<SEC-DOCUMENT>0001013594-20-000052.txt : 20200124
<SEC-HEADER>0001013594-20-000052.hdr.sgml : 20200124
<ACCEPTANCE-DATETIME>20200124170629
ACCESSION NUMBER:		0001013594-20-000052
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20200124
DATE AS OF CHANGE:		20200124

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TRANSALTA CORP
		CENTRAL INDEX KEY:			0001144800
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC SERVICES [4911]
		IRS NUMBER:				000000000
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-79749
		FILM NUMBER:		20546275

	BUSINESS ADDRESS:	
		STREET 1:		110 12TH AVE SW BOX 1900 STATION M
		STREET 2:		CALGARY ALBERTA T2P 2MI
		CITY:			CALGARY
		STATE:			A0
		ZIP:			T2P2M1
		BUSINESS PHONE:		403-267-4724

	MAIL ADDRESS:	
		STREET 1:		110-12TH AVENUE SW
		CITY:			CALGARY ALBERTA CANADA
		STATE:			A0
		ZIP:			T2P2M1

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Mangrove Partners Master Fund, Ltd.
		CENTRAL INDEX KEY:			0001569227
		IRS NUMBER:				981083428
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		MAPLES CORP. SVCS, PO BOX 309
		STREET 2:		UGLAND HOUSE, S. CHURCH STREET
		CITY:			GEORGE TOWN
		STATE:			E9
		ZIP:			KY1-1104
		BUSINESS PHONE:		2128979537

	MAIL ADDRESS:	
		STREET 1:		645 MADISON AVE, 14 FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>transalta13ga1-011520.htm
<DESCRIPTION>AMENDMENT NO. 1 TO THE SCHEDULE 13G
<TEXT>
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    <div style="text-align: center; line-height: 11.4pt; font-weight: bold;">SECURITIES AND EXCHANGE COMMISSION</div>
    <div style="text-align: center; line-height: 11.4pt; margin-bottom: 12pt; font-weight: bold;">WASHINGTON, D.C.&#160; 20549</div>
    <div style="text-align: center; line-height: 11.4pt; font-weight: bold;">SCHEDULE 13G</div>
    <div style="text-align: center; line-height: 11.4pt; margin-bottom: 12pt; font-weight: bold;">(RULE 13D - 102)</div>
    <div style="text-align: center; line-height: 11.4pt; margin-bottom: 12pt; font-weight: bold;">INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO 13d-1(b), (c) AND (d) AND AMENDMENTS
      THERETO FILED PURSUANT TO 13d-2(b)</div>
    <div style="text-align: center; line-height: 11.4pt; margin-bottom: 12pt; font-weight: bold;">(Amendment No. 1)*</div>
    <div style="text-align: center; line-height: 11.4pt;"><u>TransAlta Corporation</u></div>
    <div style="text-align: center; line-height: 11.4pt; margin-bottom: 12pt;">(Name of Issuer)</div>
    <div style="text-align: center; line-height: 11.4pt;"><u>Common Stock, no par value</u></div>
    <div style="text-align: center; line-height: 11.4pt; margin-bottom: 12pt;">(Title of Class of Securities)</div>
    <div style="text-align: center; line-height: 11.4pt;"><u>89346D107</u></div>
    <div style="text-align: center; line-height: 11.4pt; margin-bottom: 12pt;">(CUSIP Number)</div>
    <div style="text-align: center; line-height: 11.4pt;"><u>January 15, 2020</u></div>
    <div style="text-align: center; line-height: 11.4pt; margin-bottom: 12pt;">(Date of Event which Requires Filing of this Statement)</div>
    <div style="text-align: justify; line-height: 11.4pt; margin-bottom: 12pt;">Check the appropriate box to designate the rule pursuant to which this Schedule is filed:</div>
    <div style="text-align: center; line-height: 11.4pt; margin-bottom: 12pt;">[ ]<font id="TRGRRTFtoHTMLTab" style="text-indent: 0px; font-size: 5.14pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;</font>Rule 13d-1(b)</div>
    <div style="text-align: center; line-height: 11.4pt; margin-bottom: 12pt;">[x]<font id="TRGRRTFtoHTMLTab" style="text-indent: 0px; font-size: 5.14pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;</font>Rule 13d-1(c)</div>
    <div style="text-align: center; line-height: 11.4pt; margin-bottom: 12pt;">[ ]<font id="TRGRRTFtoHTMLTab" style="text-indent: 0px; font-size: 5.14pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;</font>Rule 13d-1(d)</div>
    <div style="text-align: justify; line-height: 11.4pt; margin-bottom: 12pt;">*The remainder of this cover page shall be filled out for a reporting person&#8217;s initial filing on this form with
      respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.</div>
    <div style="text-align: justify; line-height: 11.4pt; margin-bottom: 12pt;">The information required on the remainder of this cover page shall not be deemed to be &#8220;filed&#8221; for the purpose of
      Section 18 of the Securities Exchange Act of 1934 or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, <font style="font-style: italic;">see the</font>&#160;<font style="font-style: italic;">Notes</font>).</div>
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        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">1.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">NAMES OF REPORTING PERSONS<br>
              I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="margin-left: 46.45pt; line-height: 11.4pt;">Mangrove Partners Master Fund, Ltd.</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">2.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
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            <div style="line-height: 11.4pt;">(a)&#160;&#160;&#160;&#160;[x]</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">(b)&#160;&#160;&#160;&#160;[ ]</div>
          </td>
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        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">3.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">SEC USE ONLY</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">4.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">CITIZENSHIP OR PLACE OF ORGANIZATION</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="margin-left: 46.45pt; line-height: 11.4pt;">Cayman Islands</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 100%; vertical-align: top;" colspan="2">
            <div style="line-height: 11.4pt;">NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">5.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">SOLE VOTING POWER</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="margin-left: 46.45pt; line-height: 11.4pt;">0</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">6.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">SHARED VOTING POWER</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="margin-left: 46.45pt; line-height: 11.4pt;">13,214,865</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">7.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">SOLE DISPOSITIVE POWER</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="margin-left: 46.45pt; line-height: 11.4pt;">0</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">8.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">SHARED DISPOSITIVE POWER</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="margin-left: 46.45pt; line-height: 11.4pt;">13,214,865</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">9.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="margin-left: 46.45pt; line-height: 11.4pt;">13,214,865</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">10.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)<br>
              EXCLUDES CERTAIN SHARES&#160;&#160;&#160;&#160;[ ]</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">11.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="margin-left: 46.45pt; line-height: 11.4pt; color: #000000;">4.6%</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">12.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">TYPE OF REPORTING PERSON</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="margin-left: 46.45pt; line-height: 11.4pt;">OO</div>
          </td>
        </tr>

