<SUBMISSION>
<ACCESSION-NUMBER>0000950123-11-056144
<TYPE>S-1
<PUBLIC-DOCUMENT-COUNT>3
<FILING-DATE>20110603
<DATE-OF-FILING-DATE-CHANGE>20110602
<FILER>
<COMPANY-DATA>
<CONFORMED-NAME>CLEAN DIESEL TECHNOLOGIES INC
<CIK>0000949428
<ASSIGNED-SIC>3564
<IRS-NUMBER>061393453
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>S-1
<ACT>33
<FILE-NUMBER>333-174680
<FILM-NUMBER>11889646
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>4567 TELEPHONE ROAD
<STREET2>SUITE 206
<CITY>VENTURA
<STATE>CA
<ZIP>93003
<PHONE>805 639 9458
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>4567 TELEPHONE ROAD
<STREET2>SUITE 206
<CITY>VENTURA
<STATE>CA
<ZIP>93003
</MAIL-ADDRESS>
</FILER>
<DOCUMENT>
<TYPE>S-1
<SEQUENCE>1
<FILENAME>v59644sv1.htm
<DESCRIPTION>FORM S-1
<TEXT>
<HTML>
<HEAD>
<TITLE>sv1</TITLE>
</HEAD>
<BODY bgcolor="#FFFFFF">
<!-- PAGEBREAK -->
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->
</DIV><!-- END PAGE WIDTH -->
<DIV style="width: 94%; margin-left: 3%"><!-- BEGIN PAGE WIDTH -->

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B>As filed with the Securities and Exchange Commission on
    June&#160;2, 2011</B>
</DIV>

<DIV style="margin-top: 1pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="right" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

</DIV>

<DIV align="right" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B>Registration
    <FONT style="white-space: nowrap">No.&#160;333-&#160;&#160;&#160;&#160;&#160;&#160;</FONT></B>
</DIV>

<CENTER><DIV style="font-size: 1pt; width: 100%; border-bottom: 2pt solid #000000"></DIV></CENTER>

<CENTER><DIV style="font-size: 1pt; width: 100%; border-bottom: 1pt solid #000000"></DIV></CENTER>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B><FONT style="font-size: 14pt">UNITED STATES SECURITIES AND
    EXCHANGE COMMISSION<BR>
    </FONT><FONT style="font-size: 12pt">Washington,&#160;D.C.
    20549</FONT></B>
</DIV>

<DIV style="margin-top: 3pt; font-size: 1pt">&nbsp;</DIV>

<DIV style="margin-top: 1pt; font-size: 1pt">&nbsp;</DIV>

<CENTER><DIV style="font-size: 1pt; width: 15%; border-bottom: 1pt solid #000000"></DIV></CENTER>

<DIV style="margin-top: 3pt; font-size: 1pt">&nbsp;</DIV>

<DIV style="margin-top: 1pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B><FONT style="font-size: 18pt"><FONT style="white-space: nowrap">Form&#160;S-1</FONT></FONT></B>
</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B><FONT style="font-size: 12pt">REGISTRATION
    STATEMENT</FONT></B>
</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B><FONT style="font-size: 12pt">UNDER</FONT></B>
</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B><FONT style="font-size: 12pt">THE SECURITIES ACT OF
    1933</FONT></B>
</DIV>

<DIV style="margin-top: 3pt; font-size: 1pt">&nbsp;</DIV>

<DIV style="margin-top: 1pt; font-size: 1pt">&nbsp;</DIV>

<CENTER><DIV style="font-size: 1pt; width: 15%; border-bottom: 1pt solid #000000"></DIV></CENTER>

<DIV style="margin-top: 3pt; font-size: 1pt">&nbsp;</DIV>

<DIV style="margin-top: 1pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B><FONT style="font-size: 24pt">Clean Diesel Technologies,
    Inc.</FONT></B>
</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <I><FONT style="font-size: 8pt">(Exact name of registrant as
    specified in its charter)</FONT></I>
</DIV>

<DIV style="margin-top: 1pt; font-size: 1pt">&nbsp;</DIV>

<TABLE border="0" width="100%" align="center" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
<!-- Table Width Row BEGIN -->
<TR style="font-size: 1pt" valign="bottom">
    <TD width="34%">&nbsp;</TD>	<!-- colindex=01 type=maindata -->
    <TD width="1%">&nbsp;</TD>	<!-- colindex=02 type=gutter -->
    <TD width="32%">&nbsp;</TD>	<!-- colindex=02 type=maindata -->
    <TD width="1%">&nbsp;</TD>	<!-- colindex=03 type=gutter -->
    <TD width="32%">&nbsp;</TD>	<!-- colindex=03 type=maindata -->
</TR>
<!-- Table Width Row END -->
<!-- TableOutputHead -->
<!-- TableOutputBody -->
<TR valign="bottom">
<TD nowrap align="center" valign="top">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    <B>Delaware</B>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="center" valign="top">
    <B>2810</B>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="center" valign="top">
    <B>06-1393453</B>
</TD>
</TR>
<TR valign="bottom">
<TD align="center" valign="top">
    <I><FONT style="font-size: 8pt">(State or other jurisdiction
    of<BR>
    incorporation or organization)</FONT></I>
</TD>
<TD>
&nbsp;
</TD>
<TD align="center" valign="top">
    <I><FONT style="font-size: 8pt">(Primary Standard Industrial<BR>
    Classification Code Number)</FONT></I>
</TD>
<TD>
&nbsp;
</TD>
<TD align="center" valign="top">
    <I><FONT style="font-size: 8pt">(I.R.S. Employer<BR>
    Identification No.)</FONT></I><FONT style="font-size: 8pt">
    </FONT>
</TD>
</TR>
</TABLE>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B>4567 Telephone Road, Suite&#160;206</B>
</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B>Ventura, California 93003</B>
</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B><FONT style="white-space: nowrap">(805)&#160;639-9458</FONT></B>
</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <I><FONT style="font-size: 8pt">(Address, including zip code,
    and telephone number, including area code, of registrant&#146;s
    principal executive offices)</FONT></I>
</DIV>

<DIV style="margin-top: 3pt; font-size: 1pt">&nbsp;</DIV>

<CENTER><DIV style="font-size: 1pt; width: 15%; border-bottom: 1pt solid #000000"></DIV></CENTER>

<DIV style="margin-top: 3pt; font-size: 1pt">&nbsp;</DIV>

<DIV style="margin-top: 3pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B>Nikhil A. Mehta</B>
</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B>Chief Financial Officer and Treasurer</B>
</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B>4567 Telephone Road, Suite&#160;206</B>
</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B>Ventura, California 93003</B>
</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B><FONT style="white-space: nowrap">(805)&#160;639-9458</FONT></B>
</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <I><FONT style="font-size: 8pt">(Name, address, including zip
    code, and telephone number, including area code, of agent for
    service)</FONT></I>
</DIV>

<DIV style="margin-top: 3pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B><I>Copies to:</I></B>
</DIV>

<DIV style="margin-top: 3pt; font-size: 1pt">&nbsp;</DIV>

<TABLE border="0" width="100%" align="center" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
<!-- Table Width Row BEGIN -->
<TR style="font-size: 1pt" valign="bottom">
    <TD width="50%">&nbsp;</TD>	<!-- colindex=01 type=maindata -->
    <TD width="1%">&nbsp;</TD>	<!-- colindex=02 type=gutter -->
    <TD width="49%">&nbsp;</TD>	<!-- colindex=02 type=maindata -->
</TR>
<!-- Table Width Row END -->
<!-- TableOutputHead -->
<!-- TableOutputBody -->
<TR valign="bottom">
<TD align="center" valign="top">
    <B>Robert M. Smith<BR>
    Marianne C. Sarrazin<BR>
    Reed Smith LLP<BR>
    101 Second Street, Suite&#160;1800<BR>
    San&#160;Francisco, California 94105<BR>
    <FONT style="white-space: nowrap">(415)&#160;659-5955</FONT></B>
</TD>
<TD>
&nbsp;
</TD>
<TD align="center" valign="top">
    <B>R. Scott Shean<BR>
    B. Shayne Kennedy<BR>
    Latham &#038; Watkins LLP<BR>
    650 Town Center Drive,
    20<SUP style="font-size: 85%; vertical-align: top">th</SUP></B>

    <B>Floor<BR>
    Costa Mesa, California 92626-1925<BR>
    (714) 540-1235</B>
</TD>
</TR>
</TABLE>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 3%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B>Approximate date of commencement of proposed sale to the
    public:</B>&#160;&#160;As soon as practicable after the
    effective date of this Registration Statement.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 3%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    If any of the securities being registered on this Form are to be
    offered on a delayed or continuous basis pursuant to
    Rule&#160;415 under the Securities Act of 1933 check the
    following
    box.&#160;&#160;<FONT style="font-family: Wingdings; font-variant: normal">&#111;
    </FONT>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 3%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    If this Form is filed to register additional securities for an
    offering pursuant to Rule&#160;462(b) under the Securities Act,
    please check the following box and list the Securities Act
    registration statement number of the earlier effective
    registration statement for the same
    offering.&#160;&#160;<FONT style="font-family: Wingdings; font-variant: normal">&#111;
    </FONT>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 3%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    If this Form is a post-effective amendment filed pursuant to
    Rule&#160;462(c) under the Securities Act, check the following
    box and list the Securities Act registration statement number of
    the earlier effective registration statement for the same
    offering.&#160;&#160;<FONT style="font-family: Wingdings; font-variant: normal">&#111;
    </FONT>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 3%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    If this Form is a post-effective amendment filed pursuant to
    Rule&#160;462(d) under the Securities Act, check the following
    box and list the Securities Act registration statement number of
    the earlier effective registration statement for the same
    offering.&#160;&#160;<FONT style="font-family: Wingdings; font-variant: normal">&#111;
    </FONT>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 3%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Indicate by check mark whether the registrant is a large
    accelerated filer, an accelerated filer, a non-accelerated
    filer, or a smaller reporting company. See the definitions of
    &#147;large accelerated filer,&#148; &#147;accelerated
    filer&#148; and &#147;smaller reporting company&#148; in Rule
    <FONT style="white-space: nowrap">12b-2</FONT> of the
    Exchange Act. (Check one):
</DIV>

<DIV style="margin-top: 5pt; font-size: 1pt">&nbsp;</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

<TR>
    <TD width="25%"></TD>
    <TD width="25%"></TD>
    <TD width="25%"></TD>
    <TD width="25%"></TD>
</TR>

<TR valign="top">
    <TD nowrap align="left">    <FONT style="font-family: 'Times New Roman', Times">Large
    accelerated
    filer&#160;<FONT style="font-family: Wingdings; font-variant: normal">&#111;</FONT>
    </FONT></TD>
    <TD nowrap align="center">    <FONT style="font-family: 'Times New Roman', Times"> Accelerated
    filer&#160;<FONT style="font-family: Wingdings; font-variant: normal">&#111;</FONT>
    </FONT></TD>
    <TD nowrap align="center">    <FONT style="font-family: 'Times New Roman', Times">
    <FONT style="white-space: nowrap">Non-accelerated</FONT>
    filer&#160;<FONT style="font-family: Wingdings; font-variant: normal">&#111;</FONT>
    </FONT></TD>
    <TD nowrap align="right">    <FONT style="font-family: 'Times New Roman', Times"> Smaller
    reporting
    company&#160;<FONT style="font-family: Wingdings; font-variant: normal">&#254;</FONT>
    </FONT></TD>
</TR>

</TABLE>



<DIV align="center" style="margin-left: 22%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    (Do not check if a smaller reporting company)
</DIV>

<DIV style="margin-top: 2pt; font-size: 1pt">&nbsp;</DIV>



<DIV align="center" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">CALCULATION
    OF REGISTRATION FEE</FONT></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE border="0" width="100%" align="center" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
<!-- Table Width Row BEGIN -->
<TR style="font-size: 1pt" valign="bottom">
    <TD width="77%">&nbsp;</TD>	<!-- colindex=01 type=maindata -->
    <TD width="1%">&nbsp;</TD>	<!-- colindex=02 type=gutterleft -->
    <TD width="1%">&nbsp;</TD>	<!-- colindex=02 type=gutterright -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=02 type=lead -->
    <TD width="10%" align="right">&nbsp;</TD>	<!-- colindex=02 type=body -->
    <TD width="1%" align="left">&nbsp;</TD>	<!-- colindex=02 type=hang1 -->
    <TD width="1%">&nbsp;</TD>	<!-- colindex=03 type=gutterleft -->
    <TD width="1%">&nbsp;</TD>	<!-- colindex=03 type=gutterright -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=03 type=lead -->
    <TD width="5%" align="right">&nbsp;</TD>	<!-- colindex=03 type=body -->
    <TD width="1%" align="left">&nbsp;</TD>	<!-- colindex=03 type=hang1 -->
</TR>
<!-- Table Width Row END -->
<!-- TableOutputHead -->
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD nowrap align="center" valign="bottom" style="border-top: 3px double #000000">
&nbsp;
</TD>
<TD style="border-right: 1px solid #000000; padding-right: 2pt; border-top: 3px double #000000">
&nbsp;
</TD>
<TD style="border-top: 3px double #000000">
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom" style="border-top: 3px double #000000">
    <B>Proposed Maximum<BR>
    </B>
</TD>
<TD style="border-top: 3px double #000000">
&nbsp;
</TD>
<TD style="border-right: 1px solid #000000; padding-right: 2pt; border-top: 3px double #000000">
&nbsp;
</TD>
<TD style="border-top: 3px double #000000">
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom" style="border-top: 3px double #000000">
    <B>Amount of<BR>
    </B>
</TD>
<TD style="border-top: 3px double #000000">
&nbsp;
</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD nowrap align="center" valign="bottom">
    <B>Title of Each Class of<BR>
    </B>
</TD>
<TD style="border-right: 1px solid #000000; padding-right: 2pt">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom">
    <B>Aggregate Offering<BR>
    </B>
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-right: 1px solid #000000; padding-right: 2pt">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom">
    <B>Registration<BR>
    </B>
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD nowrap align="center" valign="bottom">
    <B>Securities to be Registered</B>
</TD>
<TD style="border-right: 1px solid #000000; padding-right: 2pt">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom">
    <B>Price(1)(2)</B>
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-right: 1px solid #000000; padding-right: 2pt">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom">
    <B>Fee</B>
</TD>
<TD>
&nbsp;
</TD>
</TR>
<!-- TableOutputBody -->
<TR valign="bottom">
<TD align="left" valign="top" style="border-top: 1px solid #000000">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Common stock, par value $0.01 per share
</DIV>
</TD>
<TD style="border-right: 1px solid #000000; padding-right: 2pt; border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom" style="border-top: 1px solid #000000">
    $
</TD>
<TD nowrap align="right" valign="bottom" style="border-top: 1px solid #000000">
    <B>13,800,000</B>
</TD>
<TD nowrap align="left" valign="bottom" style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-right: 1px solid #000000; padding-right: 2pt; border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom" style="border-top: 1px solid #000000">
    $
</TD>
<TD nowrap align="right" valign="bottom" style="border-top: 1px solid #000000">
    <B>1,602.18</B>
</TD>
<TD nowrap align="left" valign="bottom" style="border-top: 1px solid #000000">
&nbsp;
</TD>
</TR>
<TR style="font-size: 1pt">
<TD nowrap align="left" valign="bottom" style="border-top: 3px double #000000">
&nbsp;
</TD>
<TD style="border-top: 3px double #000000">
&nbsp;
</TD>
<TD style="border-top: 3px double #000000">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom" style="border-top: 3px double #000000">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom" style="border-top: 3px double #000000">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom" style="border-top: 3px double #000000">
&nbsp;
</TD>
<TD style="border-top: 3px double #000000">
&nbsp;
</TD>
<TD style="border-top: 3px double #000000">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom" style="border-top: 3px double #000000">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom" style="border-top: 3px double #000000">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom" style="border-top: 3px double #000000">
&nbsp;
</TD>
</TR>
</TABLE>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

</DIV>

<DIV style="margin-top: 3pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    (1)&#160;Estimated solely for the purpose of calculating the
    amount of the registration fee pursuant to Rule&#160;457(o) of
    the Securities Act.
</DIV>



<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    (2)&#160;Includes shares that the underwriter has the option to
    purchase to cover over-allotments, if any.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 3%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B>The Registrant hereby amends this Registration Statement on
    such date or dates as may be necessary to delay its effective
    date until the Registrant shall file a further amendment which
    specifically states that this Registration Statement shall
    thereafter become effective in accordance with Section&#160;8(a)
    of the Securities Act of 1933 or until the Registration
    Statement shall become effective on such date as the Commission,
    acting pursuant to Section&#160;8(a), may determine.</B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<CENTER><DIV style="font-size: 1pt; width: 100%; border-bottom: 1pt solid #000000"></DIV></CENTER>

<CENTER><DIV style="font-size: 1pt; width: 100%; border-bottom: 2pt solid #000000"></DIV></CENTER>
<!-- XBRL Pagebreak Begin -->

<P align="left" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 94%; margin-left: 3%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<TABLE style="color: #FF0000" width="100%" border="1" cellpadding="5"><TR><TD style=text-align:justify>
<FONT style="font-size: 8pt; font-family: Arial, Helvetica; color: #E8112D">The
information in this prospectus is not complete and may be
changed. We may not sell these securities until the registration
statement filed with the Securities and Exchange Commission is
effective. This prospectus is not an offer to sell these
securities and we are not soliciting an offer to buy these
securities in any state where the offer or sale is not
permitted.<BR>
</FONT>
</TD></TR></TABLE>

<DIV style="margin-top: 1pt; font-size: 1pt">&nbsp;</DIV>
</DIV><!-- END PAGE WIDTH -->
<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B><FONT style="color: #E8112D">SUBJECT TO COMPLETION, DATED
    JUNE 2, 2011</FONT></B>
</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B>PRELIMINARY PROSPECTUS</B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <IMG src="v59644v5964401.gif" alt="(CLEAN DIESEL LOGO)">
</DIV>

<DIV style="margin-top: 9pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B><FONT style="font-size: 20pt">CLEAN DIESEL TECHNOLOGIES,
    INC.</FONT></B>
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B><FONT style="font-size: 14pt">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Shares
    of Common Stock</FONT></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    We are
    offering&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;shares
    of common stock and the selling stockholders named herein are
    selling an
    additional&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;shares
    of common stock. We will not receive any proceeds from the sale
    of shares by the selling stockholders.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Our common stock is listed on the NASDAQ Capital Market under
    the symbol &#147;CDTI.&#148; On June&#160;1, 2011, the last
    reported sales price for our common stock as quoted on the
    NASDAQ Capital Market was $7.18 per share.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 5%; font-size: 12pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B>Investing in our common stock involves a high degree of risk.
    You should review carefully the risks and uncertainties
    described under the heading &#147;Risk Factors&#148; beginning
    on page&#160;11 of this prospectus and under similar headings in
    the other documents that are incorporated by reference into this
    prospectus.</B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE border="0" width="100%" align="center" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
<!-- Table Width Row BEGIN -->
<TR style="font-size: 1pt" valign="bottom">
    <TD width="83%">&nbsp;</TD>	<!-- colindex=01 type=maindata -->
    <TD width="2%">&nbsp;</TD>	<!-- colindex=02 type=gutter -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=02 type=lead -->
    <TD width="5%" align="right">&nbsp;</TD>	<!-- colindex=02 type=body -->
    <TD width="1%" align="left">&nbsp;</TD>	<!-- colindex=02 type=hang1 -->
    <TD width="3%">&nbsp;</TD>	<!-- colindex=03 type=gutter -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=03 type=lead -->
    <TD width="3%" align="right">&nbsp;</TD>	<!-- colindex=03 type=body -->
    <TD width="1%" align="left">&nbsp;</TD>	<!-- colindex=03 type=hang1 -->
</TR>
<!-- Table Width Row END -->
<!-- TableOutputHead -->
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD nowrap align="center" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>Per Share</B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>Total</B>
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR style="line-height: 3pt; font-size: 1pt">
<TD>&nbsp;
</TD>
</TR>
<!-- TableOutputBody -->
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Public offering price
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    &#160;&#160;&#160;&#160;&#160;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    &#160;&#160;&#160;&#160;&#160;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Underwriting discounts and commissions(1)
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Proceeds, before expenses, to us
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Proceeds, before expenses, to the selling stockholders
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">

</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
</TABLE>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV style="font-size: 1pt; margin-left: 0%; width: 13%;  align: left; border-bottom: 1pt solid #000000"></DIV>

<DIV style="margin-top: 3pt; font-size: 1pt">&nbsp;</DIV>



<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

<TR>
    <TD width="2%"></TD>
    <TD width="1%"></TD>
    <TD width="97%"></TD>
</TR>

<TR>
    <TD align="right" valign="top">
    (1) </TD>
    <TD></TD>
    <TD valign="bottom">
    See the heading entitled &#147;Underwriting&#148; on
    page&#160;32 of this prospectus for disclosure regarding
    compensation to the Underwriter payable by us and the selling
    stockholders.</TD>
</TR>

</TABLE>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    We have granted to the underwriter an option to purchase up
    to&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;additional
    shares of our common stock to cover over-allotments, if any,
    within 30&#160;days of the date of this prospectus.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B>Neither the Securities and Exchange Commission nor any state
    securities commission has approved or disapproved of these
    securities or passed upon the adequacy or accuracy of this
    prospectus. Any representation to the contrary is a criminal
    offense.</B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    The underwriter expects to deliver the shares of our common
    stock to purchasers on or
    about&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;,
    2011.
</DIV>

<DIV style="margin-top: 3pt; font-size: 1pt">&nbsp;</DIV>

<DIV style="margin-top: 3pt; font-size: 1pt">&nbsp;</DIV>

<CENTER><DIV style="font-size: 1pt; width: 18%; border-bottom: 1pt solid #000000"></DIV></CENTER>

<DIV style="margin-top: 4pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B><FONT style="font-size: 18pt">Roth Capital Partners</FONT></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<CENTER><DIV style="font-size: 1pt; width: 18%; border-bottom: 1pt solid #000000"></DIV></CENTER>

<DIV style="margin-top: 3pt; font-size: 1pt">&nbsp;</DIV>

<DIV style="margin-top: 3pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    The date of this prospectus
    is&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;,
    2011.
</DIV>
<!-- XBRL Pagebreak Begin -->

<P align="left" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

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

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<DIV style="margin-top: 18pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">TABLE OF
    CONTENTS</FONT></B>
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>
<DIV align="left">
<!-- TOC -->
</DIV>

<DIV align="left">
<A name="V59644tocpage"></A>
</DIV>

<TABLE border="0" width="100%" align="center" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
<!-- Table Width Row BEGIN -->
<TR style="font-size: 1pt" valign="bottom">
    <TD width="97%">&nbsp;</TD>	<!-- colindex=01 type=maindata -->
    <TD width="2%">&nbsp;</TD>	<!-- colindex=02 type=gutter -->
    <TD width="1%">&nbsp;</TD>	<!-- colindex=02 type=quadleft -->
    <TD width="1%">&nbsp;</TD>	<!-- colindex=02 type=maindata -->
    <TD width="1%">&nbsp;</TD>	<!-- colindex=02 type=quadright -->
</TR>
<!-- Table Width Row END -->
<!-- TableOutputHead -->
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD nowrap align="center" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="3" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>Page</B>
</TD>
</TR>
<TR style="line-height: 3pt; font-size: 1pt">
<TD>&nbsp;
</TD>
</TR>
<!-- TableOutputBody -->
<TR valign="bottom">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    <A HREF='#V59644101'>SUMMARY</A>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD>&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    1
</TD>
<TD>&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    <A HREF='#V59644102'>RISK FACTORS</A>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD>&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    11
</TD>
<TD>&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    <A HREF='#V59644103'>CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING
    STATEMENTS</A>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD>&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    21
</TD>
<TD>&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    <A HREF='#V59644104'>USE OF PROCEEDS</A>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD>&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    22
</TD>
<TD>&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    <A HREF='#V59644105'>DIVIDEND POLICY</A>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD>&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    22
</TD>
<TD>&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    <A HREF='#V59644106'>CAPITALIZATION</A>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD>&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    23
</TD>
<TD>&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    <A HREF='#V59644107'>DILUTION</A>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD>&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    24
</TD>
<TD>&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    <A HREF='#V59644108'>PRINCIPAL AND SELLING STOCKHOLDERS</A>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD>&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    25
</TD>
<TD>&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    <A HREF='#V59644109'>MATERIAL U.S. FEDERAL INCOME TAX CONSEQUENCES TO
    <FONT style="white-space: nowrap">NON-U.S.</FONT>
    HOLDERS</A>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD>&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    28
</TD>
<TD>&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    <A HREF='#V59644110'>UNDERWRITING</A>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD>&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    32
</TD>
<TD>&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    <A HREF='#V59644111'>MARKET PRICE AND OTHER SHAREHOLDER INFORMATION</A>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD>&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    35
</TD>
<TD>&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    <A HREF='#V59644112'>LEGAL MATTERS</A>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD>&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    36
</TD>
<TD>&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    <A HREF='#V59644113'>EXPERTS</A>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD>&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    36
</TD>
<TD>&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    <A HREF='#V59644114'>WHERE YOU CAN FIND MORE INFORMATION</A>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD>&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    36
</TD>
<TD>&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    <A HREF='#V59644115'>INCORPORATION OF CERTAIN INFORMATION BY
    REFERENCE</A>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD>&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    37
</TD>
<TD>&nbsp;
</TD>
</TR>
<TR><TD colspan="9"><FONT size="2">&nbsp;<A HREF="v59644exv23w1.htm">EX-23.1</A></FONT></TD></TR>
</TABLE>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

