<PAGE>
                                                                    EXHIBIT 10.1

                                                            Final Conformed Copy

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

                         JUNIOR SUBORDINATED INDENTURE

                                     between

                           MERCANTILE BANK CORPORATION

                                       and

                            WILMINGTON TRUST COMPANY,
                                   as Trustee

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

                         Dated as of September 16, 2004

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

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

<PAGE>

                               TABLE OF CONTENTS

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<CAPTION>
                                                                                                                       PAGE
<S>                                                                                                                    <C>
ARTICLE I Definitions and Other Provisions of General Application                                                       1

   SECTION 1.1. Definitions......................................................................................       1
   SECTION 1.2. Compliance Certificate and Opinions..............................................................      10
   SECTION 1.3. Forms of Documents Delivered to Trustee..........................................................      11
   SECTION 1.4. Acts of Holders..................................................................................      12
   SECTION 1.5. Notices, Etc. to Trustee and Company.............................................................      14
   SECTION 1.6. Notice to Holders; Waiver........................................................................      14
   SECTION 1.7. Effect of Headings and Table of Contents.........................................................      15
   SECTION 1.8. Successors and Assigns...........................................................................      15
   SECTION 1.9. Separability Clause..............................................................................      15
   SECTION 1.10. Benefits of Indenture...........................................................................      15
   SECTION 1.11. Governing Law...................................................................................      15
   SECTION 1.12. Submission to Jurisdiction......................................................................      15
   SECTION 1.13. Non-Business Days...............................................................................      16

ARTICLE II Security Forms                                                                                              16

   SECTION 2.1. Form of Security.................................................................................      16
   SECTION 2.2. Restricted Legend................................................................................      21
   SECTION 2.3. Form of Trustee's Certificate of Authentication..................................................      24
   SECTION 2.4. Temporary Securities.............................................................................      24
   SECTION 2.5. Definitive Securities............................................................................      25

ARTICLE III The Securities                                                                                             25

   SECTION 3.1. Payment of Principal and Interest................................................................      25
   SECTION 3.2. Denominations....................................................................................      27
   SECTION 3.3. Execution, Authentication, Delivery and Dating...................................................      27
   SECTION 3.4. Global Securities................................................................................      28
   SECTION 3.5. Registration, Transfer and Exchange Generally....................................................      30
   SECTION 3.6. Mutilated, Destroyed, Lost and Stolen Securities.................................................      31
   SECTION 3.7. Persons Deemed Owners............................................................................      32
   SECTION 3.8. Cancellation.....................................................................................      32
   SECTION 3.9. Deferrals of Interest Payment Dates..............................................................      32
   SECTION 3.10. Right of Set-Off................................................................................      33
   SECTION 3.11. Agreed Tax Treatment............................................................................      33
   SECTION 3.12. CUSIP Numbers...................................................................................      34
</TABLE>

                                      -i-

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<TABLE>
<S>                                                                                                                    <C>
ARTICLE IV Satisfaction and Discharge                                                                                  34

   SECTION 4.1. Satisfaction and Discharge of Indenture..........................................................      34
   SECTION 4.2. Application of Trust Money.......................................................................      35

ARTICLE V Remedies                                                                                                     35

   SECTION 5.1. Events of Default................................................................................      35
   SECTION 5.2. Acceleration of Maturity; Rescission and Annulment...............................................      37
   SECTION 5.3. Collection of Indebtedness and Suits for Enforcement by Trustee..................................      38
   SECTION 5.4. Trustee May File Proofs of Claim.................................................................      38
   SECTION 5.5. Trustee May Enforce Claim Without Possession of Securities.......................................      39
   SECTION 5.6. Application of Money Collected...................................................................      39
   SECTION 5.7. Limitation on Suits..............................................................................      39
   SECTION 5.8. Unconditional Right of Holders to Receive Principal, Premium and Interest; Direct Action
                by Holders of Preferred Securities...............................................................      40
   SECTION 5.9. Restoration of Rights and Remedies...............................................................      40
   SECTION 5.10. Rights and Remedies Cumulative..................................................................      41
   SECTION 5.11. Delay or Omission Not Waiver....................................................................      41
   SECTION 5.12. Control by Holders..............................................................................      41
   SECTION 5.13. Waiver of Past Defaults.........................................................................      41
   SECTION 5.14. Undertaking for Costs...........................................................................      42
   SECTION 5.15. Waiver of Usury, Stay or Extension Laws.........................................................      42

ARTICLE VI The Trustee                                                                                                 43

   SECTION 6.1. Corporate Trustee Required.......................................................................      43
   SECTION 6.2. Certain Duties and Responsibilities..............................................................      43
   SECTION 6.3. Notice of Defaults...............................................................................      44
   SECTION 6.4. Certain Rights of Trustee........................................................................      44
   SECTION 6.5. May Hold Securities..............................................................................      46
   SECTION 6.6. Compensation; Reimbursement; Indemnity...........................................................      46
   SECTION 6.7. Resignation and Removal; Appointment of Successor................................................      47
   SECTION 6.8. Acceptance of Appointment by Successor...........................................................      48
   SECTION 6.9. Merger, Conversion, Consolidation or Succession to Business......................................      49
   SECTION 6.10. Not Responsible for Recitals or Issuance of Securities..........................................      49
   SECTION 6.11. Appointment of Authenticating Agent.............................................................      49

ARTICLE VII Holder's Lists and Reports by Trustee and Company                                                          51

   SECTION 7.1. Company to Furnish Trustee Names and Addresses of Holders........................................      51
   SECTION 7.2. Preservation of Information, Communications to Holders...........................................      51
   SECTION 7.3. Reports by Company and Trustee...................................................................      51
</TABLE>

                                      -ii-

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<TABLE>
<S>                                                                                                                    <C>
ARTICLE VIII Consolidation, Merger, Conveyance, Transfer or Lease                                                      52

   SECTION 8.1. Company May Consolidate, Etc., Only on Certain Terms.............................................      52
   SECTION 8.2. Successor Company Substituted....................................................................      53

ARTICLE IX Supplemental Indentures                                                                                     53

   SECTION 9.1. Supplemental Indentures without Consent of Holders...............................................      53
   SECTION 9.2. Supplemental Indentures with Consent of Holders..................................................      54
   SECTION 9.3. Execution of Supplemental Indentures.............................................................      55
   SECTION 9.4. Effect of Supplemental Indentures................................................................      55
   SECTION 9.5. Reference in Securities to Supplemental Indentures...............................................      55

ARTICLE X Covenants                                                                                                    56

   SECTION 10.1. Payment of Principal, Premium and Interest......................................................      56
   SECTION 10.2. Money for Security Payments to be Held in Trust.................................................      56
   SECTION 10.3. Statement as to Compliance......................................................................      57
   SECTION 10.4. Calculation Agent...............................................................................      57
   SECTION 10.5. Additional Tax Sums.............................................................................      58
   SECTION 10.6. Additional Covenants............................................................................      58
   SECTION 10.7. Waiver of Covenants.............................................................................      59
   SECTION 10.8. Treatment of Securities.........................................................................      59

ARTICLE XI Redemption of Securities                                                                                    60

   SECTION 11.1. Optional Redemption.............................................................................      60
   SECTION 11.2. Special Event Redemption........................................................................      60
   SECTION 11.3. Election to Redeem; Notice to Trustee...........................................................      60
   SECTION 11.4. Selection of Securities to be Redeemed..........................................................      61
   SECTION 11.5. Notice of Redemption............................................................................      61
   SECTION 11.6. Deposit of Redemption Price.....................................................................      62
   SECTION 11.7. Payment of Securities Called for Redemption.....................................................      62

ARTICLE XII Subordination of Securities                                                                                63

   SECTION 12.1. Securities Subordinate to Senior Debt...........................................................      63
   SECTION 12.2. No Payment When Senior Debt in Default; Payment Over of Proceeds Upon Dissolution, Etc..........      63
   SECTION 12.3. Payment Permitted If No Default.................................................................      64
   SECTION 12.4. Subrogation to Rights of Holders of Senior Debt.................................................      65
   SECTION 12.5. Provisions Solely to Define Relative Rights.....................................................      65
   SECTION 12.6. Trustee to Effectuate Subordination.............................................................      65
   SECTION 12.7. No Waiver of Subordination Provisions...........................................................      66
</TABLE>

                                     -iii-

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<TABLE>
<S>                                                                                                                    <C>
   SECTION 12.8. Notice to Trustee...............................................................................      66
   SECTION 12.9. Reliance on Judicial Order or Certificate of Liquidating Agent..................................      67
   SECTION 12.10. Trustee Not Fiduciary for Holders of Senior Debt...............................................      67
   SECTION 12.11. Rights of Trustee as Holder of Senior Debt; Preservation of Trustee's Rights...................      67
   SECTION 12.12. Article Applicable to Paying Agents............................................................      67
</TABLE>

                                   SCHEDULES

Schedule A        Determination of LIBOR

Exhibit A         Form of Officer's Certificate

                                      -iv-
<PAGE>

      Junior Subordinated Indenture, dated as of September 16, 2004, between
Mercantile Bank Corporation, a Michigan corporation (the "Company"), and
Wilmington Trust Company, a Delaware banking corporation, as Trustee (in such
capacity, the "Trustee").

Recitals of the Company

      Whereas, the Company has duly authorized the execution and delivery of
this Indenture to provide for the issuance of its unsecured junior subordinated
deferrable interest notes (the "Securities") issued to evidence loans made to
the Company of the proceeds from the issuance by Mercantile Bank Capital Trust
I, a Delaware statutory trust (the "Trust"), of Series A and Series B Floating
Rate Preferred Securities representing undivided preferred beneficial interests
in the assets of the Trust (the "Preferred Securities") and Series A and Series
B Floating Rate Common Securities representing undivided common beneficial
interests in the assets of the Trust (the "Common Securities" and, collectively
with the Preferred Securities, the "Trust Securities"), and to provide the terms
and conditions upon which the Securities are to be authenticated, issued and
delivered; and

      Whereas, all things necessary to make this Indenture a valid agreement of
the Company, in accordance with its terms, have been done.

      Now, therefore, this Indenture Witnesseth:

      For and in consideration of the premises and the purchase of the
Securities by the Holders thereof, it is mutually covenanted and agreed, for the
equal and proportionate benefit of all Holders of the Securities, as follows:

                                   ARTICLE I

            Definitions and Other Provisions of General Application

      SECTION 1.1. Definitions.

      For all purposes of this Indenture, 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";

            (c) all accounting terms not otherwise defined herein have the
      meanings assigned to them in accordance with GAAP;

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

                                       1
<PAGE>

            (e) the words "hereby", "herein", "hereof" and "hereunder" and other
      words of similar import refer to this Indenture 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" when used with respect to any Holder, has the meaning specified in
Section 1.4.

      "Administrative Trustee" means, with respect to the Trust, a Person
identified as an "Administrative Trustee" in the Trust Agreement, solely in its
capacity as Administrative Trustee of the Trust under the Trust Agreement and
not in its individual capacity, or its successor in interest in such capacity,
or any successor Administrative Trustee appointed as therein provided.

      "Additional Interest" means the interest, if any, that shall accrue on any
amounts payable on the Securities, the payment of which has not been made on the
applicable Interest Payment Date and which shall accrue at the rate per annum
specified or determined as specified in such Security.

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

      "Additional Taxes" means taxes, duties or other governmental charges
imposed on the Trust as a result of a Tax Event (which, for the sake of clarity,
does not include amounts required to be deducted or withheld by the Trust from
payments made by the Trust to or for the benefit of the Holder of, or any Person
that acquires a beneficial interest in, the Securities).

      "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 Depository Procedures" means, with respect to any transfer or
transaction involving a Global Security or beneficial interest therein, the
rules and procedures of the Depositary for such Security, in each case to the
extent applicable to such transaction and as in effect from time to time.

      "Authenticating Agent" means any Person authorized by the Trustee pursuant
to Section 6.11 to act on behalf of the Trustee to authenticate the Securities.

      "Bankruptcy Code" means Title 11 of the United States Code or any
successor statute thereto, in each case as amended from time to time.

                                       2
<PAGE>

      "Board of Directors" means the board of directors of the Company or any
duly authorized committee of that board.

      "Board Resolution" means a copy of a resolution certified by the Secretary
or an Assistant Secretary of the Company to have been duly adopted by the Board
of Directors and to be in full force and effect on the date of such
certification.

      "Business Day" means any day other than (i) a Saturday or Sunday, (ii) 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 (iii) a day on which the
Corporate Trust Office of the Trustee is closed for business.

      "Calculation Agent" has the meaning specified in Section 10.4.

      "Capital Disqualification Event" means the receipt by the Company of an
Opinion of Counsel experienced in such matters that, as a result of an amendment
to or a change in law or regulation (including any announced prospective change)
or a change in interpretation or application of law or regulation by any
legislative body, court, governmental agency or regulatory authority, there is
more than insubstantial risk that within ninety (90) days of the date of such
opinion, the aggregate liquidation amount of the Preferred Securities will not
be eligible to be treated by the Company as "Tier 1 Capital" (or the then
equivalent) for purposes of the capital adequacy guidelines of the Federal
Reserve or other "appropriate Federal banking agency" as such term is defined in
12 U.S.C. 1813(q), which amendment, change or prospective change becomes
effective or would become effective, as the case may be, on or after the date of
issuance of the Securities; provided, however, that the inability of the Company
to treat all or any portion of the liquidation amount of the Preferred
Securities as Tier 1 Capital shall not constitute the basis for a Capital
Disqualification Event if such inability results from the Company having such
Preferred Securities outstanding in an amount that for any reason is in excess
of the amount which may now or hereafter qualify for treatment as Tier 1 Capital
under applicable capital adequacy guidelines. By way of example, the inability
of the Company to treat all or any portion of the liquidation amount of the
Preferred Securities as Tier 1 Capital as a result of the adoption as a final
rule of any of the proposals set forth in the Notice of Proposed Rulemaking on
Risk-Based Capital Standards: Trust Preferred Securities and the Definition of
Capital, issued on May 6, 2004, by the Federal Reserve, shall not constitute the
basis for a Capital Disqualification Event.

      "Common Securities" has the meaning specified in the first recital of this
Indenture.

      "Common Stock" means the common stock, no par value, of the Company.

      "Company" means the Person named as the "Company" in the first paragraph
of this Indenture until a successor corporation shall have become such pursuant
to the applicable provisions of this Indenture, and thereafter "Company" shall
mean such successor corporation.

      "Company Request" and "Company Order" mean, respectively, the written
request or order signed in the name of the Company by its Chairman of the Board
of Directors, its Vice Chairman of the Board of Directors, its Chief Executive
Officer, President or a Vice President,

                                       3
<PAGE>

and by its Chief Financial Officer, Treasurer, an Assistant Treasurer, its
Secretary or an Assistant Secretary, and delivered to the Trustee.

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

      "Debt" means, with respect to any Person, whether recourse is to all or a
portion of the assets of such Person, whether currently existing or hereafter
incurred and whether or not contingent and without duplication, (i) every
obligation of such Person for money borrowed; (ii) every obligation of such
Person evidenced by bonds, debentures, notes or other similar instruments,
including obligations incurred in connection with the acquisition of property,
assets or businesses; (iii) every reimbursement obligation of such Person with
respect to letters of credit, bankers' acceptances or similar facilities issued
for the account of such Person; (iv) every obligation of such Person issued or
assumed as the deferred purchase price of property or services (but excluding
trade accounts payable or other accrued liabilities arising in the ordinary
course of business); (v) every capital lease obligation of such Person; (vi) all
indebtedness of such Person, whether incurred on or prior to the date of this
Indenture or thereafter incurred, for claims in respect of derivative products,
including interest rate, foreign exchange rate and commodity forward contracts,
options and swaps and similar arrangements; (vii) every obligation of the type
referred to in clauses (i) through (vi) of another Person and all dividends of
another Person the payment of which, in either case, such Person has guaranteed
or is responsible or liable for, directly or indirectly, as obligor or
otherwise; and (viii) any renewals, extensions, refundings, amendments or
modifications of any obligation of the type referred to in clauses (i) through
(vii).

      "Defaulted Interest" has the meaning specified in Section 3.1.

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

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

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

      "Distributions" means amounts payable in respect of the Trust Securities
as provided in the Trust Agreement and referred to therein as "Distributions."

      "Dollar" or "$" means the currency of the United States of America that,
as at the time of payment, is legal tender for the payment of public and private
debts.

                                       4
<PAGE>

      "DTC" means The Depository Trust Company, a New York corporation.

      "Event of Default" has the meaning specified in Section 5.1.

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

      "Expiration Date" has the meaning specified in Section 1.4.

      "Extension Period" has the meaning specified in Section 3.9.

      "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 Indenture any such
entity is not existing and performing the duties now assigned to it , any
successor body performing similar duties or functions.

      "GAAP" means United States generally accepted accounting principles,
consistently applied, from time to time in effect.

      "Global Security" means a Security that evidences all or part of the
Securities, the ownership and transfers of which shall be made through book
entries by a Depositary.

      "Government Obligation" means (a) any security that is (i) a direct
obligation of the United States of America of which the full faith and credit of
the United States of America is pledged or (ii) an obligation of a Person
controlled or supervised by and acting as an agency or instrumentality of the
United States of America or the payment of which is unconditionally guaranteed
as a full faith and credit obligation by the United States of America, which, in
either case (i) or (ii), is not callable or redeemable at the option of the
issuer thereof, and (b) any depositary receipt issued by a bank (as defined in
Section 3(a)(2) of the Securities Act) as custodian with respect to any
Government Obligation that is specified in clause (a) above and held by such
bank for the account of the holder of such depositary receipt, or with respect
to any specific payment of principal of or interest on any Government Obligation
that is so specified and held, provided, that (except as required by law) such
custodian is not authorized to make any deduction from the amount payable to the
holder of such depositary receipt from any amount received by the custodian in
respect of the Government Obligation or the specific payment of principal or
interest evidenced by such depositary receipt.

      "Guarantee Agreement" means the Guarantee Agreement executed by the
Company and Wilmington Trust Company, as Guarantee Trustee, contemporaneously
with the execution and delivery of this Indenture, for the benefit of the
holders of the Preferred Securities, as modified, amended or supplemented from
time to time.

      "Holder" means a Person in whose name a Security is registered in the
Securities Register.

                                       5
<PAGE>

      "Indenture" means this instrument as originally executed or as it may from
time to time be amended or supplemented by one or more amendments or indentures
supplemental hereto entered into pursuant to the applicable provisions hereof.

      "Interest Payment Date" means January 18, April 18, July 18 and October 18
of each year, commencing on October 18, 2004 with respect to the Series A
Securities and January 18, 2005 with respect to the Series B Securities, during
the term of this 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" means the receipt by the Company of an Opinion
of Counsel experienced in such matters to the effect that, as a result of the
occurrence of a change in law or regulation (including any announced prospective
change) or a written change in interpretation or application of law or
regulation by any legislative body, court, governmental agency or regulatory
authority, there is more than an insubstantial risk that the Trust is or, within
ninety (90) days of the date of such opinion will be, considered an "investment
company" that is required to be registered under the Investment Company Act,
which change or prospective change becomes effective or would become effective,
as the case may be, on or after the date of the issuance of the Securities.

      "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.

      "Maturity," when used with respect to any Security, means the date on
which the principal of such Security or any installment of principal becomes due
and payable as therein or herein provided, whether at the Stated Maturity or by
declaration of acceleration, call for redemption or otherwise.

      "Notice of Default" means a written notice of the kind specified in
Section 5.1(d).

      "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
Indenture 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 Chairman of the
Board, a Vice Chairman of the Board, the Chief Executive Officer, President or a
Vice President, and by the Chief Financial Officer, Treasurer, an Assistant
Treasurer, the Secretary or an Assistant Secretary, of the Company and delivered
to the Trustee.

