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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0000914208-09-000045.txt : 20090109
<SEC-HEADER>0000914208-09-000045.hdr.sgml : 20090109
<ACCEPTANCE-DATETIME>20090109155541
ACCESSION NUMBER:		0000914208-09-000045
CONFORMED SUBMISSION TYPE:	SC 13G
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20090109
DATE AS OF CHANGE:		20090109

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NORTHWEST PIPE CO
		CENTRAL INDEX KEY:			0001001385
		STANDARD INDUSTRIAL CLASSIFICATION:	STEEL PIPE & TUBES [3317]
		IRS NUMBER:				930557988
		STATE OF INCORPORATION:			OR
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-44989
		FILM NUMBER:		09518779

	BUSINESS ADDRESS:	
		STREET 1:		12005 N BURGARD
		STREET 2:		P O BOX 83149
		CITY:			PORTLAND
		STATE:			OR
		ZIP:			97203
		BUSINESS PHONE:		5032851400

	MAIL ADDRESS:	
		STREET 1:		12005 N BURGARD
		STREET 2:		P O BOX 83149
		CITY:			PORTLAND
		STATE:			OR
		ZIP:			97203

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Invesco Ltd.
		CENTRAL INDEX KEY:			0000914208
		STANDARD INDUSTRIAL CLASSIFICATION:	INVESTMENT ADVICE [6282]
		IRS NUMBER:				980557567
		STATE OF INCORPORATION:			D0
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G

	BUSINESS ADDRESS:	
		STREET 1:		1555 PEACHTREE STREET NE
		STREET 2:		SUITE 1800
		CITY:			ATLANTA
		STATE:			GA
		ZIP:			30309
		BUSINESS PHONE:		404-892-0896

	MAIL ADDRESS:	
		STREET 1:		1555 PEACHTREE STREET NE
		STREET 2:		SUITE 1800
		CITY:			ATLANTA
		STATE:			GA
		ZIP:			30309

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Invesco Ltd
		DATE OF NAME CHANGE:	20080508

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Invesco PLC
		DATE OF NAME CHANGE:	20080429

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Invesco Ltd.
		DATE OF NAME CHANGE:	20071205
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G
<SEQUENCE>1
<FILENAME>northwest010909.htm
<DESCRIPTION>NORTHWEST PIPE COMPANY
<TEXT>
<html>
    <head>
        <title></title>
    </head>

    <body style="FONT-FAMILY: 'Times New Roman'" bgcolor="#ffffff">
        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt" align="center"><b><font size="2">SECURITIES AND EXCHANGE COMMISSION</font></b></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 24pt; TEXT-ALIGN: center"><b><font size="2">Washington, D.C. 20549</font></b></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><b><font size="2">SCHEDULE 13G</font></b></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><b><font size="2">(Rule 13d-102)</font></b></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><b><font size="2">INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13D-1(b)</font></b></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 24pt; TEXT-ALIGN: center"><b><font size="2">AND AMENDMENTS FILED THERETO FILED PURSUANT TO RULE 13D-2(b)</font></b></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><b><font size="2">Under the Securities Exchange Act of 1934</font></b></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 24pt; TEXT-ALIGN: center"><b><font size="2">(Amendment No.</font></b> <u><font size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</font></u><b><font size="2">)*</font></b></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><u><b><font size="2">Northwest Pipe Company</font></b></u></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 12pt; TEXT-ALIGN: center"><b><font size="2">(Name of Issuer)</font></b></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><u><b><font size="2">Common Stock</font></b></u></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 12pt; TEXT-ALIGN: center"><b><font size="2">(Title of Classes of Securities)</font></b></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><u><b><font size="2">667746101</font></b></u></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><font size="2">(CUSIP Numbers)</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><u><b><font size="2">December 31, 2008</font></b></u></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 12pt; TEXT-ALIGN: center"><b><font size="2">(Date of Event Which Requires Filing of this Statement)</font></b></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 12pt; TEXT-ALIGN: left"><font size="2">Check the appropriate box to designate the rule pursuant to which this Schedule is filed:</font></p>

        <table style="BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="638" border="0">
            <tr>
                <td valign="top" nowrap width="213">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>

                <td valign="top" nowrap colspan="2">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="3">:X&nbsp; <font size="2">Rule 13d-1(b)</font></font></p>
                </td>

                <td valign="top" nowrap width="213">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>

            <tr>
                <td valign="top" nowrap width="213">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>