</DIV>

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

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    You should rely only on the information contained or
    incorporated by reference in this prospectus and in any free
    writing prospectus that we have authorized for use in connection
    with this offering. Neither we, the selling stockholders, nor
    the underwriter have authorized any other person to provide you
    with additional or different information. If anyone provides you
    with different or inconsistent information, you should not rely
    on it. Neither we, the selling stockholders, nor the underwriter
    are making an offer to sell these securities in any jurisdiction
    where an offer or sale is not permitted. Our business, financial
    condition, results of operations and prospects may have changed
    since that date.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Some of the industry and market data contained in or
    incorporated by reference in this prospectus are based on
    independent industry publications or other publicly available
    information, while other information is based on our internal
    sources. Although we believe that each source is reliable as of
    its respective date, the information contained in such sources
    has not been independently verified, and neither we nor the
    underwriter can assure you as to the accuracy or completeness of
    this information.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    As used throughout this prospectus, unless the context otherwise
    requires, &#147;CDTI&#148; means Clean Diesel Technologies, Inc.
    and its consolidated subsidiaries on a stand-alone basis prior
    to the October&#160;15, 2010 business combination with Catalytic
    Solutions, Inc. We refer to this business combination as the
    &#147;Merger.&#148; &#147;CSI&#148; means Catalytic Solutions,
    Inc. and its consolidated subsidiaries prior to the Merger. The
    terms &#147;Clean Diesel&#148; or the &#147;Company&#148; or
    &#147;we,&#148; &#147;our&#148; and &#147;us&#148; means Clean
    Diesel Technologies, Inc. and its consolidated subsidiaries,
    including CSI after the Merger, unless the context otherwise
    requires.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    All trade names used in this prospectus are either our
    registered trademarks or trademarks of their respective holders.
    Throughout this prospectus, we refer to various trademarks,
    service marks and trade names that we use in our business. Mixed
    Phase Catalyst
    (MPC<SUP style="font-size: 85%; vertical-align: text-top">&#174;</SUP>),

    ARIS<SUP style="font-size: 85%; vertical-align: text-top">&#174;</SUP>

    for selective catalytic reduction, and Platinum
    Plus<SUP style="font-size: 85%; vertical-align: text-top">&#174;</SUP>

    fuel-borne catalyst, are some of our registered trademarks. The
    graphical representation of
    Purifier<SUP style="font-size: 85%; vertical-align: top"><FONT style="font-variant: SMALL-CAPS">tm</FONT></SUP>

    is one of our trademarks. We also have a number of other
    registered trademarks, service marks and pending applications
    relating to our products. Other trademarks and service marks
    appearing in this prospectus are the property of their
    respective holders.
</DIV>
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    i
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->
<DIV style="width: 100%; height: 9in; border-top: 1px solid #000000; padding-top: 12pt; border-right: 1px solid #000000; padding-right: 12pt; border-bottom: 1px solid #000000; padding-bottom: 12pt; border-left: 1px solid #000000; padding-left: 12pt"><!-- Begin box 1 -->

<A name='V59644101'>
<DIV style="margin-top: 18pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">SUMMARY</FONT></B>
</DIV>
</A>
<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <I>This summary highlights certain information contained
    elsewhere in this prospectus or incorporated by reference
    herein. This summary does not contain all of the information
    that you should consider before investing in our common stock.
    You should read the entire prospectus carefully, including the
    risks related to our business and investing in our common stock
    discussed under &#147;Risk Factors&#148; beginning on
    page&#160;11 and the other information and documents
    incorporated by reference into this prospectus, including our
    consolidated financial statements and related notes thereto.</I>
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">Overview</FONT></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    We are a leading global manufacturer and distributor of heavy
    duty diesel and light duty vehicle emissions control systems and
    products to major automakers and retrofitters. Our business is
    driven by increasingly stringent global emission standards for
    internal combustion engines, which are major sources of a
    variety of harmful pollutants. We operate in two primary
    divisions: our Heavy Duty Diesel Systems division, which
    specializes in the design and maintenance of verified exhaust
    emission control solutions, and our Catalyst division, which
    produces catalyst formulations to reduce emissions from
    gasoline, diesel and natural gas combustion engines.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Sales of emission control systems by our Heavy Duty Diesel
    Systems division are being driven by increased regulation of
    diesel emissions, particularly in the State of California and
    Europe&#146;s Low Emission Zones, or LEZs. The
    U.S.&#160;Environmental Protection Agency, or EPA, estimates
    that more than 11&#160;million diesel engines operating today do
    not meet its new clean diesel standards. In California,
    government mandates could lead to the long-term retrofitting of
    nearly one million diesel vehicles at an estimated cost of over
    $2&#160;billion, according to the California Air Resources
    Board, or CARB. According to data received from Transport for
    London, we believe the London LEZ regulations will require the
    retrofitting of up to 20,000 heavy duty diesel vehicles through
    early 2012.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Our Catalyst division primarily serves the light duty vehicle
    market, where we sell our proprietary, low-platinum group metals
    advanced catalytic coatings, which accelerate the breakdown of
    exhaust gasses, to major automaker customers and other original
    equipment manufacturers, or OEMs, including Honda. Globally,
    this market is estimated to exceed $7&#160;billion by 2015,
    according to a report issued by Global Industry Analysts, Inc.
    We expect growth in this business division to be driven by
    increased sales to existing customers, acquisition of new
    customers, and catalyst sales internally to our Heavy Duty
    Diesel Systems division.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    We believe our end markets are continually expanding as the
    emission standards put in place by the EPA and CARB, as well as
    those being adopted overseas, require the adoption of more
    advanced technologies than currently in use. Our heavy duty
    diesel systems and catalyst products are designed specifically
    to deal with emissions of nitrogen oxide, which produces smog;
    particulate matter, or PM (commonly referred to as soot), that
    contains over 40 known cancer-causing compounds according to
    CARB; volatile organic compounds, many of which are known to
    cause adverse health effects; and carbon monoxide, which reduces
    oxygen delivery within the body.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    With over 30&#160;years experience in vehicle emissions control
    technologies, we believe we offer one of the industry&#146;s
    most comprehensive portfolios of evaluated and EPA- and
    CARB-verified systems for use in engine retrofit programs, as
    well as by regulators in several European countries. Our Heavy
    Duty Diesel Systems division products include those sold by our
    Engine Control Systems, or ECS, subsidiary and comprise diesel
    oxidation catalysts, diesel particulate filters, selective
    catalytic reduction systems and others for the retrofit and OEM
    markets. We sell these products directly as well as through our
    distributor/dealer network. This division also offers our
    Platinum
    Plus<SUP style="font-size: 85%; vertical-align: text-top">&#174;</SUP>

    range of fuel-borne catalyst solutions to global markets. Our
    Catalyst division products are based on our proprietary Mixed
    Phase Catalyst, or
    MPC<SUP style="font-size: 85%; vertical-align: text-top">&#174;</SUP>

    technology, which we have formulated for use in gasoline, diesel
    and natural gas emissions applications. We view our catalyst
    products as highly differentiated from competing products
    because they offer similar or better performance while using
    little or no platinum group metals. Our Catalyst division has
    supplied over 10&#160;million catalyst parts to light duty
    vehicle customers since 1996. We are also expanding the use of
    our catalyst products within the products of our Heavy Duty
    Diesel Systems division, which we believe will provide
    opportunity for margin improvement.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    We are headquartered in Ventura, California and have operations
    in the United States, Canada, the United&#160;Kingdom, France,
    Japan and Sweden as well as an Asian investment. Our proprietary
    Catalyst division products are manufactured
</DIV>
<!-- XBRL Paragraph Pagebreak -->
<!-- XBRL Pagebreak Begin -->
</DIV><!-- End box 1 -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    1
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<DIV style="width: 100%; height: 9in; border-top: 1px solid #000000; padding-top: 12pt; border-right: 1px solid #000000; padding-right: 12pt; border-bottom: 1px solid #000000; padding-bottom: 12pt; border-left: 1px solid #000000; padding-left: 12pt"><!-- Begin box 1 -->
<!-- XBRL Pagebreak End -->

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    at our facility in Oxnard, California, while our Heavy Duty
    Diesel Systems division products are manufactured at our
    facilities in Reno, Nevada; Thornhill, Canada; Malm&#246;,
    Sweden and South&#160;Godstone, United Kingdom.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    In the first quarter of 2011, our revenues were
    $13.8&#160;million, an 11.3% increase compared to the same
    period in 2010. Revenue in our Heavy Duty Diesel Systems
    division increased 25.3%, while revenues in our Catalyst
    division were down slightly.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">Market
    Overview</FONT></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Regulatory standards have been adopted worldwide to control the
    emissions of nitrogen oxide, particulate matter, carbon monoxide
    and carbon dioxide, from on- and off-road internal combustion
    engine exhaust. Because standards put in place by the EPA, CARB
    and other international regulators continue to become more
    restrictive over time, we view the markets for our products as
    continually expanding. The following table summarizes the
    current schedule of current and anticipated emission regulations
    that stimulate the markets for our products:
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE border="0" width="100%" align="center" cellpadding="0" cellspacing="0" style="font-size: 9pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
<!-- Table Width Row BEGIN -->
<TR style="font-size: 1pt" valign="bottom">
    <TD width="18%">&nbsp;</TD>	<!-- colindex=01 type=maindata -->
    <TD width="1%">&nbsp;</TD>	<!-- colindex=02 type=gutter -->
    <TD width="15%">&nbsp;</TD>	<!-- colindex=02 type=maindata -->
    <TD width="3%">&nbsp;</TD>	<!-- colindex=03 type=gutter -->
    <TD width="15%">&nbsp;</TD>	<!-- colindex=03 type=maindata -->
    <TD width="3%">&nbsp;</TD>	<!-- colindex=04 type=gutter -->
    <TD width="12%">&nbsp;</TD>	<!-- colindex=04 type=maindata -->
    <TD width="3%">&nbsp;</TD>	<!-- colindex=05 type=gutter -->
    <TD width="10%">&nbsp;</TD>	<!-- colindex=05 type=maindata -->
    <TD width="3%">&nbsp;</TD>	<!-- colindex=06 type=gutter -->
    <TD width="17%">&nbsp;</TD>	<!-- colindex=06 type=maindata -->
</TR>
<!-- Table Width Row END -->
<!-- TableOutputHead -->
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD nowrap align="left" valign="bottom">
<DIV style="border-bottom: 1px solid #000000; width: 1%; padding-bottom: 1px">
    <B>Market/Application</B>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="center" valign="bottom">
<DIV style="border-bottom: 1px solid #000000; width: 1%; padding-bottom: 1px">
    <B>2010</B>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="center" valign="bottom">
<DIV style="border-bottom: 1px solid #000000; width: 1%; padding-bottom: 1px">
    <B>2011</B>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="center" valign="bottom">
<DIV style="border-bottom: 1px solid #000000; width: 1%; padding-bottom: 1px">
    <B>2012</B>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="center" valign="bottom">
<DIV style="border-bottom: 1px solid #000000; width: 1%; padding-bottom: 1px">
    <B>2013</B>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="center" valign="bottom">
<DIV style="border-bottom: 1px solid #000000; width: 1%; padding-bottom: 1px">
    <B>2014</B>
</DIV>
</TD>
</TR>
<TR style="line-height: 3pt; font-size: 1pt">
<TD>&nbsp;
</TD>
</TR>
<!-- TableOutputBody -->
<TR valign="bottom">
<TD nowrap align="left" valign="top">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    <B>U.S. on-highway</B>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="top">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="top">
    TRB(1)
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="top">
    TRB(1)
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    TRB(1), CA LEV III
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="left" valign="top">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    <B>U.S. off-highway</B>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    Tier 4
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="top">
    Tier 4
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="top">
    Tier 4
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="top">
    Tier 4
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="top">
    Tier 4
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="left" valign="top">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    <B>Europe off-highway</B>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="top">
    Stage IIIA/IIIB
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="top">
    Stage IIIA/IIIB
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="top">
    Stage IIIB
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="top">
    Stage&#160;IV
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="left" valign="top">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    <B>Europe on-highway</B>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    Euro V
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="top">
    Euro V
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="top">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="top">
    Euro V/VI
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="top">
    Euro VI
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="left" valign="top">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    <B>Brazil on-highway</B>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="bottom">
    Proconve P5(2)<BR>
    (Euro III)
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Proconve P5(2)<BR>
    (Euro III)
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Proconve P7<BR>
    (Euro V)
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="top">
    Proconve L6
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="top">
    Proconve L6
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="left" valign="top">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    <B>China on-highway</B>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="top">
    Euro IV
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="top">
    Euro IV/V<BR>
    (proposed)
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="top">
    Euro&#160;IV
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="top">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="top">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    <B>India on-highway (major&#160;cities)</B>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="bottom">
    Euro III/IV(3)
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="top">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="top">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="top">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="top">
&nbsp;
</TD>
</TR>
</TABLE>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV style="font-size: 1pt; margin-left: 0%; width: 13%;  align: left; border-bottom: 1pt solid #000000"></DIV>

<DIV style="margin-top: 3pt; font-size: 1pt">&nbsp;</DIV>



<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Sources: www.dieselnet.com/standards;
    <FONT style="white-space: nowrap">http://www.arb.ca.gov/msprog/onrdiesel/documents/FSRegSum.pdf</FONT>
</DIV>

<DIV style="margin-top: 3pt; font-size: 1pt">&nbsp;</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

<TR>
    <TD width="2%"></TD>
    <TD width="1%"></TD>
    <TD width="97%"></TD>
</TR>

<TR>
    <TD align="right" valign="top">
    (1) </TD>
    <TD></TD>
    <TD valign="bottom">
    CARB Truck and Bus Regulation</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="right" valign="top">
    (2) </TD>
    <TD></TD>
    <TD valign="bottom">
    Proconve P6 standards were not implemented; P5 standards remain
    in effect through 2011</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="right" valign="top">
    (3) </TD>
    <TD></TD>
    <TD valign="bottom">
    Euro&#160;IV standards are implemented in National Capital
    Region and 11 noncompliant cities</TD>
</TR>

</TABLE>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    According to a 2005 EPA study, on-road motor vehicles (cars and
    trucks) were the largest emitters of nitrogen oxide in the
    United States, with the second largest contributor being
    non-road equipment (mostly gasoline and diesel engines). The
    study also lists on-road vehicles as the second largest source
    of volatile organic compounds, at 26%, with 19% coming from
    off-road equipment. According to the same study, on-road
    vehicles were responsible for 60% of carbon monoxide emissions.
    Nationwide, three-quarters of carbon monoxide emissions come
    from on-road motor vehicles and non-road engines, such as boats
    and construction equipment. The market for catalyst materials to
    support emission control is estimated to exceed $7&#160;billion
    by 2015, while we believe the heavy duty diesel retrofit market
    is expected to grow to several hundred million.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">Light
    duty vehicle regulations</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    In 1970, the U.S.&#160;Congress passed the Clean Air Act, which
    required a 90% reduction in emissions from new automobiles by
    1975, and resulted in the introduction of the first generation
    catalytic converter. In 1985, EPA mandated stringent emission
    standards for diesel-fueled trucks and busses to begin in 1991
    and 1994. Since that time, emissions regulations have continued
    to progress toward increasingly stringent control measures in
    geographic regions that still fail to attain the National
    Ambient Air Quality Standards. These regions are known as
    non-attainment areas. Additionally, CARB has put in place even
    tougher emission standards, and is often seen as a leader by
    other U.S.&#160;states when adopting their own emissions control
    regulations. Many European countries have been even more
    aggressive in implementing emissions controls. Although control
    measures have reduced pollutant emissions per vehicle over the
    past 20&#160;years, the number of cars and trucks on the road
    and the miles they are driven have doubled to approximately two
    trillion miles per year in the United States.
</DIV>
<!-- XBRL Pagebreak Begin -->
</DIV><!-- End box 1 -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    2
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<DIV style="width: 100%; height: 9in; border-top: 1px solid #000000; padding-top: 12pt; border-right: 1px solid #000000; padding-right: 12pt; border-bottom: 1px solid #000000; padding-bottom: 12pt; border-left: 1px solid #000000; padding-left: 12pt"><!-- Begin box 1 -->
<!-- XBRL Pagebreak End -->

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    As emissions standards have progressed, light duty vehicle
    manufacturers have moved to increasingly more advanced emission
    control technologies. Industry standards call for three-way
    catalytic converters that allow for simultaneous conversion of
    the three criteria pollutants: hydrocarbons, carbon monoxide and
    nitrogen oxide. In late 1998, to address light duty vehicle
    emissions, CARB adopted the Low Emission Vehicle II, or LEV II,
    program, which was followed by the EPA&#146;s Tier&#160;2
    program. Europe implemented similar regulations under
    Euro&#160;III (effective 2000), Euro&#160;IV (effective 2005),
    and Euro V (effective 2009). We currently supply our catalyst
    products, featuring our proprietary
    MPC<SUP style="font-size: 85%; vertical-align: text-top">&#174;</SUP>

    technology to OEMs in both the light duty vehicle category
    (including Honda and Renault), and the heavy duty diesel
    category (including Cummins and Navistar).
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">Diesel
    engine regulations</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    The EPA has identified reducing emissions from diesel engines as
    one of the most important air quality challenges facing the
    United States today. According to the American Lung Association,
    for example, over 90% of California residents live in areas with
    serious air quality problems, largely due to the transportation
    sector. Additionally, analysis by the American Lung Association
    shows that vehicles meeting current tailpipe standards will
    cause $14.5&#160;billion in public health and societal costs
    annually in the United States. In Europe, the World Health
    Organization estimates that particulate matter claims an average
    of 8.6&#160;months from the life of every person and that
    &#128;58-161&#160;billion could be saved if deaths from
    particulate matter pollution were reduced, noting that diesel
    combustion contributes
    <FONT style="vertical-align: text-top; font-size: 70%;">1</FONT>/<FONT style="font-size: 70%;">3</FONT>
    of total emissions of particulate matter less than 2.5
    micrometers in diameter, or
    PM<SUB style="font-size: 85%; vertical-align: text-bottom">2.5</SUB>.
    To address these issues, policies have been implemented in major
    markets across the globe that have significantly reduced diesel
    emissions relative to prior regulations. Increased regulations
    are expected to further reduce emissions levels.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <I><FONT style="font-family: 'Times New Roman', Times">Regulatory
    programs driving the market&#160;&#151; United States</FONT></I>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    The EPA has established the National Clean Diesel Campaign in
    order to promote diesel emission reduction strategies and
    oversee regulatory programs that address new diesel engines as
    well as other innovative programs to address the millions of
    diesel engines already in use. The EPA estimates that more than
    20&#160;million diesel engines operating in the United States
    today fail to meet the new clean diesel standards, yet the
    engines can operate for 20 to 30&#160;years. Retrofitting of
    this fleet is estimated by the EPA to cost approximately
    $7&#160;billion.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    In the United States, heavy duty diesel retrofits have been
    driven primarily by subsidy programs supported under the Diesel
    Emissions Reduction Act, or DERA, the American Recovery and
    Reconstruction Act, or ARRA, Proposition 1B in California, the
    U.S.&#160;Department of Transportation&#146;s Congestion
    Mitigation and Air Quality Improvement, or CMAQ, program, as
    well as various other state and local programs. The DERA program
    gave the EPA new grant and loan authority for promoting diesel
    emission reductions and authorized appropriations to the agency
    of up to $200&#160;million per year for 2007 through 2011.
    Congress appropriated funds for the first time under this
    program in 2008 in the amount of $49.2&#160;million. In
    addition, $300&#160;million was appropriated under ARRA and
    $120&#160;million was appropriated for
    <FONT style="white-space: nowrap">2009-2010.</FONT>
    In several states, the DERA funding has been supplemented by
    local funds. DERA funding has been removed from the proposed
    2012 budget and its inclusion is still being debated in the
    U.S.&#160;Congress. California&#146;s Proposition 1B provided
    for $1&#160;billion in bond funds for a variety of emission
    reduction priorities, including heavy duty diesel retrofits. The
    purpose of the CMAQ program is to fund transportation projects
    or programs that will contribute to the attainment or
    maintenance of the national ambient air quality standards, or
    NAAQS, for ozone, carbon monoxide and particulate matter. Under
    this program, federal funding for emission reduction has been
    provided to states at an average of approximately
    $1.6&#160;billion to $1.8&#160;billion per year between 2005 and
    2009. Funding under this program continues.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Several U.S.&#160;state, county and city governments have
    ongoing retrofit programs for on- and off-road diesel engines.
    As with many environmental issues, California has been a leader
    in driving increasingly tough emissions standards for heavy duty
    diesel vehicles. Historically, most retrofitting in California
    has been done voluntarily with support from grant programs like
    those outlined above. However, California recently passed the
    Truck and Bus Regulation, which mandates that all 1996 through
    2006 diesel trucks in Class&#160;7 (gross vehicle weight of
    <FONT style="white-space: nowrap">26,001-33,000</FONT>
    pounds) and Class&#160;8 (gross vehicle weight greater than
    33,000 pounds) be retrofitted with diesel particulate filters,
    if not so equipped, to meet state emission standards between
    2012 and 2016, with 90% required by 2014. We estimate that this
    rule will require well over 100,000 heavy duty diesel trucks to
    be replaced or
</DIV>
<!-- XBRL Paragraph Pagebreak -->
<!-- XBRL Pagebreak Begin -->
</DIV><!-- End box 1 -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    3
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<DIV style="width: 100%; height: 9in; border-top: 1px solid #000000; padding-top: 12pt; border-right: 1px solid #000000; padding-right: 12pt; border-bottom: 1px solid #000000; padding-bottom: 12pt; border-left: 1px solid #000000; padding-left: 12pt"><!-- Begin box 1 -->
<!-- XBRL Pagebreak End -->

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    retrofitted. To help accelerate the program, in April 2011, CARB
    announced an early action compliance credit for trucking fleets.
    This credit allows truck owners that install a particulate
    filter by July&#160;1, 2011, or that made a commitment to
    purchase a particulate filter by May&#160;1, 2011, to delay
    compliance for a second truck in the fleet until January&#160;1,
    2017. We have already begun to see increased activity in our
    Heavy Duty Diesel Systems division as a result of this program.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <I><FONT style="font-family: 'Times New Roman', Times">Low
    Emission Zones driving the market&#160;&#151; Europe and
    Asia</FONT></I>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    In Europe, air quality standards have been set within the
    European Union. One method being used to address increased air
    quality standards is the establishment of LEZs, more than 160 of
    which are in operation in 11 countries with others being planned
    in Europe and Asia. LEZs are areas or roads where vehicles are
    banned, or charged, if engine emissions exceed a set level. One
    of the largest and most important LEZs is in London, where
    approximately 8,000 vehicle emission systems were retrofitted in
    2008, of which we believe our systems were used to retrofit
    approximately 14%. Due to stricter requirements that go into
    effect January&#160;3, 2012, we believe the London LEZ
    regulations will require an estimated 20,000 heavy duty diesel
    vehicles to be retrofitted by early 2012. With the integration
    of our wholly-owned subsidiary Catalytic Solutions, Inc., or
    CSI, and our legacy operations, we believe we are
    well-positioned to capture a larger percentage of this market in
    the near-term. We anticipate targeting other larger LEZs in the
    future, including those in Italy and Hong Kong.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    We view the U.S.&#160;and European legislation, requiring
    significant reduction in particulate matter and nitrogen oxide
    emissions from on- and off-road diesel vehicles, as providing an
    opportunity for growth of both our heavy duty diesel retrofit
    systems and catalyst products. Catalysts using traditional
    technology generally require high platinum group metal loadings
    to comply with these standards, and diesel engine manufacturers
    are very concerned about the high price of these units. We
    believe our low-platinum group metals catalyst products are able
    to effectively address this concern. Additionally, we believe
    that fleet owners and operators complying with existing on-road
    legislation and regulations will continue to seek out more
    cost-effective suppliers for existing retrofit technology
    applications.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">Competitive
    Strengths</FONT></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Through persistent technology development, we maintain a broad
    portfolio of emission control products ranging from catalysts to
    complete retrofit or OEM systems. We believe that our
    technologies and products represent a fundamentally different
    solution, and the following competitive strengths position us as
    a leading global provider of emission control products and
    systems:
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0">

<TR>
    <TD width="4%"></TD>
    <TD width="2%"></TD>
    <TD width="94%"></TD>
</TR>

<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    <I>Broad Portfolio of Verified Heavy Duty Diesel
    Systems</I>.&#160;&#160;We believe we offer one of the
    industry&#146;s most comprehensive portfolios of system products
    that have been evaluated and verified (approved) by the EPA and
    CARB, as well as regulators in several European countries, for
    use in engine retrofit programs. Additionally, we have a
    thorough understanding of the verification process and the
    demonstrated ability to obtain broad verifications of products
    for use in the retrofit market.
</TD>
</TR>

</TABLE>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 6%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Current techniques for retrofitting diesel engines to meet
    emissions standards require the use of several methods,
    including:
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0">

<TR>
    <TD width="6%"></TD>
    <TD width="2%"></TD>
    <TD width="92%"></TD>
</TR>

<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    o&#160;
</TD>
    <TD align="left">
    <I>Diesel Oxidation Catalyst
    (&#147;DOC&#148;)</I>:&#160;&#160;Used to break down pollutants
    in the exhaust stream, turning them into less harmful compounds.
    When combined with our closed crankcase ventilation system, our
    AZ
    Purifier<SUP style="font-size: 85%; vertical-align: top">TM</SUP>

    and
    Purimuffler<SUP style="font-size: 85%; vertical-align: text-top">&#174;</SUP>

    DOCs can reduce particulate matter by up to 40%. Our line of DOC
    products also include DZ and EX
    Purifier<SUP style="font-size: 85%; vertical-align: top"><FONT style="font-variant: SMALL-CAPS">tm</FONT></SUP>.

