall
be made and the Redemption Price shall be payable on each Redemption Date only
to the extent that the Trust has funds then on hand and available in the Payment
Account for the payment of such Redemption Price. Under the Indenture, the Notes
in a given series may be redeemed by the Depositor on any Interest Payment Date,
at the Depositor's option, on or after the fifth (5th) anniversary of the
initial Interest Payment Date for the series of Notes being redeemed, in whole
or in part, from time to time at a redemption price equal to one hundred percent
(100%) of the principal amount thereof, together, in the case of any such
redemption, with accrued interest, including any Additional Interest, to but
excluding the date fixed for redemption (the "Indenture Redemption Price");
provided, that the Depositor shall have received the prior approval of the
Federal Reserve if then required. The Notes may also be redeemed by the
Depositor, at its option, in whole but not in part, upon the occurrence of a
Capital Disqualification Event, an Investment Company Event or a Tax Event at
the Special Event Redemption Price (as set forth in the Indenture).

      (d)   If the Property Trustee gives a notice of redemption in respect of
any series of Preferred Securities, then by 10:00 A.M., New York City time, on
the Redemption Date, the Depositor shall deposit sufficient funds with the
Property Trustee to pay the Redemption Price. If such deposit has been made by
such time, then by 12:00 noon, New York City time, on the Redemption Date, the
Property Trustee will, with respect to Book-Entry Preferred Securities,
irrevocably deposit with the Depositary for such Book-Entry Preferred
Securities, to the extent available therefor, funds sufficient to pay the
applicable Redemption Price and will give such Depositary irrevocable
instructions and authority to pay the Redemption Price to the Holders of the
applicable series of Preferred Securities. With respect to Preferred Securities
that are not Book-Entry Preferred Securities, the Property Trustee will
irrevocably deposit with the Paying Agent, to the extent available therefor,
funds sufficient to pay the applicable Redemption Price and will give the Paying
Agent irrevocable instructions and authority to pay the Redemption

                                       19
<PAGE>

Price to the Holders of the applicable series of Preferred Securities upon
surrender of their Preferred Securities Certificates. Notwithstanding the
foregoing, Distributions payable on or prior to the Redemption Date for any
Trust Securities (or portion thereof) called for redemption shall be payable to
the Holders of such Trust Securities as they appear on the Securities Register
on the relevant record dates for the related Distribution Dates. If notice of
redemption shall have been given and funds deposited as required, then upon the
date of such deposit, all rights of Holders holding Trust Securities (or portion
thereof) so called for redemption will cease, except the right of such Holders
to receive the Redemption Price and any Distribution payable in respect of such
Trust Securities on or prior to the Redemption Date, but without interest, and,
in the case of a partial redemption, the right of such Holders to receive a new
Trust Security or Securities of authorized denominations, in aggregate
Liquidation Amount equal to the unredeemed portion of such Trust Security or
Securities, and such Securities (or portion thereof) called for redemption will
cease to be Outstanding. In the event that any date on which any Redemption
Price is payable is not a Business Day, then payment of the Redemption Price
payable on such date will be made on the next succeeding Business Day (and no
interest shall accrue in respect of the amounts whose payment is so delayed for
the period from and after each such date until the next succeeding Business
Day), except that, if such Business Day falls in the next succeeding calendar
year, such payment shall be made on the immediately preceding Business Day, in
each case, with the same force and effect as if made on such date. In the event
that payment of the Redemption Price in respect of any Trust Securities (or
portion thereof) called for redemption is improperly withheld or refused and not
paid either by the Trust or by the Depositor pursuant to the Guarantee
Agreement, Distributions on such Trust Securities (or portion thereof) will
continue to accumulate, as set forth in Section 4.1, from the Redemption Date
originally established by the Trust for such Trust Securities (or portion
thereof) to the date such Redemption Price is actually paid, in which case the
actual payment date will be the date fixed for redemption for purposes of
calculating the Redemption Price.

      (e)   Subject to Section 4.3(a), if less than all the Outstanding Trust
Securities in a given series are to be redeemed on a Redemption Date, then the
aggregate Liquidation Amount of Trust Securities to be redeemed shall be
allocated pro rata to the corresponding series of Common Securities and
Preferred Securities based upon the relative aggregate Liquidation Amounts of
such Common Securities and such Preferred Securities. The Preferred Securities
to be redeemed shall be redeemed on a pro rata basis based upon their respective
Liquidation Amounts not more than sixty (60) days prior to the Redemption Date
by the Property Trustee from the Outstanding Preferred Securities in that series
that were not previously called for redemption; provided, however, that with
respect to Holders that would be required to hold less than one hundred (100)
but more than zero (0) Trust Securities in the applicable series as a result of
such redemption, the Trust shall redeem Trust Securities of each such Holder so
that after such redemption such Holder shall hold either one hundred (100) Trust
Securities in that series or such Holder no longer holds any Trust Securities in
that series, and shall use such method (including, without limitation, by lot)
as the Trust shall deem fair and appropriate; and provided, further, that so
long as the Preferred Securities are Book-Entry Preferred Securities, such
selection shall be made in accordance with the Applicable Depositary Procedures
for the Preferred Securities by such Depositary. The Property Trustee shall
promptly notify the Securities Registrar in writing of the Preferred Securities
(or portion thereof) selected for redemption and, in the case of any Preferred
Securities selected for partial redemption, the

                                       20
<PAGE>

Liquidation Amount thereof to be redeemed. For all purposes of this Trust
Agreement, unless the context otherwise requires, all provisions relating to the
redemption of Preferred Securities shall relate, in the case of any Preferred
Securities redeemed or to be redeemed only in part, to the portion of the
aggregate Liquidation Amount of Preferred Securities in the series that has been
or is to be redeemed.

      (f)   The Trust in issuing the Trust Securities may use "CUSIP" numbers
(if then generally in use), and, if so, the Property Trustee shall indicate the
"CUSIP" numbers of the Trust Securities in notices of redemption and related
materials as a convenience to Holders; provided, that any such notice may state
that no representation is made as to the correctness of such numbers either as
printed on the Trust Securities or as contained in any notice of redemption and
related materials.

      SECTION 4.3. Subordination of Common Securities.

      (a)   Payment of Distributions (including any Additional Interest Amounts)
on, the Redemption Price of and the Liquidation Distribution in respect of, each
series of Trust Securities, as applicable, shall be made, pro rata among the
corresponding series of Common Securities and Preferred Securities based on the
Liquidation Amount of the corresponding Trust Securities; provided, that if on
any Distribution Date, Redemption Date or Liquidation Date an Event of Default
shall have occurred and be continuing, no payment of any Distribution (including
any Additional Interest Amounts) on, Redemption Price of or Liquidation
Distribution in respect of, any Common Security of that series, and no other
payment on account of the redemption, liquidation or other acquisition of such
Common Securities, shall be made unless payment in full in cash of all
accumulated and unpaid Distributions (including any Additional Interest Amounts)
on all Outstanding Preferred Securities in that series for all Distribution
periods terminating on or prior thereto, or in the case of payment of the
Redemption Price the full amount of such Redemption Price on all Outstanding
Preferred Securities in that series then called for redemption, or in the case
of payment of the Liquidation Distribution the full amount of such Liquidation
Distribution on all Outstanding Preferred Securities in that series, shall have
been made or provided for, and all funds immediately available to the Property
Trustee shall first be applied to the payment in full in cash of all
Distributions (including any Additional Interest Amounts) on, or the Redemption
Price of or the Liquidation Distribution in respect of, such Preferred
Securities then due and payable.

      (b)   In the case of the occurrence of any Event of Default, the Holders
of each series of Common Securities shall have no right to act with respect to
any such Event of Default under this Trust Agreement until all such Events of
Default with respect to the corresponding series of Preferred Securities have
been cured, waived or otherwise eliminated. Until all such Events of Default
under this Trust Agreement with respect to such Preferred Securities have been
so cured, waived or otherwise eliminated, the Property Trustee shall act solely
on behalf of the Holders of such Preferred Securities and not on behalf of the
Holders of such Common Securities, and only the Holders of all such Preferred
Securities will have the right to direct the Property Trustee to act on their
behalf.

                                       21
<PAGE>

      SECTION 4.4. Payment Procedures.

      Payments of Distributions (including any Additional Interest Amounts), the
Redemption Price, Liquidation Amount or any other amounts in respect of the
Preferred Securities shall be made by wire transfer at such place and to such
account at a banking institution in the United States as may be designated in
writing at least ten (10) Business Days prior to the date for payment by the
Person entitled thereto unless proper written transfer instructions have not
been received by the relevant record date, in which case such payments shall be
made by check mailed to the address of such Person as such address shall appear
in the Securities Register. If any Preferred Securities are held by a
Depositary, such Distributions thereon shall be made to the Depositary in
immediately available funds. Payments in respect of the Common Securities shall
be made in such manner as shall be mutually agreed between the Property Trustee
and the Holders of the Common Securities.

      SECTION 4.5. Withholding Tax.

      The Trust and the Administrative Trustees shall comply with all
withholding and backup withholding tax requirements under United States federal,
state and local law. The Administrative Trustees on behalf of the Trust shall
request, and the Holders shall provide to the Trust, such forms or certificates
as are necessary to establish an exemption from withholding and backup
withholding tax with respect to each Holder and any representations and forms as
shall reasonably be requested by the Administrative Trustees on behalf of the
Trust to assist it in determining the extent of, and in fulfilling, its
withholding and backup withholding tax obligations. The Administrative Trustees
shall file required forms with applicable jurisdictions and, unless an exemption
from withholding and backup withholding tax is properly established by a Holder,
shall remit amounts withheld with respect to the Holder to applicable
jurisdictions. To the extent that the Trust is required to withhold and pay over
any amounts to any jurisdiction with respect to Distributions or allocations to
any Holder, the amount withheld shall be deemed to be a Distribution in the
amount of the withholding to the Holder. In the event of any claimed
overwithholding, Holders shall be limited to an action against the applicable
jurisdiction. If the amount required to be withheld was not withheld from actual
Distributions made, the Administrative Trustees on behalf of the Trust may
reduce subsequent Distributions by the amount of such required withholding.

      SECTION 4.6. Tax Returns and Other Reports.

      (a)   The Administrative Trustees shall prepare (or cause to be prepared)
at the principal office of the Trust in the United States, as defined for
purposes of Treasury regulations section 301.7701-7, at the Depositor's expense,
and file, all United States federal, state and local tax and information returns
and reports required to be filed by or in respect of the Trust. The
Administrative Trustees shall prepare at the principal office of the Trust in
the United States, as defined for purposes of Treasury regulations section
301.7701-7, and furnish (or cause to be prepared and furnished), by January 31
in each taxable year of the Trust to each Holder all Internal Revenue Service
forms and returns required to be provided by the Trust. The Administrative
Trustees shall provide the Depositor and the Property Trustee with a copy of all
such returns and reports promptly after such filing or furnishing.

                                       22
<PAGE>

      (b)   So long as the Property Trustee is the holder of any series of
Notes, the Administrative Trustees will cause the Depositor's reports on Form FR
Y-9C to be delivered to the Property Trustee promptly following their filing
with the Federal Reserve.

      SECTION 4.7. Payment of Taxes, Duties, Etc. of the Trust.

      Upon receipt under the Notes of Additional Tax Sums and upon the written
direction of the Administrative Trustees, the Property Trustee shall promptly
pay, solely out of monies on deposit pursuant to this Trust Agreement, any
Additional Taxes imposed on the Trust by the United States or any other taxing
authority.

      SECTION 4.8. Payments under Indenture or Pursuant to Direct Actions.

      Any amount payable hereunder to any Holder of Preferred Securities shall
be reduced by the amount of any corresponding payment such Holder (or any Owner
with respect thereto) has directly received pursuant to Section 5.8 of the
Indenture or Section 6.10(b) of this Trust Agreement.

      SECTION 4.9. Exchanges.

      (a)   If at any time the Depositor or any of its Affiliates (in either
case, a "Depositor Affiliate") is the Owner or Holder of any Preferred
Securities, such Depositor Affiliate shall have the right to deliver to the
Property Trustee all or such portion of its Preferred Securities as it elects
and receive, in exchange therefor, a Like Amount of Notes in the corresponding
series. Such election (i) shall be exercisable effective on any Distribution
Date by such Depositor Affiliate delivering to the Property Trustee a written
notice of such election specifying the Liquidation Amount and series of
Preferred Securities with respect to which such election is being made and the
Distribution Date on which such exchange shall occur, which Distribution Date
shall be not less than ten (10) Business Days after the date of receipt by the
Property Trustee of such election notice and (ii) shall be conditioned upon such
Depositor Affiliate having delivered or caused to be delivered to the Property
Trustee or its designee the Preferred Securities that are the subject of such
election by 10:00 A.M. New York time, on the Distribution Date on which such
exchange is to occur. After the exchange, such Preferred Securities will be
canceled and will no longer be deemed to be Outstanding and all rights of the
Depositor Affiliate with respect to such Preferred Securities will cease.

      (b)   In the case of an exchange described in Section 4.9(a), the Property
Trustee on behalf of the Trust will, on the date of such exchange, exchange
Notes in the same series and having a principal amount equal to a proportional
amount of the aggregate Liquidation Amount of the Outstanding Common Securities
of that series, based on the ratio of the aggregate Liquidation Amount of the
Preferred Securities exchanged pursuant to Section 4.9(a) divided by the
aggregate Liquidation Amount of the Preferred Securities Outstanding in that
series immediately prior to such exchange, for such proportional amount of
Common Securities in that series held by the Depositor (which contemporaneously
shall be canceled and no longer be deemed to be Outstanding); provided, that the
Depositor delivers or causes to be delivered to the Property Trustee or its
designee the required amount of Common Securities to be exchanged by 10:00 A.M.
New York time, on the Distribution Date on which such exchange is to occur.

                                       23
<PAGE>

      SECTION 4.10. Calculation Agent.

      (a)   The Property Trustee shall initially, and for so long as it holds
any of the Notes, be the Calculation Agent for purposes of determining LIBOR for
each Distribution Date. The Calculation Agent may be removed by the
Administrative Trustees at any time. If the Calculation Agent is unable or
unwilling to act as such or is removed by the Administrative Trustees, the
Administrative Trustees will promptly appoint as a replacement Calculation Agent
the London office of a leading bank which is engaged in transactions in
three-month Eurodollar deposits in the international Eurodollar market and which
does not control or is not controlled by or under common control with the
Administrative Trustee or its Affiliates. The Calculation Agent may not resign
its duties without a successor having been duly appointed.

      (b)   The Calculation Agent shall be required to agree that, as soon as
possible after 11:00 a.m. (London time) on each LIBOR Determination Date, but in
no event later than 11:00 a.m. (London time) on the Business Day immediately
following each LIBOR Determination Date, the Calculation Agent will calculate
the interest rate (rounded to the nearest cent, with half a cent being rounded
upwards) for the related Distribution Date, and will communicate such rate and
amount to the Depositor, Trustee, each Paying Agent and the Depositary. The
Calculation Agent will also specify to the Administrative Trustee the quotations
upon which the foregoing rates and amounts are based and, in any event, the
Calculation Agent shall notify the Administrative Trustee before 5:00 p.m.
(London time) on each LIBOR Determination Date that either: (i) it has
determined or is in the process of determining the foregoing rates and amounts
or (ii) it has not determined and is not in the process of determining the
foregoing rates and amounts, together with its reasons therefor. The Calculation
Agent's determination of the foregoing rates and amounts for any Distribution
Date will (in the absence of manifest error) be final and binding upon all
parties. For the sole purpose of calculating the interest rate for the Trust
Securities, "Business Day" shall be defined as any day on which dealings in
deposits in Dollars are transacted in the London interbank market.

      SECTION 4.11. Certain Accounting Matters.

      (a)   At all times during the existence of the Trust, the Administrative
Trustees shall keep, or cause to be kept at the principal office of the Trust in
the United States, as defined for purposes of Treasury Regulations section
301.7701-7, full books of account, records and supporting documents, which shall
reflect in reasonable detail each transaction of the Trust. The books of account
shall be maintained on the accrual method of accounting, in accordance with
generally accepted accounting principles, consistently applied.

      (b)   The Administrative Trustees shall either (i), if the Depositor is
then subject to such reporting requirements, cause each Form 10-K and Form 10-Q
prepared by the Depositor and filed with the Commission in accordance with the
Exchange Act to be delivered to each Holder, with a copy to the Property
Trustee, within thirty (30) days after the filing thereof or (ii) cause to be
prepared at the principal office of the Trust in the United States, as defined
for purposes of Treasury Regulations section 301.7701-7, and delivered to each
of the Holders, with a copy to the Property Trustee, within ninety (90) days
after the end of each Fiscal Year, annual financial statements of the Trust,
including a balance sheet of the Trust as of the end of such Fiscal Year, and
the related statements of income or loss.

                                       24
<PAGE>

      (c)   The Trust shall maintain one or more bank accounts in the United
States, as defined for purposes of Treasury Regulations section 301.7701-7, in
the name and for the sole benefit of the Trust; provided, however, that all
payments of funds in respect of the Notes held by the Property Trustee shall be
made directly to the Payment Account and no other funds of the Trust shall be
deposited in the Payment Account. The sole signatories for such accounts
(including the Payment Account) shall be designated by the Property Trustee.

                                   ARTICLE V.

                                   SECURITIES

      SECTION 5.1. Initial Ownership.

      Upon the creation of the Trust and the contribution by the Depositor
referred to in Section 2.3 and until the issuance of the Trust Securities, and
at any time during which no Trust Securities are Outstanding, the Depositor
shall be the sole beneficial owner of the Trust.

      SECTION 5.2. Authorized Trust Securities.

      The Trust shall be authorized to issue two series of Preferred Securities
having an aggregate Liquidation Amount of $16,000,000 per series and two series
of Common Securities having an aggregate Liquidation Amount of $495,000 per
series.

      SECTION 5.3. Issuance of the Common Securities; Subscription and Purchase
of Notes.

      On each Closing Date, an Administrative Trustee, on behalf of the Trust,
shall execute and deliver to the Depositor Common Securities Certificates,
registered in the name of the Depositor, evidencing an aggregate of 495 Series A
or Series B Common Securities having an aggregate Liquidation Amount of
$495,000, against receipt by the Trust of the aggregate purchase price of such
Common Securities of $495,000. Contemporaneously therewith and with the sale by
the Trust to the Holders on each Closing Date of an aggregate of 16,000
Preferred Securities of a corresponding series having an aggregate Liquidation
Amount of $16,000,000, an Administrative Trustee, on behalf of the Trust, shall
subscribe for and purchase from the Depositor on each Closing Date, Notes of a
corresponding Series, to be registered in the name of the Property Trustee on
behalf of the Trust and having an aggregate principal amount equal to
$16,495,000, and, in satisfaction of the purchase price for such Notes, the
Property Trustee, on behalf of the Trust, shall deliver to the Depositor on each
Closing Date the sum of $16,495,000 (being the aggregate amount paid by the
Holders on each Closing Date for the applicable series of Preferred Securities
and the amount paid by the Depositor on each Closing Date for the applicable
series of Common Securities).

      SECTION 5.4. The Securities Certificates.

      (a)   The Preferred Securities Certificates shall be issued in minimum
denominations of $100,000 Liquidation Amount and integral multiples of $1,000 in
excess thereof, and the Common Securities Certificates shall be issued in
minimum denominations of $10,000

                                       25
<PAGE>

Liquidation Amount and integral multiples of $1,000 in excess thereof. The
Securities Certificates shall be executed on behalf of the Trust by manual or
facsimile signature of at least one Administrative Trustee. Securities
Certificates bearing the signatures of individuals who were, at the time when
such signatures shall have been affixed, authorized to sign such Securities
Certificates on behalf of the Trust shall be validly issued and entitled to the
benefits of this Trust Agreement, notwithstanding that such individuals or any
of them shall have ceased to be so authorized prior to the delivery of such
Securities Certificates or did not have such authority at the date of delivery
of such Securities Certificates.

      (b)   On each Closing Date, upon the written order of an authorized
officer of the Depositor, the Administrative Trustees shall cause Securities
Certificates to be executed on behalf of the Trust and delivered, without
further corporate action by the Depositor, in authorized denominations.

      (c)   The Preferred Securities issued to QIBs shall be, except as provided
in Section 5.6, Book-Entry Preferred Securities issued in the form of one or
more Global Preferred Securities registered in the name of the Depositary, or
its nominee and deposited with the Depositary or a custodian for the Depositary
for credit by the Depositary to the respective accounts of the Depositary
Participants thereof (or such other accounts as they may direct). The Preferred
Securities issued to a Person other than a QIB shall be issued in the form of
Definitive Preferred Securities Certificate.

      (d)   A Preferred Security shall not be valid until authenticated by the
manual signature of an Authorized Officer of the Property Trustee. Such
signature shall be conclusive evidence that the Preferred Security has been
authenticated under this Trust Agreement. Upon written order of the Trust signed
by one Administrative Trustee, the Property Trustee shall authenticate the
Preferred Securities for original issue. The Property Trustee may appoint an
authenticating agent that is a U.S. Person acceptable to the Trust to
authenticate the Preferred Securities. A Common Security need not be so
authenticated and shall be valid upon execution by one or more Administrative
Trustees. The form of this certificate of authentication can be found in Section
5.13.

      SECTION 5.5. Rights of Holders.

      The Trust Securities shall have no preemptive or similar rights and when
issued and delivered to Holders against payment of the purchase price therefor
will be fully paid and non-assessable by the Trust. Except as provided in
Section 5.11(b), the Holders of the Trust Securities, in their capacities as
such, shall be entitled to the same limitation of personal liability extended to
stockholders of private corporations for profit organized under the General
Corporation Law of the State of Delaware.

      SECTION 5.6. Book-Entry Preferred Securities.

      (a)   A Global Preferred Security may be exchanged, in whole or in part,
for Definitive Preferred Securities Certificates registered in the names of the
Owners only if such exchange complies with Section 5.7 and (i) the Depositary
advises the Administrative Trustees and the Property Trustee in writing that the
Depositary is no longer willing or able properly to discharge

                                       26
<PAGE>

its responsibilities with respect to the Global Preferred Security, and no
qualified successor is appointed by the Administrative Trustees within ninety
(90) days of receipt of such notice, (ii) the Depositary ceases to be a clearing
agency registered under the Exchange Act and the Administrative Trustees fail to
appoint a qualified successor within ninety (90) days of obtaining knowledge of
such event, (iii) the Administrative Trustees at their option advise the
Property Trustee in writing that the Trust elects to terminate the book-entry
system through the Depositary or (iv) a Note Event of Default has occurred and
is continuing. Upon the occurrence of any event specified in clause (i), (ii),
(iii) or (iv) above, the Administrative Trustees shall notify the Depositary and
instruct the Depositary to notify all Owners of Book-Entry Preferred Securities
of an affected series, the Delaware Trustee and the Property Trustee of the
occurrence of such event and of the availability of the Definitive Preferred
Securities Certificates to Owners of Preferred Securities requesting the same.
Upon the issuance of Definitive Preferred Securities Certificates, the Trustees
shall recognize the Holders of the Definitive Preferred Securities Certificates
as Holders. Notwithstanding the foregoing, if an Owner of a beneficial interest
in a Global Preferred Security wishes at any time to transfer an interest in
such Global Preferred Security to a Person other than a QIB, such transfer shall
be effected, subject to the Applicable Depositary Procedures, in accordance with
the provisions of this Section 5.6 and Section 5.7, and the transferee shall
receive a Definitive Preferred Securities Certificate in connection with such
transfer. A holder of a Definitive Preferred Securities Certificate that is a
QIB may, upon request, and in accordance with the provisions of this Section 5.6
and Section 5.7, exchange such Definitive Preferred Securities Certificate for a
beneficial interest in a Global Preferred Security.