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

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

                                       6
<PAGE>

      "Outstanding" means, when used in reference to any Securities, as of the
date of determination, all Securities theretofore authenticated and delivered
under this Indenture, except:

            (i) Securities theretofore canceled by the Trustee or delivered to
      the Trustee for cancellation;

            (ii) Securities for whose payment or redemption money in the
      necessary amount has been theretofore deposited with the Trustee or any
      Paying Agent (other than the Company) in trust or set aside and segregated
      in trust by the Company (if the Company shall act as its own Paying Agent)
      for the Holders of such Securities; provided, that, if such Securities are
      to be redeemed, notice of such redemption has been duly given pursuant to
      this Indenture or provision therefor satisfactory to the Trustee has been
      made; and

            (iii) Securities that have been paid, or in substitution for or in
      lieu of which other Securities have been authenticated and delivered
      pursuant to the provisions of this Indenture, unless proof satisfactory to
      the Trustee is presented that any such Securities are held by Holders in
      whose hands such Securities are valid, binding and legal obligations of
      the Company;

provided, that, in determining whether the Holders of the requisite principal
amount of Outstanding Securities have given any request, demand, authorization,
direction, notice, consent or waiver hereunder, Securities owned by the Company
or any other obligor upon the Securities or any Affiliate of the Company or such
other obligor shall be disregarded and deemed not to be Outstanding, except
that, in determining whether the Trustee shall be protected in relying upon any
such request, demand, authorization, direction, notice, consent or waiver, only
Securities that a Responsible Officer of the Trustee actually knows to be so
owned shall be so disregarded. Securities so owned that have been pledged in
good faith may be regarded as Outstanding if the pledgee establishes to the
satisfaction of the Trustee the pledgee's right so to act with respect to such
Securities and that the pledgee is not the Company or any other obligor upon the
Securities or any Affiliate of the Company or such other obligor.
Notwithstanding anything herein to the contrary, Securities initially issued to
the Trust that are owned by the Trust shall be deemed to be Outstanding
notwithstanding the ownership by the Company or an Affiliate of any beneficial
interest in the Trust.

      "Paying Agent" means the Trustee or any Person authorized by the Company
to pay the principal of or any premium or interest on, or other amounts in
respect of, any Securities on behalf of the Company.

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

      "Place of Payment" means, with respect to the Securities, the Corporate
Trust Office of the Trustee.

                                       7
<PAGE>

      "Placement Agent" has the meaning specified in the Trust Agreement.

      "Preferred Securities" has the meaning specified in the first recital of
this Indenture.

      "Predecessor Security" of any particular Security means every previous
Security evidencing all or a portion of the same debt as that evidenced by such
particular Security. For the purposes of this definition, any security
authenticated and delivered under Section 3.6 in lieu of a mutilated, destroyed,
lost or stolen Security shall be deemed to evidence the same debt as the
mutilated, destroyed, lost or stolen Security.

      "Proceeding" has the meaning specified in Section 12.2.

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

      "Purchaser" means STI Investment Management, Inc., as purchaser of the
Preferred Securities pursuant to the Subscription Agreement.

      "Redemption Date" means, when used with respect to any Security to be
redeemed, the date fixed for such redemption by or pursuant to this Indenture.

      "Redemption Price" means, when used with respect to any Security to be
redeemed, in whole or in part, the price at which such security or portion
thereof is to be redeemed as fixed by or pursuant to this Indenture.

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

      "Regular Record Date" for the interest payable on any Interest Payment
Date with respect to the Securities means the date that is fifteen (15) days
preceding such Interest Payment Date (whether or not a Business Day).

      "Responsible Officer" means, with respect to the 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 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.

      "Rights Plan" means a plan of the Company providing for the issuance by
the Company to all holders of its Common Stock of rights entitling the holders
thereof to subscribe for or purchase shares of any class or series of capital
stock of the Company which rights (i) are deemed to be transferred with such
shares of such Common Stock and (ii) are also issued in respect of future
issuances of such Common Stock, in each case until the occurrence of a specified
event or events.

                                       8
<PAGE>

      "Securities" or "Security" means the Series A and Series B floating rate
unsecured junior subordinated deferrable interest notes authenticated and
delivered under this Indenture.

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

      "Securities Register" and "Securities Registrar" have the respective
meanings specified in Section 3.5.

      "Senior Debt" means the principal of and any premium and interest on
(including interest accruing on or after the filing of any petition in
bankruptcy or for reorganization relating to the Company, whether or not such
claim for post-petition interest is allowed in such proceeding) all Debt of the
Company, whether incurred on or prior to the date of this Indenture or
thereafter incurred, unless it is provided in the instrument creating or
evidencing the same or pursuant to which the same is outstanding, that such
obligations are not superior in right of payment to the Securities; provided,
however, that if the Company is subject to the regulation and supervision of an
"appropriate Federal banking agency" within the meaning of 12 U.S.C. 1813(q),
the Company shall have received the approval of such appropriate Federal banking
agency prior to issuing any such obligation if not otherwise generally approved;
provided further, that Senior Debt shall not include any other debt securities,
and guarantees in respect of such debt securities, issued to any trust other
than the Trust (or a trustee of such trust), partnership or other entity
affiliated with the Company that is a financing vehicle of the Company (a
"financing entity"), in connection with the issuance by such financing entity of
equity securities or other securities that are treated as equity capital for
regulatory capital purposes guaranteed by the Company pursuant to an instrument
that ranks pari passu with or junior in right of payment to the Indenture,
including, without limitation, the debt securities of the Company issued under
the Indenture, dated September 17, 1999, between the Company and Wilmington
Trust Company, as trustee.

      "Special Event" means the occurrence of a Capital Disqualification Event,
an Investment Company Event or a Tax Event.

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

      "Special Record Date" for the payment of any Defaulted Interest means a
date fixed by the Trustee pursuant to Section 3.1.

      "Stated Maturity" means thirty (30) years from the Original Issue Date.

      "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.

      "Subsidiary" means a Person more than fifty percent (50%) of the
outstanding voting stock or other voting interests of which is owned, directly
or indirectly, by the Company or by one or more other Subsidiaries, or by the
Company and one or more other Subsidiaries. For purposes of this definition,
"voting stock" means stock that ordinarily has voting power for the election of
directors, whether at all times or only so long as no senior class of stock has
such voting power by reason of any contingency.

                                       9
<PAGE>

      "Tax Event" means the receipt by the Company of an Opinion of Counsel
experienced in such matters to the effect that, as a result of (a) any amendment
to or change (including any announced prospective change) in the laws or any
regulations thereunder of the United States or any political subdivision or
taxing authority thereof or therein or (b) any judicial decision or any official
administrative pronouncement (including any private letter ruling, technical
advice memorandum or field service advice) or regulatory procedure, including
any notice or announcement of intent to adopt any such pronouncement or
procedure (an "Administrative Action"), regardless of whether such judicial
decision or Administrative Action is issued to or in connection with a
proceeding involving the Company or the Trust and whether or not subject to
review or appeal, which amendment, change, judicial decision or Administrative
Action is enacted, promulgated or announced, in each case, on or after the date
of issuance of the Securities, there is more than an insubstantial risk that (i)
the Trust is, or will be within ninety (90) days of the date of such opinion,
subject to United States federal income tax with respect to income received or
accrued on the Securities, (ii) interest payable by the Company on the
Securities is not, or within ninety (90) days of the date of such opinion, will
not be, deductible by the Company, in whole or in part, for United States
federal income tax purposes, or (iii) the Trust is, or will be within ninety
(90) days of the date of such opinion, subject to more than a de minimis amount
of other taxes, duties or other governmental charges.

      "Trust" has the meaning specified in the first recital of this Indenture.

      "Trust Agreement" means the Amended and Restated Trust Agreement executed
and delivered by the Company, the Property Trustee, Wilmington Trust Company, as
Delaware Trustee and the Administrative Trustees named therein,
contemporaneously with the execution and delivery of this Indenture, for the
benefit of the holders of the Trust Securities, as amended or supplemented from
time to time.

      "Trustee" means the Person named as the "Trustee" in the first paragraph
of this instrument, solely in its capacity as such and not in its individual
capacity, until a successor Trustee shall have become such pursuant to the
applicable provisions of this Indenture, and, thereafter, "Trustee" shall mean
or include each Person who is then a Trustee hereunder.

      "Trust Indenture Act" means the Trust Indenture Act of 1939, as amended
and as in effect on the date as of this Indenture.

      "Trust Securities" has the meaning specified in the first recital of this
Indenture.

      SECTION 1.2. Compliance Certificate and Opinions.

      (a) Upon any application or request by the Company to the Trustee to take
any action under any provision of this Indenture, the Company shall furnish to
the Trustee an Officers' Certificate stating that all conditions precedent
(including covenants compliance with which constitutes a condition precedent),
if any, provided for in this Indenture relating to the proposed action have been
complied with and an Opinion of Counsel stating that in the opinion of such
counsel all such conditions precedent (including covenants compliance with which
constitutes a condition precedent), if any, have been complied with, except
that, in the case of any such application or request as to which the furnishing
of such documents is specifically required by

                                       10
<PAGE>

any provision of this Indenture relating to such particular application or
request, no additional certificate or opinion need be furnished.

      (b) Every certificate with respect to compliance with a condition or
covenant provided for in this Indenture (other than the certificate provided
pursuant to Section 10.3) shall include:

            (i) a statement by each individual signing such certificate or
      opinion that such individual has read such covenant or condition and the
      definitions herein relating thereto;

            (ii) a brief statement as to the nature and scope of the examination
      or investigation upon which the statements or opinions of such individual
      contained in such certificate or opinion are based;

            (iii) a statement that, in the opinion of such individual, he or she
      has made such examination or investigation as is necessary to enable him
      or her to express an informed opinion as to whether or not such covenant
      or condition has been complied with; and

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

      SECTION 1.3. Forms of Documents Delivered to Trustee.

      (a) In any case where several matters are required to be certified by, or
covered by an opinion of, any specified Person, it is not necessary that all
such matters be certified by, or covered by the opinion of, only one such
Person, or that they be so certified or covered by only one document, but one
such Person may certify or give an opinion with respect to some matters and one
or more other such Persons as to other matters, and any such Person may certify
or give an opinion as to such matters in one or several documents.

      (b) Any certificate or opinion of an officer of the Company may be based,
insofar as it relates to legal matters, upon a certificate or opinion of, or
representations by, counsel, unless such officer knows, or after reasonable
inquiry should know, that the certificate or opinion or representations with
respect to matters upon which his or her certificate or opinion is based are
erroneous. Any such certificate or Opinion of Counsel may be based, insofar as
it relates to factual matters, upon a certificate or opinion of, or
representations by, an officer or officers of the Company stating that the
information with respect to such factual matters is in the possession of the
Company, unless such counsel knows, or after reasonable inquiry should know,
that the certificate or opinion or representations with respect to such matters
are erroneous.

      (c) Where any Person is required to make, give or execute two or more
applications, requests, consents, certificates, statements, opinions or other
instruments under this Indenture, they may, but need not, be consolidated and
form one instrument.

      (d) Whenever, subsequent to the receipt by the Trustee of any Board
Resolution, Officers' Certificate, Opinion of Counsel or other document or
instrument, a clerical, typographical or other inadvertent or unintentional
error or omission shall be discovered therein,

                                       11
<PAGE>

a new document or instrument may be substituted therefor in corrected form with
the same force and effect as if originally received in the corrected form and,
irrespective of the date or dates of the actual execution and/or delivery
thereof, such substitute document or instrument shall be deemed to have been
executed and/or delivered as of the date or dates required with respect to the
document or instrument for which it is substituted. Without limiting the
generality of the foregoing, any Securities issued under the authority of such
defective document or instrument shall nevertheless be the valid obligations of
the Company entitled to the benefits of this Indenture equally and ratably with
all other Outstanding Securities of the same series.

      SECTION 1.4. Acts of Holders.

      (a) Any request, demand, authorization, direction, notice, consent, waiver
or other action provided by this Indenture to be given to 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 herein otherwise expressly provided, such
action shall become effective when such instrument or instruments (including any
appointment of an agent) is or are delivered to the Trustee, and, where it is
hereby expressly required, to the Company. 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 Indenture and conclusive in favor of the
Trustee and the Company, if made in the manner provided in this Section 1.4.

      (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 the certificate of any 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 or her the execution thereof.
Where such execution is by a Person acting in other than his or her individual
capacity, such certificate or affidavit shall also constitute sufficient proof
of his or her authority. The fact and date of the execution by any Person of any
such instrument or writing, or the authority of the Person executing the same,
may also be proved in any other manner that the Trustee deems sufficient and in
accordance with such reasonable rules as the Trustee may determine.

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

      (d) Any request, demand, authorization, direction, notice, consent, waiver
or other action by the Holder of any Security shall bind every future Holder of
the same Security and the Holder of every Security issued upon the registration
of transfer thereof or in exchange therefor or in lieu thereof in respect of
anything done or suffered to be done by the Trustee or the Company in reliance
thereon, whether or not notation of such action is made upon such Security.

      (e) Without limiting the foregoing, a Holder entitled to take any action
hereunder with regard to any particular Security may do so with regard to all or
any part of the principal amount of such 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 principal amount.

                                       12
<PAGE>

      (f) Except as set forth in paragraph (g) of this Section 1.4, the Company
may set any day as a record date for the purpose of determining the Holders of
Outstanding Securities entitled to give, make or take any request, demand,
authorization, direction, notice, consent, waiver or other action provided or
permitted by this Indenture to be given, made or taken by Holders of Securities,
either collectively or voting as separate series to the extend required under
the terms of this Indenture. If any record date is set pursuant to this
paragraph, the Holders of the relevant Outstanding Securities on such record
date, and no other Holders, shall be entitled to take the relevant action,
whether or not such Holders remain Holders after such record date; provided,
that no such action shall be effective hereunder unless taken on or prior to the
applicable Expiration Date (as defined below) by Holders of the requisite
principal amount of Outstanding Securities on such record date. Nothing in this
paragraph shall be construed to prevent the Company from setting a new record
date for any action for which a record date has previously been set pursuant to
this paragraph (whereupon the record date previously set shall automatically and
with no action by any Person be canceled and of no effect). Promptly after any
record date is set pursuant to this paragraph, the Company, at its own expense,
shall cause notice of such record date, the proposed action by Holders and the
applicable Expiration Date to be given to the Trustee in writing and to each
Holder of Securities in the manner and to the extent set forth in Section 1.6.

      (g) The Trustee may set any day as a record date for the purpose of
determining the Holders of Outstanding Securities entitled to join in the giving
or making of (i) any Notice of Default, (ii) any declaration of acceleration or
rescission or annulment thereof referred to in Section 5.2, (iii) any request to
institute proceedings referred to in Section 5.7(b) or (iv) any direction
referred to in Section 5.12. If any record date is set pursuant to this
paragraph, the Holders of any applicable series of Outstanding Securities on
such record date, and no other Holders, shall be entitled to join in such
notice, declaration, request or direction, whether or not such Holders remain
Holders after such record date; provided, that no such action shall be effective
hereunder unless taken on or prior to the applicable Expiration Date by Holders
of the requisite principal amount of Outstanding Securities on such record date.
Nothing in this paragraph shall be construed to prevent the Trustee from setting
a new record date for any action for which a record date has previously been set
pursuant to this paragraph (whereupon the record date previously set shall
automatically and with no action by any Person be canceled and of no effect).
Promptly after any record date is set pursuant to this paragraph, the Trustee,
at the Company's expense, shall cause notice of such record date, the proposed
action by Holders and the applicable Expiration Date to be given to the Company
in writing and to each Holder of Securities of the series with respect to which
action is proposed to be taken, with such notice to be given in the manner set
forth in Section 1.6.

      (h) With respect to any record date set pursuant to paragraph (f) or (g)
of this Section 1.4, the party hereto that sets such record date may designate
any day as the "Expiration Date" and from time to time may change the Expiration
Date to any earlier or later day; provided, that no such change shall be
effective unless notice of the proposed new Expiration Date is given to the
other party hereto in writing, and to each Holder of Securities in the manner
set forth in Section 1.6, on or prior to the existing Expiration Date. If an
Expiration Date is not designated with respect to any record date set pursuant
to this Section 1.4, the party hereto that set such record date shall be deemed
to have initially designated the ninetieth (90th) day after such record

                                       13
<PAGE>

date as the Expiration Date with respect thereto, subject to its right to change
the Expiration Date as provided in this paragraph. Notwithstanding the
foregoing, no Expiration Date shall be later than the one hundred and eightieth
(180th) day after the applicable record date.

      SECTION 1.5. Notices, Etc.

      Any request, demand, authorization, direction, notice, consent, waiver,
Act of Holders, or other document provided or permitted by this Indenture to be
made upon, given or furnished to, or filed with:

      (a) the Trustee by any Holder, any holder of Preferred Securities or the
Company shall be sufficient for every purpose hereunder if made, given,
furnished or filed in writing to or with the Trustee at its Corporate Trust
Office,

      (b) the Company by the Trustee, any Holder or any holder of Preferred
Securities shall be sufficient for every purpose hereunder if in writing and
mailed, first class, postage prepaid, to the Company addressed to it at 5650
Byron Center Avenue SW, Wyoming, Michigan 49509, Attn: Chief Financial Officer,
or at any other address previously furnished in writing to the Trustee by the
Company,

      (c) the Placement Agent by the Trustee, the Company, any Holder or any
holder or beneficial owner of the Preferred Securities, shall be sufficient for
every purpose hereunder if in writing and mailed, first-class postage prepaid to
the Placement Agent at 303 Peachtree Street, N.E., 24th Floor, Mail Code 3950,
Atlanta, Georgia 30308 or any other address previously furnished by the
Placement Agent, or

      (d) the Purchaser by the Trustee, the Company, any Holder or any holder or
beneficial owner of the Preferred Securities, shall be sufficient for every
purpose hereunder if in writing and mailed first-class postage prepaid to the
Purchaser at 2202 Polly Drummond Office Park, Newark, Delaware 19711, or any
other address previously furnished by the Purchaser.

      SECTION 1.6. Notice to Holders; Waiver.

      Where this Indenture provides for notice to Holders of any event, such
notice shall be sufficiently given (unless otherwise herein expressly provided)
if in writing and mailed, first class, postage prepaid, to each Holder affected
by such event to the address of such Holder as it appears in the Securities
Register, not later than the latest date, and not earlier than the earliest
date, prescribed for the giving of such notice. If, by reason of the suspension
of or irregularities in regular mail service or for any other reason, it shall
be impossible or impracticable to mail notice of any event to Holders when said
notice is required to be given pursuant to any provision of this Indenture, then
any manner of giving such notice as shall be satisfactory to the Trustee shall
be deemed to be a sufficient giving of such notice. In any case where notice to
Holders is given by mail, neither the failure to mail such notice, nor any
defect in any notice so mailed, to any particular Holder shall affect the
sufficiency of such notice with respect to other Holders. Where this Indenture
provides for notice in any manner, such notice may be waived in writing by the
Person entitled to receive such notice, either before or after the event, and
such waiver shall be the equivalent of such notice. Waivers of notice by Holders
shall be filed with the Trustee, but

                                       14
<PAGE>

such filing shall not be a condition precedent to the validity of any action
taken in reliance upon such waiver.

      SECTION 1.7. Effect of Headings and Table of Contents.

      The Article and Section headings herein and the Table of Contents are for
convenience only and shall not affect the construction of this Indenture.

      SECTION 1.8. Successors and Assigns.

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

      SECTION 1.9. Separability Clause.

      If any provision in this Indenture or in the Securities 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 1.10. Benefits of Indenture.

      Nothing in this Indenture or in the Securities, express or implied, shall
give to any Person, other than the parties hereto and their successors and
assigns, the holders of Senior Debt, the Holders of the Securities and, to the
extent expressly provided in Sections 5.2, 5.8, 5.9, 5.11, 5.13, 9.2 and 10.7,
the holders of Preferred Securities, any benefit or any legal or equitable
right, remedy or claim under this Indenture.

      SECTION 1.11. Governing Law.

      This Indenture and the rights and obligations of each of the Holders, the
Company and the Trustee shall be construed and enforced in accordance with and
governed by the laws of the State of New York without reference to its conflict
of laws provisions (other than Section 5-1401 of the General Obligations Law).

      SECTION 1.12. Submission to Jurisdiction.

      ANY LEGAL ACTION OR PROCEEDING BY OR AGAINST ANY PARTY HERETO OR WITH
RESPECT TO OR ARISING OUT OF THIS INDENTURE MAY BE BROUGHT IN OR REMOVED TO THE
COURTS OF THE STATE OF NEW YORK, IN AND FOR THE COUNTY OF NEW YORK, OR OF THE
UNITED STATES OF AMERICA FOR THE SOUTHERN DISTRICT OF NEW YORK (IN EACH CASE
SITTING IN THE BOROUGH OF MANHATTAN). BY EXECUTION AND DELIVERY OF THIS
INDENTURE, EACH PARTY ACCEPTS, FOR ITSELF AND IN RESPECT OF ITS PROPERTY,
GENERALLY

                                       15
<PAGE>

AND UNCONDITIONALLY, THE JURISDICTION OF THE AFORESAID COURTS (AND COURTS OF
APPEALS THEREFROM) FOR LEGAL PROCEEDINGS ARISING OUT OF OR IN CONNECTION WITH
THIS INDENTURE.