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    <div style="line-height: 11.4pt; margin-bottom: 12pt;"><br style="line-height: 11.4pt;">
    </div>
    <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
      <div id="DSPFPageBreak" style="page-break-after:always;">
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    <div style="line-height: 11.4pt; margin-bottom: 12pt;"><br style="line-height: 11.4pt;">
    </div>
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        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">1.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">NAMES OF REPORTING PERSONS<br>
              I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="margin-left: 46.45pt; line-height: 11.4pt; color: #000000;">Mangrove Partners</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">2.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">(a)&#160;&#160;&#160;&#160;[x]</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">(b)&#160;&#160;&#160;&#160;[ ]</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">3.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">SEC USE ONLY</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">4.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">CITIZENSHIP OR PLACE OF ORGANIZATION</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="margin-left: 46.45pt; line-height: 11.4pt; color: #000000;">Cayman Islands</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 100%; vertical-align: top;" colspan="2">
            <div style="line-height: 11.4pt;">NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">5.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">SOLE VOTING POWER</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="margin-left: 46.45pt; line-height: 11.4pt;">0</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">6.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">SHARED VOTING POWER</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="margin-left: 46.45pt; line-height: 11.4pt;">13,214,865</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">7.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">SOLE DISPOSITIVE POWER</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="margin-left: 46.45pt; line-height: 11.4pt;">0</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">8.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">SHARED DISPOSITIVE POWER</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="margin-left: 46.45pt; line-height: 11.4pt;">13,214,865</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">9.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="margin-left: 46.45pt; line-height: 11.4pt;">13,214,865</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">10.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)<br>
              EXCLUDES CERTAIN SHARES&#160;&#160;&#160;&#160;[ ]</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">11.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="margin-left: 46.45pt; line-height: 11.4pt; color: #000000;">4.6%</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">12.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">TYPE OF REPORTING PERSON</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="margin-left: 46.45pt; line-height: 11.4pt;">OO</div>
          </td>
        </tr>

    </table>
    <div style="line-height: 11.4pt; margin-bottom: 12pt;"><br style="line-height: 11.4pt;">
    </div>
    <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
      <div id="DSPFPageBreak" style="page-break-after:always;">
        <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
    </div>
    <div style="line-height: 11.4pt; margin-bottom: 12pt;"><br style="line-height: 11.4pt;">
    </div>
    <table cellspacing="0" cellpadding="0" id="zbc072f83567e4350b961dac4efc826fc" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; border-collapse: collapse; text-align: left; color: #000000;">