      (b)   If any Global Preferred Security is to be exchanged for Definitive
Preferred Securities Certificates or canceled in part, or if any Definitive
Preferred Securities Certificate is to be exchanged in whole or in part for any
Global Preferred Security, then either (i) such Global Preferred Security shall
be so surrendered for exchange or cancellation as provided in this Article V or
(ii) the aggregate Liquidation Amount represented by such Global Preferred
Security shall be reduced, subject to Section 5.4, or increased by an amount
equal to the Liquidation Amount represented by that portion of the Global
Preferred Security to be so exchanged or canceled, or equal to the Liquidation
Amount represented by such Definitive Preferred Securities Certificates to be so
exchanged for any Global Preferred Security, as the case may be, by means of an
appropriate adjustment made on the records of the Securities Registrar,
whereupon the Property Trustee, in accordance with the Applicable Depositary
Procedures, shall instruct the Depositary or its authorized representative to
make a corresponding adjustment to its records. Upon any such surrender to the
Administrative Trustees or the Securities Registrar of any Global Preferred
Security or Securities by the Depositary, accompanied by registration
instructions, the Administrative Trustees, or any one of them, shall execute the
Definitive Preferred Securities Certificates in accordance with the instructions
of the Depositary. None of the Securities Registrar or the Trustees shall be
liable for any delay in delivery of such instructions and may conclusively rely
on, and shall be fully protected in relying on, such instructions.

      (c)   Every Securities Certificate executed and delivered upon
registration or transfer of, or in exchange for or in lieu of, a Global
Preferred Security or any portion thereof shall be executed and delivered in the
form of, and shall be, a Global Preferred Security, unless such Securities
Certificate is registered in the name of a Person other than the Depositary for
such Global Preferred Security or a nominee thereof.

                                       27
<PAGE>

      (d)   The Depositary or its nominee, as registered owner of a Global
Preferred Security, shall be the Holder of such Global Preferred Security for
all purposes under this Trust Agreement and the Global Preferred Security, and
Owners with respect to a Global Preferred Security shall hold such interests
pursuant to the Applicable Depositary Procedures. The Securities Registrar and
the Trustees shall be entitled to deal with the Depositary for all purposes of
this Trust Agreement relating to the Global Preferred Securities (including the
payment of the Liquidation Amount of and Distributions on the Book-Entry
Preferred Securities represented thereby and the giving of instructions or
directions by Owners of Book-Entry Preferred Securities represented thereby and
the giving of notices) as the sole Holder of the Book-Entry Preferred Securities
represented thereby and shall have no obligations to the Owners thereof. None of
the Trustees nor the Securities Registrar shall have any liability in respect of
any transfers effected by the Depositary.

      (e)   The rights of the Owners of the Book-Entry Preferred Securities
shall be exercised only through the Depositary and shall be limited to those
established by law, the Applicable Depositary Procedures and agreements between
such Owners and the Depositary and/or the Depositary Participants; provided,
solely for the purpose of determining whether the Holders of the requisite
amount of Preferred Securities have voted on any matter provided for in this
Trust Agreement, to the extent that Preferred Securities are represented by a
Global Preferred Security, the Trustees may conclusively rely on, and shall be
fully protected in relying on, any written instrument (including a proxy)
delivered to the Property Trustee by the Depositary setting forth the Owners'
votes or assigning the right to vote on any matter to any other Persons either
in whole or in part. To the extent that Preferred Securities are represented by
a Global Preferred Security, the initial Depositary will make book-entry
transfers among the Depositary Participants and receive and transmit payments on
the Preferred Securities that are represented by a Global Preferred Security to
such Depositary Participants, and none of the Depositor or the Trustees shall
have any responsibility or obligation with respect thereto.

      (f)   To the extent that a notice or other communication to the Holders is
required under this Trust Agreement, for so long as Preferred Securities are
represented by a Global Preferred Security, the Trustees shall give all such
notices and communications to the Depositary, and shall have no obligations to
the Owners.

      SECTION 5.7. Registration of Transfer and Exchange of Preferred Securities
Certificates.

      (a)   The Property Trustee shall keep or cause to be kept, at the
Corporate Trust Office, a register or registers (the "Securities Register") in
which the registrar and transfer agent with respect to the Trust Securities (the
"Securities Registrar"), subject to such reasonable regulations as it may
prescribe, shall provide for the registration of Preferred Securities
Certificates and Common Securities Certificates and registration of transfers
and exchanges of Preferred Securities Certificates as herein provided. The
Person acting as the Property Trustee shall at all times also be the Securities
Registrar. The provisions of Article VIII shall apply to the Property Trustee in
its role as Securities Registrar.

      (b)   Upon surrender for registration of transfer of any Preferred
Securities Certificate at the office or agency maintained pursuant to Section
5.7(f), the Administrative Trustees or any

                                       28
<PAGE>

one of them shall execute by manual or facsimile signature and deliver to the
Property Trustee, and the Property Trustee shall authenticate and deliver, in
the name of the designated transferee or transferees, one or more new Preferred
Securities Certificates in authorized denominations of a like aggregate
Liquidation Amount as may be required by this Trust Agreement dated the date of
execution by such Administrative Trustee or Trustees. At the option of a Holder,
Preferred Securities Certificates may be exchanged for other Preferred
Securities Certificates of the same series in authorized denominations and of a
like aggregate Liquidation Amount upon surrender of the Preferred Securities
Certificate to be exchanged at the office or agency maintained pursuant to
Section 5.7(f). Whenever any Preferred Securities Certificates are so
surrendered for exchange, the Administrative Trustees or any one of them shall
execute by manual or facsimile signature and deliver to the Property Trustee,
and the Property Trustee shall authenticate and deliver, the Preferred
Securities Certificates that the Holder making the exchange is entitled to
receive.

      (c)   The Securities Registrar shall not be required, (i) to issue,
register the transfer of or exchange any Preferred Security during a period
beginning at the opening of business fifteen (15) days before the day of
selection for redemption of such Preferred Securities pursuant to Article IV and
ending at the close of business on the day of mailing of the notice of
redemption or (ii) to register the transfer of or exchange any Preferred
Security so selected for redemption in whole or in part, except, in the case of
any such Preferred Security to be redeemed in part, any portion thereof not to
be redeemed.

      (d)   Every Preferred Securities Certificate presented or surrendered for
registration of transfer or exchange shall be duly endorsed, or be accompanied
by a written instrument of transfer in form satisfactory to the Securities
Registrar duly executed by the Holder or such Holder's attorney duly authorized
in writing and (i) if such Preferred Securities Certificate is being transferred
otherwise than to a QIB, accompanied by a certificate of the transferee
substantially in the form set forth as Exhibit E hereto or (ii) if such
Preferred Securities Certificate is being transferred to a QIB, accompanied by a
certificate of the transferor substantially in the form set forth as Exhibit F
hereto.

      (e)   No service charge shall be made for any registration of transfer or
exchange of Preferred Securities Certificates, but the Property Trustee on
behalf of the Trust may require payment of a sum sufficient to cover any tax or
governmental charge that may be imposed in connection with any transfer or
exchange of Preferred Securities Certificates.

      (f)   The Administrative Trustees shall designate an office or offices or
agency or agencies where Preferred Securities Certificates may be surrendered
for registration of transfer or exchange, and initially designate the Corporate
Trust Office as its office and agency for such purposes. The Administrative
Trustees shall give prompt written notice to the Depositor, the Property Trustee
and to the Holders of any change in the location of any such office or agency.

      SECTION 5.8. Mutilated, Destroyed, Lost or Stolen Securities Certificates.

      (a)   If any mutilated Securities Certificate shall be surrendered to the
Securities Registrar together with such security or indemnity as may be required
by the Securities Registrar and the Administrative Trustees to save each of them
harmless, the Administrative Trustees, or

                                       29
<PAGE>

any one of them, on behalf of the Trust, shall execute and make available for
delivery in exchange therefor a new Securities Certificate of like class, tenor
and denomination.

      (b)   If the Securities Registrar shall receive evidence to its
satisfaction of the destruction, loss or theft of any Securities Certificate and
there shall be delivered to the Securities Registrar and the Administrative
Trustees such security or indemnity as may be required by them to save each of
them harmless, then in the absence of notice that such Securities Certificate
shall have been acquired by a protected purchaser, the Administrative Trustees,
or any one of them, on behalf of the Trust, shall execute and make available for
delivery, and, with respect to Preferred Securities, the Property Trustee shall
authenticate, in exchange for or in lieu of any such destroyed, lost or stolen
Securities Certificate, a new Securities Certificate of like class, tenor and
denomination.

      (c)   In connection with the issuance of any new Securities Certificate
under this Section 5.8, the Administrative Trustees or the Securities Registrar
may require the payment of a sum sufficient to cover any tax or other
governmental charge that may be imposed in connection therewith.

      (d)   Any duplicate Securities Certificate issued pursuant to this Section
5.8 shall constitute conclusive evidence of an undivided beneficial interest in
the assets of the Trust corresponding to that evidenced by the mutilated, lost,
stolen or destroyed Securities Certificate, as if originally issued, whether or
not the lost, stolen or destroyed Securities Certificate shall be found at any
time.

      (e)   If any such mutilated, destroyed, lost or stolen Security has become
or is about to become due and payable, the Depositor in its discretion may,
instead of issuing a new Security, pay such Security.

      (f)   The provisions of this Section 5.8 are exclusive and shall preclude
(to the extent lawful) all other rights and remedies with respect to the
replacement of mutilated, destroyed, lost or stolen Securities Certificates.

      SECTION 5.9. Persons Deemed Holders.

      The Trustees and the Securities Registrar shall each treat the Person in
whose name any Securities Certificate shall be registered in the Securities
Register as the owner of such Securities Certificate for the purpose of
receiving Distributions and for all other purposes whatsoever, and none of the
Trustees and the Securities Registrar shall be bound by any notice to the
contrary.

      SECTION 5.10. Cancellation.

      All Preferred Securities Certificates surrendered for registration of
transfer or exchange or for payment shall, if surrendered to any Person other
than the Property Trustee, be delivered to the Property Trustee, and any such
Preferred Securities Certificates and Preferred Securities Certificates
surrendered directly to the Property Trustee for any such purpose shall be
promptly canceled by it. The Administrative Trustees may at any time deliver to
the Property Trustee for cancellation any Preferred Securities Certificates
previously delivered hereunder that the

                                       30
<PAGE>

Administrative Trustees may have acquired in any manner whatsoever, and all
Preferred Securities Certificates so delivered shall be promptly canceled by the
Property Trustee. No Preferred Securities Certificates shall be executed and
delivered in lieu of or in exchange for any Preferred Securities Certificates
canceled as provided in this Section 5.10, except as expressly permitted by this
Trust Agreement. All canceled Preferred Securities Certificates shall be
disposed of by the Property Trustee in accordance with its customary practices
and the Property Trustee shall deliver to the Administrative Trustees a
certificate of such disposition.

      SECTION 5.11. Ownership of Common Securities by Depositor.

      (a)   On the Closing Dates, the Depositor shall acquire, and thereafter
shall retain, beneficial and record ownership of the Common Securities. Neither
the Depositor nor any successor Holder of the Common Securities may transfer
less than all the Common Securities, and the Depositor or any such successor
Holder may transfer such Common Securities only (i) in connection with a
consolidation or merger of the Depositor into another Person, or any conveyance,
transfer or lease by the Depositor of its properties and assets substantially as
an entirety to any Person (in which event such Common Securities will be
transferred to such surviving entity, transferee or lessee, as the case may be),
pursuant to Section 8.1 of the Indenture or (ii) to the Depositor or an
Affiliate of the Depositor, in each such case in compliance with applicable law
(including the Securities Act, and applicable state securities and blue sky
laws). To the fullest extent permitted by law, any attempted transfer of the
Common Securities other than as set forth in the immediately preceding sentence
shall be void. The Administrative Trustees shall cause each Common Securities
Certificate issued to the Depositor to contain a legend stating substantially
"THIS CERTIFICATE IS NOT TRANSFERABLE EXCEPT IN COMPLIANCE WITH APPLICABLE LAW
AND SECTION 5.11 OF THE TRUST AGREEMENT."

      (b)   Any Holder of the Common Securities shall be liable for the debts
and obligations of the Trust in the manner and to the extent set forth with
respect to the Depositor and agrees that it shall be subject to all liabilities
to which the Depositor may be subject and, prior to becoming such a Holder,
shall deliver to the Administrative Trustees an instrument of assumption
satisfactory to such Trustees.

      SECTION 5.12. Restricted Legends.

      (a)   Each Preferred Security Certificate shall bear a legend in
substantially the following form:

      "THIS PREFERRED SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE
      TRUST AGREEMENT HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF
      THE DEPOSITORY TRUST COMPANY ("DTC") OR A NOMINEE OF DTC. THIS PREFERRED
      SECURITY IS EXCHANGEABLE FOR SECURITIES REGISTERED IN THE NAME OF A PERSON
      OTHER THAN DTC OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES DESCRIBED
      IN THE TRUST AGREEMENT, AND NO TRANSFER OF THIS PREFERRED SECURITY (OTHER
      THAN A TRANSFER OF THIS PREFERRED SECURITY AS A WHOLE BY DTC TO A NOMINEE
      OF DTC OR BY A NOMINEE OF DTC TO DTC

                                       31
<PAGE>

      OR ANOTHER NOMINEE OF DTC) MAY BE REGISTERED EXCEPT IN LIMITED
      CIRCUMSTANCES.

      UNLESS THIS PREFERRED SECURITY IS PRESENTED BY AN AUTHORIZED
      REPRESENTATIVE OF DTC TO MERCANTILE BANK CAPITAL TRUST I OR ITS AGENT FOR
      REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY PREFERRED SECURITY
      ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS
      REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT HEREON
      IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN
      AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE
      HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS
      THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

      THE PREFERRED SECURITIES REPRESENTED BY THIS CERTIFICATE WERE ORIGINALLY
      ISSUED IN A TRANSACTION EXEMPT FROM REGISTRATION UNDER THE SECURITIES ACT
      OF 1933, AS AMENDED (THE "SECURITIES ACT"), AND SUCH PREFERRED SECURITIES
      OR ANY INTEREST THEREIN, MAY NOT BE OFFERED, SOLD OR OTHERWISE TRANSFERRED
      IN THE ABSENCE OF SUCH REGISTRATION OR AN APPLICABLE EXEMPTION THEREFROM.
      EACH PURCHASER OF ANY PREFERRED SECURITIES IS HEREBY NOTIFIED THAT THE
      SELLER OF THE PREFERRED SECURITIES MAY BE RELYING ON THE EXEMPTION FROM
      THE PROVISIONS OF SECTION 5 OF THE SECURITIES ACT PROVIDED BY RULE 144A
      UNDER THE SECURITIES ACT.

      THE HOLDER OF THE PREFERRED SECURITIES REPRESENTED BY THIS CERTIFICATE
      AGREES FOR THE BENEFIT OF THE TRUST AND THE DEPOSITOR THAT (A) SUCH
      PREFERRED SECURITIES MAY BE OFFERED, RESOLD OR OTHERWISE TRANSFERRED ONLY
      (I) TO THE TRUST, (II) TO A PERSON WHOM THE SELLER REASONABLY BELIEVES IS
      A "QUALIFIED INSTITUTIONAL BUYER" (AS DEFINED IN RULE 144A UNDER THE
      SECURITIES ACT) IN A TRANSACTION MEETING THE REQUIREMENTS OF RULE 144A,
      (III) TO AN INSTITUTIONAL "ACCREDITED INVESTOR" WITHIN THE MEANING OF
      SUBPARAGRAPH (a) (1), (2), (3) OR (7) OF RULE 501 UNDER THE SECURITIES ACT
      THAT IS ACQUIRING THE SECURITY FOR ITS OWN ACCOUNT, OR FOR THE ACCOUNT OF
      AN "ACCREDITED INVESTOR," FOR INVESTMENT PURPOSES AND NOT WITH A VIEW TO,
      OR FOR OFFER OR SALE IN CONNECTION WITH, ANY DISTRIBUTION IN VIOLATION OF
      THE SECURITIES ACT, (IV) PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT
      UNDER THE SECURITIES ACT OR (V) PURSUANT TO AN EXEMPTION FROM THE
      SECURITIES ACT, IN EACH CASE IN ACCORDANCE WITH ANY APPLICABLE SECURITIES
      LAWS OF ANY STATE OF THE UNITED STATES OR ANY OTHER APPLICABLE
      JURISDICTION AND, IN THE CASE OF (III) OR (V), SUBJECT TO THE RIGHT OF THE
      TRUST AND THE DEPOSITOR TO REQUIRE AN OPINION OF COUNSEL AND OTHER
      INFORMATION

                                       32
<PAGE>

      SATISFACTORY TO EACH OF THEM AND (B) THE HOLDER WILL NOTIFY ANY PURCHASER
      OF ANY PREFERRED SECURITIES FROM IT OF THE RESALE RESTRICTIONS REFERRED TO
      IN (A) ABOVE.

      THE PREFERRED SECURITIES WILL BE ISSUED AND MAY BE TRANSFERRED ONLY IN
      BLOCKS HAVING AN AGGREGATE LIQUIDATION AMOUNT OF NOT LESS THAN $100,000.
      TO THE FULLEST EXTENT PERMITTED BY LAW, ANY ATTEMPTED TRANSFER OF
      PREFERRED SECURITIES, OR ANY INTEREST THEREIN, IN A BLOCK HAVING AN
      AGGREGATE LIQUIDATION AMOUNT OF LESS THAN $100,000 AND MULTIPLES OF $1,000
      IN EXCESS THEREOF SHALL BE DEEMED TO BE VOID AND OF NO LEGAL EFFECT
      WHATSOEVER. TO THE FULLEST EXTENT PERMITTED BY LAW, ANY SUCH PURPORTED
      TRANSFEREE SHALL BE DEEMED NOT TO BE THE HOLDER OF SUCH PREFERRED
      SECURITIES FOR ANY PURPOSE, INCLUDING, BUT NOT LIMITED TO, THE RECEIPT OF
      LIQUIDATION AMOUNT OF OR DISTRIBUTIONS ON SUCH PREFERRED SECURITIES, OR
      ANY INTEREST THEREIN, AND SUCH PURPORTED TRANSFEREE SHALL BE DEEMED TO
      HAVE NO INTEREST WHATSOEVER IN SUCH PREFERRED SECURITIES.

      THE HOLDER OF THIS SECURITY, OR ANY INTEREST THEREIN, BY ITS ACCEPTANCE
      HEREOF OR THEREOF ALSO AGREES, REPRESENTS AND WARRANTS THAT IT IS NOT AN
      EMPLOYEE BENEFIT, INDIVIDUAL RETIREMENT ACCOUNT OR OTHER PLAN OR
      ARRANGEMENT SUBJECT TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY
      ACT OF 1974, AS AMENDED ("ERISA"), OR SECTION 4975 OF THE INTERNAL REVENUE
      CODE OF 1986, AS AMENDED (THE "CODE") (EACH A "PLAN"), OR AN ENTITY WHOSE
      UNDERLYING ASSETS INCLUDE "PLAN ASSETS" BY REASON OF ANY PLAN'S INVESTMENT
      IN THE ENTITY, AND NO PERSON INVESTING "PLAN ASSETS" OF ANY PLAN MAY
      ACQUIRE OR HOLD THIS PREFERRED SECURITY OR ANY INTEREST THEREIN, UNLESS
      SUCH PURCHASER OR HOLDER IS ELIGIBLE FOR THE EXEMPTIVE RELIEF AVAILABLE
      UNDER U.S. DEPARTMENT OF LABOR PROHIBITED TRANSACTION CLASS EXEMPTION
      96-23, 95-60, 91-38, 90-1 OR 84-14 OR ANOTHER APPLICABLE EXEMPTION OR ITS
      PURCHASE AND HOLDING OF THIS SECURITY, OR ANY INTEREST THEREIN, IS NOT
      PROHIBITED BY SECTION 406 OF ERISA OR SECTION 4975 OF THE CODE WITH
      RESPECT TO SUCH PURCHASE OR HOLDING. ANY PURCHASER OR HOLDER OF THE
      PREFERRED SECURITIES OR ANY INTEREST THEREIN WILL BE DEEMED TO HAVE
      REPRESENTED BY ITS PURCHASE AND HOLDING THEREOF THAT EITHER (i) IT IS NOT
      AN EMPLOYEE BENEFIT PLAN WITHIN THE MEANING OF SECTION 3(3) OF ERISA, OR A
      PLAN TO WHICH SECTION 4975 OF THE CODE IS APPLICABLE, A TRUSTEE OR OTHER
      PERSON ACTING ON BEHALF OF AN EMPLOYEE BENEFIT PLAN OR PLAN, OR ANY OTHER
      PERSON OR ENTITY USING THE ASSETS OF ANY EMPLOYEE BENEFIT PLAN OR PLAN TO
      FINANCE SUCH PURCHASE, OR (ii) SUCH PURCHASE OR HOLDING WILL NOT RESULT IN
      A PROHIBITED TRANSACTION UNDER SECTION 406 OF ERISA OR

                                       33
<PAGE>

      SECTION 4975 OF THE CODE FOR WHICH THERE IS NO APPLICABLE STATUTORY OR
      ADMINISTRATIVE EXEMPTION.

      THIS OBLIGATION IS NOT A DEPOSIT AND IS NOT INSURED BY THE UNITED STATES
      OR ANY AGENCY OR FUND OF THE UNITED STATES, INCLUDING THE FEDERAL DEPOSIT
      INSURANCE CORPORATION (THE "FDIC")."

      (b)   The above legend shall not be removed from any of the Preferred
Securities Certificates unless there is delivered to the Property Trustee and
the Depositor satisfactory evidence, which may include an opinion of counsel, as
may be reasonably required to ensure that any future transfers thereof may be
made without restriction under the provisions of the Securities Act and other
applicable law. Upon provision of such satisfactory evidence, one or more of the
Administrative Trustees on behalf of the Trust shall execute and deliver to the
Property Trustee, and the Property Trustee shall deliver, at the written
direction of the Administrative Trustees and the Depositor, Preferred Securities
Certificates that do not bear the legend.

      SECTION 5.13. Form of Certificate of Authentication.

      The Property Trustee's certificate of authentication shall be in
substantially the following form:

      This is one of the Preferred Securities referred to in the
within-mentioned Trust Agreement.

Dated:                                          Wilmington Trust Company, not in
                                                its individual capacity, but
                                                solely as Property Trustee

                                                By: ____________________________
                                                    Authorized officer

                                   ARTICLE VI.

                        MEETINGS; VOTING; ACTS OF HOLDERS

      SECTION 6.1. Notice of Meetings.