      SECTION 1.13. Non-Business Days.

      If any Interest Payment Date, Redemption Date or Stated Maturity of any
Security shall not be a Business Day, then (notwithstanding any other provision
of this Indenture or the Securities) payment of interest, premium or principal
or other amounts in respect of such Security shall not be made on such date, but
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 such Interest Payment Date, Redemption Date or Stated Maturity, as the
case may be, until such 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 the Interest Payment Date or Redemption Date or at the
Stated Maturity.

                                   ARTICLE II

                                 Security Forms

      SECTION 2.1. Form of Security.

      Any Security issued hereunder shall be in substantially the following
form:

                          MERCANTILE BANK CORPORATION

Series [A][B] Floating Rate Junior Subordinated Note due 2034

No. _____________                                                  $16,495,000

      Mercantile Bank Corporation, a corporation organized and existing under
the laws of Michigan (hereinafter called the "Company," which term includes any
successor Person under the Indenture hereinafter referred to), for value
received, hereby promises to pay to Wilmington Trust Company, not in its
individual capacity but solely as Property Trustee for Mercantile Bank Capital
Trust I, a Delaware statutory trust (the "Holder"), or registered assigns, the
principal sum of Sixteen Million Four Hundred Ninety Five Thousand ($16,495,000)
Dollars or such other principal amount represented hereby as may be set forth in
the records of the Securities Registrar hereinafter referred to in accordance
with the Indenture on ___________________ ___, 2034. The Company further
promises to pay interest on said principal sum from the date of original
issuance, or from the most recent Interest Payment Date to which interest has
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 ________________ ___, 200__, or if any such day is not a Business
Day, 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
such Interest Payment Date until such 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

                                       16
<PAGE>

preceding Business Day, in each case, with the same force and effect as if made
on the Interest Payment Date, at an annual rate equal to ________% beginning on
(and including) the Original Issue Date and ending on (but excluding)
_______________ ___, 200__ and at an annual rate for each successive period
beginning on (and including) _______________ ___, 200__, and each successive
Interest Payment Date, and ending on (but excluding) the next succeeding
Interest Payment Date equal to LIBOR plus 2.18%, together with Additional Tax
Sums, if any, as provided in Section 10.5 of the Indenture, until the principal
hereof is paid or duly provided for or made available for payment; provided,
that any overdue principal, premium or Additional Tax Sums and any overdue
installment of interest shall bear Additional Interest (to the extent that the
payment of such interest shall be legally enforceable) at a variable rate per
annum, reset quarterly, equal to LIBOR plus 2.18%, compounded quarterly, from
the dates such amounts are due until they are paid or made available for
payment, and such interest shall be payable on demand.

      The amount of interest payable shall be computed on the basis of a 360-day
year and the actual number of days elapsed in the relevant interest period. The
amount of interest payable for any full interest period shall be computed by
dividing the applicable rate per annum by four. The interest so payable, and
punctually paid or duly provided for, on any Interest Payment Date shall, as
provided in the Indenture, be paid to the Person in whose name this Series
[A][B] Security (or one or more Predecessor Securities) is registered at the
close of business on the Regular Record Date for such interest installment. Any
such interest not so punctually paid or duly provided for shall forthwith cease
to be payable to the Holder on such Regular Record Date and may either be paid
to the Person in whose name this Series [A][B] Security (or one or more
Predecessor Securities) is registered at the close of business on a Special
Record Date for the payment of such Defaulted Interest to be fixed by the
Trustee, notice whereof shall be given to Holders of Series [A][B] Securities
not less than ten (10) days prior to such Special Record Date, or be paid at any
time in any other lawful manner not inconsistent with the requirements of any
securities exchange on which the Series [A][B] Securities may be listed, and
upon such notice as may be required by such exchange, all as more fully provided
in the Indenture.

      So long as no Event of Default pursuant to Sections 5.1(c), (e) or (f) of
the Indenture has occurred and is continuing, the Company shall have the right,
at any time and from time to time during the term of this Series [A][B]
Security, to defer the payment of interest on this Series [A][B] Security for a
period of up to twenty (20) consecutive quarterly interest payment periods (each
such period, an "Extension Period"), during which Extension Period(s), no
interest shall be due and payable (except any Additional Tax Sums that may be
due and payable). No Extension Period shall end on a date other than an Interest
Payment Date, and no Extension Period shall extend beyond the Stated Maturity of
the principal of this Series [A][B] Security. No interest shall be due and
payable during an Extension Period (except any Additional Tax Sums that may be
due and payable), 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 made available for payment. At
the end of any such Extension Period, the Company shall pay all interest then
accrued and unpaid on this Series [A][B] Security, together with such Additional
Interest. Prior

                                       17
<PAGE>

to the termination of any such Extension Period, the Company may further defer
the payment of interest; provided, that (i) all such previous and further
extensions comprising such Extension Period do not exceed twenty (20) quarterly
interest payment periods, (ii) no Extension Period shall end on a date other
than an Interest Payment Date and (iii) no Extension Period shall extend beyond
the Stated Maturity of the principal of this Series [A][B] Security. Upon the
termination of any such Extension Period and upon the payment of all accrued and
unpaid interest and any Additional Interest then due on any Interest Payment
Date, the Company may elect to begin a new Extension Period; provided, that (i)
such Extension Period does not exceed twenty (20) quarterly interest payment
periods, (ii) no Extension Period shall end on a date other than an Interest
Payment Date and (iii) no Extension Period shall extend beyond the Stated
Maturity of the principal of this Series [A][B] Security. The Company shall give
(i) the Holder of this Series [A][B] Security, (ii) the Trustee, (iii) the
Property Trustee and (iv) any beneficial owner of the Series [A][B] Preferred
Securities reasonably identified to the Company (which identification may be
made either by such beneficial owner or by the Placement Agent or the Purchaser)
written notice of its election to begin any such Extension Period at least five
(5) Business Days prior to the next succeeding Interest Payment Date on which
interest on this Series [A][B] Security would be payable but for such deferral.

      During any such Extension Period, the Company 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 Company'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 Company that rank pari passu in
all respects with or junior in interest to the Securities (other than (a)
repurchases, redemptions or other acquisitions of shares of capital stock of the
Company in connection with (1) any employment contract, stock option plan,
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
Company (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 Company's capital stock (or any capital stock of a
Subsidiary of the Company) for any class or series of the Company's capital
stock or of any class or series of the Company's indebtedness for any class or
series of the Company's capital stock, (c) the purchase of fractional interests
in shares of the Company'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, 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).

      Payment of principal of, premium, if any, and interest on this Series
[A][B] Security shall be made in such coin or currency of the United States of
America as at the time of payment is legal tender for payment of public and
private debts. Payments of principal, premium, if any, and interest due at the
Maturity of this Series [A][B] Security shall be made at the office or agency of
the Company maintained for that purpose in the Place of Payment upon surrender
of

                                       18
<PAGE>

such Series [A][B] Securities to the Paying Agent, and payments of interest
shall be made, subject to such surrender where applicable, by wire transfer at
such place and to such account at a banking institution in the United States as
may be designated in writing to the Paying Agent 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.
Notwithstanding the foregoing, so long as the holder of this Series [A][B]
Security is the Property Trustee, the payment of the principal of (and premium,
if any) and interest (including any overdue installment of interest and
Additional Tax Sums, if any) on this Series [A][B] Security will be made at such
place and to such account as may be designated by the Property Trustee.

      The indebtedness evidenced by this Series [A][B] Security 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, and this Series [A][B] Security is
issued subject to the provisions of the Indenture with respect thereto. Each
Holder of this Series [A][B] Security, by accepting the same, (a) agrees to and
shall be bound by such provisions, (b) authorizes and directs the Trustee on his
or her behalf to take such actions as may be necessary or appropriate to
effectuate the subordination so provided and (c) appoints the Trustee his or her
attorney-in-fact for any and all such purposes. Each Holder hereof, by his or
her acceptance hereof, waives all notice of the acceptance of the subordination
provisions contained herein and in the Indenture by each holder of Senior Debt,
whether now outstanding or hereafter incurred, and waives reliance by each such
holder upon said provisions.

      Unless the certificate of authentication hereon has been executed by the
Trustee by manual signature, this Series [A][B] Security shall not be entitled
to any benefit under the Indenture or be valid or obligatory for any purpose.

      This Series [A][B] Security is one of a duly authorized issue of
securities of the Company (the "Securities") issued under the Junior
Subordinated Indenture, dated as of September 16, 2004 (the "Indenture"),
between the Company and Wilmington Trust Company, as Trustee (in such capacity,
the "Trustee," which term includes any successor trustee under the Indenture),
to which Indenture and all indentures supplemental thereto reference is hereby
made for a statement of the respective rights, limitations of rights, duties and
immunities thereunder of the Company, the Trustee, the holders of Senior Debt
and the Holders of the Securities, and of the terms upon which the Securities
are, and are to be, authenticated and delivered.

      All terms used in this Series [A][B] Security that are defined in the
Indenture or in the Amended and Restated Trust Agreement, dated as of September
16, 2004 (as modified, amended or supplemented from time to time, the "Trust
Agreement"), relating to Mercantile Bank Capital Trust I (the "Trust"), among
the Company, as Depositor, the Trustees named therein and the Holders from time
to time of the Trust Securities issued pursuant thereto, shall have the meanings
assigned to them in the Indenture or the Trust Agreement, as the case may be.

      The Company may, on any Interest Payment Date, at its option, upon not
less than thirty (30) days' nor more than sixty (60) days' written notice to the
Holders of the Series [A][B]

                                       19
<PAGE>

Securities (unless a shorter notice period shall be satisfactory to the Trustee)
on or after the fifth (5th) anniversary of the initial Interest Payment Date and
subject to the terms and conditions of Article XI of the Indenture, redeem this
Series [A][B] Security in whole at any time or in part from time to time at a
Redemption Price equal to one hundred percent (100%) of the principal amount
hereof, 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 Company shall have received the prior approval of
the Federal Reserve if then required.

      In addition, upon the occurrence and during the continuation of a Special
Event, the Company may, at its option, upon not less than thirty (30) days' nor
more than sixty (60) days' written notice to the Holders of the Securities
(unless a shorter notice period shall be satisfactory to the Trustee), redeem
the Securities, in whole but not in part, subject to the terms and conditions of
Article XI of the Indenture at the Special Event Redemption Price; provided,
that the Company shall have received the prior approval of the Federal Reserve
if then required.

      In the event of redemption of this Series [A][B] Security in part only, a
new Series [A][B] Security or Securities for the unredeemed portion hereof will
be issued in the name of the Holder hereof upon the cancellation hereof. If less
than all the Series [A][B] Securities are to be redeemed, the particular Series
[A][B] Securities to be redeemed shall be selected not more than sixty (60) days
prior to the Redemption Date by the Trustee from the Outstanding Series [A][B]
Securities not previously called for redemption, by such method as the Trustee
shall deem fair and appropriate and which may provide for the selection for
redemption of a portion of the principal amount of any Series [A][B] Security.

      The Indenture permits, with certain exceptions as therein provided, the
Company and the Trustee at any time to enter into a supplemental indenture or
indentures for the purpose of modifying in any manner the rights and obligations
of the Company and of the Holders of the Securities, with the consent of the
Holders of not less than a majority in principal amount of the Outstanding
Securities. The Indenture also contains provisions permitting Holders of
specified percentages in principal amount of the Securities, on behalf of the
Holders of all Securities of the same series or collectively, depending on the
requirements for the matter presented, to waive compliance by the Company with
certain provisions of the Indenture and certain past defaults under the
Indenture and their consequences. Any such consent or waiver by the Holder of
this Series [A][B] Security shall be conclusive and binding upon such Holder and
upon all future Holders of this Series [A][B] Security and of any Series [A][B]
Security issued upon the registration of transfer hereof or in exchange herefor
or in lieu hereof, whether or not notation of such consent or waiver is made
upon this Series [A][B] Security.

      No reference herein to the Indenture and no provision of this Series
[A][B] Security or of the Indenture shall alter or impair the obligation of the
Company, which is absolute and unconditional, to pay the principal of and any
premium and interest, including any Additional Interest, on this Series [A][B]
Security at the times, place and rate, and in the coin or currency, herein
prescribed.

      As provided in the Indenture and subject to certain limitations therein
set forth, the transfer of this Series [A][B] Security is registrable in the
Securities Register, upon surrender of

                                       20
<PAGE>

this Series [A][B] Security for registration of transfer at the office or agency
of the Company maintained for such purpose, duly endorsed by, or accompanied by
a written instrument of transfer in form satisfactory to the Company and the
Securities Registrar and duly executed by, the Holder hereof or such Holder's
attorney duly authorized in writing, and thereupon one or more new Series [A][B]
Securities, of like tenor, of authorized denominations and for the same
aggregate principal amount, will be issued to the designated transferee or
transferees.

      The Series [A][B] Securities are issuable only in registered form without
coupons in minimum denominations of $100,000 and any integral multiple of $1,000
in excess thereof. As provided in the Indenture and subject to certain
limitations therein set forth, Series [A][B] Securities are exchangeable for a
like aggregate principal amount of Securities of the same series and of like
tenor of a different authorized denomination, as requested by the Holder
surrendering the same.

      No service charge shall be made for any such registration of transfer or
exchange, but the Company may require payment of a sum sufficient to cover any
tax or other governmental charge payable in connection therewith.

      The Company, the Trustee and any agent of the Company or the Trustee may
treat the Person in whose name this Series [A][B] Security is registered as the
owner hereof for all purposes, whether or not this Series [A][B] Security be
overdue, and neither the Company, the Trustee nor any such agent shall be
affected by notice to the contrary.

      The Company and, by its acceptance of this Series [A][B] Security or a
beneficial interest therein, the Holder of, and any Person that acquires a
beneficial interest in, this Series [A][B] Security agree that, for United
States federal, state and local tax purposes, it is intended that this Series
[A][B] Security constitute indebtedness.

      This Series [A][B] Security shall be construed and enforced in accordance
with and governed by the laws of the State of New York, without reference to its
conflict of laws provisions (other than Section 5-1401 of the General
Obligations Law).

      IN WITNESS WHEREOF, the Company has caused this instrument to be duly
executed.

                                            MERCANTILE BANK CORPORATION

                                            By: ________________________________
                                            Name:
                                            Title:

      SECTION 2.2. Restricted Legend.

      (a) Any Security issued hereunder shall bear a legend in substantially the
following form:

                                       21
<PAGE>

      THIS SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE
      HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF THE DEPOSITORY
      TRUST COMPANY ("DTC") OR A NOMINEE OF DTC. THIS 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 INDENTURE, AND
      NO TRANSFER OF THIS SECURITY (OTHER THAN A TRANSFER OF THIS 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 SECURITY IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF DTC
      TO THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR
      PAYMENT, AND ANY 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 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 SECURITIES, AND 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 SECURITIES IS HEREBY NOTIFIED THAT THE SELLER OF THE 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 SECURITIES REPRESENTED BY THIS CERTIFICATE AGREES FOR
      THE BENEFIT OF THE COMPANY THAT (A) SUCH SECURITIES MAY BE OFFERED, RESOLD
      OR OTHERWISE TRANSFERRED ONLY (I) TO THE COMPANY, (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

                                       22
<PAGE>

      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 COMPANY TO REQUIRE AN OPINION OF COUNSEL
      AND OTHER INFORMATION SATISFACTORY TO IT AND (B) THE HOLDER WILL NOTIFY
      ANY PURCHASER OF ANY SECURITIES FROM IT OF THE RESALE RESTRICTIONS
      REFERRED TO IN (A) ABOVE.

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

                                       23
<PAGE>

      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 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 Security unless there
is delivered to the Company 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, the
Company shall execute and deliver to the Trustee, and the Trustee shall deliver,
at the written direction of the Company, a Security that does not bear the
legend.

      SECTION 2.3. Form of Trustee's Certificate of Authentication.

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

      This is one of the Securities designated therein referred to in the
within-mentioned Indenture.

Dated:

                                          Wilmington Trust Company, as Trustee

                                          By: __________________________________
                                                     Authorized officer

      SECTION 2.4. Temporary Securities.

      (a) Pending the preparation of definitive Securities, the Company may
execute, and upon Company Order the Trustee shall authenticate and deliver,
temporary Securities that are printed, lithographed, typewritten, mimeographed
or otherwise produced, in any denomination, substantially of the tenor of the
definitive Securities in lieu of which they are issued and with such appropriate
insertions, omissions, substitutions and other variations as the officers
executing such Securities may determine, as evidenced by their execution of such
Securities.

      (b) If temporary Securities are issued, the Company will cause definitive
Securities to be prepared without unreasonable delay. After the preparation of
definitive Securities, the temporary Securities shall be exchangeable for
definitive Securities upon surrender of the

                                       24
<PAGE>

temporary Securities at the office or agency of the Company designated for that
purpose without charge to the Holder. Upon surrender for cancellation of any one
or more temporary Securities, the Company shall execute and the Trustee shall
authenticate and deliver in exchange therefor one or more definitive Securities
of any authorized denominations having the same Original Issue Date and Stated
Maturity and having the same terms as such temporary Securities. Until so
exchanged, the temporary Securities shall in all respects be entitled to the
same benefits under this Indenture as definitive Securities.

      SECTION 2.5. Definitive Securities.

      The Securities issued on the Original Issue Date shall be in definitive
form. The definitive Securities shall be printed, lithographed or engraved, or
produced by any combination of these methods, if required by any securities
exchange on which the Securities may be listed, on a steel engraved border or
steel engraved borders or may be produced in any other manner permitted by the
rules of any securities exchange on which the Securities may be listed, all as
determined by the officers executing such Securities, as evidenced by their
execution of such Securities.

                                  ARTICLE III

                                 The Securities

      SECTION 3.1. Payment of Principal and Interest.

      (a) The unpaid principal amount of (i) the Series A Securities shall bear
interest at an annual rate equal to 4.06% beginning on (and including) the
Original Issue Date 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 Interest Payment Date, and ending on (but excluding)
the next succeeding Interest Payment Date equal to LIBOR plus 2.18%, and (ii)
the Series B Securities shall bear interest at an annual rate equal to 4.64%
beginning on (and including) the Original Issue Date 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 Interest
Payment Date, and ending on (but excluding) the next succeeding Interest Payment
Date equal to LIBOR plus 2.18%, and any overdue principal, premium or Additional
Tax Sums and any overdue installment of interest 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%, from the
dates such amounts are due until they are paid or funds for the payment thereof
are made available for payment.

      (b) Interest and Additional Interest on any Security that is payable, and
is punctually paid or duly provided for, on any Interest Payment Date shall be
paid to the Person in whose name that Security (or one or more Predecessor
Securities) is registered at the close of business on the Regular Record Date
for such interest, except that interest and any Additional Interest payable on
the Stated Maturity (or any date of principal repayment upon early maturity) of
the principal of a Security or on a Redemption Date shall be paid to the Person
to whom principal is paid. The initial payment of interest on any Security that
is issued between a Regular Record Date and the related Interest Payment Date
shall be payable as provided in such Security.

                                       25
<PAGE>

      (c) Any interest on any Security that is due and payable, but is not
timely paid or duly provided for, on any Interest Payment Date for Securities
(herein called "Defaulted Interest") shall forthwith cease to be payable to the
registered Holder on the relevant Regular Record Date by virtue of having been
such Holder, and such Defaulted Interest may be paid by the Company, at its
election in each case, as provided in paragraph (i) or (ii) below:

            (i) The Company may elect to make payment of any Defaulted Interest
      to the Persons in whose names the Securities (or their respective
      Predecessor Securities) are registered at the close of business on a
      Special Record Date for the payment of such Defaulted Interest (a "Special
      Record Date"), which shall be fixed in the following manner. At least
      thirty (30) days prior to the date of the proposed payment, the Company
      shall notify the Trustee in writing of the amount of Defaulted Interest
      proposed to be paid on each Security and the date of the proposed payment,
      and at the same time the Company shall deposit with the Trustee an amount
      of money equal to the aggregate amount proposed to be paid in respect of
      such Defaulted Interest or shall make arrangements satisfactory to the
      Trustee for such deposit prior to the date of the proposed payment, such
      money when deposited to be held in trust for the benefit of the Persons
      entitled to such Defaulted Interest. Thereupon the Trustee shall fix a
      Special Record Date for the payment of such Defaulted Interest, which
      shall be not more than fifteen (15) days and not less than ten (10) days
      prior to the date of the proposed payment and not less than ten (10) days
      after the receipt by the Trustee of the notice of the proposed payment.
      The Trustee shall promptly notify the Company of such Special Record Date
      and, in the name and at the expense of the Company, shall cause notice of
      the proposed payment of such Defaulted Interest and the Special Record
      Date therefor to be mailed, first class, postage prepaid, to each Holder
      of a Security at the address of such Holder as it appears in the
      Securities Register not less than ten (10) days prior to such Special
      Record Date. Notice of the proposed payment of such Defaulted Interest and
      the Special Record Date therefor having been so mailed, such Defaulted
      Interest shall be paid to the Persons in whose names the Securities (or
      their respective Predecessor Securities) are registered on such Special
      Record Date; or

            (ii) The Company may make payment of any Defaulted Interest in any
      other lawful manner not inconsistent with the requirements of any
      securities exchange on which the Securities may be listed and, upon such
      notice as may be required by such exchange (or by the Trustee if the
      Securities are not listed), if, after notice given by the Company to the
      Trustee of the proposed payment pursuant to this clause, such payment
      shall be deemed practicable by the Trustee.

