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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 18pt"><B>UNITED
STATES<BR>
SECURITIES AND EXCHANGE COMMISSION<BR>
</B></FONT><B><FONT STYLE="font-size: 10pt">Washington, D.C. 20549</FONT></B></P>

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<P STYLE="font: 18pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><B>FORM 8-K</B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>CURRENT REPORT<BR>
PURSUANT TO SECTION 13 OR 15(d) OF THE<BR>
SECURITIES EXCHANGE ACT OF 1934</B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Date of Report (Date of earliest event reported):
<B>October 23, 2012</B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 18pt"><B>Chemtura
Corporation<BR>
</B></FONT><FONT STYLE="font-size: 10pt">(Exact name of registrant as specified in its charter)</FONT></P>

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    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><B>Delaware<BR>
</B>(State or other jurisdiction<BR>
&nbsp;of incorporation)</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt; text-align: center"><B>1-15339<BR>
</B>(Commission file number)</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; text-align: center"><B>52-2183153<BR>
</B>(IRS employer identification<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;number)</TD></TR>
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    <TD COLSPAN="7" STYLE="padding-right: 5.4pt; padding-left: 5.4pt; font-size: 10pt">&nbsp;</TD></TR>
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    <TD COLSPAN="3" STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>1818 Market Street, Suite 3700, Philadelphia,
        Pennsylvania</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>199 Benson Road, Middlebury, Connecticut<BR>
        </B>(Address of principal executive offices)</P></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>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt"><B>19103</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>06749<BR>
        </B>(Zip Code)</P></TD></TR>
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    <TD STYLE="width: 28%">&nbsp;</TD>
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    <TD STYLE="width: 30%">&nbsp;</TD></TR>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 10pt"><B>(203) 573-2000<BR>
</B>(Registrant's telephone number, including area code)</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-size: 10pt">Check the appropriate box below
if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following
provisions (see General Instruction A.2. below):<BR>
<BR>
<FONT STYLE="font-family: Wingdings 2">&#163;</FONT> Written communications pursuant to Rule 425 under the Securities Act (17
CFR 230.425)<BR>
<BR>
<FONT STYLE="font-family: Wingdings 2">&#163;</FONT> Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
240.14a-12)<BR>
<BR>
<FONT STYLE="font-family: Wingdings 2">&#163;</FONT> Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange
Act (17 CFR 240.14d-2(b))<BR>
<BR>
<FONT STYLE="font-family: Wingdings 2">&#163;</FONT> Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange
Act (17 CFR 240.13e-4(c))</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Item 5.02 Departure of Directors or Certain Officers; Election
of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.</B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On October 23, 2012, Kevin V. Mahoney resigned
from his position as Senior Vice President, Corporate Controller (Principal Accounting Officer), effective November 9, 2012, to
pursue other opportunities. The duties of the Principal Accounting Officer will be performed on an interim basis by Stephen C.
Forsyth, Executive Vice President and Chief Financial Officer, until the Company appoints a new Principal Accounting Officer.</P>

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

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;&#9;Pursuant to the requirements of the Securities Exchange
Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.</P>

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        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><U>Chemtura Corporation<BR>
        </U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(Registrant)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P></TD></TR>
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    <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">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0in">By: <U>/s/ Billie S. Flaherty</U></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in">Name: Billie S. Flaherty</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in">Title: SVP, General Counsel &amp; Secretary</P></TD></TR>
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<TD STYLE="width: 0"></TD><TD STYLE="width: 0.5in">Date:</TD><TD>October 29, 2012</TD></TR></TABLE>



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{"company-data": {"conformed-name": "Chemtura CORP", "cik": "0001091862", "assigned-sic": "2820", "irs-number": "522183153", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-15339", "film-number": "121166054"}, "business-address": {"street1": "BENSON ROAD", "city": "MIDDLEBURY", "state": "CT", "zip": "06749", "phone": "2035732000"}, "mail-address": {"street1": "BENSON ROAD", "city": "MIDDLEBURY", "state": "CT", "zip": "06749"}, "former-company": [{"former-conformed-name": "CROMPTON CORP", "date-changed": "20000512"}, {"former-conformed-name": "CK WITCO CORP", "date-changed": "19990727"}]}
UNITED
STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-K
CURRENT REPORT
PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934
Date of Report (Date of earliest event reported):
October 23, 2012
Chemtura
Corporation
(Exact name of registrant as specified in its charter)
Delaware
(State or other jurisdiction
of incorporation)
1-15339
(Commission file number)
52-2183153
(IRS employer identification
number)
1818 Market Street, Suite 3700, Philadelphia,
        Pennsylvania
199 Benson Road, Middlebury, Connecticut
(Address of principal executive offices)
19103
06749
(Zip Code)
(203) 573-2000
(Registrant's telephone number, including area code)
Check the appropriate box below
if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following
provisions (see General Instruction A.2. below):
£
Written communications pursuant to Rule 425 under the Securities Act (17
CFR 230.425)
£
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
240.14a-12)
£
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange
Act (17 CFR 240.14d-2(b))
£
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange
Act (17 CFR 240.13e-4(c))
Item 5.02 Departure of Directors or Certain Officers; Election
of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.
On October 23, 2012, Kevin V. Mahoney resigned
from his position as Senior Vice President, Corporate Controller (Principal Accounting Officer), effective November 9, 2012, to
pursue other opportunities. The duties of the Principal Accounting Officer will be performed on an interim basis by Stephen C.
Forsyth, Executive Vice President and Chief Financial Officer, until the Company appoints a new Principal Accounting Officer.
Signatures
Pursuant to the requirements of the Securities Exchange
Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Chemtura Corporation
(Registrant)
By:
/s/ Billie S. Flaherty
Name: Billie S. Flaherty
Title: SVP, General Counsel & Secretary
Date:
October 29, 2012