</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    o&#160;
</TD>
    <TD align="left">
    <I>Diesel Particulate Filter</I>:&#160;&#160;Used to remove
    particulate matter from diesel engine exhaust. Our systems can
    reduce particulate matter by up to 90%. Our products are sold
    under the
    Purifier<SUP style="font-size: 85%; vertical-align: top"><FONT style="font-variant: SMALL-CAPS">tm</FONT></SUP>,

    Purifilter<SUP style="font-size: 85%; vertical-align: text-top">&#174;</SUP>,

    Cattrap<SUP style="font-size: 85%; vertical-align: text-top">&#174;</SUP>

    and
    Combifilter<SUP style="font-size: 85%; vertical-align: text-top">&#174;</SUP>

    brand names.
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    o&#160;
</TD>
    <TD align="left">
    <I>Selective Catalytic Reduction
    (&#147;SCR&#148;)</I>:&#160;&#160;An after-treatment process in
    which urea is injected into the exhaust stream to chemically
    react with nitrogen oxide to create diatomic nitrogen, carbon
    dioxide, and water. Our SCR systems reduce up to 90% of nitrogen
    oxide and can meet EPA 2010 and Euro&#160;6/VI standards.
</TD>
</TR>

</TABLE>
<!-- XBRL Pagebreak Begin -->
</DIV><!-- End box 1 -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    4
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<DIV style="width: 100%; height: 9in; border-top: 1px solid #000000; padding-top: 12pt; border-right: 1px solid #000000; padding-right: 12pt; border-bottom: 1px solid #000000; padding-bottom: 12pt; border-left: 1px solid #000000; padding-left: 12pt"><!-- Begin box 1 -->
<!-- XBRL Pagebreak End -->

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0">

<TR>
    <TD width="6%"></TD>
    <TD width="2%"></TD>
    <TD width="92%"></TD>
</TR>

<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    o&#160;
</TD>
    <TD align="left">
    <I>Fuel-Borne Catalyst:</I>&#160;&#160;Additive carried in the
    diesel fuel, used to reduce particulate emissions. Our patented
    Platinum
    Plus<SUP style="font-size: 85%; vertical-align: text-top">&#174;</SUP>

    fuel-borne catalyst is compatible with all diesel fuels and
    reduces particulate matter by 10% to 25%, while also improving
    the performance of diesel oxidation catalysts and diesel
    particulate filters.
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    o&#160;
</TD>
    <TD align="left">
    <I>Urea Injection</I>:&#160;&#160;Reducing agents (hydrocarbons)
    are injected into the exhaust stream for applications such as
    (i)&#160;lean nitrogen oxide traps, (ii)&#160;catalyzed diesel
    particulate filter regeneration systems, and (iii)&#160;urea
    injection for selective catalytic reduction. Our patented
    Advanced Reagent Injection System, or
    ARIS<SUP style="font-size: 85%; vertical-align: text-top">&#174;</SUP>,

    for selective catalytic reduction reduces nitrogen oxide by up
    to 90%.
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    o&#160;
</TD>
    <TD align="left">
    <I>Enhanced Gas Recirculation
    (&#147;EGR&#148;)</I>:&#160;&#160;Reduces nitrogen oxide when
    starting a cold engine and recirculates part of the exhaust gas
    stream to reduce engine-out nitrogen oxide emissions. Used in
    combination with SCR to meet the strictest nitrogen oxide
    reduction criteria. We have patented intellectual property
    holdings for the design and implementation of EGR/SCR systems
    and have licensed these patents to several industry providers.
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    o&#160;
</TD>
    <TD align="left">
    <I>Closed Crankcase Ventilation Systems</I>:&#160;&#160;Assist
    in elevating the level of exhaust emission reduction by
    eliminating crankcase emissions. Our closed crankcase
    ventilation system is a truly closed crankcase ventilation
    system that effectively eliminates 100% of crankcase emissions
    at all times.
</TD>
</TR>

</TABLE>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0">

<TR>
    <TD width="4%"></TD>
    <TD width="2%"></TD>
    <TD width="94%"></TD>
</TR>

<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    <I>Superior Catalyst Performance</I>.&#160;&#160;Our proprietary
    MPC<SUP style="font-size: 85%; vertical-align: text-top">&#174;</SUP>

    technology enables us to produce catalytic coatings capable of
    significantly better catalytic performance than previously
    available. We have achieved this demonstrated performance
    advantage by creating a catalyst using unique nanostructures
    with superior stability under prolonged exposure to high
    temperatures. This nanostructure technology enables the oxide
    catalysts in its compounds to resist sintering, or fusing,
    thereby maintaining a high catalytic surface area. As a result,
    in heavy duty diesel and automotive applications, our catalyst
    formulations are able to maintain high levels of performance
    over time using substantially lower platinum group metals than
    products previously available.
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    <I>Catalyst Cost Advantage</I>.&#160;&#160;In the automotive
    market in particular, where platinum group metal costs represent
    a large portion of manufacturers&#146; costs, a significant
    benefit of our catalyst technology is that it offers performance
    equal to or exceeding that of competing catalytic coatings with
    up to a 60% reduction in platinum group metal
    loadings&#160;&#151; platinum, palladium and rhodium. Platinum
    group metals have become increasingly expensive over the past
    15&#160;years due to growing demand and limited supply. In 2010,
    the average troy ounce costs of platinum group metals were $526
    for palladium, $1,609 for platinum and $2,384 for rhodium
    compared to the base metals used in certain of our catalysts
    that cost less than $1 per troy ounce.
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    <I>Highly Customizable Catalyst Formulations</I>.&#160;&#160;Our
    proprietary
    MPC<SUP style="font-size: 85%; vertical-align: text-top">&#174;</SUP>

    technology is a design approach, as opposed to a single chemical
    formulation. We have developed this technology since inception
    as a platform that can be tailored for a range of different
    industrial catalyst applications. Specifically, our formulations
    can be tailored in two distinct ways. First, the oxide compounds
    used in our formulations can be adapted for specific
    applications by adding to them, or doping them with, a wide
    range of chemical elements, a process known as tuning. By
    contrast, the catalyst offerings of our competitors can be tuned
    only by adjusting the platinum group metal content. Second, we
    are able to vary the mixtures of our compounds to create
    customized solutions for specific applications. These two
    independent design mechanisms allow for customization and
    optimization for different vehicle platforms within the auto
    industry, complex heavy duty diesel equipment for OEMs,
    aftermarket and retrofit markets, and for different applications
    in the energy sector, such as selective catalytic reduction
    nitrogen oxide control for industrial and utility boilers,
    process heaters, gas turbines and generator sets.
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    <I>Proven Durability</I>.&#160;&#160;Our products and systems
    have undergone substantial laboratory and field testing by our
    existing and prospective customers and have demonstrated their
    durability and reliability in a wide range of applications in
    actual use for many years. In addition, our products and systems
    have achieved numerous certifications and match or exceed
    industry standards. Of particular note, our Catalyst division
    has supplied over 10&#160;million catalyst parts to light duty
    vehicle customers since 1996.
</TD>
</TR>

</TABLE>
<!-- XBRL Pagebreak Begin -->
</DIV><!-- End box 1 -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    5
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<DIV style="width: 100%; height: 9in; border-top: 1px solid #000000; padding-top: 12pt; border-right: 1px solid #000000; padding-right: 12pt; border-bottom: 1px solid #000000; padding-bottom: 12pt; border-left: 1px solid #000000; padding-left: 12pt"><!-- Begin box 1 -->
<!-- XBRL Pagebreak End -->

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0">

<TR>
    <TD width="4%"></TD>
    <TD width="2%"></TD>
    <TD width="94%"></TD>
</TR>

<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    <I>Compatibility with Existing Manufacturing Infrastructure and
    Operating Specifications</I>.&#160;&#160;Catalytic converters
    using our catalyst products are compatible with existing
    automotive manufacturing processes as well as specific vehicle
    operating specifications. There is no need for our customers to
    change their manufacturing operations, processes, or how their
    products operate, in order to utilize our proprietary
    technology. Our heavy duty diesel emission control products and
    solutions are engineered to each customer&#146;s specific
    application and designed to deliver custom and industry-leading
    solutions that meet or exceed environmental mandates.
</TD>
</TR>

</TABLE>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">Strategy</FONT></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Our strategy is to grow a diversified, vertically-integrated
    emissions control business. We are focused on certain segments
    of the light duty vehicle and heavy duty diesel market that will
    benefit most from our catalyst technology and strengths in the
    heavy duty diesel systems space. Key elements of our growth
    strategy include:
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0">

<TR>
    <TD width="4%"></TD>
    <TD width="2%"></TD>
    <TD width="94%"></TD>
</TR>

<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    <I>Vertical integration</I>.&#160;&#160;We expect to continue to
    leverage our vertical integration to provide a variety of
    operational benefits within each of our divisions, including
    reduced manufacturing and delivery times, lower costs, direct
    sourcing of raw materials and improved quality control. By
    leveraging our vertical integration, we believe we can provide
    significant added value to our customers through our full range
    of service offerings, including catalyst design and
    customization, subsystem concept design and application
    engineering, product prototyping and development, and efficient
    pre-production, short-run and high-volume manufacturing.
    Additionally, we expect that our ability to supply our own
    manufactured catalyst products to our Heavy Duty Diesel Systems
    division, a capability that is unique in the emission control
    industry, will help drive improvements in gross margin.
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    <I>Capitalize on growing market for heavy duty diesel
    systems</I>.&#160;&#160;We believe the heavy duty diesel market
    should grow substantially over the next decade as new emission
    reduction targets for particulate matter and nitrogen oxide
    reduction are legislated in North America and Europe, and
    similar legislation is enacted in major countries such as China
    and India. In the near term, we plan to continue investing in
    our sales and distribution networks in California and London,
    where near-term mandates are expected to result in large
    increases in demand for our heavy duty diesel systems. With a
    broad array of existing products, new products in the pipeline
    and the benefit of our catalyst technology, we expect to benefit
    from this market growth. Our distribution channels include over
    100 distributors in the United States and nearly 200
    distributors worldwide.
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    <I>Focused growth of catalyst business</I>.&#160;&#160;Over the
    last several years, our Catalyst division has made several
    advances in low-platinum group metal and zero-platinum group
    metal technology, as well as in the ability to tailor catalyst
    performance to particular environments. In addition, our
    catalyst technology has been proven to provide benefit outside
    the traditional light duty vehicle and gasoline markets such as
    the heavy duty diesel markets, including through our own Heavy
    Duty Diesel Systems division. Our Catalyst division intends to
    focus on gaining more business from existing light duty vehicle
    customers and on selectively acquiring new customers who value
    the benefits of our technology. In addition, this division plans
    to increase its presence in the growing off- and on-road heavy
    duty diesel catalyst markets through organic growth and key
    partnerships.
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    <I>Partnerships and acquisitions</I>.&#160;&#160;Our Heavy Duty
    Diesel Systems division has been strengthened through the
    expansion of our North American distribution channel (currently
    over 120 distributors) and through partnerships with major
    companies operating in the on-road heavy duty diesel market
    (<I>e.g.</I>, Navistar and PACCAR). We may selectively enter
    into new partnerships to acquire new technologies or
    distribution capabilities. In addition, given the fragmented
    nature of this industry, we will continue to evaluate the
    acquisition of complementary businesses. Our Catalyst division
    has an investment in Asia (originally a joint venture, but in
    which our ownership stake has been reduced to 5%). Through this
    division, we plan to seek partnerships that may encompass
    technology sharing, manufacturing or distribution, in order to
    expand our presence in the heavy duty diesel on- and off-road
    markets. Opportunities to monetize our intellectual property
    estate outside these areas may be pursued through sale and
    licensing or partnerships to maximize the return on our
    investment.
</TD>
</TR>

</TABLE>
<!-- XBRL Pagebreak Begin -->
</DIV><!-- End box 1 -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    6
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<DIV style="width: 100%; height: 9in; border-top: 1px solid #000000; padding-top: 12pt; border-right: 1px solid #000000; padding-right: 12pt; border-bottom: 1px solid #000000; padding-bottom: 12pt; border-left: 1px solid #000000; padding-left: 12pt"><!-- Begin box 1 -->
<!-- XBRL Pagebreak End -->

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">Company
    Information</FONT></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Our principal executive offices are located at 4567 Telephone
    Road, Suite&#160;206, Ventura, California, 93003 and our
    telephone number at that location is
    <FONT style="white-space: nowrap">(805)&#160;639-9458.</FONT>
    We maintain an Internet website at www.cdti.com, and information
    regarding CSI&#146;s operations may be found at
    www.catsolns.com. Information contained in or accessible through
    either of these websites does not constitute part of this
    prospectus.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    We are a Delaware corporation formed in 1994 as a wholly-owned
    subsidiary of Fuel Tech, Inc., a Delaware corporation (formerly
    known as Fuel-Tech N.V., a Netherlands Antilles limited
    liability company) (&#147;Fuel Tech&#148;), and were spun off by
    Fuel Tech in a rights offering in December 1995. Since
    inception, and as set forth above, we developed a substantial
    portfolio of patents and related proprietary rights and
    extensive technological know-how.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    We currently conduct our operations primarily through our
    wholly-owned subsidiary, CSI. CSI is a California corporation
    formed in 1996, and through its Heavy Duty Diesel Systems
    division (acquired in December 2007), has over 30&#160;years of
    experience in the heavy duty diesel systems market and has
    proven technical and manufacturing competence in the light duty
    vehicle catalyst market meeting automakers&#146; most stringent
    requirements. From November&#160;22, 2006 through the Merger,
    CSI&#146;s common stock was listed on the AIM of the London
    Stock Exchange (AIM: CTS and CTSU).
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    We completed a business combination with CSI on October&#160;15,
    2010 when our wholly-owned subsidiary, CDTI Merger Sub, Inc.,
    merged with and into CSI. We refer to this transaction as the
    &#147;Merger.&#148; On October&#160;15, 2010, prior to the
    Merger, we also effected a
    <FONT style="white-space: nowrap">one-for-six</FONT>
    reverse stock split. The Merger was accounted for as a reverse
    acquisition and, as a result, our Company&#146;s (the legal
    acquirer) consolidated financial statements are now those of CSI
    (the accounting acquirer), with the assets and liabilities and
    revenues and expenses of CDTI being included effective from
    October&#160;15, 2010, the date of the closing of the Merger.
</DIV>
<!-- XBRL Pagebreak Begin -->
</DIV><!-- End box 1 -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    7
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<DIV style="width: 100%; height: 9in; border-top: 1px solid #000000; padding-top: 12pt; border-right: 1px solid #000000; padding-right: 12pt; border-bottom: 1px solid #000000; padding-bottom: 12pt; border-left: 1px solid #000000; padding-left: 12pt"><!-- Begin box 1 -->
<!-- XBRL Pagebreak End -->

<DIV align="center" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">The
    Offering</FONT></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

<TR>
    <TD width="36%"></TD>
    <TD width="1%"></TD>
    <TD width="63%"></TD>
</TR>

<TR>
    <TD valign="top">
    Common stock we are offering</TD>
    <TD></TD>
    <TD valign="bottom">
    &#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;shares</TD>
</TR>

<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD valign="top">
    Common stock offered by the selling stockholders</TD>
    <TD></TD>
    <TD valign="bottom">
    &#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;shares</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD valign="top">
    Common stock outstanding immediately after the offering</TD>
    <TD></TD>
    <TD valign="bottom">
    &#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;shares(1)</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD valign="top">
    Use of proceeds</TD>
    <TD></TD>
    <TD valign="bottom">
    We expect that the net proceeds from the offering, without
    exercise of the underwriter&#146;s over-allotment option, will
    be approximately $&#160;&#160;&#160;&#160;&#160;&#160;million.
    We intend to use the net proceeds from this offering for working
    capital and general corporate purposes. We will not receive any
    proceeds from shares sold by the selling stockholders. See
    &#147;Use of Proceeds.&#148;</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD valign="top">
    Risk factors</TD>
    <TD></TD>
    <TD valign="bottom">
    See &#147;Risk Factors&#148; beginning on page&#160;11 of this
    prospectus and under similar headings in the other documents
    that are incorporated by reference into this prospectus for a
    discussion of factors you should consider before investing in
    shares of our common stock.</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD valign="top">
    NASDAQ Capital Market symbol</TD>
    <TD></TD>
    <TD valign="bottom">
    &#147;CDTI&#148;</TD>
</TR>

</TABLE>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV style="font-size: 1pt; margin-left: 0%; width: 13%;  align: left; border-bottom: 1pt solid #000000"></DIV>

<DIV style="margin-top: 3pt; font-size: 1pt">&nbsp;</DIV>



<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

<TR>
    <TD width="2%"></TD>
    <TD width="1%"></TD>
    <TD width="97%"></TD>
</TR>

<TR>
    <TD valign="top">
    (1) </TD>
    <TD></TD>
    <TD valign="bottom">
    The number of shares of our common stock to be outstanding
    immediately after this offering is based on
    3,987,812&#160;shares outstanding as of March&#160;31, 2011.
    Such number of shares excludes:</TD>
</TR>

</TABLE>

<DIV style="margin-top: 3pt; font-size: 1pt">&nbsp;</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

<TR>
    <TD width="4%"></TD>
    <TD width="1%"></TD>
    <TD width="95%"></TD>
</TR>

<TR>
    <TD align="right" valign="top">
    &#160;&#149; </TD>
    <TD></TD>
    <TD valign="bottom">
    304,099&#160;shares of common stock issuable upon the exercise
    of options outstanding as of March&#160;31, 2011 with a weighted
    average exercise price of $23.75 per share;</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="right" valign="top">
    &#160;&#149; </TD>
    <TD></TD>
    <TD valign="bottom">
    913,436&#160;shares of common stock issuable upon the exercise
    of warrants outstanding as of March&#160;31, 2011 with a
    weighted average exercise price of $16.59 per share; and</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="right" valign="top">
    &#160;&#149; </TD>
    <TD></TD>
    <TD valign="bottom">
    393,768&#160;shares of common stock reserved for future issuance
    under our 1994 Incentive Plan.</TD>
</TR>

</TABLE>

<DIV style="margin-top: 3pt; font-size: 1pt">&nbsp;</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

<TR>
    <TD width="2%"></TD>
    <TD width="1%"></TD>
    <TD width="97%"></TD>
</TR>

<TR>
    <TD align="right" valign="top">
</TD>
    <TD></TD>
    <TD valign="bottom">
    The number of shares also does not include 369,853&#160;shares
    of common stock issuable upon the exercise of secured
    convertible notes issued on May&#160;6, 2011, which have a
    conversion price of $7.044 per share.</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="right" valign="top">
</TD>
    <TD></TD>
    <TD valign="bottom">
    Unless otherwise indicated, the information in this prospectus
    reflects and assumes no exercise by the underwriter of its
    option to purchase up to an
    additional&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;shares
    of our common stock from us to cover over-allotments.</TD>
</TR>

</TABLE>
<!-- XBRL Pagebreak Begin -->
</DIV><!-- End box 1 -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    8
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<DIV style="width: 100%; height: 9in; border-top: 1px solid #000000; padding-top: 12pt; border-right: 1px solid #000000; padding-right: 12pt; border-bottom: 1px solid #000000; padding-bottom: 12pt; border-left: 1px solid #000000; padding-left: 12pt"><!-- Begin box 1 -->
<!-- XBRL Pagebreak End -->

<DIV align="center" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">SELECTED
    FINANCIAL DATA</FONT></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    The following selected financial data has been derived from our
    audited consolidated financial statements, which for all periods
    prior to December&#160;31, 2010 reflect the financial statements
    of CSI, the accounting acquirer in the Merger. For the year
    ended December&#160;31, 2010 and the quarter ended
    March&#160;31, 2011, the selected financial data also includes
    the results of operations of CDTI following the Merger. The
    statements of operations data relating to the years ended
    December&#160;31, 2010 and 2009, and the balance sheet data as
    of December&#160;31, 2010 and 2009 should be read in conjunction
    with &#147;Management&#146;s Discussion and Analysis of
    Financial Condition and Results of Operations&#148; and the
    consolidated financial statements included in our Annual Report
    on
    <FONT style="white-space: nowrap">Form&#160;10-K,</FONT>
    which is incorporated by reference herein. The statements of
    operations data relating to the quarters ended March&#160;31,
    2011 and 2010, and the balance sheet data as of March&#160;31,
    2011 and 2010 should be read in conjunction with
    &#147;Management&#146;s Discussion and Analysis of Financial
    Condition and Results of Operations&#148; and the consolidated
    financial statements included in our Quarterly Report on
    <FONT style="white-space: nowrap">Form&#160;10-Q,</FONT>
    which is incorporated by reference herein. Beginning in the year
    ended December&#160;31, 2010, we combined &#147;Selling and
    marketing&#148; and &#147;General and administrative&#148;
    expenses into &#147;Selling, general and administrative&#148;
    expenses on our statement of operations and have reclassified
    prior periods to reflect this presentation. Our historical
    results are not necessarily indicative of the results to be
    expected in any future period. All amounts presented herein are
    expressed in thousands, except share and per-share data, unless
    otherwise specifically noted.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE border="0" width="100%" align="center" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
<!-- Table Width Row BEGIN -->
<TR style="font-size: 1pt" valign="bottom">
    <TD width="51%">&nbsp;</TD>	<!-- colindex=01 type=maindata -->
    <TD width="2%">&nbsp;</TD>	<!-- colindex=02 type=gutter -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=02 type=lead -->
    <TD width="5%" align="right">&nbsp;</TD>	<!-- colindex=02 type=body -->
    <TD width="1%" align="left">&nbsp;</TD>	<!-- colindex=02 type=hang1 -->
    <TD width="1%">&nbsp;</TD>	<!-- colindex=03 type=gutter -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=03 type=lead -->
    <TD width="5%" align="right">&nbsp;</TD>	<!-- colindex=03 type=body -->
    <TD width="1%" align="left">&nbsp;</TD>	<!-- colindex=03 type=hang1 -->
    <TD width="1%">&nbsp;</TD>	<!-- colindex=04 type=gutter -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=04 type=lead -->
    <TD width="5%" align="right">&nbsp;</TD>	<!-- colindex=04 type=body -->
    <TD width="1%" align="left">&nbsp;</TD>	<!-- colindex=04 type=hang1 -->
    <TD width="1%">&nbsp;</TD>	<!-- colindex=05 type=gutter -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=05 type=lead -->
    <TD width="5%" align="right">&nbsp;</TD>	<!-- colindex=05 type=body -->
    <TD width="1%" align="left">&nbsp;</TD>	<!-- colindex=05 type=hang1 -->
    <TD width="1%">&nbsp;</TD>	<!-- colindex=06 type=gutter -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=06 type=lead -->
    <TD width="5%" align="right">&nbsp;</TD>	<!-- colindex=06 type=body -->
    <TD width="1%" align="left">&nbsp;</TD>	<!-- colindex=06 type=hang1 -->
    <TD width="1%">&nbsp;</TD>	<!-- colindex=07 type=gutter -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=07 type=lead -->
    <TD width="5%" align="right">&nbsp;</TD>	<!-- colindex=07 type=body -->
    <TD width="1%" align="left">&nbsp;</TD>	<!-- colindex=07 type=hang1 -->
</TR>
<!-- Table Width Row END -->
<!-- TableOutputHead -->
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD nowrap align="center" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="14" nowrap align="center" valign="bottom">
    <B>For the Year Ended<BR>
    </B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="6" nowrap align="center" valign="bottom">
    <B>For the Three Months Ended<BR>
    </B>
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD nowrap align="center" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="14" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>December&#160;31,</B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="6" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>March&#160;31,</B>
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD nowrap align="center" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>2007</B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>2008</B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>2009</B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>2010</B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>2010</B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>2011</B>
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD nowrap align="center" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="22" nowrap align="center" valign="bottom">
    <B>(In thousands, except per share amounts)</B>
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR style="line-height: 3pt; font-size: 1pt">
<TD>&nbsp;
</TD>
</TR>
<!-- TableOutputBody -->
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    <B>STATEMENTS OF OPERATIONS DATA</B>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Revenues
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 20pt">
    Heavy Duty Diesel Systems division
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    342
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    27,126
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    25,916
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    31,161
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    7,499
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    9,458
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 20pt">
    Catalyst division
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    29,792
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    26,311
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    25,074
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    17,726
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    5,084
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    4,667
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 20pt">
    Eliminations
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (874
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (476
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (770
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (138
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (341
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
</TR>
<TR valign="bottom" style="font-size: 1pt">
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 20pt">
    Total revenues
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    30,134
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    52,563
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    50,514
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    48,117
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    12,445
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    13,784
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="font-size: 1pt">
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Gross profit
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    3,176
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    8,217
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    11,967
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    12,035
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    3,606
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    4,007
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    <B><I>Gross margin</I></B>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    <B><I>10.5</I></B>
</TD>
<TD nowrap align="left" valign="bottom">
    <B><I>%</I></B>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    <B><I>15.6</I></B>
</TD>
<TD nowrap align="left" valign="bottom">
    <B><I>%</I></B>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    <B><I>23.7</I></B>
</TD>
<TD nowrap align="left" valign="bottom">
    <B><I>%</I></B>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    <B><I>25.0</I></B>
</TD>
<TD nowrap align="left" valign="bottom">
    <B><I>%</I></B>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    <B><I>29.0</I></B>
</TD>
<TD nowrap align="left" valign="bottom">
    <B><I>%</I></B>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    <B><I>29.1</I></B>
</TD>
<TD nowrap align="left" valign="bottom">
    <B><I>%</I></B>
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Selling, general and administrative
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    11,445
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    15,776
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    12,480
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    11,923
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    3,037
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    4,551
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Research and development
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    7,702
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    8,942
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    7,257
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    4,373
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    988
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    1,514
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    In-process research and development(1)
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    6,635
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Delphi bid(2)
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    2,668
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Severance expense
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    234
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    1,429
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    261
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Recapitalization expense
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    1,258
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    3,247
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    167
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Impairment of long-lived assets
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    4,928
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Gain on sale of intellectual property
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (5,000
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (2,500
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (3,900
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (3,900
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="font-size: 1pt">
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 20pt">
    Total operating expenses
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    28,450
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    24,880
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    19,924
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    15,904
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    292
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    6,065
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="font-size: 1pt">
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 20pt">
    (Loss) income from operations
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (25,274
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (16,663
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (7,957
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (3,869
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    3,314
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (2,058
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Total other expense
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    1,376
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (2,601
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (2,577
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (5,463
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (441
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (40
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Income tax expense (benefit) from continuing operations
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    16
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    624
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (1,036
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    12
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    206
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    222
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="font-size: 1pt">
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 20pt">
    Net loss from continuing operations
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (23,914
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (19,888
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (9,498
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (9,344
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    2,667
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (2,320
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 20pt">
    Net income (loss) from discontinued operations
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    748
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (916
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    1,522
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    968
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (75
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (3
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
</TR>
<TR valign="bottom" style="font-size: 1pt">
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 20pt">
    Net loss
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    (23,166
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    (20,804
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    (7,976
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    (8,376
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    2,592
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    (2,323
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
</TR>
<TR valign="bottom" style="font-size: 1pt">
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
</TR>
</TABLE>
<!-- XBRL Pagebreak Begin -->
</DIV><!-- End box 1 -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    9
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<DIV style="width: 100%; height: 9in; border-top: 1px solid #000000; padding-top: 12pt; border-right: 1px solid #000000; padding-right: 12pt; border-bottom: 1px solid #000000; padding-bottom: 12pt; border-left: 1px solid #000000; padding-left: 12pt"><!-- Begin box 1 -->
<!-- XBRL Pagebreak End -->
<!-- XBRL Table Pagebreak -->