                <td valign="top" nowrap colspan="2">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="3">:&nbsp;&nbsp;&nbsp;&nbsp; <font size="2">Rule 13d-1(c)</font></font></p>
                </td>

                <td valign="top" nowrap width="213">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>

            <tr>
                <td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 12pt; PADDING-TOP: 0in" valign="top" nowrap colspan="2">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">
                    <font size="1"><font size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Rule
                    13d-1(d)</font></font></p>
                </td>

                <td style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 12pt; PADDING-TOP: 0in" valign="top" nowrap colspan="2">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>

            <tr>
                <td width="213">
                </td>

                <td width="106">
                </td>

                <td width="106">
                </td>

                <td width="213">
                </td>
            </tr>
        </table>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-INDENT: 1in; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 12pt; TEXT-ALIGN: left"><font size="2">*The remainder of this cover page shall be filled out for a reporting person&rsquo;s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 12pt; TEXT-ALIGN: left"><font size="2">The information required in the remainder of this cover page shall not be deemed to be &ldquo;filed&rdquo; for the purpose of Section 18 of the Securities Exchange Act of 1934 (&ldquo;Act&rdquo;) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"></p>
        <hr align="center" width="100%" noshade size="2">
        <br>
        <br>

        <p style="PAGE-BREAK-BEFORE: always"></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <table style="BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="792" border="0">
            <tr>
                <td valign="top" nowrap colspan="6">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">CUSIP No. <u>667746101</u></font></p>
                </td>

                <td valign="top" nowrap colspan="2">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>

            <tr>
                <td width="16">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>

                <td style="BORDER-RIGHT: gray 1pt solid; PADDING-RIGHT: 6pt; BORDER-TOP: gray 1pt solid; PADDING-LEFT: 6pt; PADDING-BOTTOM: 0in; BORDER-LEFT: gray 1pt solid; PADDING-TOP: 0in; BORDER-BOTTOM: gray 1pt solid" valign="top" nowrap colspan="2">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><b><font size="3">1</font></b></p>
                </td>

                <td style="BORDER-RIGHT: gray 1pt solid; PADDING-RIGHT: 6pt; BORDER-TOP: gray 1pt solid; PADDING-LEFT: 6pt; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: gray 1pt solid" valign="top" nowrap colspan="4">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">NAME OF REPORTING PERSON</font></p>

                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)</font></p>

                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>

                    <p style="MARGIN-TOP: 0in; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 109pt; TEXT-INDENT: -73pt; TEXT-ALIGN: left"><font size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Invesco Ltd.</font><br>
                    <font size="2">IRS #980557567</font></p>

                    <p style="MARGIN-TOP: 0in; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 181pt; TEXT-INDENT: -181pt; TEXT-ALIGN: left"><font size="2">Invesco PowerShares Capital Management LLC</font></p>

                    <p style="MARGIN-TOP: 0in; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 181pt; TEXT-INDENT: -181pt; TEXT-ALIGN: left"><font size="2">Invesco Aim Advisors, Inc.</font></p>

                    <p style="MARGIN-TOP: 0in; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 181pt; TEXT-INDENT: -181pt; TEXT-ALIGN: left"><font size="2">Invesco Aim Capital Management, Inc.</font></p>

                    <p style="MARGIN-TOP: 0in; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 109pt; TEXT-INDENT: -109pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>

                <td width="32">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>

            <tr>
                <td width="16">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>

                <td style="BORDER-RIGHT: gray 1pt solid; PADDING-RIGHT: 6pt; BORDER-TOP: medium none; PADDING-LEFT: 6pt; PADDING-BOTTOM: 0in; BORDER-LEFT: gray 1pt solid; PADDING-TOP: 0in; BORDER-BOTTOM: gray 1pt solid" valign="top" nowrap colspan="2">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><b><font size="3">2</font></b></p>
                </td>

                <td style="BORDER-RIGHT: black 1pt solid; PADDING-RIGHT: 6pt; BORDER-TOP: medium none; PADDING-LEFT: 6pt; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: black 1pt solid" valign="top" nowrap colspan="4">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*</font></p>

                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;(a)</font></p>

                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0.5in; TEXT-ALIGN: left"><font size="2">(b)</font></p>
                </td>

                <td width="32">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>

            <tr>
                <td width="16">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>

                <td style="BORDER-RIGHT: gray 1pt solid; PADDING-RIGHT: 6pt; BORDER-TOP: medium none; PADDING-LEFT: 6pt; PADDING-BOTTOM: 0in; BORDER-LEFT: gray 1pt solid; PADDING-TOP: 0in; BORDER-BOTTOM: gray 1pt solid" valign="top" nowrap colspan="2">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><b><font size="3">3</font></b></p>
                </td>