      Notice of all meetings of the Holders of a series of Preferred Securities,
stating the time, place and purpose of the meeting, shall be given by the
Property Trustee pursuant to Section 11.8 to each Holder of the applicable
series of Preferred Securities, at such Holder's registered address, at least
fifteen (15) days and not more than ninety (90) days before the meeting. At any
such meeting, any business properly before the meeting may be so considered
whether or not stated in the notice of the meeting. Any adjourned meeting may be
held as adjourned without further notice.

                                       34
<PAGE>

      SECTION 6.2. Meetings of Holders of the Preferred Securities.

      (a)   No annual meeting of Holders is required to be held. The Property
Trustee, however, shall call a meeting of the Holders of a given series of
Preferred Securities to vote on any matter upon the written request of the
Holders of at least twenty five percent (25%) in aggregate Liquidation Amount of
the Outstanding Preferred Securities of that series and the Administrative
Trustees or the Property Trustee may, at any time in their discretion, call a
meeting of the Holders of any series of Preferred Securities to vote on any
matters as to which such Holders are entitled to vote.

      (b)   The Holders of at least a Majority in Liquidation Amount of the
applicable series of Preferred Securities, present in person or by proxy, shall
constitute a quorum at any meeting of the Holders of such Preferred Securities.

      (c)   If a quorum is present at a meeting, an affirmative vote by the
Holders present, in person or by proxy, holding Preferred Securities
representing at least a Majority in Liquidation Amount of the series of
Preferred Securities held by the Holders present, either in person or by proxy,
at such meeting shall constitute the action of the Holders of that series of
Preferred Securities, unless this Trust Agreement requires a lesser or greater
number of affirmative votes.

      SECTION 6.3. Voting Rights.

      Holders shall be entitled to one vote for each $10,000 of Liquidation
Amount represented by their Outstanding Trust Securities in respect of any
matter as to which such Holders are entitled to vote.

      SECTION 6.4. Proxies.

      At any meeting of Holders, any Holder entitled to vote thereat may vote by
proxy, provided, that no proxy shall be voted at any meeting unless it shall
have been placed on file with the Administrative Trustees, or with such other
officer or agent of the Trust as the Administrative Trustees may direct, for
verification prior to the time at which such vote shall be taken. Pursuant to a
resolution of the Property Trustee, proxies may be solicited in the name of the
Property Trustee or one or more officers of the Property Trustee. Only Holders
of record shall be entitled to vote. When Trust Securities are held jointly by
several Persons, any one of them may vote at any meeting in person or by proxy
in respect of such Trust Securities, but if more than one of them shall be
present at such meeting in person or by proxy, and such joint owners or their
proxies so present disagree as to any vote to be cast, such vote shall not be
received in respect of such Trust Securities. A proxy purporting to be executed
by or on behalf of a Holder shall be deemed valid unless challenged at or prior
to its exercise, and the burden of proving invalidity shall rest on the
challenger. No proxy shall be valid more than three years after its date of
execution.

      SECTION 6.5. Holder Action by Written Consent.

      Any action that may be taken by Holders at a meeting may be taken without
a meeting and without prior notice if Holders holding at least a Majority in
Liquidation Amount of all

                                       35
<PAGE>

Preferred Securities in a given series entitled to vote in respect of such
action (or such lesser or greater proportion thereof as shall be required by any
other provision of this Trust Agreement) shall consent to the action in writing;
provided, that notice of such action is promptly provided to the Holders of
Preferred Securities in that series that did not consent to such action. Any
action that may be taken by the Holders of all the Common Securities in a given
series may be taken without a meeting and without prior notice if such Holders
shall consent to the action in writing.

      SECTION 6.6. Record Date for Voting and Other Purposes.

      Except as provided in Section 6.10(a), for the purposes of determining the
Holders who are entitled to notice of and to vote at any meeting or to act by
written consent, or to participate in any distribution on the Trust Securities
in respect of which a record date is not otherwise provided for in this Trust
Agreement, or for the purpose of any other action, the Administrative Trustees
may from time to time fix a date, not more than ninety (90) days prior to the
date of any meeting of Holders or the payment of a Distribution or other action,
as the case may be, as a record date for the determination of the identity of
the Holders of record for such purposes.

      SECTION 6.7. Acts of Holders.

      (a)   Any request, demand, authorization, direction, notice, consent,
waiver or other action provided or permitted by this Trust Agreement to be
given, made or taken by Holders may be embodied in and evidenced by one or more
instruments of substantially similar tenor signed by such Holders in person or
by an agent thereof duly appointed in writing; and, except as otherwise
expressly provided herein, such action shall become effective when such
instrument or instruments are delivered to an Administrative Trustee. Such
instrument or instruments (and the action embodied therein and evidenced
thereby) are herein sometimes referred to as the "Act" of the Holders signing
such instrument or instruments. Proof of execution of any such instrument or of
a writing appointing any such agent shall be sufficient for any purpose of this
Trust Agreement and conclusive in favor of the Trustees, if made in the manner
provided in this Section 6.7.

      (b)   The fact and date of the execution by any Person of any such
instrument or writing may be proved by the affidavit of a witness of such
execution or by a certificate of a notary public or other officer authorized by
law to take acknowledgments of deeds, certifying that the individual signing
such instrument or writing acknowledged to him the execution thereof. Where such
execution is by a signer acting in a capacity other than such signer's
individual capacity, such certificate or affidavit shall also constitute
sufficient proof of such signer's authority. The fact and date of the execution
of any such instrument or writing, or the authority of the Person executing the
same, may also be proved in any other manner that any Trustee receiving the same
deems sufficient.

      (c)   The ownership of Trust Securities shall be proved by the Securities
Register.

      (d)   Any request, demand, authorization, direction, notice, consent,
waiver or other Act of the Holder of any Trust Security shall bind every future
Holder of the same Trust Security and the Holder of every Trust Security issued
upon the registration of transfer thereof or in exchange therefor or in lieu
thereof in respect of anything done, omitted or suffered to be done

                                       36
<PAGE>

by the Trustees, the Administrative Trustees or the Trust in reliance thereon,
whether or not notation of such action is made upon such Trust Security.

      (e)   Without limiting the foregoing, a Holder entitled hereunder to take
any action hereunder with regard to any particular Trust Security may do so with
regard to all or any part of the Liquidation Amount of such Trust Security or by
one or more duly appointed agents each of which may do so pursuant to such
appointment with regard to all or any part of such Liquidation Amount.

      (f)   If any dispute shall arise among the Holders or the Trustees with
respect to the authenticity, validity or binding nature of any request, demand,
authorization, direction, notice, consent, waiver or other Act of such Holder or
Trustee under this Article VI, then the determination of such matter by the
Property Trustee shall be conclusive with respect to such matter.

      SECTION 6.8. Inspection of Records.

      Upon reasonable written notice to the Administrative Trustees and the
Property Trustee, the records of the Trust shall be open to inspection by any
Holder during normal business hours for any purpose reasonably related to such
Holder's interest as a Holder.

      SECTION 6.9. Limitations on Voting Rights.

      (a)   Except as expressly provided in this Trust Agreement and in the
Indenture and as otherwise required by law, no Holder of Preferred Securities
shall have any right to vote or in any manner otherwise control the
administration, operation and management of the Trust or the obligations of the
parties hereto, nor shall anything herein set forth, or contained in the terms
of the Securities Certificates, be construed so as to constitute the Holders
from time to time as partners or members of an association.

      (b)   So long as any Notes are held by the Property Trustee on behalf of
the Trust, the Property Trustee shall not (i) direct the time, method and place
of conducting any proceeding for any remedy available to the Note Trustee, or
exercise any trust or power conferred on the Property Trustee with respect to
the Notes, (ii) waive any past default that may be waived under Section 5.13 of
the Indenture, (iii) exercise any right to rescind or annul a declaration that
the principal of all the Notes in a given series shall be due and payable or
(iv) consent to any amendment, modification or termination of the Indenture or
any series of Notes, where such consent shall be required, without, in each
case, obtaining the prior approval of the Holders of at least a Majority in
Liquidation Amount of the corresponding series of Preferred Securities;
provided, that where a consent under the Indenture would require the consent of
each holder of Notes (or each Holder of Preferred Securities) affected thereby,
no such consent shall be given by the Property Trustee without the prior written
consent of each such Holder of Preferred Securities. The Property Trustee shall
not revoke any action previously authorized or approved by a vote of the Holders
of any series of Preferred Securities, except by a subsequent vote of the
Holders of that series of Preferred Securities. In addition to obtaining the
foregoing approvals of the Holders of the Preferred Securities, prior to taking
any of the foregoing actions, the Property Trustee shall, at the expense of the
Depositor, obtain an Opinion of Counsel experienced in such

                                       37
<PAGE>

matters to the effect that such action shall not cause the Trust to be taxable
as a corporation or classified as other than a grantor trust for United States
federal income tax purposes.

      (c)   If any proposed amendment to the Trust Agreement provides for, or
the Trustees otherwise propose to effect, any action that would adversely affect
in any material respect the powers, preferences or special rights of any series
of Preferred Securities, whether by way of amendment to the Trust Agreement or
otherwise, then the Holders of the Outstanding Preferred Securities in the
affected series, as a class, will be entitled to vote on such amendment or
proposal and such amendment or proposal shall not be effective except with the
approval of Holders of at least a Majority in Liquidation Amount of the
Preferred Securities of that series. If such a proposed action or amendment
would provide for or otherwise propose to effect the dissolution, winding-up or
termination of the Trust, other than pursuant to the terms of this Trust
Agreement, then the Holders of Outstanding Preferred Securities, voting together
as a class, will be entitled to vote on such amendment or proposal and such
amendment or proposal shall not be effective except with the approval of the
Holders of at least a Majority in Liquidation Amount of the Preferred
Securities. Notwithstanding any other provision of this Trust Agreement, no
amendment to this Trust Agreement may be made if, as a result of such amendment,
it would cause the Trust to be taxable as a corporation or classified as other
than a grantor trust for United States federal income tax purposes.

      SECTION 6.10. Acceleration of Maturity; Rescission of Annulment; Waivers
of Past Defaults.

      (a)   For so long as any Preferred Securities remain Outstanding, if, upon
a Note Event of Default pursuant to paragraphs (c), (e) or (f) of Section 5.1 of
the Indenture, the Note Trustee fails or the holders of not less than twenty
five percent (25%) in principal amount of the outstanding Notes in a given
series fail to declare the principal of all of the Notes to be immediately due
and payable, the Holders of at least twenty-five percent (25%) in Liquidation
Amount of the Preferred Securities of the corresponding series then Outstanding
shall have the right to make such declaration by a notice in writing to the
Property Trustee, the Depositor and the Note Trustee. At any time after a
declaration of acceleration with respect to a series of Notes has been made and
before a judgment or decree for payment of the money due has been obtained by
the Note Trustee as provided in the Indenture, the Holders of at least a
Majority in Liquidation Amount of the corresponding series of Preferred
Securities, by written notice to the Property Trustee, the Depositor and the
Note Trustee, may rescind and annul such declaration and its consequences if:

            (i)   the Depositor has paid or deposited with the Note Trustee a
      sum sufficient to pay:

                  (A)   all overdue installments of interest on all of the Notes
            of that series;

                  (B)   any accrued Additional Interest on all of such Notes of
            that series;

                                       38
<PAGE>

                  (C)   the principal of and any premium on any Notes of that
            series that have become due otherwise than by such declaration of
            acceleration and interest and Additional Interest thereon at the
            rate borne by such Notes; and

                  (D)   all sums paid or advanced by the Note Trustee under the
            Indenture and the reasonable compensation, expenses, disbursements
            and advances of the Note Trustee, the Property Trustee and their
            agents and counsel; and

            (ii)  all Note Events of Default, other than the non-payment of the
      principal of the Notes that has become due solely by such acceleration,
      have been cured or waived as provided in Section 5.13 of the Indenture.

      Upon receipt by the Property Trustee of written notice requesting such an
acceleration, or rescission and annulment thereof, by Holders of any part of the
corresponding series of Preferred Securities, a record date shall be established
for determining Holders of Outstanding Preferred Securities of that series who
are entitled to join in such notice, which record date shall be at the close of
business on the day the Property Trustee receives such notice. The Holders on
such record date, or their duly designated proxies, and only such Persons, shall
be entitled to join in such notice, whether or not such Holders remain Holders
after such record date; provided, that, unless such declaration of acceleration,
or rescission and annulment, as the case may be, shall have become effective by
virtue of the requisite percentage having joined in such notice prior to the day
that is ninety (90) days after such record date, such notice of declaration of
acceleration, or rescission and annulment, as the case may be, shall
automatically and without further action by any Holder be canceled and of no
further effect. Nothing in this paragraph shall prevent a Holder, or a proxy of
a Holder, from giving, after expiration of such ninety (90)-day period, a new
written notice of declaration of acceleration, or rescission and annulment
thereof, as the case may be, that is identical to a written notice that has been
canceled pursuant to the proviso to the preceding sentence, in which event a new
record date shall be established pursuant to the provisions of this Section
6.10(a).

      (b)   For so long as any Preferred Securities of a given series remain
Outstanding, to the fullest extent permitted by law and subject to the terms of
this Trust Agreement and the Indenture, upon a Note Event of Default specified
in paragraph (a), (b) or (c) of Section 5.1 of the Indenture, any Holder of
Preferred Securities of that series shall have the right to institute a
proceeding directly against the Depositor, pursuant to Section 5.8 of the
Indenture, for enforcement of payment to such Holder of any amounts payable in
respect of Notes of the corresponding series having an aggregate principal
amount equal to the aggregate Liquidation Amount of such Preferred Securities of
such Holder. Except as set forth in Section 6.10(a) and this Section 6.10(b),
the Holders of Preferred Securities shall have no right to exercise directly any
right or remedy available to the holders of, or in respect of, the Notes.

      (c)   Notwithstanding paragraphs (a) and (b) of this Section 6.10, the
Holders of at least a Majority in Liquidation Amount of the Preferred Securities
of a given series may, on behalf of the Holders of all the Preferred Securities
of that series, waive any Note Event of Default, except any Note Event of
Default arising from the failure to pay any principal of or any premium or
interest on (including any Additional Interest) the Notes of the corresponding
series (unless such Note Event of Default has been cured and a sum sufficient to
pay all matured

                                       39
<PAGE>

installments of interest and all principal and premium on all Notes of that
series are due otherwise than by acceleration has been deposited with the Note
Trustee) or a Note Event of Default in respect of a covenant or provision that
under the Indenture cannot be modified or amended without the consent of the
holder of each outstanding Note of that series. Upon any such waiver, such Note
Event of Default shall cease to exist and any Note Event of Default arising
therefrom shall be deemed to have been cured for every purpose of the Indenture;
but no such waiver shall affect any subsequent Note Event of Default or impair
any right consequent thereon.

      (d)   Notwithstanding paragraphs (a) and (b) of this Section 6.10, the
Holders of at least a Majority in Liquidation Amount of the Preferred Securities
of a given series may, on behalf of the Holders of all the Preferred Securities
of that series, waive any past Event of Default and its consequences. Upon such
waiver, any such Event of Default shall cease to exist, and any Event of Default
arising therefrom shall be deemed to have been cured, for every purpose of this
Trust Agreement, but no such waiver shall extend to any subsequent or other
Event of Default or impair any right consequent thereon.

      (e)   The Holders of a Majority in Liquidation Amount of the Preferred
Securities shall have the right to direct the time, method and place of
conducting any proceeding for any remedy available to the Property Trustee in
respect of this Trust Agreement or the Notes of the corresponding series or
exercising any trust or power conferred upon the Property Trustee under this
Trust Agreement; provided, that, subject to Sections 8.5 and 8.7, the Property
Trustee shall have the right to decline to follow any such direction if the
Property Trustee being advised by counsel determines that the action so directed
may not lawfully be taken, or if the Property Trustee in good faith shall, by an
officer or officers of the Property Trustee, determine that the proceedings so
directed would be illegal or involve it in personal liability or be unduly
prejudicial to the rights of Holders not party to such direction, and provided,
further, that nothing in this Trust Agreement shall impair the right of the
Property Trustee to take any action deemed proper by the Property Trustee and
which is not inconsistent with such direction.

                                  ARTICLE VII.

                         REPRESENTATIONS AND WARRANTIES

      SECTION 7.1. Representations and Warranties of the Property Trustee and
the Delaware Trustee.

      The Property Trustee and the Delaware Trustee, each severally on behalf of
and as to itself, hereby represents and warrants for the benefit of the
Depositor and the Holders that:

      (a)   the Property Trustee is a Delaware banking corporation, duly
organized, validly existing and in good standing under the laws of the State of
Delaware;

      (b)   the Property Trustee has full corporate power, authority and legal
right to execute, deliver and perform its obligations under this Trust Agreement
and has taken all necessary action to authorize the execution, delivery and
performance by it of this Trust Agreement;

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<PAGE>

      (c)   the Delaware Trustee is a Delaware banking corporation, duly
organized, validly existing and in good standing under the laws of the State of
Delaware;

      (d)   the Delaware Trustee has full corporate power, authority and legal
right to execute, deliver and perform its obligations under this Trust Agreement
and has taken all necessary action to authorize the execution, delivery and
performance by it of this Trust Agreement;

      (e)   this Trust Agreement has been duly authorized, executed and
delivered by the Property Trustee and the Delaware Trustee and constitutes the
legal, valid and binding agreement of each of the Property Trustee and the
Delaware Trustee enforceable against each of them in accordance with its terms,
subject to applicable bankruptcy, insolvency and similar laws affecting
creditors' rights generally and to general principles of equity;

      (f)   the execution, delivery and performance of this Trust Agreement have
been duly authorized by all necessary corporate or other action on the part of
the Property Trustee and the Delaware Trustee and do not require any approval of
stockholders of the Property Trustee and the Delaware Trustee and such
execution, delivery and performance will not (i) violate the Certificate of
Incorporation or By-laws of the Property Trustee or the Delaware Trustee or (ii)
violate any applicable law, governmental rule or regulation of the United States
or the State of Delaware, as the case may be, governing the banking, trust or
general powers of the Property Trustee or the Delaware Trustee or any order,
judgment or decree applicable to the Property Trustee or the Delaware Trustee;

      (g)   neither the authorization, execution or delivery by the Property
Trustee or the Delaware Trustee of this Trust Agreement nor the consummation of
any of the transactions by the Property Trustee or the Delaware Trustee
contemplated herein requires the consent or approval of, the giving of notice
to, the registration with or the taking of any other action with respect to any
governmental authority or agency under any existing law of the United States or
the State of Delaware governing the banking, trust or general powers of the
Property Trustee or the Delaware Trustee, as the case may be; and

      (h)   to the best of each of the Property Trustee's and the Delaware
Trustee's knowledge, there are no proceedings pending or threatened against or
affecting the Property Trustee or the Delaware Trustee in any court or before
any governmental authority, agency or arbitration board or tribunal that,
individually or in the aggregate, would materially and adversely affect the
Trust or would question the right, power and authority of the Property Trustee
or the Delaware Trustee, as the case may be, to enter into or perform its
obligations as one of the Trustees under this Trust Agreement.

      SECTION 7.2. Representations and Warranties of Depositor.

      The Depositor hereby represents and warrants for the benefit of the
Holders that:

      (a)   the Depositor is a corporation duly organized, validly existing and
in good standing under the laws of its state of incorporation;

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<PAGE>

      (b)   the Depositor has full corporate power, authority and legal right to
execute, deliver and perform its obligations under this Trust Agreement and has
taken all necessary action to authorize the execution, delivery and performance
by it of this Trust Agreement;

      (c)   this Trust Agreement has been duly authorized, executed and
delivered by the Depositor and constitutes the legal, valid and binding
agreement of the Depositor enforceable against the Depositor in accordance with
its terms, subject to applicable bankruptcy, insolvency and similar laws
affecting creditors' rights generally and to general principles of equity;

      (d)   the Securities Certificates issued at each Closing Date on behalf of
the Trust have been duly authorized and will have been duly and validly
executed, issued and delivered by the applicable Trustees pursuant to the terms
and provisions of, and in accordance with the requirements of, this Trust
Agreement and the Holders will be, as of such date, entitled to the benefits of
this Trust Agreement;

      (e)   the execution, delivery and performance of this Trust Agreement have
been duly authorized by all necessary corporate or other action on the part of
the Depositor and do not require any approval of stockholders of the Depositor
and such execution, delivery and performance will not (i) violate the articles
or certificate of incorporation or by-laws (or other organizational documents)
of the Depositor or (ii) violate any applicable law, governmental rule or
regulation governing the Depositor or any material portion of its property or
any order, judgment or decree applicable to the Depositor or any material
portion of its property;

      (f)   neither the authorization, execution or delivery by the Depositor of
this Trust Agreement nor the consummation of any of the transactions by the
Depositor contemplated herein requires the consent or approval of, the giving of
notice to, the registration with or the taking of any other action with respect
to any governmental authority or agency under any existing law governing the
Depositor or any material portion of its property; and

      (g)   there are no proceedings pending or, to the best of the Depositor's
knowledge, threatened against or affecting the Depositor or any material portion
of its property in any court or before any governmental authority, agency or
arbitration board or tribunal that, individually or in the aggregate, would
materially and adversely affect the Trust or would question the right, power and
authority of the Depositor, as the case may be, to enter into or perform its
obligations under this Trust Agreement.

                                  ARTICLE VIII.

                                  THE TRUSTEES

      SECTION 8.1. Number of Trustees.

      The number of Trustees shall be five (5), provided, that the Property
Trustee and the Delaware Trustee may be the same Person, in which case the
number of Trustees shall be four (4). The number of Trustees may be increased or
decreased by Act of the Holder of the Common Securities subject to Sections 8.2,
8.3, and 8.4. The death, resignation, retirement,

                                       42
<PAGE>

removal, bankruptcy, incompetence or incapacity to perform the duties of an
Trustee shall not operate to annul, dissolve or terminate the Trust.

      SECTION 8.2. Property Trustee Required.

      There shall at all times be a Property Trustee hereunder with respect to
the Trust Securities. The Property Trustee shall be a corporation organized and
doing business under the laws of the United States or of any state thereof,
authorized to exercise corporate trust powers, having a combined capital and
surplus of at least fifty million dollars ($50,000,000), subject to supervision
or examination by federal or state authority and having an office within the
United States. If any such Person publishes reports of condition at least
annually pursuant to law or to the requirements of its supervising or examining
authority, then for the purposes of this Section 8.2, the combined capital and
surplus of such Person shall be deemed to be its combined capital and surplus as
set forth in its most recent report of condition so published. If at any time
the Property Trustee shall cease to be eligible in accordance with the
provisions of this Section 8.2, it shall resign immediately in the manner and
with the effect hereinafter specified in this Article VIII.

      SECTION 8.3. Delaware Trustee Required.

      (a)   If required by the Delaware Statutory Trust Act, there shall at all
times be a Delaware Trustee with respect to the Trust Securities. The Delaware
Trustee shall either be (i) a natural person who is at least 21 years of age and
a resident of the State of Delaware or (ii) a legal entity that has its
principal place of business in the State of Delaware, otherwise meets the
requirements of applicable Delaware law and shall act through one or more
persons authorized to bind such entity. If at any time the Delaware Trustee
shall cease to be eligible in accordance with the provisions of this Section
8.3, it shall resign immediately in the manner and with the effect hereinafter
specified in this Article VIII.

