<SEC-DOCUMENT>0001144204-14-056582.txt : 20140917
<SEC-HEADER>0001144204-14-056582.hdr.sgml : 20140917
<ACCEPTANCE-DATETIME>20140917172857
ACCESSION NUMBER:		0001144204-14-056582
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20140917
DATE AS OF CHANGE:		20140917
GROUP MEMBERS:		GLENCORE AG
GROUP MEMBERS:		GLENCORE PLC

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CENTURY ALUMINUM CO
		CENTRAL INDEX KEY:			0000949157
		STANDARD INDUSTRIAL CLASSIFICATION:	PRIMARY PRODUCTION OF ALUMINUM [3334]
		IRS NUMBER:				133070826
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-47307
		FILM NUMBER:		141108661

	BUSINESS ADDRESS:	
		STREET 1:		1 SOUTH WACKER DRIVE
		STREET 2:		SUITE 1000
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
		BUSINESS PHONE:		3126963101

	MAIL ADDRESS:	
		STREET 1:		1 SOUTH WACKER DRIVE
		STREET 2:		SUITE 1000
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GLENCORE INTERNATIONAL AG
		CENTRAL INDEX KEY:			0001032383

	FILING VALUES:
		FORM TYPE:		SC 13D/A

	BUSINESS ADDRESS:	
		STREET 1:		BAARERMATTSTRASSE 3
		STREET 2:		P O BOX 555 CH 6341 BAAR
		CITY:			SWITZERLAND
		BUSINESS PHONE:		4142227722

	MAIL ADDRESS:	
		STREET 1:		BAARERMATTSTRASSE 3
		STREET 2:		P O BOX 555 CH 6341 BAAR
		CITY:			SWITZERLAND
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>1
<FILENAME>v389401_sc13da.htm
<DESCRIPTION>SC 13D/A
<TEXT>
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<P STYLE="margin: 0">&nbsp;</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>UNITED STATES</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SECURITIES AND EXCHANGE COMMISSION</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Washington, D.C. 20549</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SCHEDULE 13D/A</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Under the Securities Exchange Act of 1934</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Amendment No. 19)*</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>CENTURY ALUMINUM COMPANY</B></P>

<HR SIZE="1" NOSHADE ALIGN="LEFT" STYLE="width: 100%; color: black">

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Name of Issuer</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>COMMON STOCK, $0.01 Par Value</B></P>

<HR SIZE="1" NOSHADE ALIGN="LEFT" STYLE="width: 100%; color: black">

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Title of Class of Securities)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>156431 10 8</B></P>

<HR SIZE="1" NOSHADE ALIGN="LEFT" STYLE="width: 100%; color: black">

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(CUSIP Number)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Steven Kalmin and Daniel Goldberg</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Glencore International AG </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Baarermattstrasse 3 </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>CH-6341 Baar </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Switzerland </B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>+41 41 709 2000</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>With copies to:</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Matias Vega, Esq.</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Curtis, Mallet-Prevost, Colt &amp; Mosle
LLP</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>101 Park Avenue</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>New York, NY 10178</B></P>

<HR SIZE="1" NOSHADE ALIGN="LEFT" STYLE="width: 100%; color: black">

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Name, Address and Telephone Number of Person</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Authorized to Receive Notices and Communications)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>September 17, 2014</B></P>

<HR SIZE="1" NOSHADE ALIGN="LEFT" STYLE="width: 100%; color: black">

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Date of Event which Requires Filing of
this Statement)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">If the filing person has previously filed a statement on Schedule
13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of &sect;&sect; 240.13d-1(e),
240.13d-1(f) or 240.13d-1(g), check the following box. <FONT STYLE="font-family: Wingdings">o</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Note</B>: Schedules filed in paper format shall include a
signed original and five copies of the schedule, including all exhibits.&nbsp;&nbsp;See &sect; 240.13d-7 for other parties to whom
copies are to be sent.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">* The information required on the remainder of this cover page
shall not be deemed to be ''filed'' for the purpose of Section 18 of the Securities Exchange Act of 1934 (''<U>Act</U>'') 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).</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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    <TD STYLE="width: 30%; border-bottom: black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="width: 40%; text-align: center"><FONT STYLE="font-size: 10pt"><B>SCHEDULE 13D</B></FONT></TD>
    <TD STYLE="width: 30%; border-bottom: black 1.5pt solid">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: black 1.5pt solid; border-left: black 1pt solid"><FONT STYLE="font-size: 10pt"><B>CUSIP No. 156431 10 8</B></FONT></TD>
    <TD STYLE="border-left: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-left: black 1pt solid; border-bottom: black 1.5pt solid; text-align: center"><FONT STYLE="font-size: 10pt"><B>Page&nbsp;</B></FONT>2<FONT STYLE="font-size: 10pt"><B>&nbsp;of </B></FONT>14</TD></TR>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
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<tr style="vertical-align: top">
    <td style="width: 5%; border-bottom: black 1.5pt solid">&nbsp;</td>
    <td style="width: 95%; border-bottom: black 1.5pt solid">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td>&nbsp;</td>
    <td>&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="text-align: center"><font style="font-size: 10pt">1.</font></td>
    <td>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Names of Reporting Persons.</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">I.R.S.&nbsp;&nbsp;Identification Nos. of above persons (entities
        only).</P></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid">&nbsp;</td>
    <td style="border-bottom: black 1.5pt solid"><font style="font-size: 10pt"><b>Glencore International AG</b></font></td></tr>
<tr style="vertical-align: top">
    <td>&nbsp;</td>
    <td>&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="text-align: center"><font style="font-size: 10pt">2.</font></td>
    <td><font style="font-size: 10pt">Check the Appropriate Box if a Member of a Group (See Instructions)</font></td></tr>
<tr style="vertical-align: top">
    <td>&nbsp;</td>
    <td><font style="font-size: 10pt">(a) <font style="font-family: Wingdings">o</font></font></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid">&nbsp;</td>
    <td style="border-bottom: black 1.5pt solid"><font style="font-size: 10pt">(b) <font style="font-family: Wingdings">o</font></font></td></tr>
<tr style="vertical-align: top">
    <td>&nbsp;</td>
    <td>&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid; text-align: center"><font style="font-size: 10pt">3.</font></td>
    <td style="border-bottom: black 1.5pt solid"><font style="font-size: 10pt">SEC Use Only</font></td></tr>
<tr style="vertical-align: top">
    <td>&nbsp;</td>
    <td>&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="text-align: center"><font style="font-size: 10pt">4.</font></td>
    <td><font style="font-size: 10pt">Source of Funds (See Instructions)</font></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid">&nbsp;</td>
    <td style="border-bottom: black 1.5pt solid"><font style="font-size: 10pt"><b>WC, AF</b></font></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">5.</P></td>
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check if Disclosure of Legal Proceedings Is Required Pursuant
        to Items 2(d) or 2(e) &#9;<font style="font-family: Wingdings">o</font></P></td></tr>
<tr style="vertical-align: top">
    <td>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">6.</P></td>
    <td>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Citizenship or Place of Organization</P></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid">&nbsp;</td>
    <td style="border-bottom: black 1.5pt solid"><font style="font-size: 10pt"><b>Switzerland</b></font></td></tr>
</table>


<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr>
    <td rowspan="4" style="width: 12%; border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Number of</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shares</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Beneficially</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">by Owned by</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Each</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Reporting</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Person With</P></td>
    <td style="vertical-align: top; width: 5%; border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">7.</P></td>
    <td style="vertical-align: top; width: 83%; border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Voting Power: <b>None</b></P></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">8.</P></td>
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Voting Power: <b>37,092,394 shares (See Item 5)</b></P></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">9.</P></td>
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Dispositive Power: <b>None</b></P></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">10.</P></td>
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Dispositive Power: <b>37,092,394 shares (See Item 5)</b></P></td></tr>
</table>


<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="vertical-align: top">
    <td style="width: 5%; border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">11.</P></td>
    <td style="width: 95%; border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Aggregate Amount Beneficially Owned by Each Reporting Person:</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b>37,092,394 shares (See Item 5)</b></P></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">12.</P></td>
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check if the Aggregate Amount in Row (11) Excludes Certain Shares&nbsp;&nbsp;(See
        Instructions)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b>Not applicable.</b></P></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">13.</P></td>
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Percent of Class Represented by Amount in Row (11):</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b>41.8% (See Item 5)</b></P></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">14.</P></td>
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Type of Reporting Person (See Instructions)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b>CO, HC</b></P></td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>