<TABLE border="0" width="100%" align="center" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
<!-- Table Width Row BEGIN -->
<TR style="font-size: 1pt" valign="bottom">
    <TD width="51%">&nbsp;</TD>	<!-- colindex=01 type=maindata -->
    <TD width="2%">&nbsp;</TD>	<!-- colindex=02 type=gutter -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=02 type=lead -->
    <TD width="5%" align="right">&nbsp;</TD>	<!-- colindex=02 type=body -->
    <TD width="1%" align="left">&nbsp;</TD>	<!-- colindex=02 type=hang1 -->
    <TD width="1%">&nbsp;</TD>	<!-- colindex=03 type=gutter -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=03 type=lead -->
    <TD width="5%" align="right">&nbsp;</TD>	<!-- colindex=03 type=body -->
    <TD width="1%" align="left">&nbsp;</TD>	<!-- colindex=03 type=hang1 -->
    <TD width="1%">&nbsp;</TD>	<!-- colindex=04 type=gutter -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=04 type=lead -->
    <TD width="5%" align="right">&nbsp;</TD>	<!-- colindex=04 type=body -->
    <TD width="1%" align="left">&nbsp;</TD>	<!-- colindex=04 type=hang1 -->
    <TD width="1%">&nbsp;</TD>	<!-- colindex=05 type=gutter -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=05 type=lead -->
    <TD width="5%" align="right">&nbsp;</TD>	<!-- colindex=05 type=body -->
    <TD width="1%" align="left">&nbsp;</TD>	<!-- colindex=05 type=hang1 -->
    <TD width="1%">&nbsp;</TD>	<!-- colindex=06 type=gutter -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=06 type=lead -->
    <TD width="5%" align="right">&nbsp;</TD>	<!-- colindex=06 type=body -->
    <TD width="1%" align="left">&nbsp;</TD>	<!-- colindex=06 type=hang1 -->
    <TD width="1%">&nbsp;</TD>	<!-- colindex=07 type=gutter -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=07 type=lead -->
    <TD width="5%" align="right">&nbsp;</TD>	<!-- colindex=07 type=body -->
    <TD width="1%" align="left">&nbsp;</TD>	<!-- colindex=07 type=hang1 -->
</TR>
<!-- Table Width Row END -->
<!-- TableOutputHead -->
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD nowrap align="center" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="14" nowrap align="center" valign="bottom">
    <B>For the Year Ended<BR>
    </B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="6" nowrap align="center" valign="bottom">
    <B>For the Three Months Ended<BR>
    </B>
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD nowrap align="center" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="14" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>December&#160;31,</B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="6" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>March&#160;31,</B>
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD nowrap align="center" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>2007</B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>2008</B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>2009</B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>2010</B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>2010</B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>2011</B>
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD nowrap align="center" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="22" nowrap align="center" valign="bottom">
    <B>(In thousands, except per share amounts)</B>
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR style="line-height: 3pt; font-size: 1pt">
<TD>&nbsp;
</TD>
</TR>
<!-- TableOutputBody -->
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    <B>Basic net (loss) income per share:</B>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 20pt">
    Net (loss) income from continuing operations
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    (47.07
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    (36.16
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    (17.27
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    (7.55
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    4.85
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    (0.58
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 20pt">
    Net income (loss) from discontinued operations
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    1.47
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (1.67
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    2.77
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    0.78
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (0.14
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="font-size: 1pt">
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 20pt">
    Net (loss) income
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    (45.60
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    (37.83
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    (14.50
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    (6.77
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    4.71
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    (0.58
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
</TR>
<TR valign="bottom" style="font-size: 1pt">
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    <B>Diluted net (loss) income per share:</B>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 20pt">
    Net (loss) income from continuing operations
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    (47.07
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    (36.16
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    (17.27
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    (7.55
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    4.83
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    (0.58
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 20pt">
    Net income (loss) from discontinued operations
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    1.47
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (1.67
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    2.77
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    0.78
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (0.13
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="font-size: 1pt">
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 20pt">
    Net (loss) income
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    (45.60
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    (37.83
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    (14.50
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    (6.77
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    4.70
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    (0.58
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
</TR>
<TR valign="bottom" style="font-size: 1pt">
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 20pt">
    Weighted average shares outstanding&#160;&#151; basic
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    508
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    550
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    550
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    1,238
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    550
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    3,984
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="font-size: 1pt">
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 20pt">
    Weighted average shares outstanding&#160;&#151; diluted
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    508
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    550
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    550
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    1,238
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    552
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    3,984
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="font-size: 1pt">
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
</TR>
</TABLE>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV style="font-size: 1pt; margin-left: 0%; width: 13%;  align: left; border-bottom: 1pt solid #000000"></DIV>

<DIV style="margin-top: 3pt; font-size: 1pt">&nbsp;</DIV>



<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

<TR>
    <TD width="2%"></TD>
    <TD width="1%"></TD>
    <TD width="97%"></TD>
</TR>

<TR>
    <TD align="right" valign="top">
    (1) </TD>
    <TD></TD>
    <TD valign="bottom">
    In process research and development is related to the
    acquisition of Engine Control Systems and was expensed at
    acquisition.</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="right" valign="top">
    (2) </TD>
    <TD></TD>
    <TD valign="bottom">
    Delphi bid represents expense incurred in our unsuccessful
    attempt to acquire Delphi&#146;s catalyst business out of
    bankruptcy and consists primarily of legal and consulting fees.</TD>
</TR>

</TABLE>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE border="0" width="100%" align="center" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
<!-- Table Width Row BEGIN -->
<TR style="font-size: 1pt" valign="bottom">
    <TD width="41%">&nbsp;</TD>	<!-- colindex=01 type=maindata -->
    <TD width="2%">&nbsp;</TD>	<!-- colindex=02 type=gutter -->
    <TD width="3%" align="right">&nbsp;</TD>	<!-- colindex=02 type=lead -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=02 type=body -->
    <TD width="3%" align="left">&nbsp;</TD>	<!-- colindex=02 type=hang1 -->
    <TD width="3%">&nbsp;</TD>	<!-- colindex=03 type=gutter -->
    <TD width="3%" align="right">&nbsp;</TD>	<!-- colindex=03 type=lead -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=03 type=body -->
    <TD width="3%" align="left">&nbsp;</TD>	<!-- colindex=03 type=hang1 -->
    <TD width="3%">&nbsp;</TD>	<!-- colindex=04 type=gutter -->
    <TD width="3%" align="right">&nbsp;</TD>	<!-- colindex=04 type=lead -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=04 type=body -->
    <TD width="3%" align="left">&nbsp;</TD>	<!-- colindex=04 type=hang1 -->
    <TD width="3%">&nbsp;</TD>	<!-- colindex=05 type=gutter -->
    <TD width="3%" align="right">&nbsp;</TD>	<!-- colindex=05 type=lead -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=05 type=body -->
    <TD width="3%" align="left">&nbsp;</TD>	<!-- colindex=05 type=hang1 -->
    <TD width="3%">&nbsp;</TD>	<!-- colindex=06 type=gutter -->
    <TD width="3%" align="right">&nbsp;</TD>	<!-- colindex=06 type=lead -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=06 type=body -->
    <TD width="3%" align="left">&nbsp;</TD>	<!-- colindex=06 type=hang1 -->
    <TD width="3%">&nbsp;</TD>	<!-- colindex=07 type=gutter -->
    <TD width="3%" align="right">&nbsp;</TD>	<!-- colindex=07 type=lead -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=07 type=body -->
    <TD width="3%" align="left">&nbsp;</TD>	<!-- colindex=07 type=hang1 -->
</TR>
<!-- Table Width Row END -->
<!-- TableOutputHead -->
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD nowrap align="center" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="15" align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>As of December&#160;31,</B>
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="7" align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>As of March&#160;31,</B>
</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD nowrap align="center" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="3" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>2007</B>
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="3" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>2008</B>
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="3" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>2009</B>
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="3" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>2010</B>
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="3" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>2010</B>
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="3" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>2011</B>
</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD nowrap align="center" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="23" align="center" valign="bottom">
    <B>(In thousands)</B>
</TD>
</TR>
<TR style="line-height: 3pt; font-size: 1pt">
<TD>&nbsp;
</TD>
</TR>
<!-- TableOutputBody -->
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    <B>BALANCE SHEET DATA</B>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Total current assets
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    38,164
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    30,806
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    18,596
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    17,645
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    16,197
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    15,965
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Total assets
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    65,739
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    49,714
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    30,243
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    32,648
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    27,847
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    31,078
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Total current liabilities
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    13,603
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    35,853
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    22,949
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    14,753
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    17,583
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    14,314
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Total long-term liabilities
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    18,029
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    2,448
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    1,411
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    2,552
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    1,426
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    2,607
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Stockholders&#146; equity
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    34,447
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    11,413
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    5,883
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    15,343
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    8,838
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    14,157
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Short-term debt
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    408
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    17,880
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    8,147
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    2,431
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    6,563
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    2,539
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Long-term debt
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    15,494
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    33
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    75
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    1,456
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    68
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    1,475
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
</TABLE>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

</DIV>
</DIV><!-- End box 1 -->
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    10
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<A name='V59644102'>
<DIV style="margin-top: 18pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">RISK
    FACTORS</FONT></B>
</DIV>
</A>
<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <I>Investing in our common stock involves risks. Before making
    an investment in our company, you should carefully consider the
    risk factors set forth below, which contain important
    information about us and our business. You should also consider
    any other information included in this prospectus and any
    prospectus supplement and any other information that we have
    incorporated by reference. Any of these risks, as well as other
    risks and uncertainties not known to us or that we believe to be
    immaterial, could harm our financial condition, results of
    operations or cash flows. We cannot assure you of a profit or
    protect you against a loss on the shares of our common stock
    that you purchase in our company</I>.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">Risks
    Relating to Our Business and Recent Merger</FONT></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">We
    will need to have additional sources of funding in order to
    conduct our operations for any reasonable length of time, and no
    such funding is yet in place or committed, nor do we have any
    assurances of additional funding.</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Although we and certain of our subsidiaries entered into a
    $7.5&#160;million secured demand facility backed by our
    receivables and inventory on February&#160;14, 2011 and used a
    portion of the initial advances under this facility to pay in
    full the balance of our obligations under the credit facility
    with Fifth Third Bank, and issued $3.0&#160;million of secured
    convertible notes on May&#160;6, 2011 to Kanis S.A., we will
    nevertheless need additional sources of funding in order to
    conduct our operations for any reasonable length of time. Any
    such additional funding may be in the form of debt financing or
    a private or public offering of equity securities. We believe
    that debt financing would be difficult to obtain because of our
    limited assets and cash flows as well as current general
    economic conditions. Any offering of shares of our common stock
    or of securities convertible into shares of our common stock may
    result in dilution to our existing stockholders. Our ability to
    consummate a financing will depend not only on our ability to
    achieve operating efficiencies and other synergies post-Merger,
    as well as our success in integrating CDTI&#146;s and CSI&#146;s
    operations, but also on conditions then prevailing in the
    relevant capital markets. There can be no assurance that such
    funding will be available if needed, or on acceptable terms. In
    the event that we are unable to raise such funds, we may be
    required to delay, reduce or severely curtail our operations or
    otherwise impede our on-going business efforts, which could have
    a material adverse effect on our business, operating results,
    financial condition and long-term prospects.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">Our
    auditor&#146;s report for the year ended December&#160;31, 2010
    includes a &#147;going concern&#148; explanatory
    paragraph.</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    The Merger was accounted for as a reverse acquisition and, as a
    result, our company&#146;s (the legal acquirer) consolidated
    financial statements are those of CSI (the accounting acquirer),
    with the assets and liabilities, and revenues and expenses, of
    CDTI being included effective from the date of the closing of
    the Merger. As of December&#160;31, 2010, we had an accumulated
    deficit of approximately $157.7&#160;million, and
    $160.0&#160;million of accumulated deficit as of March&#160;31,
    2011. As a result of recurring losses from operations and the
    significant amount of accumulated deficit as of
    December&#160;31, 2010, our auditor&#146;s report for year ended
    December&#160;31, 2010 includes an explanatory paragraph that
    expresses substantial doubt about our ability to continue as a
    &#147;going concern.&#148; Although the Merger provided some
    capital to the combined company, we nevertheless require
    additional capital in order to conduct our operations for any
    reasonable length of time. In the event that we are unable to
    raise such funds, we may be required to delay, reduce or
    severely curtail our operations or otherwise impede our on-going
    business efforts, which could have a material adverse effect on
    our business, operating results, financial condition and
    long-term prospects.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">Future
    growth of our business depends, in part, on the general
    availability of funding for emissions control programs, as well
    as enforcement of existing emissions-related environmental
    regulations and further tightening of emission standards
    worldwide.</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Future growth of our business depends in part on the general
    availability of funding for emissions control programs, which
    can be affected for economic as well as political reasons. For
    example, in light of the recent budget crisis in California,
    funding was not available for a state-funded emissions control
    project and its start date was
</DIV>
<!-- XBRL Paragraph Pagebreak -->
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    11
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    pushed back. A recent budget proposal put forth by the Obama
    administration did not include funding for the EPA&#146;s diesel
    emissions reduction act program in fiscal 2012. Funding for
    these types of emissions control projects drives demand for our
    projects. If such funding is not available, it can negatively
    affect our future growth prospects. In addition to funding, we
    also expect that our future business growth will be driven, in
    part, by the enforcement of existing emissions-related
    environmental regulations and tightening of emissions standards
    worldwide. If such standards do not continue to become stricter
    or are loosened or are not enforced by governmental authorities
    due to commercial and business pressure or otherwise, it could
    have a material adverse effect on our business, operating
    results, financial condition and long-term prospects.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">We
    have not experienced positive cash flow from our operations, and
    our ability to achieve positive cash flow from operations, or
    finance negative cash flow from operations, could depend on
    reductions in our operating costs, which may not be achievable,
    or from increased sales, which may not occur.</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Both CDTI and CSI historically operated with negative cash flow
    from operations. Although we have identified areas where
    economies can be effected, whether or not we will be successful
    in realizing these cost-savings, as well as when we are able to
    effect these economies and the overall restructuring costs we
    will incur cannot be known at this time. In addition, while we
    have identified revenue opportunities that if realized would
    positively affect our cash flows, there is no assurance that
    such opportunities will be realized. All of these will be
    important factors in determining whether we will have sufficient
    cash resources available to maintain our operations for any
    appreciable length of time.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">We may
    not realize all of the anticipated benefits of the
    Merger.</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    To be successful after the Merger, we need to combine and
    integrate the businesses and operations of CDTI and CSI. The
    combination of two independent companies is a complex, costly
    and time-consuming process. As a result, we must devote
    significant management attention and resources to integrating
    the diverse business practices. The integration process may
    divert the attention of our executive officers and management
    from
    <FONT style="white-space: nowrap">day-to-day</FONT>
    operations and disrupt the business of either or both of the
    companies and, if implemented ineffectively, preclude
    realization of the expected full benefits of the Merger. We have
    not completed a merger or acquisition comparable in size or
    scope to the Merger. Our failure to meet the challenges involved
    in successfully integrating the operations of CDTI and CSI or
    otherwise to realize any of the anticipated benefits of the
    Merger could cause an interruption of, or a loss of momentum in,
    our activities and could adversely affect our results of
    operations. In addition, the overall integration of the two
    companies may result in unanticipated problems, expenses,
    liabilities, competitive responses and loss of customer
    relationships, and may cause our stock price to decline. The
    difficulties of combining the operations of the companies
    include, among others:
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0">

<TR>
    <TD width="4%"></TD>
    <TD width="2%"></TD>
    <TD width="94%"></TD>
</TR>

<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    maintaining employee morale and retaining key employees;
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    preserving important strategic and customer relationships;
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    the diversion of management&#146;s attention from ongoing
    business concerns;
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    coordinating geographically separate organizations;
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    unanticipated issues in integrating information, communications
    and other systems;
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    coordinating marketing functions;
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    consolidating corporate and administrative infrastructures and
    eliminating duplicative operations;&#160;and
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    integrating the cultures of CDTI and CSI.
</TD>
</TR>

