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<SEC-DOCUMENT>0000950123-09-018555.txt : 20090629
<SEC-HEADER>0000950123-09-018555.hdr.sgml : 20090629
<ACCEPTANCE-DATETIME>20090629152054
ACCESSION NUMBER:		0000950123-09-018555
CONFORMED SUBMISSION TYPE:	11-K
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20081231
FILED AS OF DATE:		20090629
DATE AS OF CHANGE:		20090629

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MERCANTILE BANK CORP
		CENTRAL INDEX KEY:			0001042729
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				383360865
		STATE OF INCORPORATION:			MI
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		11-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-26719
		FILM NUMBER:		09915973

	BUSINESS ADDRESS:	
		STREET 1:		310 LEONARD STREET NW
		CITY:			GRAND RAPIDS
		STATE:			MI
		ZIP:			49504
		BUSINESS PHONE:		616 406-3000

	MAIL ADDRESS:	
		STREET 1:		310 LEONARD STREET NW
		CITY:			GRAND RAPIDS
		STATE:			MI
		ZIP:			49504
</SEC-HEADER>
<DOCUMENT>
<TYPE>11-K
<SEQUENCE>1
<FILENAME>k48043e11vk.htm
<DESCRIPTION>FORM 11-K
<TEXT>
<HTML>
<HEAD>
<TITLE>11-K</TITLE>
</HEAD>
<BODY bgcolor="#FFFFFF">
<!-- PAGEBREAK -->
<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>
<DIV style="font-family: 'Times New Roman',Times,serif">


<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 1pt solid black; font-size: 1pt">&nbsp;</DIV>






<DIV align="center" style="font-size: 14pt; margin-top: 12pt"><B>UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION</B>
</DIV>

<DIV align="center" style="font-size: 12pt"><B>WASHINGTON, D.C. 20549</B>
</DIV>

<DIV align="center" style="font-size: 18pt; margin-top: 12pt"><B>FORM 11-K</B>
</DIV>

<DIV align="center">
<TABLE cellspacing="0" border="0" cellpadding="0" width="100%" style="font-size: 12pt">
<TR style="font-size: 6pt">
    <TD width="7%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="88%">&nbsp;</TD>
</TR>
<TR valign="top">
    <TD align="center"><FONT face="Wingdings">&#254;</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><B>ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934</B></TD>
</TR>
</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 12%"><B><B>For the fiscal year ended December&nbsp;31, 2008</B>
</B>
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>OR</B>
</DIV>

<DIV align="center">
<TABLE cellspacing="0" border="0" cellpadding="0" width="100%" style="font-size: 12pt">
<TR style="font-size: 6pt">
    <TD width="7%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="88%">&nbsp;</TD>
</TR>
<TR valign="top">
    <TD align="center"><FONT face="Wingdings">&#111;</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><B>TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934.</B></TD>
</TR>
</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 12%"><B><B>For the transition period from <U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U> to </B><U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U>
</B>
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>Commission File No.&nbsp;000-26719</B>
</DIV>

<DIV align="center" style="font-size: 18pt; margin-top: 12pt"><B>Mercantile Bank of Michigan 401(k) Plan</B>
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt">Mercantile Bank Corporation<BR>
310 Leonard Street, NW<BR>
Grand Rapids, Michigan 49504<BR>
(616)&nbsp;406-3000
</DIV>


<DIV style="width: 100%; border-bottom: 1pt solid black; margin-top: 10pt; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>





<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">





<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><B>Mercantile Bank of Michigan<BR>
401(k) Plan</B>
</DIV>

<DIV align="left">
<A name="301"></A>
</DIV>

<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><B>Financial Statements<BR>
and Supplemental Schedule<BR>
Years Ended December&nbsp;31, 2008 and 2007</B>
<DIV style="width: 100%; border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV>
</DIV>



<P align="right" style="font-size: 10pt"><!-- Folio -->1<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always">&nbsp;</H5><P>


<DIV style="font-family: 'Times New Roman',Times,serif">


<DIV align="left">
<!-- TOC -->
</DIV>
<DIV align="left">
<A name="tocpage"></A>
</DIV>



<DIV align="right" style="font-size: 12pt; margin-top: 12pt"><B>Mercantile Bank of Michigan 401(k) Plan</B>
</DIV>