                <td style="BORDER-RIGHT: black 1pt solid; PADDING-RIGHT: 6pt; BORDER-TOP: medium none; PADDING-LEFT: 6pt; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: black 1pt solid" valign="top" nowrap colspan="4">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">SEC USE ONLY</font></p>

                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>

                <td width="32">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>

            <tr>
                <td width="16">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>

                <td style="BORDER-RIGHT: gray 1pt solid; PADDING-RIGHT: 6pt; BORDER-TOP: medium none; PADDING-LEFT: 6pt; PADDING-BOTTOM: 0in; BORDER-LEFT: gray 1pt solid; PADDING-TOP: 0in; BORDER-BOTTOM: gray 1pt solid" valign="top" nowrap colspan="2">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><b><font size="3">4</font></b></p>
                </td>

                <td style="BORDER-RIGHT: black 1pt solid; PADDING-RIGHT: 6pt; BORDER-TOP: medium none; PADDING-LEFT: 6pt; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: black 1pt solid" valign="top" nowrap colspan="4">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">CITIZENSHIP OR PLACE OF ORGANIZATION</font></p>

                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>

                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">Invesco Ltd.-Bermunda</font></p>

                    <p style="MARGIN-TOP: 0in; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 181pt; TEXT-INDENT: -181pt; TEXT-ALIGN: left"><font size="2">Invesco PowerShares Capital Management LLC - US</font></p>

                    <p style="MARGIN-TOP: 0in; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 181pt; TEXT-INDENT: -181pt; TEXT-ALIGN: left"><font size="2">Invesco Aim Advisors, Inc. - US</font></p>

                    <p style="MARGIN-TOP: 0in; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 181pt; TEXT-INDENT: -181pt; TEXT-ALIGN: left"><font size="2">Invesco Aim Capital Management, Inc. - US</font></p>

                    <p style="MARGIN-TOP: 0in; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 181pt; TEXT-INDENT: -181pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>

                <td width="32">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>

            <tr style="page-break-inside: avoid">
                <td width="16">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>

                <td style="BORDER-RIGHT: gray 1pt solid; PADDING-RIGHT: 6pt; BORDER-TOP: medium none; PADDING-LEFT: 6pt; PADDING-BOTTOM: 0in; BORDER-LEFT: gray 1pt solid; PADDING-TOP: 0in; BORDER-BOTTOM: gray 1pt solid" valign="top" nowrap colspan="3" rowspan="4">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center">&nbsp;</p>

                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center">&nbsp;</p>

                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><font size="2">NUMBER OF</font></p>

                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><font size="2">SHARES</font></p>

                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><font size="2">BENEFICIALLY</font></p>

                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><font size="2">OWNED BY</font></p>

                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><font size="2">EACH</font></p>

                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><font size="2">REPORTING</font></p>

                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><font size="2">PERSON</font></p>

                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><font size="2">WITH</font></p>
                </td>

                <td style="BORDER-RIGHT: black 1pt solid; PADDING-RIGHT: 6pt; BORDER-TOP: medium none; PADDING-LEFT: 6pt; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: black 1pt solid" valign="top" nowrap width="66">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><b><font size="3">5</font></b></p>
                </td>

                <td style="BORDER-RIGHT: black 1pt solid; PADDING-RIGHT: 6pt; BORDER-TOP: medium none; PADDING-LEFT: 6pt; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: black 1pt solid" valign="top" nowrap colspan="2">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">SOLE VOTING POWER</font></p>

                    <p style="MARGIN-TOP: 0in; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 37pt; TEXT-INDENT: -37pt; TEXT-ALIGN: left"><font size="2">Invesco PowerShares Capital Management LLC &ndash; 834,980</font></p>

                    <p style="MARGIN-TOP: 0in; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 37pt; TEXT-INDENT: -37pt; TEXT-ALIGN: left"><font size="2">Invesco Aim Advisors, Inc. &ndash; 160,183</font></p>

                    <p style="MARGIN-TOP: 0in; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 37pt; TEXT-INDENT: -37pt; TEXT-ALIGN: left"><font size="2">Invesco Aim Capital Management, Inc. &ndash; 85,777</font></p>

                    <p style="MARGIN-TOP: 0in; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 37pt; TEXT-INDENT: -37pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>

                <td width="32">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>

            <tr style="page-break-inside: avoid">
                <td width="16">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>