      (d) Payments of interest on the Securities shall include interest accrued
to but excluding the respective Interest Payment Dates. Interest payments for
the Securities shall be computed and paid on the basis of a 360-day year and the
actual number of days elapsed in the relevant interest period. The amount of
interest payable for any full interest period shall be computed by dividing the
applicable rate per annum by four.

      (e) Payment of principal of, premium, if any, and interest on the
Securities shall be made in such coin or currency of the United States of
America as at the time of payment is legal

                                       26
<PAGE>

tender for payment of public and private debts. Payments of principal, premium,
if any, and interest due at the Maturity of such Securities shall be made at the
Place of Payment upon surrender of such Securities to the Paying Agent and
payments of interest shall be made subject to such surrender where applicable,
by wire transfer at such place and to such account at a banking institution in
the United States as may be designated in writing to the Paying Agent 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. Notwithstanding the foregoing, so long as the holder of the
Security is the Property Trustee, the payment of the principal of (and premium
if any) and interest (including any overdue installment of interest and
Additional Tax Sums, if any) on the Security will be made at such place and to
such account as may be designated by the Property Trustee.

      (f) Subject to the foregoing provisions of this Section 3.1, each Security
delivered under this Indenture upon transfer of or in exchange for or in lieu of
any other Security shall carry the rights to interest accrued and unpaid, and to
accrue, that were carried by such other Security.

      SECTION 3.2. Denominations.

      The Securities shall be in registered form without coupons and shall be
issuable in minimum denominations of $100,000 and any integral multiple of
$1,000 in excess thereof.

      SECTION 3.3. Execution, Authentication, Delivery and Dating.

      (a) At any time and from time to time after the execution and delivery of
this Indenture, the Company may deliver Securities in an aggregate principal
amount (including all then Outstanding Securities) not in excess of $32,990,000
executed by the Company to the Trustee for authentication, together with a
Company Order for the authentication and delivery of such Securities, and the
Trustee in accordance with the Company Order shall authenticate and deliver such
Securities. In authenticating such Securities, and accepting the additional
responsibilities under this Indenture in relation to such Securities, the
Trustee shall be entitled to receive, and shall be fully protected in relying
upon:

            (i) a copy of any Board Resolution relating thereto; and

            (ii) an Opinion of Counsel stating that such Securities, when
      authenticated and delivered by the Trustee and issued by the Company in
      the manner and subject to any conditions specified in such Opinion of
      Counsel, will constitute valid and legally binding obligations of the
      Company, subject to bankruptcy, insolvency, fraudulent transfer,
      reorganization, moratorium and similar laws of general applicability
      relating to or affecting creditors' rights and to general equity
      principles.

      (b) The Securities shall be executed on behalf of the Company by its
Chairman of the Board, its Vice Chairman of the Board, its President or one of
its Vice Presidents. The signature of any of these officers on the Securities
may be manual or facsimile. Securities bearing the

                                       27
<PAGE>

manual or facsimile signatures of individuals who were at any time the proper
officers of the Company shall bind the Company, notwithstanding that such
individuals or any of them have ceased to hold such offices prior to the
authentication and delivery of such Securities or did not hold such offices at
the date of such Securities.

      (c) No Security shall be entitled to any benefit under this Indenture or
be valid or obligatory for any purpose, unless there appears on such Security a
certificate of authentication substantially in the form provided for herein
executed by the Trustee by the manual signature of one of its authorized
officers, and such certificate upon any Security shall be conclusive evidence,
and the only evidence, that such Security has been duly authenticated and
delivered hereunder. Notwithstanding the foregoing, if any Security shall have
been authenticated and delivered hereunder but never issued and sold by the
Company, and the Company shall deliver such Security to the Trustee for
cancellation as provided in Section 3.8, for all purposes of this Indenture such
Security shall be deemed never to have been authenticated and delivered
hereunder and shall never be entitled to the benefits of this Indenture.

      (d) Each Security shall be dated the date of its authentication.

      SECTION 3.4. Global Securities.

      (a) Upon the election of the Holder after the Original Issue Date, which
election need not be in writing, the Securities owned by such Holder shall be
issued in the form of one or more Global Securities registered in the name of
the Depositary or its nominee. Each Global Security issued under this Indenture
shall be registered in the name of the Depositary designated by the Company for
such Global Security or a nominee thereof and delivered to such Depositary or a
nominee thereof or custodian therefor, and each such Global Security shall
constitute a single Security for all purposes of this Indenture.

      (b) Notwithstanding any other provision in this Indenture, no Global
Security may be exchanged in whole or in part for Securities registered, and no
transfer of a Global Security in whole or in part may be registered, in the name
of any Person other than the Depositary for such Global Security or a nominee
thereof unless (i) such Depositary advises the Trustee and the Company in
writing that such Depositary is no longer willing or able to properly discharge
its responsibilities as Depositary with respect to such Global Security, and no
qualified successor is appointed by the Company within ninety (90) days of
receipt by the Company of such notice, (ii) such Depositary ceases to be a
clearing agency registered under the Exchange Act and no successor is appointed
by the Company within ninety (90) days after obtaining knowledge of such event,
(iii) the Company executes and delivers to the Trustee a Company Order stating
that the Company elects to terminate the book-entry system through the
Depositary or (iv) an Event of Default shall have occurred and be continuing.
Upon the occurrence of any event specified in clause (i), (ii), (iii) or (iv)
above, the Trustee shall notify the Depositary and instruct the Depositary to
notify all owners of beneficial interests in such Global Security of the
occurrence of such event and of the availability of Securities to such owners of
beneficial interests requesting the same. Upon the issuance of such Securities
and the registration in the Securities Register of such Securities in the names
of the Holders of the beneficial interests therein, the Trustees shall recognize
such holders of beneficial interests as Holders.

                                       28
<PAGE>

      (c) If any Global Security is to be exchanged for other Securities or
canceled in part, or if another Security is to be exchanged in whole or in part
for a beneficial interest in any Global Security, then either (i) such Global
Security shall be so surrendered for exchange or cancellation as provided in
this Article III or (ii) the principal amount thereof shall be reduced or
increased by an amount equal to the portion thereof to be so exchanged or
canceled, or equal to the principal amount of such other Security to be so
exchanged for a beneficial interest therein, as the case may be, by means of an
appropriate adjustment made on the records of the Securities Registrar,
whereupon the Trustee, in accordance with the Applicable Depository Procedures,
shall instruct the Depositary or its authorized representative to make a
corresponding adjustment to its records. Upon any such surrender or adjustment
of a Global Security by the Depositary, accompanied by registration
instructions, the Company shall execute and the Trustee shall authenticate and
deliver any Securities issuable in exchange for such Global Security (or any
portion thereof) in accordance with the instructions of the Depositary. The
Trustee shall not 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.

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

      (e) Securities distributed to holders of Book-Entry Preferred Securities
(as defined in the applicable Trust Agreement) upon the dissolution of the Trust
shall be distributed in the form of one or more Global Securities registered in
the name of a Depositary or its nominee, and deposited with the Securities
Registrar, as custodian for such Depositary, or with such Depositary, for credit
by the Depositary to the respective accounts of the beneficial owners of the
Securities represented thereby (or such other accounts as they may direct).
Securities distributed to holders of Preferred Securities other than Book-Entry
Preferred Securities upon the dissolution of the Trust shall not be issued in
the form of a Global Security or any other form intended to facilitate
book-entry trading in beneficial interests in such Securities.

      (f) The Depositary or its nominee, as the registered owner of a Global
Security, shall be the Holder of such Global Security for all purposes under
this Indenture and the Securities, and owners of beneficial interests in a
Global Security shall hold such interests pursuant to the Applicable Depository
Procedures. Accordingly, any such owner's beneficial interest in a Global
Security shall be shown only on, and the transfer of such interest shall be
effected only through, records maintained by the Depositary or its nominee or
its Depositary Participants. The Securities Registrar and the Trustee shall be
entitled to deal with the Depositary for all purposes of this Indenture relating
to a Global Security (including the payment of principal and interest thereon
and the giving of instructions or directions by owners of beneficial interests
therein and the giving of notices) as the sole Holder of the Security and shall
have no obligations to the owners of beneficial interests therein. Neither the
Trustee nor the Securities Registrar shall have any liability in respect of any
transfers effected by the Depositary.

                                       29
<PAGE>

      (g) The rights of owners of beneficial interests in a Global Security
shall be exercised only through the Depositary and shall be limited to those
established by law and agreements between such owners and the Depositary and/or
its Depositary Participants.

      (h) No holder of any beneficial interest in any Global Security held on
its behalf by a Depositary shall have any rights under this Indenture with
respect to such Global Security, and such Depositary may be treated by the
Company, the Trustee and any agent of the Company or the Trustee as the owner of
such Global Security for all purposes whatsoever. None of the Company, the
Trustee nor any agent of the Company or the Trustee will have any responsibility
or liability for any aspect of the records relating to or payments made on
account of beneficial ownership interests of a Global Security or maintaining,
supervising or reviewing any records relating to such beneficial ownership
interests. Notwithstanding the foregoing, nothing herein shall prevent the
Company, the Trustee or any agent of the Company or the Trustee from giving
effect to any written certification, proxy or other authorization furnished by a
Depositary or impair, as between a Depositary and such holders of beneficial
interests, the operation of customary practices governing the exercise of the
rights of the Depositary (or its nominee) as Holder of any Security.

      SECTION 3.5. Registration, Transfer and Exchange Generally.

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

      (b) Upon surrender for registration of transfer of any Security at the
offices or agencies of the Company designated for that purpose the Company shall
execute, and the Trustee shall authenticate and deliver, in the name of the
designated transferee or transferees, one or more new Securities of any
authorized denominations of the same series and of like tenor and aggregate
principal amount.

      (c) At the option of the Holder, Securities may be exchanged for other
Securities of any authorized denominations, of the same series and of like tenor
and aggregate principal amount, upon surrender of the Securities to be exchanged
at such office or agency. Whenever any Securities are so surrendered for
exchange, the Company shall execute, and the Trustee shall authenticate and
deliver, the Securities that the Holder making the exchange is entitled to
receive.

      (d) All Securities issued upon any transfer or exchange of Securities
shall be the valid obligations of the Company, evidencing the same debt, and
entitled to the same benefits under this Indenture, as the Securities
surrendered upon such transfer or exchange.

      (e) Every Security presented or surrendered for transfer or exchange shall
(if so required by the Company or the Trustee) be duly endorsed, or be
accompanied by a written

                                       30
<PAGE>

instrument of transfer in form satisfactory to the Company and the Securities
Registrar, duly executed by the Holder thereof or such Holder's attorney duly
authorized in writing.

      (f) No service charge shall be made to a Holder for any transfer or
exchange of Securities, but the Company and the Trustee may require payment of a
sum sufficient to cover any tax or other governmental charge that may be imposed
in connection with any transfer or exchange of Securities.

      (g) Neither the Company nor the Trustee shall be required pursuant to the
provisions of this Section 3.5, (i) to issue, register the transfer of or
exchange any Security during a period beginning at the opening of business
fifteen (15) days before the day of selection for redemption of Securities
pursuant to Article XI 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
Security so selected for redemption in whole or in part, except, in the case of
any such Security to be redeemed in part, any portion thereof not to be
redeemed.

      (h) The Company shall designate an office or offices or agency or agencies
where Securities may be surrendered for registration or transfer or exchange.
The Company initially designates the Corporate Trust Office as its office and
agency for such purposes. The Company shall give prompt written notice to the
Trustee and to the Holders of any change in the location of any such office or
agency.

      SECTION 3.6. Mutilated, Destroyed, Lost and Stolen Securities.

      (a) If any mutilated Security is surrendered to the Trustee together with
such security or indemnity as may be required by the Company or the Trustee to
save each of them harmless, the Company shall execute and the Trustee shall
authenticate and deliver in exchange therefor a new Security of the same series
and of like tenor and aggregate principal amount and bearing a number not
contemporaneously outstanding.

      (b) If there shall be delivered to the Company and to the Trustee (i)
evidence to their satisfaction of the destruction, loss or theft of any Security
and (ii) such security or indemnity as may be required by them to save each of
them harmless, then, in the absence of notice to the Company or the Trustee that
such Security has been acquired by a bona fide purchaser, the Company shall
execute and upon its written request the Trustee shall authenticate and deliver,
in lieu of any such destroyed, lost or stolen Security, a new Security of the
same series and of like tenor and aggregate principal amount as such destroyed,
lost or stolen Security, and bearing a number not contemporaneously outstanding.

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

      (d) Upon the issuance of any new Security under this Section 3.6, the
Company may require the payment of a sum sufficient to cover any tax or other
governmental charge that may be imposed in relation thereto and any other
expenses (including the fees and expenses of the Trustee) connected therewith.

                                       31
<PAGE>

      (e) Every new Security issued pursuant to this Section 3.6 in lieu of any
mutilated, destroyed, lost or stolen Security shall constitute an original
additional contractual obligation of the Company, whether or not the mutilated,
destroyed, lost or stolen Security shall be at any time enforceable by anyone,
and shall be entitled to all the benefits of this Indenture equally and
proportionately with any and all other Securities duly issued hereunder.

      (f) The provisions of this Section 3.6 are exclusive and shall preclude
(to the extent lawful) all other rights and remedies with respect to the
replacement or payment of mutilated, destroyed, lost or stolen Securities.

      SECTION 3.7. Persons Deemed Owners.

      The Company, the Trustee and any agent of the Company or the Trustee shall
treat the Person in whose name any Security is registered as the owner of such
Security for the purpose of receiving payment of principal of and any interest
on such Security and for all other purposes whatsoever, and neither the Company,
the Trustee nor any agent of the Company or the Trustee shall be affected by
notice to the contrary.

      SECTION 3.8. Cancellation.

      All Securities surrendered for payment, redemption, transfer or exchange
shall, if surrendered to any Person other than the Trustee, be delivered to the
Trustee, and any such Securities and Securities surrendered directly to the
Trustee for any such purpose shall be promptly canceled by it. The Company may
at any time deliver to the Trustee for cancellation any Securities previously
authenticated and delivered hereunder that the Company may have acquired in any
manner whatsoever, and all Securities so delivered shall be promptly canceled by
the Trustee. No Securities shall be authenticated in lieu of or in exchange for
any Securities canceled as provided in this Section 3.8, except as expressly
permitted by this Indenture. All canceled Securities shall be disposed of by the
Trustee in accordance with its customary practices and the Trustee shall deliver
to the Company a certificate of such disposition.

      SECTION 3.9. Deferrals of Interest Payment Dates.

      (a) So long as no Event of Default pursuant to Sections 5.1(c), (e) or (f)
has occurred and is continuing, the Company shall have the right, at any time
and from time to time during the term of the applicable Security, to defer the
payment of interest on such Securities for a period of up to twenty (20)
consecutive quarterly interest payment periods (each such period, an "Extension
Period"), during which Extension Period(s), the Company shall have the right to
make no payments or partial payments of interest on any Interest Payment Date
(except any Additional Tax Sums that otherwise may be due and payable). No
Extension Period shall end on a date other than an Interest Payment Date and no
Extension Period shall extend beyond the Stated Maturity of the principal of the
applicable Securities. No interest 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

                                       32
<PAGE>

payment thereof have been made available for payment. At the end of any such
Extension Period, the Company shall pay all interest then accrued and unpaid on
such Securities together with such Additional Interest. Prior to the termination
of any such Extension Period, the Company may extend such Extension Period and
further defer the payment of interest; provided, that (i) all such previous and
further extensions comprising such Extension Period do not exceed twenty (20)
quarterly interest payment periods, (ii) no Extension Period shall end on a date
other than an Interest Payment Date and (iii) no Extension Period shall extend
beyond the Stated Maturity of the principal of the applicable Securities. Upon
the termination of any such Extension Period and upon the payment of all accrued
and unpaid interest and any Additional Interest then due on any Interest Payment
Date, the Company may elect to begin a new Extension Period; provided, that (i)
such Extension Period does not exceed twenty (20) quarterly interest payment
periods, (ii) no Extension Period shall end on a date other than an Interest
Payment Date and (iii) no Extension Period shall extend beyond the Stated
Maturity of the principal of the applicable Securities. The Company shall give
(i) the Holders of the applicable Securities, (ii) the Trustee, (iii) the
Property Trustee and (iv) any beneficial owner of the Preferred Securities of
the corresponding series reasonably identified to the Company (which
identification may be made either by such beneficial owner or by the Placement
Agent or the Purchaser) written notice of its election to begin any such
Extension Period at least five (5) Business Days prior to the next succeeding
Interest Payment Date on which interest on such Securities would be payable but
for such deferral.

      (b) In connection with any such Extension Period, the Company shall be
subject to the restrictions set forth in Section 10.6(a).

      SECTION 3.10. Right of Set-Off.

      Notwithstanding anything to the contrary herein, the Company shall have
the right to set off any payment it is otherwise required to make in respect of
any Security to the extent the Company has theretofore made, or is concurrently
on the date of such payment making, a payment under the Guarantee Agreement
relating to such Security or to a holder of Preferred Securities of the
corresponding series pursuant to an action undertaken under Section 5.8 of this
Indenture.

      SECTION 3.11. Agreed Tax Treatment.

      Each Security issued hereunder shall provide that the Company and, by its
acceptance or acquisition of a Security or a beneficial interest therein, the
Holder of, and any Person that acquires a direct or indirect beneficial interest
in, such Security, intend and agree to treat such Security as indebtedness of
the Company for United States Federal, state and local tax purposes and to treat
the Preferred Securities (including but not limited to all payments and proceeds
with respect to the Preferred Securities) as an undivided beneficial ownership
interest in the Securities (and payments and proceeds therefrom, respectively)
for United States Federal, state and local tax purposes. The provisions of this
Indenture shall be interpreted to further this intention and agreement of the
parties.

                                       33
<PAGE>

      SECTION 3.12. CUSIP Numbers.

      The Company in issuing the Securities may use "CUSIP" numbers (if then
generally in use), and, if so, the Trustee shall use "CUSIP" numbers in notices
of redemption and other similar or related materials as a convenience to
Holders; provided, that any such notice or other materials may state that no
representation is made as to the correctness of such numbers either as printed
on the Securities or as contained in any notice of redemption or other materials
and that reliance may be placed only on the other identification numbers printed
on the Securities, and any such redemption shall not be affected by any defect
in or omission of such numbers.

                                   ARTICLE IV

                           Satisfaction and Discharge

      SECTION 4.1. Satisfaction and Discharge of Indenture.