      (b)   The Delaware Trustee shall not be entitled to exercise any powers,
nor shall the Delaware Trustee have any of the duties and responsibilities, of
the Property Trustee or the Administrative Trustees set forth herein. The
Delaware Trustee shall be one of the trustees of the Trust for the sole and
limited purpose of fulfilling the requirements of Section 3807 of the Delaware
Statutory Trust Act and for taking such actions as are required to be taken by a
Delaware trustee under the Delaware Statutory Trust Act. The duties (including
fiduciary duties), liabilities and obligations of the Delaware Trustee shall be
limited to (a) accepting legal process served on the Trust in the State of
Delaware and (b) the execution of any certificates required to be filed with the
Secretary of State of the State of Delaware that the Delaware Trustee is
required to execute under Section 3811 of the Delaware Statutory Trust Act and
there shall be no other duties (including fiduciary duties) or obligations,
express or implied, at law or in equity, of the Delaware Trustee.

      SECTION 8.4. Appointment of Administrative Trustees.

      (a)   There shall at all times be one or more Administrative Trustees
hereunder with respect to the Trust Securities. Each Administrative Trustee
shall be either a natural person who is at least 21 years of age or a legal
entity that shall act through one or more persons authorized

                                       43
<PAGE>

to bind that entity. Each of the individuals identified as an "Administrative
Trustee" in the preamble of this Trust Agreement hereby accepts his or her
appointment as such.

      (b)   Except where a requirement for action by a specific number of
Administrative Trustees is expressly set forth in this Trust Agreement, any act
required or permitted to be taken by, and any power of the Administrative
Trustees may be exercised by, or with the consent of, any one such
Administrative Trustee. Whenever a vacancy in the number of Administrative
Trustees shall occur, until such vacancy is filled by the appointment of an
Administrative Trustee in accordance with Section 8.11, the Administrative
Trustees in office, regardless of their number (and notwithstanding any other
provision of this Trust Agreement), shall have all the powers granted to the
Administrative Trustees and shall discharge all the duties imposed upon the
Administrative Trustees by this Trust Agreement.

      SECTION 8.5. Duties and Responsibilities of the Trustees.

      (a)   The rights, immunities, duties and responsibilities of the Trustees
shall be as provided by this Trust Agreement and there shall be no other duties
(including fiduciary duties) or obligations, express or implied, at law or in
equity, of the Trustees; provided, however, that if an Event of Default known to
the Property Trustee has occurred and is continuing, the Property Trustee shall,
prior to the receipt of directions, if any, from the Holders of at least a
Majority in Liquidation Amount of the applicable series of Preferred Securities,
exercise such of the rights and powers vested in it by the Indenture, and use
the same degree of care and skill in its exercise, as a prudent person would
exercise or use under the circumstances in the conduct of such person's own
affairs. Notwithstanding the foregoing, no provision of this Trust Agreement
shall require any of the Trustees to expend or risk its own funds or otherwise
incur any financial liability in the performance of any of its duties hereunder,
or in the exercise of any of its or their rights or powers, if it or they shall
have reasonable grounds for believing that repayment of such funds or adequate
indemnity against such risk or liability is not reasonably assured to it.
Whether or not herein expressly so provided, every provision of this Trust
Agreement relating to the conduct or affecting the liability of or affording
protection to the Trustees shall be subject to the provisions of this Section
8.5. To the extent that, at law or in equity, a Trustee has duties and
liabilities relating to the Trust or to the Holders, such Trustee shall not be
liable to the Trust or to any Holder for such Trustee's good faith reliance on
the provisions of this Trust Agreement. The provisions of this Trust Agreement,
to the extent that they restrict the duties and liabilities of the Trustees
otherwise existing at law or in equity, are agreed by the Depositor and the
Holders to replace such other duties and liabilities of the Trustees.

      (b)   All payments made by the Property Trustee or a Paying Agent in
respect of the Trust Securities shall be made only from the revenue and proceeds
from the Trust Property and only to the extent that there shall be sufficient
revenue or proceeds from the Trust Property to enable the Property Trustee or a
Paying Agent to make payments in accordance with the terms hereof. Each Holder,
by its acceptance of a Trust Security, agrees that it will look solely to the
revenue and proceeds from the Trust Property to the extent legally available for
distribution to it as herein provided and that the Trustees are not personally
liable to it for any amount distributable in respect of any Trust Security or
for any other liability in respect of any Trust Security. This Section 8.5(b)
does not limit the liability of the Trustees expressly set forth elsewhere in
this Trust Agreement.

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<PAGE>

      (c)   No provisions of this Trust Agreement shall be construed to relieve
the Property Trustee from liability with respect to matters that are within the
authority of the Property Trustee under this Trust Agreement for its own
negligent action, negligent failure to act or willful misconduct, except that:

            (i)   the Property Trustee shall not be liable for any error or
      judgment made in good faith by an authorized officer of the Property
      Trustee, unless it shall be proved that the Property Trustee was negligent
      in ascertaining the pertinent facts;

            (ii)  the Property Trustee shall not be liable with respect to any
      action taken or omitted to be taken by it in good faith in accordance with
      the direction of the Holders of at least a Majority in Liquidation Amount
      of the applicable series of Preferred Securities relating to the time,
      method and place of conducting any proceeding for any remedy available to
      the Property Trustee hereunder or under the Indenture, or exercising any
      trust or power conferred upon the Property Trustee under this Trust
      Agreement;

            (iii) the Property Trustee's sole duty with respect to the custody,
      safe keeping and physical preservation of the Notes and the Payment
      Account shall be to deal with such Property in a similar manner as the
      Property Trustee deals with similar property for its own account, subject
      to the protections and limitations on liability afforded to the Property
      Trustee under this Trust Agreement;

            (iv)  the Property Trustee shall not be liable for any interest on
      any money received by it except as it may otherwise agree with the
      Depositor; and money held by the Property Trustee need not be segregated
      from other funds held by it except in relation to the Payment Account
      maintained by the Property Trustee pursuant to Section 3.1 and except to
      the extent otherwise required by law; and

            (v)   the Property Trustee shall not be responsible for monitoring
      the compliance by the Administrative Trustees or the Depositor with their
      respective duties under this Trust Agreement, nor shall the Property
      Trustee be liable for the default or misconduct of any other Trustee or
      the Depositor.

      SECTION 8.6. Notices of Defaults and Extensions.

      (a)   Within ninety (90) days after the occurrence of a default actually
known to the Property Trustee, the Property Trustee shall transmit notice of
such default to the Holders, the Administrative Trustees and the Depositor,
unless such default shall have been cured or waived; provided, that, except in
the case of a default in the payment of the principal of or any premium or
interest (including any Additional Interest) on any Trust Security, the Property
Trustee shall be fully protected in withholding such notice if and so long as
the board of directors, the executive committee or a trust committee of
directors and/or Responsible Officers of the Property Trustee in good faith
determines that the withholding of such notice is in the interests of the
Holders of the Trust Securities. For the purpose of this Section 8.6, the term
"default" means any event that is, or after notice or lapse of time or both
would become, an Event of Default.

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<PAGE>

      (b)   Within three (3) Business Days after the receipt of notice of the
Depositor's exercise of its right to defer the payment of interest on any series
of Notes pursuant to the Indenture, the Property Trustee shall transmit, in the
manner and to the extent provided in Section 11.8, notice of such exercise to
the applicable Holders and the Administrative Trustees, unless such exercise
shall have been revoked.

      (c)   The Property Trustee shall not be deemed to have knowledge of any
Event of Default unless the Property Trustee shall have received written notice
thereof from the Depositor, any Administrative Trustee or any Holder or unless
an officer of the Property Trustee charged with the administration of this Trust
Agreement shall have obtained actual knowledge of such Event of Default.

      (d)   The Property Trustee shall notify all Holders of a series of
Preferred Securities of any notice of default received with respect to the
corresponding series of Notes.

      SECTION 8.7. Certain Rights of Property Trustee.

      Subject to the provisions of Section 8.5:

      (a)   the Property Trustee may conclusively rely and shall be protected in
acting or refraining from acting in good faith and in accordance with the terms
hereof upon any resolution, Opinion of Counsel, certificate, written
representation of a Holder or transferee, certificate of auditors or any other
resolution, certificate, statement, instrument, opinion, report, notice,
request, direction, consent, order, appraisal, bond, debenture, note, other
evidence of indebtedness or other paper or document believed by it to be genuine
and to have been signed or presented by the proper party or parties;

      (b)   if (i) in performing its duties under this Trust Agreement the
Property Trustee is required to decide between alternative courses of action,
(ii) in construing any of the provisions of this Trust Agreement the Property
Trustee finds a provision ambiguous or inconsistent with any other provisions
contained herein or (iii) the Property Trustee is unsure of the application of
any provision of this Trust Agreement, then, except as to any matter as to which
the Holders of the Preferred Securities are entitled to vote under the terms of
this Trust Agreement, the Property Trustee shall deliver a notice to the
Depositor requesting the Depositor's written instruction as to the course of
action to be taken and the Property Trustee shall take such action, or refrain
from taking such action, as the Property Trustee shall be instructed in writing
to take, or to refrain from taking, by the Depositor; provided, that if the
Property Trustee does not receive such instructions of the Depositor within ten
(10) Business Days after it has delivered such notice or such reasonably shorter
period of time set forth in such notice, the Property Trustee may, but shall be
under no duty to, take such action, or refrain from taking such action, as the
Property Trustee shall deem advisable and in the best interests of the Holders,
in which event the Property Trustee shall have no liability except for its own
negligence, bad faith or willful misconduct;

      (c)   any direction or act of the Depositor contemplated by this Trust
Agreement shall be sufficiently evidenced by an Officers' Certificate unless
otherwise expressly provided herein;

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<PAGE>

      (d)   any direction or act of an Administrative Trustee contemplated by
this Trust Agreement shall be sufficiently evidenced by a certificate executed
by such Administrative Trustee and setting forth such direction or act;

      (e)   the Property Trustee shall have no duty to see to any recording,
filing or registration of any instrument (including any financing or
continuation statement or any filing under tax or securities laws) or any
re-recording, re-filing or re-registration thereof;

      (f)   the Property Trustee may consult with counsel (which counsel may be
counsel to the Property Trustee, the Depositor or any of its Affiliates, and may
include any of its employees) and the advice of such counsel shall be full and
complete authorization and protection in respect of any action taken, suffered
or omitted by it hereunder in good faith and in reliance thereon and in
accordance with such advice; the Property Trustee shall have the right at any
time to seek instructions concerning the administration of this Trust Agreement
from any court of competent jurisdiction;

      (g)   the Property Trustee shall be under no obligation to exercise any of
the rights or powers vested in it by this Trust Agreement at the request or
direction of any of the Holders pursuant to this Trust Agreement, unless such
Holders shall have offered to the Property Trustee reasonable security or
indemnity against the costs, expenses (including reasonable attorneys' fees and
expenses) and liabilities that might be incurred by it in compliance with such
request or direction, including reasonable advances as may be requested by the
Property Trustee;

      (h)   the Property Trustee shall not be bound to make any investigation
into the facts or matters stated in any resolution, certificate, statement,
instrument, opinion, report, notice, request, direction, consent, order,
approval, bond, debenture, note or other evidence of indebtedness or other paper
or document, unless requested in writing to do so by one or more Holders, but
the Property Trustee may make such further inquiry or investigation into such
facts or matters as it may see fit, and, if the Property Trustee shall determine
to make such inquiry or investigation, it shall be entitled to examine the
books, records and premises of the Depositor, personally or by agent or
attorney;

      (i)   the Property Trustee may execute any of the trusts or powers
hereunder or perform any duties hereunder either directly or by or through its
agents, attorneys, custodians or nominees and the Property Trustee shall not be
responsible for any negligence or misconduct on the part of any such agent,
attorney, custodian or nominee appointed with due care by it hereunder;

      (j)   whenever in the administration of this Trust Agreement the Property
Trustee shall deem it desirable to receive instructions with respect to
enforcing any remedy or right hereunder, the Property Trustee (i) may request
instructions from the Holders (which instructions may only be given by the
Holders of the same proportion in Liquidation Amount of the Trust Securities as
would be entitled to direct the Property Trustee under this Trust Agreement in
respect of such remedy, right or action), (ii) may refrain from enforcing such
remedy or right or taking such other action until such instructions are received
and (iii) shall be protected in acting in accordance with such instructions;

                                       47
<PAGE>

      (k)   except as otherwise expressly provided by this Trust Agreement, the
Property Trustee shall not be under any obligation to take any action that is
discretionary under the provisions of this Trust Agreement;

      (l)   without prejudice to any other rights available to the Property
Trustee under applicable law, when the Property Trustee incurs expenses or
renders services in connection with a Bankruptcy Event, such expenses (including
legal fees and expenses of its agents and counsel) and the compensation for such
services are intended to constitute expenses of administration under any
bankruptcy law or law relating to creditors rights generally; and

      (m)   whenever in the administration of this Trust Agreement the Property
Trustee shall deem it desirable that a matter be proved or established prior to
taking, suffering or omitting any action hereunder, the Property Trustee (unless
other evidence be herein specifically prescribed) may, in the absence of bad
faith on its part, request and rely on an Officers' Certificate which, upon
receipt of such request, shall be promptly delivered by the Depositor.

      No provision of this Trust Agreement shall be deemed to impose any duty or
obligation on any Trustee to perform any act or acts or exercise any right,
power, duty or obligation conferred or imposed on it, in any jurisdiction in
which it shall be illegal, or in which such Person shall be unqualified or
incompetent in accordance with applicable law, to perform any such act or acts,
or to exercise any such right, power, duty or obligation.

      SECTION 8.8. Delegation of Power.

      Any Trustee may, by power of attorney consistent with applicable law,
delegate to any other natural person over the age of 21 its, his or her power
for the purpose of executing any documents contemplated in Section 2.5. The
Trustees shall have power to delegate from time to time to such of their number
or to the Depositor the doing of such things and the execution of such
instruments either in the name of the Trust or the names of the Trustees or
otherwise as the Trustees may deem expedient, to the extent such delegation is
not prohibited by applicable law or contrary to the provisions of this Trust
Agreement.

      SECTION 8.9. May Hold Securities.

      Any Trustee or any other agent of any Trustee or the Trust, in its
individual or any other capacity, may become the owner or pledgee of Trust
Securities and except as provided in the definition of the term "Outstanding" in
Article I, may otherwise deal with the Trust with the same rights it would have
if it were not a Trustee or such other agent.

      SECTION 8.10. Compensation; Reimbursement; Indemnity.

      The Depositor agrees:

      (a)   to pay to the Trustees from time to time such reasonable
compensation for all services rendered by them hereunder as may be agreed by the
Depositor and the Trustees from time to time (which compensation shall not be
limited by any provision of law in regard to the compensation of a trustee of an
express trust);

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<PAGE>

      (b)   to reimburse the Trustees upon request for all reasonable expenses,
disbursements and advances incurred or made by the Trustees in accordance with
any provision of this Trust Agreement (including the reasonable compensation and
the expenses and disbursements of their agents and counsel), except any such
expense, disbursement or advance as may be attributable to their negligence, bad
faith or willful misconduct; and

      (c)   to the fullest extent permitted by applicable law, to indemnify and
hold harmless (i) each Trustee, (ii) any Affiliate of any Trustee, (iii) any
officer, director, shareholder, employee, representative or agent of any Trustee
or any Affiliate of any Trustee and (iv) any employee or agent of the Trust
(referred to herein as an "Indemnified Person") from and against any loss,
damage, liability, tax (other than income, franchise or other taxes imposed on
amounts paid pursuant to Section 8.10(a) or (b) hereof), penalty, expense, suit
or claim of any kind or nature whatsoever incurred without negligence, bad faith
or willful misconduct on its part, arising out of or in connection with the
acceptance or administration of the Trust hereunder, including the advancement
of funds to cover the reasonable costs and expenses of defending itself against
any claim or liability in connection with the exercise or performance of any of
its powers or duties hereunder.

      The Trust shall have no payment, reimbursement or indemnity obligations to
the Trustees under this Section 8.10. The provisions of this Section 8.10 shall
survive the termination of this Trust Agreement and the earlier removal or
resignation of any Trustee.

      No Trustee may claim any Lien on any Trust Property whether before or
after termination of the Trust as a result of any amount due pursuant to this
Section 8.10.

      To the fullest extent permitted by law, in no event shall the Property
Trustee and the Delaware Trustee be liable for any indirect, special, punitive
or consequential loss or damage of any kind whatsoever, including, but not
limited to, lost profits, even if the Trustee has been advised of the likelihood
of such loss or damage and regardless of the form of action.

      In no event shall the Property Trustee and the Delaware Trustee be liable
for any failure or delay in the performance of its obligations hereunder because
of circumstances beyond its control, including, but not limited to, acts of God,
flood, war (whether declared or undeclared), terrorism, fire, riot, embargo,
government action, including any laws, ordinances, regulations, governmental
action or the like which delay, restrict or prohibit the providing of the
services contemplated by this Trust Agreement.

      SECTION 8.11. Resignation and Removal; Appointment of Successor.

      (a)   No resignation or removal of any Trustee and no appointment of a
successor Trustee pursuant to this Article VIII shall become effective until the
acceptance of appointment by the successor Trustee in accordance with the
applicable requirements of Section 8.12.

      (b)   A Trustee may resign at any time by giving written notice thereof to
the Depositor and, in the case of the Property Trustee and the Delaware Trustee,
to the Holders.

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<PAGE>

      (c)   Unless an Event of Default shall have occurred and be continuing,
the Property Trustee or the Delaware Trustee, or both of them, may be removed
(with or without cause) at any time by Act of the Holder of the Common
Securities. If an Event of Default shall have occurred and be continuing, the
Property Trustee or the Delaware Trustee, or both of them, may be removed (with
or without cause) at such time by Act of the Holders of at least a Majority in
Liquidation Amount of the Preferred Securities, delivered to the removed Trustee
(in its individual capacity and on behalf of the Trust). An Administrative
Trustee may be removed (with or without cause) only by Act of the Holder of the
Common Securities at any time.

      (d)   If any Trustee shall resign, be removed or become incapable of
acting as Trustee, or if a vacancy shall occur in the office of any Trustee for
any reason, at a time when no Event of Default shall have occurred and be
continuing, the Holder of the Common Securities, by Act of the Holder of the
Common Securities, shall promptly appoint a successor Trustee or Trustees, and
such successor Trustee and the retiring Trustee shall comply with the applicable
requirements of Section 8.12. If the Property Trustee or the Delaware Trustee
shall resign, be removed or become incapable of continuing to act as the
Property Trustee or the Delaware Trustee, as the case may be, at a time when an
Event of Default shall have occurred and be continuing, the Holders of the
Preferred Securities, by Act of the Holders of a Majority in Liquidation Amount
of the Preferred Securities, shall promptly appoint a successor Property Trustee
or Delaware Trustee, and such successor Property Trustee or Delaware Trustee and
the retiring Property Trustee or Delaware Trustee shall comply with the
applicable requirements of Section 8.12. If an Administrative Trustee shall
resign, be removed or become incapable of acting as Administrative Trustee, at a
time when an Event of Default shall have occurred and be continuing, the Holder
of the Common Securities by Act of the Holder of Common Securities shall
promptly appoint a successor Administrative Trustee and such successor
Administrative Trustee and the retiring Administrative Trustee shall comply with
the applicable requirements of Section 8.12. If no successor Trustee shall have
been so appointed by the Holder of the Common Securities or Holders of the
Preferred Securities, as the case may be, and accepted appointment in the manner
required by Section 8.12 within thirty (30) days after the giving of a notice of
resignation by a Trustee, the removal of a Trustee, or a Trustee becoming
incapable of acting as such Trustee, any Holder who has been a Holder of
Preferred Securities for at least six (6) months may, on behalf of himself and
all others similarly situated, and any resigning Trustee may, in each case, at
the expense of the Depositor, petition any court of competent jurisdiction for
the appointment of a successor Trustee.

      (e)   The Depositor shall give notice of each resignation and each removal
of the Property Trustee or the Delaware Trustee and each appointment of a
successor Property Trustee or Delaware Trustee to all Holders in the manner
provided in Section 11.8. Each notice shall include the name of the successor
Property Trustee or Delaware Trustee and the address of its Corporate Trust
Office if it is the Property Trustee.

      (f)   Notwithstanding the foregoing or any other provision of this Trust
Agreement, in the event any Administrative Trustee or a Delaware Trustee who is
a natural person dies or becomes, in the opinion of the Holder of Common
Securities, incompetent or incapacitated, the vacancy created by such death,
incompetence or incapacity may be filled by (i) the unanimous act of the
remaining Administrative Trustees if there are at least two of them or (ii)
otherwise by the Holder of the Common Securities (with the successor in each
case being a Person who

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<PAGE>

satisfies the eligibility requirement for Administrative Trustees or Delaware
Trustee, as the case may be, set forth in Sections 8.3 and 8.4).

      (g)   Upon the appointment of a successor Delaware Trustee, such successor
Delaware Trustee shall file a Certificate of Amendment to the Certificate of
Trust in accordance with Section 3810 of the Delaware Statutory Trust Act.

      SECTION 8.12. Acceptance of Appointment by Successor.

      (a)   In case of the appointment hereunder of a successor Trustee, each
successor Trustee shall execute and deliver to the Depositor and to the retiring
Trustee an instrument accepting such appointment, and thereupon the resignation
or removal of the retiring Trustee shall become effective and each such
successor Trustee, without any further act, deed or conveyance, shall become
vested with all the rights, powers, trusts and duties of the retiring Trustee;
but, on request of the Trust or any successor Trustee such retiring Trustee
shall, upon payment of its charges, duly assign, transfer and deliver to such
successor Trustee all Trust Property, all proceeds thereof and money held by
such retiring Trustee hereunder with respect to the Trust Securities and the
Trust.

      (b)   Upon request of any such successor Trustee, the Trust (or the
retiring Trustee if requested by the Depositor) shall execute any and all
instruments for more fully and certainly vesting in and confirming to such
successor Trustee all such rights, powers and trusts referred to in the
preceding paragraph.

      (c)   No successor Trustee shall accept its appointment unless at the time
of such acceptance such successor Trustee shall be qualified and eligible under
this Article VIII.

      SECTION 8.13. Merger, Conversion, Consolidation or Succession to Business.

      Any Person into which the Property Trustee or the Delaware Trustee may be
merged or converted or with which it may be consolidated, or any Person
resulting from any merger, conversion or consolidation to which such Trustee
shall be a party, or any Person succeeding to all or substantially all the
corporate trust business of such Trustee, shall be the successor of such Trustee
hereunder, without the execution or filing of any paper or any further act on
the part of any of the parties hereto, provided, that such Person shall be
otherwise qualified and eligible under this Article VIII.

      SECTION 8.14. Not Responsible for Recitals or Issuance of Securities.

      The recitals contained herein and in the Securities Certificates shall be
taken as the statements of the Trust and the Depositor, and the Trustees do not
assume any responsibility for their correctness. The Trustees make no
representations as to the title to, or value or condition of, the property of
the Trust or any part thereof, nor as to the validity or sufficiency of this
Trust Agreement, the Notes or the Trust Securities. The Trustees shall not be
accountable for the use or application by the Depositor of the proceeds of the
Notes.

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<PAGE>

      SECTION 8.15. Property Trustee May File Proofs of Claim.