<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><B>Contents</B>
<DIV style="width: 100%; border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="88%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#300"><B>Report of Independent Registered Public Accounting Firm</B></A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><B>Financial Statements</B></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px"><A href="#302">Statements of Net Assets Available for Benefits as of
December&nbsp;31, 2008 and 2007</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">4</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px"><A href="#303">Statements of Changes in Net Assets Available for Benefits for the
Years Ended December&nbsp;31, 2008 and 2007</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">5</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px"><A href="#304">Notes to Financial Statements</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">6-12</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><B>Supplemental Schedule</B></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px"><A href="#306">Schedule&nbsp;H, Line 4i &#151; Schedule of Assets (Held at End of Year) as of
December&nbsp;31, 2008</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">13</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#307"><B>Signature</B></A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">15</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><B>Consent
of Independent Registered Public Accounting Firm</B></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
<TR><TD colspan="9"><FONT size="2">&nbsp;<A HREF="k48043exv23w1.htm">EX-23.1</A></FONT></TD></TR>
</TABLE>
</DIV>

<DIV align="left">
<!-- /TOC -->
</DIV>


<P align="right" style="font-size: 10pt; margin-top: 24pt"><!-- Folio -->2<!-- /Folio -->
</DIV>




<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>
<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="left">
<A name="300"></A>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Report of Independent Registered Public Accounting Firm</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Plan Administrator of<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Mercantile Bank of Michigan 401(k) Plan<BR>
Grand Rapids, Michigan

</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">We have audited the accompanying statements of net assets available for benefits of the Mercantile
Bank of Michigan 401(k) Plan (Plan) as of December&nbsp;31, 2008 and 2007, and the related statements of
changes in net assets available for benefits for the years then ended. These financial statements
are the responsibility of the Plan&#146;s management. Our responsibility is to express an opinion on
these financial statements based on our audits.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">We conducted our audits in accordance with the standards of the Public Company Accounting Oversight
Board (United States). Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material misstatement. The
Plan is not required to have, nor were we engaged to perform, an audit of its internal control over
financial reporting. Our audits included consideration of internal control over financial reporting
as a basis for designing audit procedures that are appropriate in the circumstances, but not for
the purpose of expressing an opinion on the effectiveness of the Plan&#146;s internal control over
financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on
a test basis, evidence supporting the amounts and disclosures in the financial statements,
assessing the accounting principles used and significant estimates made by management, as well as
evaluating the overall financial statement presentation. We believe that our audits provide a
reasonable basis for our opinion.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">In our opinion, the financial statements referred to above present fairly, in all material
respects, the net assets available for benefits of the Plan as of December&nbsp;31, 2008 and 2007, and
the changes in net assets available for benefits for the years then ended in conformity with
accounting principles generally accepted in the United States of America.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Our audits were performed for the purpose of forming an opinion on the basic financial statements
taken as a whole. The accompanying supplemental Schedule of Assets (Held at End of Year) as of
December&nbsp;31, 2008 is presented for the purpose of additional analysis and is not a required part of
the basic financial statements, but is supplementary information required by the Department of
Labor&#146;s Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income
Security Act of 1974. This supplemental schedule is the responsibility of the Plan&#146;s management.
The supplemental schedule has been subjected to the auditing procedures applied in the audits of
the basic financial statements and, in our opinion, is fairly stated in all material respects in
relation to the basic financial statements taken as a whole.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt">/s/ BDO SEIDMAN, LLP
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Grand Rapids, Michigan<BR>
June&nbsp;24, 2009

</DIV>


<P align="right" style="font-size: 10pt"><!-- Folio -->3<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">




<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><FONT style="font-size:12pt"><B>Mercantile Bank of Michigan<BR>
401(k) Plan</B></FONT>
</DIV>

<DIV align="left">
<A name="302"></A>
</DIV>

<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><B>Statements of Net Assets Available for Benefits</B><BR>
<DIV style="width: 100%; border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left"><I>December 31,</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="RIGHT" colspan="2"><B>2008</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="RIGHT" colspan="2">2007</TD>
    <TD>&nbsp;</TD>
</TR>


<!-- End Table Head -->
<!-- Begin Table Body -->
<TR style="font-size: 1px">
    <TD colspan="9" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><B>Assets</B></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Investments, at fair value (Note 3 and 4):</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Mutual funds</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="LEFT"><B>$ </B></TD>
    <TD align="right"><B>5,805,794</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="LEFT"><B>$ </B></TD>
    <TD align="right">9,352,295</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Common stock &#151; securities of employer (Note 5)</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><B>1,417,163</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2,895,369</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Common/collective trust (Note 2)</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><B>506,029</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">481,868</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Money market fund</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><B>737</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">892</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Participant loans</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><B>142,872</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">154,091</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="9" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Total investments</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><B>7,872,595</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">12,884,515</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Cash</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><B>80,572</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">19,902</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="9" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><B>Net Assets Available for Benefits, at Fair Value</B></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><B>7,953,167</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">12,904,417</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Adjustment from fair value to contract value for fully
benefit-responsive investment contract (Note 2)</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><B>27,645</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3,778</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="9" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><B>Net Assets Available for Benefits</B></DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="LEFT"><B>$</B></TD>
    <TD align="right"><B>7,980,812</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="LEFT"><B>$</B></TD>
    <TD align="right">12,908,195</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="9" align="left" style="border-top: 3px double #000000">&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><I>See accompanying notes to financial statements.</I>
</DIV>