      This Indenture shall, upon Company Request, cease to be of further effect
(except as to any surviving rights of registration of transfer or exchange of
Securities herein expressly provided for and as otherwise provided in this
Section 4.1) and the Trustee, on demand of and at the expense of the Company,
shall execute proper instruments acknowledging satisfaction and discharge of
this Indenture, when

      (a) either

            (i) all Securities theretofore authenticated and delivered (other
      than (A) Securities that have been mutilated, destroyed, lost or stolen
      and that have been replaced or paid as provided in Section 3.6 and (B)
      Securities for whose payment money has theretofore been deposited in trust
      or segregated and held in trust by the Company and thereafter repaid to
      the Company or discharged from such trust as provided in Section 10.2)
      have been delivered to the Trustee for cancellation; or

            (ii) all such Securities not theretofore delivered to the Trustee
      for cancellation

                  (A) have become due and payable, or

                  (B)   will become due and payable at their Stated Maturity
                        within one year of the date of deposit, or

                  (C)   are to be called for redemption within one year under
                        arrangements satisfactory to the Trustee for the giving
                        of notice of redemption by the Trustee in the name, and
                        at the expense, of the Company,

      and the Company, in the case of subclause (ii)(A), (B) or (C) above, has
      deposited or caused to be deposited with the Trustee as trust funds in
      trust for such purpose (x) an amount in the currency or currencies in
      which the Securities are payable, (y) Government Obligations which through
      the scheduled payment of principal and interest in respect thereof in
      accordance with their terms will provide, not later than the due date of
      any

                                       34
<PAGE>

      payment, money in an amount or (z) a combination thereof, in each case
      sufficient, in the opinion of a nationally recognized firm of independent
      public accountants expressed in a written certification thereof delivered
      to the Trustee, to pay and discharge the entire indebtedness on such
      Securities not theretofore delivered to the Trustee for cancellation, for
      principal and any premium and interest (including any Additional Interest)
      to the date of such deposit (in the case of Securities that have become
      due and payable) or to the Stated Maturity (or any date of principal
      repayment upon early maturity) or Redemption Date, as the case may be;

      (b) the Company has paid or caused to be paid all other sums payable
hereunder by the Company; and

      (c) the Company has delivered to the Trustee an Officers' Certificate and
an Opinion of Counsel each stating that all conditions precedent herein provided
for relating to the satisfaction and discharge of this Indenture have been
complied with.

Notwithstanding the satisfaction and discharge of this Indenture, the
obligations of the Company to the Trustee under Section 6.6, the obligations of
the Company to any Authenticating Agent under Section 6.11 and, if money shall
have been deposited with the Trustee pursuant to subclause (a)(ii) of this
Section 4.1, the obligations of the Trustee under Section 4.2 and Section
10.2(e) shall survive.

      SECTION 4.2. Application of Trust Money.

      Subject to the provisions of Section 10.2(e), all money deposited with the
Trustee pursuant to Section 4.1 shall be held in trust and applied by the
Trustee, in accordance with the provisions of the Securities and this Indenture,
to the payment in accordance with Section 3.1, either directly or through any
Paying Agent (including the Company acting as its own Paying Agent) as the
Trustee may determine, to the Persons entitled thereto, of the principal and any
premium and interest (including any Additional Interest) for the payment of
which such money or obligations have been deposited with or received by the
Trustee. Moneys held by the Trustee under this Section 4.2 shall not be subject
to the claims of holders of Senior Debt under Article XII.

                                   ARTICLE V

                                    Remedies

      SECTION 5.1. Events of Default.

      "Event of Default" means, wherever used herein with respect to the
Securities of a given series, any one of the following events (whatever the
reason for such Event of Default 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):

                                       35
<PAGE>

      (a) default in the payment of any interest upon any Security of that
series, including any Additional Interest in respect thereof, when it becomes
due and payable, and continuance of such default for a period of thirty (30)
days (subject to the deferral of any due date in the case of an Extension
Period); or

      (b) default in the payment of the principal of or any premium on any
Security of that series at its Maturity; or

      (c) default in the payment of any interest upon any Security of that
series, including any Additional Interest in respect thereof, following the
nonpayment of any such interest for twenty (20) or more consecutive quarterly
interest payment periods; or

      (d) default in the performance, or breach, of any covenant or warranty of
the Company in this Indenture and continuance of such default or breach for a
period of thirty (30) days after there has been given, by registered or
certified mail, to the Company by the Trustee or to the Company and the Trustee
by the Holders of at least twenty five percent (25%) in aggregate principal
amount of the Outstanding Securities of that series 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 entry by a court having jurisdiction in the premises of a decree
or order adjudging the Company a bankrupt or insolvent, or approving as properly
filed a petition seeking reorganization, arrangement, adjustment or composition
of or in respect of the Company under any applicable Federal or state
bankruptcy, insolvency, reorganization or other similar law, or appointing a
custodian, receiver, liquidator, assignee, trustee, sequestrator or other
similar official of the Company or of any substantial part of its property, or
ordering the winding up or liquidation of its affairs, and the continuance of
any such decree or order for relief or any such other decree or order unstayed
and in effect for a period of sixty (60) consecutive days; or

      (f) the institution by the Company of proceedings to be adjudicated a
bankrupt or insolvent, or the consent by the Company to the institution of
bankruptcy or insolvency proceedings against it, or the filing by the Company 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 such petition or to the
appointment of or taking possession by a custodian, receiver, liquidator,
assignee, trustee, sequestrator or other similar official of the Company 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 the Company in
furtherance of any such action; or

      (g) the Trust shall have voluntarily or involuntarily liquidated,
dissolved, wound-up its business or otherwise terminated its existence, except
in connection with (1) the distribution of the Securities to holders of the
Preferred Securities in liquidation of their interests in the Trust, (2) the
redemption of all of the outstanding Preferred Securities or (3) certain
mergers, consolidations or amalgamations, each as and to the extent permitted by
the Trust Agreement.

                                       36
<PAGE>

      SECTION 5.2. Acceleration of Maturity; Rescission and Annulment.

      (a) If an Event of Default pursuant to Sections 5.1(c), (e) or (f) occurs
and is continuing, then and in every such case the Trustee or the Holders of not
less than twenty five percent (25%) in principal amount of the Outstanding
Securities of a given series may declare the principal amount of all the
Securities of that Series to be due and payable immediately, by a notice in
writing to the Company (and to the Trustee if given by Holders), provided, that
if, upon an Event of Default pursuant to Sections 5.1(c), (e) or (f), the
Trustee or the Holders of not less than twenty five percent (25%) in principal
amount of the Outstanding Securities of that series fail to declare the
principal of all such Outstanding Securities to be immediately due and payable,
the holders of at least twenty five percent (25%) in aggregate Liquidation
Amount (as defined in the Trust Agreement) 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 Company and the
Trustee; and upon any such declaration the principal amount of and the accrued
interest (including any Additional Interest) on all the Securities of that
series shall become immediately due and payable.

      (b) At any time after such a declaration of acceleration with respect to
Securities of a given series has been made and before a judgment or decree for
payment of the money due has been obtained by the Trustee as hereinafter
provided in this Article V, the Holders of a majority in principal amount of the
Outstanding Securities of that series, by written notice to the Indenture
Trustee, or the Holders of a majority in aggregate liquidation amount of the
Preferred Securities of the corresponding series, by written notice to the
Property Trustee, the Company and the Trustee, may rescind and annul such
declaration and its consequences if:

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

                  (A)   all overdue installments of interest on all Securities
                        of that Series,

                  (B)   any accrued Additional Interest on all Securities of
                        that Series,

                  (C)   the principal of and any premium on any Securities of
                        that Series that have become due otherwise than by such
                        declaration of acceleration and interest (including any
                        Additional Interest) thereon at the rate borne by such
                        Securities, and

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

            (ii) all Events of Default with respect to Securities of that
      series, other than the non-payment of the principal of Securities that has
      become due solely by such acceleration, have been cured or waived as
      provided in Section 5.13;

                                       37
<PAGE>

provided, that if the Holders of such Securities fail to annul such declaration
and waive such default, the holders of not less than a majority in aggregate
Liquidation Amount (as defined in the Trust Agreement) of the Preferred
Securities of the corresponding series then outstanding shall also have the
right to rescind and annul such declaration and its consequences by written
notice to the Property Trustee, the Company and the Trustee, subject to the
satisfaction of the conditions set forth in paragraph (b) of this Section 5.2.
No such rescission shall affect any subsequent default or impair any right
consequent thereon.

      SECTION 5.3. Collection of Indebtedness and Suits for Enforcement by
Trustee.

      (a) The Company covenants that if:

            (i) default is made in the payment of any installment of interest
      (including any Additional Interest) on any Security of a given series when
      such interest becomes due and payable and such default continues for a
      period of thirty (30) days, or

            (ii) default is made in the payment of the principal of and any
      premium on any such Security at the Maturity thereof,

the Company will, upon demand of the Trustee, pay to the Trustee, for the
benefit of the Holders of such Securities, the whole amount then due and payable
on such Securities for principal and any premium and interest (including any
Additional Interest) and, in addition thereto, all amounts owing the Trustee
under Section 6.6.

      (b) If the Company fails to pay such amounts forthwith upon such demand,
the Trustee, in its own name and as trustee of an express trust, may institute a
judicial proceeding for the collection of the sums so due and unpaid, and may
prosecute such proceeding to judgment or final decree, and may enforce the same
against the Company or any other obligor upon such Securities and collect the
moneys adjudged or decreed to be payable in the manner provided by law out of
the property of the Company or any other obligor upon the Securities, wherever
situated.

      (c) If an Event of Default with respect to Securities occurs and is
continuing, the Trustee may in its discretion proceed to protect and enforce its
rights and the rights of the Holders of Securities by such appropriate judicial
proceedings as the Trustee shall deem most effectual to protect and enforce any
such rights, whether for the specific enforcement of any covenant or agreement
in this Indenture or in aid of the exercise of any power granted herein, or to
enforce any other proper remedy.

      SECTION 5.4. Trustee May File Proofs of Claim.

      In case of any receivership, insolvency, liquidation, bankruptcy,
reorganization, arrangement, adjustment, composition or similar judicial
proceeding relative to the Company (or any other obligor upon the Securities),
its property or its creditors, the Trustee shall be entitled and empowered, by
intervention in such proceeding or otherwise, to take any and all actions
authorized hereunder in order to have claims of the Holders and the Trustee
allowed in any such proceeding. In particular, the Trustee shall be authorized
to collect and receive any moneys or

                                       38
<PAGE>

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 judicial proceeding is hereby authorized
by each Holder to make such payments to the Trustee and, in the event that the
Trustee shall consent to the making of such payments directly to the Holders, to
first pay to the Trustee any amount due it for the reasonable compensation,
expenses, disbursements and advances of the Trustee, its agents and counsel, and
any other amounts owing the Trustee, any predecessor Trustee and other Persons
under Section 6.6.

      SECTION 5.5. Trustee May Enforce Claim Without Possession of Securities.

      All rights of action and claims under this Indenture or the Securities may
be prosecuted and enforced by the Trustee without the possession of any of the
Securities or the production thereof in any proceeding relating thereto, and any
such proceeding instituted by the Trustee shall be brought in its own name as
trustee of an express trust, and any recovery of judgment shall, subject to
Article XII and after provision for the payment of all the amounts owing the
Trustee, any predecessor Trustee and other Persons under Section 6.6, be for the
ratable benefit of the Holders of the Securities in respect of which such
judgment has been recovered.

      SECTION 5.6. Application of Money Collected.

      Any money or property collected or to be applied by the Trustee with
respect to the Securities pursuant to this Article V shall be applied in the
following order, at the date or dates fixed by the Trustee and, in case of the
distribution of such money or property on account of principal or any premium or
interest (including any Additional Interest), upon presentation of the
Securities and the notation thereon of the payment if only partially paid and
upon surrender thereof if fully paid:

      FIRST: To the payment of all amounts due the Trustee, any predecessor
Trustee and other Persons under Section 6.6;

      SECOND: To the payment of all Senior Debt of the Company if and to the
extent required by Article XII.

      THIRD: Subject to Article XII, to the payment of the amounts then due and
unpaid upon the Securities for principal and any premium and interest (including
any Additional Interest) in respect of which or for the benefit of which such
money has been collected, ratably, without preference or priority of any kind,
according to the amounts due and payable on the Securities for principal and any
premium and interest (including any Additional Interest), respectively; and

      FOURTH: The balance, if any, to the Person or Persons entitled thereto.

      SECTION 5.7. Limitation on Suits.

      Subject to Section 5.8, no Holder of any Securities shall have any right
to institute any proceeding, judicial or otherwise, with respect to this
Indenture or for the appointment of a custodian, receiver, assignee, trustee,
liquidator, sequestrator (or other similar official) or for any other remedy
hereunder, unless:

                                       39
<PAGE>

      (a) such Holder has previously given written notice to the Trustee of a
continuing Event of Default with respect to the Securities of a given series;

      (b) the Holders of not less than a majority in aggregate principal amount
of the Outstanding Securities of that series shall have made written request to
the Trustee to institute proceedings in respect of such Event of Default in its
own name as Trustee hereunder;

      (c) such Holder or Holders have offered to the Trustee reasonable
indemnity against the costs, expenses and liabilities to be incurred in
compliance with such request;

      (d) the Trustee after its receipt of such notice, request and offer of
indemnity has failed to institute any such proceeding for sixty (60) days; and

      (e) no direction inconsistent with such written request has been given to
the Trustee during such sixty (60)-day period by the Holders of a majority in
aggregate principal amount of the Outstanding Securities of the applicable
series;

it being understood and intended that no one or more of such Holders shall have
any right in any manner whatever by virtue of, or by availing itself of, any
provision of this Indenture to affect, disturb or prejudice the rights of any
other Holders of Securities, or to obtain or to seek to obtain priority or
preference over any other of such Holders or to enforce any right under this
Indenture, except in the manner herein provided and for the equal and ratable
benefit of all such Holders.

      SECTION 5.8. Unconditional Right of Holders to Receive Principal, Premium
and Interest; Direct Action by Holders of Preferred Securities.

      Notwithstanding any other provision in this Indenture, the Holder of any
Security shall have the right, which is absolute and unconditional, to receive
payment of the principal of and any premium on such Security at its Maturity and
payment of interest (including any Additional Interest) on such Security when
due and payable and to institute suit for the enforcement of any such payment,
and such right shall not be impaired without the consent of such Holder. Any
registered holder of Preferred Securities shall have the right, upon the
occurrence of an Event of Default described in Section 5.1(a), Section 5.1(b) or
Section 5.1(c), to institute a suit directly against the Company for enforcement
of payment to such holder of principal of and any premium and interest
(including any Additional Interest) on the Securities of the corresponding
series having a principal amount equal to the aggregate Liquidation Amount (as
defined in the Trust Agreement) of the Preferred Securities held by such holder.

      SECTION 5.9. Restoration of Rights and Remedies.

      If the Trustee, any Holder or any holder of Preferred Securities has
instituted any proceeding to enforce any right or remedy under this Indenture
and such proceeding has been discontinued or abandoned for any reason, or has
been determined adversely to the Trustee, such Holder or such holder of
Preferred Securities, then and in every such case the Company, the Trustee, such
Holders and such holder of Preferred Securities shall, subject to any
determination in such proceeding, be restored severally and respectively to
their former positions hereunder,

                                       40
<PAGE>

and thereafter all rights and remedies of the Trustee, such Holder and such
holder of Preferred Securities shall continue as though no such proceeding had
been instituted.

      SECTION 5.10. Rights and Remedies Cumulative.

      Except as otherwise provided in Section 3.6(f), no right or remedy herein
conferred upon or reserved to the Trustee or the Holders is intended to be
exclusive of any other right or remedy, and every right and remedy shall, to the
extent permitted by law, be cumulative and in addition to every other right and
remedy given hereunder or now or hereafter existing at law or in equity or
otherwise. The assertion or employment of any right or remedy hereunder, or
otherwise, shall not prevent the concurrent assertion or employment of any other
appropriate right or remedy.

      SECTION 5.11. Delay or Omission Not Waiver.

      No delay or omission of the Trustee, any Holder of any Securities or any
holder of any Preferred Security to exercise any right or remedy accruing upon
any Event of Default shall impair any such right or remedy or constitute a
waiver of any such Event of Default or an acquiescence therein. Every right and
remedy given by this Article V or by law to the Trustee or to the Holders and
the right and remedy given to the holders of Preferred Securities by Section 5.8
may be exercised from time to time, and as often as may be deemed expedient, by
the Trustee, the Holders or the holders of Preferred Securities, as the case may
be.

      SECTION 5.12. Control by Holders.

      The Holders of not less than a majority in aggregate principal amount of
the Outstanding Securities shall have the right to direct the time, method and
place of conducting any proceeding for any remedy available to the Trustee or
exercising any trust or power conferred on the Trustee; provided, that:

      (a) such direction shall not be in conflict with any rule of law or with
this Indenture,

      (b) the Trustee may take any other action deemed proper by the Trustee
that is not inconsistent with such direction, and

      (c) subject to the provisions of Section 6.2, the Trustee shall have the
right to decline to follow such direction if a Responsible Officer or Officers
of the Trustee shall, in good faith, reasonably determine that the proceeding so
directed would be unjustly prejudicial to the Holders not joining in any such
direction or would involve the Trustee in personal liability.

      SECTION 5.13. Waiver of Past Defaults.

      (a) The Holders of not less than a majority in aggregate principal amount
of the Outstanding Securities of a given series and the holders of a majority in
aggregate Liquidation Amount (as defined in the Trust Agreement) of the
Preferred Securities of the corresponding series may waive any past Event of
Default hereunder and its consequences except an Event of Default:

                                       41
<PAGE>

            (i) in the payment of the principal of or any premium or interest
      (including any Additional Interest) on any Security of that series (unless
      such Event of Default has been cured and the Company has paid to or
      deposited with the Trustee a sum sufficient to pay all installments of
      interest (including any Additional Interest) due and past due and all
      principal of and any premium on all such Securities due otherwise than by
      acceleration), or

            (ii) in respect of a covenant or provision hereof that under Article
      IX cannot be modified or amended without the consent of each Holder of any
      Outstanding Security of that series.

      (b) Any such waiver shall be deemed to be on behalf of the Holders of all
the Securities of that series or, in the case of a waiver by holders of
Preferred Securities issued by such Trust, by all holders of Preferred
Securities of the corresponding series.

      (c) Upon any such waiver, 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 Indenture; but no such waiver shall extend to any
subsequent or other Event of Default or impair any right consequent thereon.

      SECTION 5.14. Undertaking for Costs.

      All parties to this Indenture agree, and each Holder of any Security by
his or her acceptance thereof shall be deemed to have agreed, that any court may
in its discretion require, in any suit for the enforcement of any right or
remedy under this Indenture, or in any suit against the Trustee for any action
taken or omitted by it as Trustee, the filing by any party litigant in such suit
of an undertaking to pay the costs of such suit, and that such court may in its
discretion assess reasonable costs, including reasonable attorneys' fees and
expenses, against any party litigant in such suit, having due regard to the
merits and good faith of the claims or defenses made by such party litigant; but
the provisions of this Section 5.14 shall not apply to any suit instituted by
the Trustee, to any suit instituted by any Holder, or group of Holders, holding
in the aggregate more than ten percent (10%) in aggregate principal amount of
the Outstanding Securities of a given series, or to any suit instituted by any
Holder for the enforcement of the payment of the principal of or any premium on
a Security after the Stated Maturity or any interest (including any Additional
Interest) on any Security after it is due and payable.

      SECTION 5.15. Waiver of Usury, Stay or Extension Laws.

      The Company covenants (to the extent that it may lawfully do so) that it
will not at any time insist upon, or plead, or in any manner whatsoever claim or
take the benefit or advantage of, any usury, stay or extension law wherever
enacted, now or at any time hereafter in force, which may affect the covenants
or the performance of this Indenture; and the Company (to the extent that it may
lawfully do so) hereby expressly waives all benefit or advantage of any such
law, and covenants that it will not hinder, delay or impede the execution of any
power herein granted to the Trustee, but will suffer and permit the execution of
every such power as though no such law had been enacted.

                                       42
<PAGE>

                                   ARTICLE VI

                                  The Trustee

      SECTION 6.1. Corporate Trustee Required.

      There shall at all times be a Trustee hereunder with respect to the
Securities. The 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 $50,000,000, subject to supervision or examination by Federal or state
authority and having an office within the United States. If such corporation
publishes reports of condition at least annually, pursuant to law or to the
requirements of such supervising or examining authority, then, for the purposes
of this Section 6.1, the combined capital and surplus of such corporation 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 Trustee shall cease to be
eligible in accordance with the provisions of this Section 6.1, it shall resign
immediately in the manner and with the effect hereinafter specified in this
Article VI.

      SECTION 6.2. Certain Duties and Responsibilities.

      (a) Except during the continuance of an Event of Default:

            (i) the Trustee undertakes to perform such duties and only such
      duties as are specifically set forth in this Indenture, and no implied
      covenants or obligations shall be read into this Indenture against the
      Trustee; and

            (ii) in the absence of bad faith on its part, the Trustee may
      conclusively rely, as to the truth of the statements and the correctness
      of the opinions expressed therein, upon certificates or opinions furnished
      to the Trustee and conforming to the requirements of this Indenture;
      provided, that in the case of any such certificates or opinions that by
      any provision hereof are specifically required to be furnished to the
      Trustee, the Trustee shall be under a duty to examine the same to
      determine whether or not they substantially conform on their face to the
      requirements of this Indenture.