        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">1.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">NAMES OF REPORTING PERSONS<br>
              I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="margin-left: 46.45pt; line-height: 11.4pt; color: #000000;">Nathaniel August</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">2.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">(a)&#160;&#160;&#160;&#160;[x]</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">(b)&#160;&#160;&#160;&#160;[ ]</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">3.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">SEC USE ONLY</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">4.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">CITIZENSHIP OR PLACE OF ORGANIZATION</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="margin-left: 46.45pt; line-height: 11.4pt; color: #000000;">United States</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 100%; vertical-align: top;" colspan="2">
            <div style="line-height: 11.4pt;">NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">5.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">SOLE VOTING POWER</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="margin-left: 46.45pt; line-height: 11.4pt;">0</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">6.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">SHARED VOTING POWER</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="margin-left: 46.45pt; line-height: 11.4pt;">13,214,865</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">7.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">SOLE DISPOSITIVE POWER</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="margin-left: 46.45pt; line-height: 11.4pt;">0</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">8.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">SHARED DISPOSITIVE POWER</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="margin-left: 46.45pt; line-height: 11.4pt;">13,214,865</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">9.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="margin-left: 46.45pt; line-height: 11.4pt;">13,214,865</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">10.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)<br>
              EXCLUDES CERTAIN SHARES&#160;&#160;&#160;&#160;[ ]</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">11.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="margin-left: 46.45pt; line-height: 11.4pt; color: #000000;">4.6%</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">
            <div style="line-height: 11.4pt;">12.</div>
          </td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="line-height: 11.4pt;">TYPE OF REPORTING PERSON</div>
          </td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 9.1%; vertical-align: top;">&#160;</td>
          <td style="width: 90.9%; vertical-align: top;">
            <div style="margin-left: 46.45pt; line-height: 11.4pt;">IN, HC</div>
          </td>
        </tr>

    </table>
    <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
      <div id="DSPFPageBreak" style="page-break-after:always;">
        <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
    </div>
    <div style="line-height: 11.4pt; margin-bottom: 12pt;"><br style="line-height: 11.4pt;">
    </div>
    <div style="line-height: 11.4pt; margin-bottom: 12pt;">
      <div>
        <table cellspacing="0" cellpadding="0" id="zc90f3c25e84e46198c7aaebafdc8938f" class="DSPFListTable" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt; vertical-align: top; align: right; font-weight: bold;">Item 1(a).</td>
              <td style="width: auto; vertical-align: top;">
                <div style="font-weight: bold;">Name of Issuer:</div>
              </td>
            </tr>

        </table>
      </div>
    </div>
    <div style="text-align: justify; margin-left: 36pt; line-height: 11.4pt; margin-bottom: 12pt;">TransAlta Corporation (&#8220;Issuer&#8221;)</div>
    <div style="line-height: 11.4pt; margin-bottom: 12pt;">
      <div>
        <table cellspacing="0" cellpadding="0" id="z655a325958a44a2aac2bfd58a8f9239f" class="DSPFListTable" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt; vertical-align: top; align: right; font-weight: bold;">Item 1(b).</td>
              <td style="width: auto; vertical-align: top;">
                <div style="font-weight: bold;">Address of Issuer&#8217;s Principal Executive Offices:</div>
              </td>
            </tr>

        </table>
      </div>
    </div>
    <div style="margin-left: 36pt; line-height: 11.4pt; color: #000000;">110 - 12th Avenue S.W.</div>
    <div style="margin-left: 36pt; line-height: 11.4pt; color: #000000;">Box 1900, Station &#8220;M&#8221;</div>
    <div style="margin-left: 36pt; line-height: 11.4pt; color: #000000;">Calgary, Alberta, T2P 2M1</div>
    <div style="margin-left: 36pt; line-height: 11.4pt; color: #000000;">Canada</div>
    <div style="line-height: 11.4pt;"><br style="line-height: 11.4pt;">
    </div>
    <div style="line-height: 11.4pt; margin-bottom: 12pt;">
      <div>
        <table cellspacing="0" cellpadding="0" id="z6f36ed591f9b4a8a8282c26095255b80" class="DSPFListTable" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt; vertical-align: top; align: right; font-weight: bold;">Item 2(a).</td>
              <td style="width: auto; vertical-align: top;">
                <div style="font-weight: bold;">Name of Persons Filing:</div>
              </td>
            </tr>