</TABLE>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    In addition, even if we are successful in integrating the
    businesses and operations of CDTI and CSI, we may not fully
    realize the expected benefits of the Merger, including sales or
    growth opportunities that were anticipated, within the intended
    time frame, or at all. Further, because our respective
    businesses differ, our results of operations and market price of
    our common stock may be affected by factors different from those
    existing prior to the Merger and may suffer as a result of the
    Merger. As a result, we cannot assure you that the combination
    of the businesses and operations of CDTI and CSI will result in
    the realization of the full benefits anticipated from the Merger.
</DIV>
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    12
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">The
    Merger will adversely affect our ability to take advantage of
    the significant U.S. federal tax loss carryforwards and tax
    credits accumulated.</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    We performed a study to evaluate the status of net operating
    loss carryforwards as a result of the Merger. Because the Merger
    caused an &#147;ownership change&#148; (as defined for
    U.S.&#160;federal income tax purposes) as of the date of the
    Merger, our ability to use our net operating losses and credits
    in future tax years will be significantly limited. In addition,
    due to the &#147;ownership change,&#148; our federal research
    and development credits have also been limited and,
    consequently, we do not anticipate being able to use any of
    these credits that existed as of the date of the Merger in
    future tax years. Our limited ability to use these net operating
    losses and tax credits as a result of the Merger could have an
    adverse effect on our results of operations.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">We
    have incurred significant expenses as a result of the Merger,
    and anticipate incurring additional Merger-related expenses,
    which will reduce the amount of capital available to fund our
    business.</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    We have incurred significant expenses relating to the Merger and
    expect to continue to incur expenses related to the Merger.
    These expenses include investment banking fees, legal fees,
    accounting fees, and printing and other costs. There may also be
    unanticipated costs related to the Merger that we have not yet
    determined. As a result, we will have less capital available to
    fund our activities, which could have an adverse effect on our
    business, financial condition and results of operations.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">We
    will continue to incur significant costs as a result of
    operating as a public company, and our management may be
    required to devote substantial time to compliance
    initiatives.</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    As a public company, we currently incur significant legal,
    accounting and other expenses. In addition, the Sarbanes-Oxley
    Act, as well as rules subsequently implemented by the Securities
    and Exchange Commission, or SEC, and the NASDAQ Stock Market,
    have imposed various requirements on public companies, including
    requiring establishment and maintenance of effective disclosure
    and financial controls as well as mandating certain corporate
    governance practices. Our management and other personnel devote
    a substantial amount of time and financial resources to these
    compliance initiatives.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    For example, we have devoted a significant amount of time and
    attention to bring our financial reporting procedures up to
    public-company standards so as to allow management to report on
    our internal control over financial reporting. These include
    ongoing costs in documenting, evaluating, testing and
    remediating our internal control procedures and systems as well
    as engaging consultants and specialists in Sarbanes-Oxley and
    SEC reporting and hiring additional personnel.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    If we fail to staff our accounting and finance function
    adequately, or maintain internal control systems adequate to
    meet the demands that are placed upon us as a public company,
    including the requirements of the Sarbanes-Oxley Act, we may be
    unable to report our financial results accurately or in a timely
    manner and our business and stock price may suffer. The costs of
    being a public company, as well as diversion of
    management&#146;s time and attention, may have a material
    adverse effect on our future business, financial condition and
    results of operations.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">We
    have incurred losses in the past and expect to incur losses in
    the future.</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Each of CDTI and CSI has suffered losses from operations since
    inception. As of December&#160;31, 2010, we had an accumulated
    deficit of $157.7&#160;million, and $160.0&#160;million of
    accumulated deficit as of March&#160;31, 2011. Although we
    expect to realize certain operating synergies from the Merger,
    we have not yet been able to generate positive cash flow from
    operations. There can be no assurance that we will achieve or
    sustain significant revenues, positive cash flows from
    operations or profitability in the future.
</DIV>
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    13
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">Historically,
    we have been dependent on a few major customers for a
    significant portion of our revenue and the revenue could decline
    if we are unable to maintain or develop relationships with
    current or potential customers, or if such customers reduce
    demand for our products.</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Historically, each of CDTI and CSI derived a significant portion
    of its respective revenue from a limited number of customers.
    Although the Merger provided additional customers to the
    combined company, for the year ended December&#160;31, 2010, two
    customers accounted for approximately 32% of our revenue (26%
    for the quarter ended March&#160;31, 2011). For the year ended
    December&#160;31, 2009, two customers accounted for
    approximately 46% of CSI&#146;s revenue and two customers
    accounted for approximately 26% of CDTI&#146;s revenue. We
    intend to establish long-term relationships with existing
    customers and continue to expand our customer base. While we
    diligently seek to become less dependent on any single customer,
    it is likely that certain business relationships may result in
    one or more customers contributing to a significant portion of
    our revenue in any given year for the foreseeable future. In
    addition, because our relationships with our customers are based
    on purchase orders rather than long-term formal supply
    agreements, we are exposed to the risk of reduced sales if such
    customers reduce demand for our products. Reduced demand may
    arise for a variety of reasons over which we have no control,
    such as slow downs in vehicle production due to economic
    concerns, or as a result of the effects of natural disasters,
    including earthquakes
    <FONT style="white-space: nowrap">and/or</FONT>
    tsunamis. The loss of one or more of our significant customers,
    or reduced demand from one or more of our significant customers,
    would result in an adverse effect on our revenue, and could
    affect our ability to become profitable or our ability to
    continue our business operations.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">We
    have entered into contractual agreements in connection with the
    sale of certain of our assets, which may expose us to liability
    for claims for indemnification under such
    agreements.</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    In the ordinary course of our business, we have entered into
    various agreements by which we may be obligated to indemnify the
    other party with respect to certain matters. Generally, these
    indemnification provisions are included in contracts arising in
    the normal course of business under which we customarily agree
    to hold the indemnified party harmless against losses arising
    from a breach of the contract terms. Payments by us under such
    indemnification clauses are generally conditioned on the other
    party making a claim. Such claims are generally subject to
    challenge by us and to dispute resolution procedures specified
    in the particular contract. Further, our obligations under these
    arrangements may be limited in terms of time
    <FONT style="white-space: nowrap">and/or</FONT>
    amount and, in some instances, we may have recourse against
    third parties for certain payments made by us. It is not
    possible to predict the maximum potential amount of future
    payments under these indemnification agreements due to the
    conditional nature of our obligations and the unique facts of
    each particular agreement.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">Foreign
    currency fluctuations could impact financial
    performance.</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Because of our activities in the U.K., Europe, Canada, South
    Africa and Asia, we are exposed to fluctuations in foreign
    currency rates. We may manage the risk to such exposure by
    entering into foreign currency futures and option contracts of
    which there was one in 2009 and none in 2010. Foreign currency
    fluctuations may have a significant effect on our operations in
    the future.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">Risks
    Related to Our Industry</FONT></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">We
    face constant changes in governmental standards by which our
    products are evaluated.</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    We believe that, due to the constant focus on the environment
    and clean air standards throughout the world, a requirement in
    the future to adhere to new and more stringent regulations both
    domestically and abroad is possible as governmental agencies
    seek to improve standards required for certification of products
    intended to promote clean air. In the event our products fail to
    meet these ever-changing standards, some or all of our products
    may become obsolete.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">We
    face competition and technological advances by
    competitors.</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    There is significant competition among companies that provide
    solutions for pollutant emissions from diesel engines. Several
    companies market products that compete directly with our
    products. Other companies offer products that potential
    customers may consider to be acceptable alternatives to our
    products and services, including
</DIV>
<!-- XBRL Paragraph Pagebreak -->
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    14
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    products that are verified by the EPA
    <FONT style="white-space: nowrap">and/or</FONT> the
    CARB or other environmental authorities. We face direct
    competition from companies with greater financial,
    technological, manufacturing and personnel resources. Newly
    developed products could be more effective and cost-efficient
    than our current or future products. We also face indirect
    competition from vehicles using alternative fuels, such as
    methanol, hydrogen, ethanol and electricity.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">We
    depend on intellectual property and the failure to protect our
    intellectual property could adversely affect our future growth
    and success.</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    We rely on patent, trademark and copyright law, trade secret
    protection, and confidentiality and other agreements with
    employees, customers, partners and others to protect our
    intellectual property. However, some of our intellectual
    property is not covered by any patent or patent application,
    and, despite precautions, it may be possible for third parties
    to obtain and use our intellectual property without
    authorization.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    We do not know whether any patents will be issued from pending
    or future patent applications or whether the scope of the issued
    patents is sufficiently broad to protect our technologies or
    processes. Moreover, patent applications and issued patents may
    be challenged or invalidated. We could incur substantial costs
    in prosecuting or defending patent infringement suits.
    Furthermore, the laws of some foreign countries may not protect
    intellectual property rights to the same extent as do the laws
    of the United States.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    The patents protecting our proprietary technologies expire after
    a period of time. Currently, our patents have expiration dates
    ranging from 2011 through 2027. Although we have attempted to
    incorporate technology from our core patents into specific
    patented product applications, product designs and packaging to
    extend the lives of our patents, there can be no assurance that
    this building block approach will be successful in protecting
    our proprietary technology. If we are not successful in
    protecting our proprietary technology, it could have a material
    adverse effect on our business, financial condition and results
    of operations.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    As part of our confidentiality procedures, we generally have
    entered into nondisclosure agreements with employees,
    consultants and corporate partners. We also have attempted to
    control access to and distribution of our technologies,
    documentation and other proprietary information. We plan to
    continue these procedures. Despite these procedures, third
    parties could copy or otherwise obtain and make unauthorized use
    of our technologies or independently develop similar
    technologies. The steps that we have taken and that may occur in
    the future might not prevent misappropriation of our solutions
    or technologies, particularly in foreign countries where laws or
    law enforcement practices may not protect the proprietary rights
    as fully as in the United States.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    There can be no assurance that we will be successful in
    protecting our proprietary rights. For example, from time to
    time we have become aware of competing technologies employed by
    third parties which may be covered by one or more of our
    patents. In such situations, we may seek to grant licenses to
    such third parties or seek to stop the infringement, including
    through the threat of legal action. There is no assurance that
    we would be successful in negotiating a license agreement on
    favorable terms, if at all, or able to stop the infringement.
    Any infringement upon our intellectual property rights could
    have an adverse effect on our ability to develop and sell
    commercially competitive systems and components.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">If we
    fail to obtain the right to use the intellectual property rights
    of others which are necessary to operate our business, our
    ability to succeed will be adversely affected.</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    From time to time we may choose to or be required to license
    technology or intellectual property from third parties in
    connection with the development of our products. We cannot
    assure you that third-party licenses will be available to us on
    commercially reasonable terms, if at all. Generally, a license,
    if granted, would include payments of up-front fees, ongoing
    royalties or both. These payments or other terms could have a
    significant adverse impact on our results of operations. The
    inability to obtain a necessary third-party license required for
    our product offerings or to develop new products and product
    enhancements could require us to substitute technology of lower
    quality or performance standards, or of greater cost, either of
    which could adversely affect our business. If we are not able to
    obtain licenses from third parties, if necessary, then we may
    also be subject to litigation to defend against infringement
    claims from these third parties. Our competitors may be able to
    obtain licenses or cross-license their technology on better
    terms than we can, which could put us at a competitive
    disadvantage. If we are unable to obtain
</DIV>
<!-- XBRL Paragraph Pagebreak -->
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    15
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    or maintain any third-party license required to develop new
    products and product enhancements, on favorable terms, our
    results of operations may be harmed.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">If
    third parties claim that our products infringe upon their
    intellectual property rights, we may be forced to expend
    significant financial resources and management time litigating
    such claims and our operating results could
    suffer.</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Third parties may claim that our products and systems infringe
    upon third-party patents and other intellectual property rights.
    Identifying third-party patent rights can be particularly
    difficult, notably because patent applications are generally not
    published until up to 18&#160;months after their filing dates.
    If a competitor were to challenge our patents, or assert that
    our products or processes infringe their patent or other
    intellectual property rights, we could incur substantial
    litigation costs, be forced to make expensive product
    modifications, pay substantial damages or even be forced to
    cease some operations. Third-party infringement claims,
    regardless of their outcome, would not only drain financial
    resources but also divert the time and effort of management and
    could result in customers or potential customers deferring or
    limiting their purchase or use of the affected products or
    services until resolution of the litigation.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">Our
    results may fluctuate due to certain regulatory, marketing and
    competitive factors over which we have little or no
    control.</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    The factors listed below, some of which we cannot control, may
    cause our revenue and results of operations to fluctuate
    significantly:
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0">

<TR>
    <TD width="4%"></TD>
    <TD width="2%"></TD>
    <TD width="94%"></TD>
</TR>

<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    Actions taken by regulatory bodies relating to the verification,
    registration or health effects of our products;
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    The extent to which our Platinum
    Plus<SUP style="font-size: 85%; vertical-align: text-top">&#174;</SUP>

    fuel-borne catalyst and
    ARIS<SUP style="font-size: 85%; vertical-align: text-top">&#174;</SUP>

    nitrogen oxides reduction products obtain market acceptance;
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    The timing and size of customer purchases;
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    Customer concerns about the stability of our business, which
    could cause them to seek alternatives to our solutions and
    products;&#160;and
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    Increases in raw material costs, particularly platinum group
    metals and rare earth metals.
</TD>
</TR>

</TABLE>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">Failure
    of one or more key suppliers to timely deliver could prevent,
    delay or limit us from supplying products. Delays in delivery
    times for platinum group metal purchases could also result in
    losses due to fluctuations in prices. Delays in the delivery
    times and cost impact of the world-wide shortage of rare earth
    metals could delay us from supplying products and could result
    in lower profits.</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Due to customer demands, we are required to source critical
    materials and components such as ceramic substrates from single
    suppliers. In 2010, three suppliers accounted for over 40% of
    our raw material purchases. Failure of one or more of the key
    suppliers to deliver timely could prevent, delay or limit us
    from supplying products because we would be required to qualify
    an alternative supplier. For certain products and customers, we
    are required to purchase platinum group metal materials. As
    commodities, platinum group metal materials are subject to daily
    price fluctuations and significant volatility, based on global
    market conditions. Historically, the cost of platinum group
    metals used in the manufacturing process has been passed through
    to the customer. This limits the economic risk of changes in
    market prices to platinum group metal usage in excess of nominal
    amounts allowed by the customer. However, going forward there
    can be no assurance that we will continue to be successful in
    passing platinum group metal price risk onto our current and
    future customers to minimize the risk of financial loss.
    Additionally, platinum group metal material is accounted for as
    inventory and therefore subject to lower of cost or market
    adjustments on a regular basis at the end of accounting periods.
    A drop in market prices relative to the purchase price of
    platinum group metal could result in a write-down of inventory.
    Due to the high value of platinum group metal materials, special
    measures have been taken to secure and insure the inventory.
    There is a risk that these measures may be inadequate and expose
    us to financial loss. We utilize rare earth metals in the
    production of some of our catalysts. Due to a reduction in
    export from China of these materials, there has been a
    world-wide shortage,
</DIV>
<!-- XBRL Paragraph Pagebreak -->
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    16
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    leading to a lack of supply and higher prices. We risk delays in
    shipment due to this constrained supply and potentially lower
    margins if we are unable to pass the increased costs on to our
    customers.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">Qualified
    management, marketing, and sales personnel are difficult to
    locate, hire and train, and if we cannot attract and retain
    qualified personnel, it will harm the ability of the business to
    grow.</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Our success depends, in part, on our ability to retain current
    key personnel, attract and retain future key personnel,
    additional qualified management, marketing, scientific, and
    engineering personnel, and develop and maintain relationships
    with research institutions and other outside consultants.
    Competition for qualified management, technical, sales and
    marketing employees is intense. In addition, as we work to
    integrate personnel following the Merger, some employees might
    leave the combined company and go to work for competitors. The
    loss of key personnel or the inability to hire or retain
    qualified personnel, or the failure to assimilate effectively
    such personnel could have a material adverse effect on our
    business, operating results and financial condition.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">We may
    not be able to successfully market new products that are
    developed or obtain direct or indirect verification or approval
    of our new products.</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Some of our catalyst products and heavy duty diesel systems are
    still in the development or testing stage with targeted
    customers. We are developing technologies in these areas that
    are intended to have a commercial application, however, there is
    no guarantee that such technologies will actually result in any
    commercial applications. In addition, we plan to market other
    emissions reduction devices used in combination with our current
    products. There are numerous development and verification issues
    that may preclude the introduction of these products for
    commercial sale. These proposed operations are subject to all of
    the risks inherent in a developing business enterprise,
    including the likelihood of continued operating losses. If we
    are unable to demonstrate the feasibility of these proposed
    commercial applications and products or obtain verification or
    approval for the products from regulatory agencies, we may have
    to abandon the products or alter our business plan. Such
    modifications to our business plan will likely delay achievement
    of revenue milestones and profitability.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">Any
    liability for environmental harm or damages resulting from
    technical faults or failures of our products could be
    substantial and could materially adversely affect our business
    and results of operations.</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Customers rely upon our products to meet emissions control
    standards imposed upon them by government. Failure of our
    products to meet such standards could expose us to claims from
    customers. Our products are also integrated into goods used by
    consumers and therefore a malfunction or the inadequate design
    of our products could result in product liability claims. Any
    liability for environmental harm or damages resulting from
    technical faults or failures could be substantial and could
    materially adversely affect our business and results of
    operations. In addition, a well-publicized actual or perceived
    problem could adversely affect the market&#146;s perception of
    our products, which would materially impact our financial
    condition and operating results.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">Future
    growth of our business depends, in part, on market acceptance of
    our catalyst products, successful verification of our products
    and retention of our verifications.</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    While we believe that there exists a viable market for our
    developing catalyst products, there can be no assurance that
    such technology will succeed as an alternative to
    competitors&#146; existing and new products. The development of
    a market for the products is affected by many factors, some of
    which are beyond our control. The adoption cycles of our key
    customers are lengthy and require extensive interaction with the
    customer to develop an effective and reliable catalyst for a
    particular application. While we continue to develop and test
    products with key customers, there can be no guarantee that all
    such products will be accepted and commercialized. Our
    relationships with our customers are based on purchase orders
    rather than long-term formal supply agreements. Generally, once
    a catalyst has successfully completed the testing and
    certification stage for a particular application, it is
    generally the only catalyst used on that application and
    therefore unlikely that, unless there are any defects, the
    customer will try to replace that catalyst with a competing
    product. However, our customers usually have alternate suppliers
    for their products and there is no assurance that we will
    continue to win the business. Also, although we work with our
    customers to obtain product verifications in accordance with
    their projected production requirements, there is no
</DIV>
<!-- XBRL Paragraph Pagebreak -->
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    17
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    guarantee that we will be able to receive all necessary
    approvals for our catalysts by the time a customer needs such
    products, or that a customer will not accelerate its
    requirements. If we are not successful in having verified
    catalyst products to meet customer requirements, it will have a
    negative effect on our revenues, which could have a material
    adverse affect on our results of operations.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    If a market fails to develop or develops more slowly than
    anticipated, we may be unable to recover the costs we will have
    incurred in the development of our products and may never
    achieve profitability. In addition, we cannot guarantee that we
    will continue to develop, manufacture or market our products or
    components if market conditions do not support the continuation
    of the product or component.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    We believe that it is an essential requirement of the
    U.S.&#160;retrofit market that emissions control products and
    systems are verified under the EPA
    <FONT style="white-space: nowrap">and/or</FONT> CARB
    protocols to qualify for funding from the EPA
    <FONT style="white-space: nowrap">and/or</FONT> CARB
    programs. Funding for these emissions control products and
    systems is generally limited to those products and technologies
    that have already been verified. Verification is also useful for
    commercial acceptability. Notably, EPA verifications were
    withdrawn on two of our products in January 2009 because
    available test results were not accepted by the EPA as meeting
    new emissions testing requirements for nitrogen dioxide (NO2)
    measurement. As a general matter, we have no assurance that our
    products will be verified by the CARB or that such a
    verification will be acceptable to the EPA. If we are not able
    to obtain necessary product verifications, it will limit our
    ability to commercialize such products, which could have a
    negative effect on our revenues and on our results of operations.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">New
    metal standards, lower environmental limits or stricter
    regulation for health reasons of platinum or cerium could be
    adopted and affect use of our products.</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    New standards or environmental limits on the use of platinum or
    cerium metal by a governmental agency could adversely affect our
    ability to use our Platinum
    Plus<SUP style="font-size: 85%; vertical-align: text-top">&#174;</SUP>

    fuel-borne catalyst in some applications. In addition, the CARB
    requires &#147;multimedia&#148; assessment (air, water, soil) of
    the fuel-borne catalyst. The EPA could require a
    &#147;Tier&#160;III&#148; test of the Platinum
    Plus<SUP style="font-size: 85%; vertical-align: text-top">&#174;</SUP>

    fuel-borne catalyst at any time to determine additional health
    effects of platinum or cerium, which tests may involve
    additional costs beyond our current resources.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">Risks
    Related to this Offering and Our Common Stock</FONT></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">This
    offering may adversely affect our ability to use our U.S.
    federal tax loss carryforwards and tax credits
    accumulated.</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    As noted above in &#147;Risks Relating to Our Business and
    Recent Merger&#160;&#151; The Merger will adversely affect our
    ability to take advantage of the significant U.S.&#160;federal
    tax loss carryforwards and tax credits accumulated,&#148; the
    Merger caused an &#147;ownership change&#148; (as defined for
    U.S.&#160;federal income tax purposes) that significantly limits
    our ability to use our net operating losses and tax credits in
    future years. This offering may cause another such
    &#147;ownership change,&#148; which may further limit our use of
    our net operating losses and tax credits in future years. These
    limitations on our ability to use U.S.&#160;federal tax loss
    carryforwards and tax credits may have an adverse effect on our
    results of operations.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">The
    investors in CSI&#146;s capital raise, who converted their
    shares of Class&#160;B common stock into shares of our common
    stock in the Merger, collectively hold a large percentage of our
    outstanding common stock, and, should they choose to act
    together, will have significant influence over the outcome of
    corporate actions requiring stockholder approval; such
    shareholders&#146; priorities for our business may be different
    from our other stockholders.</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    A significant amount of our outstanding common stock is
    collectively held by the purchasers of CSI&#146;s secured
    convertible notes in its capital raise (which notes converted
    into CSI&#146;s Class&#160;B common stock and were exchanged for
    shares of our common stock in the Merger). Accordingly, the
    investors in CSI&#146;s capital raise, who include the selling
    stockholders, should they choose to act together, will be able
    to significantly influence the outcome of any corporate
    transaction or other matter submitted to our stockholders for
    approval, including the election of directors, any merger,
    consolidation or sale of all or substantially all of our assets
    or any other significant corporate transaction, such that the
    investors in CSI&#146;s capital raise, should they choose to act
    together, could delay or prevent a
</DIV>
<!-- XBRL Paragraph Pagebreak -->
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    18
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    change of control of our company, even if such a change of
    control would benefit our other stockholders. The interests of
    the investors in CSI&#146;s capital raise may differ from the
    interests of our other stockholders.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">The
    price of our common stock may be adversely affected by the sale
    of a significant number of new common shares.</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    The sale, or availability for sale, of substantial amounts of
    our common stock could adversely affect the market price of our
    common stock and could impair our ability to raise additional
    working capital through the sale of equity securities. On
    October&#160;15, 2010, we issued (or reserved for issuance) an
    aggregate 2,287,872&#160;shares of our common stock and warrants
    to purchase an additional 666,581&#160;shares of our common
    stock, each on a post-split basis after eliminating fractional
    shares, in connection with the Merger. We also issued
    109,020&#160;shares and warrants to purchase an additional
    166,666&#160;shares of our common stock, each on a post-split
    basis after eliminating fractional shares, in a
    Regulation&#160;S offering, as well as 32,414&#160;shares and
    warrants to purchase an additional 14,863&#160;shares, each on a
    post-split basis after eliminating fractional shares, as
    compensation for services rendered in connection with the Merger
    and our Regulation&#160;S offering. Resales of these shares by
    the holders thereof (some of whom received registered shares and
    some of whom have registration rights or are able to engage in
    resales under Rule&#160;144), resales of the shares received
    upon exercise of the warrants, or the sale of additional shares
    by us in the public market or a private placement to fund our
    operations, or the perception by the market that these sales
    could occur, could contribute to downward pressure on the
    trading price of our stock.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">You
    will suffer immediate and substantial dilution, and the risk of
    dilution, perceived or actual, may contribute to downward
    pressure on the trading price of our stock.</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    The public offering price per share of our common stock is
    substantially higher than our net tangible book value per common
    share immediately after the offering. As a result, you will pay
    a price per share that substantially exceeds the book value of
    our assets after subtracting our liabilities. At an assumed
    public offering price of $&#160;&#160;&#160;&#160;&#160; per
    share, the last reported sale price of our common stock
    on&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;,
    2011, you will incur immediate and substantial dilution in the
    amount of $&#160;&#160;&#160;&#160;&#160; per share.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    In addition, we have outstanding convertible notes, warrants and
    stock options to purchase shares of our common stock, and it is
    contemplated that additional shares or options to acquire shares
    of our common stock will be issued for certain employees and
    others affiliated with our company. The exercise of these
    securities will result in the issuance of additional shares of
    our common stock. We may also issue additional shares of our
    common stock or securities exercisable for or convertible into
    shares of our common stock, whether in the public market or in a
    private placement to fund our operations, or as compensation.
    These issuances, particularly where the exercise price or
    purchase price is less than the current trading price for our
    common stock, could be viewed as dilutive to the holders of our
    common stock. The risk of dilution, perceived or actual, may
    cause existing stockholders to sell their shares of stock, which
    would contribute to a decrease in the price of shares of our
    common stock. In that regard, downward pressure on the trading
    price of our common stock may also cause investors to engage in
    short sales, which would further contribute to downward pressure
    on the trading price of our stock.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">There
    has historically been limited trading volume in, and significant
    volatility in the price of, our common stock on the NASDAQ
    Capital Market.</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    CDTI&#146;s common stock began trading on the NASDAQ Capital
    Market effective October&#160;3, 2007. Prior to this date,
    CDTI&#146;s common stock was traded on the OTC
    Bulletin&#160;Board. Historically, the trading volume in our
    common stock has been relatively limited and a consistently
    active trading market for our common stock may not develop. The
    average daily trading volume in CDTI&#146;s common stock on the
    NASDAQ Capital Market in 2010 prior to the Merger was
    approximately 5,700&#160;shares (on a pre-split basis). However,
    in the period immediately following the Merger and the reverse
    stock split, we experienced significantly higher trading volume
    than typical for our company. Unusual trading volume in our
    shares has continued to occur from time to time. For example, in
    the last three trading days in May 2011, the trading volume in
    our common stock exceeded four million shares on two consecutive
    days, and exceeded two million shares on the last trading day of
    the month, whereas the average trading volume for the first
    three weeks of May 2011 was 68,280&#160;shares per day.
</DIV>
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    19
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    There has been significant volatility in the market prices of
    publicly traded shares of emerging growth technology companies,
    including our shares. During the last two weeks of October 2010
    following the Merger and the reverse stock split, the price for
    a share of our common stock ranged from as low as $3.00 per
    share to as high as $44.38 per share. On June&#160;1, 2011, the
    closing price for a share of our common stock was $7.18 per
    share. Factors such as announcements of technical developments,
    verifications, establishment of distribution agreements,
    significant sales orders, changes in governmental regulation and
    developments in patent or proprietary rights may have a
    significant effect on the future market price of our common
    stock. As noted above, there has historically been a low average
    daily trading volume of our common stock. To the extent this
    trading pattern continues, the price of our common stock may
    fluctuate significantly as a result of relatively minor changes
    in demand for our shares and sales of our stock by holders.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">Our
    management will have broad discretion over the use of the
    proceeds from this offering and might not apply the proceeds of
    this offering in ways that increase the value of your
    investment.</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Our management will have broad discretion to use the net
    proceeds from this offering. We expect to use the net proceeds
    from this offering for working capital and general corporate
    purposes. We may fail to use these funds effectively to yield a
    significant return, or any return, on any investment of these
    net proceeds and we cannot assure you the proceeds will be used
    in a manner which you would approve.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><I><FONT style="font-family: 'Times New Roman', Times">We
    have not paid and do not intend to pay dividends on shares of
    our common stock.</FONT></I></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    We have not paid dividends on our common stock since inception,
    and do not intend to pay any dividends to our stockholders in
    the foreseeable future. We intend to reinvest earnings, if any,
    in the development and expansion of our business.
</DIV>
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    20
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<A name='V59644103'>
<DIV style="margin-top: 18pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">CAUTIONARY
    STATEMENT REGARDING FORWARD-LOOKING STATEMENTS</FONT></B>
</DIV>
</A>
<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    This prospectus, including documents incorporated by reference
    into this document, contains information considered
    &#147;forward-looking statements&#148; within the meaning of the
    Private Securities Litigation Reform Act of 1995 and the safe
    harbor provided by Section&#160;27A and Section&#160;21E of the
    Securities Exchange Act of 1934, as amended (the &#147;Exchange
    Act&#148;). These statements, which may be expressed in a
    variety of ways, including the use of future or present tense
    language, relate to, among other things: statements about our
    future results, the prospects of the combined company, and our
    plans, objectives and strategies. These forward-looking
    statements are based on assumptions that involve risks and
    uncertainties and that are subject to change based on various
    important factors (some of which are beyond our control),
    including those factors described under &#147;Risk Factors&#148;
    elsewhere in this prospectus and in the documents incorporated
    by reference in this prospectus. Actual results may differ
    materially from those expressed or implied as a result of these
    risks and uncertainties. All forward-looking statements speak
    only as of the date on which such statements are made, and we
    undertake no obligation to update any statement to reflect
    events or circumstances after the date on which such statement
    is made or to reflect the occurrence of unanticipated events. We
    caution you not to place undue reliance on these forward-looking
    statements, which speak only as of the date of this prospectus,
    in the case of forward-looking statements contained in this
    prospectus, or the dates of the documents incorporated by
    reference into this prospectus, in the case of forward-looking
    statements made in those incorporated documents.
</DIV>
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    21
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<A name='V59644104'>
<DIV style="margin-top: 18pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">USE OF
    PROCEEDS</FONT></B>
</DIV>
</A>
<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    We estimate that the net proceeds from this offering will be
    approximately $&#160;&#160;&#160;&#160;&#160;, assuming a public
    offering price of $&#160;&#160;&#160;&#160;&#160; per share, the
    last reported sale price of our common stock
    on&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;,
    2011, after deducting the estimated underwriting discounts and
    commissions and estimated offering expenses payable by us. If
    the underwriter&#146;s over-allotment option is exercised in
    full, we estimate that we will receive additional net proceeds
    of $&#160;&#160;&#160;&#160;&#160;&#160;million.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    A $1.00 increase (decrease) in the assumed public offering price
    would increase (decrease) the net proceeds to us by
    $&#160;&#160;&#160;&#160;&#160;&#160;million, after deducting
    estimated underwriting discounts and commissions and estimated
    offering expenses payable by us, assuming that the number of
    shares offered by us, as set forth on the cover page of this
    prospectus, remains the same. An increase (decrease) of
    1.0&#160;million in the number of shares offered by us would
    increase (decrease) the net proceeds to us by
    $&#160;&#160;&#160;&#160;&#160;&#160;million.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    We expect to use the net proceeds from this offering for working
    capital and general corporate purposes.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    We will not receive any proceeds from the sale of shares of our
    common stock by the selling stockholders, which are estimated to
    be approximately $&#160;&#160;&#160;&#160;&#160; , assuming a
    public offering price of $&#160;&#160;&#160;&#160;&#160; per
    share, the last reported sale price of our common stock
    on&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;,
    2011, after deducting the estimated underwriting discounts and
    commissions.
</DIV>