                <td style="BORDER-RIGHT: black 1pt solid; PADDING-RIGHT: 6pt; BORDER-TOP: medium none; PADDING-LEFT: 6pt; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: black 1pt solid" valign="top" nowrap width="66">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><b><font size="3">6</font></b></p>
                </td>

                <td style="BORDER-RIGHT: black 1pt solid; PADDING-RIGHT: 6pt; BORDER-TOP: medium none; PADDING-LEFT: 6pt; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: black 1pt solid" valign="top" nowrap colspan="2">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">SHARED VOTING POWER</font></p>

                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>

                    <p style="MARGIN-TOP: 0in; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 37pt; TEXT-INDENT: -28pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>

                <td width="32">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>

            <tr style="page-break-inside: avoid">
                <td width="16">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>

                <td style="BORDER-RIGHT: black 1pt solid; PADDING-RIGHT: 6pt; BORDER-TOP: medium none; PADDING-LEFT: 6pt; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: black 1pt solid" valign="top" nowrap width="66">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><b><font size="3">7</font></b></p>
                </td>

                <td style="BORDER-RIGHT: black 1pt solid; PADDING-RIGHT: 6pt; BORDER-TOP: medium none; PADDING-LEFT: 6pt; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: black 1pt solid" valign="top" nowrap colspan="2">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">SOLE DISPOSITIVE POWER</font></p>

                    <p style="MARGIN-TOP: 0in; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 37pt; TEXT-INDENT: -37pt; TEXT-ALIGN: left"><font size="2">Invesco PowerShares Capital Management LLC &ndash; 834,980</font></p>

                    <p style="MARGIN-TOP: 0in; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 37pt; TEXT-INDENT: -37pt; TEXT-ALIGN: left"><font size="2">Invesco Aim Advisors, Inc. &ndash; 160,183</font></p>

                    <p style="MARGIN-TOP: 0in; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 37pt; TEXT-INDENT: -37pt; TEXT-ALIGN: left"><font size="2">Invesco Aim Capital Management, Inc. &ndash; 85,777</font></p>

                    <p style="MARGIN-TOP: 0in; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 37pt; TEXT-INDENT: -37pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>

                <td width="32">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>

            <tr style="page-break-inside: avoid">
                <td width="16">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>

                <td style="BORDER-RIGHT: black 1pt solid; PADDING-RIGHT: 6pt; BORDER-TOP: medium none; PADDING-LEFT: 6pt; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: black 1pt solid" valign="top" nowrap width="66">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><b><font size="3">8</font></b></p>
                </td>

                <td style="BORDER-RIGHT: black 1pt solid; PADDING-RIGHT: 6pt; BORDER-TOP: medium none; PADDING-LEFT: 6pt; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: black 1pt solid" valign="top" nowrap colspan="2">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">SHARED DISPOSITIVE POWER</font></p>

                    <p style="MARGIN-TOP: 0in; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 37pt; TEXT-INDENT: -1pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>

                <td width="32">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>

            <tr>
                <td width="16">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>

                <td style="BORDER-RIGHT: gray 1pt solid; PADDING-RIGHT: 6pt; BORDER-TOP: medium none; PADDING-LEFT: 6pt; PADDING-BOTTOM: 0in; BORDER-LEFT: gray 1pt solid; PADDING-TOP: 0in; BORDER-BOTTOM: gray 1pt solid" valign="top" nowrap width="59">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><b><font size="3">9</font></b></p>
                </td>

                <td style="BORDER-RIGHT: black 1pt solid; PADDING-RIGHT: 6pt; BORDER-TOP: medium none; PADDING-LEFT: 6pt; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: black 1pt solid" valign="top" nowrap colspan="5">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON</font></p>

                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>

                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">1,080,940</font></p>
                </td>

                <td width="32">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>

            <tr>
                <td width="16">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>

                <td style="BORDER-RIGHT: gray 1pt solid; PADDING-RIGHT: 6pt; BORDER-TOP: medium none; PADDING-LEFT: 6pt; PADDING-BOTTOM: 0in; BORDER-LEFT: gray 1pt solid; PADDING-TOP: 0in; BORDER-BOTTOM: gray 1pt solid" valign="top" nowrap width="59">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><b><font size="3">10</font></b></p>
                </td>

                <td style="BORDER-RIGHT: black 1pt solid; PADDING-RIGHT: 6pt; BORDER-TOP: medium none; PADDING-LEFT: 6pt; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: black 1pt solid" valign="top" nowrap colspan="5">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*</font></p>

                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>

                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">N/A</font></p>
                </td>