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    <TD STYLE="width: 30%; border-bottom: black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="width: 40%; text-align: center"><FONT STYLE="font-size: 10pt"><B>SCHEDULE 13D</B></FONT></TD>
    <TD STYLE="width: 30%; border-bottom: black 1.5pt solid">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: black 1.5pt solid; border-left: black 1pt solid"><FONT STYLE="font-size: 10pt"><B>CUSIP No. 156431 10 8</B></FONT></TD>
    <TD STYLE="border-left: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-left: black 1pt solid; border-bottom: black 1.5pt solid; text-align: center"><FONT STYLE="font-size: 10pt"><B>Page&nbsp;</B></FONT>3<FONT STYLE="font-size: 10pt"><B>&nbsp;of </B></FONT>14</TD></TR>
</TABLE>


<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="vertical-align: top">
    <td style="width: 5%; border-bottom: black 1.5pt solid; font-size: 10pt">&nbsp;</td>
    <td style="width: 95%; border-bottom: black 1.5pt solid; font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="font-size: 10pt; text-align: center"><font style="font-size: 10pt">1.</font></td>
    <td>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Names of Reporting Persons.</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">I.R.S.&nbsp;&nbsp;Identification Nos. of above persons (entities
        only).</P></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid; font-size: 10pt">&nbsp;</td>
    <td style="border-bottom: black 1.5pt solid; font-size: 10pt"><font style="font-size: 10pt"><b>Glencore plc</b></font></td></tr>
<tr style="vertical-align: top">
    <td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="font-size: 10pt; text-align: center"><font style="font-size: 10pt">2.</font></td>
    <td style="font-size: 10pt"><font style="font-size: 10pt">Check the Appropriate Box if a Member of a Group (See Instructions)</font></td></tr>
<tr style="vertical-align: top">
    <td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt"><font style="font-size: 10pt">(a) <font style="font-family: Wingdings">o</font></font></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid; font-size: 10pt">&nbsp;</td>
    <td style="border-bottom: black 1.5pt solid; font-size: 10pt"><font style="font-size: 10pt">(b) <font style="font-family: Wingdings">o</font></font></td></tr>
<tr style="vertical-align: top">
    <td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid; font-size: 10pt; text-align: center"><font style="font-size: 10pt">3.</font></td>
    <td style="border-bottom: black 1.5pt solid; font-size: 10pt"><font style="font-size: 10pt">SEC Use Only</font></td></tr>
<tr style="vertical-align: top">
    <td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="font-size: 10pt; text-align: center"><font style="font-size: 10pt">4.</font></td>
    <td style="font-size: 10pt"><font style="font-size: 10pt">Source of Funds (See Instructions)</font></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid; font-size: 10pt">&nbsp;</td>
    <td style="border-bottom: black 1.5pt solid; font-size: 10pt"><font style="font-size: 10pt"><b>AF</b></font></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">5.</P></td>
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check if Disclosure of Legal Proceedings Is Required Pursuant
        to Items 2(d) or 2(e) &#9;<font style="font-family: Wingdings">o</font></P></td></tr>
<tr style="vertical-align: top">
    <td>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">6.</P></td>
    <td>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Citizenship or Place of Organization</P></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid; font-size: 10pt">&nbsp;</td>
    <td style="border-bottom: black 1.5pt solid; font-size: 10pt"><font style="font-size: 10pt"><b>Jersey</b></font></td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr>
    <td rowspan="4" style="width: 12%; border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Number of</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shares</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Beneficially</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">by Owned by</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Each</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Reporting</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Person With</P></td>
    <td style="vertical-align: top; width: 5%; border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">7.</P></td>
    <td style="vertical-align: top; width: 83%; border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Voting Power: <b>None</b></P></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">8.</P></td>
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Voting Power: <b>37,092,394 shares (See Item 5)</b></P></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">9.</P></td>
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Dispositive Power: <b>None</b></P></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">10.</P></td>
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Dispositive Power: <b>37,092,394 shares (See Item 5)</b></P></td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="vertical-align: top">
    <td style="width: 5%; border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">11.</P></td>
    <td style="width: 95%; border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Aggregate Amount Beneficially Owned by Each Reporting Person:</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b>37,092,394 shares (See Item 5)</b></P></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">12.</P></td>
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check if the Aggregate Amount in Row (11) Excludes Certain Shares&nbsp;&nbsp;(See
        Instructions)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b>Not applicable.</b></P></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">13.</P></td>
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Percent of Class Represented by Amount in Row (11):</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b>41.8% (See Item 5)</b></P></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">14.</P></td>
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Type of Reporting Person (See Instructions)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b>CO, HC</b></P></td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>


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<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 30%; border-bottom: black 1.5pt solid">&nbsp;</TD>
    <TD STYLE="width: 40%; text-align: center"><FONT STYLE="font-size: 10pt"><B>SCHEDULE 13D</B></FONT></TD>
    <TD STYLE="width: 30%; border-bottom: black 1.5pt solid">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: black 1.5pt solid; border-left: black 1pt solid"><FONT STYLE="font-size: 10pt"><B>CUSIP No. 156431 10 8</B></FONT></TD>
    <TD STYLE="border-left: black 1pt solid">&nbsp;</TD>
    <TD STYLE="border-right: black 1pt solid; border-left: black 1pt solid; border-bottom: black 1.5pt solid; text-align: center"><FONT STYLE="font-size: 10pt"><B>Page&nbsp;</B></FONT>4<FONT STYLE="font-size: 10pt"><B>&nbsp;of </B></FONT>14</TD></TR>
</TABLE>