<P align="right" style="font-size: 10pt"><!-- Folio -->4<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>


<DIV style="font-family: 'Times New Roman',Times,serif">




<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><FONT style="font-size:12pt"><B>Mercantile Bank of Michigan<BR>
401(k) Plan</B></FONT>
</DIV>

<DIV align="left">
<A name="303"></A>
</DIV>

<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><B>Statements of Changes in Net Assets Available for Benefits</B>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left"><I>Year ended December 31,</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right" colspan="2"><B>2008</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right" colspan="2">2007</TD>
    <TD>&nbsp;</TD>
</TR>


<!-- End Table Head -->
<!-- Begin Table Body -->
<TR style="font-size: 1px">
    <TD colspan="9" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><B>Additions</B></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Investment income (loss):</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Net depreciation in fair value of
investments (Note 3)</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left"><B>$</B></TD>
    <TD align="right"><B>(6,488,719</B></TD>
    <TD nowrap><B>)</B></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">(3,660,702</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Interest</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><B>10,206</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">11,254</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Dividends &#151; cash</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><B>346,745</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">839,125</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="9" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Total investment loss</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right"><B>(6,131,768</B></TD>
    <TD nowrap><B>)</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">(2,810,323</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="9" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Contributions:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Employer</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><B>810,053</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">747,421</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Employee</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><B>1,330,448</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,249,677</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Rollover</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><B>307,097</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">233,051</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="9" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Total contributions</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><B>2,447,598</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2,230,149</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="9" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><B>Total Additions</B></DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right"><B>(3,684,170</B></TD>
    <TD nowrap><B>)</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">(580,174</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="9" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><B>Deductions</B></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Benefits paid to participants</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><B>1,212,423</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">985,148</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Deemed distributions</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><B>26,939</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Administrative expense</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><B>3,851</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3,320</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="9" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><B>Total Deductions</B></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><B>1,243,213</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">988,468</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="9" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Net decrease</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right"><B>(4,927,383</B></TD>
    <TD nowrap><B>)</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">(1,568,642</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><B>Net Assets Available for Benefits, </B>beginning of year</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><B>12,908,195</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">14,476,837</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="9" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><B>Net Assets Available for Benefits, </B>end of year</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left"><B>$</B></TD>

    <TD align="right"><B>7,980,812</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>

    <TD align="right">12,908,195</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="9" align="left" style="border-top: 3px double #000000">&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><I>See accompanying notes to financial statements.</I>
</DIV>



<P align="right" style="font-size: 10pt"><!-- Folio -->5<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">




<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><FONT style="font-size:12pt"><B>Mercantile Bank of Michigan<BR>
401(k) Plan</B></FONT>
</DIV>

<DIV align="left">
<A name="304"></A>
</DIV>

<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><B>Notes to Financial Statements</B><BR>
<DIV style="width: 100%; border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV>
</DIV>


<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left"><B>1.</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD><B>Plan Description</B></TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The following description of Mercantile Bank of Michigan 401(k) Plan (Plan) provides only
general information. Participants should refer to the Plan Agreement or Summary Plan
Description for a more complete description of the Plan&#146;s provisions.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><B><I>General</I></B></TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The Plan was established by the Plan sponsor, Mercantile Bank of Michigan (Bank), effective
January&nbsp;1, 1998. The Plan is a defined contribution plan covering eligible employees who
have completed one hour of service. Eligible employees can enter the Plan on the first day
of the fiscal quarter following date of hire. The Plan is subject to the Employee
Retirement Income Security Act of 1974 (ERISA).</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><B><I>Contributions</I></B></TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Elective deferrals by participants under the 401(k) provisions are based on a percentage of
their compensation, subject to certain limitations as defined by the Plan Agreement.
Participants may also roll over account balances from other qualified defined benefit or
defined contribution plans into their account. Effective January&nbsp;1, 2008, participants may
elect to make Roth deferral contributions.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The Bank may contribute additional amounts at the discretion of the Bank&#146;s Board of
Directors in the form of a matching contribution, which is a percentage of the participant&#146;s
elective contribution for the year. In 2008 and 2007, the Bank made matching contributions
equal to 100% of the first 5% of compensation deferred by each participant, subject to
certain limitations as specified in the Plan Agreement.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Effective March&nbsp;27, 2009, the Bank suspended the employer matching contributions.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><B><I>Participant Accounts</I></B></TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Each participant&#146;s account is credited with the participant&#146;s contributions, allocations of
the Bank&#146;s matching contribution and Plan earnings. Allocations are based on participant
earnings or account balances, as defined. The benefit to which a participant is entitled is
the benefit that can be provided from the participant&#146;s vested account. Participants may
direct the investment of their account balances into various investment options offered by
the Plan.</TD>
</TR>