                <td width="32">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>

            <tr>
                <td width="16">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>

                <td style="BORDER-RIGHT: gray 1pt solid; PADDING-RIGHT: 6pt; BORDER-TOP: medium none; PADDING-LEFT: 6pt; PADDING-BOTTOM: 0in; BORDER-LEFT: gray 1pt solid; PADDING-TOP: 0in; BORDER-BOTTOM: gray 1pt solid" valign="top" nowrap width="59">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><b><font size="3">11</font></b></p>
                </td>

                <td style="BORDER-RIGHT: black 1pt solid; PADDING-RIGHT: 6pt; BORDER-TOP: medium none; PADDING-LEFT: 6pt; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: black 1pt solid" valign="top" nowrap colspan="5">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9</font></p>

                    <p style="MARGIN-TOP: 0in; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 108.95pt; TEXT-INDENT: -108.95pt; TEXT-ALIGN: left"><font size="2">11.8%</font></p>
                </td>

                <td width="32">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>

            <tr>
                <td width="16">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>

                <td style="BORDER-RIGHT: gray 1pt solid; PADDING-RIGHT: 6pt; BORDER-TOP: medium none; PADDING-LEFT: 6pt; PADDING-BOTTOM: 0in; BORDER-LEFT: gray 1pt solid; PADDING-TOP: 0in; BORDER-BOTTOM: gray 1pt solid" valign="top" nowrap width="59">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><b><font size="3">12</font></b></p>
                </td>

                <td style="BORDER-RIGHT: black 1pt solid; PADDING-RIGHT: 6pt; BORDER-TOP: medium none; PADDING-LEFT: 6pt; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: black 1pt solid" valign="top" nowrap colspan="5">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">TYPE OF REPORTING PERSON*</font></p>

                    <p style="MARGIN-TOP: 0in; MARGIN-BOTTOM: 2.7pt; MARGIN-LEFT: 108.95pt; TEXT-INDENT: -72.2pt; TEXT-ALIGN: left"><font size="2">IA, HC. See Items 2 and 3 of this statement</font></p>
                </td>

                <td width="32">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>

            <tr>
                <td width="16">
                </td>

                <td width="59">
                </td>

                <td width="3">
                </td>

                <td width="99">
                </td>

                <td width="66">
                </td>

                <td width="154">
                </td>

                <td width="364">
                </td>

                <td width="32">
                </td>
            </tr>
        </table>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>
        <br>
        <hr align="center" width="100%" noshade size="2">

        <p style="PAGE-BREAK-BEFORE: always"></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><b><font size="2">Item 1(a). Name of Issuer:</font></b></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 12pt; MARGIN-LEFT: 1in; TEXT-INDENT: -1in; TEXT-ALIGN: left"><font size="2">Northwest Pipe Company</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 12pt; MARGIN-LEFT: 1in; TEXT-INDENT: -1in; TEXT-ALIGN: left"><b><font size="2">(b). Address of Issuer&rsquo;s Principal Executive Offices:</font></b></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="1">200 South West Market Street; Suite 1800; Portland, OR 97201; United States</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 12pt; MARGIN-LEFT: 1in; TEXT-INDENT: -1in; TEXT-ALIGN: left"><b><font size="2">Item 2(a). Name of Person Filing:</font></b></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 12pt; TEXT-ALIGN: left"><font size="2">Invesco Ltd.</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">In accordance with Securities and Exchange Commission Release</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">No. 34-39538 (January 12, 1998), this statement on Schedule</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">13G or amendment thereto is being filed by Invesco Ltd.</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">("Invesco"), a Bermuda Company, on behalf of itself and its</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">subsidiaries listed in Item 4 of the cover of this statement</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Invesco through such subsidiaries provides investment</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">management services to institutional and individual investors</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">worldwide.</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 1in; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Executive officers and directors of Invesco or its</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">subsidiaries may beneficially own shares of the securities of</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">the issuer to which this statement relates (the "Shares"), and</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">such Shares are not reported in this statement. Invesco and</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">its subsidiaries disclaim beneficial ownership of Shares</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">beneficially owned by any of their executive officers and</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">directors. Each of Invesco&rsquo;s direct and indirect subsidiaries</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">also disclaim beneficial ownership of Shares beneficially</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">owned by Invesco and any other subsidiary</font><font size="1">.</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 1in; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 12pt; MARGIN-LEFT: 1in; TEXT-INDENT: -1in; TEXT-ALIGN: left"><b><font size="2">(b). Address of Principal Business Office or, if none, residence of filing person:</font></b></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 12pt; TEXT-ALIGN: left"><font size="2">1555 Peachtree Street NE; Atlanta, GA 30309; United States</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 12pt; MARGIN-LEFT: 1in; TEXT-INDENT: -1in; TEXT-ALIGN: left"><b><font size="2">(c). Citizenship of filing person:</font></b></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 12pt; TEXT-ALIGN: left"><font size="2">See the response to Item 2(a) of this statement</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 12pt; MARGIN-LEFT: 0.5in; TEXT-INDENT: -0.5in; TEXT-ALIGN: left"><b><font size="2">(d). Title of Classes of Securities:</font></b></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 12pt; TEXT-ALIGN: left"><font size="2">Common Stock .01 par value per share</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 12pt; MARGIN-LEFT: 0.5in; TEXT-INDENT: -0.5in; TEXT-ALIGN: left"><b><font size="2">(e). CUSIP Numbers:</font></b></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 12pt; TEXT-ALIGN: left"><font size="2">667746101</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 1in; TEXT-INDENT: -1in; TEXT-ALIGN: left"></p>
        <hr align="center" width="100%" noshade size="2">