      (a)   In case of any Bankruptcy Event (or event that with the passage of
time would become a Bankruptcy Event) relative to the Trust or any other obligor
upon the Trust Securities or the property of the Trust or of such other obligor
or their creditors, the Property Trustee (irrespective of whether any
Distributions on the Trust Securities shall then be due and payable and
irrespective of whether the Property Trustee shall have made any demand on the
Trust for the payment of any past due Distributions) shall be entitled and
empowered, to the fullest extent permitted by law, by intervention in such
proceeding or otherwise:

            (i)   to file and prove a claim for the whole amount of any
      Distributions owing and unpaid in respect of the Trust Securities and to
      file such other papers or documents as may be necessary or advisable in
      order to have the claims of the Property Trustee (including any claim for
      the reasonable compensation, expenses, disbursements and advances of the
      Property Trustee, its agents and counsel) and of the Holders allowed in
      such judicial proceeding; and

            (ii)  to collect and receive any monies or other property payable or
      deliverable on any such claims and to distribute the same;

and any custodian, receiver, assignee, trustee, liquidator, sequestrator or
other similar official in any such proceeding is hereby authorized by each
Holder to make such payments to the Property Trustee and, in the event the
Property Trustee shall consent to the making of such payments directly to the
Holders, to pay to the Property Trustee first any amount due it for the
reasonable compensation, expenses, disbursements and advances of the Property
Trustee, its agents and counsel, and any other amounts due the Property Trustee.

      (b)   Nothing herein contained shall be deemed to authorize the Property
Trustee to authorize or consent to or accept or adopt on behalf of any Holder
any plan of reorganization, arrangement, adjustment or compensation affecting
the Trust Securities or the rights of any Holder thereof or to authorize the
Property Trustee to vote in respect of the claim of any Holder in any such
proceeding.

      SECTION 8.16. Reports to and from the Property Trustee.

      (a)   The Depositor and the Administrative Trustees shall deliver to the
Property Trustee, not later than forty five (45) days after the end of each of
the first three fiscal quarters of the Depositor and not later than ninety (90)
days after the end of each fiscal year of the Depositor ending after the date of
this Trust Agreement, an Officers' Certificate covering the preceding fiscal
period, stating whether or not to the knowledge of the signers thereof the
Depositor and the Trust are in default in the performance or observance of any
of the terms, provisions and conditions of this Trust Agreement (without regard
to any period of grace or requirement of notice provided hereunder) and, if the
Depositor or the Trust shall be in default, specifying all such defaults and the
nature and status thereof of which they have knowledge.

      (b)   The Depositor shall furnish to (i) the Property Trustee, (ii) the
Purchaser, (iii) any Owner of the Preferred Securities reasonably identified to
the Depositor or the Trust (which

                                       52
<PAGE>

identification may be made either by such Owner or by the Placement Agent or
Purchaser), and (iv) any designee of (i), (ii) or (iii) above, a duly completed
and executed certificate in the form attached hereto as Exhibit G, including the
financial statements referenced in such Exhibit, which certificate and financial
statements shall be so furnished by the Depositor not later than forty five (45)
days after the end of each of the first three fiscal quarters of each fiscal
year of the Depositor and not later than ninety (90) days after the end of each
fiscal year of the Depositor.

      (c)   The Property Trustee shall receive all reports, certificates and
information, which it is entitled to receive under each of the Operative
Documents, and deliver to (i) the Purchaser, (ii) the Placement Agent and (iii)
a designee of (i) or (ii) above as identified in writing to the Property
Trustee, all such reports, certificates or information promptly upon receipt
thereof.

                                   ARTICLE IX.

                       TERMINATION, LIQUIDATION AND MERGER

      SECTION 9.1. Dissolution Upon Expiration Date.

      Unless earlier dissolved, the Trust shall automatically dissolve on
December 15, 2039 (the "Expiration Date"), and the Trust Property shall be
liquidated in accordance with Section 9.4.

      SECTION 9.2. Early Termination.

      The first to occur of any of the following events is an "Early Termination
Event", upon the occurrence of which the Trust shall be dissolved:

      (a)   the occurrence of a Bankruptcy Event in respect of, or the
dissolution or liquidation of, the Depositor, in its capacity as the Holder of
the Common Securities, unless the Depositor shall have transferred the Common
Securities as provided by Section 5.11, in which case this provision shall refer
instead to any such successor Holder of the Common Securities;

      (b)   the written direction to the Property Trustee from the Holder of the
Common Securities at any time to dissolve the Trust and, after satisfaction of
any liabilities of the Trust as required by applicable law, to distribute the
Notes to Holders in exchange for the Preferred Securities (which direction is
optional and wholly within the discretion of the Holder of the Common
Securities), provided, that the Holder of the Common Securities shall have
received the prior approval of the Federal Reserve if then required;

      (c)   the redemption of all of the Preferred Securities in connection with
the payment at maturity or redemption of all the Notes; and

      (d)   the entry of an order for dissolution of the Trust by a court of
competent jurisdiction.

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      SECTION 9.3. Termination.

      The respective obligations and responsibilities of the Trustees and the
Trust shall terminate upon the latest to occur of the following: (a) the
distribution by the Property Trustee to Holders of all amounts required to be
distributed hereunder upon the liquidation of the Trust pursuant to Section 9.4,
or upon the redemption of all of the Trust Securities pursuant to Section 4.2;
(b) the satisfaction of any expenses owed by the Trust; and (c) the discharge of
all administrative duties of the Administrative Trustees, including the
performance of any tax reporting obligations with respect to the Trust or the
Holders.

      SECTION 9.4. Liquidation.

      (a)   If an Early Termination Event specified in Section 9.2(a), (b) or
(d) occurs or upon the Expiration Date, the Trust shall be liquidated by the
Property Trustee as expeditiously as the Property Trustee shall determine to be
possible by distributing, after satisfaction of liabilities to creditors of the
Trust as provided by applicable law, to each Holder a Like Amount of Notes,
subject to Section 9.4(d). Notice of liquidation shall be given by the Property
Trustee not less than thirty (30) nor more than sixty (60) days prior to the
Liquidation Date to each Holder of Trust Securities at such Holder's address
appearing in the Securities Register. All such notices of liquidation shall:

            (i)   state the Liquidation Date;

            (ii)  state that from and after the Liquidation Date, the Trust
      Securities will no longer be deemed to be Outstanding and (subject to
      Section 9.4(d)) any Securities Certificates not surrendered for exchange
      will be deemed to represent a Like Amount of Notes; and

            (iii) provide such information with respect to the mechanics by
      which Holders may exchange Securities Certificates for Notes, or if
      Section 9.4(d) applies, receive a Liquidation Distribution, as the
      Property Trustee shall deem appropriate.

      (b)   Except where Section 9.2(c) or 9.4(d) applies, in order to effect
the liquidation of the Trust and distribution of the Notes to Holders, the
Property Trustee, either itself acting as exchange agent or through the
appointment of a separate exchange agent, shall establish a record date for such
distribution (which shall not be more than forty-five (45) days prior to the
Liquidation Date nor prior to the date on which notice of such liquidation is
given to the Holders) and establish such procedures as it shall deem appropriate
to effect the distribution of Notes in exchange for the Outstanding Securities
Certificates.

      (c)   Except where Section 9.2(c) or 9.4(d) applies, after the Liquidation
Date, (i) the Trust Securities will no longer be deemed to be Outstanding, (ii)
certificates representing a Like Amount of Notes will be issued to Holders of
Securities Certificates, upon surrender of such Certificates to the exchange
agent for exchange, (iii) the Depositor shall use its best efforts to have the
Notes listed on the New York Stock Exchange or on such other exchange,
interdealer quotation system or self-regulatory organization on which the
Preferred Securities are then listed, if any, (iv) Securities Certificates not
so surrendered for exchange will be deemed to represent a

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<PAGE>

Like Amount of Notes bearing accrued and unpaid interest in an amount equal to
the accumulated and unpaid Distributions on such Securities Certificates until
such certificates are so surrendered (and until such certificates are so
surrendered, no payments of interest or principal will be made to Holders of
Securities Certificates with respect to such Notes) and (v) all rights of
Holders holding Trust Securities will cease, except the right of such Holders to
receive Notes upon surrender of Securities Certificates.

      (d)   Notwithstanding the other provisions of this Section 9.4, if
distribution of the Notes in the manner provided herein is determined by the
Property Trustee not to be permitted or practical, the Trust Property shall be
liquidated, and the Trust shall be wound up by the Property Trustee in such
manner as the Property Trustee determines. In such event, Holders will be
entitled to receive out of the assets of the Trust available for distribution to
Holders, after satisfaction of liabilities to creditors of the Trust as provided
by applicable law, an amount equal to the Liquidation Amount per Trust Security
plus accumulated and unpaid Distributions thereon to the date of payment (such
amount being the "Liquidation Distribution"). If, upon any such winding up the
Liquidation Distribution can be paid only in part because the Trust has
insufficient assets available to pay in full the aggregate Liquidation
Distribution, then, subject to the next succeeding sentence, the amounts payable
by the Trust on the Trust Securities shall be paid on a pro rata basis (based
upon Liquidation Amounts). The Holder of the Common Securities will be entitled
to receive Liquidation Distributions upon any such winding up pro rata (based
upon Liquidation Amounts) with Holders of all Trust Securities, except that, if
an Event of Default has occurred and is continuing, the Preferred Securities
shall have a priority over the Common Securities as provided in Section 4.3.

      SECTION 9.5. Mergers, Consolidations, Amalgamations or Replacements of
Trust.

      The Trust may not merge with or into, consolidate, amalgamate, or be
replaced by, or convey, transfer or lease its properties and assets
substantially as an entirety to, any Person except pursuant to this Article IX.
At the request of the Holder of the Common Securities, without the consent of
the Holders of the Preferred Securities, the Trust may merge with or into,
consolidate, amalgamate, or be replaced by or convey, transfer or lease its
properties and assets substantially as an entirety to a trust organized as such
under the laws of any State; provided, that:

      (a)   such successor entity either (i) expressly assumes all of the
obligations of the Trust under this Trust Agreement with respect to the
Preferred Securities or (ii) substitutes for the Preferred Securities other
securities having substantially the same terms as the Preferred Securities (such
other Securities, the "Successor Securities") so long as the Successor
Securities have the same priority as the Preferred Securities with respect to
distributions and payments upon liquidation, redemption and otherwise;

      (b)   a trustee of such successor entity possessing substantially the same
powers and duties as the Property Trustee is appointed to hold the Notes;

      (c)   if the Preferred Securities or the Notes are rated, such merger,
consolidation, amalgamation, replacement, conveyance, transfer or lease does not
cause the Preferred Securities

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<PAGE>

or the Notes (including any Successor Securities) to be downgraded by any
nationally recognized statistical rating organization that then assigns a rating
to the Preferred Securities or the Notes;

      (d)   the Preferred Securities are listed, or any Successor Securities
will be listed upon notice of issuance, on any national securities exchange or
interdealer quotation system on which the Preferred Securities are then listed,
if any;

      (e)   such merger, consolidation, amalgamation, replacement, conveyance,
transfer or lease does not adversely affect the rights, preferences and
privileges of the Holders of the Preferred Securities (including any Successor
Securities) in any material respect;

      (f)   such successor entity has a purpose substantially identical to that
of the Trust;

      (g)   prior to such merger, consolidation, amalgamation, replacement,
conveyance, transfer or lease, the Depositor has received an Opinion of Counsel
to the effect that (i) such merger, consolidation, amalgamation, replacement,
conveyance, transfer or lease does not adversely affect the rights, preferences
and privileges of the Holders of the Preferred Securities (including any
Successor Securities) in any material respect; (ii) following such merger,
consolidation, amalgamation, replacement, conveyance, transfer or lease, neither
the Trust nor such successor entity will be required to register as an
"investment company" under the Investment Company Act and (iii) following such
merger, consolidation, amalgamation, replacement, conveyance, transfer or lease,
the Trust (or the successor entity) will continue to be classified as a grantor
trust for U.S. federal income tax purposes; and

      (h)   the Depositor or its permitted transferee owns all of the common
securities of such successor entity and guarantees the obligations of such
successor entity under the Successor Securities at least to the extent provided
by the Guarantee Agreement.

Notwithstanding the foregoing, the Trust shall not, except with the consent of
Holders of all of the Preferred Securities, consolidate, amalgamate, merge with
or into, or be replaced by or convey, transfer or lease its properties and
assets substantially as an entirety to any other Person or permit any other
entity to consolidate, amalgamate, merge with or into, or replace, the Trust if
such consolidation, amalgamation, merger, replacement, conveyance, transfer or
lease would cause the Trust or the successor entity to be taxable as a
corporation or classified as other than a grantor trust for United States
federal income tax purposes or cause the Notes to be treated as other than
indebtedness of the Depositor for United States federal income tax purposes.

                                   ARTICLE X.

                            INFORMATION TO PURCHASER

      SECTION 10.1. Depositor Obligations to Purchaser.

      Notwithstanding any other provision herein, the Depositor shall furnish to
(a) the Purchaser, (b) any Owner of the Preferred Securities reasonably
identified to the Depositor or the Trust (which identification may be made
either by such Owner or by the Placement Agent or Purchaser) and (c) any
designee of (a) or (b) above, copies of all correspondence, notices, forms,

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<PAGE>

filings, reports and other documents required to be provided by the Depositor,
whether acting through an Administrative Trustee or otherwise, to the Property
Trustee or Delaware, Trustee under this Trust Agreement.

      SECTION 10.2. Trustee's Obligations to Purchaser.

      Notwithstanding any other provision herein, the Property Trustee shall
furnish to (a) the Purchaser, (b) the Placement Agent and (c) a designee of (a)
or (b) above, copies of all (i) correspondence, notices, forms, filings, reports
and other documents required to be provided to the Property Trustee or Delaware
Trustee by the Depositor, whether acting through an Administrative Trustee or
otherwise, under this Trust Agreement, and (ii) all correspondence, notices,
forms, filings, reports and other documents required to be provided to the
Depositor or a Holder by the Property Trustee or Delaware Trustee under this
Trust Agreement.

                                   ARTICLE XI.

                            MISCELLANEOUS PROVISIONS

      SECTION 11.1. Limitation of Rights of Holders.

      Except as set forth in Section 9.2, the death, bankruptcy, termination,
dissolution or incapacity of any Person having an interest, beneficial or
otherwise, in Trust Securities shall not operate to terminate this Trust
Agreement, nor annul, dissolve or terminate the Trust nor entitle the legal
representatives or heirs of such Person or any Holder for such Person, to claim
an accounting, take any action or bring any proceeding in any court for a
partition or winding up of the arrangements contemplated hereby, nor otherwise
affect the rights, obligations and liabilities of the parties hereto or any of
them.

      SECTION 11.2. Agreed Tax Treatment of Trust and Trust Securities.

      The parties hereto and, by its acceptance or acquisition of a Trust
Security or a beneficial interest therein, the Holder of, and any Person that
acquires a beneficial interest in, such Trust Security intend and agree to treat
the Trust as a grantor trust for United States federal, state and local tax
purposes, and to treat the Trust Securities (including all payments and proceeds
with respect to such Trust Securities) as undivided beneficial ownership
interests in the Trust Property (and payments and proceeds therefrom,
respectively) for United States federal, state and local tax purposes. The
provisions of this Trust Agreement shall be interpreted to further this
intention and agreement of the parties.

      SECTION 11.3. Amendment.

      (a)   This Trust Agreement may be amended from time to time by the
Property Trustee, the Administrative Trustees and the Holder of all the Common
Securities, without the consent of any Holder of the Preferred Securities, (i)
to cure any ambiguity, correct or supplement any provision herein that may be
defective or inconsistent with any other provision herein, or to make any other
provisions with respect to matters or questions arising under this Trust
Agreement, which shall not be inconsistent with the other provisions of this
Trust

                                       57
<PAGE>

Agreement, (ii) to modify, eliminate or add to any provisions of this Trust
Agreement to such extent as shall be necessary to ensure that the Trust will
neither be taxable as a corporation nor be classified as other than a grantor
trust for United States federal income tax purposes at all times that any Trust
Securities are Outstanding or to ensure that the Notes are treated as
indebtedness of the Depositor for United States federal income tax purposes, or
to ensure that the Trust will not be required to register as an "investment
company" under the Investment Company Act or (iii) to add to the covenants,
restrictions or obligations of the Depositor; provided, that in the case of
clauses (i), (ii) or (iii), such action shall not adversely affect in any
material respect the interests of any Holder.

      (b)   Except as provided in Section 11.3(c), any provision of this Trust
Agreement may be amended by the Property Trustee, the Administrative Trustees
and the Holder of all of the Common Securities and with (i) the consent of
Holders of at least a Majority in Liquidation Amount of the Preferred Securities
and (ii) receipt by the Trustees of an Opinion of Counsel to the effect that
such amendment or the exercise of any power granted to the Trustees in
accordance with such amendment will not cause the Trust to be taxable as a
corporation or classified as other than a grantor trust for United States
federal income tax purposes or affect the treatment of the Notes as indebtedness
of the Depositor for United States federal income tax purposes or affect the
Trust's exemption from status (or from any requirement to register) as an
"investment company" under the Investment Company Act.

      (c)   Notwithstanding any other provision of this Trust Agreement, without
the consent of each Holder of Trust Securities of an affected series, this Trust
Agreement may not be amended to (i) change the accrual rate, amount, currency or
timing of any Distribution on or the redemption price of the Trust Securities or
otherwise adversely affect the amount of any Distribution or other payment
required to be made in respect of the Trust Securities as of a specified date,
(ii) restrict or impair the right of a Holder to institute suit for the
enforcement of any such payment on or after such date, (iii) reduce the
percentage of aggregate Liquidation Amount of Outstanding Preferred Securities
in one or more series, the consent of whose Holders is required for any such
amendment, or the consent of whose Holders is required for any waiver of
compliance with any provision of this Trust Agreement or of defaults hereunder
and their consequences provided for in this Trust Agreement; (iv) impair or
adversely affect the rights and interests of the Holders in the Trust Property,
or permit the creation of any Lien on any portion of the Trust Property; or (v)
modify the definition of "Outstanding," this Section 11.3(c), Sections 4.1, 4.2,
4.3, 6.10(e) or Article IX.

      (d)   Notwithstanding any other provision of this Trust Agreement, no
Trustee shall enter into or consent to any amendment to this Trust Agreement
that would cause the Trust to be taxable as a corporation or to be classified as
other than a grantor trust for United States federal income tax purposes or that
would cause the Notes to fail or cease to be treated as indebtedness of the
Depositor for United States federal income tax purposes or that would cause the
Trust to fail or cease to qualify for the exemption from status (or from any
requirement to register) as an "investment company" under the Investment Company
Act.

      (e)   If any amendment to this Trust Agreement is made, the Administrative
Trustees or the Property Trustee shall promptly provide to the Depositor a copy
of such amendment.

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<PAGE>

      (f)   No Trustee shall be required to enter into any amendment to this
Trust Agreement that affects its own rights, duties or immunities under this
Trust Agreement. The Trustees shall be entitled to receive an Opinion of Counsel
and an Officers' Certificate stating that any amendment to this Trust Agreement
is in compliance with this Trust Agreement and all conditions precedent herein
provided for relating to such action have been met.

      (g)   No amendment or modification to this Trust Agreement that adversely
affects in any material respect the rights, duties, liabilities, indemnities or
immunities of the Delaware Trustee hereunder shall be permitted without the
prior written consent of the Delaware Trustee.

      SECTION 11.4. Separability.

      If any provision in this Trust Agreement or in the Securities Certificates
shall be invalid, illegal or unenforceable, the validity, legality and
enforceability of the remaining provisions shall not in any way be affected or
impaired thereby, and there shall be deemed substituted for the provision at
issue a valid, legal and enforceable provision as similar as possible to the
provision at issue.

      SECTION 11.5. Governing Law.

      THIS TRUST AGREEMENT AND THE RIGHTS AND OBLIGATIONS OF EACH OF THE
HOLDERS, THE TRUST, THE DEPOSITOR AND THE TRUSTEES WITH RESPECT TO THIS TRUST
AGREEMENT AND THE TRUST SECURITIES SHALL BE CONSTRUED AND ENFORCED IN ACCORDANCE
WITH AND GOVERNED BY THE LAWS OF THE STATE OF DELAWARE WITHOUT REFERENCE TO ITS
CONFLICTS OF LAWS PROVISIONS.

      SECTION 11.6. Successors.

      This Trust Agreement shall be binding upon and shall inure to the benefit
of any successor to the Depositor, the Trust and any Trustee, including any
successor by operation of law. Except in connection with a transaction involving
the Depositor that is permitted under Article VIII of the Indenture and pursuant
to which the assignee agrees in writing to perform the Depositor's obligations
hereunder, the Depositor shall not assign its obligations hereunder.

      SECTION 11.7. Headings.

      The Article and Section headings are for convenience only and shall not
affect the construction of this Trust Agreement.

      SECTION 11.8. Reports, Notices and Demands.

      (a)   Any report, notice, demand or other communication that by any
provision of this Trust Agreement is required or permitted to be given or served
to or upon any Holder or the Depositor may be given or served in writing
delivered in person, or by reputable, overnight courier, by telecopy or by
deposit thereof, first-class postage prepaid, in the United States mail,
addressed, (a) in the case of a Holder of Preferred Securities, to such Holder
as such Holder's name and address may appear on the Securities Register; and (b)
in the case of the Holder of all

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<PAGE>

the Common Securities or the Depositor, to Mercantile Bank Corporation, 5650
Byron Center Avenue SW, Wyoming, Michigan, 49509, Attention: Chief Financial
Officer, or to such other address as may be specified in a written notice by the
Holder of all the Common Securities or the Depositor, as the case may be, to the
Property Trustee. Such report, notice, demand or other communication to or upon
a Holder or the Depositor shall be deemed to have been given when received in
person, within one (1) Business Day following delivery by overnight courier,
when telecopied with receipt confirmed, or within three (3) Business Days
following delivery by mail, except that if a notice or other document is refused
delivery or cannot be delivered because of a changed address of which no notice
was given, such notice or other document shall be deemed to have been delivered
on the date of such refusal or inability to deliver.

      (b)   Any notice, demand or other communication that by any provision of
this Trust Agreement is required or permitted to be given or served to or upon
the Property Trustee, the Delaware Trustee, the Administrative Trustees, the
Trust, the Placement Agent, or the Purchaser shall be given in writing by
deposit thereof, first-class postage prepaid, in the U.S. mail, personal
delivery or facsimile transmission, addressed to such Person as follows: (a)
with respect to the Property Trustee to Wilmington Trust Company, Rodney Square
North, 1100 North Market Street, Wilmington, Delaware 19890-1600, Attention:
Corporate Trust Administration, facsimile no. (302) 636-4140; (b) with respect
to the Delaware Trustee, to Wilmington Trust Company, Rodney Square North, 1100
North Market Street, Wilmington, Delaware 19890-1600, Attention: Corporate Trust
Administration, facsimile no. (302) 636-4140; (c) with respect to the
Administrative Trustees, to them at the address above for notices to the
Depositor, marked "Attention: Administrative Trustees of Mercantile Bank Capital
Trust I," (d) with respect to the Trust, to its principal executive office
specified in Section 2.2, with a copy to the Property Trustee, (e) with respect
to the Placement Agent, to SunTrust Capital Markets, Inc., 303 Peachtree Street,
N.E., 24th Floor, Mail Code 3950, Atlanta, Georgia 30308, facsimile no. (404)
813-5000, and (f) with respect to the Purchaser, to STI Investment Management,
Inc., 2202 Polly Drummond Office Park, Newark, Delaware 19711, facsimile no.
(302) 737-3425. Such notice, demand or other communication to or upon the Trust,
the Property Trustee or the Administrative Trustees shall be deemed to have been
sufficiently given or made only upon actual receipt of the writing by the Trust,
the Property Trustee or the Administrative Trustees.