<A name='V59644105'>
<DIV style="margin-top: 18pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">DIVIDEND
    POLICY</FONT></B>
</DIV>
</A>
<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    We plan to retain any earnings for the foreseeable future for
    our operations. We have never paid any dividends on our common
    stock and do not anticipate paying any cash dividends in the
    foreseeable future. Any future determination to pay cash
    dividends will be at the discretion of our board of directors
    and will depend on our financial condition, operating results,
    capital requirements and such other factors as our board of
    directors deems relevant. In addition, our credit facility
    restricts our ability to pay dividends.
</DIV>
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    22
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<A name='V59644106'>
<DIV style="margin-top: 18pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">CAPITALIZATION</FONT></B>
</DIV>
</A>
<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    The following table sets forth our cash and cash equivalents and
    capitalization as of March&#160;31, 2011 on:
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0">

<TR>
    <TD width="4%"></TD>
    <TD width="2%"></TD>
    <TD width="94%"></TD>
</TR>

<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    an actual basis;&#160;and
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    an as-adjusted basis to also give effect to the sale by us
    of&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;shares
    of our common stock in this offering at an assumed public
    offering price of $&#160;&#160;&#160;&#160;&#160; per share, the
    last reported sale price of our common stock
    on&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;,
    2011, after deducting the estimated underwriting discounts and
    commissions and estimated offering expenses payable by us.
</TD>
</TR>

</TABLE>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    The information in this table should be read in conjunction with
    &#147;Management&#146;s Discussion and Analysis of Financial
    Condition and Results of Operations&#148; and our consolidated
    financial statements and related notes thereto incorporated by
    reference into this prospectus.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE border="0" width="100%" align="center" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
<!-- Table Width Row BEGIN -->
<TR style="font-size: 1pt" valign="bottom">
    <TD width="77%">&nbsp;</TD>	<!-- colindex=01 type=maindata -->
    <TD width="2%">&nbsp;</TD>	<!-- colindex=02 type=gutter -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=02 type=lead -->
    <TD width="7%" align="right">&nbsp;</TD>	<!-- colindex=02 type=body -->
    <TD width="1%" align="left">&nbsp;</TD>	<!-- colindex=02 type=hang1 -->
    <TD width="2%">&nbsp;</TD>	<!-- colindex=03 type=gutter -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=03 type=lead -->
    <TD width="8%" align="right">&nbsp;</TD>	<!-- colindex=03 type=body -->
    <TD width="1%" align="left">&nbsp;</TD>	<!-- colindex=03 type=hang1 -->
</TR>
<!-- Table Width Row END -->
<!-- TableOutputHead -->
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD nowrap align="center" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>Actual</B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>As Adjusted</B>
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD nowrap align="center" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="6" align="center" valign="bottom">
    <B>(In thousands)</B>
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR style="line-height: 3pt; font-size: 1pt">
<TD>&nbsp;
</TD>
</TR>
<!-- TableOutputBody -->
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Cash and cash equivalents
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    1,245
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Current and long-term debt
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    4,014
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Common stock warrant liability
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    766
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Stockholders&#146; equity:
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Preferred stock, par value $0.01 per share: authorized 100,000;
    no shares issued and outstanding, actual and as-adjusted
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Common stock, par value $0.01 per share: authorized 12,000,000;
    issued and outstanding 3,987,812, actual;
    and&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;shares
    outstanding, as adjusted
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    40
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Additional paid-in capital
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    173,848
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Accumulated other comprehensive income
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    312
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Accumulated deficit
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    (160,043
</TD>
<TD nowrap align="left" valign="bottom">
    )
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="font-size: 1pt">
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Total stockholders&#146; equity
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    14,157
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="font-size: 1pt">
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    <B>Total capitalization</B>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    <B>$</B>
</TD>
<TD nowrap align="right" valign="bottom">
    <B>20,182</B>
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    <B>$</B>
</TD>
<TD nowrap align="right" valign="bottom">
    <B>&#160;&#160;&#160;&#160;&#160;</B>
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="font-size: 1pt">
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 3px double #000000">
&nbsp;
</TD>
<TD style="border-top: 3px double #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 3px double #000000">
&nbsp;
</TD>
<TD style="border-top: 3px double #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
</TR>
</TABLE>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    The table above does not include:
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0">

<TR>
    <TD width="4%"></TD>
    <TD width="2%"></TD>
    <TD width="94%"></TD>
</TR>

<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    304,099&#160;shares of common stock issuable upon the exercise
    of options outstanding as of March&#160;31, 2011 with a weighted
    average exercise price of $23.75 per share;
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    913,436&#160;shares of common stock issuable upon the exercise
    of warrants outstanding as of March&#160;31, 2011 with a
    weighted average exercise price of $16.59 per share;
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    393,768&#160;shares of common stock reserved for future issuance
    under our 1994 Incentive Plan;&#160;and
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    &#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;additional
    shares of common stock subject to the underwriter&#146;s
    over-allotment option.
</TD>
</TR>

</TABLE>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    The table above also does not reflect 369,853&#160;shares of
    common stock issuable upon the exercise of secured convertible
    notes issued on May&#160;6, 2011, which have a conversion price
    of $7.044 per share.
</DIV>
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    23
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<A name='V59644107'>
<DIV style="margin-top: 18pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">DILUTION</FONT></B>
</DIV>
</A>
<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    If you invest in our common stock, your ownership interest will
    be diluted to the extent of the difference between the public
    offering price per share and the as adjusted net tangible book
    value per share after this offering. Net tangible book value per
    share represents the amount of our total tangible assets less
    total liabilities, divided by the number of shares of common
    stock outstanding. Dilution in the as adjusted net tangible book
    value per share represents the difference between the amount per
    share paid by purchasers of our common stock in this offering
    and the as adjusted net tangible book value per share of common
    stock immediately after the consummation of this offering.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    As of March&#160;31, 2011, our historical net tangible book
    value was approximately $2.3&#160;million, or $0.58 per share.
    After giving effect to the sale by us of
    the&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;shares
    of our common stock in this offering at an assumed public
    offering price of $&#160;&#160;&#160;&#160;&#160; per share, the
    last reported sale price of our common stock
    on&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;,
    2011, less underwriting discounts and commissions and estimated
    offering expenses payable by us, our as adjusted net tangible
    book value as of March&#160;31, 2011 would have been
    approximately $&#160;&#160;&#160;&#160;&#160;&#160;million, or
    approximately $&#160;&#160;&#160;&#160;&#160; per share. This
    represents an immediate increase in net tangible book value of
    $&#160;&#160;&#160;&#160;&#160; per share to existing
    stockholders and an immediate dilution in net tangible book
    value of $&#160;&#160;&#160;&#160;&#160; per share to investors
    in the shares of common stock offered in this offering. The
    following table illustrates this per share dilution:
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE border="0" width="100%" align="center" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
<!-- Table Width Row BEGIN -->
<TR style="font-size: 1pt" valign="bottom">
    <TD width="83%">&nbsp;</TD>	<!-- colindex=01 type=maindata -->
    <TD width="2%">&nbsp;</TD>	<!-- colindex=02 type=gutter -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=02 type=lead -->
    <TD width="4%" align="right">&nbsp;</TD>	<!-- colindex=02 type=body -->
    <TD width="1%" align="left">&nbsp;</TD>	<!-- colindex=02 type=hang1 -->
    <TD width="3%">&nbsp;</TD>	<!-- colindex=03 type=gutter -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=03 type=lead -->
    <TD width="4%" align="right">&nbsp;</TD>	<!-- colindex=03 type=body -->
    <TD width="1%" align="left">&nbsp;</TD>	<!-- colindex=03 type=hang1 -->
</TR>
<!-- Table Width Row END -->
<!-- TableOutputHead -->
<!-- TableOutputBody -->
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Assumed public offering price per share
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    &#160;&#160;&#160;&#160;&#160;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 20pt">
    Historical net tangible book value per share as of
    March&#160;31, 2011
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    &#160;&#160;&#160;&#160;&#160;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 20pt">
    Increase in net tangible book value per share attributable to
    this offering
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="font-size: 1pt">
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    As adjusted net tangible book value per share after this offering
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="font-size: 1pt">
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Dilution per share to new investors
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="font-size: 1pt">
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 3px double #000000">
&nbsp;
</TD>
<TD style="border-top: 3px double #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
</TR>
</TABLE>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    A $1.00 increase (decrease) in the assumed public offering price
    of $&#160;&#160;&#160;&#160;&#160; per share, the last reported
    sale price of our common stock
    on&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;,
    2011, would increase (decrease) our as adjusted net tangible
    book value by approximately
    $&#160;&#160;&#160;&#160;&#160;&#160;million, or
    $&#160;&#160;&#160;&#160;&#160; per share, and the dilution per
    share to investors in this offering by approximately
    $&#160;&#160;&#160;&#160;&#160; per share, assuming no change to
    the number of shares offered by us as set forth on the cover
    page of this prospectus, and after deducting underwriting
    discounts and commissions and estimated offering expenses
    payable by us. We may also increase or decrease the number of
    shares we are offering. A 1.0&#160;million increase (decrease)
    in the number of shares offered by us would increase (decrease)
    our as adjusted net tangible book value by approximately
    $&#160;&#160;&#160;&#160;&#160;&#160;million, or
    $&#160;&#160;&#160;&#160;&#160; per share, assuming an public
    offering price of $&#160;&#160;&#160;&#160;&#160; per share, the
    last reported sale price of our common stock
    on&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;,
    2011, and the dilution per share to investors in this offering
    by approximately $&#160;&#160;&#160;&#160;&#160; per share after
    deducting underwriting discounts and commissions and estimated
    offering expenses payable by us. The as adjusted information
    discussed above is illustrative only.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    The discussion and table above exclude:
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0">

<TR>
    <TD width="4%"></TD>
    <TD width="2%"></TD>
    <TD width="94%"></TD>
</TR>

<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    304,099&#160;shares of common stock issuable upon the exercise
    of options outstanding as of March&#160;31, 2011 with a weighted
    average exercise price of $23.75 per share;
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    913,436&#160;shares of common stock issuable upon the exercise
    of warrants outstanding as of March&#160;31, 2011 with a
    weighted average exercise price of $16.59 per share;&#160;and
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    393,768&#160;shares of common stock reserved for future issuance
    under our 1994 Incentive Plan.
</TD>
</TR>

</TABLE>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    The discussion above also excludes 369,853&#160;shares of common
    stock issuable upon the exercise of secured convertible notes
    issued on May&#160;6, 2011, which have a conversion price of
    $7.044 per share.
</DIV>
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    24
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<A name='V59644108'>
<DIV style="margin-top: 18pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">PRINCIPAL
    AND SELLING STOCKHOLDERS</FONT></B>
</DIV>
</A>
<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">Beneficial
    Ownership Information</FONT></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    The following table sets forth information known to us regarding
    the beneficial ownership of common stock as of March&#160;31,
    2011 by: (i)&#160;each of the selling stockholders,
    (ii)&#160;each person known to Clean Diesel to beneficially own
    more than 5% of its outstanding shares of common stock at such
    date; (iii)&#160;each of Clean Diesel&#146;s Directors
    (including all nominees for Director) at such date;
    (iv)&#160;Clean Diesel&#146;s &#147;Named Executive
    Officers&#148;; and (v)&#160;all Directors and executive
    officers as a group at such date.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE border="0" width="100%" align="center" cellpadding="0" cellspacing="0" style="font-size: 9pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
<!-- Table Width Row BEGIN -->
<TR style="font-size: 1pt" valign="bottom">
    <TD width="42%">&nbsp;</TD>	<!-- colindex=01 type=maindata -->
    <TD width="2%">&nbsp;</TD>	<!-- colindex=02 type=gutter -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=02 type=lead -->
    <TD width="7%" align="right">&nbsp;</TD>	<!-- colindex=02 type=body -->
    <TD width="1%" align="left">&nbsp;</TD>	<!-- colindex=02 type=hang1 -->
    <TD width="2%">&nbsp;</TD>	<!-- colindex=03 type=gutter -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=03 type=lead -->
    <TD width="10%" align="right">&nbsp;</TD>	<!-- colindex=03 type=body -->
    <TD width="1%" align="left">&nbsp;</TD>	<!-- colindex=03 type=hang1 -->
    <TD width="2%">&nbsp;</TD>	<!-- colindex=04 type=gutter -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=04 type=lead -->
    <TD width="6%" align="right">&nbsp;</TD>	<!-- colindex=04 type=body -->
    <TD width="1%" align="left">&nbsp;</TD>	<!-- colindex=04 type=hang1 -->
    <TD width="2%">&nbsp;</TD>	<!-- colindex=05 type=gutter -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=05 type=lead -->
    <TD width="7%" align="right">&nbsp;</TD>	<!-- colindex=05 type=body -->
    <TD width="1%" align="left">&nbsp;</TD>	<!-- colindex=05 type=hang1 -->
    <TD width="2%">&nbsp;</TD>	<!-- colindex=06 type=gutter -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=06 type=lead -->
    <TD width="8%" align="right">&nbsp;</TD>	<!-- colindex=06 type=body -->
    <TD width="1%" align="left">&nbsp;</TD>	<!-- colindex=06 type=hang1 -->
</TR>
<!-- Table Width Row END -->
<!-- TableOutputHead -->
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom">
    <B>Number of<BR>
    </B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom">
    <B>Percentage<BR>
    </B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom">
    <B>Number of<BR>
    </B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom">
    <B>Number<BR>
    </B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom">
    <B>Percentage<BR>
    </B>
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom">
    <B>Share<BR>
    </B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom">
    <B>Beneficially<BR>
    </B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom">
    <B>Shares<BR>
    </B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom">
    <B>of Shares<BR>
    </B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom">
    <B>Beneficially<BR>
    </B>
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom">
    <B>Before the<BR>
    </B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom">
    <B>Owned Before<BR>
    </B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom">
    <B>Offered<BR>
    </B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom">
    <B>After the<BR>
    </B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom">
    <B>Owned After<BR>
    </B>
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD nowrap align="left" valign="bottom">
<DIV style="border-bottom: 1px solid #000000; width: 1%; padding-bottom: 1px">
    <B>Beneficial Owner Name and Address(1)</B>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>Offering(2)</B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>the Offering(3)</B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>Hereby</B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>Offering(2)</B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>the Offering</B>
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR style="line-height: 3pt; font-size: 1pt">
<TD>&nbsp;
</TD>
</TR>
<!-- TableOutputBody -->
<TR valign="bottom" style="background: #CCEEFF">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    <I>Selling Stockholders:</I>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    RockPort Capital Partners, L.P.(4)&#160;
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    416,073
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    10.3
</TD>
<TD nowrap align="left" valign="bottom">
    %
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    RP Co-Investment Fund&#160;I, L.P.(5)
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    41,950
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    1.0
</TD>
<TD nowrap align="left" valign="bottom">
    %
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    *
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    <I>Five Percent or More Beneficial Owners:</I>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    Cycad Group LLC(6)
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    407,475
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    10.1
</TD>
<TD nowrap align="left" valign="bottom">
    %
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    John A. Kanis(7)
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    398,722
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    9.7
</TD>
<TD nowrap align="left" valign="bottom">
    %
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    EnerTech Capital Partners(8)
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    344,094
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    8.6
</TD>
<TD nowrap align="left" valign="bottom">
    %
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    Allen&#160;&#038; Company LLC(9)
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    377,776
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    6.7
</TD>
<TD nowrap align="left" valign="bottom">
    %
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    <I>Directors:</I>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    Charles F. Call(10)
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    62,784
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    1.6
</TD>
<TD nowrap align="left" valign="bottom">
    %
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    Bernard H. &#147;Bud&#148; Cherry(11)
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    23,761
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    *
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    *
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    Alexander &#147;Hap&#148; Ellis&#160;III(12)
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    2,917
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    *
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    *
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    Charles R. Engles,&#160;Ph.D.(13)
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    26,971
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    *
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    *
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    Derek R. Gray(14)
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    66,199
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    1.6
</TD>
<TD nowrap align="left" valign="bottom">
    %
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    Mungo Park(15)
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    97,522
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    2.4
</TD>
<TD nowrap align="left" valign="bottom">
    %
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    Timothy Rogers(16)
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    11,786
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    *
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    *
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    <I>Named Executive Officers:</I>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    Michael L. Asmussen(17)
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    1,389
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    *
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    *
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    Charles W. Grinnell(18)
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    10,048
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    *
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    *
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    Daniel K. Skelton,&#160;Ph.D.(19)
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    8,410
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    *
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    *
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    <I>Executive Officers:</I>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    Stephen J. Golden,&#160;Ph.D.(20)
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    24,883
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    *
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    *
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    Christopher J. Harris(21)
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    6,250
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    *
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    *
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    Nikhil A. Mehta(22)
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    9,500
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    *
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    *
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    David E. Shea(23)
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    2,500
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    *
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    *
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    All Directors and Officers as a Group (12&#160;persons)(24)
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    343,483
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    8.1
</TD>
<TD nowrap align="left" valign="bottom">
    %
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    &#151;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -9pt; margin-left: 9pt">
    * less than 1%
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
</TABLE>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV style="font-size: 1pt; margin-left: 0%; width: 13%;  align: left; border-bottom: 1pt solid #000000"></DIV>

<DIV style="margin-top: 3pt; font-size: 1pt">&nbsp;</DIV>



<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="96%"></TD>
</TR>

<TR>
    <TD align="right" valign="top">
    (1) </TD>
    <TD></TD>
    <TD valign="bottom">
    The address of RockPort Capital Partners is 160 Federal Street,
    18th Floor, Boston, Massachusetts 02110; the address of Cycad
    Group LLC is 6187 Carpinteria Avenue, Suite&#160;300,
    Carpinteria, California 93014; the address of John A. Kanis is
    <FONT style="white-space: nowrap">c/o&#160;Kanis,</FONT>
    S.A., 82 Z Portland Place, London W1B 1NS, England; the address
    of EnerTech Capital Partners is Building D, Suite&#160;105,
    625&#160;West Ridge Pike, Conshohocken, Pennsylvania 19428; the
    address of Allen&#160;&#038; Company LLC is 711&#160;Fifth
    Avenue, New York, New York 10022; the address of the Directors,
    Named Executive Officers and Executive Officers is
    <FONT style="white-space: nowrap">c/o&#160;Clean</FONT>
    Diesel Technologies, Inc., 4567 Telephone Road, Suite&#160;206,
    Ventura, California 93003.</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="right" valign="top">
    (2) </TD>
    <TD></TD>
    <TD valign="bottom">
    To our knowledge, unless otherwise indicated in the footnotes to
    this table, we believe that each of the persons named in the
    table has sole voting and investment power with respect to all
    shares shown as beneficially owned </TD>
</TR>
<!-- XBRL Paragraph Pagebreak -->

</TABLE>
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    25
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="96%"></TD>
</TR>

<TR>
    <TD valign="top">
</TD>
    <TD></TD>
    <TD valign="bottom">
    by them, subject to community property laws where applicable (or
    other beneficial ownership shared with a spouse) and the
    information contained in this table and these notes.</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="right" valign="top">
</TD>
    <TD></TD>
    <TD valign="bottom">
    Beneficial ownership has been determined in accordance with SEC
    rules, which generally attribute beneficial ownership of
    securities to each person who possesses, either solely or shared
    with others, the power to vote or dispose of those securities.
    These rules also treat as beneficially owned all shares that a
    person would receive upon exercise of stock options or warrants
    held by that person that are immediately exercisable or
    exercisable within 60&#160;days of the determination date, which
    is March&#160;31, 2011 for this purpose. Such shares are deemed
    to be outstanding for the purpose of computing the number of
    shares beneficially owned and the percentage ownership of the
    person holding such options or warrants, but these shares are
    not treated as outstanding for the purpose of computing the
    percentage ownership of any other person.</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="right" valign="top">
    (3) </TD>
    <TD></TD>
    <TD valign="bottom">
    The percentage of Clean Diesel beneficially owned is based on
    3,987,812&#160;shares of Clean Diesel common stock issued and
    outstanding on March&#160;31, 2011 and assumes no exercise of
    the underwriters&#146; over allotment option.</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="right" valign="top">
    (4) </TD>
    <TD></TD>
    <TD valign="bottom">
    As reflected in the Schedule&#160;13D filed on October&#160;22,
    2010 by Rockport Capital Partners, L.P., Alexander
    &#147;Hap&#148; Ellis,&#160;III, Janet B. James, William E.
    James, Charles J. McDermott, David J. Prend and Stoddard
    M.&#160;Wilson, as the sole managing members of RockPort Capital
    I LLC, which is the general partner of RockPort Capital
    Partners, L.P., share voting and investment power over the
    shares listed above. Beneficial ownership includes
    375,853&#160;shares held directly and warrants to acquire
    40,220&#160;shares at $7.92 per share. Mr.&#160;Ellis has been a
    member of our Board of Directors since the effective time of the
    Merger and, prior to the Merger, was a member of the Board of
    Directors of CSI.</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="right" valign="top">
    (5) </TD>
    <TD></TD>
    <TD valign="bottom">
    As reflected in the Schedule&#160;13D filed on October&#160;22,
    2010 by RP Co-Investment Fund&#160;&#160;I, L.P., Alexander
    &#147;Hap&#148; Ellis,&#160;III Janet B. James, William E.
    James, Charles J. McDermott, David J. Prend and Stoddard
    M.&#160;Wilson, as the sole managing members of RP Co-Investment
    Fund&#160;I GP, LLC, which is the general partner of RP
    Co-Investment Fund&#160;I, L.P., share voting and investment
    power over the shares listed above. Beneficial ownership
    includes 26,842&#160;shares held directly and warrants to
    acquire 15,108&#160;shares at $7.92 per share. Mr.&#160;Ellis
    has been a member of our Board of Directors since the effective
    time of the Merger and, prior to the Merger, was a member of the
    Board of Directors of CSI.</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="right" valign="top">
    (6) </TD>
    <TD></TD>
    <TD valign="bottom">
    As reflected in the Schedule&#160;13G filed on October&#160;22,
    2010 by Cycad Group LLC, K. Leonard Judson and Paul F. Glenn
    share voting and investment power over the shares listed above.
    Beneficial ownership includes 369,472&#160;shares held directly,
    warrants to acquire 28,144&#160;shares at $7.92 per share and
    warrants to acquire 9,859&#160;shares at $2.79 per share.
    Beneficial ownership does not reflect warrants to acquire an
    additional 8,607&#160;shares at $7.92 per share, which warrants
    are issuable upon the exercise in full of the warrants to
    acquire 9,859&#160;shares.</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="right" valign="top">
    (7) </TD>
    <TD></TD>
    <TD valign="bottom">
    As reflected in the Schedule&#160;13G filed on February&#160;3,
    2011 by Kanis S.A. and John A. Kanis, includes
    266,548&#160;shares of common stock and warrants to acquire
    128,707&#160;shares of common stock held by Kanis S.A. Does not
    include warrant to acquire 25,000&#160;shares of common stock
    held by Kanis S.A. that is not currently exercisable. Does not
    include 369,853&#160;shares issuable upon conversion of
    convertible note to be issued pursuant to a Subordinated
    Convertible Notes Commitment Letter dated April&#160;11, 2011.
    John A. Kanis is the sole stockholder of Kanis S.A. and controls
    the voting and investment decisions of Kanis S.A.; accordingly,
    John A. Kanis may be deemed to share beneficial ownership of all
    shares of common stock beneficially owned by Kanis S.A.</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="right" valign="top">
    (8) </TD>
    <TD></TD>
    <TD valign="bottom">
    As reflected in the Schedule&#160;13G/A filed on
    February&#160;4, 2011 by EnerTech Capital Partners&#160;II L.P.,
    ECP II Management L.P., ECP II Management, LLC and ECP II
    Interfund L.P., Scott B. Ungerer, William G.&#160;Kingsley,
    Robert E. Keith and Mark J. DeNino share voting and investment
    power over the shares listed above. Beneficial ownership
    includes 315,441&#160;shares and warrants to acquire
    16,010&#160;shares at $7.92 per share held by EnerTech Capital
    Partners&#160;II L.P. and 12,032&#160;shares and warrants to
    acquire 611&#160;shares at $7.92 per share held by ECP II
    Interfund L.P.</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="right" valign="top">
    (9) </TD>
    <TD></TD>
    <TD valign="bottom">
    As reflected in the Schedule&#160;13G filed on February&#160;4,
    2011 by Allen&#160;&#038; Company LLC, beneficial ownership
    includes 111,110&#160;shares and warrants to acquire
    166,666&#160;shares at $7.92 per share.</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="right" valign="top">
    (10) </TD>
    <TD></TD>
    <TD valign="bottom">
    For Mr.&#160;Call, includes warrants to acquire 137&#160;shares
    at $7.92 per share and 62,480&#160;shares subject to options
    exercisable within 60&#160;days.</TD>
</TR>