<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="vertical-align: top">
    <td style="width: 5%; border-bottom: black 1.5pt solid; font-size: 10pt">&nbsp;</td>
    <td style="width: 95%; border-bottom: black 1.5pt solid; font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="font-size: 10pt; text-align: center"><font style="font-size: 10pt">1.</font></td>
    <td>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Names of Reporting Persons.</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">I.R.S.&nbsp;&nbsp;Identification Nos. of above persons (entities
        only).</P></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid; font-size: 10pt">&nbsp;</td>
    <td style="border-bottom: black 1.5pt solid; font-size: 10pt"><font style="font-size: 10pt"><b>Glencore AG</b></font></td></tr>
<tr style="vertical-align: top">
    <td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="font-size: 10pt; text-align: center"><font style="font-size: 10pt">2.</font></td>
    <td style="font-size: 10pt"><font style="font-size: 10pt">Check the Appropriate Box if a Member of a Group (See Instructions)</font></td></tr>
<tr style="vertical-align: top">
    <td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt"><font style="font-size: 10pt">(a) <font style="font-family: Wingdings">o</font></font></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid; font-size: 10pt">&nbsp;</td>
    <td style="border-bottom: black 1.5pt solid; font-size: 10pt"><font style="font-size: 10pt">(b) <font style="font-family: Wingdings">o</font></font></td></tr>
<tr style="vertical-align: top">
    <td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid; font-size: 10pt; text-align: center"><font style="font-size: 10pt">3.</font></td>
    <td style="border-bottom: black 1.5pt solid; font-size: 10pt"><font style="font-size: 10pt">SEC Use Only</font></td></tr>
<tr style="vertical-align: top">
    <td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="font-size: 10pt; text-align: center"><font style="font-size: 10pt">4.</font></td>
    <td style="font-size: 10pt"><font style="font-size: 10pt">Source of Funds (See Instructions)</font></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid; font-size: 10pt">&nbsp;</td>
    <td style="border-bottom: black 1.5pt solid; font-size: 10pt"><font style="font-size: 10pt"><b>WC, AF</b></font></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">5.</P></td>
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check if Disclosure of Legal Proceedings Is Required Pursuant
        to Items 2(d) or 2(e) &#9;<font style="font-family: Wingdings">o</font></P></td></tr>
<tr style="vertical-align: top">
    <td>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">6.</P></td>
    <td>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Citizenship or Place of Organization</P></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid; font-size: 10pt">&nbsp;</td>
    <td style="border-bottom: black 1.5pt solid; font-size: 10pt"><font style="font-size: 10pt"><b>Switzerland</b></font></td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr>
    <td rowspan="4" style="width: 12%; border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Number of</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shares</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Beneficially</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">by Owned by</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Each</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Reporting</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Person With</P></td>
    <td style="vertical-align: top; width: 5%; border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">7.</P></td>
    <td style="vertical-align: top; width: 83%; border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Voting Power: <b>None</b></P></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">8.</P></td>
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Voting Power: <b>37,092,394 shares (See Item 5)</b></P></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">9.</P></td>
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Sole Dispositive Power: <b>None</b></P></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">10.</P></td>
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Shared Dispositive Power: <b>37,092,394 shares (See Item 5)</b></P></td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="vertical-align: top">
    <td style="width: 5%; border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">11.</P></td>
    <td style="width: 95%; border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Aggregate Amount Beneficially Owned by Each Reporting Person:</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b>37,092,394 shares (See Item 5)</b></P></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">12.</P></td>
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check if the Aggregate Amount in Row (11) Excludes Certain Shares&nbsp;&nbsp;(See
        Instructions)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b>Not applicable.</b></P></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">13.</P></td>
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Percent of Class Represented by Amount in Row (11):</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b>41.8% (See Item 5)</b></P></td></tr>
<tr style="vertical-align: top">
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">14.</P></td>
    <td style="border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Type of Reporting Person (See Instructions)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b>CO</b></P></td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Explanatory Note:</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">This Amendment No. 19 (&ldquo;Amendment
No. 19&rdquo;) amends and restates the Schedule 13D originally filed with the Securities and Exchange Commission by Glencore AG,
Glencore International AG and Glencore Holding AG on April 12, 2001, and amended on May 25, 2004, November 27, 2007, July 8, 2008,
July 21, 2008, January 28, 2009, February 4, 2009, May 5, 2009, March 22, 2010, April 7, 2010, July 2, 2010, July 6, 2010, September
16, 2010, February 1, 2011, March 14, 2011, April 6, 2011, June 2, 2011(by Amendment No. 16 filed by Glencore AG, Glencore International
AG and Glencore International plc (now known as Glencore plc)), October 4, 2011 and July 11, 2014 (as so amended, the &quot;<U>Statement</U>&quot;),
relating to the common stock, par value $0.01 per share (&quot;<U>Common Stock</U>&quot;), of Century Aluminum Company (the &quot;<U>Company</U>&quot;).
This Amendment No. 19 reflects changes to Items 5 and 6, and the addition to Item 7 of a new joint filing agreement among the Reporting
Persons.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="vertical-align: top">
    <TD STYLE="width: 10%; font-size: 10pt"><font style="font-size: 10pt"><b>Item 1.</b></font></td>
    <TD STYLE="width: 90%; font-size: 10pt"><font style="font-size: 10pt"><b>Security and Issuer</b></font></td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">This statement on Schedule 13D relates to
the common stock, par value $0.01 per share, of Century Aluminum Company, a Delaware corporation.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">The Company's principal executive office
is located at One South Wacker Drive, Suite 1000, Chicago, Illinois 60606.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="vertical-align: top">
    <TD STYLE="width: 10%; font-size: 10pt"><font style="font-size: 10pt"><b>Item 2.</b></font></td>
    <TD STYLE="font-size: 10pt; width: 90%"><font style="font-size: 10pt"><b>Identity and Background</b></font></td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">(a) &mdash; (c) and (f) This Statement on
Schedule 13D is being filed by Glencore plc, formerly known as Glencore Xstrata plc which was formerly known as Glencore International
plc (&ldquo;<U>Glencore plc</U>&rdquo;), Glencore International AG (&ldquo;<U>Glencore International</U>&rdquo;) and Glencore AG
(&ldquo;<U>Glencore AG</U>&rdquo; and together with Glencore plc and Glencore International, the &ldquo;<U>Reporting Persons</U>&rdquo;).
Glencore plc is a company organized under the laws of Jersey. Each of Glencore International and Glencore AG is a company organized
under the laws of Switzerland. The business address for each of the Reporting Persons is Baarermattstrasse 3, CH-6341, Baar, Switzerland.
Glencore plc is a public company with its ordinary shares listed on the London Stock Exchange, the Hong Kong Stock Exchange and
the Johannesburg Stock Exchange. Glencore plc is the parent company of Glencore International which, together with its subsidiaries,
including Glencore AG, is a leading integrated producer and marketer of commodities, with worldwide activities in the marketing
of metals and minerals, energy products and agricultural products and the production, refinement, processing, storage and transport
of these products. Glencore AG is a direct wholly-owned subsidiary of Glencore International. The name, address, citizenship and
present principal occupation or employment of each of the directors and executive officers of each Reporting Person, as well as
the names, principal businesses and addresses of any corporations and other organizations in which such employment is conducted,
are set forth on Schedule 1 hereto, which Schedule 1 is incorporated herein by reference.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">(d) &mdash; (e) None of the Reporting Persons
nor, to the best of their knowledge, any of the persons listed on Schedule 1 hereto has during the last five years, been convicted
in a criminal proceeding (excluding traffic violations or similar misdemeanors). None of the Reporting Persons nor, to the best
of their knowledge, any of the persons listed on Schedule 1 hereto has during the last five years, been a party to a civil proceeding
of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment,
decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities
laws or finding any violation with respect to such laws.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="vertical-align: top">
    <TD STYLE="width: 10%; font-size: 10pt"><font style="font-size: 10pt"><b>Item 3.</b></font></td>
    <TD STYLE="font-size: 10pt; width: 90%"><font style="font-size: 10pt"><b>Source and Amount of Funds or Other Consideration</b></font></td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Since the Company's initial public offering
of Common Stock and the registration of Common Stock under Section 12 of the Securities Exchange Act of 1934, as amended, in April
1996, the Reporting Persons have purchased an aggregate of 19,678,311 additional shares of Common Stock (not including shares of
Common Stock issued or issuable upon conversion of preferred stock owned by the Reporting Persons or pursuant to options or other
compensatory grants issued to Mr. Willy R. Strothotte, a director of the Company, who holds such options or other grants as nominee
for the Reporting Persons) in registered public offerings by the Company and in open market transactions, 500,000 shares of Cumulative
Convertible Preferred Stock, par value $0.01 per share, from the Company in a private transaction in April 2001 (all of which were
converted into 1,395,089 shares of Common Stock in May 2004), and 160,000 shares of Series A Preferred Stock, par value $0.01 per
share (the &quot;<U>Preferred Shares</U>&quot;), from the Company in a private transaction in July 2008 (which are convertible
into shares of Common Stock as summarized in Item 6 below).</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">The consideration paid by the Reporting
Persons for the 19,678,311 shares of Common Stock, the 500,000 shares of Cumulative Convertible Preferred Stock and the 160,000
shares of Series A Preferred Stock was $359,657,954, $25,000,000 and $1,090,259,200, respectively, in cash, all of which was obtained
from the Reporting Persons' internal working capital.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="vertical-align: top">
    <TD STYLE="width: 10%; font-size: 10pt"><font style="font-size: 10pt"><b>Item 4.</b></font></td>
    <TD STYLE="font-size: 10pt; width: 90%"><font style="font-size: 10pt"><b>Purpose of the Transaction</b></font></td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Since the Company&rsquo;s initial public
offering, in which the Reporting Persons sold approximately 60% of their Common Stock, the Reporting Persons have held Common Stock,
and have acquired additional securities of the Company, for investment purposes.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">The Reporting Persons may purchase additional
shares of Common Stock. Such acquisitions could be in the open market and/or in privately negotiated or structured transactions,
provided that any such acquisitions would be on terms deemed favorable by the Reporting Persons. In addition, the Reporting Persons
may formulate plans or proposals for, hold discussions with the Company's management, the Board, the Company's stockholders and
other parties about, and reserve the right to explore, or make plans or proposals relating to, transactions, discussions or actions