</TABLE>
</DIV>
<P align="right" style="font-size: 10pt"><!-- Folio -->6<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">


<DIV style="margin-top: 6pt"><TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">



</TABLE>
</DIV>

<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><FONT style="font-size:12pt"><B>Mercantile Bank of Michigan<BR>
401(k) Plan </B></FONT>
</DIV>


<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><B>Notes to Financial Statements</B><BR>
<DIV style="width: 100%; border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV>
</DIV>


<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><B><I>Vesting</I></B></TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Participants are immediately vested in their elective deferrals and employer contributions
and earnings thereon.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><B><I>Participant Loans</I></B></TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Participants may borrow from their accounts a minimum of $1,000 up to a maximum equal to the
lesser of $50,000 or 50% of their account balance. The loans are secured by the balance in
the participant&#146;s account and bear interest at rates that are commensurate with local
borrowing rates. Interest rates in effect as of December&nbsp;31, 2008 ranged from 4.0% to
8.25%. Principal and interest is paid ratably through payroll deductions over a period not
to exceed five years, unless the loans were used to purchase a primary residence, in which
case the loan terms shall not exceed ten years.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><B><I>Payment of Benefits</I></B></TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Upon separation of service, death, disability or retirement, a participant or his or her
beneficiary will receive a distribution of the participant&#146;s account as a lump-sum amount.
A participant may receive the portion of his or her account invested in Mercantile Bank
Corporation common stock in either common shares or cash. Additionally, under certain
circumstances of financial hardship, participants are allowed to withdraw funds from the
Plan.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><B><I>Administrative Expenses</I></B></TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Substantially all administrative expenses are paid by the Plan sponsor.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><B><I>New Accounting Pronouncements</I></B></TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>In September&nbsp;2006, the Financial Accounting Standards Board issued Statement of Financial
Accounting Standards (SFAS)&nbsp;No.&nbsp;157, <I>Fair Value Measurements </I>(SFAS No.
157). SFAS No.&nbsp;157 defines fair value, establishes a framework for measuring fair value,
and expands disclosures about fair value measurements. SFAS No.&nbsp;157 applies to reporting
periods beginning after November&nbsp;15, 2007. As of January&nbsp;1, 2008, the Plan has adopted SFAS
No.&nbsp;157. See Note 4, Fair Value Measurements. There was no material impact to the
financial statements of the Plan upon adoption of SFAS No.&nbsp;157.</TD>
</TR>

</TABLE>
</DIV>
<P align="right" style="font-size: 10pt"><!-- Folio -->7<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">


<DIV style="margin-top: 6pt"><TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">



</TABLE>
</DIV>

<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><FONT style="font-size:12pt"><B>Mercantile Bank of Michigan<BR>
401(k) Plan</B></FONT>
</DIV>


<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><B>Notes to Financial Statements</B><BR>
<DIV style="width: 100%; border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV>
</DIV>


<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left"><B>2.</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD><B>Significant Accounting Policies</B></TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><B><I>Basis of Accounting</I></B></TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The accompanying financial statements are prepared under the accrual method of accounting.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><B><I>Use of Estimates</I></B></TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The preparation of financial statements in conformity with generally accepted accounting
principles in the United States of America requires management to make estimates and
assumptions that affect the reported amounts of net assets and changes therein. Actual
results could differ from those estimates.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><B><I>Risks and Uncertainties</I></B></TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The Plan invests in various investment securities. Investment securities are exposed to
various risks such as interest rate, market and credit risks. Due to the level of risk
associated with certain investment securities, it is at least reasonably possible that
changes in the values of investment securities will occur in the near term and that such
changes could materially affect participants&#146; account balances and the amounts reported in
the financial statements.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><B><I>Concentration of Credit Risk</I></B></TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>At December&nbsp;31, 2008 and 2007, approximately 18% and 22%, respectively, of the Plan&#146;s assets
were invested in Mercantile Bank Corporation common stock. A significant decline in the
market value of the common stock would significantly affect the net assets available for
benefits.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><B><I>Investment Valuation and Income Recognition</I></B></TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The Plan&#146;s investments are stated at fair value. The fair value of mutual funds and
Mercantile Bank Corporation common stock are based on quoted market prices on the last day
of the Plan year. The Plan invests in investment contracts through a common collective
trust (CCT). Investment contracts held by a defined contribution plan are required to be
reported at fair value, with an adjustment to contract value in the amount participants
would receive if they were to initiate permitted transactions under the terms</TD>
</TR>