      SECTION 11.9. Agreement Not to Petition.

      Each of the Trustees and the Depositor agree for the benefit of the
Holders that, until at least one year and one day after the Trust has been
terminated in accordance with Article IX, they shall not file, or join in the
filing of, a petition against the Trust under any Bankruptcy Law or otherwise
join in the commencement of any proceeding against the Trust under any
Bankruptcy Law. If the Depositor takes action in violation of this Section 11.9,
the Property Trustee agrees, for the benefit of Holders, that at the expense of
the Depositor, it shall file an answer with the applicable bankruptcy court or
otherwise properly contest the filing of such petition by the Depositor against
the Trust or the commencement of such action and raise the defense that the
Depositor has agreed in writing not to take such action and should be estopped
and precluded therefrom and such other defenses, if any, as counsel for the
Property Trustee or the Trust may assert.

                                       60
<PAGE>

      This instrument may be executed in any number of counterparts, each of
which so executed shall be deemed to be an original, but all such counterparts
shall together constitute but one and the same instrument.

                [REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK]

                                       61
<PAGE>

      IN WITNESS WHEREOF, the parties hereto have executed this Amended and
Restated Trust Agreement as of the day and year first above written.

                                        Mercantile Bank Corporation,
                                        as Depositor

                                        By: /S/ GERALD R. JOHNSON, JR.
                                            ------------------------------------
                                            Gerald R. Johnson, Jr.
                                            Chairman and Chief Executive Officer

Wilmington Trust Company, as Property   Wilmington Trust Company, as Delaware
Trustee                                 Trustee

By: /S/ W. THOMAS MORRIS, II            By: /S/ W. THOMAS MORRIS, II
    -------------------------               ------------------------------------
    Name: W. Thomas Morris, II              Name: W. Thomas Morris, II
    Title: Senior Financial Services        Title: Senior Financial Services
            Officer                                 Officer

/S/ GERALD R. JOHNSON, JR.              /S/ CHARLES E. CHRISTMAS
-----------------------------           ----------------------------------------
Gerald R. Johnson, Jr.                  Charles E. Christmas
Administrative Trustee                  Administrative Trustee

/S/ MICHAEL H. PRICE
----------------------------
Michael H. Price
Administrative Trustee

<PAGE>

                                                                       Exhibit A

                              CERTIFICATE OF TRUST

                                       OF

                         Mercantile Bank Capital Trust I

            This Certificate of Trust of Mercantile Bank Capital Trust I (the
"Trust") is being duly executed and filed on behalf of the Trust by the
undersigned, as trustees, to form a statutory trust under the Delaware Statutory
Trust Act (12 Del. C. Section 3801 et seq.) (the "Act").

            1.    Name. The name of the statutory trust formed by this
Certificate of Trust is: Mercantile Bank Capital Trust I.

            2.    Trustee. The name and business address of the trustee of the
Trust with its principal place of business in the State of Delaware are
Wilmington Trust Company, Rodney Square North, 1100 North Market Street,
Wilmington, Delaware 19890-1600, Attention: Corporate Trust Administration.

            3.    Effective Date. This Certificate of Trust shall be effective
upon its filing with the Secretary of State of the State of Delaware.

            IN WITNESS WHEREOF, the undersigned have duly executed this
Certificate of Trust in accordance with Section 3811(a)(1) of the Act.

                                        Wilmington Trust Company, not in its
                                        individual capacity, but solely as
                                        Trustee

                                        By: ____________________________________
                                            Name:
                                            Title:

                                       A-1
<PAGE>

                                                                     Exhibit B-1

                [FORM OF SERIES A COMMON SECURITIES CERTIFICATE]

THIS COMMON SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933,
AS AMENDED, OR ANY STATE SECURITIES LAWS OR ANY OTHER APPLICABLE SECURITIES LAWS
AND MAY NOT BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED EXCEPT PURSUANT
TO AN EXEMPTION FROM REGISTRATION. THIS CERTIFICATE IS NOT TRANSFERABLE EXCEPT
IN COMPLIANCE WITH APPLICABLE LAW AND SECTION 5.11 OF THE TRUST AGREEMENT

Certificate Number                                495 Series A Common Securities

         C-A1                                                 September 16, 2004

                    Certificate Evidencing Common Securities

                                       of

                         Mercantile Bank Capital Trust I

                    Series A Floating Rate Common Securities

                 (liquidation amount $1,000 per Common Security)

      Mercantile Bank Capital Trust I, a statutory trust created under the laws
of the State of Delaware (the "Trust"), hereby certifies that Mercantile Bank
Corporation, a Michigan Corporation, (the "Holder") is the registered owner of
495 common securities of the Trust representing undivided common beneficial
interests in the assets of the Trust and designated the Mercantile Bank Capital
Trust I Series A Floating Rate Common Securities (liquidation amount $1,000 per
Common Security) (the "Common Securities"). Except in accordance with Section
5.11 of the Trust Agreement (as defined below), the Common Securities are not
transferable and, to the fullest extent permitted by law, any attempted transfer
hereof other than in accordance therewith shall be void. The designations,
rights, privileges, restrictions, preferences and other terms and provisions of
the Common Securities are set forth in, and this certificate and the Common
Securities represented hereby are issued and shall in all respects be subject to
the terms and provisions of, the Amended and Restated Trust Agreement of the
Trust, dated as of September 16, 2004, as the same may be amended from time to
time (the "Trust Agreement"), among Mercantile Bank Corporation, as Depositor,
Wilmington Trust Company, as Property Trustee, Wilmington Trust Company, as
Delaware Trustee, the Administrative Trustees named therein and the Holders,
from time to time, of Trust Securities. The Trust will furnish a copy of the
Trust Agreement to the Holder without charge upon written request to the Trust
at its principal place of business or registered office.

                                      B-1-1
<PAGE>

      Upon receipt of this certificate, the Holder is bound by the Trust
Agreement and is entitled to the benefits thereunder.

      This Common Securities Certificate shall be governed by and construed in
accordance with the laws of the State of Delaware.

      Terms used but not defined herein have the meanings set forth in the Trust
Agreement.

      IN WITNESS WHEREOF, one of the Administrative Trustees of the Trust has
executed on behalf of the Trust this certificate this 16th day of September,
2004.

                                        MERCANTILE BANK CAPITAL TRUST I

                                        By: ____________________________________
                                            Name:
                                            Administrative Trustee

                                      B-1-2
<PAGE>

                                                                     Exhibit B-2

                [FORM OF SERIES B COMMON SECURITIES CERTIFICATE]

THIS COMMON SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933,
AS AMENDED, OR ANY STATE SECURITIES LAWS OR ANY OTHER APPLICABLE SECURITIES LAWS
AND MAY NOT BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED EXCEPT PURSUANT
TO AN EXEMPTION FROM REGISTRATION. THIS CERTIFICATE IS NOT TRANSFERABLE EXCEPT
IN COMPLIANCE WITH APPLICABLE LAW AND SECTION 5.11 OF THE TRUST AGREEMENT

Certificate Number                                495 Series B Common Securities

       C-B1                                                    December 10, 2004

                    Certificate Evidencing Common Securities

                                       of

                         Mercantile Bank Capital Trust I

                    Series B Floating Rate Common Securities

                 (liquidation amount $1,000 per Common Security)

      Mercantile Bank Capital Trust I, a statutory trust created under the laws
of the State of Delaware (the "Trust"), hereby certifies that Mercantile Bank
Corporation, a Michigan Corporation, (the "Holder") is the registered owner of
495 common securities of the Trust representing undivided common beneficial
interests in the assets of the Trust and designated the Mercantile Bank Capital
Trust I Series B Floating Rate Common Securities (liquidation amount $1,000 per
Common Security) (the "Common Securities"). Except in accordance with Section
5.11 of the Trust Agreement (as defined below), the Common Securities are not
transferable and, to the fullest extent permitted by law, any attempted transfer
hereof other than in accordance therewith shall be void. The designations,
rights, privileges, restrictions, preferences and other terms and provisions of
the Common Securities are set forth in, and this certificate and the Common
Securities represented hereby are issued and shall in all respects be subject to
the terms and provisions of, the Amended and Restated Trust Agreement of the
Trust, dated as of September 16, 2004, as the same may be amended from time to
time (the "Trust Agreement"), among Mercantile Bank Corporation, as Depositor,
Wilmington Trust Company, as Property Trustee, Wilmington Trust Company, as
Delaware Trustee, the Administrative Trustees named therein and the Holders,
from time to time, of Trust Securities. The Trust will furnish a copy of the
Trust Agreement to the Holder without charge upon written request to the Trust
at its principal place of business or registered office.

                                      B-2-1
<PAGE>

      Upon receipt of this certificate, the Holder is bound by the Trust
Agreement and is entitled to the benefits thereunder.

      This Common Securities Certificate shall be governed by and construed in
accordance with the laws of the State of Delaware.

      Terms used but not defined herein have the meanings set forth in the Trust
Agreement.

      IN WITNESS WHEREOF, one of the Administrative Trustees of the Trust has
executed on behalf of the Trust this certificate this __ day of _______, 2004.

                                        MERCANTILE BANK CAPITAL TRUST I

                                        By: ____________________________________
                                            Name:
                                            Administrative Trustee

                                      B-2-2
<PAGE>

                                                                     Exhibit C-1

               [FORM OF SERIES A PREFERRED SECURITIES CERTIFICATE]

      THIS PREFERRED SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE
TRUST AGREEMENT HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF THE
DEPOSITORY TRUST COMPANY ("DTC") OR A NOMINEE OF DTC. THIS PREFERRED SECURITY IS
EXCHANGEABLE FOR PREFERRED SECURITIES REGISTERED IN THE NAME OF A PERSON OTHER
THAN DTC OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE TRUST
AGREEMENT, AND NO TRANSFER OF THIS PREFERRED SECURITY (OTHER THAN A TRANSFER OF
THIS PREFERRED SECURITY AS A WHOLE BY DTC TO A NOMINEE OF DTC OR BY A NOMINEE OF
DTC TO DTC OR ANOTHER NOMINEE OF DTC) MAY BE REGISTERED EXCEPT IN LIMITED
CIRCUMSTANCES.

      UNLESS THIS PREFERRED SECURITY IS PRESENTED BY AN AUTHORIZED
REPRESENTATIVE OF DTC TO MERCANTILE BANK CAPITAL TRUST I OR ITS AGENT FOR
REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY PREFERRED SECURITY ISSUED
IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS REQUESTED BY AN
AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT HEREON IS MADE TO CEDE & CO.
OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC),
ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY
PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN
INTEREST HEREIN. THE PREFERRED SECURITIES REPRESENTED BY THIS CERTIFICATE WERE
ORIGINALLY ISSUED IN A TRANSACTION EXEMPT FROM REGISTRATION UNDER THE SECURITIES
ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), AND SUCH PREFERRED SECURITIES OR
ANY INTEREST THEREIN MAY NOT BE OFFERED, SOLD OR OTHERWISE TRANSFERRED IN THE
ABSENCE OF SUCH REGISTRATION OR AN APPLICABLE EXEMPTION THEREFROM. EACH
PURCHASER OF ANY PREFERRED SECURITIES IS HEREBY NOTIFIED THAT THE SELLER OF THE
PREFERRED SECURITIES MAY BE RELYING ON THE EXEMPTION FROM THE PROVISIONS OF
SECTION 5 OF THE SECURITIES ACT PROVIDED BY RULE 144A UNDER THE SECURITIES ACT.

      THE HOLDER OF THE PREFERRED SECURITIES REPRESENTED BY THIS CERTIFICATE
AGREES FOR THE BENEFIT OF THE TRUST AND THE DEPOSITOR THAT (A) SUCH PREFERRED
SECURITIES MAY BE OFFERED, RESOLD OR OTHERWISE TRANSFERRED ONLY (I) TO THE
TRUST, (II) TO A PERSON WHOM THE SELLER REASONABLY BELIEVES IS A "QUALIFIED
INSTITUTIONAL BUYER" (AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT) IN A
TRANSACTION MEETING THE REQUIREMENTS OF RULE 144A, (III) TO AN INSTITUTIONAL
"ACCREDITED INVESTOR" WITHIN THE MEANING OF SUBPARAGRAPH (a) (1), (2), (3) OR
(7) OF RULE 501 UNDER THE SECURITIES ACT THAT IS ACQUIRING THE SECURITY FOR ITS
OWN ACCOUNT, OR FOR THE ACCOUNT OF AN "ACCREDITED INVESTOR," FOR INVESTMENT
PURPOSES AND NOT WITH A VIEW TO, OR FOR

                                      C-1-1
<PAGE>

OFFER OR SALE IN CONNECTION WITH, ANY DISTRIBUTION IN VIOLATION OF THE
SECURITIES ACT, (IV) PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE
SECURITIES ACT OR (V) PURSUANT TO AN EXEMPTION FROM THE SECURITIES ACT, IN EACH
CASE IN ACCORDANCE WITH ANY APPLICABLE SECURITIES LAWS OF ANY STATE OF THE
UNITED STATES OR ANY OTHER APPLICABLE JURISDICTION AND, IN THE CASE OF (III) OR
(V), SUBJECT TO THE RIGHT OF THE TRUST AND THE DEPOSITOR TO REQUIRE AN OPINION
OF COUNSEL AND OTHER INFORMATION SATISFACTORY TO EACH OF THEM AND (B) THE HOLDER
WILL NOTIFY ANY PURCHASER OF ANY PREFERRED SECURITIES FROM IT OF THE RESALE
RESTRICTIONS REFERRED TO IN (A) ABOVE.

      THE PREFERRED SECURITIES WILL BE ISSUED AND MAY BE TRANSFERRED ONLY IN
BLOCKS HAVING AN AGGREGATE LIQUIDATION AMOUNT OF NOT LESS THAN $100,000. TO THE
FULLEST EXTENT PERMITTED BY LAW, ANY ATTEMPTED TRANSFER OF PREFERRED SECURITIES
OR ANY INTEREST THEREIN IN A BLOCK HAVING AN AGGREGATE LIQUIDATION AMOUNT OF
LESS THAN $100,000 AND MULTIPLES OF $1,000 IN EXCESS THEREOF SHALL BE DEEMED TO
BE VOID AND OF NO LEGAL EFFECT WHATSOEVER. TO THE FULLEST EXTENT PERMITTED BY
LAW, ANY SUCH PURPORTED TRANSFEREE SHALL BE DEEMED NOT TO BE THE HOLDER OF SUCH
PREFERRED SECURITIES FOR ANY PURPOSE, INCLUDING, BUT NOT LIMITED TO, THE RECEIPT
OF LIQUIDATION AMOUNT OF OR DISTRIBUTIONS ON SUCH PREFERRED SECURITIES OR ANY
INTEREST THEREIN, AND SUCH PURPORTED TRANSFEREE SHALL BE DEEMED TO HAVE NO
INTEREST WHATSOEVER IN SUCH PREFERRED SECURITIES.

      THE HOLDER OF THIS SECURITY OR ANY INTEREST THEREIN BY ITS ACCEPTANCE
HEREOF OR THEREOF ALSO AGREES, REPRESENTS AND WARRANTS THAT IT IS NOT AN
EMPLOYEE BENEFIT, INDIVIDUAL RETIREMENT ACCOUNT OR OTHER PLAN OR ARRANGEMENT
SUBJECT TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS
AMENDED ("ERISA"), OR SECTION 4975 OF THE INTERNAL REVENUE CODE OF 1986, AS
AMENDED (THE "CODE") (EACH A "PLAN"), OR AN ENTITY WHOSE UNDERLYING ASSETS
INCLUDE "PLAN ASSETS" BY REASON OF ANY PLAN'S INVESTMENT IN THE ENTITY, AND NO
PERSON INVESTING "PLAN ASSETS" OF ANY PLAN MAY ACQUIRE OR HOLD THIS PREFERRED
SECURITY OR ANY INTEREST THEREIN, UNLESS SUCH PURCHASER OR HOLDER IS ELIGIBLE
FOR THE EXEMPTIVE RELIEF AVAILABLE UNDER U.S. DEPARTMENT OF LABOR PROHIBITED
TRANSACTION CLASS EXEMPTION 96-23, 95-60, 91-38, 90-1 OR 84-14 OR ANOTHER
APPLICABLE EXEMPTION OR ITS PURCHASE AND HOLDING OF THIS SECURITY OR ANY
INTEREST THEREIN IS NOT PROHIBITED BY SECTION 406 OF ERISA OR SECTION 4975 OF
THE CODE WITH RESPECT TO SUCH PURCHASE OR HOLDING. ANY PURCHASER OR HOLDER OF
THE PREFERRED SECURITIES OR ANY INTEREST THEREIN WILL BE DEEMED TO HAVE
REPRESENTED BY ITS PURCHASE AND HOLDING THEREOF THAT EITHER (i) IT IS NOT AN
EMPLOYEE BENEFIT PLAN WITHIN THE MEANING OF SECTION 3(3) OF ERISA, OR A PLAN TO
WHICH SECTION 4975 OF THE CODE IS APPLICABLE, A TRUSTEE OR OTHER PERSON ACTING
ON BEHALF OF AN EMPLOYEE BENEFIT PLAN OR PLAN, OR ANY OTHER PERSON OR

                                      C-1-2
<PAGE>

ENTITY USING THE ASSETS OF ANY EMPLOYEE BENEFIT PLAN OR PLAN TO FINANCE SUCH
PURCHASE, OR (ii) SUCH PURCHASE OR HOLDING WILL NOT RESULT IN A PROHIBITED
TRANSACTION UNDER SECTION 406 OF ERISA OR SECTION 4975 OF THE CODE FOR WHICH
THERE IS NO APPLICABLE STATUTORY OR ADMINISTRATIVE EXEMPTION.

      THIS OBLIGATION IS NOT A DEPOSIT AND IS NOT INSURED BY THE UNITED STATES
OR ANY AGENCY OR FUND OF THE UNITED STATES, INCLUDING THE FEDERAL DEPOSIT
INSURANCE CORPORATION (THE "FDIC").

Certificate Number G-A1                     16,000 Series A Preferred Securities
                                        $16,000,000 Aggregate Liquidation Amount

                                                              September 16, 2004

                                    CUSIP NO.

                                   587374 AA 7

                   Certificate Evidencing Preferred Securities

                                       of

                         Mercantile Bank Capital Trust I

                   Series A Floating Rate Preferred Securities
               (liquidation amount $1,000 per Preferred Security)

      Mercantile Bank Capital Trust I, a statutory trust created under the laws
of the State of Delaware (the "Trust"), hereby certifies that Cede & Co. (the
"Holder") is the registered owner of 16,000 Preferred Securities or such other
number of Preferred Securities represented hereby as may be set forth in the
records of the Securities Registrar hereinafter referred to in accordance with
the Trust Agreement (as defined below), of the Trust representing an undivided
preferred beneficial interest in the assets of the Trust and designated the
Mercantile Bank Capital Trust I Series A Floating Rate Preferred Securities
(liquidation amount $1,000 per Preferred Security) (the "Series A Preferred
Securities"). The Series A Preferred Securities are transferable on the books
and records of the Trust, in person or by a duly authorized attorney, upon
surrender of this certificate duly endorsed and in proper form for transfer as
provided in Section 5.7 of the Trust Agreement (as defined below). The
designations, rights, privileges, restrictions, preferences and other terms and
provisions of the Series A Preferred Securities are set forth in, and this
certificate and the Series A Preferred Securities represented hereby are issued
and shall in all respects be subject to the terms and provisions of, the Amended
and Restated Trust Agreement of the Trust, dated as of September 16, 2004, as
the same may be amended from time to time (the "Trust Agreement"), among
Mercantile Bank Corporation, a Michigan corporation, as Depositor, Wilmington
Trust Company, as Property Trustee, Wilmington Trust Company, as Delaware

                                      C-1-3
<PAGE>

Trustee, the Administrative Trustees named therein and the Holders, from time to
time, of Trust Securities. The Holder is entitled to the benefits of the
Guarantee Agreement entered into by Mercantile Bank Corporation and Wilmington
Trust Company, as Guarantee Trustee, dated as of September 16, 2004, as the same
may be amended from time to time (the "Guarantee Agreement"), to the extent
provided therein. The Trust will furnish a copy of each of the Trust Agreement
and the Guarantee Agreement to the Holder without charge upon written request to
the Property Trustee at its principal place of business or registered office.

      Upon receipt of this certificate, the Holder is bound by the Trust
Agreement and is entitled to the benefits thereunder.

      This Preferred Securities Certificate shall be governed by and construed
in accordance with the laws of the State of Delaware.

      All capitalized terms used but not defined in this Preferred Securities
Certificate are used with the meanings specified in the Trust Agreement,
including the Schedules and Exhibits thereto.

      IN WITNESS WHEREOF, one of the Administrative Trustees of the Trust has
executed on behalf of the Trust this certificate this 16th day of September,
2004.

                                        MERCANTILE BANK CAPITAL TRUST I

                                        By: ____________________________________
                                            Name:
                                            Administrative Trustee

      This is one of the Preferred Securities referred to in the
within-mentioned Trust Agreement.

Dated:

                                          Wilmington Trust Company, not in its
                                          individual capacity, but solely as
                                          Property Trustee

                                          By: __________________________________
                                              Authorized officer

                                      C-1-4
<PAGE>

                          [FORM OF REVERSE OF SECURITY]

      The Trust promises to pay Distributions from the date of original
issuance, or from the most recent Distribution Date to which Distributions have
been paid or duly provided for, quarterly (subject to deferral as set forth
herein) in arrears on January 18, April 18, July 18 and October 18 of each year,
commencing on October 18, 2004, at an annual rate equal to 4.06% beginning on
(and including) the date of original issuance and ending on (but excluding)
October 18, 2004 and at an annual rate for each successive period beginning on
(and including) October 18, 2004, and each successive Distribution Date, and
ending on (but excluding) the next succeeding Distribution Date equal to LIBOR
plus 2.18% of the Liquidation Amount of the Series A Preferred Securities
represented by this Preferred Securities Certificate, together with any
Additional Interest Amounts, in respect to such period.

      Distributions on the Series A Trust Securities shall be made by the Paying
Agent from the Payment Account and shall be payable on each Distribution Date
only to the extent that the Trust has funds then on hand and available in the
Payment Account for the payment of such Distributions.

      In the event (and to the extent) that the Depositor exercises its right
under the Indenture to defer the payment of interest on the Series A Notes,
Distributions on the Series A Preferred Securities shall be deferred.