which relate to or would result in any of the matters specified in clauses (a) through (j) of Item 4 of Schedule 13D. The Reporting
Persons' consideration or discussion of any action would be based on their own assessment of various relevant considerations and
any subsequent developments affecting the Company and its prospects.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="vertical-align: top">
    <TD STYLE="width: 10%; font-size: 10pt"><font style="font-size: 10pt"><b>Item 5.</b></font></td>
    <TD STYLE="font-size: 10pt; width: 90%"><font style="font-size: 10pt"><b>Interest in Securities of the Issuer</b></font></td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">(a)&#9;&nbsp;&nbsp;Each of the Reporting Persons beneficially
owns, directly or indirectly, 37,092,394 shares of Common Stock, or 41.8% of the outstanding Common Stock. The shares of Common
Stock beneficially owned by the Reporting Persons (other than shares subject to options issued to Mr. Strothotte as further described
below) are held directly by Glencore AG. The shares reported as beneficially owned by the Reporting Persons: (i) do not include
the 7,922,553 shares of Common Stock issuable upon conversion of the 79,225.53 Preferred Shares held directly by Glencore AG that
are convertible only (a) upon the occurrence of events that have not transpired, or (b) in circumstances that would not result
in an increase in the percentage of shares of Common Stock beneficially owned by the Reporting Persons, and (ii) include 9,000
shares subject to presently exercisable options held directly by Mr. Willy R. Strothotte, who holds such options as nominee for
the Reporting Persons. The aggregate number and percentage of shares of Common Stock beneficially owned by each person (other than
the Reporting Persons) listed in Schedule 1 hereto is set forth opposite his or her name on Schedule 1 hereto.&nbsp;&nbsp;The beneficial
ownership percentages reported herein are based upon (i) 88,807,215 shares of Common Stock outstanding as of July 31, 2014, as
reported in the Company&rsquo;s Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2014, as filed with the Securities
and Exchange Commission on August 8, 2014, plus (ii) 9,000 shares which are subject to presently exercisable options which are
held directly by Mr. Strothotte as nominee for the Reporting Persons.&nbsp;&nbsp;Reference is made to the discussion of the terms
of the Certificate of Designation for the Preferred Shares in Item 6 of the Statement.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">(b)&#9;&nbsp;&nbsp;The Reporting Persons share the power
to vote or to direct the vote and dispose or to direct the disposition of 37,092,394 shares of Common Stock.&nbsp;&nbsp;To the
best knowledge of the Reporting Persons, each person (other than the Reporting Persons and any person holding shares as nominee
for the Reporting Persons) named in Item 2 of the Statement has the sole power to vote or to direct the vote and dispose or to
direct the disposition of the number of shares of Common Stock set forth opposite his or her name on Schedule 1 hereto.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">(c)&#9;&nbsp;&nbsp;None of the Reporting Persons nor,
to the Reporting Persons&rsquo; knowledge, any of the Schedule 1 Persons, has engaged in any transaction during the past 60 days,
in any Common Stock.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">(d) &#9;&nbsp;&nbsp;None.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">(e) &#9;&nbsp;&nbsp;Not applicable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="vertical-align: top">
    <TD STYLE="width: 10%; font-size: 10pt"><font style="font-size: 10pt"><b>Item 6.</b></font></td>
    <TD STYLE="font-size: 10pt; width: 90%"><font style="font-size: 10pt"><b>Contracts, Arrangements, Understandings or Relationships with Respect to Securities of the Issuer</b></font></td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On July 7, 2008 the Company entered into
a Stock Purchase Agreement with Glencore Investment Pty Ltd. (&quot;<U>Glencore Investment Pty</U>&quot;) pursuant to which Glencore
Investment Pty purchased the Preferred Shares.&nbsp;&nbsp;The following represents a summary of the terms of the agreements and
instruments relating to the July 7, 2008 purchase of the Preferred Shares that remain in effect:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Certificate of Designation:&nbsp;&nbsp;The rights and privileges
of the Series A Preferred Stock are set forth in a Certificate of Designation filed with the Secretary of State of the State of
Delaware on July 7, 2008 (the &quot;<U>Certificate of Designation</U>&quot;).&nbsp;&nbsp;The following summarizes the material
terms of the Series A Preferred Stock, as reflected in the Certificate of Designation:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><I>Dividends</I>.&nbsp;&nbsp;Dividends will be declared and
paid on the Series A Preferred Stock when, as and if, and in the same amounts (on an as-converted basis), declared and paid on
the Common Stock.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><I>Voting</I>.&nbsp;&nbsp;The Series A Preferred Stock has no
voting rights, except to vote as a separate class on any proposal to or that would amend, alter or repeal or otherwise change any
provision of the Company's Certificate of Incorporation or the Certificate of Designation if such amendment would increase or decrease
the number of authorized shares of Series A Preferred Stock, increase or decrease the par value of the Series A Preferred Stock
or alter or change the powers, preferences or special rights of the Series A Preferred Stock.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><I>Liquidation</I> <I>Preference</I>.&nbsp;&nbsp;Upon liquidation,
dissolution or winding up of the Company, holders of Series A Preferred Stock are entitled to a liquidation preference of $0.01
per share, and thereafter are entitled to share ratably (on an as-converted basis) with the Common Stock in the distribution of
any remaining assets (net of an amount equivalent to the aggregate amount of the liquidation preference).</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><I>Automatic</I> <I>Conversion</I>.&nbsp;&nbsp;The Series A
Preferred Stock shall be automatically converted into shares of Common Stock at a conversion ratio of 100 shares of Common Stock
for each share of Series A Preferred Stock (the &quot;<U>Conversion Ratio</U>&quot;) upon the occurrence of the following events:
(i) any event that would dilute the Reporting Persons' percentage ownership of Common Stock, to the extent necessary to maintain
the same percentage ownership as immediately prior to the diluting event; (ii) the sale or other transfer of Series A Preferred
Stock to non-affiliates of the Reporting Persons, and (iii) upon the consummation of any merger or business combination transaction
involving the Company or the sale of all or substantially all of the property or assets of the Company and its subsidiaries, unless
the consideration in the transaction is other than cash or marketable securities and the Reporting Persons have voted their Common
Stock against the transaction (in which case, the Series A Preferred Stock will be redeemed as described below).</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><I>Optional</I> <I>Conversion</I>.&nbsp;&nbsp;At the option
of each holder, the Series A Preferred Stock may be converted into Common Stock at the Conversion Ratio and tendered into a tender
or exchange offer in which a majority of the outstanding shares of Common Stock have been tendered.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><I>Mandatory</I> <I>Redemption</I>.&nbsp;&nbsp;If (i) the Company
proposes (x) to engage in a merger or business combination transaction involving the Company or to sell all or substantially all
of the property or assets of the Company and its subsidiaries in a transaction where the consideration payable to the holders of
Common Stock is other than cash, marketable securities or shares of the Company's subsidiaries, or (y) to dissolve and wind up
(other than as part of a transaction contemplated by (x)) and assets other than cash, marketable securities or shares of the Company's
subsidiaries will be distributed to the Company's stockholders, and (ii) the Reporting Persons vote any and all of their Common
Stock against the proposal, the Company must redeem all of the Series A Preferred Stock at a redemption price equivalent to the
average of the closing price for the Common Stock on Nasdaq for twenty (20) trading days starting twenty-two (22) trading days
before the first public announcement of the Company's proposal.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><I>Preemptive</I> <I>Rights</I>.&nbsp;&nbsp;If the Company proposes
to issue or sell, in a transaction directed to holders of Common Stock, any Common Stock or other stock ranking on parity with
the Common Stock (or any securities convertible or exchangeable for, or any options, warrants or other rights to subscribe for,
such stock) (but excluding issuances to employees and issuances triggered under a stockholders rights plan by acquisitions by the
Reporting Persons) at a price below the average of the closing price for the Common Stock on Nasdaq for twenty (20) trading days
starting twenty-two (22) trading days before the Board of Directors authorizes such issuance or sale, the holders of Series A Preferred
Stock must be given the opportunity to participate in such issuance on an as-converted basis.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><I>Transfer</I> <I>Restrictions</I>.&nbsp;&nbsp;Except for transfers
to pledgees (subject to certain conditions), the Series A Preferred Stock may be transferred only in widely-distributed public
offerings or in transactions that comply with Rule 144 under the Securities Act of 1933, as amended, and following any such transfer,
will automatically convert to Common Stock.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Standstill and Governance Agreement:&nbsp;&nbsp;In connection
with the Stock Purchase Agreement, on July 7, 2008 Glencore AG and the Company entered into a Standstill and Governance Agreement
(the &quot;<U>Governance Agreement</U>&quot;).&nbsp;&nbsp;Certain standstill obligations of Glencore AG and its affiliates under
the Governance Agreement expired on each of April 8, 2009 and January 7, 2010.&nbsp;&nbsp;No standstill obligations under the Governance
Agreement are currently binding on Glencore AG or any of its affiliates.&nbsp;&nbsp;The following is a summary of the material
terms of the Governance Agreement that remain in effect today:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><I>Board</I> <I>Representation</I>.&nbsp;&nbsp;The Reporting
Persons will have the right to designate a nominee for election to the Board of Directors, subject to the consent of the nominating
committee.&nbsp;&nbsp;This right will terminate if the Reporting Persons (and their affiliates) beneficially own less than 10%
of the Common Stock for a period of three continuous months.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Registration Rights Agreement:&nbsp;&nbsp;On July 7, 2008, Glencore
Investment Pty and the Company entered into a Registration Rights Agreement, containing customary terms and conditions (the &quot;<U>Registration
Rights Agreement</U>&quot;), pursuant to which the Company has agreed to register the Preferred Shares for resale by the Reporting
Persons and their affiliates and any of their respective pledgees.&nbsp;&nbsp;Sales under the Registration Rights Agreement must
be made in open market transactions that comply with Rule 144 under the Securities Act of 1933, as amended, or in widely distributed
public offerings.&nbsp;&nbsp;The Reporting Persons, their affiliates and any of their respective pledgees are entitled to demand
up to six registrations from and after November 5, 2008 and subject to certain customary restrictions, may at any time participate
in registered offerings initiated by the Company for its own account or the account of other stockholders.&nbsp;&nbsp;Under the
Certificate of Designation, Preferred Shares sold under the Registration Rights Agreement will automatically convert to shares
of Common Stock upon such sale.&nbsp;&nbsp;Subject to the restriction on the number of demand registrations, the registration rights
will continue until the Common Stock issued upon conversion of the Preferred Shares are sold under an effective registration statement
or the Preferred Shares are no longer outstanding.&nbsp;&nbsp;The Company will be responsible for all fees and expenses relating
to any registration of the Preferred Shares, except that the Reporting Persons will be responsible for any underwriters commissions
and any fees and expenses of their legal counsel and any other advisors retained by them (including underwriters' counsel in the
case of demand registrations).</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Support Agreement: The Company disclosed in its notice of Annual
Meeting of Stockholders held on May 27, 2009 and related proxy statement a management proposal to amend the Company's Restated