</TABLE>
</DIV>


<P align="right" style="font-size: 10pt"><!-- Folio -->8<!-- /Folio -->
</DIV>




<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>
<DIV style="font-family: 'Times New Roman',Times,serif">


<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><FONT style="font-size:12pt"><B>Mercantile Bank of Michigan<BR>
401(k) Plan</B></FONT>
</DIV>


<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><B>Notes to Financial Statements</B><BR>
<DIV style="width: 100%; border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV>
</DIV>


<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>of the Plan. The fair value of the Plan&#146;s interest in the CCT is based on audited
information reported by the issuer at year-end. The contract value of the CCT represents
contributions plus earnings, less participant withdrawals and administrative expenses.
Participant loans are stated at cost, which approximates fair value. Purchases and sales of
investments are recorded on a trade-date basis. Interest income is recorded on the accrual
basis. Dividends are recorded on the ex-dividend date.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><B><I>Payment of Benefits</I></B></TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Benefits are recorded when paid.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><B><I>Reclassifications</I></B></TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Certain reclassifications of prior year amounts have been made to conform to the current
year presentation.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left"><B>3.</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD><B>Investments</B></TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Investments that represent 5% or more of the fair value of the Plan&#146;s net assets available
for benefits are as follows:</TD>
</TR>

</TABLE>
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left"><I>December 31,</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right" colspan="2"><B>2008</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right" colspan="2">2007</TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR style="font-size: 1px">
    <TD colspan="9" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Mutual funds</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">American Funds Growth Fund of America</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left"><B>$</B></TD>
    <TD align="right"><B>991,658</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">1,738,142</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Mutual Beacon Fund</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><B>594,864</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,388,269</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">American Funds Europacific Growth Fund</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><B>757,171</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,286,040</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">American Funds Cap World Growth &#038; Income</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><B>558,390</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,061,085</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Federated Kaufman Fund</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><B>547,097</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">868,914</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Royce Value Fund</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><B>506,702</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">689,493</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">American Funds Investment Company of America</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><B>484,151</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">678,763</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">PIMCO Total Return</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><B>578,795</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">*</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Union Bond &#038; Trust Co. Stable Value Fund**</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><B>533,674</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">*</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Common stock</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Mercantile Bank Corporation</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><B>1,417,163</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2,895,369</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="9" align="left" style="border-top: 3px double #000000">&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>




<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="96"></TD>
</TR>

<TR style="font-size: 3pt"><TD>&nbsp;</TD></TR>
<TR valign="top">
    <TD nowrap align="left"><I>*</I></TD>
    <TD>&nbsp;</TD>
    <TD><I>Below 5% of net assets available for benefits.</I></TD>
</TR>

<TR style="font-size: 3pt"><TD>&nbsp;</TD></TR>

<TR valign="top">
    <TD nowrap align="left"><I>**</I></TD>
    <TD>&nbsp;</TD>
    <TD><I>The Union Bond &#038; Trust Company Stable Value Fund is listed above at contract value.</I></TD>
</TR>

</TABLE>


<P align="right" style="font-size: 10pt"><!-- Folio -->9<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">






<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><FONT style="font-size:12pt"> <B>Mercantile Bank of Michigan<BR>
401(k) Plan </B></FONT>
</DIV>


<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><B>Notes to Financial Statements</B><BR>
<DIV style="width: 100%; border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV>
</DIV>


<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>During 2008 and 2007, the Plan&#146;s investments (including gains and losses on investments
bought and sold, as well as held during the year) appreciated (depreciated)&nbsp;in fair value as
follows:</TD>
</TR>

</TABLE>
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left"><I>December 31,</I></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right" colspan="2"><B>2008</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right" colspan="2">2007</TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR style="font-size: 1px">
    <TD colspan="9" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Mutual funds</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left"><B>$</B></TD>
    <TD align="right"><B>(3,600,252</B></TD>
    <TD nowrap><B>)</B></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">117,018</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Common/collective trust</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right"><B>17,809</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">13,960</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Common stock</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right"><B>(2,906,276</B></TD>
    <TD nowrap><B>)</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(3,791,680</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="9" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Net depreciation in fair
value of investments</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left"><B>$</B></TD>
    <TD align="right"><B>(6,488,719</B></TD>
    <TD nowrap><B>)</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(3,660,702</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="9" align="left" style="border-top: 3px double #000000">&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left"><B>4.</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD><B>Fair Value Measurements</B></TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>As of January&nbsp;1, 2008, the Plan adopted SFAS No.&nbsp;157. SFAS No.&nbsp;157 establishes a fair value
hierarchy that prioritizes the inputs to valuation techniques used to measure fair value.
The hierarchy gives the highest priority to unadjusted quoted prices in active markets for
identical assets or liabilities (Level 1 measurement) and the lowest priority to
unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy
under SFAS No.&nbsp;157 are described below:</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><I>Basis of Fair Value Measurement</I></TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Level 1 &#151; Unadjusted quoted prices in active markets that are accessible at the measurement
date for identical, unrestricted assets or liabilities;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Level 2 &#151; Quoted prices in markets that are not considered to be active or financial
instruments for which all significant inputs are observable, either directly or indirectly;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Level 3 &#151; Prices or valuations that require inputs that are both significant to the fair
value measurement and unobservable.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>A financial instrument&#146;s level within the fair value hierarchy is based on the lowest level
of any input that is significant to the fair value measurement.</TD>
</TR>