      Under the Indenture, so long as no Note Event of Default pursuant to
paragraphs (c), (e) or (f) of Section 5.1 of the Indenture has occurred and is
continuing, the Depositor shall have the right, at any time and from time to
time during the term of the Series A Notes, to defer the payment of interest on
such Notes for a period of up to twenty (20) consecutive quarterly interest
payment periods (each such extended interest payment period, an "Extension
Period"), during which Extension Period no interest shall be due and payable
(except any Additional Tax Sums that may be due and payable). No interest on
such Notes shall be due and payable during an Extension Period, except at the
end thereof, but each installment of interest that would otherwise have been due
and payable during such Extension Period shall bear Additional Interest (to the
extent payment of such interest would be legally enforceable) at a variable rate
per annum, reset quarterly, equal to LIBOR plus 2.18%, compounded quarterly,
from the dates on which amounts would have otherwise been due and payable until
paid or until funds for the payment thereof have been made available for
payment. If Distributions are deferred, the deferred Distributions (including
Additional Interest Amounts) shall be paid on the date that the related
Extension Period terminates to Holders (as defined in the Trust Agreement) of
the Series A Trust Securities as they appear on the books and records of the
Trust on the record date immediately preceding such termination date.

      Distributions on the Series A Trust Securities must be paid on the dates
payable (after giving effect to any Extension Period) to the extent that the
Trust has funds available for the payment of such Distributions in the Payment
Account of the Trust. The Trust's funds available for Distribution to the
Holders of the Series A Preferred Securities will be limited to payments
received from the Depositor. The payment of Distributions out of moneys held by
the Trust is guaranteed by the Depositor pursuant to the Guarantee Agreement.

                                      C-1-5
<PAGE>

      During any such Extension Period, the Depositor shall not (i) declare or
pay any dividends or distributions on, or redeem, purchase, acquire or make a
liquidation payment with respect to, any of the Depositor's capital stock or
(ii) make any payment of principal of or any interest or premium on or repay,
repurchase or redeem any debt securities of the Depositor that rank pari passu
in all respects with or junior in interest to the Notes (other than (a)
repurchases, redemptions or other acquisitions of shares of capital stock of the
Depositor in connection with (1) any employment contract, benefit plan or other
similar arrangement with or for the benefit of any one or more employees,
officers, directors or consultants, (2) a dividend reinvestment or stockholder
stock purchase plan or (3) the issuance of capital stock of the Depositor (or
securities convertible into or exercisable for such capital stock) as
consideration in an acquisition transaction entered into prior to the applicable
Extension Period, (b) as a result of an exchange or conversion of any class or
series of the Depositor's capital stock (or any capital stock of a Subsidiary
(as defined in the Indenture) of the Depositor) for any class or series of the
Depositor's capital stock or of any class or series of the Depositor's
indebtedness for any class or series of the Depositor's capital stock, (c) the
purchase of fractional interests in shares of the Depositor's capital stock
pursuant to the conversion or exchange provisions of such capital stock or the
security being converted or exchanged, (d) any declaration of a dividend in
connection with any Rights Plan (as defined in the Indenture), the issuance of
rights, stock or other property under any Rights Plan, or the redemption or
repurchase of rights pursuant thereto or (e) any dividend in the form of stock,
warrants, options or other rights where the dividend stock or the stock issuable
upon exercise of such warrants, options or other rights is the same stock as
that on which the dividend is being paid or ranks pari passu with or junior to
such stock).

      On each Series A Note Redemption Date, on the stated maturity (or any date
of principal repayment upon early maturity) of the Series A Notes and on each
other date on (or in respect of) which any principal on the Notes is repaid, the
Trust will be required to redeem a Like Amount of Series A Trust Securities at
the Redemption Price. Under the Indenture, the Series A Notes may be redeemed by
the Depositor on any Interest Payment Date, at the Depositor's option, on or
after October 18, 2009 in whole or in part from time to time at a redemption
price equal to one hundred percent (100%) of the principal amount thereof or the
redeemed portion thereof, as applicable, together, in the case of any such
redemption, with accrued interest, including any Additional Interest, to but
excluding the date fixed for redemption; provided, that the Depositor shall have
received the prior approval of the Federal Reserve if then required. The Notes
may also be redeemed by the Depositor, at its option, at any time, in whole but
not in part, upon the occurrence of a Capital Disqualification Event, an
Investment Company Event or a Tax Event at the Special Event Redemption Price.

      The Series A Trust Securities redeemed on each Redemption Date shall be
redeemed at the Redemption Price with the proceeds from the contemporaneous
redemption or payment at maturity of the Series A Notes. Redemptions of the
Series A Trust Securities (or portion thereof) shall be made and the Redemption
Price shall be payable on each Redemption Date only to the extent that the Trust
has funds then on hand and available in the Payment Account for the payment of
such Redemption Price.

      Payments of Distributions (including any Additional Interest Amounts), the
Redemption Price, Liquidation Amount or any other amounts in respect of the
Series A Preferred Securities shall be made by wire transfer at such place and
to such account at a banking institution in the

                                      C-1-6

<PAGE>

United States as may be designated in writing at least ten (10) Business Days
prior to the date for payment by the Person entitled thereto unless proper
written transfer instructions have not been received by the relevant record
date, in which case such payments shall be made by check mailed to the address
of such Person as such address shall appear in the Security Register. If any
Series A Preferred Securities are held by a Depositary, such Distributions shall
be made to the Depositary in immediately available funds.

      The indebtedness evidenced by the Series A Notes is, to the extent
provided in the Indenture, subordinate and junior in right of payment to the
prior payment in full of all Senior Debt (as defined in the Indenture), and this
Security is issued subject to the provisions of the Indenture with respect
thereto.

                                      C-1-7
<PAGE>

                                   ASSIGNMENT

      FOR VALUE RECEIVED, the undersigned assigns and transfers this Preferred
Securities Certificate to:

        (Insert assignee's social security or tax identification number)

                    (Insert address and zip code of assignee)

and irrevocably appoints

agent to transfer this Preferred Securities Certificate on the books of the
Trust. The agent may substitute another to act for him or her.

Date:       ____________________________

Signature:  ____________________________________________________________________
               (Sign exactly as your name appears on the other side of this
                            Preferred Securities Certificate)

The signature(s) should be guaranteed by an eligible guarantor institution
(banks, stockbrokers, savings and loan associations and credit unions with
membership in an approved signature guarantee medallion program), pursuant to
S.E.C. Rule 17Ad-15.

                                      C-1-8
<PAGE>

                                                                     Exhibit C-2

               [FORM OF SERIES B PREFERRED SECURITIES CERTIFICATE]

      THIS PREFERRED SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE
TRUST AGREEMENT HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF THE
DEPOSITORY TRUST COMPANY ("DTC") OR A NOMINEE OF DTC. THIS PREFERRED SECURITY IS
EXCHANGEABLE FOR PREFERRED SECURITIES REGISTERED IN THE NAME OF A PERSON OTHER
THAN DTC OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE TRUST
AGREEMENT, AND NO TRANSFER OF THIS PREFERRED SECURITY (OTHER THAN A TRANSFER OF
THIS PREFERRED SECURITY AS A WHOLE BY DTC TO A NOMINEE OF DTC OR BY A NOMINEE OF
DTC TO DTC OR ANOTHER NOMINEE OF DTC) MAY BE REGISTERED EXCEPT IN LIMITED
CIRCUMSTANCES.

      UNLESS THIS PREFERRED SECURITY IS PRESENTED BY AN AUTHORIZED
REPRESENTATIVE OF DTC TO MERCANTILE BANK CAPITAL TRUST I OR ITS AGENT FOR
REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY PREFERRED SECURITY ISSUED
IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS REQUESTED BY AN
AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT HEREON IS MADE TO CEDE & CO.
OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC),
ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY
PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN
INTEREST HEREIN. THE PREFERRED SECURITIES REPRESENTED BY THIS CERTIFICATE WERE
ORIGINALLY ISSUED IN A TRANSACTION EXEMPT FROM REGISTRATION UNDER THE SECURITIES
ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), AND SUCH PREFERRED SECURITIES OR
ANY INTEREST THEREIN MAY NOT BE OFFERED, SOLD OR OTHERWISE TRANSFERRED IN THE
ABSENCE OF SUCH REGISTRATION OR AN APPLICABLE EXEMPTION THEREFROM. EACH
PURCHASER OF ANY PREFERRED SECURITIES IS HEREBY NOTIFIED THAT THE SELLER OF THE
PREFERRED SECURITIES MAY BE RELYING ON THE EXEMPTION FROM THE PROVISIONS OF
SECTION 5 OF THE SECURITIES ACT PROVIDED BY RULE 144A UNDER THE SECURITIES ACT.

      THE HOLDER OF THE PREFERRED SECURITIES REPRESENTED BY THIS CERTIFICATE
AGREES FOR THE BENEFIT OF THE TRUST AND THE DEPOSITOR THAT (A) SUCH PREFERRED
SECURITIES MAY BE OFFERED, RESOLD OR OTHERWISE TRANSFERRED ONLY (I) TO THE
TRUST, (II) TO A PERSON WHOM THE SELLER REASONABLY BELIEVES IS A "QUALIFIED
INSTITUTIONAL BUYER" (AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT) IN A
TRANSACTION MEETING THE REQUIREMENTS OF RULE 144A, (III) TO AN INSTITUTIONAL
"ACCREDITED INVESTOR" WITHIN THE MEANING OF SUBPARAGRAPH (a) (1), (2), (3) OR
(7) OF RULE 501 UNDER THE SECURITIES ACT THAT IS ACQUIRING THE SECURITY FOR ITS
OWN ACCOUNT, OR FOR THE ACCOUNT OF AN "ACCREDITED INVESTOR," FOR INVESTMENT
PURPOSES AND NOT WITH A VIEW TO, OR FOR OFFER OR SALE IN CONNECTION WITH, ANY
DISTRIBUTION IN VIOLATION OF

                                      C-2-1
<PAGE>

THE SECURITIES ACT, (IV) PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER
THE SECURITIES ACT OR (V) PURSUANT TO AN EXEMPTION FROM THE SECURITIES ACT, IN
EACH CASE IN ACCORDANCE WITH ANY APPLICABLE SECURITIES LAWS OF ANY STATE OF THE
UNITED STATES OR ANY OTHER APPLICABLE JURISDICTION AND, IN THE CASE OF (III) OR
(V), SUBJECT TO THE RIGHT OF THE TRUST AND THE DEPOSITOR TO REQUIRE AN OPINION
OF COUNSEL AND OTHER INFORMATION SATISFACTORY TO EACH OF THEM AND (B) THE HOLDER
WILL NOTIFY ANY PURCHASER OF ANY PREFERRED SECURITIES FROM IT OF THE RESALE
RESTRICTIONS REFERRED TO IN (A) ABOVE.

      THE PREFERRED SECURITIES WILL BE ISSUED AND MAY BE TRANSFERRED ONLY IN
BLOCKS HAVING AN AGGREGATE LIQUIDATION AMOUNT OF NOT LESS THAN $100,000. TO THE
FULLEST EXTENT PERMITTED BY LAW, ANY ATTEMPTED TRANSFER OF PREFERRED SECURITIES
OR ANY INTEREST THEREIN IN A BLOCK HAVING AN AGGREGATE LIQUIDATION AMOUNT OF
LESS THAN $100,000 AND MULTIPLES OF $1,000 IN EXCESS THEREOF SHALL BE DEEMED TO
BE VOID AND OF NO LEGAL EFFECT WHATSOEVER. TO THE FULLEST EXTENT PERMITTED BY
LAW, ANY SUCH PURPORTED TRANSFEREE SHALL BE DEEMED NOT TO BE THE HOLDER OF SUCH
PREFERRED SECURITIES FOR ANY PURPOSE, INCLUDING, BUT NOT LIMITED TO, THE RECEIPT
OF LIQUIDATION AMOUNT OF OR DISTRIBUTIONS ON SUCH PREFERRED SECURITIES OR ANY
INTEREST THEREIN, AND SUCH PURPORTED TRANSFEREE SHALL BE DEEMED TO HAVE NO
INTEREST WHATSOEVER IN SUCH PREFERRED SECURITIES.

      THE HOLDER OF THIS SECURITY OR ANY INTEREST THEREIN BY ITS ACCEPTANCE
HEREOF OR THEREOF ALSO AGREES, REPRESENTS AND WARRANTS THAT IT IS NOT AN
EMPLOYEE BENEFIT, INDIVIDUAL RETIREMENT ACCOUNT OR OTHER PLAN OR ARRANGEMENT
SUBJECT TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS
AMENDED ("ERISA"), OR SECTION 4975 OF THE INTERNAL REVENUE CODE OF 1986, AS
AMENDED (THE "CODE") (EACH A "PLAN"), OR AN ENTITY WHOSE UNDERLYING ASSETS
INCLUDE "PLAN ASSETS" BY REASON OF ANY PLAN'S INVESTMENT IN THE ENTITY, AND NO
PERSON INVESTING "PLAN ASSETS" OF ANY PLAN MAY ACQUIRE OR HOLD THIS PREFERRED
SECURITY OR ANY INTEREST THEREIN, UNLESS SUCH PURCHASER OR HOLDER IS ELIGIBLE
FOR THE EXEMPTIVE RELIEF AVAILABLE UNDER U.S. DEPARTMENT OF LABOR PROHIBITED
TRANSACTION CLASS EXEMPTION 96-23, 95-60, 91-38, 90-1 OR 84-14 OR ANOTHER
APPLICABLE EXEMPTION OR ITS PURCHASE AND HOLDING OF THIS SECURITY OR ANY
INTEREST THEREIN IS NOT PROHIBITED BY SECTION 406 OF ERISA OR SECTION 4975 OF
THE CODE WITH RESPECT TO SUCH PURCHASE OR HOLDING. ANY PURCHASER OR HOLDER OF
THE PREFERRED SECURITIES OR ANY INTEREST THEREIN WILL BE DEEMED TO HAVE
REPRESENTED BY ITS PURCHASE AND HOLDING THEREOF THAT EITHER (i) IT IS NOT AN
EMPLOYEE BENEFIT PLAN WITHIN THE MEANING OF SECTION 3(3) OF ERISA, OR A PLAN TO
WHICH SECTION 4975 OF THE CODE IS APPLICABLE, A TRUSTEE OR OTHER PERSON ACTING
ON BEHALF OF AN EMPLOYEE BENEFIT PLAN OR PLAN, OR ANY OTHER PERSON OR ENTITY
USING THE ASSETS OF ANY EMPLOYEE BENEFIT PLAN OR PLAN TO

                                      C-2-2
<PAGE>

FINANCE SUCH PURCHASE, OR (ii) SUCH PURCHASE OR HOLDING WILL NOT RESULT IN A
PROHIBITED TRANSACTION UNDER SECTION 406 OF ERISA OR SECTION 4975 OF THE CODE
FOR WHICH THERE IS NO APPLICABLE STATUTORY OR ADMINISTRATIVE EXEMPTION.

      THIS OBLIGATION IS NOT A DEPOSIT AND IS NOT INSURED BY THE UNITED STATES
OR ANY AGENCY OR FUND OF THE UNITED STATES, INCLUDING THE FEDERAL DEPOSIT
INSURANCE CORPORATION (THE "FDIC").

Certificate Number G-B1                     16,000 Series B Preferred Securities
                                        $16,000,000 Aggregate Liquidation Amount

                                                       ___________________, 2004

                                    CUSIP NO.

                                _________________

                   Certificate Evidencing Preferred Securities

                                       of

                         Mercantile Bank Capital Trust I

                   Series B Floating Rate Preferred Securities
               (liquidation amount $1,000 per Preferred Security)

      Mercantile Bank Capital Trust I, a statutory trust created under the laws
of the State of Delaware (the "Trust"), hereby certifies that Cede & Co. (the
"Holder") is the registered owner of 16,000 Preferred Securities or such other
number of Preferred Securities represented hereby as may be set forth in the
records of the Securities Registrar hereinafter referred to in accordance with
the Trust Agreement (as defined below), of the Trust representing an undivided
preferred beneficial interest in the assets of the Trust and designated the
Mercantile Bank Capital Trust I Series B Floating Rate Preferred Securities
(liquidation amount $1,000 per Preferred Security) (the "Series B Preferred
Securities"). The Series B Preferred Securities are transferable on the books
and records of the Trust, in person or by a duly authorized attorney, upon
surrender of this certificate duly endorsed and in proper form for transfer as
provided in Section 5.7 of the Trust Agreement (as defined below). The
designations, rights, privileges, restrictions, preferences and other terms and
provisions of the Series B Preferred Securities are set forth in, and this
certificate and the Series B Preferred Securities represented hereby are issued
and shall in all respects be subject to the terms and provisions of, the Amended
and Restated Trust Agreement of the Trust, dated as of September 16, 2004, as
the same may be amended from time to time (the "Trust Agreement"), among
Mercantile Bank Corporation, a Michigan corporation, as Depositor, Wilmington
Trust Company, as Property Trustee, Wilmington Trust Company, as Delaware

                                      C-2-3
<PAGE>

Trustee, the Administrative Trustees named therein and the Holders, from time to
time, of Trust Securities. The Holder is entitled to the benefits of the
Guarantee Agreement entered into by Mercantile Bank Corporation and Wilmington
Trust Company, as Guarantee Trustee, dated as of September 16, 2004, as the same
may be amended from time to time (the "Guarantee Agreement"), to the extent
provided therein. The Trust will furnish a copy of each of the Trust Agreement
and the Guarantee Agreement to the Holder without charge upon written request to
the Property Trustee at its principal place of business or registered office.

      Upon receipt of this certificate, the Holder is bound by the Trust
Agreement and is entitled to the benefits thereunder.

      This Preferred Securities Certificate shall be governed by and construed
in accordance with the laws of the State of Delaware.

      All capitalized terms used but not defined in this Preferred Securities
Certificate are used with the meanings specified in the Trust Agreement,
including the Schedules and Exhibits thereto.

      IN WITNESS WHEREOF, one of the Administrative Trustees of the Trust has
executed on behalf of the Trust this certificate this __ day of __________,
____.

                                        MERCANTILE BANK CAPITAL TRUST I

                                        By: ____________________________________
                                            Name:
                                            Administrative Trustee

      This is one of the Preferred Securities referred to in the
within-mentioned Trust Agreement.

Dated:

                                          Wilmington Trust Company, not in its
                                          individual capacity, but solely as
                                          Property Trustee

                                          By: __________________________________
                                              Authorized officer

                                      C-2-4
<PAGE>

                          [FORM OF REVERSE OF SECURITY]

      The Trust promises to pay Distributions from the date of original
issuance, or from the most recent Distribution Date to which Distributions have
been paid or duly provided for, quarterly (subject to deferral as set forth
herein) in arrears on January 18, April 18, July 18 and October 18 of each year,
commencing on January 18, 2005, at an annual rate equal to 4.64% beginning on
(and including) the date of original issuance and ending on (but excluding)
January 18, 2005 and at an annual rate for each successive period beginning on
(and including) January 18, 2005, and each successive Distribution Date, and
ending on (but excluding) the next succeeding Distribution Date equal to LIBOR
plus 2.18% of the Liquidation Amount of the Series B Preferred Securities
represented by this Preferred Securities Certificate, together with any
Additional Interest Amounts, in respect to such period.

      Distributions on the Series B Trust Securities shall be made by the Paying
Agent from the Payment Account and shall be payable on each Distribution Date
only to the extent that the Trust has funds then on hand and available in the
Payment Account for the payment of such Distributions.

      In the event (and to the extent) that the Depositor exercises its right
under the Indenture to defer the payment of interest on the Series B Notes,
Distributions on the Series B Preferred Securities shall be deferred.

      Under the Indenture, so long as no Note Event of Default pursuant to
paragraphs (c), (e) or (f) of Section 5.1 of the Indenture has occurred and is
continuing, the Depositor shall have the right, at any time and from time to
time during the term of the Series B Notes, to defer the payment of interest on
such Notes for a period of up to twenty (20) consecutive quarterly interest
payment periods (each such extended interest payment period, an "Extension
Period"), during which Extension Period no interest shall be due and payable
(except any Additional Tax Sums that may be due and payable). No interest on
such Notes shall be due and payable during an Extension Period, except at the
end thereof, but each installment of interest that would otherwise have been due
and payable during such Extension Period shall bear Additional Interest (to the
extent payment of such interest would be legally enforceable) at a variable rate
per annum, reset quarterly, equal to LIBOR plus 2.18%, compounded quarterly,
from the dates on which amounts would have otherwise been due and payable until
paid or until funds for the payment thereof have been made available for
payment. If Distributions are deferred, the deferred Distributions (including
Additional Interest Amounts) shall be paid on the date that the related
Extension Period terminates to Holders (as defined in the Trust Agreement) of
the Series B Trust Securities as they appear on the books and records of the
Trust on the record date immediately preceding such termination date.

      Distributions on the Series B Trust Securities must be paid on the dates
payable (after giving effect to any Extension Period) to the extent that the
Trust has funds available for the payment of such Distributions in the Payment
Account of the Trust. The Trust's funds available for Distribution to the
Holders of the Series B Preferred Securities will be limited to payments
received from the Depositor. The payment of Distributions out of moneys held by
the Trust is guaranteed by the Depositor pursuant to the Guarantee Agreement.

                                      C-2-5
<PAGE>

      During any such Extension Period, the Depositor shall not (i) declare or
pay any dividends or distributions on, or redeem, purchase, acquire or make a
liquidation payment with respect to, any of the Depositor's capital stock or
(ii) make any payment of principal of or any interest or premium on or repay,
repurchase or redeem any debt securities of the Depositor that rank pari passu
in all respects with or junior in interest to the Notes (other than (a)
repurchases, redemptions or other acquisitions of shares of capital stock of the
Depositor in connection with (1) any employment contract, benefit plan or other
similar arrangement with or for the benefit of any one or more employees,
officers, directors or consultants, (2) a dividend reinvestment or stockholder
stock purchase plan or (3) the issuance of capital stock of the Depositor (or
securities convertible into or exercisable for such capital stock) as
consideration in an acquisition transaction entered into prior to the applicable
Extension Period, (b) as a result of an exchange or conversion of any class or
series of the Depositor's capital stock (or any capital stock of a Subsidiary
(as defined in the Indenture) of the Depositor) for any class or series of the
Depositor's capital stock or of any class or series of the Depositor's
indebtedness for any class or series of the Depositor's capital stock, (c) the
purchase of fractional interests in shares of the Depositor's capital stock
pursuant to the conversion or exchange provisions of such capital stock or the
security being converted or exchanged, (d) any declaration of a dividend in
connection with any Rights Plan (as defined in the Indenture), the issuance of
rights, stock or other property under any Rights Plan, or the redemption or
repurchase of rights pursuant thereto or (e) any dividend in the form of stock,
warrants, options or other rights where the dividend stock or the stock issuable
upon exercise of such warrants, options or other rights is the same stock as
that on which the dividend is being paid or ranks pari passu with or junior to
such stock).

      On each Series B Note Redemption Date, on the stated maturity (or any date
of principal repayment upon early maturity) of the Series B Notes and on each
other date on (or in respect of) which any principal on the Series B Notes is
repaid, the Trust will be required to redeem a Like Amount of Series B Trust
Securities at the Redemption Price. Under the Indenture, the Series B Notes may
be redeemed by the Depositor on any Interest Payment Date, at the Depositor's
option, on or after January 18, 2010 in whole or in part from time to time at a
redemption price equal to one hundred percent (100%) of the principal amount
thereof or the redeemed portion thereof, as applicable, together, in the case of
any such redemption, with accrued interest, including any Additional Interest,
to but excluding the date fixed for redemption; provided, that the Depositor
shall have received the prior approval of the Federal Reserve if then required.
The Notes may also be redeemed by the Depositor, at its option, at any time, in
whole but not in part, upon the occurrence of a Capital Disqualification Event,
an Investment Company Event or a Tax Event at the Special Event Redemption
Price.