        </table>
      </div>
    </div>
    <div style="text-align: justify; text-indent: 36pt; line-height: 11.4pt; margin-bottom: 12pt;">This Schedule 13G is being jointly filed by The Mangrove Partners Master Fund, Ltd. (the
      &#8220;Master Fund&#8221;), Mangrove Partners, and Nathaniel August (collectively, the &#8220;Reporting Persons&#8221;).</div>
    <div style="text-align: justify; text-indent: 36pt; line-height: 11.4pt; margin-bottom: 12pt;">Mangrove Partners serves as the investment manager of the Master Fund. Nathaniel August is the
      controlling person of Mangrove Partners.</div>
    <div style="text-align: justify; text-indent: 36pt; line-height: 11.4pt; margin-bottom: 12pt;">By virtue of these relationships, each of Mangrove Partners and Nathaniel August may be deemed
      to share voting and dispositive power with respect to the shares of Common Stock (as defined below) owned directly by the Master Fund.</div>
    <div style="line-height: 11.4pt; margin-bottom: 12pt;">
      <div>
        <table cellspacing="0" cellpadding="0" id="z2a403312ed164f5f9e42a512d6c17139" class="DSPFListTable" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt; vertical-align: top; align: right; font-weight: bold;">Item 2(b).</td>
              <td style="width: auto; vertical-align: top;">
                <div style="font-weight: bold;">Address of Principal Business Office or, if None, Residence:</div>
              </td>
            </tr>

        </table>
      </div>
    </div>
    <div style="text-align: justify; text-indent: 36pt; line-height: 11.4pt; margin-bottom: 12pt;">The principal business office of each of Mangrove Partners and Nathaniel August is 645 Madison
      Avenue, 14th Floor, New York, New York 10022.</div>
    <div style="text-align: justify; text-indent: 36pt; line-height: 11.4pt; margin-bottom: 12pt;">The principal business address of the Master Fund is c/o Maples Corporate Services, Ltd., PO
      Box 309, Ugland House, South Church Street, George Town, Grand Cayman, Cayman Islands KY1-1104.</div>
    <div style="line-height: 11.4pt; margin-bottom: 12pt;">
      <div>
        <table cellspacing="0" cellpadding="0" id="z60c3c5cf4ab2421ab32eaeb3499a0864" class="DSPFListTable" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt; vertical-align: top; align: right; font-weight: bold;">Item 2(c).</td>
              <td style="width: auto; vertical-align: top;">
                <div style="font-weight: bold;">Citizenship:</div>
              </td>
            </tr>

        </table>
      </div>
    </div>
    <div style="text-align: justify; text-indent: 36pt; line-height: 11.4pt; margin-bottom: 12pt;">Each of the Master Fund and Mangrove Partners is organized as a limited liability exempted
      company under the laws of the Cayman Islands. Nathaniel August is a citizen of the United States.</div>
    <div style="line-height: 11.4pt; margin-bottom: 12pt;">
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            <tr>
              <td style="width: 72pt; vertical-align: top; align: right; font-weight: bold;">Item 2(d).</td>
              <td style="width: auto; vertical-align: top;">
                <div style="font-weight: bold;">Title of Class of Securities:</div>
              </td>
            </tr>

        </table>
      </div>
    </div>
    <div style="text-align: justify; text-indent: 36pt; line-height: 11.4pt; margin-bottom: 12pt;">Common Stock, no par value (&#8220;Common Stock&#8221;).</div>
    <div style="line-height: 11.4pt; margin-bottom: 12pt;">
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        <table cellspacing="0" cellpadding="0" id="z6b011253ece2401ab24761ba83253a83" class="DSPFListTable" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt; vertical-align: top; align: right; font-weight: bold;">Item 2(e).</td>
              <td style="width: auto; vertical-align: top;">
                <div style="font-weight: bold;">CUSIP Number:</div>
              </td>
            </tr>

        </table>
      </div>
    </div>
    <div style="text-align: justify; text-indent: 36pt; line-height: 11.4pt; margin-bottom: 12pt; color: #000000;">89346D107</div>
    <div style="line-height: 11.4pt; margin-bottom: 12pt;">
      <div>
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            <tr>
              <td style="width: 72pt; vertical-align: top; align: right; font-weight: bold;">Item 3.</td>
              <td style="width: auto; vertical-align: top;">
                <div style="font-weight: bold;">If This Statement is Filed Pursuant to Rule 13d 1(b), or 13d-2(b) or (c), Check Whether the Person Filing is a:</div>
              </td>
            </tr>

        </table>
      </div>
    </div>
    <table cellspacing="0" cellpadding="0" id="zcc5636c4083f4c94bf2c91021e91ea81" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; border-collapse: collapse; text-align: left; color: #000000;">