        <p style="PAGE-BREAK-BEFORE: always"></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><b><font size="2">Item 3.</font></b> <font size="2">If this statement is filed pursuant to ss240.13d-1(b) or</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">240.13d-2(b) or (c), check whether the person filing is a:</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0.5in; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">(e)</font> <font face="Wingdings">x</font> <font size="2">An investment adviser in accordance with section 240.13d-1(b)(1)(ii)(E)</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0.5in; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">(g)</font> <font face="Wingdings">x</font> <font size="2">A parent holding company or control person in accordance with section 240.13d-1(b)(1)(ii)(G)</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0.5in; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">As noted in Item 2 above, Invesco is making this filing on</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">behalf of its subsidiaries listed herein. Each of these</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">entities is either an investment adviser registered with the</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">United States Securities and Exchange Commission under Section 203</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">of the Investment Advisers Act of 1940, as amended, or under</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">similar laws of other jurisdictions. Invesco is a holding</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">company.</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><b><font size="2">Item 4.</font></b> <font size="2">Ownership:</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Please see responses to Items 5-8 on the cover of this</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">statement, which are incorporated herein by reference.</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><b><font size="2">Item 5.</font></b> <font size="2">Ownership of Five Percent or Less of a Class:</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-INDENT: 0.03in; TEXT-ALIGN: left"><font size="2">If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2"><font face="Wingdings">o</font></font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><b><font size="2">Item 6</font></b><font size="2">. Ownership of More than Five Percent on Behalf of Another Person:</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">N/A</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2"><b><font size="2">Item 7.</font></b> <font size="2">Identification and Classification of the Subsidiary Which Acquired the Security Being</font></font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 1.2in; TEXT-INDENT: -1.2in; TEXT-ALIGN: left"><font size="2">reported on By the Parent Holding Company:</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 1.2in; TEXT-INDENT: -1.2in; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 1.2in; TEXT-INDENT: -1.2in; TEXT-ALIGN: left"><font size="2">Please see Item 3 of this statement, which is incorporated herein by reference.</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><b><font size="2">Item 8.</font></b> <font size="2">Identification and Classification of Members of the Group:</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">N/A</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><b><font size="2">Item 9.</font></b> <font size="2">Notice of Dissolution of a Group:</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">N/A</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"></p>
        <hr align="center" width="100%" noshade size="2">

        <p style="PAGE-BREAK-BEFORE: always"></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><b><font size="2">Item 10.</font></b> <font size="2">Certification:</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0.5in; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">By signing below I certify that, to the best of my knowledge</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">and belief, the securities referred to above were acquired and</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">are held in the ordinary course of business and were not</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">acquired and are not held for the purpose of or with the</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">effect of changing or influencing the control of the issuer of</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">the securities and were not acquired and are not held in</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">connection with or as a participant in any transaction having</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">that purpose or effect.</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0.5in; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Signature:</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">After reasonable inquiry and to the best of my knowledge and</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">belief, I certify that the information set forth in this</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">statement is true, complete and correct.</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><u><font size="2">01/08/2009</font></u></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Date</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Invesco Ltd.</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <table style="BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="662" border="0">
            <tr>
                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">By:&nbsp; <u><font size="2">/s/ Lisa Brinkley</font></u></font></p>
                </td>

                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>
        </table>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Lisa Brinkley</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Global Compliance Director</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>
    </body>
</html>