</TABLE>
</DIV>
<P align="right" style="font-size: 10pt"><!-- Folio -->10<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">


<DIV style="margin-top: 6pt"><TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">



</TABLE>
</DIV>

<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><FONT style="font-size:12pt"><B>Mercantile Bank of Michigan<BR>
401(k) Plan</B></FONT>
</DIV>


<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><B>Notes to Financial Statements</B><BR>
<DIV style="width: 100%; border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV>
</DIV>


<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The following table sets forth, by level within the fair value hierarchy, the Plan
investment assets at fair value, as of December&nbsp;31, 2008.</TD>
</TR>

</TABLE>
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="52%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="14">Investments at Fair Value</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="14" style="border-bottom: 1px solid #000000">As of December 31, 2008</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right" colspan="2">Level 1</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right" colspan="2">Level 2</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right" colspan="2">Level 3</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right" colspan="2">Total</TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR style="font-size: 1px">
    <TD colspan="17" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Mutual funds</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">5,805,794</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">5,805,794</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Common stock</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,417,163</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,417,163</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Common/collective trust</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">506,029</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">506,029</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Money market fund</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">737</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">737</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Participant loans</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">142,872</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">142,872</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="17" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><B>Total Investments at Fair Value</B></DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">7,223,694</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">648,901</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">7,872,595</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="17" align="left" style="border-top: 3px double #000000">&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left"><B>5.</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD><B>Related Party Transactions</B></TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Parties-in-interest are defined under Department of Labor (DOL)&nbsp;regulations as any fiduciary
of the Plan, any party rendering service to the Plan, the employer and certain other
parties. Professional fees for the administration and audit of the Plan are paid by the
Bank.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Certain Plan investments are managed by Charles Schwab Trust Company. Schwab is the
custodian as defined by the Plan; therefore, these transactions qualify as party-in-interest
transactions.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The 329,573 and 186,798 shares of Mercantile Bank Corporation common stock held by the Plan
as of December&nbsp;31, 2008 and 2007, respectively, represent approximately 3.84%
and 2.2% of the Corporation&#146;s outstanding shares as of December&nbsp;31, 2008 and 2007,
respectively.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Cash dividends of $76,801 and $102,061 were paid to the Plan by Mercantile Bank Corporation
during 2008 and 2007, respectively. A 5% stock dividend was declared and paid by Mercantile
Bank Corporation during 2007. As a result of this stock dividend,</TD>
</TR>

</TABLE>
</DIV>
<P align="right" style="font-size: 10pt"><!-- Folio -->11<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">


<DIV style="margin-top: 6pt"><TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">



</TABLE>
</DIV>

<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><FONT style="font-size:12pt"><B>Mercantile Bank of Michigan<BR>
401(k) Plan</B></FONT>
</DIV>


<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><B>Notes to Financial Statements</B><BR>
<DIV style="width: 100%; border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV>
</DIV>


<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Mercantile Bank Corporation issued 8,711 additional shares of Mercantile Bank Corporation
common stock to the Plan in 2007.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left"><B>6.</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD><B>Plan Termination</B></TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Although it has not expressed any intent to do so, the Bank has the right under the Plan to
discontinue its contributions at any time and to terminate the Plan, subject to the
provisions of ERISA.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left"><B>7.</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD><B>Tax Status</B></TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The Internal Revenue Service has determined and informed the Bank by a letter dated June&nbsp;1,
2001 that the Plan and related trust are designed in accordance with applicable sections of
the Internal Revenue Code (IRC). The Plan was amended and restated effective January&nbsp;1,
2008 and the Bank has applied for a new determination letter. The Plan Administrator
believes that the Plan is designed and is being operated in compliance with the applicable
requirements of the IRC. The related trust, therefore, is not subject to tax under present
tax law.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left"><B>8.</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD><B>Change in Trustee</B></TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Gerald R. Johnson, Jr. resigned as Trustee of the Mercantile Bank of Michigan 401(k) Plan on
June&nbsp;20, 2007. Lonna L. Wiersma became the successor Trustee of the Plan effective June
21, 2007.</TD>
</TR>

</TABLE>
</DIV>


<P align="right" style="font-size: 10pt"><!-- Folio -->12<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">