        <tr>
          <td style="width: 4%; vertical-align: top;">&#160;</td>
          <td style="width: 4.76%; vertical-align: top;">
            <div style="text-align: center; line-height: 11.4pt;">(a)</div>
          </td>
          <td style="width: 3.81%; vertical-align: top;">
            <div style="text-align: justify; line-height: 11.4pt;">[ ]</div>
          </td>
          <td style="width: 87.43%; vertical-align: top;">
            <div style="text-align: justify; line-height: 11.4pt;">Broker or dealer registered under Section 15 of the Exchange Act.</div>
          </td>
        </tr>
        <tr>
          <td style="width: 4%; vertical-align: top;">&#160;</td>
          <td style="width: 4.76%; vertical-align: top;">&#160;</td>
          <td style="width: 3.81%; vertical-align: top;">&#160;</td>
          <td style="width: 87.43%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 4%; vertical-align: top;">&#160;</td>
          <td style="width: 4.76%; vertical-align: top;">
            <div style="text-align: center; line-height: 11.4pt;">(b)</div>
          </td>
          <td style="width: 3.81%; vertical-align: top;">
            <div style="text-align: justify; line-height: 11.4pt;">[ ]</div>
          </td>
          <td style="width: 87.43%; vertical-align: top;">
            <div style="text-align: justify; line-height: 11.4pt;">Bank as defined in Section 3(a)(6) of the Exchange Act.</div>
          </td>
        </tr>
        <tr>
          <td style="width: 4%; vertical-align: top;">&#160;</td>
          <td style="width: 4.76%; vertical-align: top;">&#160;</td>
          <td style="width: 3.81%; vertical-align: top;">&#160;</td>
          <td style="width: 87.43%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 4%; vertical-align: top;">&#160;</td>
          <td style="width: 4.76%; vertical-align: top;">
            <div style="text-align: center; line-height: 11.4pt;">(c)</div>
          </td>
          <td style="width: 3.81%; vertical-align: top;">
            <div style="text-align: justify; line-height: 11.4pt;">[ ]</div>
          </td>
          <td style="width: 87.43%; vertical-align: top;">
            <div style="text-align: justify; line-height: 11.4pt;">Insurance company defined in Section 3(a)(19) of the Exchange Act.</div>
          </td>
        </tr>
        <tr>
          <td style="width: 4%; vertical-align: top;">&#160;</td>
          <td style="width: 4.76%; vertical-align: top;">&#160;</td>
          <td style="width: 3.81%; vertical-align: top;">&#160;</td>
          <td style="width: 87.43%; vertical-align: top;">&#160;</td>
        </tr>

    </table>
    <div style="line-height: 13.7pt; margin-bottom: 12pt;"><br style="line-height: 13.7pt;">
    </div>
    <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
      <div id="DSPFPageBreak" style="page-break-after:always;">
        <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
    </div>
    <div style="line-height: 13.7pt; margin-bottom: 12pt;"><br style="line-height: 13.7pt;">
    </div>
    <table cellspacing="0" cellpadding="0" id="z113aa06090cd41689479e0230f511c5e" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; border-collapse: collapse; text-align: left; color: #000000;">