</TABLE>
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    26
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<DIV style="margin-top: 3pt; font-size: 1pt">&nbsp;</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="96%"></TD>
</TR>

<TR>
    <TD align="right" valign="top">
    (11) </TD>
    <TD></TD>
    <TD valign="bottom">
    For Mr.&#160;Cherry, includes warrants to acquire
    9,380&#160;shares at $7.92 per share and 2,917&#160;shares
    subject to options exercisable within 60&#160;days.</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="right" valign="top">
    (12) </TD>
    <TD></TD>
    <TD valign="bottom">
    For Mr.&#160;Ellis, reflects 2,917&#160;shares subject to
    options exercisable within 60&#160;days. Mr.&#160;Ellis
    disclaims beneficial ownership of shares beneficially owned by
    RockPort Capital Partners except to the extent of his pecuniary
    interest in such shares.</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="right" valign="top">
    (13) </TD>
    <TD></TD>
    <TD valign="bottom">
    For Dr.&#160;Engles, includes warrants to acquire
    10,825&#160;shares at $7.92 per share and 2,917&#160;shares
    subject to options exercisable within 60&#160;days.</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="right" valign="top">
    (14) </TD>
    <TD></TD>
    <TD valign="bottom">
    For Mr.&#160;Gray, includes warrants to acquire
    13,457&#160;shares at $7.92 per share and 14,830&#160;shares
    subject to options exercisable within 60&#160;days.</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="right" valign="top">
    (15) </TD>
    <TD></TD>
    <TD valign="bottom">
    For Mr.&#160;Park, includes 32,414&#160;shares and warrants to
    acquire 62,191&#160;shares at a weighted average price of $53.98
    per share, which are held by Innovator Capital Limited.
    Mr.&#160;Park is a principal of Innovator Capital Limited and
    may be deemed to beneficially own shares held by Innovator
    Capital Limited. Also includes 2,917&#160;shares subject to
    options exercisable within 60&#160;days.</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="right" valign="top">
    (16) </TD>
    <TD></TD>
    <TD valign="bottom">
    For Mr.&#160;Rogers, includes 11,720&#160;shares subject to
    options exercisable within 60&#160;days.</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="right" valign="top">
    (17) </TD>
    <TD></TD>
    <TD valign="bottom">
    For Mr.&#160;Asmussen, reflects 1,389&#160;shares subject to
    options exercisable within 60&#160;days.</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="right" valign="top">
    (18) </TD>
    <TD></TD>
    <TD valign="bottom">
    For Mr.&#160;Grinnell, includes 9,330&#160;shares subject to
    options exercisable within 60&#160;days.</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="right" valign="top">
    (19) </TD>
    <TD></TD>
    <TD valign="bottom">
    For Dr.&#160;Skelton, includes 8,022&#160;shares subject to
    options exercisable within 60&#160;days.</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="right" valign="top">
    (20) </TD>
    <TD></TD>
    <TD valign="bottom">
    For Dr.&#160;Golden, includes warrants to acquire
    8,327&#160;shares at $7.92 per share and 8,000&#160;shares
    subject to options exercisable within 60&#160;days.</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="right" valign="top">
    (21) </TD>
    <TD></TD>
    <TD valign="bottom">
    For Mr.&#160;Harris, reflects 6,250&#160;shares subject to
    options exercisable within 60&#160;days.</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="right" valign="top">
    (22) </TD>
    <TD></TD>
    <TD valign="bottom">
    For Mr.&#160;Mehta, reflects 9,500&#160;shares subject to
    options exercisable within 60&#160;days.</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="right" valign="top">
    (23) </TD>
    <TD></TD>
    <TD valign="bottom">
    For Mr.&#160;Shea, reflects 2,500&#160;shares subject to options
    exercisable within 60&#160;days.</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="right" valign="top">
    (24) </TD>
    <TD></TD>
    <TD valign="bottom">
    Includes warrants to acquire 104,317&#160;shares and
    134,970&#160;shares issuable upon exercise of stock options.</TD>
</TR>

</TABLE>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">Selling
    Stockholder Information</FONT></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    The selling stockholders, RockPort Capital Partners, L.P. and RP
    Co-Investment Fund&#160;I, L.P., are parties to that certain
    Registration Rights Agreement dated October&#160;15, 2010, as
    amended, which is filed as an Exhibit to the registration
    statement of which this prospectus forms a part. The selling
    stockholders have waived certain of their rights under the
    Registration Rights Agreement, including their right to require
    that the number of shares being sold by the selling stockholders
    in this offering is not less than 20% of the aggregate number of
    shares of common stock offered hereby. The selling stockholders
    have agreed to limit their participation in this offering to an
    amount determined by the Company in its sole discretion.
</DIV>
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    27
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<A name='V59644109'>
<DIV style="margin-top: 18pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">MATERIAL
    U.S. FEDERAL INCOME TAX CONSEQUENCES TO
    <FONT style="white-space: nowrap">NON-U.S.</FONT>
    HOLDERS</FONT></B>
</DIV>
</A>
<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    The following is a summary of material U.S.&#160;federal income
    tax consequences to
    <FONT style="white-space: nowrap">non-U.S.&#160;holders</FONT>
    (as defined below) of the acquisition, ownership and disposition
    of our common stock issued pursuant to this offering. This
    discussion is based on the Internal Revenue Code of 1986, as
    amended, or the Code, Treasury Regulations promulgated
    thereunder, judicial decisions and published rulings and
    administrative pronouncements of the Internal Revenue Service,
    or IRS, all as in effect as of the date of this prospectus.
    These authorities may change, possibly retroactively, resulting
    in U.S.&#160;federal income tax consequences different from
    those discussed below. This discussion is not a complete
    analysis of all of the potential U.S.&#160;federal income tax
    consequences relating thereto, nor does it address any estate
    and gift tax consequences or any tax consequences arising under
    any state, local or foreign tax laws or any other
    U.S.&#160;federal tax laws. No ruling has been or will be sought
    from the IRS with respect to the matters discussed below, and
    there can be no assurance that the IRS will not take a contrary
    position regarding the tax consequences of the acquisition,
    ownership or disposition of our common stock by a
    <FONT style="white-space: nowrap">non-U.S.&#160;holder,</FONT>
    or that any such contrary position would not be sustained by a
    court.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    This discussion is limited to
    <FONT style="white-space: nowrap">non-U.S.&#160;holders</FONT>
    who purchase our common stock issued pursuant to this offering
    and who hold our common stock as a &#147;capital asset&#148;
    within the meaning of Section&#160;1221 of the Code (property
    held for investment). This discussion does not address all of
    the U.S.&#160;federal income tax consequences that may be
    relevant to a particular holder in light of such holder&#146;s
    particular circumstances. This discussion also does not consider
    any specific facts or circumstances that may be relevant to
    holders subject to special rules under the U.S.&#160;federal
    income tax laws, including, without limitation:
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0">

<TR>
    <TD width="4%"></TD>
    <TD width="2%"></TD>
    <TD width="94%"></TD>
</TR>

<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    U.S.&#160;expatriates or former long-term residents of the
    United States;
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    partnerships or other pass-through entities classified as a
    partnership for U.S.&#160;federal income tax purposes;
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    real estate investment trusts;
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    regulated investment companies;
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    &#147;controlled foreign corporations,&#148; &#147;passive
    foreign investment companies&#148; or corporations that
    accumulate earnings to avoid U.S.&#160;federal income tax;
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    banks, insurance companies or other financial institutions;
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    brokers, dealers or traders in securities, commodities or
    currencies;
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    tax-exempt organizations;
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    tax-qualified retirement plans;
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    persons subject to the alternative minimum tax;&#160;or
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    persons holding our common stock as part of a hedging or
    conversion transaction, straddle or a constructive sale or other
    risk-reduction strategy.
</TD>
</TR>

</TABLE>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B>PROSPECTIVE INVESTORS ARE URGED TO CONSULT THEIR TAX ADVISORS
    REGARDING THE PARTICULAR U.S.&#160;FEDERAL INCOME AND ESTATE TAX
    CONSEQUENCES TO THEM OF ACQUIRING, OWNING AND DISPOSING OF OUR
    COMMON STOCK, AS WELL AS ANY TAX CONSEQUENCES ARISING UNDER ANY
    STATE, LOCAL OR FOREIGN TAX LAWS AND ANY OTHER U.S.&#160;FEDERAL
    TAX LAWS AND TAX TREATIES.</B>
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">Definition
    of <FONT style="white-space: nowrap">Non-U.S.</FONT>
    Holder</FONT></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    For purposes of this discussion, a
    <FONT style="white-space: nowrap">non-U.S.&#160;holder</FONT>
    is any beneficial owner of our common stock that is neither a
    &#147;U.S.&#160;person&#148; nor a partnership (or other entity
    treated as a partnership) for U.S.&#160;federal income tax
    purposes. A U.S.&#160;person is any of the following:
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0">

<TR>
    <TD width="4%"></TD>
    <TD width="2%"></TD>
    <TD width="94%"></TD>
</TR>

<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    an individual citizen or resident of the United States;
</TD>
</TR>

</TABLE>
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    28
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0">

<TR>
    <TD width="4%"></TD>
    <TD width="2%"></TD>
    <TD width="94%"></TD>
</TR>

<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    a corporation (or other entity treated as a corporation for
    U.S.&#160;federal income tax purposes) created or organized
    under the laws of the United States, any state therein or the
    District of Columbia;
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    an estate the income of which is subject to U.S.&#160;federal
    income tax regardless of its source;&#160;or
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    a trust (1)&#160;the administration of which is subject to the
    primary supervision of a U.S.&#160;court and all substantial
    decisions of which are controlled by one or more
    U.S.&#160;persons or (2)&#160;that has a valid election in
    effect under applicable Treasury Regulations to be treated as a
    U.S.&#160;person.
</TD>
</TR>

</TABLE>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    A partnership for U.S.&#160;federal income tax purposes is not
    subject to income tax on income derived from holding our common
    stock. A partner of the partnership who is a
    <FONT style="white-space: nowrap">non-U.S.&#160;Holder</FONT>
    may be subject to U.S.&#160;federal income tax on such income
    under rules similar to the rules for
    <FONT style="white-space: nowrap">non-U.S.&#160;Holders</FONT>
    discussed herein depending on whether the partnership is or is
    not engaged in a U.S.&#160;trade or business to which income or
    gain from our common stock is effectively connected.
    <FONT style="white-space: nowrap">Non-U.S.&#160;holders</FONT>
    who are partners of a partnership acquiring our common stock,
    should consult their tax advisors about the U.S.&#160;federal
    income tax consequences of holding and disposing of our common
    stock.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">Distributions
    on Our Common Stock</FONT></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    If we make cash or other property distributions on our common
    stock, such distributions will constitute dividends for
    U.S.&#160;federal income tax purposes to the extent paid from
    our current or accumulated earnings and profits, as determined
    under U.S.&#160;federal income tax principles. Amounts not
    treated as dividends for U.S.&#160;federal income tax purposes
    will constitute a return of capital and will first be applied
    against and reduce a holder&#146;s adjusted tax basis in the
    common stock, but not below zero. Distributions in excess of our
    current and accumulated earnings and profits and in excess of a
    <FONT style="white-space: nowrap">non-U.S.&#160;holder&#146;s</FONT>
    tax basis in its shares will be treated as gain realized on the
    sale or other disposition of the common stock and will be
    treated as described under &#147;&#151;&#160;Gain on Disposition
    of Our Common Stock&#148; below.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Dividends paid to a
    <FONT style="white-space: nowrap">non-U.S.&#160;holder</FONT>
    of our common stock that are not effectively connected with a
    U.S.&#160;trade or business conducted by such holder will be
    subject to U.S.&#160;federal withholding tax at a rate of 30% of
    the gross amount of the dividends, or such lower rate specified
    by an applicable income tax treaty. To receive the benefit of a
    reduced treaty rate, a
    <FONT style="white-space: nowrap">non-U.S.&#160;holder</FONT>
    must furnish to us or our paying agent a valid IRS
    <FONT style="white-space: nowrap">Form&#160;W-8BEN</FONT>
    (or applicable successor form) certifying such holder&#146;s
    qualification for the reduced rate. This certification must be
    provided to us or our paying agent prior to the payment of
    dividends and must be updated periodically. If the
    <FONT style="white-space: nowrap">non-U.S.&#160;holder</FONT>
    holds the stock through a financial institution or other agent
    acting on the
    <FONT style="white-space: nowrap">non-U.S.&#160;holder&#146;s</FONT>
    behalf, the
    <FONT style="white-space: nowrap">non-U.S.&#160;holder</FONT>
    will be required to provide appropriate documentation to the
    agent, who then will be required to provide certification to us
    or our paying agent, either directly or through other
    intermediaries.
    <FONT style="white-space: nowrap">Non-U.S.&#160;holders</FONT>
    that do not timely provide us or our paying agent with the
    required certification, but who qualify for a reduced treaty
    rate, may obtain a refund of any excess amounts withheld by
    timely filing an appropriate claim for refund with the IRS.
    <FONT style="white-space: nowrap">Non-U.S.&#160;holders</FONT>
    should consult their tax advisors regarding possible entitlement
    to benefits under a tax treaty. If a
    <FONT style="white-space: nowrap">non-U.S.&#160;holder</FONT>
    holds our common stock in connection with such holder&#146;s
    conduct of a trade or business in the United States, and
    dividends paid on the common stock are effectively connected
    with such holder&#146;s U.S.&#160;trade or business, and, if
    required by an applicable income tax treaty, attributable to a
    permanent establishment maintained by the
    <FONT style="white-space: nowrap">non-U.S.&#160;holder</FONT>
    in the U.S., the
    <FONT style="white-space: nowrap">non-U.S.&#160;holder</FONT>
    will be exempt from U.S.&#160;federal withholding tax. To claim
    the exemption, the
    <FONT style="white-space: nowrap">non-U.S.&#160;holder</FONT>
    must furnish to us or our paying agent a properly executed IRS
    <FONT style="white-space: nowrap">Form&#160;W-8ECI</FONT>
    (or applicable successor form), certifying that the dividends
    are effectively connected with the
    <FONT style="white-space: nowrap">non-U.S.&#160;holder&#146;s</FONT>
    conduct of a trade or business within the United States.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Any dividends paid on our common stock that are effectively
    connected with a
    <FONT style="white-space: nowrap">non-U.S.&#160;holder&#146;s</FONT>
    U.S.&#160;trade or business (and, if required by an applicable
    income tax treaty, attributable to a permanent establishment
    maintained by the
    <FONT style="white-space: nowrap">non-U.S.&#160;holder</FONT>
    in the United States) will be subject to U.S.&#160;federal
    income tax on a net income basis at the regular graduated
    U.S.&#160;federal income tax rates in the same manner as if such
    holder were a resident of the United&#160;States, unless an
    applicable income tax treaty provides otherwise. A
    <FONT style="white-space: nowrap">non-U.S.&#160;holder</FONT>
    that is a foreign corporation also may be subject to a branch
    profits tax equal to 30% (or such lower rate specified by an
    applicable income tax treaty) of a portion of its effectively
    connected earnings and profits for the taxable year, as adjusted
    for certain items.
</DIV>
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    29
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <FONT style="white-space: nowrap">Non-U.S.&#160;holders</FONT>
    should consult their tax advisors regarding their entitlement to
    benefits under a relevant income tax treaty.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">Gain on
    Disposition of Our Common Stock</FONT></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Subject to the discussion below regarding backup withholding, a
    <FONT style="white-space: nowrap">non-U.S.&#160;holder</FONT>
    generally will not be subject to U.S.&#160;federal income tax on
    any gain realized upon the sale or other disposition of our
    common stock unless:
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0">

<TR>
    <TD width="4%"></TD>
    <TD width="2%"></TD>
    <TD width="94%"></TD>
</TR>

<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    the gain is effectively connected with the
    <FONT style="white-space: nowrap">non-U.S.&#160;holder&#146;s</FONT>
    conduct of a trade or business in the United&#160;States, and if
    required by an applicable income tax treaty, attributable to a
    permanent establishment maintained by the
    <FONT style="white-space: nowrap">non-U.S.&#160;holder</FONT>
    in the United States;
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    the
    <FONT style="white-space: nowrap">non-U.S.&#160;holder</FONT>
    is a nonresident alien individual present in the United States
    for 183&#160;days or more during the taxable year of the sale or
    disposition, and certain other requirements are met;&#160;or
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    our common stock constitutes a &#147;United States real property
    interest&#148; by reason of our status as a United&#160;States
    real property holding corporation, or USRPHC, for
    U.S.&#160;federal income tax purposes during the relevant
    statutory period.
</TD>
</TR>

</TABLE>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Unless an applicable income tax treaty provides otherwise, gain
    described in the first bullet point above will be subject to
    U.S.&#160;federal income tax on a net income basis at the
    regular graduated U.S.&#160;federal income tax rates in the same
    manner as if such holder were a resident of the United States.
    Further,
    <FONT style="white-space: nowrap">non-U.S.&#160;holders</FONT>
    that are foreign corporations also may be subject to a branch
    profits tax equal to 30% (or such lower rate specified by an
    applicable income tax treaty) of a portion of their effectively
    connected earnings and profits for the taxable year, as adjusted
    for certain items.
    <FONT style="white-space: nowrap">Non-U.S.&#160;holders</FONT>
    are urged to consult their tax advisors regarding any applicable
    income tax treaties that may provide for different rules.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    A gain described in the second bullet point above will be
    subject to U.S.&#160;federal income tax at a flat 30% rate (or
    such lower rate specified by an applicable income tax treaty),
    but may be offset by U.S.&#160;source capital losses (even
    though the individual is not considered a resident of the United
    States), provided the
    <FONT style="white-space: nowrap">non-U.S.&#160;holder</FONT>
    has timely filed U.S.&#160;federal income tax returns with
    respect to such losses.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    With respect to the third bullet point above, we believe we are
    not currently and do not anticipate becoming a USRPHC for
    U.S.&#160;federal income tax purposes. However, because the
    determination of whether we are a USRPHC depends on the fair
    market value of our U.S.&#160;real property interests relative
    to the fair market value of our other trade or business assets
    and our
    <FONT style="white-space: nowrap">non-U.S.&#160;real</FONT>
    property interests, there can be no assurance that we are not a
    USRPHC or will not become one in the future. Even if we are or
    were to become a USRPHC, a gain arising from the sale or other
    taxable disposition by a
    <FONT style="white-space: nowrap">non-U.S.&#160;holder</FONT>
    of our common stock will not be subject to tax if such class of
    stock is &#147;regularly traded,&#148; as defined by applicable
    Treasury Regulations, on an established securities market, and
    such
    <FONT style="white-space: nowrap">non-U.S.&#160;holder</FONT>
    owned, actually or constructively, 5% or less of such class of
    our stock throughout the shorter of the five-year period ending
    on the date of the sale or other taxable disposition of the
    stock or the
    <FONT style="white-space: nowrap">non-U.S.&#160;holder&#146;s</FONT>
    holding period for such stock. We expect our common stock to be
    &#147;regularly traded&#148; on an established securities
    market, although we cannot guarantee it will be so traded. If a
    gain on the sale or other taxable disposition of our stock were
    subject to taxation under the third bullet point above, the
    <FONT style="white-space: nowrap">non-U.S.&#160;holder</FONT>
    would be subject to U.S.&#160;federal income tax with respect to
    such gain in the same manner as a U.S.&#160;person (subject to
    any applicable alternative minimum tax and a special alternative
    minimum tax in the case of nonresident alien individuals).
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">Information
    Reporting and Backup Withholding</FONT></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    We must report annually to the IRS and to each
    <FONT style="white-space: nowrap">non-U.S.&#160;holder</FONT>
    the amount of distributions on our common stock paid to such
    holder and the amount of any tax withheld with respect to those
    distributions. These information reporting requirements apply
    even if no withholding was required because the distributions
    were effectively connected with the holder&#146;s conduct of a
    U.S.&#160;trade or business, or if withholding was reduced or
    eliminated by an applicable income tax treaty. This information
    also may be made available under a specific treaty or agreement
    with the tax authorities in the country in which the
    <FONT style="white-space: nowrap">non-U.S.&#160;holder</FONT>
    resides or is established. Backup withholding, currently at a
    28% rate, will not apply to distribution payments to a
    <FONT style="white-space: nowrap">non-U.S.&#160;holder</FONT>
    of our common stock provided the
    <FONT style="white-space: nowrap">non-U.S.&#160;holder</FONT>
    furnishes to us or our paying agent the required certification
    as to its
    <FONT style="white-space: nowrap">non-U.S.&#160;status,</FONT>
    by
</DIV>
<!-- XBRL Paragraph Pagebreak -->
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    30
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    providing a valid IRS
    <FONT style="white-space: nowrap">Form&#160;W-8BEN</FONT>
    or IRS
    <FONT style="white-space: nowrap">Form&#160;W-8ECI,</FONT>
    as applicable, and satisfying certain other requirements.
    Notwithstanding the foregoing, backup withholding may apply if
    either we have or our paying agent has actual knowledge, or
    reason to know, that the holder is a U.S.&#160;person that is
    not an exempt recipient.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Unless a
    <FONT style="white-space: nowrap">non-U.S.&#160;holder</FONT>
    complies with certification procedures to establish that it is
    not a U.S.&#160;person, information returns may be filed with
    the IRS in connection with, and the
    <FONT style="white-space: nowrap">non-U.S.&#160;holder</FONT>
    may be subject to backup withholding on the proceeds from, a
    sale or other disposition of our common stock. The certification
    procedures described in the above paragraph will satisfy these
    certification requirements as well. Backup withholding is not an
    additional tax. Any amounts withheld under the backup
    withholding rules may be allowed as a refund or a credit against
    a
    <FONT style="white-space: nowrap">non-U.S.&#160;holder&#146;s</FONT>
    U.S.&#160;federal income tax liability, provided the required
    information is timely furnished to the IRS. Backup withholding
    and information reporting rules are complex.
    <FONT style="white-space: nowrap">Non-U.S.&#160;holders</FONT>
    are urged to consult their tax advisors regarding the
    application of these rules to them.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">New
    Legislation Relating to Foreign Accounts</FONT></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Newly enacted legislation may impose withholding taxes on
    certain types of payments made to &#147;foreign financial
    institutions&#148; (as specially defined under these rules) and
    certain other
    <FONT style="white-space: nowrap">non-U.S.&#160;entities.</FONT>
    Under this legislation, the failure to comply with additional
    certification, information reporting and other specified
    requirements could result in withholding tax being imposed on
    payments of dividends and sales proceeds to foreign
    intermediaries and certain
    <FONT style="white-space: nowrap">non-U.S.&#160;holders.</FONT>
    The legislation imposes a 30% withholding tax on dividends on,
    or gross proceeds from the sale or other disposition of, our
    common stock paid to a foreign financial institution or to a
    foreign non-financial entity, unless (i)&#160;the foreign
    financial institution undertakes certain diligence and reporting
    obligations or (ii)&#160;the foreign non-financial entity either
    certifies it does not have any substantial U.S.&#160;owners or
    furnishes identifying information regarding each substantial
    U.S.&#160;owner. If the payee is a foreign financial
    institution, it must enter into an agreement with the
    U.S.&#160;Treasury requiring, among other things, that it
    undertake to identify accounts held by certain U.S.&#160;persons
    or
    <FONT style="white-space: nowrap">U.S.-owned</FONT>
    foreign entities, annually report certain information about such
    accounts, and withhold 30% on payments to account holders whose
    actions prevent it from complying with these reporting and other
    requirements. The legislation would apply to payments made after
    December&#160;31, 2012. Prospective investors should consult
    their tax advisors regarding this legislation.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B>The foregoing discussion of U.S.&#160;federal income tax
    considerations is for general information purposes only and is
    not tax or legal advice. Accordingly, you should consult your
    own tax advisor as to the particular tax consequences to you of
    purchasing, owning and disposing of our common stock, including
    the applicability and effect of any U.S.&#160;federal, state or
    local or
    <FONT style="white-space: nowrap">non-U.S.&#160;tax</FONT>
    laws, and of any changes or proposed changes in applicable
    law.</B>
</DIV>
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    31
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<A name='V59644110'>
<DIV style="margin-top: 18pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">UNDERWRITING</FONT></B>
</DIV>
</A>
<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Subject to the terms and conditions in the underwriting
    agreement,
    dated&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;,
    2011, by and between us, the selling stockholders and Roth
    Capital Partners, LLC, or Roth, the underwriter, has agreed to
    purchase from us, and we have agreed to sell, on a firm
    commitment
    basis,&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;shares
    of our common stock, at the public offering price, less the
    underwriting discount set forth on the cover page of this
    prospectus, and the underwriter, has agreed to purchase from the
    selling stockholders and the selling stockholders have agreed to
    sell, on a firm commitment
    basis,&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;
    shares of common stock, at the public offering price, less the
    underwriting discount set forth on the cover page of this
    prospectus.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    The underwriting agreement provides that the obligation of the
    underwriter to purchase all of the shares being offered to the
    public is subject to certain conditions and the underwriter is
    obligated to purchase all of the shares of common stock offered
    hereby if any of the shares are purchased.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Pursuant to the underwriting agreement, we have agreed to
    indemnify the underwriter against certain liabilities, including
    liabilities under the Securities Act, or to contribute to
    payments which the underwriter or other indemnified parties may
    be required to make in respect of any such liabilities.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">Commissions
    and Expenses</FONT></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    The following table provides information regarding the amount of
    the underwriting discounts and commissions to be paid to the
    underwriter by us and the selling stockholders, as the case may
    be. These amounts are shown assuming both no exercise and full
    exercise of the underwriter&#146;s option to purchase additional
    shares to cover over-allotments, if any.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE border="0" width="100%" align="center" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
<!-- Table Width Row BEGIN -->
<TR style="font-size: 1pt" valign="bottom">
    <TD width="58%">&nbsp;</TD>	<!-- colindex=01 type=maindata -->
    <TD width="2%">&nbsp;</TD>	<!-- colindex=02 type=gutter -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=02 type=lead -->
    <TD width="6%" align="right">&nbsp;</TD>	<!-- colindex=02 type=body -->
    <TD width="1%" align="left">&nbsp;</TD>	<!-- colindex=02 type=hang1 -->
    <TD width="3%">&nbsp;</TD>	<!-- colindex=03 type=gutter -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=03 type=lead -->
    <TD width="11%" align="right">&nbsp;</TD>	<!-- colindex=03 type=body -->
    <TD width="1%" align="left">&nbsp;</TD>	<!-- colindex=03 type=hang1 -->
    <TD width="3%">&nbsp;</TD>	<!-- colindex=04 type=gutter -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=04 type=lead -->
    <TD width="11%" align="right">&nbsp;</TD>	<!-- colindex=04 type=body -->
    <TD width="1%" align="left">&nbsp;</TD>	<!-- colindex=04 type=hang1 -->
</TR>
<!-- Table Width Row END -->
<!-- TableOutputHead -->
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD nowrap align="center" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="6" align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>Total</B>
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD nowrap align="center" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom">
    <B>Without<BR>
    </B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom">
    <B>With<BR>
    </B>
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD nowrap align="center" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>Per Share</B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>Over-Allotment</B>
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="2" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>Over-Allotment</B>
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR style="line-height: 3pt; font-size: 1pt">
<TD>&nbsp;
</TD>
</TR>
<!-- TableOutputBody -->
<TR valign="bottom" style="background: #CCEEFF">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Underwriting discount
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    &#160;&#160;&#160;&#160;&#160;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    &#160;&#160;&#160;&#160;&#160;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    &#160;&#160;&#160;&#160;&#160;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Proceeds, before expenses, to us(1)
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Proceeds to the selling stockholders
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">