<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><FONT style="font-size:12pt"><B>Mercantile Bank of Michigan<BR>
401(k) Plan</B></FONT>
</DIV>

<DIV align="left">
<A name="306"></A>
</DIV>

<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><B>Schedule&nbsp;H, Line 4i &#151; Schedule of Assets (Held at End of Year)</B><BR>
<DIV style="width: 100%; border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV>
</DIV>


<DIV align="right" style="font-size: 10pt; margin-top: 12pt">EIN: 38-3360868<BR>
Plan Number: 001
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><I>December&nbsp;31, 2008</I>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="7%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="52%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" colspan="3">(c)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">Description of Investment,</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">(b)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">Including Maturity Date, Rate</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">Identity of Issuer, Borrower, Lessor</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">of Interest, Collateral, Par or</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">(d)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">(e)</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center">(a)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">or Similar Party</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">Maturity Value</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">Cost</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">Current Value</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR style="font-size: 1px">
    <TD colspan="15" valign="top" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:15px; text-indent:-15px">Mutual funds</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:30px; text-indent:-15px">American Funds Cap World Growth &#038; Income</DIV></TD>
    <TD>&nbsp;</TD>
    <TD colspan="3" align="right">21,119      shares</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">*</TD>
    <TD nowrap>*</TD>
    <TD>&nbsp;</TD>
    <TD align="right">$</TD>
    <TD align="right">558,390</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:30px; text-indent:-15px">Eaton Vance Emerging Markets Fund</DIV></TD>
    <TD>&nbsp;</TD>
    <TD colspan="3" align="right">18,963      shares</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">*</TD>
    <TD nowrap>*</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">215,613</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:30px; text-indent:-15px">American Funds Europacific Growth Fund</DIV></TD>
    <TD>&nbsp;</TD>
    <TD colspan="3" align="right">27,474      shares</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">*</TD>
    <TD nowrap>*</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">757,171</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:30px; text-indent:-15px">Federated Kaufman Fund</DIV></TD>
    <TD>&nbsp;</TD>
    <TD colspan="3" align="right">151,971      shares</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">*</TD>
    <TD nowrap>*</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">547,097</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:30px; text-indent:-15px">Franklin Income Fund</DIV></TD>
    <TD>&nbsp;</TD>
    <TD colspan="3" align="right">180,836      shares</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">*</TD>
    <TD nowrap>*</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">301,995</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:30px; text-indent:-15px">American Funds Growth Fund of America</DIV></TD>
    <TD>&nbsp;</TD>
    <TD colspan="3" align="right">49,092      shares</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">*</TD>
    <TD nowrap>*</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">991,659</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:30px; text-indent:-15px">American Funds Investment Co. of America</DIV></TD>
    <TD>&nbsp;</TD>
    <TD colspan="3" align="right">23,143      shares</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">*</TD>
    <TD nowrap>*</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">484,151</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:30px; text-indent:-15px">Mutual Beacon Fund</DIV></TD>
    <TD>&nbsp;</TD>
    <TD colspan="3" align="right">66,170      shares</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">*</TD>
    <TD nowrap>*</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">594,864</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:30px; text-indent:-15px">PIMCO High Yield Fund</DIV></TD>
    <TD>&nbsp;</TD>
    <TD colspan="3" align="right">14,005      shares</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">*</TD>
    <TD nowrap>*</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">93,691</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:30px; text-indent:-15px">PIMCO Total Return Fund</DIV></TD>
    <TD>&nbsp;</TD>
    <TD colspan="3" align="right">57,080      shares</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">*</TD>
    <TD nowrap>*</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">578,795</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:30px; text-indent:-15px">Royce Value Fund</DIV></TD>
    <TD>&nbsp;</TD>
    <TD colspan="3" align="right">72,386      shares</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">*</TD>
    <TD nowrap>*</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">506,702</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:30px; text-indent:-15px">VanGuard 500 Index Fund</DIV></TD>
    <TD>&nbsp;</TD>
    <TD colspan="3" align="right">2,114      shares</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">*</TD>
    <TD nowrap>*</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">175,666</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="15" valign="top" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:15px; text-indent:-15px">Total mutual funds</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">5,805,794</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="15" valign="top" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:15px; text-indent:-15px">Common stock</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">*</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:30px; text-indent:-15px">Mercantile Bank Corporation</DIV></TD>
    <TD>&nbsp;</TD>
    <TD colspan="3" align="right">329,573      shares</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">*</TD>
    <TD nowrap>*</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,417,163</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="15" valign="top" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:15px; text-indent:-15px">Common/collective trust</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:30px; text-indent:-15px">Union Bond &#038; Trust Stable Value Fund</DIV></TD>
    <TD>&nbsp;</TD>
    <TD colspan="3" align="right">24,646      shares</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">*</TD>
    <TD nowrap>*</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">533,674</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="15" valign="top" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:15px; text-indent:-15px">Money market fund</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">*</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:30px; text-indent:-15px">Schwab Value Advantage Fund</DIV></TD>
    <TD>&nbsp;</TD>
    <TD colspan="3" align="right">737      shares</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">*</TD>
    <TD nowrap>*</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">737</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="15" valign="top" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD align="center" valign="top">*</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:15px; text-indent:-15px">Participant loans</DIV></TD>
    <TD>&nbsp;</TD>
    <TD colspan="3" align="right">(4.0 % to 8.25%)</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="right">&#151;</TD>