        <tr>
          <td style="width: 4%; vertical-align: top;">&#160;</td>
          <td style="width: 4.76%; vertical-align: top;">
            <div style="text-align: center; line-height: 11.4pt;">(d)</div>
          </td>
          <td style="width: 3.81%; vertical-align: top;">
            <div style="text-align: justify; line-height: 11.4pt;">[ ]</div>
          </td>
          <td style="width: 87.43%; vertical-align: top;">
            <div style="text-align: justify; line-height: 11.4pt;">Investment company registered under Section 8 of the Investment Company Act.</div>
          </td>
        </tr>
        <tr>
          <td style="width: 4%; vertical-align: top;">&#160;</td>
          <td style="width: 4.76%; vertical-align: top;">&#160;</td>
          <td style="width: 3.81%; vertical-align: top;">&#160;</td>
          <td style="width: 87.43%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 4%; vertical-align: top;">&#160;</td>
          <td style="width: 4.76%; vertical-align: top;">
            <div style="text-align: center; line-height: 11.4pt;">(e)</div>
          </td>
          <td style="width: 3.81%; vertical-align: top;">
            <div style="text-align: justify; line-height: 11.4pt;">[ ]</div>
          </td>
          <td style="width: 87.43%; vertical-align: top;">
            <div style="text-align: justify; line-height: 11.4pt;">An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E).</div>
          </td>
        </tr>
        <tr>
          <td style="width: 4%; vertical-align: top;">&#160;</td>
          <td style="width: 4.76%; vertical-align: top;">&#160;</td>
          <td style="width: 3.81%; vertical-align: top;">&#160;</td>
          <td style="width: 87.43%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 4%; vertical-align: top;">&#160;</td>
          <td style="width: 4.76%; vertical-align: top;">
            <div style="text-align: center; line-height: 11.4pt;">(f)</div>
          </td>
          <td style="width: 3.81%; vertical-align: top;">
            <div style="text-align: justify; line-height: 11.4pt;">[ ]</div>
          </td>
          <td style="width: 87.43%; vertical-align: top;">
            <div style="text-align: justify; line-height: 11.4pt;">An employee benefit plan or endowment fund in accordance with Rule 13d-1(b)(1)(ii)(F).</div>
          </td>
        </tr>
        <tr>
          <td style="width: 4%; vertical-align: top;">&#160;</td>
          <td style="width: 4.76%; vertical-align: top;">&#160;</td>
          <td style="width: 3.81%; vertical-align: top;">&#160;</td>
          <td style="width: 87.43%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 4%; vertical-align: top;">&#160;</td>
          <td style="width: 4.76%; vertical-align: top;">
            <div style="text-align: center; line-height: 11.4pt;">(g)</div>
          </td>
          <td style="width: 3.81%; vertical-align: top;">
            <div style="text-align: justify; line-height: 11.4pt;">[ ]</div>
          </td>
          <td style="width: 87.43%; vertical-align: top;">
            <div style="text-align: justify; line-height: 11.4pt;">A parent holding company or control person in accordance with Rule 13d-1(b)(1)(ii)(G).</div>
          </td>
        </tr>
        <tr>
          <td style="width: 4%; vertical-align: top;">&#160;</td>
          <td style="width: 4.76%; vertical-align: top;">&#160;</td>
          <td style="width: 3.81%; vertical-align: top;">&#160;</td>
          <td style="width: 87.43%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 4%; vertical-align: top;">&#160;</td>
          <td style="width: 4.76%; vertical-align: top;">
            <div style="text-align: center; line-height: 11.4pt;">(h)</div>
          </td>
          <td style="width: 3.81%; vertical-align: top;">
            <div style="text-align: justify; line-height: 11.4pt;">[ ]</div>
          </td>
          <td style="width: 87.43%; vertical-align: top;">
            <div style="text-align: justify; line-height: 11.4pt;">A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act.</div>
          </td>
        </tr>
        <tr>
          <td style="width: 4%; vertical-align: top;">&#160;</td>
          <td style="width: 4.76%; vertical-align: top;">&#160;</td>
          <td style="width: 3.81%; vertical-align: top;">&#160;</td>
          <td style="width: 87.43%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 4%; vertical-align: top;">&#160;</td>
          <td style="width: 4.76%; vertical-align: top;">
            <div style="text-align: center; line-height: 11.4pt;">(i)</div>
          </td>
          <td style="width: 3.81%; vertical-align: top;">
            <div style="text-align: justify; line-height: 11.4pt;">[ ]</div>
          </td>
          <td style="width: 87.43%; vertical-align: top;">
            <div style="text-align: justify; line-height: 11.4pt;">A church plan that is excluded from the definition of an investment company under Section 3(c)(14) of the Investment Company
              Act;</div>
          </td>
        </tr>
        <tr>
          <td style="width: 4%; vertical-align: top;">&#160;</td>
          <td style="width: 4.76%; vertical-align: top;">&#160;</td>
          <td style="width: 3.81%; vertical-align: top;">&#160;</td>
          <td style="width: 87.43%; vertical-align: top;">&#160;</td>
        </tr>
        <tr>
          <td style="width: 4%; vertical-align: top;">&#160;</td>
          <td style="width: 4.76%; vertical-align: top;">
            <div style="text-align: center; line-height: 11.4pt;">(j)</div>
          </td>
          <td style="width: 3.81%; vertical-align: top;">
            <div style="text-align: justify; line-height: 11.4pt;">[ ]</div>
          </td>
          <td style="width: 87.43%; vertical-align: top;">
            <div style="text-align: justify; line-height: 11.4pt;">Group, in accordance with Rule 13d-1(b)(1)(ii)(J).</div>
          </td>
        </tr>

    </table>
    <div style="line-height: 11.4pt; margin-bottom: 12pt;"><br style="line-height: 11.4pt;">
    </div>
    <div style="line-height: 11.4pt; margin-bottom: 12pt;">
      <div>
        <table cellspacing="0" cellpadding="0" id="z359e92db6b0d429f830033f8339c9b73" class="DSPFListTable" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt; vertical-align: top; align: right; font-weight: bold;">Item 4.</td>
              <td style="width: auto; vertical-align: top;">
                <div style="font-weight: bold;">Ownership.</div>
              </td>
            </tr>

        </table>
      </div>
    </div>
    <div style="text-align: justify; line-height: 11.4pt; margin-bottom: 12pt;">
      <div>
        <table cellspacing="0" cellpadding="0" id="zbfd02b63086b4dd48937c843ac582a8a" class="DSPFListTable" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; align: right;">(a)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Amount beneficially owned:</div>
              </td>
            </tr>