Certificate of Incorporation to increase the number of authorized shares of Common Stock.&nbsp;&nbsp;Following filing of the proxy
statement, Glencore AG and the Company engaged in discussions relating to the proposed increase in the Company's authorized capital.&nbsp;&nbsp;The
Company determined to amend the proposal to provide for an increase in the number of authorized shares of Common Stock from 100,000,000
to 195,000,000, and on May 4, 2009, the Company and Glencore AG entered into a Support Agreement (the &quot;<U>Support Agreement</U>&quot;)
whereby (a) Glencore AG agreed to vote for the amended proposal to increase authorized capital and the other matters being proposed
by the Company for approval at the May 27, 2009 stockholders meeting, and (b) except for certain limited and strategic transactions
and other customary exceptions, the Company agreed to give the Reporting Persons the right to maintain their equity percentage
ownership in the Company by purchasing (i) their pro rata portion of additional shares of Common Stock and other securities or
interests convertible into or exchangeable or exercisable for Common Stock (including cash settled derivatives) issued by the Company
and its affiliates in cash offerings and (ii) additional shares of Common Stock and other securities or interests convertible into
or exchangeable or exercisable for Common Stock (including cash settled derivatives) issued by the Company and its affiliates in
any debt exchange offers if and to the extent the aggregate cumulative number of shares of Common Stock or their equivalent issued
in debt exchanges in any twelve month period prior to November 4, 2010 would equal or exceed 30 million shares.&nbsp;&nbsp;The
right to acquire securities will terminate if the Reporting Persons beneficially own less than 10% of the Common Stock for a period
of three continuous months.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Letter Agreement:&nbsp;&nbsp;On April 6, 2010, Glencore International
and Glencore AG entered into a letter agreement with the Company (the &quot;<U>Letter Agreement</U>&quot;).&nbsp;&nbsp;Pursuant
to the terms of the Letter Agreement, the Company agreed to increase the size of its Board of Directors to 11 members prior to
the Company's 2010 Annual Meeting of Stockholders (the &quot;<U>2010 Annual Meeting</U>&quot;) and to cause the slate of nominees
standing for election to the Board of Directors at the 2010 Annual Meeting to include (i) Ivan Glasenberg, Andrew Michelmore, John
O'Brien and Peter Jones, each of whom were nominated as Class II directors of the Company with a term expiring at the Company's
2013 Annual Meeting of Stockholders, and (ii) John Fontaine, who was nominated as a Class I director of the Company with a term
expiring at the Company's 2012 Annual Meeting of Stockholders.&nbsp;&nbsp;At the 2010 Annual Meeting held on June 8, 2010, Messrs.
Glasenberg, Michelmore, O'Brien, Jones and Fontaine were elected to the Board of Directors.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">As part of the Letter Agreement, the Company further agreed
that if, after having been elected to the Board of Directors, Mr. Glasenberg ceases to be a member of the Board of Directors for
any reason at or prior to the Company's 2013 Annual Meeting of Stockholders, the Reporting Persons will have the ability to designate
a substitute reasonably acceptable to the Company to replace Mr. Glasenberg as a director, with such determination regarding acceptability
to be made by the Company in good faith and reasonably promptly.&nbsp;&nbsp;Any such substitute director will be appointed by the
Board of Directors no later than one business day after such determination. On January 31, 2011, Mr. Glasenberg resigned from the
Board of Directors. In accordance with the terms of the Letter Agreement, Glencore International and Glencore AG designated Daniel
Goldberg to replace Mr. Glasenberg as a director of the Company. On January 31, 2011, the Board of Directors of the Company appointed
Mr. Goldberg, as a replacement for Mr. Glasenberg, as a Class II director of the Company with a term expiring at the Company's
2013 Annual Meeting of Stockholders.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Swaps:&nbsp;&nbsp;On July 2, 2010, Glencore International entered
into a Master Terms and Conditions for Swap Transactions agreement (the &quot;<U>Swap Agreement</U>&quot;) with Citigroup Global
Markets Inc. (&quot;<U>Citi</U>&quot;).&nbsp;&nbsp;Pursuant to the Swap Agreement, Glencore International AG and Citi may, from
time to time, enter into certain cash-settled total return swaps (the &quot;<U>Swaps</U>&quot;) with respect to the Common Stock.&nbsp;&nbsp;Among
other things, the Swap Agreement provides that all transactions thereunder will not reference more than 9.9% of the outstanding
Common Stock.&nbsp;&nbsp;In connection with establishing and maintaining any hedging positions with respect to the Swaps, the Swap
Agreement provides that Citi must establish and maintain such hedging positions in transactions consisting of cash-settled swaps,
cash-settled options or other equivalent cash-settled &quot;synthetic&quot; positions.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Under the terms of the Swaps, generally, (i) Glencore International
will be obligated to post cash collateral to Citi, pay to Citi certain fees and commissions and make a cash payment to Citi with
respect to any depreciation in the volume weighted average price of the Common Stock from the initial averaging period for a Swap
to a final valuation period preceding the termination of the Swap, and (ii) Citi will be obligated to pay to Glencore International
an amount in cash equal to any dividends that would have been paid by the Company on the Common Stock referenced by each Swap and
make a cash payment to Glencore International with respect to any appreciation in the volume weighted average price of the Common
Stock from the initial averaging period for a Swap to the final valuation period preceding the termination of the Swap.&nbsp;&nbsp;The
overall effect of the Swap parties' cash payments based on the price of the Common Stock referenced in the Swaps is to provide
Glencore International with economic exposure to price movements in the number of shares of Common Stock referenced in the Swaps
during the relevant time periods.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">The Swaps will not give the Reporting Persons direct or indirect
voting, investment or dispositive control over any securities of the Company and will not require Citi to acquire, hold, vote or
dispose of any securities of the Company.&nbsp;&nbsp;Accordingly, the Reporting Persons disclaim any beneficial ownership of any
shares of Common Stock that may be referenced in the Swaps or shares of Common Stock or other securities or financial instruments
of the Company that may be held from time to time by Citi.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">In connection with entry into the Swaps, the Company and Glencore
International have agreed that the Swaps and the transactions contemplated thereby would (i) not result in the Glencore International
or Citi, or any of their respective affiliates or associates, being deemed to be a &quot;Beneficial Owner&quot; of, or to &quot;beneficially
own&quot; any, shares of Common Stock, or constitute an &quot;Acquiring Person&quot; for purposes of the Company's Tax Benefit
Preservation Plan, dated as of September 29, 2009 (the &quot;<U>Rights Plan</U>&quot;), and (ii) be deemed to constitute &quot;Exempt
Transactions&quot; pursuant to, and in accordance with, Section 35 of the Rights Agreement.&nbsp;&nbsp;Capitalized terms used in
the preceding sentence and not otherwise defined in the Schedule 13D shall have the meaning ascribed to them in the Rights Plan.
The Rights Plan expired by its terms on September 29, 2010.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Pursuant to the Swap Agreement, on September 15, 2010 Glencore
International received economic exposure to 4,729,302 notional shares of Common Stock, or approximately 5.08% of the outstanding
Common Stock (approximately 5.32% based on the number of outstanding shares set forth in Item 5), at a reference price of $9.71927
per notional share of Common Stock, under a swap with an initial expiration date of September 17, 2012 (subsequently extended to
September 17, 2017).</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Pursuant to the Swap Agreement, on March 11, 2011 Glencore International
received economic exposure to 4,400,000 notional shares of Common Stock, or approximately 4.73% of the outstanding Common Stock
(approximately 4.95% based on the number of outstanding shares set forth in Item 5), at a reference price of $16.6582 per notional
share of Common Stock, under a swap with an initial expiration date of March 11, 2013 (subsequently extended to September 17, 2017).</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">2011 Agreement: On April 5, 2011, Glencore International and
Glencore AG entered into a letter agreement with the Company (the &quot;<U>2011 Agreement</U>&quot;). Pursuant to the terms of
the 2011 Agreement, the Company agreed to cause the slate of nominees standing for election to the Company's Board of Directors
(the &quot;<U>Board</U>&quot;) at the Company's 2011 Annual Meeting of Stockholders (the &quot;<U>2011 Annual Meeting</U>&quot;)
to be Steven Blumgart, Steven Kalmin and Terence Wilkinson (each, a &quot;<U>Nominee</U>&quot; and collectively, the &quot;<U>Nominees</U>&quot;),
each of whom shall be nominated as Class III directors of the Company with a term expiring at the Company's 2014 Annual Meeting
of Stockholders. Mr. Blumgart, the Co-director of the Alumina/Aluminum division of Glencore International, and Mr. Kalmin, Chief
Financial Officer of Glencore International, are also referred to as the &quot;<U>Glencore Designees</U>&quot; and Mr. Wilkinson
is also referred to as the &quot;<U>Independent Designee</U>.&quot; At the 2011 Annual Meeting held on June 7, 2011, Messrs. Blumgart,
Kalmin and Wilkinson were elected to the Board of Directors.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">As part of the 2011 Agreement the Company further agreed that
if at any time after having been elected to the Board, either of the Glencore Designees ceases to be a member of the Board for
any reason at or prior to the Company's 2014 Annual Meeting of Stockholders, the Reporting Persons would have the ability to designate
a substitute reasonably acceptable to the Company to replace such Glencore Designee(s) as director(s), with such determination
regarding acceptability to be made by the Company in good faith and reasonably promptly. Any such substitute nominee or director
(as the case may be) will be nominated or appointed (as the case may be) by the Board no later than one business day after such
determination. On March 16, 2012, the Reporting Persons informed the Company that Mr. Blumgart intended to resigned from the Board
of Directors effective March 20, 2012. In accordance with the terms of the 2011 Agreement, the Reporting Persons designated Andrew
J. Caplan to replace Mr. Blumgart as a director of the Company. On March 20, 2012, the Board of Directors of the Company appointed
Mr. Caplan as a replacement for Mr. Blumgart, as a Class III director of the Company with a term scheduled to expire at the Company's
2014 Annual Meeting of Stockholders.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">The foregoing descriptions of the Certificate of Designation,
Governance Agreement, Registration Rights Agreement, Support Agreement, Letter Agreement, Swap Agreement and 2011 Agreement are
subject to, and qualified in their entirety by reference to, the full text of such documents and agreements, which were previously
filed with the Securities and Exchange Commission as exhibits to the Schedule 13D, and are hereby incorporated herein by reference.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Except for terms of the Certificate of Designation and the agreements
described above in this Item 6, to the best knowledge of the Reporting Persons, there exists no contracts, arrangements, understandings
or relationships (legal or otherwise) among the persons named in Item 2 and between such persons and any person with respect to
any securities of the Company, including but not limited to the transfer or voting of any securities of the Company, finder's fees,
joint ventures, loan or option arrangements, puts or calls, guarantees of profits, division of profits or loss, or the giving or
withholding of proxies.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 10%; font-size: 10pt"><FONT STYLE="font-size: 10pt"><B>Item 7.</B></FONT></TD>
    <TD STYLE="width: 90%; font-size: 10pt"><FONT STYLE="font-size: 10pt"><B>Material to Be Filed as Exhibits</B></FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 48px; font-size: 10pt"><FONT STYLE="font-size: 10pt">1.</FONT></TD>
    <TD STYLE="font-size: 10pt"><FONT STYLE="font-size: 10pt">Joint Filing Agreement, dated September 17, 2014, between Glencore plc, Glencore International AG and Glencore AG relating to the filing of a joint statement on Schedule 13D.</FONT></TD></TR>
</TABLE>