    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">142,872</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="15" valign="top" align="left" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:15px; text-indent:-15px">Cash</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">80,572</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:15px; text-indent:-15px"><B>Total Assets</B></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">$</TD>
    <TD align="right">7,980,812</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD colspan="15" valign="top" align="left" style="border-top: 3px double #000000">&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>




<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="96"></TD>
</TR>

<TR valign="top">
    <TD nowrap align="left"><I>*</I></TD>
    <TD>&nbsp;</TD>
    <TD><I>A party-in-interest as defined by ERISA.</I></TD>
</TR>

<TR style="font-size: 3pt"><TD>&nbsp;</TD></TR>

<TR valign="top">
    <TD nowrap align="left"><I>**</I></TD>
    <TD>&nbsp;</TD>
    <TD><I>The cost of participant-directed investments is not required to be disclosed.</I></TD>
</TR>

</TABLE>




<P align="right" style="font-size: 10pt"><!-- Folio -->13<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">




<DIV align="left" style="font-size: 10pt; margin-top: 6pt"><B>Exhibit to Report on Form&nbsp;11-K</B>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="3%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="94%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left" style="border-bottom: 1px solid #000000">Exhibit No.</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left" style="border-bottom: 1px solid #000000">Exhibit Description</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of Independent Registered Public Accounting Firm</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="right" style="font-size: 10pt"><!-- Folio -->14<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="left">
<A name="307"></A>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>SIGNATURE</B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Pursuant to the requirements of the Securities Exchange Act of 1934, the trustee (or other persons
who administer the employee benefit plan) has duly caused this annual report to be signed on its
behalf by the undersigned hereunto duly authorized.
</DIV>


<TABLE width="100%" border="0" cellspacing="0" cellpadding="0" style="font-size: 10pt">
<TR>
    <TD width="48%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="15%">&nbsp;</TD>
</TR>
<TR>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD colspan="3" align="left">Mercantile Bank of Michigan<BR>
401(k) Plan<BR>
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">Date: June 24, 2009&nbsp;</TD>
    <TD valign="top">By:&nbsp;&nbsp;</TD>
    <TD colspan="2" style="border-bottom: 1px solid #000000" align="left">/s/ Lonna L. Wiersma
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Lonna L. Wiersma, Trustee&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>

</TABLE>

<P align="right" style="font-size: 10pt"><!-- Folio -->15<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">


<TABLE width="100%" border="0" cellspacing="0" cellpadding="0" style="font-size: 10pt">
<TR>
    <TD width="48%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="15%">&nbsp;</TD>
</TR>

</TABLE>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>Exhibit&nbsp;Index</B>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="3%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="94%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left" style="border-bottom: 1px solid #000000">Exhibit No.</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left" style="border-bottom: 1px solid #000000">Exhibit Description</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of Independent Registered Public Accounting Firm</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="right" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

</BODY>
</HTML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>2
<FILENAME>k48043exv23w1.htm
<DESCRIPTION>EX-23.1
<TEXT>
<HTML>
<HEAD>
<TITLE>EX-23.1</TITLE>
</HEAD>
<BODY bgcolor="#FFFFFF">
<!-- PAGEBREAK -->

<DIV style="font-family: 'Times New Roman',Times,serif">


<DIV align="right" style="font-size: 10pt; margin-top: 12pt">Exhibit&nbsp;23.1
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Consent of Independent Registered Public Accounting Firm</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Mercantile Bank of Michigan 401(k) Plan<BR>
Grand Rapids, Michigan

</DIV>
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">We hereby consent to the incorporation by reference in the Registration Statements on Form S-8
(Nos. 333-117763 and 333-152254) of our report dated June&nbsp;24, 2009 relating to the financial
statements and supplemental schedule of Mercantile Bank of Michigan 401(k) Plan appearing in this
Form 11-K for the year ended December&nbsp;31, 2008.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt">/s/ BDO SEIDMAN, LLP
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Grand Rapids, Michigan<BR>
June&nbsp;24, 2009

</DIV>


<P align="right" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>




</BODY>
</HTML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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