        </table>
      </div>
    </div>
    <div style="text-align: justify; margin-left: 72pt; line-height: 11.4pt; margin-bottom: 12pt;">As of the date hereof, the Master Fund beneficially owned 13,214,865 shares of Common Stock.</div>
    <div style="text-align: justify; margin-left: 72pt; line-height: 11.4pt; margin-bottom: 12pt;">By virtue of their relationships with the Master Fund discussed in further detail in Item
      2(a), each of Mangrove Partners and Nathaniel August <font style="color: #000000;">may be deemed beneficially own the </font>13,214,865 shares of Common Stock<font style="color: #000000;">&#160;</font>owned directly by the Master Fund.</div>
    <div style="text-align: justify; line-height: 11.4pt; margin-bottom: 12pt;">
      <div>
        <table cellspacing="0" cellpadding="0" id="zfe485c47801d455794cd473a4797488f" class="DSPFListTable" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; align: right;">(b)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Percent of class:</div>
              </td>
            </tr>

        </table>
      </div>
    </div>
    <div style="text-align: justify; margin-left: 72pt; line-height: 11.4pt; margin-bottom: 12pt;">The aggregate percentage of Common Stock reported owned by each person named herein is based
      upon 284,842,967<font style="color: #000000;"> shares </font>of Common Stock outstanding as of December 31, 2018, as reported in the Issuer&#8217;s Annual Report on Form 40-F filed with the
      Securities and Exchange Commission on February 27, 2019.</div>
    <div style="text-align: justify; margin-left: 72pt; line-height: 11.4pt; margin-bottom: 12pt;">As of the date hereof, the Master Fund beneficially owned approximately 4.6% of the
      outstanding shares of Common Stock.</div>
    <div style="text-align: justify; margin-left: 72pt; line-height: 11.4pt; margin-bottom: 12pt;">By virtue of their relationships with the Master Fund discussed in further detail in Item
      2(a), each of Mangrove Partners and Nathaniel August <font style="color: #000000;">may be deemed to beneficially own </font>approximately 4.6% of the outstanding shares of Common Stock.</div>
    <div style="text-align: justify; line-height: 11.4pt; margin-bottom: 12pt;">
      <div>
        <table cellspacing="0" cellpadding="0" id="z32d575f0dd13435ab55619c31de5ea72" class="DSPFListTable" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 36pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; align: right;">(c)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Number of shares as to which such person has:</div>
              </td>
            </tr>

        </table>
      </div>
    </div>
    <div style="text-align: justify; line-height: 11.4pt; margin-bottom: 12pt;">
      <div>
        <table cellspacing="0" cellpadding="0" id="z2eb904698f114e40bf9f3b92cb35c142" class="DSPFListTable" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; align: right;">(i)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Sole power to vote or to direct the vote</div>
              </td>
            </tr>

        </table>
      </div>
    </div>
    <div style="text-align: justify; margin-left: 108pt; line-height: 11.4pt; margin-bottom: 12pt;">See Cover Pages Items 5-9.</div>
    <div style="text-align: justify; line-height: 11.4pt; margin-bottom: 12pt;">
      <div>
        <table cellspacing="0" cellpadding="0" id="z9a2a724c34cf46ad8d7eb72edc6cf4b5" class="DSPFListTable" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; align: right;">(ii)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Shared power to vote or to direct the vote</div>
              </td>
            </tr>

        </table>
      </div>
    </div>
    <div style="text-align: justify; margin-left: 108pt; line-height: 11.4pt; margin-bottom: 12pt; color: #000000;">See Cover Pages Items 5-9.</div>
    <div style="text-align: justify; line-height: 11.4pt; margin-bottom: 12pt;">
      <div>
        <table cellspacing="0" cellpadding="0" id="z55c3aad09ff24aa182733a7d7ba9dd31" class="DSPFListTable" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; align: right;">(iii)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Sole power to dispose or to direct the disposition of</div>
              </td>
            </tr>

        </table>
      </div>
    </div>
    <div style="text-align: justify; margin-left: 108pt; line-height: 11.4pt; margin-bottom: 12pt; color: #000000;">See Cover Pages Items 5-9.</div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div style="page-break-after: always;" id="DSPFPageBreak">
        <hr noshade="noshade" style="border-width: 0px; clear: both; margin: 4px 0px; width: 100%; height: 2px; color: #000000; background-color: #000000;"></div>
    </div>
    <div style="text-align: justify; line-height: 11.4pt; margin-bottom: 12pt;">
      <div>
        <table cellspacing="0" cellpadding="0" id="z08180f578e5b499a8a33cebf2670f395" class="DSPFListTable" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt;"><br>
              </td>
              <td style="width: 36pt; vertical-align: top; align: right;">(iv)</td>
              <td style="width: auto; vertical-align: top; text-align: justify;">
                <div>Shared power to dispose or to direct the disposition of</div>
              </td>
            </tr>