<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="vertical-align: top">
    <td style="width: 48px; font-size: 10pt"><font style="font-size: 10pt">2.</font></td>
    <td style="font-size: 10pt"><font style="font-size: 10pt">Certificate of Designation of the Series A Preferred Stock (Incorporated by reference to Exhibit 3.1 to the Company's Current Report on Form 8-K filed with the Securities and Exchange Commission on July 8, 2008).</font></td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="vertical-align: top">
    <td style="width: 48px; font-size: 10pt"><font style="font-size: 10pt">3.</font></td>
    <td style="font-size: 10pt"><font style="font-size: 10pt">Standstill and Governance Agreement (Incorporated by reference to Exhibit 10.3 to the Company's Current Report on Form 8-K filed with the Securities and Exchange Commission on July 8, 2008).</font></td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="vertical-align: top">
    <td style="width: 48px; font-size: 10pt"><font style="font-size: 10pt">4.</font></td>
    <td style="font-size: 10pt"><font style="font-size: 10pt">Registration Rights Agreement (Incorporated by reference to Exhibit 10.4 to the Company's Current Report on Form 8-K filed with the Securities and Exchange Commission on July 8, 2008).</font></td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="vertical-align: top">
    <td style="width: 48px; font-size: 10pt"><font style="font-size: 10pt">5.</font></td>
    <td style="font-size: 10pt"><font style="font-size: 10pt">Support Agreement (Incorporated by reference to Exhibit 10.01 to the Company's Current Report on Form 8-K filed with the Securities and Exchange Commission on May 4, 2009).</font></td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="vertical-align: top">
    <td style="width: 48px; font-size: 10pt"><font style="font-size: 10pt">6.</font></td>
    <td style="font-size: 10pt"><font style="font-size: 10pt">Letter Agreement (Incorporated by reference to Exhibit 6 to the Schedule 13D filed with the Securities and Exchange Commission on April 7, 2010). </font></td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="vertical-align: top">
    <td style="width: 48px; font-size: 10pt"><font style="font-size: 10pt">7.</font></td>
    <td style="font-size: 10pt"><font style="font-size: 10pt">Master Terms and Conditions for Swap Transactions (Incorporated by reference to Exhibit 7 to the Schedule 13D filed with the Securities and Exchange Commission on July 6, 2010). </font></td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="vertical-align: top">
    <td style="width: 48px; font-size: 10pt"><font style="font-size: 10pt">8.</font></td>
    <td style="font-size: 10pt"><font style="font-size: 10pt">Consent Under Rights Plan (Incorporated by reference to Exhibit 8 to the Schedule 13D filed with the Securities and Exchange Commission on July 6, 2010). </font></td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="vertical-align: top">
    <td style="width: 48px; font-size: 10pt"><font style="font-size: 10pt">9.</font></td>
    <td style="font-size: 10pt"><font style="font-size: 10pt">2011 Agreement (Incorporated by reference to Exhibit 9 to the Schedule 13D filed with the Securities and Exchange Commission on April 6, 2011).</font></td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SIGNATURE</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">After reasonable inquiry and to the best
of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Date: September 17, 2014</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: left; margin-bottom: 0pt"><B>Glencore AG</B></P>