</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>2
<FILENAME>jointfilingagr010909.htm
<DESCRIPTION>JOINT FILING AGREEMENT
<TEXT>
<html>
    <head>
        <title></title>
    </head>

    <body style="FONT-FAMILY: 'Times New Roman'" bgcolor="#ffffff">
        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><u><font size="2">JOINT FILING AGREEMENT</font></u></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">In accordance with Rule 13d-1(k)(l) under the Securities Exchange Act of 1934,</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">as amended, the undersigned hereby agree to the joint filing of the attached</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Schedule 13G, and any and all amendments thereto, and expressly authorize</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Invesco Ltd., as the ultimate parent company of each of its undersigned</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">subsidiaries, to file such Schedule 13G, and any and all amendments thereto, on</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">behalf of each of them.</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Dated: 01/08/09</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Invesco Ltd.</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">By:</font> <u><font size="2">/s/ Lisa Brinkley</font></u></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Name: Lisa Brinkley</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Title: Global Compliance Director</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Invesco Aim Advisors, Inc.</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <table style="BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="662" border="0">
            <tr>
                <td valign="top" nowrap width="221">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="1"><font size="2">By:&nbsp; <u><font size="2">/s/ Todd L. Spillane</font></u></font></font></p>
                </td>

                <td valign="top" nowrap width="221">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>

                <td valign="top" nowrap width="221">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>
        </table>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Name: Todd L. Spillane</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Title: Chief Compliance Officer</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Invesco Aim Capital Management, Inc.</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <table style="BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="662" border="0">
            <tr>
                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">By:&nbsp; <u><font size="2">/s/ Todd L. Spillane</font></u></font></p>
                </td>

                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>
        </table>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Name: Todd L. Spillane</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Title: Chief Compliance Officer</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Invesco Trimark , Ltd.</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <table style="BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="662" border="0">
            <tr>
                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">By:&nbsp; <u>/s/ Wayne Bolton</u></font></p>
                </td>

                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>
        </table>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Name: Wayne Bolton</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Title: Vice President, Compliance &amp; Chief Compliance Officer</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Invesco Aim Private Asset Management, Inc.</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <table style="BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="662" border="0">
            <tr>
                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">By:&nbsp; <u><font size="2">/s/ Todd L. Spillane</font></u></font></p>
                </td>

                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>
        </table>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Name: Todd L. Spillane</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Title: Chief Compliance Officer</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Invesco National Trust Company</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <table style="BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="662" border="0">
            <tr>
                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">By:&nbsp; <u><font size="2">/s/ Kevin Lyman</font></u></font></p>
                </td>

                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>
        </table>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Name: Kevin Lyman</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Title: Assistant General Counsel</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"></p>
        <hr align="center" width="100%" noshade size="2">
        <br>
        <br>

        <p style="PAGE-BREAK-BEFORE: always"></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Invesco Hong Kong Limited</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <table style="BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="662" border="0">
            <tr>
                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">By:&nbsp; <u><font size="2">/s/ Asha Balachandra</font></u></font></p>
                </td>

                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>
        </table>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Name: Asha Balachandra</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Title: Reg. Head of Legal AP</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Invesco Asset Management Deutschland GmbH</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <table style="BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="662" border="0">
            <tr>
                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">By:&nbsp; <u><font size="2">/s/ Stephanie Ehrenfried</font></u></font></p>
                </td>

                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>
        </table>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Name: Stephanie Ehrenfried</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Title: Head of Legal CE</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Invesco Asset Management Limited</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <table style="BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="662" border="0">
            <tr>
                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">By</font><u><font size="2">:&nbsp; <u><font size="2">/s/ Nick Styman</font></u></font></u></p>
                </td>

                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>
        </table>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Name: Nick Styman</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Title: Director of European Compliance</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Invesco Asset Management S.A.</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <table style="BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="662" border="0">
            <tr>
                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">By:&nbsp; <u><font size="2">/s/ Patrick Riviere</font></u></font></p>
                </td>

                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>
        </table>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Name: Patrick Riviere</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Title: Chief Regional Officer</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Invesco Asset Management Oesterreich GmbH</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <table style="BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="662" border="0">
            <tr>
                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">By:&nbsp; <u><font size="2">/s/ Thomas Kraus</font></u></font></p>
                </td>

                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>
        </table>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Name: Thomas Kraus</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Title: Head of Sales</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Invesco Global Asset Management (N.A.), Inc.</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <table style="BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="662" border="0">
            <tr>
                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">By:&nbsp; <u><font size="2">/s/ Jeffrey Kupor</font></u></font></p>
                </td>