      (b) If an Event of Default known to the Trustee has occurred and is
continuing, the Trustee shall, prior to the receipt of directions, if any, from
the Holders of at least a majority in aggregate principal amount of the
applicable series of Outstanding Securities, exercise such of the rights and
powers vested in it by this 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.

      (c) Notwithstanding the foregoing, no provision of this Indenture shall
require the Trustee 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 rights or powers, if it 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 therein expressly
so provided, every provision of this Indenture relating to the conduct or
affecting the liability of or

                                       43
<PAGE>

affording protection to the Trustee shall be subject to the provisions of this
Section 6.2. To the extent that, at law or in equity, the Trustee has duties and
liabilities relating to the Holders, the Trustee shall not be liable to any
Holder for the Trustee's good faith reliance on the provisions of this
Indenture. The provisions of this Indenture, to the extent that they restrict
the duties and liabilities of the Trustee otherwise existing at law or in
equity, are agreed by the Company and the Holders to replace such other duties
and liabilities of the Trustee.

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

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

            (ii) the 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 aggregate principal
      amount of the Outstanding Securities, acting collectively or, if permitted
      for a given matter, as a separate series, relating to the time, method and
      place of conducting any proceeding for any remedy available to the Trustee
      under this Indenture; and

            (iii) the Trustee shall be under no liability for interest on any
      money received by it hereunder except as otherwise agreed with the Company
      and money held by the Trustee in trust hereunder need not be segregated
      from other funds except to the extent required by law.

      SECTION 6.3. Notice of Defaults.

      Within ninety (90) days after the occurrence of any default actually known
to the Trustee, the Trustee shall give the Holders of the applicable series of
Securities notice of such default 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 on any Securities, the Trustee shall be
fully protected in withholding the 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 Trustee in good faith determines that withholding
the notice is in the interest of the holders of such Securities; and provided,
that in the case of any default of the character specified in Section 5.1(d), no
such notice to Holders shall be given until at least thirty (30) days after the
occurrence thereof. For the purpose of this Section 6.3, the term "default"
means any event which is, or after notice or lapse of time or both would become,
an Event of Default.

      SECTION 6.4. Certain Rights of Trustee.

      Subject to the provisions of Section 6.2:

      (a) the Trustee may conclusively rely and shall be fully protected in
acting or refraining from acting in good faith and in accordance with the terms
hereof upon any resolution,

                                       44
<PAGE>

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

      (c) any request or direction of the Company shall be sufficiently
evidenced by a Company Request or Company Order and any resolution of the Board
of Directors may be sufficiently evidenced by a Board Resolution;

      (d) the Trustee may consult with counsel (which counsel may be counsel to
the Trustee, the Company or any of its Affiliates, and may include any of its
employees) and the advice of such counsel or any Opinion of 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;

      (e) the Trustee shall be under no obligation to exercise any of the rights
or powers vested in it by this Indenture at the request or direction of any of
the Holders pursuant to this Indenture, unless such Holders shall have offered
to the Trustee security or indemnity reasonably satisfactory to it 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 Trustee;

      (f) the 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, bond, indenture,
note or other paper or document, but the Trustee in its discretion may make such
inquiry or investigation into such facts or matters as it may see fit, and, if
the Trustee shall determine to make such inquiry or investigation, it shall be
entitled to examine the books, records and premises of the Company, personally
or by agent or attorney;

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

                                       45
<PAGE>

      (h) whenever in the administration of this Indenture the Trustee shall
deem it desirable to receive instructions with respect to enforcing any remedy
or right or taking any other action with respect to enforcing any remedy or
right hereunder, the Trustees (i) may request instructions from the Holders
(which instructions may only be given by the Holders of the same series and
aggregate principal amount of Outstanding Securities as would be entitled to
direct the Trustee under this Indenture in respect of such remedy, right or
action), (ii) may refrain from enforcing such remedy or right or taking such
action until such instructions are received and (iii) shall be protected in
acting in accordance with such instructions;

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

      (j) without prejudice to any other rights available to the Trustee under
applicable law, when the Trustee incurs expenses or renders services in
connection with any bankruptcy, insolvency or other proceeding referred to in
clauses (d) or (e) of the definition of Event of Default, 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 laws or law relating to creditors rights
generally;

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

      (l) the Trustee shall not be charged with knowledge of any Event of
Default unless either (i) a Responsible Officer of the Trustee shall have actual
knowledge or (ii) the Trustee shall have received notice thereof from the
Company or a Holder; and

      (m) in the event that the Trustee is also acting as Paying Agent,
Authenticating Agent or Securities Registrar hereunder, the rights and
protections afforded to the Trustee pursuant to this Article VI shall also be
afforded such Paying Agent, Authenticating Agent, or Securities Registrar.

      SECTION 6.5. May Hold Securities.

      The Trustee, any Authenticating Agent, any Paying Agent, any Securities
Registrar or any other agent of the Company, in its individual or any other
capacity, may become the owner or pledgee of Securities and may otherwise deal
with the Company with the same rights it would have if it were not Trustee,
Authenticating Agent, Paying Agent, Securities Registrar or such other agent.

      SECTION 6.6. Compensation; Reimbursement; Indemnity.

      (a) The Company agrees

                                       46
<PAGE>

            (i) to pay to the Trustee from time to time reasonable compensation
      for all services rendered by it hereunder in such amounts as the Company
      and the Trustee shall agree 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);

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

            (iii) to the fullest extent permitted by applicable law, to
      indemnify the Trustee and its Affiliates, and their officers, directors,
      shareholders, agents, representatives and employees for, and to hold them
      harmless against, any loss, damage, action, suit, liability, tax (other
      than income, franchise or other taxes imposed on amounts paid pursuant to
      (i) or (ii) hereof), penalty, expense 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 this trust or the performance of the Trustee's duties
      hereunder, including the 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.

      (b) To secure the Company's payment obligations in this Section 6.6, the
Trustee shall have a lien prior to the Securities on all money or property held
or collected by the Trustee. Such lien shall survive the satisfaction and
discharge of this Indenture or the resignation or removal of the Trustee.

      (c) The obligations of the Company under this Section 6.6 shall survive
the satisfaction and discharge of this Indenture and the earlier resignation or
removal of the Trustee.

      (d) In no event shall the 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.

      (e) In no event shall the 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 Indenture.

      SECTION 6.7. Resignation and Removal; Appointment of Successor.

      (a) No resignation or removal of the Trustee and no appointment of a
successor Trustee pursuant to this Article VI shall become effective until the
acceptance of appointment by the successor Trustee under Section 6.8.

                                       47
<PAGE>

      (b) The Trustee may resign at any time by giving written notice thereof to
the Company.

      (c) Unless an Event of Default shall have occurred and be continuing, the
Trustee may be removed at any time by the Company by a Board Resolution. If an
Event of Default shall have occurred and be continuing, the Trustee may be
removed by Act of the Holders of a majority in aggregate principal amount of the
Outstanding Securities, delivered to the Trustee and to the Company.

      (d) If the Trustee shall resign, be removed or become incapable of acting,
or if a vacancy shall occur in the office of Trustee for any reason, at a time
when no Event of Default shall have occurred and be continuing, the Company, by
a Board Resolution, shall promptly appoint a successor Trustee, and such
successor Trustee and the retiring Trustee shall comply with the applicable
requirements of Section 6.8. If the Trustee shall resign, be removed or become
incapable of acting, or if a vacancy shall occur in the office of Trustee for
any reason, at a time when an Event of Default shall have occurred and be
continuing, the Holders, by Act of the Holders of a majority in aggregate
principal amount of the Outstanding Securities, shall promptly appoint a
successor Trustee, and such successor Trustee and the retiring Trustee shall
comply with the applicable requirements of Section 6.8. If no successor Trustee
shall have been so appointed by the Company or the Holders and accepted
appointment within sixty (60) days after the giving of a notice of resignation
by the Trustee or the removal of the Trustee in the manner required by Section
6.8, any Holder who has been a bona fide Holder of a Security for at least six
months may, on behalf of such Holder and all others similarly situated, and any
resigning Trustee may, at the expense of the Company, petition any court of
competent jurisdiction for the appointment of a successor Trustee.

      (e) The Company shall give notice to all Holders in the manner provided in
Section 1.6 of each resignation and each removal of the Trustee and each
appointment of a successor Trustee. Each notice shall include the name of the
successor Trustee and the address of its Corporate Trust Office.

      SECTION 6.8. Acceptance of Appointment by Successor.

      (a) In case of the appointment hereunder of a successor Trustee, each
successor Trustee so appointed shall execute, acknowledge and deliver to the
Company and to the retiring Trustee an instrument accepting such appointment,
and thereupon the resignation or removal of the retiring Trustee shall become
effective and 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 the request of the Company or the successor
Trustee, such retiring Trustee shall, upon payment of its charges, execute and
deliver an instrument transferring to such successor Trustee all the rights,
powers and trusts of the retiring Trustee and shall duly assign, transfer and
deliver to such successor Trustee all property and money held by such retiring
Trustee hereunder.

      (b) Upon request of any such successor Trustee, the Company shall execute
any and all instruments for more fully and certainly vesting in and confirming
to such successor Trustee all rights, powers and trusts referred to in paragraph
(a) of this Section 6.8.

                                       48
<PAGE>

      (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 VI.

      SECTION 6.9. Merger, Conversion, Consolidation or Succession to Business.

      Any Person into which the 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 the Trustee shall be a party, or any Person succeeding to
all or substantially all of the corporate trust business of the Trustee, shall
be the successor of the 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
VI. In case any Securities shall have been authenticated, but not delivered, by
the Trustee then in office, any successor by merger, conversion or consolidation
or as otherwise provided above in this Section 6.9 to such authenticating
Trustee may adopt such authentication and deliver the Securities so
authenticated, and in case any Securities shall not have been authenticated, any
successor to the Trustee may authenticate such Securities either in the name of
any predecessor Trustee or in the name of such successor Trustee, and in all
cases the certificate of authentication shall have the full force which it is
provided anywhere in the Securities or in this Indenture that the certificate of
the Trustee shall have.

      SECTION 6.10. Not Responsible for Recitals or Issuance of Securities.

      The recitals contained herein and in the Securities, except the Trustee's
certificates of authentication, shall be taken as the statements of the Company,
and neither the Trustee nor any Authenticating Agent assumes any responsibility
for their correctness. The Trustee makes no representations as to the validity
or sufficiency of this Indenture or of the Securities. Neither the Trustee nor
any Authenticating Agent shall be accountable for the use or application by the
Company of the Securities or the proceeds thereof.

      SECTION 6.11. Appointment of Authenticating Agent.

      (a) The Trustee may appoint an Authenticating Agent or Agents with respect
to the Securities, which shall be authorized to act on behalf of the Trustee to
authenticate Securities issued upon original issue and upon exchange,
registration of transfer or partial redemption thereof or pursuant to Section
3.6, and Securities so authenticated shall be entitled to the benefits of this
Indenture and shall be valid and obligatory for all purposes as if authenticated
by the Trustee hereunder. Wherever reference is made in this Indenture to the
authentication and delivery of Securities by the Trustee or the Trustee's
certificate of authentication, such reference shall be deemed to include
authentication and delivery on behalf of the Trustee by an Authenticating Agent.
Each Authenticating Agent shall be acceptable to the Company and shall at all
times be a corporation organized and doing business under the laws of the United
States of America, or of any State or Territory thereof or the District of
Columbia, authorized under such laws to act as Authenticating Agent, having a
combined capital and surplus of not less than $50,000,000 and subject to
supervision or examination by Federal or state authority. If such Authenticating
Agent publishes reports of condition at least annually pursuant to law or to the
requirements of said supervising or examining authority, then for the purposes
of this Section 6.11 the combined capital and surplus of such Authenticating
Agent shall be deemed to be its

                                       49
<PAGE>

combined capital and surplus as set forth in its most recent report of condition
so published. If at any time an Authenticating Agent shall cease to be eligible
in accordance with the provisions of this Section 6.11, such Authenticating
Agent shall resign immediately in the manner and with the effect specified in
this Section 6.11.

      (b) Any Person into which an Authenticating Agent 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 Authenticating Agent shall be
a party, or any Person succeeding to all or substantially all of the corporate
trust business of an Authenticating Agent shall be the successor Authenticating
Agent hereunder, provided such Person shall be otherwise eligible under this
Section 6.11, without the execution or filing of any paper or any further act on
the part of the Trustee or the Authenticating Agent.

      (c) An Authenticating Agent may resign at any time by giving written
notice thereof to the Trustee and to the Company. The Trustee may at any time
terminate the agency of an Authenticating Agent by giving written notice thereof
to such Authenticating Agent and to the Company. Upon receiving such a notice of
resignation or upon such a termination, or in case at any time such
Authenticating Agent shall cease to be eligible in accordance with the
provisions of this Section 6.11, the Trustee may appoint a successor
Authenticating Agent eligible under the provisions of this Section 6.11, which
shall be acceptable to the Company, and shall give notice of such appointment to
all Holders. Any successor Authenticating Agent upon acceptance of its
appointment hereunder shall become vested with all the rights, powers and duties
of its predecessor hereunder, with like effect as if originally named as an
Authenticating Agent.

      (d) The Company agrees to pay to each Authenticating Agent from time to
time reasonable compensation for its services under this Section 6.11 in such
amounts as the Company and the Authenticating Agent shall agree from time to
time.

      (e) If an appointment of an Authenticating Agent is made pursuant to this
Section 6.11, the Securities may have endorsed thereon, in addition to the
Trustee's certificate of authentication, an alternative certificate of
authentication in the following form:

This is one of the Securities designated therein referred to in the within
mentioned Indenture.

Dated:

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

                                      __________________________________________
                                      Authenticating Agent

                                      By: ______________________________________
                                           Authorized Officer

                                       50
<PAGE>

                                  ARTICLE VII

               Holder's Lists and Reports by Trustee and Company

      SECTION 7.1. Company to Furnish Trustee Names and Addresses of Holders.

      The Company will furnish or cause to be furnished to the Trustee:

      (a) semi-annually, on or before June 30 and December 31 of each year, a
list, in such form as the Trustee may reasonably require, of the names and
addresses of the Holders as of a date not more than fifteen (15) days prior to
the delivery thereof, and

      (b) at such other times as the Trustee may request in writing, within
thirty (30) days after the receipt by the Company of any such request, a list of
similar form and content as of a date not more than fifteen (15) days prior to
the time such list is furnished, in each case to the extent such information is
in the possession or control of the Company and has not otherwise been received
by the Trustee in its capacity as Securities Registrar.

      SECTION 7.2. Preservation of Information, Communications to Holders.

      (a) The Trustee shall preserve, in as current a form as is reasonably
practicable, the names and addresses of Holders contained in the most recent
list furnished to the Trustee as provided in Section 7.1 and the names and
addresses of Holders received by the Trustee in its capacity as Securities
Registrar. The Trustee may destroy any list furnished to it as provided in
Section 7.1 upon receipt of a new list so furnished.

      (b) The rights of Holders to communicate with other Holders with respect
to their rights under this Indenture or under the Securities, and the
corresponding rights and privileges of the Trustee, shall be as provided in the
Trust Indenture Act.

      (c) Every Holder of Securities, by receiving and holding the same, agrees
with the Company and the Trustee that neither the Company nor the Trustee nor
any agent of either of them shall be held accountable by reason of the
disclosure of information as to the names and addresses of the Holders made
pursuant to the Trust Indenture Act.

      SECTION 7.3. Reports by Company and Trustee.

      (a) The Company shall furnish to the Holders and to prospective purchasers
of Securities, upon their request, the information required to be furnished
pursuant to Rule 144A(d)(4) under the Securities Act. The Company shall furnish
to the Trustee and, so long as the Property Trustee holds any of the Securities,
the Company shall furnish to the Property Trustee, reports on Form FR Y-9C
promptly following their filing with the Federal Reserve.

      (b) The Company shall furnish to (i) the Holders and to subsequent holders
of Securities, (ii) the Purchaser, (iii) any beneficial owner of the Securities
reasonably identified to the Company (which identification may be made either by
such beneficial owner or by the

                                       51
<PAGE>

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

      (c) The Trustee shall receive all reports, certificates and information
which it is entitled to receive under each of the Operative Documents (as
defined in the Trust Agreement), 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 VIII

              Consolidation, Merger, Conveyance, Transfer or Lease

      SECTION 8.1. Company May Consolidate, Etc., Only on Certain Terms.

      The Company shall not consolidate with or merge into any other Person or
convey, transfer or lease its properties and assets substantially as an entirety
to any Person, and no Person shall consolidate with or merge into the Company or
convey, transfer or lease its properties and assets substantially as an entirety
to the Company, unless:

      (a) if the Company shall consolidate with or merge into another Person or
convey, transfer or lease its properties and assets substantially as an entirety
to any Person, the entity formed by such consolidation or into which the Company
is merged or the Person that acquires by conveyance or transfer, or that leases,
the properties and assets of the Company substantially as an entirety shall be
an entity organized and existing under the laws of the United States of America
or any State or Territory thereof or the District of Columbia and shall
expressly assume, by an indenture supplemental hereto, executed and delivered to
the Trustee, in form reasonably satisfactory to the Trustee, the due and
punctual payment of the principal of and any premium and interest (including any
Additional Interest) on all the Securities and the performance of every covenant
of this Indenture on the part of the Company to be performed or observed;

      (b) immediately after giving effect to such transaction, no Event of
Default, and no event that, after notice or lapse of time, or both, would
constitute an Event of Default, shall have happened and be continuing; and

      (c) the Company has delivered to the Trustee an Officers' Certificate and
an Opinion of Counsel, each stating that such consolidation, merger, conveyance,
transfer or lease and, if a supplemental indenture is required in connection
with such transaction, any such supplemental indenture comply with this Article
VIII and that all conditions precedent herein provided for relating to such
transaction have been complied with; and the Trustee may rely upon such
Officers' Certificate and Opinion of Counsel as conclusive evidence that such
transaction complies with this Section 8.1.

                                       52
<PAGE>

      SECTION 8.2. Successor Company Substituted.

      (a) Upon any consolidation or merger by the Company with or into any other
Person, or any conveyance, transfer or lease by the Company of its properties
and assets substantially as an entirety to any Person in accordance with Section
8.1 and the execution and delivery to the Trustee of the supplemental indenture
described in Section 8.1(a), the successor entity formed by such consolidation
or into which the Company is merged or to which such conveyance, transfer or
lease is made shall succeed to, and be substituted for, and may exercise every
right and power of, the Company under this Indenture with the same effect as if
such successor Person had been named as the Company herein; and in the event of
any such conveyance or transfer, following the execution and delivery of such
supplemental indenture, the Company shall be discharged from all obligations and
covenants under the Indenture and the Securities.

      (b) Such successor Person may cause to be executed, and may issue either
in its own name or in the name of the Company, any or all of the Securities
issuable hereunder that theretofore shall not have been signed by the Company
and delivered to the Trustee; and, upon the order of such successor Person
instead of the Company and subject to all the terms, conditions and limitations
in this Indenture prescribed, the Trustee shall authenticate and shall deliver
any Securities that previously shall have been signed and delivered by the
officers of the Company to the Trustee for authentication, and any Securities
that such successor Person thereafter shall cause to be executed and delivered
to the Trustee on its behalf. All the Securities so issued shall in all respects
have the same legal rank and benefit under this Indenture as the Securities
theretofore or thereafter issued in accordance with the terms of this Indenture.

      (c) In case of any such consolidation, merger, sale, conveyance or lease,
such changes in phraseology and form may be made in the Securities thereafter to
be issued as may be appropriate to reflect such occurrence.

                                   ARTICLE IX

                            Supplemental Indentures

      SECTION 9.1. Supplemental Indentures without Consent of Holders.

      Without the consent of any Holders, the Company, when authorized by a
Board Resolution, and the Trustee, at any time and from time to time, may enter
into one or more indentures supplemental hereto, in form reasonably satisfactory
to the Trustee, for any of the following purposes:

      (a) to evidence the succession of another Person to the Company, and the
assumption by any such successor of the covenants of the Company herein and in
the Securities; or

      (b) to cure any ambiguity, to 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 Indenture, which shall not be inconsistent with the other provisions of
this Indenture, provided, that such action pursuant to this clause (b) shall

                                       53
<PAGE>

not adversely affect in any material respect the interests of any Holders or the
holders of the Preferred Securities; or

      (c) to add to the covenants, restrictions or obligations of the Company or
to add to the Events of Default, provided, that such action pursuant to this
clause (c) shall not adversely affect in any material respect the interests of
any Holders or the holders of the Preferred Securities; or

      (d) to modify, eliminate or add to any provisions of the Indenture or the
Securities to such extent as shall be necessary to ensure that the Securities
are treated as indebtedness of the Company for United States Federal income tax
purposes, provided, that such action pursuant to this clause (d) shall not
adversely affect in any material respect the interests of any Holders or the
holders of the Preferred Securities.