</TD>
    <TD STYLE="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
<tr style="vertical-align: top">
    <td style="width: 41%; padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td>
    <td style="width: 6%; padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><font style="font-size: 10pt">By:</font></td>
    <td style="width: 28%; border-bottom: Black 1.5pt solid; padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><font style="font-size: 10pt">/s/ Andreas Hubmann</font></td>
    <td style="width: 25%; padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><font style="font-size: 10pt">Name:</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><font style="font-size: 10pt">Andreas Hubmann</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><font style="font-size: 10pt">Title:</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><font style="font-size: 10pt">Director</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><font style="font-size: 10pt">By:</font></td>
    <td style="border-bottom: Black 1.5pt solid; padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><font style="font-size: 10pt">/s/ Martin Haering</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><font style="font-size: 10pt">Name:</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><font style="font-size: 10pt">Martin Haering</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><font style="font-size: 10pt">Title:</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><font style="font-size: 10pt">Officer</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td></tr>
</table>


<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: left; margin-bottom: 0pt"><B>Glencore International AG</B></P>

</TD>
    <TD STYLE="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
<tr style="vertical-align: top">
    <td style="width: 41%; padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td>
    <td style="width: 6%; padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><font style="font-size: 10pt">By:</font></td>
    <td style="width: 28%; border-bottom: Black 1.5pt solid; padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><font style="font-size: 10pt">/s/ Andrew Caplan</font></td>
    <td style="width: 25%; padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><font style="font-size: 10pt">Name:</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><font style="font-size: 10pt">Andrew Caplan</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><font style="font-size: 10pt">Title:</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><font style="font-size: 10pt">Officer</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><font style="font-size: 10pt">By:</font></td>
    <td style="border-bottom: Black 1.5pt solid; padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><font style="font-size: 10pt">/s/ Stefan Peter</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><font style="font-size: 10pt">Name:</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><font style="font-size: 10pt">Stefan Peter</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><font style="font-size: 10pt">Title:</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><font style="font-size: 10pt">Officer</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td></tr>
</table>


<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: left; margin-bottom: 0pt"><B>Glencore plc</B></P>

</TD>
    <TD STYLE="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
<tr style="vertical-align: top">
    <td style="width: 41%; padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td>
    <td style="width: 6%; padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><font style="font-size: 10pt">By:</font></td>
    <td style="width: 28%; border-bottom: Black 1.5pt solid; padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><font style="font-size: 10pt">/s/ Ivan Glasenberg</font></td>
    <td style="width: 25%; padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><font style="font-size: 10pt">Name:</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><font style="font-size: 10pt">Ivan Glasenberg</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><font style="font-size: 10pt">Title:</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt"><font style="font-size: 10pt">Director</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SCHEDULE 1</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Set forth below are the names, business
addresses and present principal occupations of the directors and executive officers of Glencore plc, Glencore International AG
and Glencore AG. Each executive officer of each of Glencore International AG and Glencore AG is also a director of such company.
Where no business address is given for an executive officer or director, and such director&rsquo;s principal employer is Glencore
plc or one of its subsidiaries, the business address is Baarermattstrasse 3, CH-6341, Baar, Switzerland. To the best knowledge
of the Reporting Persons, none of the persons listed below beneficially owns any shares of Common Shares.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Directors of Glencore plc:</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="vertical-align: bottom">
    <td style="width: 20%; border-bottom: black 1.5pt solid"><font style="font-size: 10pt"><b><i>Name</i></b></font></td>
    <td style="width: 1%; padding-bottom: 1.5pt"><font style="font-size: 10pt"><b><i>&nbsp;</i></b></font></td>
    <td style="width: 27%; border-bottom: black 1.5pt solid"><font style="font-size: 10pt"><b><i>Principal Occupation</i></b></font></td>
    <td style="width: 1%; padding-bottom: 1.5pt"><font style="font-size: 10pt"><b><i>&nbsp;</i></b></font></td>
    <td style="width: 19%; border-bottom: black 1.5pt solid"><font style="font-size: 10pt"><b><i>Business address</i></b></font></td>
    <td style="width: 1%; padding-bottom: 1.5pt"><font style="font-size: 10pt"><b><i>&nbsp;</i></b></font></td>
    <td style="width: 31%; border-bottom: black 1.5pt solid"><font style="font-size: 10pt"><b><i>Share Ownership</i></b></font></td></tr>
<tr style="vertical-align: top; background-color: white">
    <td>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Ivan Glasenberg (Citizen of Australia)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td><font style="font-size: 10pt">Chief Executive Officer</font></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td><font style="font-size: 10pt">&nbsp;&nbsp;</font></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td></tr>
<tr style="vertical-align: top; background-color: #CCFFCC">
    <td>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Anthony Hayward</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(Citizen of the United Kingdom)</P></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td><font style="font-size: 10pt">Chairman </font></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Genel Energy</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">31 St. James&rsquo;s Place</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">London SW1A 1NR</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">United Kingdom</P></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td><font style="font-size: 10pt">&nbsp;&nbsp;</font></td></tr>
<tr style="vertical-align: top; background-color: white">
    <td>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Peter Coates</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(Citizen of Australia)</P></td>
    <td>&nbsp;</td>
    <td><font style="font-size: 10pt">Director </font></td>
    <td>&nbsp;</td>
    <td><font style="font-size: 10pt">Level 38, The Gateway Building, 1 Macquarie Place, Sydney, Australia</font></td>
    <td>&nbsp;</td>
    <td>&nbsp;</td></tr>
<tr style="vertical-align: top; background-color: #CCFFCC">
    <td>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Leonhard Fischer</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(Citizen of Germany)</P></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td><font style="font-size: 10pt">Chief Executive Officer, RHJ International S.A.</font></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">RHJ International</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Bahnhofstrasse 69a</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Zuerich 8001</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Switzerland</P></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td>&nbsp;</td></tr>
<tr style="vertical-align: top; background-color: white">
    <td>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Peter Grauer</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(Citizen of USA)</P></td>
    <td>&nbsp;</td>
    <td>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Executive Chairman</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Bloomberg LP</P></td>
    <td>&nbsp;</td>
    <td>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">731 Lexington Avenue, New York</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">10022, USA</P></td>
    <td>&nbsp;</td>
    <td>&nbsp;</td></tr>
<tr style="vertical-align: top; background-color: #CCFFCC">
    <td>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">William Macaulay</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(Citizen of USA)</P></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td><font style="font-size: 10pt">Chairman and Chief Executive Officer, First Reserve Corporation</font></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">First Reserve Corporation</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">One Lafayette Place</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Greenwich,</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">CT 06830</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">USA</P></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td>&nbsp;</td></tr>
<tr style="vertical-align: top; background-color: white">
    <td>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">John Mack</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(Citizen of USA)</P></td>
    <td>&nbsp;</td>
    <td><font style="font-size: 10pt">Senior advisor to Morgan Stanley</font></td>
    <td>&nbsp;</td>
    <td>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">6 Club Road, Rye, New York 10580,</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">USA</P></td>
    <td>&nbsp;</td>
    <td>&nbsp;</td></tr>
<tr style="vertical-align: top; background-color: white">
    <td>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Patrice Merrin</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(Citizen of Canada)</P></td>
    <td>&nbsp;</td>
    <td><font style="font-size: 10pt">Director</font></td>
    <td>&nbsp;</td>
    <td>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Glencore</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Baarermattstrasse 3</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Baar 6341</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Switzerland</P></td>
    <td>&nbsp;</td>
    <td>&nbsp;</td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Executive Officers of Glencore plc:</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="vertical-align: bottom">
    <td style="width: 20%; border-bottom: black 1.5pt solid"><font style="font-size: 10pt"><b><i>Name</i></b></font></td>
    <td style="width: 1%; padding-bottom: 1.5pt"><font style="font-size: 10pt"><b><i>&nbsp;</i></b></font></td>
    <td style="width: 27%; border-bottom: black 1.5pt solid"><font style="font-size: 10pt"><b><i>Principal Occupation</i></b></font></td>
    <td style="width: 1%; padding-bottom: 1.5pt"><font style="font-size: 10pt"><b><i>&nbsp;</i></b></font></td>
    <td style="width: 19%; border-bottom: black 1.5pt solid"><font style="font-size: 10pt"><b><i>Business address</i></b></font></td>
    <td style="width: 1%; padding-bottom: 1.5pt"><font style="font-size: 10pt"><b><i>&nbsp;</i></b></font></td>
    <td style="width: 31%; border-bottom: black 1.5pt solid"><font style="font-size: 10pt"><b><i>Share Ownership</i></b></font></td></tr>
<tr style="vertical-align: top; background-color: white">
    <td><font style="font-size: 10pt">Ivan Glasenberg (Citizen of Australia)</font></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td><font style="font-size: 10pt">Chief Executive Officer</font></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td><font style="font-size: 10pt">&nbsp;&nbsp;</font></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td></tr>
<tr style="vertical-align: top; background-color: #CCFFCC">
    <td>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Steven Kalmin</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(Citizen of Australia)</P></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td><font style="font-size: 10pt">Chief Financial Officer </font></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td>&nbsp;</td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td><font style="font-size: 10pt">&nbsp;&nbsp;</font></td></tr>
<tr style="vertical-align: top">
    <td>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">John Burton</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(Citizen of the United Kingdom)</P></td>
    <td>&nbsp;</td>
    <td><font style="font-size: 10pt">Company Secretary</font></td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Directors and Officers of Glencore International AG:</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="vertical-align: bottom">
    <td style="width: 20%; border-bottom: black 1.5pt solid"><font style="font-size: 10pt"><b><i>Name</i></b></font></td>
    <td style="width: 1%; padding-bottom: 1.5pt"><font style="font-size: 10pt"><b><i>&nbsp;</i></b></font></td>
    <td style="width: 27%; border-bottom: black 1.5pt solid"><font style="font-size: 10pt"><b><i>Principal Occupation</i></b></font></td>
    <td style="width: 1%; padding-bottom: 1.5pt"><font style="font-size: 10pt"><b><i>&nbsp;</i></b></font></td>
    <td style="width: 19%; border-bottom: black 1.5pt solid"><font style="font-size: 10pt"><b><i>Business address</i></b></font></td>
    <td style="width: 1%; padding-bottom: 1.5pt"><font style="font-size: 10pt"><b><i>&nbsp;</i></b></font></td>
    <td style="width: 31%; border-bottom: black 1.5pt solid"><font style="font-size: 10pt"><b><i>Share Ownership</i></b></font></td></tr>
<tr style="vertical-align: top; background-color: white">
    <td><font style="font-size: 10pt">Ivan Glasenberg (Citizen of Australia)</font></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td><font style="font-size: 10pt">Chief Executive Officer</font></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td><font style="font-size: 10pt">&nbsp;&nbsp;</font></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td>&nbsp;</td></tr>
<tr style="vertical-align: top; background-color: #CCFFCC">
    <td>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Steven Kalmin</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(Citizen of Australia)</P></td>
    <td>&nbsp;</td>
    <td><font style="font-size: 10pt">Chief Financial Officer</font></td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td>&nbsp;</td></tr>
<tr style="vertical-align: top; background-color: white">
    <td>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Andreas P. Hubmann</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(Citizen of Switzerland)</P></td>
    <td>&nbsp;</td>
    <td><font style="font-size: 10pt">Accountant</font></td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Directors and Officers of Glencore AG:</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="vertical-align: top">
    <td style="width: 20%; border-bottom: black 1.5pt solid"><font style="font-size: 10pt"><b><i>Name</i></b></font></td>
    <td style="width: 1%; padding-bottom: 1.5pt"><font style="font-size: 10pt"><b><i>&nbsp;</i></b></font></td>
    <td style="width: 27%; border-bottom: black 1.5pt solid"><font style="font-size: 10pt"><b><i>Principal Occupation</i></b></font></td>
    <td style="width: 1%; padding-bottom: 1.5pt"><font style="font-size: 10pt"><b><i>&nbsp;</i></b></font></td>
    <td style="width: 19%; border-bottom: black 1.5pt solid"><font style="font-size: 10pt"><b><i>Business address</i></b></font></td>
    <td style="width: 1%; padding-bottom: 1.5pt"><font style="font-size: 10pt"><b><i>&nbsp;</i></b></font></td>
    <td style="width: 31%; border-bottom: black 1.5pt solid"><font style="font-size: 10pt"><b><i>Share Ownership</i></b></font></td></tr>
<tr style="vertical-align: top; background-color: white">
    <td><font style="font-size: 10pt">Ivan Glasenberg (Citizen of Australia)</font></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td><font style="font-size: 10pt">Chief Executive Officer</font></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td><font style="font-size: 10pt">&nbsp;&nbsp;</font></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td>&nbsp;</td></tr>
<tr style="vertical-align: top; background-color: #CCFFCC">
    <td><font style="font-size: 10pt">Steven F. Kalmin (Citizen of Australia)</font></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td><font style="font-size: 10pt">Chief Financial Officer</font></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td><font style="font-size: 10pt">&nbsp;&nbsp;</font></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td>&nbsp;</td></tr>
<tr style="vertical-align: top; background-color: white">
    <td><font style="font-size: 10pt">Andreas P. Hubmann (Citizen of Switzerland)</font></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td><font style="font-size: 10pt">Accountant</font></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td><font style="font-size: 10pt">&nbsp;&nbsp;</font></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td>&nbsp;</td></tr>
<tr style="vertical-align: top; background-color: #CCFFCC">
    <td><font style="font-size: 10pt">Aristotelis Mistakidis (Citizen of the United Kingdom)</font></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td><font style="font-size: 10pt">Director Copper </font></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td><font style="font-size: 10pt">&nbsp;&nbsp;</font></td>
    <td><font style="font-size: 10pt">&nbsp;</font></td>
    <td>&nbsp;</td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"><B>EXHIBIT 1</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>JOINT FILING AGREEMENT</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Each of the undersigned hereby agrees that
this Amendment No. 19to the statement on Schedule 13D is being filed with the Securities and Exchange Commission on behalf of each
of the undersigned pursuant to Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Dated: September 17, 2014</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>