                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>
        </table>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Name: Jeffrey Kupor</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Title: Head of Legal WW Institutional</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Invesco GT Management Company S.A.</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <table style="BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="662" border="0">
            <tr>
                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">By:&nbsp; <u><font size="2">/s/ Nick Styman</font></u></font></p>
                </td>

                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>
        </table>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Name: Nick Styman</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Title: Director of European Compliance</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"></p>
        <hr align="center" width="100%" noshade size="2">
        <br>
        <br>

        <p style="PAGE-BREAK-BEFORE: always"></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Invesco Institutional (N.A.), Inc.</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <table style="BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="662" border="0">
            <tr>
                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">By:&nbsp;&nbsp; <u><font size="2">/s/ Jeffrey Kupor</font></u></font></p>
                </td>

                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>
        </table>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Name: Jeffrey Kupor</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Title: Head of Legal WW Institutional</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Invesco Management S.A.</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <table style="BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="662" border="0">
            <tr>
                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">By: <u><font size="2">/s/ Alain Gerbaldi</font></u></font></p>
                </td>

                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>
        </table>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Name: Alain Gerbaldi</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Title: Head of Performance Measurement &amp; Risk Analysis</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Invesco Maximum Income Management S.A.</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <table style="BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="662" border="0">
            <tr>
                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">By</font><u><font size="2">:&nbsp; <u><font size="2">/s/ Alain Gerbaldi</font></u></font></u></p>
                </td>

                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>
        </table>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Name: Alain Gerbaldi</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Title: Head of Performance Measurement &amp; Risk Analysis</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Invesco Private Capital, Inc.</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <table style="BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="662" border="0">
            <tr>
                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">By:&nbsp; <u><font size="2">/s/ Jeffrey Kupor</font></u></font></p>
                </td>

                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>
        </table>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Name: Jeffrey Kupor</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Title: Head of Legal WW Institutional</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Invesco Senior Secured Management, Inc.</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <table style="BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="662" border="0">
            <tr>
                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">By:&nbsp; <u><font size="2">/s/ Jeffrey Kupor</font></u></font></p>
                </td>

                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>
        </table>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Name: Jeffrey Kupor</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Title: Head of Legal WW Institutional</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Invesco Taiwan Limited</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <table style="BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="662" border="0">
            <tr>
                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">By:&nbsp; <u><font size="2">/s/ Asha Balachandra</font></u></font></p>
                </td>

                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>
        </table>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Name: Asha Balachandra</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Title: Reg. Head of Legal, AP</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Invesco Asset Management (Japan) Limited</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <table style="BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="662" border="0">
            <tr>
                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">By:&nbsp;&nbsp; <font size="2">/s/ Asha Balachandra</font></font></p>
                </td>

                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>
        </table>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Name: Asha Balachandra</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Title: Reg. Head of Legal, AP</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Invesco Asset Management Ireland Limited</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <table style="BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="662" border="0">
            <tr>
                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">By: <u><font size="2">/s/ Alain Gerbaldi</font></u></font></p>
                </td>

                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>
        </table>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Name: Alain Gerbaldi</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Title: Head of Performance Measurement &amp; Risk Analysis</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"></p>
        <hr align="center" width="100%" noshade size="2">
        <br>
        <br>

        <p style="PAGE-BREAK-BEFORE: always"></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Invesco Kapitalanlagegesellschaft mbH</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <table style="BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="662" border="0">
            <tr>
                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">By:&nbsp; <u><font size="2">/s/ Stephanie Ehrenfried</font></u></font></p>
                </td>

                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>
        </table>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Name: Stephanie Ehrenfried</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Title: Head of Legal CE</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Invesco PowerShares Capital Management LLC</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <table style="BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="662" border="0">
            <tr>
                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">By: <u><font size="2">/s/ Kevin Gustafson</font></u></font></p>
                </td>

                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>
        </table>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Name: Kevin Gustafson</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Title: General Counsel, COO &amp; CCO</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Stein Roe Investment Counsel, Inc.</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <table style="BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" width="662" border="0">
            <tr>
                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><font size="2">By:&nbsp; <u><font size="2">/s/ Greg Campbell</font></u></font></p>
                </td>

                <td valign="top" nowrap width="331">
                    <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left">&nbsp;</p>
                </td>
            </tr>
        </table>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Name: Greg Campbell</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><font size="2">Title: General Counsel</font></p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>

        <p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left">&nbsp;</p>
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</TEXT>
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