      SECTION 9.2. Supplemental Indentures with Consent of Holders.

      (a) With the consent of the Holders of not less than a majority in
aggregate principal amount of the Outstanding Securities, by Act of said Holders
delivered to the Company and the Trustee, the Company, when authorized by a
Board Resolution, and the Trustee may enter into an indenture or indentures
supplemental hereto for the purpose of adding any provisions to or changing in
any manner or eliminating any of the provisions of this Indenture or of
modifying in any manner the rights of the Holders of Securities under this
Indenture; provided, that no such supplemental indenture shall, without the
consent of the Holder of each Outstanding Security of an affected securities,

            (i) change the Stated Maturity of the principal or any premium of
      any Security or change the date of payment of any installment of interest
      (including any Additional Interest) on any Security, or reduce the
      principal amount thereof or the rate of interest thereon or any premium
      payable upon the redemption thereof or change the place of payment where,
      or the coin or currency in which, any Security or interest thereon is
      payable, or restrict or impair the right to institute suit for the
      enforcement of any such payment on or after such date, or

            (ii) reduce the percentage in aggregate principal amount of the
      Outstanding Securities, the consent of whose Holders is required for any
      such supplemental indenture, or the consent of whose Holders is required
      for any waiver of compliance with any provision of this Indenture or of
      defaults hereunder and their consequences provided for in this Indenture,
      or

            (iii) modify any of the provisions of this Section 9.2, Section 5.13
      or Section 10.7, except to increase any percentage in aggregate principal
      amount of the Outstanding Securities, the consent of whose Holders is
      required for any reason, or to provide that certain other provisions of
      this Indenture cannot be modified or waived without the consent of the
      Holder of each Security;

provided, further, that, so long as any Preferred Securities of an affected
series remain outstanding, no amendment under this Section 9.2 shall be
effective until the holders of a majority in Liquidation Amount (as defined in
the Trust Agreement) of the Trust Securities of

                                       54
<PAGE>

such series shall have consented to such amendment; provided, further, that if
the consent of the holder of each Outstanding Security is required for any
amendment under this Indenture, such amendment shall not be effective until the
holder of each Outstanding Trust Security shall have consented to such
amendment.

      (b) It shall not be necessary for any Act of Holders under this Section
9.2 to approve the particular form of any proposed supplemental indenture, but
it shall be sufficient if such Act shall approve the substance thereof. SECTION
9.3. Execution of Supplemental Indentures.

      In executing or accepting the additional trusts created by any
supplemental indenture permitted by this Article IX or the modifications thereby
of the trusts created by this Indenture, the Trustee shall be entitled to
receive, and shall be fully protected in conclusively relying upon, an Officers'
Certificate and an Opinion of Counsel stating that the execution of such
supplemental indenture is authorized or permitted by this Indenture, and that
all conditions precedent herein provided for relating to such action have been
complied with. The Trustee may, but shall not be obligated to, enter into any
such supplemental indenture that affects the Trustee's own rights, duties,
indemnities or immunities under this Indenture or otherwise. Copies of the final
form of each supplemental indenture shall be delivered by the Trustee at the
expense of the Company to each Holder, and, if the Trustee is the Property
Trustee, to each holder of Preferred Securities, promptly after the execution
thereof.

      SECTION 9.4. Effect of Supplemental Indentures.

      Upon the execution of any supplemental indenture under this Article IX,
this Indenture shall be modified in accordance therewith, and such supplemental
indenture shall form a part of this Indenture for all purposes; and every Holder
of Securities theretofore or thereafter authenticated and delivered hereunder
shall be bound thereby.

      SECTION 9.5. Reference in Securities to Supplemental Indentures.

      Securities authenticated and delivered after the execution of any
supplemental indenture pursuant to this Article IX may, and shall if required by
the Company, bear a notation in form approved by the Company as to any matter
provided for in such supplemental indenture. If the Company shall so determine,
new Securities so modified as to conform, in the opinion of the Company, to any
such supplemental indenture may be prepared and executed by the Company and
authenticated and delivered by the Trustee in exchange for Outstanding
Securities.

                                       55
<PAGE>

                                   ARTICLE X

                                   Covenants

      SECTION 10.1. Payment of Principal, Premium and Interest.

      The Company covenants and agrees for the benefit of the Securities that it
will duly and punctually pay the principal of and any premium and interest
(including any Additional Interest) on the Securities in accordance with the
terms of the Securities and this Indenture.

      SECTION 10.2. Money for Security Payments to be Held in Trust.

      (a) If the Company shall at any time act as its own Paying Agent with
respect to the Securities, it will, on or before each due date of the principal
of and any premium or interest (including any Additional Interest) on the
Securities, segregate and hold in trust for the benefit of the Persons entitled
thereto a sum sufficient to pay the principal and any premium or interest
(including Additional Interest) so becoming due until such sums shall be paid to
such Persons or otherwise disposed of as herein provided, and will promptly
notify the Trustee in writing of its failure so to act.

      (b) Whenever the Company shall have one or more Paying Agents, it will,
prior to 10:00 a.m., New York City time, on each due date of the principal of or
any premium or interest (including any Additional Interest) on any Securities,
deposit with a Paying Agent a sum sufficient to pay such amount, such sum to be
held as provided in the Trust Indenture Act and (unless such Paying Agent is the
Trustee) the Company will promptly notify the Trustee of its failure so to act.

      (c) The Company will cause each Paying Agent for the Securities other than
the Trustee to execute and deliver to the Trustee an instrument in which such
Paying Agent shall agree with the Trustee, subject to the provisions of this
Section 10.2, that such Paying Agent will (i) comply with the provisions of the
Trust Indenture Act applicable to it as a Paying Agent and (ii) during the
continuance of any default by the Company (or any other obligor upon the
Securities) in the making of any payment in respect of the Securities, upon the
written request of the Trustee, forthwith pay to the Trustee all sums held in
trust by such Paying Agent for payment in respect of the Securities.

      (d) The Company may at any time, for the purpose of obtaining the
satisfaction and discharge of this Indenture or for any other purpose, pay, or
by Company Order direct any Paying Agent to pay, to the Trustee all sums held in
trust by the Company or such Paying Agent, such sums to be held by the Trustee
upon the same terms as those upon which such sums were held by the Company or
such Paying Agent; and, upon such payment by any Paying Agent to the Trustee,
such Paying Agent shall be released from all further liability with respect to
such money.

      (e) Any money deposited with the Trustee or any Paying Agent, or then held
by the Company in trust for the payment of the principal of and any premium or
interest (including any Additional Interest) on any Security and remaining
unclaimed for two years after such principal

                                       56
<PAGE>

and any premium or interest has become due and payable shall (unless otherwise
required by mandatory provision of applicable escheat or abandoned or unclaimed
property law) be paid on Company Request to the Company, or (if then held by the
Company) shall (unless otherwise required by mandatory provision of applicable
escheat or abandoned or unclaimed property law) be discharged from such trust;
and the Holder of such Security shall thereafter, as an unsecured general
creditor, look only to the Company for payment thereof, and all liability of the
Trustee or such Paying Agent with respect to such trust money, and all liability
of the Company as trustee thereof, shall thereupon cease; provided, that the
Trustee or such Paying Agent, before being required to make any such repayment,
may at the expense of the Company cause to be published once, in a newspaper
published in the English language, customarily published on each Business Day
and of general circulation in the Borough of Manhattan, The City of New York,
notice that such money remains unclaimed and that, after a date specified
therein, which shall not be less than thirty (30) days from the date of such
publication, any unclaimed balance of such money then remaining will be repaid
to the Company.

      SECTION 10.3. Statement as to Compliance.

      The Company shall deliver to the Trustee, within one hundred and twenty
(120) days after the end of each fiscal year of the Company ending after the
date hereof, an Officers' Certificate covering the preceding fiscal year,
stating whether or not to the knowledge of the signers thereof the Company is in
default in the performance or observance of any of the terms, provisions and
conditions of this Indenture (without regard to any period of grace or
requirement of notice provided hereunder), and if the Company shall be in
default, specifying all such defaults and the nature and status thereof of which
they may have knowledge.

      SECTION 10.4. Calculation Agent.

      (a) The Company hereby agrees that for so long as any of the Securities
remain Outstanding, there will at all times be an agent appointed to calculate
LIBOR in respect of each Interest Payment Date in accordance with the terms of
Schedule A (the "Calculation Agent"). The Company has initially appointed the
Trustee as Calculation Agent for purposes of determining LIBOR for each Interest
Payment Date. The Calculation Agent may be removed by the Company at any time.
So long as the Property Trustee holds any of the Securities, the Calculation
Agent shall be the Property Trustee. If the Calculation Agent is unable or
unwilling to act as such or is removed by the Company, the Company will promptly
appoint as a replacement Calculation Agent the London office of a leading bank
which is engaged in transactions in Eurodollar deposits in the international
Eurodollar market and which does not control or is not controlled by or under
common control with the Company 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 (as
defined in Schedule A), 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 Interest Payment Date,
and will communicate such rate and amount to the Company, the Trustee, each
Paying Agent and the

                                       57
<PAGE>

Depositary. The Calculation Agent will also specify to the Company the
quotations upon which the foregoing rates and amounts are based and, in any
event, the Calculation Agent shall notify the Company 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 Interest Payment 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 Securities,
"Business Day" shall be defined as any day on which dealings in deposits in
Dollars are transacted in the London interbank market.

      SECTION 10.5. Additional Tax Sums.

      So long as no Event of Default has occurred and is continuing, if (a) the
Trust is the Holder of all of the Outstanding Securities and (b) a Tax Event
described in clause (i) or (iii) in the definition of Tax Event in Section 1.1
hereof has occurred and is continuing, the Company shall pay to the Trust (and
its permitted successors or assigns under the related Trust Agreement) for so
long as the Trust (or its permitted successor or assignee) is the registered
holder of the Outstanding Securities, such amounts as may be necessary in order
that the amount of Distributions (including any Additional Interest Amount (as
defined in the Trust Agreement)) then due and payable by the Trust on the
Preferred Securities and Common Securities that at any time remain outstanding
in accordance with the terms thereof shall not be reduced as a result of any
Additional Taxes arising from such Tax Event (additional such amounts payable by
the Company to the Trust, the "Additional Tax Sums"). Whenever in this Indenture
or the Securities there is a reference in any context to the payment of
principal of or interest on the Securities, such mention shall be deemed to
include mention of the payments of the Additional Tax Sums provided for in this
Section 10.5 to the extent that, in such context, Additional Tax Sums are, were
or would be payable in respect thereof pursuant to the provisions of this
Section 10.5 and express mention of the payment of Additional Tax Sums (if
applicable) in any provisions hereof shall not be construed as excluding
Additional Tax Sums in those provisions hereof where such express mention is not
made; provided, that the deferral of the payment of interest pursuant to Section
3.9 on the Securities shall not defer the payment of any Additional Tax Sums
that may be due and payable.

      SECTION 10.6. Additional Covenants.

      (a) The Company covenants and agrees with each Holder of Securities that
if an Event of Default shall have occurred and be continuing or the Company
shall have given notice of its election to begin an Extension Period with
respect to any series of Securities and shall not have rescinded such notice, or
such Extension Period, or any extension thereof, shall be continuing, it shall
not (i) declare or pay any dividends or distributions on, or redeem, purchase,
acquire or make a liquidation payment with respect to, any shares of the
Company'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
Company that rank pari passu in all respects with or junior in interest to the
Securities (other than (A) repurchases, redemptions or other acquisitions of
shares of capital stock of the Company in connection with any employment

                                       58
<PAGE>

contract, benefit plan or other similar arrangement with or for the benefit of
any one or more employees, officers, directors or consultants, in connection
with a dividend reinvestment or stockholder stock purchase plan or in connection
with the issuance of capital stock of the Company (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 Company's
capital stock (or any capital stock of a Subsidiary of the Company) for any
class or series of the Company's capital stock or of any class or series of the
Company's indebtedness for any class or series of the Company's capital stock,
(C) the purchase of fractional interests in shares of the Company'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, 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).

      (b) The Company also covenants with each Holder of Securities (i) to hold,
directly or indirectly, one hundred percent (100%) of the Common Securities of
the Trust, provided, that any permitted successor of the Company hereunder may
succeed to the Company's ownership of such Common Securities, (ii) as holder of
such Common Securities, not to voluntarily dissolve, wind-up or liquidate the
Trust other than (A) in connection with a distribution of the Securities to the
holders of the Preferred Securities in liquidation of the Trust or (B) in
connection with certain mergers, consolidations or amalgamations permitted by
the Trust Agreement and (iii) to use its reasonable commercial efforts,
consistent with the terms and provisions of the Trust Agreement, to cause the
Trust to continue to be taxable as a grantor trust and not as a corporation for
United States Federal income tax purposes.

      SECTION 10.7. Waiver of Covenants.

      The Company may omit in any particular instance to comply with any
covenant or condition contained in Section 10.6 if, before or after the time for
such compliance, the Holders of at least a majority in aggregate principal
amount of the Outstanding Securities of any affected series shall, by Act of
such Holders, and at least a majority of the aggregate Liquidation Amount (as
defined in the Trust Agreement) of the corresponding Preferred Securities then
outstanding, by consent of such holders, either waive such compliance in such
instance or generally waive compliance with such covenant or condition, but no
such waiver shall extend to or affect such covenant or condition except to the
extent so expressly waived, and, until such waiver shall become effective, the
obligations of the Company in respect of any such covenant or condition shall
remain in full force and effect.

      SECTION 10.8. Treatment of Securities.

      The Company will treat the Securities as indebtedness, and the amounts
payable in respect of the principal amount of such Securities as interest, for
all U.S. federal income tax purposes. All payments in respect of the Securities
will be made free and clear of U.S.

                                       59
<PAGE>

withholding tax to any beneficial owner thereof that has provided an Internal
Revenue Service Form W-8BEN (or any substitute or successor form) establishing
its non-U.S. status for U.S. federal income tax purposes.

                                   ARTICLE XI

                            Redemption of Securities

      SECTION 11.1. Optional Redemption.

      The Company may, at its option, on any Interest Payment Date, on or after
the fifth (5th) anniversary of the initial Interest Payment Date, redeem a given
series of Securities in whole at any time or in part from time to time, at a
Redemption Price equal to one hundred percent (100%) of the principal amount
thereof (or of 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
Company shall have received the prior approval of the Federal Reserve with
respect to such redemption if then required.

      SECTION 11.2. Special Event Redemption.

      Upon the occurrence and during the continuation of a Special Event, the
Company may, at its option, redeem the Securities, in whole but not in part, at
a redemption price equal to the Redemption Price specified in Section 11.1
above, together, in the case of any such redemption, with accrued interest,
including any Additional Interest, to but excluding the date fixed for
redemption (the "Special Event Redemption Price"); provided, that the Company
shall have received the prior approval of the Federal Reserve with respect to
such redemption if then required.

      SECTION 11.3. Election to Redeem; Notice to Trustee.

      The election of the Company to redeem any Securities in a given series, in
whole or in part, shall be evidenced by or pursuant to a Board Resolution. In
case of any redemption at the election of the Company, the Company shall, not
less than forty five (45) days and not more than seventy five (75) days prior to
the Redemption Date (unless a shorter notice shall be satisfactory to the
Trustee), notify the Trustee and the Property Trustee under the Trust Agreement
in writing of such date and of the principal amount of the Securities to be
redeemed and provide the additional information required to be included in the
notice or notices contemplated by Section 11.5. In the case of any redemption of
Securities, in whole or in part, (a) prior to the expiration of any restriction
on such redemption provided in this Indenture or the Securities or (b) pursuant
to an election of the Company which is subject to a condition specified in this
Indenture or the Securities, the Company shall furnish the Trustee with an
Officers' Certificate and an Opinion of Counsel evidencing compliance with such
restriction or condition.

                                       60
<PAGE>

      SECTION 11.4. Selection of Securities to be Redeemed.

      (a) If less than all the Securities of a given series are to be redeemed,
the particular Securities to be redeemed shall be selected not more than sixty
(60) days prior to the Redemption Date by the Trustee from the Outstanding
Securities of that series not previously called for redemption, by such method
as the Trustee shall deem fair and appropriate and which may provide for the
selection for redemption of a portion of the principal amount of any or each
Security of that series, provided, that the unredeemed portion of the principal
amount of any Security shall be in an authorized denomination (which shall not
be less than the minimum authorized denomination) for such Security.

      (b) The Trustee shall promptly notify the Company in writing of the
Securities selected for redemption and, in the case of any Securities selected
for partial redemption, the principal amount thereof to be redeemed. For all
purposes of this Indenture, unless the context otherwise requires, all
provisions relating to the redemption of Securities shall relate, in the case of
any Security redeemed or to be redeemed only in part, to the portion of the
principal amount of such Security that has been or is to be redeemed.

      (c) The provisions of paragraphs (a) and (b) of this Section 11.4 shall
not apply with respect to any redemption affecting only a single Security,
whether such Security is to be redeemed in whole or in part. In the case of any
such redemption in part, the unredeemed portion of the principal amount of the
Security shall be in an authorized denomination (which shall not be less than
the minimum authorized denomination) for such Security.

      SECTION 11.5. Notice of Redemption.

      (a) Notice of redemption shall be given not later than the thirtieth
(30th) day, and not earlier than the sixtieth (60th) day, prior to the
Redemption Date to each Holder of Securities to be redeemed, in whole or in part
(unless a shorter notice shall be satisfactory to the Property Trustee under the
related Trust Agreement).

      (b) With respect to Securities to be redeemed, in whole or in part, each
notice 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, as calculated by the Company, together
      with a statement that it is an estimate and that the actual Redemption
      Price will be calculated on the fifth Business Day prior to the Redemption
      Date (and if an 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 Outstanding Securities of a series are to be
      redeemed, the identification (and, in the case of partial redemption, the
      respective principal amounts) of the particular Securities to be redeemed;

                                       61
<PAGE>

            (iv) that on the Redemption Date, the Redemption Price will become
      due and payable upon each such Security or portion thereof, and that any
      interest (including any Additional Interest) on such Security or such
      portion, as the case may be, shall cease to accrue on and after said date;
      and

            (v) the place or places where such Securities are to be surrendered
      for payment of the Redemption Price.

      (c) Notice of redemption of Securities to be redeemed, in whole or in
part, at the election of the Company shall be given by the Company or, at the
Company's request, by the Trustee in the name and at the expense of the Company
and shall be irrevocable. The notice if mailed in the manner provided above
shall be conclusively presumed to have been duly given, whether or not the
Holder receives such notice. In any case, a failure to give such notice by mail
or any defect in the notice to the Holder of any Security designated for
redemption as a whole or in part shall not affect the validity of the
proceedings for the redemption of any other Security.

      SECTION 11.6. Deposit of Redemption Price.

      Prior to 10:00 a.m., New York City time, on the Redemption Date specified
in the notice of redemption given as provided in Section 11.5, the Company will
deposit with the Trustee or with one or more Paying Agents (or if the Company is
acting as its own Paying Agent, the Company will segregate and hold in trust as
provided in Section 10.2) an amount of money sufficient to pay the Redemption
Price of, and any accrued interest (including any Additional Interest) on, all
the Securities (or portions thereof) that are to be redeemed on that date.

      SECTION 11.7. Payment of Securities Called for Redemption.

      (a) If any notice of redemption has been given as provided in Section
11.5, the Securities or portion of Securities with respect to which such notice
has been given shall become due and payable on the date and at the place or
places stated in such notice at the applicable Redemption Price, together with
accrued interest (including any Additional Interest) to the Redemption Date. On
presentation and surrender of such Securities at a Place of Payment specified in
such notice, the Securities or the specified portions thereof shall be paid and
redeemed by the Company at the applicable Redemption Price, together with
accrued interest (including any Additional Interest) to the Redemption Date.

      (b) Upon presentation of any Security redeemed in part only, the Company
shall execute and the Trustee shall authenticate and deliver to the Holder
thereof, at the expense of the Company, a new Security or Securities, of
authorized denominations, in aggregate principal amount equal to the unredeemed
portion of the Security so presented and having the same Original Issue Date,
Stated Maturity and terms.

      (c) If any Security called for redemption shall not be so paid upon
surrender thereof for redemption, the principal of and any premium on such
Security shall, until paid, bear interest from the Redemption Date at the rate
prescribed therefor in the Security.