<table cellspacing="0" cellpadding="0" style="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: left; margin-bottom: 0pt"><B>Glencore AG</B></P>

</TD>
    <TD STYLE="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
<tr style="vertical-align: top">
    <td style="width: 41%; padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td>
    <td style="width: 6%; padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><font style="font-size: 10pt">By:</font></td>
    <td style="width: 28%; border-bottom: Black 1.5pt solid; padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><font style="font-size: 10pt">/s/ Andreas Hubmann</font></td>
    <td style="width: 25%; padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><font style="font-size: 10pt">Name:</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><font style="font-size: 10pt">Andreas Hubmann</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><font style="font-size: 10pt">Title:</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><font style="font-size: 10pt">Director</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><font style="font-size: 10pt">By:</font></td>
    <td style="border-bottom: Black 1.5pt solid; padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><font style="font-size: 10pt">/s/ Martin Haering</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><font style="font-size: 10pt">Name:</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><font style="font-size: 10pt">Martin Haering</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><font style="font-size: 10pt">Title:</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><font style="font-size: 10pt">Officer</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td></tr>
</table>




<table cellspacing="0" cellpadding="0" style="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: left; margin-bottom: 0pt"><B>Glencore International AG</B></P>

</TD>
    <TD STYLE="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
<tr style="vertical-align: top">
    <td style="width: 41%; padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td>
    <td style="width: 6%; padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><font style="font-size: 10pt">By:</font></td>
    <td style="width: 28%; border-bottom: Black 1.5pt solid; padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><font style="font-size: 10pt">/s/ Andrew Caplan</font></td>
    <td style="width: 25%; padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><font style="font-size: 10pt">Name:</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><font style="font-size: 10pt">Andrew Caplan</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><font style="font-size: 10pt">Title:</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><font style="font-size: 10pt">Officer</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><font style="font-size: 10pt">By:</font></td>
    <td style="border-bottom: Black 1.5pt solid; padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><font style="font-size: 10pt">/s/ Stefan Peter</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><font style="font-size: 10pt">Name:</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><font style="font-size: 10pt">Stefan Peter</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><font style="font-size: 10pt">Title:</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><font style="font-size: 10pt">Officer</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td></tr>
</table>




<table cellspacing="0" cellpadding="0" style="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: left; margin-bottom: 0pt"><B>Glencore plc</B></P>

</TD>
    <TD STYLE="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
<tr style="vertical-align: top">
    <td style="width: 41%; padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td>
    <td style="width: 6%; padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><font style="font-size: 10pt">By:</font></td>
    <td style="width: 28%; border-bottom: Black 1.5pt solid; padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><font style="font-size: 10pt">/s/ Ivan Glasenberg</font></td>
    <td style="width: 25%; padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><font style="font-size: 10pt">Name:</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><font style="font-size: 10pt">Ivan Glasenberg</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><font style="font-size: 10pt">Title:</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt"><font style="font-size: 10pt">Director</font></td>
    <td style="padding-top: 12pt; padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>



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