        </table>
      </div>
    </div>
    <div style="text-align: justify; margin-left: 108pt; line-height: 11.4pt; margin-bottom: 12pt; color: #000000;">See Cover Pages Items 5-9.</div>
    <div style="line-height: 11.4pt; margin-bottom: 12pt;">
      <div>
        <table cellspacing="0" cellpadding="0" id="z05e7c97e417e4d9c95d43002d107e3b9" class="DSPFListTable" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt; vertical-align: top; align: right; font-weight: bold;">Item 5.</td>
              <td style="width: auto; vertical-align: top;">
                <div style="font-weight: bold;">Ownership of Five Percent or Less of a Class.</div>
              </td>
            </tr>

        </table>
      </div>
    </div>
    <div style="text-align: justify; text-indent: 36pt; line-height: 11.4pt; margin-bottom: 12pt;">If this statement is being filed to report the fact that as of the date hereof the Reporting
      Persons have ceased to be the beneficial owner of more than five percent of the class of securities, check the following [X].</div>
    <div style="line-height: 11.4pt; margin-bottom: 12pt;">
      <div>
        <table cellspacing="0" cellpadding="0" id="z80653e69fb10482195b529320302c39c" class="DSPFListTable" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt; vertical-align: top; align: right; font-weight: bold;">Item 6.</td>
              <td style="width: auto; vertical-align: top;">
                <div style="font-weight: bold;">Ownership of More than Five Percent on Behalf of Another Person.</div>
              </td>
            </tr>

        </table>
      </div>
    </div>
    <div style="text-align: justify; text-indent: 36pt; line-height: 11.4pt; margin-bottom: 12pt;">Not applicable.</div>
    <div style="line-height: 11.4pt; margin-bottom: 12pt;">
      <div>
        <table cellspacing="0" cellpadding="0" id="z0e8c26bb820e497ca68c7a8894342785" class="DSPFListTable" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%; text-align: left; color: #000000;">

            <tr>
              <td style="width: 72pt; vertical-align: top; align: right; font-weight: bold;">Item 7.</td>
              <td style="width: auto; vertical-align: top;">
                <div style="font-weight: bold;">Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company.</div>
              </td>
            </tr>

        </table>
      </div>
    </div>
    <div style="text-align: justify; text-indent: 36pt; line-height: 11.4pt; margin-bottom: 12pt;">Not applicable.</div>
    <div style="line-height: 11.4pt; margin-bottom: 12pt;">
      <div>
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            <tr>
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    <div style="text-align: justify; text-indent: 36pt; line-height: 11.4pt; margin-bottom: 12pt;">See Exhibit A.</div>
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    <div style="text-align: justify; text-indent: 36pt; line-height: 11.4pt; margin-bottom: 12pt;">By signing below each of the undersigned certifies that, to the best of his or its knowledge
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      certifies that the information with respect to it set forth in this statement is true, complete, and correct.</div>
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<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>transalta991-011520.htm
<DESCRIPTION>JOINT FILING AGREEMENT
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    <div style="text-align: center; line-height: 11.4pt; margin-bottom: 12pt; font-weight: bold;">EXHIBIT A</div>
    <div style="text-align: center; line-height: 11.4pt; margin-bottom: 12pt; font-weight: bold;">JOINT FILING AGREEMENT</div>
    <div style="text-align: justify; text-indent: 36pt; line-height: 11.4pt; margin-bottom: 12pt;">The undersigned hereby agree that the statement on Schedule 13G with respect to the Common
      Stock of TransAlta Corporation dated January 24, 2020 and any further amendments thereto signed by each of the undersigned shall be, filed on behalf of each of the undersigned pursuant to and in accordance with the provisions of Rule 13d-1(k) under
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    <div style="text-align: justify; text-indent: -54pt; margin-left: 54pt; line-height: 11.4pt; margin-bottom: 12pt;">Dated:&#160; January 24, 2020</div>
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            <div style="line-height: 11.4pt; color: #000000;">THE MANGROVE PARTNERS MASTER FUND, LTD.</div>
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            <div style="line-height: 11.4pt;">By:</div>
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          <td style="width: 45.3%; vertical-align: top;" colspan="2">
            <div style="line-height: 11.4pt;">MANGROVE PARTNERS,</div>
            <div style="line-height: 11.4pt;">as Investment Manager</div>
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          <td style="width: 48.45%; vertical-align: top;">&#160;</td>
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            <div style="line-height: 11.4pt;">Director</div>
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          <td style="width: 48.45%; vertical-align: top;">&#160;</td>
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          <td style="width: 48.45%; vertical-align: top;">&#160;</td>
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          <td style="width: 6.26%; vertical-align: top;">&#160;</td>
          <td style="width: 9.2%; vertical-align: top;">
            <div style="line-height: 11.4pt;">Name:</div>
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          <td style="width: 36.1%; vertical-align: top;">
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          <td style="width: 6.26%; vertical-align: top;">&#160;</td>
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          <td style="width: 49.32%; vertical-align: top;">&#160;</td>
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