                                       62
<PAGE>

                                  ARTICLE XII

                          Subordination of Securities

      SECTION 12.1. Securities Subordinate to Senior Debt.

      The Company covenants and agrees, and each Holder of a Security, by its
acceptance thereof, likewise covenants and agrees, that, to the extent and in
the manner hereinafter set forth in this Article XII, the payment of the
principal of and any premium and interest (including any Additional Interest) on
each and all of the Securities are hereby expressly made subordinate and subject
in right of payment to the prior payment in full of all Senior Debt.

      SECTION 12.2. No Payment When Senior Debt in Default; Payment Over of
Proceeds Upon Dissolution, Etc.

      (a) In the event and during the continuation of any default by the Company
in the payment of any principal of or any premium or interest on any Senior Debt
(following any grace period, if applicable) when the same becomes due and
payable, whether at maturity or at a date fixed for prepayment or by declaration
of acceleration or otherwise, then, upon written notice of such default to the
Company by the holders of such Senior Debt or any trustee therefor, unless and
until such default shall have been cured or waived or shall have ceased to
exist, no direct or indirect payment (in cash, property, securities, by set-off
or otherwise) shall be made or agreed to be made on account of the principal of
or any premium or interest (including any Additional Interest) on any of the
Securities, or in respect of any redemption, repayment, retirement, purchase or
other acquisition of any of the Securities.

      (b) In the event of a bankruptcy, insolvency or other proceeding described
in clause (d) or (e) of the definition of Event of Default (each such event, if
any, herein sometimes referred to as a "Proceeding"), all Senior Debt (including
any interest thereon accruing after the commencement of any such proceedings)
shall first be paid in full before any payment or distribution, whether in cash,
securities or other property, shall be made to any Holder of any of the
Securities on account thereof. Any payment or distribution, whether in cash,
securities or other property (other than securities of the Company or any other
entity provided for by a plan of reorganization or readjustment the payment of
which is subordinate, at least to the extent provided in these subordination
provisions with respect to the indebtedness evidenced by the Securities, to the
payment of all Senior Debt at the time outstanding and to any securities issued
in respect thereof under any such plan of reorganization or readjustment), which
would otherwise (but for these subordination provisions) be payable or
deliverable in respect of the Securities shall be paid or delivered directly to
the holders of Senior Debt in accordance with the priorities then existing among
such holders until all Senior Debt (including any interest thereon accruing
after the commencement of any Proceeding) shall have been paid in full.

      (c) In the event of any Proceeding, after payment in full of all sums
owing with respect to Senior Debt, the Holders of the Securities, together with
the holders of any obligations of the Company ranking on a parity with the
Securities, shall be entitled to be paid from the remaining assets of the
Company the amounts at the time due and owing on account of unpaid principal of
and any premium and interest (including any Additional Interest) on the
Securities

                                       63
<PAGE>

and such other obligations before any payment or other distribution, whether in
cash, property or otherwise, shall be made on account of any capital stock or
any obligations of the Company ranking junior to the Securities and such other
obligations. If, notwithstanding the foregoing, any payment or distribution of
any character or any security, whether in cash, securities or other property
(other than securities of the Company or any other entity provided for by a plan
of reorganization or readjustment the payment of which is subordinate, at least
to the extent provided in these subordination provisions with respect to the
indebtedness evidenced by the Securities, to the payment of all Senior Debt at
the time outstanding and to any securities issued in respect thereof under any
such plan of reorganization or readjustment) shall be received by the Trustee or
any Holder in contravention of any of the terms hereof and before all Senior
Debt shall have been paid in full, such payment or distribution or security
shall be received in trust for the benefit of, and shall be paid over or
delivered and transferred to, the holders of the Senior Debt at the time
outstanding in accordance with the priorities then existing among such holders
for application to the payment of all Senior Debt remaining unpaid, to the
extent necessary to pay all such Senior Debt (including any interest thereon
accruing after the commencement of any Proceeding) in full. In the event of the
failure of the Trustee or any Holder to endorse or assign any such payment,
distribution or security, each holder of Senior Debt is hereby irrevocably
authorized to endorse or assign the same.

      (d) The Trustee and the Holders, at the expense of the Company, shall take
such reasonable action (including the delivery of this Indenture to an agent for
any holders of Senior Debt or consent to the filing of a financing statement
with respect hereto) as may, in the opinion of counsel designated by the holders
of a majority in principal amount of the Senior Debt at the time outstanding, be
necessary or appropriate to assure the effectiveness of the subordination
effected by these provisions.

      (e) The provisions of this Section 12.2 shall not impair any rights,
interests, remedies or powers of any secured creditor of the Company in respect
of any security interest the creation of which is not prohibited by the
provisions of this Indenture.

      (f) The securing of any obligations of the Company, otherwise ranking on a
parity with the Securities or ranking junior to the Securities, shall not be
deemed to prevent such obligations from constituting, respectively, obligations
ranking on a parity with the Securities or ranking junior to the Securities.

      SECTION 12.3. Payment Permitted If No Default.

      Nothing contained in this Article XII or elsewhere in this Indenture or in
any of the Securities shall prevent (a) the Company, at any time, except during
the pendency of the conditions described in paragraph (a) of Section 12.2 or of
any Proceeding referred to in Section 12.2, from making payments at any time of
principal of and any premium or interest (including any Additional Interest) on
the Securities or (b) the application by the Trustee of any moneys deposited
with it hereunder to the payment of or on account of the principal of and any
premium or interest (including any Additional Interest) on the Securities or the
retention of such payment by the Holders, if, at the time of such application by
the Trustee, it did not have

                                       64
<PAGE>

knowledge (in accordance with Section 12.8) that such payment would have been
prohibited by the provisions of this Article XII, except as provided in Section
12.8.

      SECTION 12.4. Subrogation to Rights of Holders of Senior Debt.

      Subject to the payment in full of all amounts due or to become due on all
Senior Debt, or the provision for such payment in cash or cash equivalents or
otherwise in a manner satisfactory to the holders of Senior Debt, the Holders of
the Securities shall be subrogated to the extent of the payments or
distributions made to the holders of such Senior Debt pursuant to the provisions
of this Article XII (equally and ratably with the holders of all indebtedness of
the Company that by its express terms is subordinated to Senior Debt of the
Company to substantially the same extent as the Securities are subordinated to
the Senior Debt and is entitled to like rights of subrogation by reason of any
payments or distributions made to holders of such Senior Debt) to the rights of
the holders of such Senior Debt to receive payments and distributions of cash,
property and securities applicable to the Senior Debt until the principal of and
any premium and interest (including any Additional Interest) on the Securities
shall be paid in full. For purposes of such subrogation, no payments or
distributions to the holders of the Senior Debt of any cash, property or
securities to which the Holders of the Securities or the Trustee would be
entitled except for the provisions of this Article XII, and no payments made
pursuant to the provisions of this Article XII to the holders of Senior Debt by
Holders of the Securities or the Trustee, shall, as among the Company, its
creditors other than holders of Senior Debt, and the Holders of the Securities,
be deemed to be a payment or distribution by the Company to or on account of the
Senior Debt.

      SECTION 12.5. Provisions Solely to Define Relative Rights.

      The provisions of this Article XII are and are intended solely for the
purpose of defining the relative rights of the Holders of the Securities on the
one hand and the holders of Senior Debt on the other hand. Nothing contained in
this Article XII or elsewhere in this Indenture or in the Securities is intended
to or shall (a) impair, as between the Company and the Holders of the
Securities, the obligations of the Company, which are absolute and
unconditional, to pay to the Holders of the Securities the principal of and any
premium and interest (including any Additional Interest) on the Securities as
and when the same shall become due and payable in accordance with their terms,
(b) affect the relative rights against the Company of the Holders of the
Securities and creditors of the Company other than their rights in relation to
the holders of Senior Debt or (c) prevent the Trustee or the Holder of any
Security (or to the extent expressly provided herein, the holder of any
Preferred Security) from exercising all remedies otherwise permitted by
applicable law upon default under this Indenture, including filing and voting
claims in any Proceeding, subject to the rights, if any, under this Article XII
of the holders of Senior Debt to receive cash, property and securities otherwise
payable or deliverable to the Trustee or such Holder.

      SECTION 12.6. Trustee to Effectuate Subordination.

      Each Holder of a Security by his or her acceptance thereof authorizes and
directs the Trustee on his or her behalf to take such action as may be necessary
or appropriate to

                                       65
<PAGE>

acknowledge or effectuate the subordination provided in this Article XII and
appoints the Trustee his or her attorney-in-fact for any and all such purposes.

      SECTION 12.7. No Waiver of Subordination Provisions.

      (a) No right of any present or future holder of any Senior Debt to enforce
subordination as herein provided shall at any time in any way be prejudiced or
impaired by any act or failure to act on the part of the Company or by any act
or failure to act, in good faith, by any such holder, or by any noncompliance by
the Company with the terms, provisions and covenants of this Indenture,
regardless of any knowledge thereof that any such holder may have or be
otherwise charged with.

      (b) Without in any way limiting the generality of paragraph (a) of this
Section 12.7, the holders of Senior Debt may, at any time and from to time,
without the consent of or notice to the Trustee or the Holders of the
Securities, without incurring responsibility to such Holders of the Securities
and without impairing or releasing the subordination provided in this Article
XII or the obligations hereunder of such Holders of the Securities to the
holders of Senior Debt, do any one or more of the following: (i) change the
manner, place or terms of payment or extend the time of payment of, or renew or
alter, Senior Debt, or otherwise amend or supplement in any manner Senior Debt
or any instrument evidencing the same or any agreement under which Senior Debt
is outstanding, (ii) sell, exchange, release or otherwise deal with any property
pledged, mortgaged or otherwise securing Senior Debt, (iii) release any Person
liable in any manner for the payment of Senior Debt and (iv) exercise or refrain
from exercising any rights against the Company and any other Person.

      SECTION 12.8. Notice to Trustee.

      (a) The Company shall give prompt written notice to a Responsible Officer
of the Trustee of any fact known to the Company that would prohibit the making
of any payment to or by the Trustee in respect of the Securities.
Notwithstanding the provisions of this Article XII or any other provision of
this Indenture, the Trustee shall not be charged with knowledge of the existence
of any facts that would prohibit the making of any payment to or by the Trustee
in respect of the Securities, unless and until a Responsible Officer of the
Trustee shall have received written notice thereof from the Company or a holder
of Senior Debt or from any trustee, agent or representative therefor; provided,
that if the Trustee shall not have received the notice provided for in this
Section 12.8 at least two Business Days prior to the date upon which by the
terms hereof any monies may become payable for any purpose (including, the
payment of the principal of and any premium on or interest (including any
Additional Interest) on any Security), then, anything herein contained to the
contrary notwithstanding, the Trustee shall have full power and authority to
receive such monies and to apply the same to the purpose for which they were
received and shall not be affected by any notice to the contrary that may be
received by it within two Business Days prior to such date.

      (b) The Trustee shall be entitled to rely on the delivery to it of a
written notice by a Person representing himself or herself to be a holder of
Senior Debt (or a trustee, agent, representative or attorney-in-fact therefor)
to establish that such notice has been given by a holder of Senior Debt (or a
trustee, agent, representative or attorney-in-fact therefor). In the

                                       66
<PAGE>

event that the Trustee determines in good faith that further evidence is
required with respect to the right of any Person as a holder of Senior Debt to
participate in any payment or distribution pursuant to this Article XII, the
Trustee may request such Person to furnish evidence to the reasonable
satisfaction of the Trustee as to the amount of Senior Debt held by such Person,
the extent to which such Person is entitled to participate in such payment or
distribution and any other facts pertinent to the rights of such Person under
this Article XII, and if such evidence is not furnished, the Trustee may defer
any payment to such Person pending judicial determination as to the right of
such Person to receive such payment.

      SECTION 12.9. Reliance on Judicial Order or Certificate of Liquidating
Agent.

      Upon any payment or distribution of assets of the Company referred to in
this Article XII, the Trustee and the Holders of the Securities shall be
entitled to conclusively rely upon any order or decree entered by any court of
competent jurisdiction in which such Proceeding is pending, or a certificate of
the trustee in bankruptcy, receiver, liquidating trustee, custodian, assignee
for the benefit of creditors, agent or other Person making such payment or
distribution, delivered to the Trustee or to the Holders of Securities, for the
purpose of ascertaining the Persons entitled to participate in such payment or
distribution, the holders of the Senior Debt and other indebtedness of the
Company, the amount thereof or payable thereon, the amount or amounts paid or
distributed thereon and all other facts pertinent thereto or to this Article
XII.

      SECTION 12.10. Trustee Not Fiduciary for Holders of Senior Debt.

      The Trustee, in its capacity as trustee under this Indenture, shall not be
deemed to owe any fiduciary duty to the holders of Senior Debt and shall not be
liable to any such holders if it shall in good faith mistakenly pay over or
distribute to Holders of Securities or to the Company or to any other Person
cash, property or securities to which any holders of Senior Debt shall be
entitled by virtue of this Article XII or otherwise.

      SECTION 12.11. Rights of Trustee as Holder of Senior Debt; Preservation of
Trustee's Rights.

      The Trustee in its individual capacity shall be entitled to all the rights
set forth in this Article XII with respect to any Senior Debt that may at any
time be held by it, to the same extent as any other holder of Senior Debt, and
nothing in this Indenture shall deprive the Trustee of any of its rights as such
holder.

      SECTION 12.12. Article Applicable to Paying Agents.

      If at any time any Paying Agent other than the Trustee shall have been
appointed by the Company and be then acting hereunder, the term "Trustee" as
used in this Article XII shall in such case (unless the context otherwise
requires) be construed as extending to and including such Paying Agent within
its meaning as fully for all intents and purposes as if such Paying Agent were
named in this Article XII in addition to or in place of the Trustee; provided,
that Sections 12.8 and 12.11 shall not apply to the Company or any Affiliate of
the Company if the Company or such Affiliate acts as Paying Agent.

                                       67
<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.

                                    * * * *

                                       68
<PAGE>

      IN WITNESS WHEREOF, the parties hereto have caused this Indenture to be
duly executed as of the day and year first above written.

                                MERCANTILE BANK CORPORATION

                                By: /s/ Gerald R. Johnson, Jr.
                                    --------------------------------------------
                                    Gerald R. Johnson, Jr.
                                    Chairman and Chief Executive Officer:

                                WILMINGTON TRUST COMPANY, not in its
                                individual capacity, but solely as Trustee

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

                                       69
<PAGE>

                                                                      SCHEDULE A

                             DETERMINATION OF LIBOR

      With respect to the 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 an Interest
Payment Date (except, with respect to the first interest payment period, two
Business Days prior to the Original Issue Date) (each such day, a "LIBOR
Determination Date"), LIBOR for any given security shall, for the following
interest payment 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
<PAGE>

                                                                       EXHIBIT A

                             Officer's Certificate

      The undersigned, the [Chief Financial Officer] [Treasurer] [Executive Vice
President] hereby certifies, pursuant to Section 7.3(b) of the Junior
Subordinated Indenture, dated as of September 16, 2004, among Mercantile Bank
Corporation (the "Company") and Wilmington Trust Company, as trustee, that, as
of [date], [20__], the Company had the following ratios and balances:

BANK HOLDING COMPANY
As of [Quarterly Financial Dates]

<TABLE>
<S>                                                             <C>
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                                             $
                                                                   -------
</TABLE>

* 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__.

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

                                    Ex. A-1
<PAGE>

                                                                       EXHIBIT A

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

                                    Ex. A-2
<PAGE>

FINANCIAL DEFINITIONS

<TABLE>
<CAPTION>
                         Corresponding FRY-9C or LP Line Items with Line Item
     Report Item                       Corresponding Schedules                       Description of Calculation
------------------------------------------------------------------------------------------------------------------------
<S>                     <C>                                                     <C>
Tier 1 Risk             BHCK7206                                                Tier 1 Risk Ratio: Core Capital (Tier
Weighted Assets         Schedule HC-R                                            1)/ Risk-Adjusted Assets
------------------------------------------------------------------------------------------------------------------------
Ratio of Double         (BHCP0365)/(BCHCP3210)                                  Total equity investments in
Leverage                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   (BHCK5525-BHCK3506+BHCK5526-                            Total Nonperforming Assets
to Loans and OREO       BHCK3507+BHCK2744)/(BHCK2122+BHCK2744)                  (NPLs+Foreclosed Real
                         Schedules HC-C, HC-M & HC-N                            Estate+Other Nonaccrual &
                                                                                Repossessed Assets)/Total
                                                                                Loans+Foreclosed Real Estate
------------------------------------------------------------------------------------------------------------------------
Tangible Common         (BHDM3210-BHCK3163)/(BHCK2170-BHCK3163)                 (Equity Capital - Goodwill)/(Total
Equity as a                                                                     Assets - Goodwill)
Percentage of           Schedule HC
Tangible Assets
------------------------------------------------------------------------------------------------------------------------
Ratio of Reserves to    (BHCK3123+BHCK3128)/(BHCK5525-                          Total Loan Loss and Allocated
Non-Performing Loans    BHCK3506+BHCK5526-BHCK3507)                             Transfer Risk Reserves/ Total
                                                                                Nonperforming Loans
                        Schedules HC & HC-N & HC-R                              (Nonaccrual + Restructured)
------------------------------------------------------------------------------------------------------------------------
Ratio of Net            (BHCK4635-BHCK4605)/(BHCK3516)                          Net charge offs for the period as a
Charge-Offs to Loans                                                            percentage of average loans.
                        Schedules HC-B & HC-K
------------------------------------------------------------------------------------------------------------------------
Return on Average       (BHCK4340/BHCK3368)                                     Net Income as a percentage of
Assets (annualized)                                                             Assets.
                        Schedules HI & HC-K
------------------------------------------------------------------------------------------------------------------------
Net Interest Margin     (BHCK4519)/(BHCK3515+BHCK3365+BHCK3516                  (Net Interest Income Fully Taxable
(annualized)            +BHCK3401+BHCKB985)                                     Equivalent, if available/Average
                                                                                Earning Assets)
                        Schedules HI Memorandum and HC-K
------------------------------------------------------------------------------------------------------------------------
Efficiency Ratio        (BHCK4093)/(BHCK4519+BHCK4079)                          (Non-interest Expense)/(Net Interest
                                                                                Income Fully Taxable Equivalent, if
                        Schedule HI                                             available, plus Non-interest Income)
------------------------------------------------------------------------------------------------------------------------
Ratio of Loans to       (BHCKB528+BHCK5369)/(BHCK2170)                          Total Loans & Leases (Net of
Assets                                                                          Unearned Income & Gross of
                        Schedule HC                                             Reserve)/Total Assets
</TABLE>

                                       1
<PAGE>

<TABLE>
<S>                     <C>                                                     <C>
Ratio of Loans to       (BHCKB528+BHCK5369)/(BHDM6631+BHDM663                   Total Loans & Leases (Net of
Deposits                6+BHFN6631+BHFN6636)                                    Unearned Income & Gross of
                                                                                Reserve)/Total Deposits (Includes
                        Schedule HC                                             Domestic and Foreign Deposits)
------------------------------------------------------------------------------------------------------------------------
Total Assets            (BHCK2170)                                              The sum of total assets. Includes
                                                                                cash and balances due from
                        Schedule HC                                             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)before
                                                                                extraordinary items and other
                        Schedule                                                HI adjustments and extraordinary
                                                                                items; and other adjustments,
                                                                                net of income taxes.
------------------------------------------------------------------------------------------------------------------------
</TABLE>

                                       2
<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             Not applicable                                               Not applicable
Leverage
------------------------------------------------------------------------------------------------------------------------
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 + Foreclosed
                            PD30/(SC23+SC30+SC34+SC40)                                   Real Estate+Other
                                                                                         Non-accrual & Repossessed
                                                                                         assets+Foreclosed Real Estate)

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

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

------------------------------------------------------------------------------------------------------------------------
Ratio of Net Charge-        Schedule VA - Consolidated Valuation Allowances and          Net charge offs for the
offs 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           (SC23+SC30+SC34)/(SC60)                                      Total Loan & Leases /
Assets                                                                                   Total assets
------------------------------------------------------------------------------------------------------------------------
Ratio of Loans to           (SC23+SC30+SC34)/(SC710)                                     Total Loans & Leases /
 Deposits                                                                                Total Deposits
------------------------------------------------------------------------------------------------------------------------
Total Assets                Schedule SC                                                  The sum of total assets.
                            SC60
------------------------------------------------------------------------------------------------------------------------
Net Income                  Schedule SO                                                  The sum of income (loss).
                            SO91
------------------------------------------------------------------------------------------------------------------------
</TABLE>


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