      The Series B Trust Securities redeemed on each Redemption Date shall be
redeemed at the Redemption Price with the proceeds from the contemporaneous
redemption or payment at maturity of the Series B Notes. Redemptions of the
Series B Trust Securities (or portion thereof) shall be made and the Redemption
Price shall be payable on each Redemption Date only to the extent that the Trust
has funds then on hand and available in the Payment Account for the payment of
such Redemption Price.

      Payments of Distributions (including any Additional Interest Amounts), the
Redemption Price, Liquidation Amount or any other amounts in respect of the
Series B Preferred Securities shall be made by wire transfer at such place and
to such account at a banking institution in the

                                      C-2-6
<PAGE>

United States as may be designated in writing at least ten (10) Business Days
prior to the date for payment by the Person entitled thereto unless proper
written transfer instructions have not been received by the relevant record
date, in which case such payments shall be made by check mailed to the address
of such Person as such address shall appear in the Security Register. If any
Series B Preferred Securities are held by a Depositary, such Distributions shall
be made to the Depositary in immediately available funds.

      The indebtedness evidenced by the Series B Notes is, to the extent
provided in the Indenture, subordinate and junior in right of payment to the
prior payment in full of all Senior Debt (as defined in the Indenture), and this
Security is issued subject to the provisions of the Indenture with respect
thereto.

                                      C-2-7
<PAGE>

                                   ASSIGNMENT

      FOR VALUE RECEIVED, the undersigned assigns and transfers this Preferred
Securities Certificate to:

        (Insert assignee's social security or tax identification number)

                    (Insert address and zip code of assignee)

and irrevocably appoints

agent to transfer this Preferred Securities Certificate on the books of the
Trust. The agent may substitute another to act for him or her.

Date: _____________________

Signature: _____________________________________________________________________
               (Sign exactly as your name appears on the other side of this
                             Preferred Securities Certificate)

The signature(s) should be guaranteed by an eligible guarantor institution
(banks, stockbrokers, savings and loan associations and credit unions with
membership in an approved signature guarantee medallion program), pursuant to
S.E.C. Rule 17Ad-15.

                                     C-2-8

<PAGE>

                                                                       Exhibit D

                          Junior Subordinated Indenture

                                     C-2-1

<PAGE>

                                                                       Exhibit E

                         FORM OF TRANSFEREE CERTIFICATE
                  TO BE EXECUTED BY TRANSFEREES OTHER THAN QIBS

                                                         ______________, [     ]

Mercantile Bank Corporation
Mercantile Bank Capital Trust I
5650 Byron Center Avenue SW
Wyoming, Michigan 49509

            Re:   Purchase of $1,000 stated liquidation amount of Series [A][B]
                  Floating Rate Preferred Securities (the "Preferred
                  Securities") of Mercantile Bank Capital Trust I

Ladies and Gentlemen:

            In connection with our purchase of the Preferred Securities we
confirm that:

            1.    We understand that the Preferred Securities of Mercantile Bank
Capital Trust I (the "Trust") (including the guarantee (the "Guarantee") of
Mercantile Bank Corporation (the "Company") executed in connection therewith)
and the Series [A][B] Floating Rate Junior Subordinated Notes due 203__ of the
Company (the "Subordinated Notes") (the Preferred Securities, the Guarantee and
the Subordinated Notes together being referred to herein as the "Offered
Securities"), have not been registered under the Securities Act of 1933, as
amended (the "Securities Act"), and may not be offered or sold except as
permitted in the following sentence. We agree on our own behalf and on behalf of
any investor account for which we are purchasing the Offered Securities that, if
we decide to offer, sell or otherwise transfer any such Offered Securities, (i)
such offer, sale or transfer will be made only (a) to the Trust, (b) to a person
we reasonably believe is a "qualified institutional buyer" (a "QIB") (as defined
in Rule 144 under the Securities Act) in a transaction meeting the requirements
of Rule 144A, (c) to an institutional "accredited investor" within the meaning
of subparagraph (a) (1), (2), (3) or (7) of Rule 501 under the Securities Act
that is acquiring Offered Securities for its own account, or for the account of
such an "accredited investor," for investment purposes and not with a view to,
or for offer or sale in connection with, any distribution thereof in violation
of the Securities Act, (d) pursuant to an effective registration statement under
the Securities Act, or (e) pursuant to an exemption from the Securities Act, in
each case in accordance with any applicable securities laws of any state of the
United States or any other applicable jurisdiction and, in the case of (c) or
(e), subject to the right of the Trust and the depositor to require an opinion
of counsel and other information satisfactory to each of them. The foregoing
restrictions on resale will not apply subsequent to the date on which, in the
written opinion of counsel, the Preferred Securities are not "restricted
securities" within the meaning of Rule 144 under the Securities Act. If any
resale or other transfer of the Offered Securities is proposed to be made
pursuant to clause (c) or (e) above, the transferor shall deliver a letter from
the transferee substantially in the form of this letter to the Property Trustee
as Transfer Agent, which shall provide as applicable, among other things, that
the transferee is an "accredited investor" within the meaning of subparagraph
(a) (1), (2), (3) or (7) of Rule 501 under the Securities Act that is acquiring
such Securities for

                                      E-1
<PAGE>

investment purposes and not for distribution in violation of the Securities Act.
We acknowledge on our behalf and on behalf of any investor account for which we
are purchasing Securities that the Trust and the Company reserve the right prior
to any offer, sale or other transfer pursuant to clause (c) or (e) to require
the delivery of any opinion of counsel, certifications and/or other information
satisfactory to the Trust and the Company. We understand that the certificates
for any Offered Security that we receive will bear a legend substantially to the
effect of the foregoing.

            2.    We are an "accredited investor" within the meaning of
subparagraph (a) (1), (2), (3) or (7) of Rule 501 under the Securities Act
purchasing for our own account or for the account of such an "accredited
investor," and we are acquiring the Offered Securities for investment purposes
and not with view to, or for offer or sale in connection with, any distribution
in violation of the Securities Act, and we have such knowledge and experience in
financial and business matters as to be capable of evaluating the merits and
risks of our investment in the Offered Securities, and we and any account for
which we are acting are each able to bear the economic risks of our or its
investment.

            3.    We are acquiring the Offered Securities purchased by us for
our own account (or for one or more accounts as to each of which we exercise
sole investment discretion and have authority to make, and do make, the
statements contained in this letter) and not with a view to any distribution of
the Offered Securities, subject, nevertheless, to the understanding that the
disposition of our property will at all times be and remain within our control.

            4.    In the event that we purchase any Preferred Securities or any
Subordinated Notes, we will acquire such Preferred Securities having an
aggregate stated liquidation amount of not less than $100,000 or such
Subordinated Notes having an aggregate principal amount not less than $100,000,
for our own account and for each separate account for which we are acting.

            5.    We acknowledge that we either (A) are not a fiduciary of a
employee benefit, individual retirement account or other plan or arrangement
subject to Title I of the Employee Retirement Income Security Act of 1974, as
amended ("ERISA"), or Section 4975 of the Internal Revenue Code of 1986, as
amended (the "Code") (each a "Plan"), or an entity whose underlying assets
include "plan assets" by reason of any Plan's investment in the entity, and are
not purchasing the Offered Securities on behalf of or with "plan assets" by
reason of any Plan's investment in the entity, (B) are eligible for the
exemptive relief available under one or more of the following prohibited
transaction class exemptions ("PTCEs") issued by the U.S. Department of Labor:
PTCE 96-23, 95-60, 91-38, 90-1 or 84-14 or another applicable exemption, or (C)
our purchase and holding of this security, or any interest therein, is not
prohibited by Section 406 of ERISA or Section 4975 of the Code with respect to
such purchase or holding.

            6.    We acknowledge that the Trust and the Company and others will
rely upon the truth and accuracy of the foregoing acknowledgments,
representations, warranties and agreements and agree that if any of the
acknowledgments, representations, warranties and agreements deemed to have been
made by our purchase of the Offered Securities are no longer accurate, we shall
promptly notify the Company. If we are acquiring any Offered Securities as a
fiduciary or agent for one or more investor accounts, we represent that we have
sole discretion

                                      E-2

<PAGE>

with respect to each such investor account and that we have full power to make
the foregoing acknowledgments, representations and agreement on behalf of each
such investor account.

                                         (Name of Purchaser)

                                         By: ___________________________________

                                         Date: _________________________________

            Upon transfer, the Offered Securities would be registered in the
name of the new beneficial owner as follows.

Name: ________________________________

Address: _____________________________

Taxpayer ID Number: __________________

                                      E-3

<PAGE>

                                                                       Exhibit F

                         FORM OF TRANSFEROR CERTIFICATE
                             TO BE EXECUTED FOR QIBs

                                                          _____________, [     ]

Mercantile Bank Corporation
Mercantile Bank Capital Trust I
5650 Byron Center Avenue SW
Wyoming, Michigan 49509

            Re:   Purchase of $1,000 stated liquidation amount of Series [A][B]
                  Floating Rate Preferred Securities (the "Preferred
                  Securities") of Mercantile Bank Capital Trust I

      Reference is hereby made to the Amended and Restated Trust Agreement of
Mercantile Bank Capital Trust I, dated as of September 16, 2004 (the "Trust
Agreement"), among Gerald R. Johnson, Jr., Michael H. Price and Charles E.
Christmas, as Administrative Trustees, Wilmington Trust Company, as Delaware
Trustee, Wilmington Trust Company, as Property Trustee, Mercantile Bank
Corporation, as Depositor, and the holders from time to time of undivided
beneficial interests in the assets of Mercantile Bank Capital Trust I.
Capitalized terms used but not defined herein shall have the meanings given them
in the Trust Agreement.

      This letter relates to $________________________ aggregate liquidation
amount of Preferred Securities which are held in the name of _____________ (the
"Transferor").

      In accordance with Article V of the Trust Agreement, the Transferor hereby
certifies that such Preferred Securities are being transferred in accordance
with (i) the transfer restrictions set forth in the Preferred Securities and
(ii) Rule 144A under the Securities Act ("Rule 144A"), to a transferee that the
Transferor reasonably believes is purchasing the Preferred Securities for its
own account or an account with respect to which the transferee exercises sole
investment discretion and the transferee and any such account is a "qualified
institutional buyer" within the meaning of Rule 144A, in a transaction meeting
the requirements of Rule 144A and in accordance with applicable securities laws
of any state of the United States or any other jurisdiction.

      You are entitled to rely upon this letter and are irrevocably authorized
to produce this letter or a copy hereof to any interested party in any
administrative or legal proceeding or official inquiry with respect to the
matters covered hereby.

                                         (Name of Transferor)

                                         By: ___________________________________
                                             Name:
                                             Title:

Date: _________________

                                      F-1

<PAGE>

                                                                       Exhibit G

                              Officer's Certificate

      The undersigned, the [Chief Financial Officer] [Treasurer] [Executive Vice
President] hereby certifies, pursuant to Section 8.16(b) of the Amended and
Restated Trust Agreement, dated as of September 16, 2004, among Mercantile Bank
Corporation (the "Company"), Wilmington Trust Company, as property trustee,
Wilmington Trust Company, as Delaware trustee and the administrative trustees
named therein, that, as of [date], [20__], the Company had the following ratios
and balances:

BANK HOLDING COMPANY
As of [Quarterly Financial Dates]

Tier 1 Risk Weighted Assets                                        ___________ %

Ratio of Double Leverage                                           ___________ %

Non-Performing Assets to Loans and OREO                            ___________ %

Tangible Common Equity as a Percentage of Tangible Assets          ___________ %

Ratio of Reserves to Non-Performing Loans                          ___________ %

Ratio of Net Charge-Offs to Loans                                  ___________ %

Return on Average Assets (annualized)                              ___________ %

Net Interest Margin (annualized)                                   ___________ %

Efficiency Ratio                                                   ___________ %

Ratio of Loans to Assets                                           ___________ %

Ratio of Loans to Deposits                                         ___________ %

Total Assets                                                       $__________

Year to Date Income                                                $__________

* A table describing the quarterly report calculation procedures is provided on
page __

[FOR FISCAL YEAR END: Attached hereto are the audited consolidated financial
statements (including the balance sheet, income statement and statement of cash
flows, and notes thereto, together with the report of the independent
accountants thereon) of the Company and its consolidated subsidiaries for the
three years ended _______, 20___.]

[FOR FISCAL QUARTER END: Attached hereto are the unaudited consolidated
financial statements (including the balance sheet and income statement) of the
Company and its consolidated subsidiaries for the fiscal quarter] ended [date],
20__.

                                      G-1

<PAGE>

The financial statements fairly present in all material respects, in accordance
with U.S. generally accepted accounting principles ("GAAP"), the financial
position of the Company and its consolidated subsidiaries, and the results of
operations and changes in financial condition as of the date, and for the [___
quarter interim] [annual] period ended [date], 20__, and such financial
statements have been prepared in accordance with GAAP consistently applied
throughout the period involved (expect as otherwise noted therein).

      IN WITNESS WHEREOF, the undersigned has executed this Officer's
Certificate as of this _____ day of _____________, 20__

                                         _______________________________________
                                         Name:
                                         Title:

                                         Mercantile Bank Corporation
                                         5650 Byron Center Avenue SW
                                         Wyoming, Michigan 49509
                                         (616) 406-3700

                                      G-2

<PAGE>

Financial Definitions

<TABLE>
<CAPTION>
                                   Corresponding FRY-9C or LP Line Items with                 Description of
       Report Item                      Line Item corresponding Schedules                       Calculation
--------------------------  ---------------------------------------------------------  ----------------------------
<S>                         <C>                                                        <C>
Tier 1 Risk Weighted        BHCK7206                                                   Tier 1 Risk Ratio: Core
Assets                      Schedule HC-R                                              Capital (Tier 1)/ Risk-
                                                                                       Adjusted Assets

Ratio of Double Leverage    (BHCP0365)/(BCHCP3210)                                     Total equity investments in
                            Schedule PC in the LP                                      subsidiaries divided by the
                                                                                       total equity capital. This
                                                                                       field is calculated at the
                                                                                       parent company level.
                                                                                       "Subsidiaries" include bank,
                                                                                       bank holding company, and
                                                                                       non-bank subsidiaries.

Non-Performing Assets to    (BHCK5525-BHCK3506+BHCK5526-                               Total Nonperforming Assets
Loans and OREO              BHCK3507+BHCK2744)/(BHCK2122+BHCK2                         (NPLs+Foreclosed Real
                            744) Schedules HC-C, HC-M & HC-N                           Estate+Other Nonaccrual &
                                                                                       Repossessed Assets)/Total
                                                                                       Loans+Foreclosed Real
                                                                                       Estate

Tangible Common Equity as   (BHDM3210-BHCK3163)/(BHCK2170-BHCK3163)                    (Equity Capital -
a Percentage of Tangible    Schedule HC                                                Goodwill)/(Total Assets
Assets                                                                                 - Goodwill)

Ratio of Reserves to        (BHCK3123+BHCK3128)/(BHCK5525-BHCK3506+BHCK5526-BHCK3507)  Total Loan Loss and
Non-Performing Loans        Schedules HC & HC-N & HC-R                                 Allocated Transfer Risk
                                                                                       Reserves/ Total
                                                                                       Nonperforming Loans
                                                                                       (Nonaccrual + Restructured)

Ratio of Net Charge-Offs    (BHCK4635-BHCK4605)/(BHCK3516)                             Net charge offs for the
to Loans                    Schedules HC-B & HC-K                                      period as a percentage of
                                                                                       average loans.

Return on Average Assets    (BHCK4340/BHCK3368)                                        Net Income as a percentage
(annualized)                Schedules HI & HC-K                                        of Assets.

Net Interest Margin         (BHCK4519)/(BHCK3515+BHCK3365+BHCK3                        (Net Interest Income Fully
                            516+BHCK3401+BHCKB985)                                     Taxable
</TABLE>

                                      G-3

<PAGE>

<TABLE>
<CAPTION>
                                   Corresponding FRY-9C or LP Line Items with                 Description of
       Report Item                      Line Item corresponding Schedules                       Calculation
--------------------------  ---------------------------------------------------------  ----------------------------
<S>                         <C>                                                        <C>
(annualized)                Schedules HI Memorandum and HC-K                           Equivalent, if
                                                                                       available/Average
                                                                                       Earning Assets)

Efficiency Ratio            (BHCK4093)/(BHCK4519+BHCK4079)                             (Non-interest
                            Schedule HI                                                Expense)/(Net Interest
                                                                                       Income Fully Taxable
                                                                                       Equivalent, if available,
                                                                                       plus Non-interest Income)

Ratio of Loans to Assets    (BHCKB528+BHCK5369)/(BHCK2170)                             Total Loans & Leases (Net of
                            Schedule HC                                                Unearned Income & Gross of
                                                                                       Reserve)/Total Assets

Ratio of Loans to Deposits  (BHCKB528+BHCK5369)/(BHDM6631+BHDM6636+BHFN6631+BHFN6636)  Total Loans & Leases (Net of
                            Schedule HC                                                Unearned Income & Gross of
                                                                                       Reserve)/Total Deposits
                                                                                       (Includes Domestic and
                                                                                       Foreign Deposits)

Total Assets                (BHCK2170)                                                 The sum of total assets.
                            Schedule HC                                                Includes cash and balances
                                                                                       due from depository
                                                                                       institutions; securities;
                                                                                       federal funds sold and
                                                                                       securities purchased under
                                                                                       agreements to resell;
                                                                                       loans and lease financing
                                                                                       receivables; trading assets;
                                                                                       premises and fixed assets;
                                                                                       other real estate owned;
                                                                                       investments in
                                                                                       unconsolidated subsidiaries
                                                                                       and associated companies;
                                                                                       customer's liability on
                                                                                       acceptances outstanding;
                                                                                       intangible assets; and other
                                                                                       assets.

Net Income                  (BHCK4300)                                                 The sum of income (loss)
                            Schedule HI                                                before extraordinary items
                                                                                       and
</TABLE>

                                      G-4

<PAGE>

<TABLE>
<CAPTION>
                                   Corresponding FRY-9C or LP Line Items with                 Description of
       Report Item                      Line Item corresponding Schedules                       Calculation
--------------------------  ---------------------------------------------------------  ----------------------------
<S>                         <C>                                                        <C>
                                                                                       other adjustments and
                                                                                       extraordinary items; and
                                                                                       other adjustments, net of
                                                                                       income taxes.
</TABLE>

                                      G-5

<PAGE>

                              Financial Definitions

                             THRIFT HOLDING COMPANY

<TABLE>
<CAPTION>
                                                                                       Description of
       Report Item                           Corresponding TFR                           Calculation
--------------------------  ---------------------------------------------------  --------------------------
<S>                         <C>                                                  <C>
Tier I Risk Weighted        Schedule CCR - Consolidated Capital Requirement      Tier 1 Risk Ratio: Core
Assets                      CCR 830                                              Capital (Tier 1)/Risk-
                                                                                 adjusted assets

Ratio of Double Leverage    Not applicable                                       Not applicable

Non-performing assets       Schedule PD - Consolidated Past Due and Nonaccrual   Total Non-performing
to loans and OREO           Schedule SC - Consolidated Statement of Condition    assets (NPLs +
                            PD30/(SC23+SC30+SC34+SC40)                           Foreclosed Real
                                                                                 Estate+Other Non-
                                                                                 accrual & Repossessed
                                                                                 assets+Foreclosed Real
                                                                                 Estate)

Tangible Common             Schedule CCR                                         (Equity Capital-
Equity as a Percentage      CCR 840                                              Goodwill) / (Total assets
of Total Assets                                                                  - Goodwill)

Ratio of Reserves to        SC283/PD30                                           Total loan loss reserves /
Non-performing loans                                                             Total Non-performing
                                                                                 loans

Ratio of Net Charge-offs    Schedule VA - Consolidated Valuation Allowances and  Net charge offs for the
to Loans                    Related Data                                         period as a percentage of
                                                                                 average loans
                            (VA155-VA135)/(SC23+SC30+SC34)

Return on Assets            Schedule SO - Consolidated Statements of Operations  Net income as a
(annualized)                SO91/SC60                                            percentage of assets

Net interest margin         SO311/((SC10-SC110)+SC20+SC23+SC30+SC34)             Net interest income /
(annualized)                                                                     Average earning assets

Efficiency Ratio            (SO51/(SO311+SO40))                                  (Non-interest expense) /
                                                                                 (Net interest income +
                                                                                 Non-interest income)

Ratio of Loans to Assets    (SC23+SC30+SC34)/(SC60)                              Total Loan & Leases /
                                                                                 Total assets

Ratio of Loans to Deposits  (SC23+SC30+SC34)/(SC710)                             Total Loans & Leases /
                                                                                 Total Deposits

Total Assets                Schedule SC                                          The sum of total assets.
                            SC60

Net Income                  Schedule SO                                          The sum of income (loss).
                            SO91
</TABLE>

                                      G-6

<PAGE>

                                                                      Schedule A

      With respect to the Trust Securities, the London interbank offered rate
("LIBOR") shall be determined by the Calculation Agent in accordance with the
following provisions (in each case rounded to the nearest .000001%):

(1)   On the second LIBOR Business Day (as defined below) prior to a
Distribution Date (except, with respect to the first distribution payment
period, two Business Days prior to the Original Issuance Date) (each such day, a
"LIBOR Determination Date"), LIBOR for any given security shall, for the
following distribution period, equal the rate, as obtained by the Calculation
Agent from Bloomberg Financial Markets Commodities News, for three-month U.S.
Dollar deposits in Europe, which appears on Dow Jones Telerate Page 3750 (as
defined in the International Swaps and Derivatives Association, Inc. 1991
Interest Rate and Currency Exchange Definitions), or such other page as may
replace such Page 3750, as of 11:00 a.m. (London time) on such LIBOR
Determination Date.

(2)   If, on any LIBOR Determination Date, such rate does not appear on Dow
Jones Telerate Page 3750 or such other page as may replace such Page 3750, the
Calculation Agent shall determine the arithmetic mean of the offered quotations
of the Reference Banks (as defined below) to leading banks in the London
interbank market for three-month U.S. Dollar deposits in Europe in an amount
determined by the Calculation Agent by reference to requests for quotations as
of approximately 11:00 a.m. (London time) on the LIBOR Determination Date made
by the Calculation Agent to the Reference Banks. If, on any LIBOR Determination
Date, at least two of the Reference Banks provide such quotations, LIBOR shall
equal such arithmetic mean of such quotations. If, on any LIBOR Determination
Date, only one or none of the Reference Banks provide such quotations, LIBOR
shall be deemed to be the arithmetic mean of the offered quotations that leading
banks in the City of New York selected by the Calculation Agent are quoting on
the relevant LIBOR Determination Date for three-month U.S. Dollar deposits in
Europe in an amount determined by the Calculation Agent by reference to the
principal London offices of leading banks in the London interbank market;
provided, that if the Calculation Agent is required but is unable to determine a
rate in accordance with at least one of the procedures provided above, LIBOR
shall be LIBOR as determined on the previous LIBOR Determination Date.

(3)   As used herein: "Reference Banks" means four major banks in the London
interbank market selected by the Calculation Agent; and "LIBOR Business Day"
means a day on which commercial banks are open for business (including dealings
in foreign exchange and foreign currency deposits) in London.

                                  Schedule A-1