</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
</TABLE>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV style="font-size: 1pt; margin-left: 0%; width: 13%;  align: left; border-bottom: 1pt solid #000000"></DIV>

<DIV style="margin-top: 3pt; font-size: 1pt">&nbsp;</DIV>



<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

<TR>
    <TD width="2%"></TD>
    <TD width="1%"></TD>
    <TD width="97%"></TD>
</TR>

<TR>
    <TD align="right" valign="top">
    (1) </TD>
    <TD></TD>
    <TD valign="bottom">
    Includes payment to Roth of non-accountable expenses incurred in
    connection with this offering in an amount equal
    to&#160;&#160;&#160;&#160;&#160;% of the gross proceeds of the
    offering.</TD>
</TR>

</TABLE>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    In addition, we have agreed to reimburse the underwriter for
    certain
    <FONT style="white-space: nowrap">out-of-pocket</FONT>
    expenses incurred by it up to an aggregate of $25,000 with
    respect to this offering, even in the event the offering is not
    consummated.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    We and the selling stockholders have agreed to sell the shares
    at the offering price less the underwriting discount set forth
    on the cover page of this prospectus. Neither we nor the selling
    stockholders can be sure that the offering price will correspond
    to the price at which our common stock will trade following this
    offering.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    At the closing of this offering, the underwriter will receive
    warrants to purchase a number of shares of our common stock
    equal to 2.0% of the shares of common stock issued in the
    offering. The warrants will have a term of five years, have an
    exercise price equal to 120% of the public offering price of the
    common stock and, in accordance with FINRA Rule&#160;5110(g)(1),
    may not be sold, transferred, assigned, pledged or hypothecated,
    or be the subject of any hedging, short sale, derivative, put or
    call transaction that would result in the effective economic
    disposition of such warrant by any person for a period of
    180&#160;days immediately following the effective date of the
    registration statement, except as provided in FINRA
    Rule&#160;5110(g)(2).
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">Over-Allotment
    Option</FONT></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    We have granted the underwriter an over-allotment option. This
    option, which is exercisable for up to 30&#160;days after the
    date of this prospectus, permits the underwriter to purchase a
    maximum
    of&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;
    additional shares from us to cover over-allotments, if any. If
    the underwriter exercises all or part of this option, it will
    purchase shares covered by the option at the public offering
    price that appears on the cover page of this prospectus, less
    the underwriting discount and non-accountable expense
    reimbursement of&#160;&#160;&#160;&#160;&#160;% of the gross
    proceeds from the sale of such additional securities.
</DIV>
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    32
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<DIV align="left" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times"><FONT style="white-space: nowrap">Lock-Up</FONT>
    Agreements</FONT></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Our executive officers, directors and the selling stockholders
    have agreed to a
    <FONT style="white-space: nowrap">90-day</FONT>
    <FONT style="white-space: nowrap">&#147;lock-up&#148;</FONT>
    from the date of this prospectus relating to shares of our
    common stock that they beneficially own, including the issuance
    of common stock upon the exercise of currently outstanding
    options and options which may be issued. This means that, for a
    period of 90&#160;days following the date of this prospectus,
    such persons may not offer, sell, pledge or otherwise dispose of
    these securities without the prior written consent of the
    underwriter, subject to certain exceptions. The
    <FONT style="white-space: nowrap">lock-up</FONT>
    period described in the preceding sentence will be extended if
    (1)&#160;during the last 17&#160;days of the
    <FONT style="white-space: nowrap">lock-up</FONT>
    period, we issue an earnings release or material news or a
    material event relating to us occurs, or (2)&#160;prior to the
    expiration of the initial
    <FONT style="white-space: nowrap">lock-up</FONT>
    period, we announce that we will release earnings results during
    the <FONT style="white-space: nowrap">16-day</FONT>
    period following the last day of the initial
    <FONT style="white-space: nowrap">lock-up</FONT>
    period, in which case the
    <FONT style="white-space: nowrap">lock-up</FONT>
    period automatically will be extended until the expiration of
    the <FONT style="white-space: nowrap">18-day</FONT>
    period beginning on the issuance of the earnings release or the
    occurrence of the material news or material event, as
    applicable, unless the underwriter waives, in writing, such
    extension.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    In addition, the underwriting agreement provides that we will
    not, for a period of 90&#160;days following the date of this
    prospectus, offer, sell or distribute any of our securities,
    without the prior written consent of the underwriter.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">Stabilization</FONT></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Until the distribution of the securities offered by this
    prospectus is completed, rules of the SEC may limit the ability
    of the underwriter to bid for and to purchase our common stock.
    As an exception to these rules, the underwriter may engage in
    transactions effected in accordance with Regulation&#160;M under
    the Exchange Act that are intended to stabilize, maintain or
    otherwise affect the price of our common stock. The underwriter
    may engage in over-allotment sales, syndicate covering
    transactions, stabilizing transactions and penalty bids in
    accordance with Regulation&#160;M.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0">

<TR>
    <TD width="4%"></TD>
    <TD width="2%"></TD>
    <TD width="94%"></TD>
</TR>

<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    Stabilizing transactions permit bids or purchases for the
    purpose of pegging, fixing or maintaining the price of the
    common stock, so long as stabilizing bids do not exceed a
    specified maximum.
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    Over-allotment involves sales by the underwriter of securities
    in excess of the number of securities the underwriter is
    obligated to purchase, which creates a short position. The short
    position may be either a covered short position or a naked short
    position. In a covered short position, the number of shares of
    common stock over-allotted by the underwriter is not greater
    than the number of shares of common stock that it may purchase
    in the over-allotment option. In a naked short position, the
    number of shares of common stock involved is greater than the
    number of shares in the over-allotment option. The underwriter
    may close out any covered short position by either exercising
    its over-allotment option or purchasing shares of our common
    stock in the open market.
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    Covering transactions involve the purchase of securities in the
    open market after the distribution has been completed in order
    to cover short positions. In determining the source of
    securities to close out the short position, the underwriter will
    consider, among other things, the price of securities available
    for purchase in the open market as compared to the price at
    which it may purchase securities through the over-allotment
    option. If the underwriter sells more shares of common stock
    than could be covered by the over-allotment option, creating a
    naked short position, the position can only be closed out by
    buying securities in the open market. A naked short position is
    more likely to be created if the underwriter is concerned that
    there could be downward pressure on the price of the securities
    in the open market after pricing that could adversely affect
    investors who purchase in this offering.
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    Penalty bids permit the underwriter to reclaim a selling
    concession from a selected dealer when the securities originally
    sold by the selected dealer are purchased in a stabilizing or
    syndicate covering transaction.
</TD>
</TR>

</TABLE>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    These stabilizing transactions, covering transactions and
    penalty bids may have the effect of raising or maintaining the
    market price of our securities or preventing or retarding a
    decline in the market price of our common stock. As a result,
    the price of our securities may be higher than the price that
    might otherwise exist in the open market.
</DIV>
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    33
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Neither we nor the underwriter make any representation or
    prediction as to the effect that the transactions described
    above may have on the prices of our securities. These
    transactions may occur on any trading market. If any of these
    transactions are commenced, they may be discontinued without
    notice at any time.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    This prospectus may be made available in electronic format on
    Internet sites or through other online services maintained by
    the underwriter or its affiliates. In those cases, prospective
    investors may view offering terms online and may be allowed to
    place orders online. Other than this prospectus in electronic
    format, any information on the underwriter&#146;s or its
    affiliates&#146; websites and any information contained in any
    other website maintained by the underwriter or any affiliate of
    the underwriter is not part of this prospectus or the
    registration statement of which this prospectus forms a part,
    has not been approved
    <FONT style="white-space: nowrap">and/or</FONT>
    endorsed by us or the underwriter and should not be relied upon
    by investors.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    The underwriter or its affiliates may engage in transactions
    with, and may perform, from time to time, investment banking and
    advisory services for us in the ordinary course of their
    business and for which they would receive customary fees and
    expenses. In addition, in the ordinary course of their business
    activities, the underwriter and its affiliates may make or hold
    a broad array of investments and actively trade debt and equity
    securities (or related derivative securities) and financial
    instruments (including bank loans) for their own account and for
    the accounts of their customers. Such investments and securities
    activities may involve securities
    <FONT style="white-space: nowrap">and/or</FONT>
    instruments of ours or our affiliates. The underwriter and its
    affiliates may also make investment recommendations
    <FONT style="white-space: nowrap">and/or</FONT>
    publish or express independent research views in respect of such
    securities or financial instruments and may hold, or recommend
    to clients that they acquire, long
    <FONT style="white-space: nowrap">and/or</FONT> short
    positions in such securities and instruments.
</DIV>
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    34
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<A name='V59644111'>
<DIV style="margin-top: 18pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">MARKET
    PRICE AND OTHER SHAREHOLDER INFORMATION</FONT></B>
</DIV>
</A>
<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">Market
    Information</FONT></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Our common stock is traded on the NASDAQ Capital Market under
    the symbol &#147;CDTI.&#148; For a twenty-trading day period
    immediately following the Merger and the
    <FONT style="white-space: nowrap">one-for-six</FONT>
    reverse stock split, both of which took effect October&#160;15,
    2010, it temporarily traded under the symbol &#147;CDTID&#148;
    in accordance with NASDAQ&#146;s rules.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    The following table sets forth the high and low trading prices
    of our common stock on the NASDAQ Capital Market for each of the
    periods listed. Prices indicated below with respect to our share
    price include inter-dealer prices, without retail mark up, mark
    down or commission and may not necessarily represent actual
    transactions. Periods prior to and including October&#160;15,
    2010 have been restated to reflect the
    <FONT style="white-space: nowrap">one-for-six</FONT>
    reverse stock split that took effect October&#160;15, 2010 after
    the end of trading.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE border="0" width="100%" align="center" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
<!-- Table Width Row BEGIN -->
<TR style="font-size: 1pt" valign="bottom">
    <TD width="79%">&nbsp;</TD>	<!-- colindex=01 type=maindata -->
    <TD width="2%">&nbsp;</TD>	<!-- colindex=02 type=gutter -->
    <TD width="2%" align="right">&nbsp;</TD>	<!-- colindex=02 type=lead -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=02 type=body -->
    <TD width="2%" align="left">&nbsp;</TD>	<!-- colindex=02 type=hang1 -->
    <TD width="9%">&nbsp;</TD>	<!-- colindex=03 type=gutter -->
    <TD width="2%" align="right">&nbsp;</TD>	<!-- colindex=03 type=lead -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=03 type=body -->
    <TD width="2%" align="left">&nbsp;</TD>	<!-- colindex=03 type=hang1 -->
</TR>
<!-- Table Width Row END -->
<!-- TableOutputHead -->
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD nowrap align="center" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="7" align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>NASDAQ Capital Market</B>
</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD nowrap align="center" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="3" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>High</B>
</TD>
<TD>
&nbsp;
</TD>
<TD colspan="3" nowrap align="center" valign="bottom" style="border-bottom: 1px solid #000000">
    <B>Low</B>
</TD>
</TR>
<TR style="line-height: 3pt; font-size: 1pt">
<TD>&nbsp;
</TD>
</TR>
<!-- TableOutputBody -->
<TR valign="bottom" style="background: #CCEEFF">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    <B><U>2009</U></B>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    1<SUP style="font-size: 85%; vertical-align: top">st</SUP>

    Quarter
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    18.30
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    6.00
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    2<SUP style="font-size: 85%; vertical-align: top">nd</SUP>

    Quarter
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    15.00
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    8.46
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    3<SUP style="font-size: 85%; vertical-align: top">rd</SUP>

    Quarter
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    13.20
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    7.50
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    4<SUP style="font-size: 85%; vertical-align: top">th</SUP>

    Quarter
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    13.38
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    8.40
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    <B><U>2010</U></B>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    1<SUP style="font-size: 85%; vertical-align: top">st</SUP>

    Quarter
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    13.32
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    8.70
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    2<SUP style="font-size: 85%; vertical-align: top">nd</SUP>

    Quarter
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    10.68
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    5.70
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    3<SUP style="font-size: 85%; vertical-align: top">rd</SUP>

    Quarter
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    8.52
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    4.08
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    4<SUP style="font-size: 85%; vertical-align: top">th</SUP>

    Quarter
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    44.38
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    3.00
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    <B><U>2011</U></B>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    1<SUP style="font-size: 85%; vertical-align: top">st</SUP>

    Quarter
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    11.69
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    5.16
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    2<SUP style="font-size: 85%; vertical-align: top">nd</SUP>

    Quarter (through June&#160;1st)
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    11.20
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    3.61
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
</TABLE>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    On June&#160;1, 2011, the last reported sale price for our
    common stock as quoted on the NASDAQ was $7.18 per share.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">Holders</FONT></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    At May&#160;27, 2011, there were 316 holders of record of our
    common stock, which excludes stockholders whose shares were held
    by brokerage firms, depositories and other institutional firms
    in &#147;street name&#148; for their customers.
</DIV>
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    35
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<A name='V59644112'>
<DIV style="margin-top: 18pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">LEGAL
    MATTERS</FONT></B>
</DIV>
</A>
<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    The validity of the securities offered by this prospectus will
    be passed upon for us by Reed Smith LLP. Latham&#160;&#038;
    Watkins LLP is representing the underwriter in connection with
    this offering.
</DIV>

<A name='V59644113'>
<DIV style="margin-top: 18pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">EXPERTS</FONT></B>
</DIV>
</A>
<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    The consolidated financial statements of Clean Diesel
    Technologies, Inc. as of December&#160;31, 2010 and 2009, and
    for the years then ended, have been incorporated by reference
    herein and in the registration statement in reliance upon the
    report of KPMG LLP, independent registered public accounting
    firm, incorporated by reference herein, and upon the authority
    of said firm as experts in accounting and auditing. The audit
    report covering the December&#160;31, 2010 consolidated
    financial statements contains an explanatory paragraph that
    states that the Company has suffered recurring losses from
    operations and has an accumulated deficit that raises
    substantial doubt about the Company&#146;s ability to continue
    as a going concern. The consolidated financial statements do not
    include any adjustments that might result from the outcome of
    that uncertainty.
</DIV>

<A name='V59644114'>
<DIV style="margin-top: 18pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">WHERE YOU
    CAN FIND MORE INFORMATION</FONT></B>
</DIV>
</A>
<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    This prospectus is part of a registration statement on
    <FONT style="white-space: nowrap">Form&#160;S-1</FONT>
    that we filed with the SEC. Certain information in the
    registration statement has been omitted from this prospectus in
    accordance with the rules of the SEC. We are a reporting company
    and file annual, quarterly and current reports, proxy statements
    and other information with the SEC. You may read and copy any
    document we file with the SEC at the SEC&#146;s Public Reference
    Room at 100&#160;F&#160;Street, N.E., Washington,&#160;D.C.
    20549. Please call the SEC at
    <FONT style="white-space: nowrap">1-800-SEC-0330</FONT>
    for more information about the operation of the Public Reference
    Room. Our SEC filings are also available at the SEC&#146;s
    website at www.sec.gov. We maintain a website at www.cdti.com
    and information regarding CSI&#146;s operations may be found at
    www.catsolns.com. Information contained in or accessible through
    either website is not and should not be considered a part of
    this prospectus and you should not rely on that information in
    deciding whether to invest in our common stock, unless that
    information is also in or incorporated by reference in this
    prospectus.
</DIV>
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    36
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<A name='V59644115'>
<DIV style="margin-top: 18pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">INCORPORATION
    OF CERTAIN INFORMATION BY REFERENCE</FONT></B>
</DIV>
</A>
<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    The SEC allows us to &#147;incorporate by reference&#148;
    information we file with it into our registration statement on
    <FONT style="white-space: nowrap">Form&#160;S-1</FONT>
    of which this prospectus is a part, which means that we can
    disclose important information to you by referring you to other
    documents. The information incorporated by reference is an
    important part of this prospectus.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    We incorporate by reference the documents listed below:
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0">

<TR>
    <TD width="4%"></TD>
    <TD width="2%"></TD>
    <TD width="94%"></TD>
</TR>

<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    our Annual Report on
    <FONT style="white-space: nowrap">Form&#160;10-K</FONT>
    for the fiscal year ended December&#160;31, 2010, filed on
    March&#160;31, 2011;
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    our Quarterly Report on
    <FONT style="white-space: nowrap">Form&#160;10-Q</FONT>
    for the quarter ended March&#160;31, 2011, filed on May&#160;13,
    2011;
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    our Current Reports on
    <FONT style="white-space: nowrap">Form&#160;8-K</FONT>
    filed with the SEC on January&#160;5, 2011, January&#160;11,
    2011, January&#160;20, 2011, February&#160;16, 2011,
    March&#160;10, 2011, March&#160;22, 2011 (both), April&#160;13,
    2011 and May&#160;9, 2011 (other than portions of those
    documents designated as &#147;furnished&#148;);
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    our Definitive Proxy Statement on Schedule&#160;14A filed with
    the SEC on April&#160;25, 2011;&#160;and
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    the description of Clean Diesel common stock contained in our
    Registration Statement on
    <FONT style="white-space: nowrap">Form&#160;8-A</FONT>
    filed on September&#160;27, 2007, as that description may be
    updated from time to time.
</TD>
</TR>

</TABLE>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    You may request a copy of these filings incorporated by
    reference in this prospectus, other than an exhibit to these
    filings unless we have specifically incorporated that exhibit by
    reference into the filing, at no cost, by writing or telephoning
    us at the following address and telephone number:
</DIV>

<DIV style="margin-top: 18pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">CLEAN
    DIESEL TECHNOLOGIES, INC.<BR>
    4567 Telephone Road, Suite&#160;206<BR>
    Ventura, California 93003<BR>
    Attention: Investor Relations<BR>
    <FONT style="white-space: nowrap">(805)&#160;639-9458</FONT></FONT></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Any statement contained in a document incorporated or deemed to
    be incorporated by reference in this prospectus will be deemed
    modified, superseded or replaced for purposes of this prospectus
    to the extent that a statement contained in this prospectus or
    in any subsequently filed document that also is or is deemed to
    be incorporated by reference in this prospectus modifies,
    supersedes or replaces such statement.
</DIV>
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    37
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<CENTER><DIV style="font-size: 1pt; width: 100%; border-bottom: 2pt solid #000000"></DIV></CENTER>

<CENTER><DIV style="font-size: 1pt; width: 100%; border-bottom: 1pt solid #000000"></DIV></CENTER>

<DIV style="margin-top: 4pt; font-size: 1pt">&nbsp;</DIV>

<DIV style="margin-top: 32pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <IMG src="v59644v5964401.gif" alt="(CLEAN DIESEL LOGO)">
</DIV>

<DIV style="margin-top: 3pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B><FONT style="font-size: 20pt">CLEAN DIESEL TECHNOLOGIES,
    INC.</FONT></B>
</DIV>

<DIV style="margin-top: 3pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B><FONT style="font-size: 14pt">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Shares
    of Common Stock</FONT></B>
</DIV>

<DIV style="margin-top: 3pt; font-size: 1pt">&nbsp;</DIV>

<CENTER><DIV style="font-size: 1pt; width: 14%; border-bottom: 1pt solid #000000"></DIV></CENTER>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B><FONT style="font-size: 12pt">PROSPECTUS</FONT></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<CENTER><DIV style="font-size: 1pt; width: 14%; border-bottom: 1pt solid #000000"></DIV></CENTER>

<DIV style="margin-top: 3pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <B><FONT style="font-size: 18pt">Roth Capital Partners</FONT></B>
</DIV>

<DIV style="margin-top: 3pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    &#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;,
    2011
</DIV>

<DIV style="margin-top: 24pt; font-size: 1pt">&nbsp;</DIV>

<DIV style="margin-top: 8pt; font-size: 1pt">&nbsp;</DIV>

<CENTER><DIV style="font-size: 1pt; width: 100%; border-bottom: 1pt solid #000000"></DIV></CENTER>

<CENTER><DIV style="font-size: 1pt; width: 100%; border-bottom: 2pt solid #000000"></DIV></CENTER>
<!-- XBRL Pagebreak Begin -->

<P align="left" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<DIV align="center" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">PART&#160;II<BR>
    </FONT></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">INFORMATION
    NOT REQUIRED IN PROSPECTUS</FONT></B>
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

<TR>
    <TD width="9%"></TD>
    <TD width="91%"></TD>
</TR>

<TR valign="top">
    <TD>
    <B><FONT style="font-family: 'Times New Roman', Times">Item&#160;13.<I>&#160;&#160;</I></FONT></B>
</TD>
    <TD>
    <B><I><FONT style="font-family: 'Times New Roman', Times">Other
    Expenses of Issuance and Distribution</FONT></I></B>
</TD>
</TR>

</TABLE>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    The following table sets forth the approximate amount of
    expenses in connection with the offering of the securities being
    registered. All of the amounts shown are estimates except the
    SEC registration fee.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE border="0" width="100%" align="center" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
<!-- Table Width Row BEGIN -->
<TR style="font-size: 1pt" valign="bottom">
    <TD width="92%">&nbsp;</TD>	<!-- colindex=01 type=maindata -->
    <TD width="2%">&nbsp;</TD>	<!-- colindex=02 type=gutter -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=02 type=lead -->
    <TD width="4%" align="right">&nbsp;</TD>	<!-- colindex=02 type=body -->
    <TD width="1%" align="left">&nbsp;</TD>	<!-- colindex=02 type=hang1 -->
</TR>
<!-- Table Width Row END -->
<!-- TableOutputHead -->
<!-- TableOutputBody -->
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Registration fee under the Securities Act of 1933, as amended
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">
    1,602
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Financial Industry Regulatory Authority fee
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Stock exchange fees
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Legal fees and expenses
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Printing and mailing fees and expenses
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Accounting fees and expenses
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Transfer agent and registrar fees
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Miscellaneous fees and expenses
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="right" valign="bottom">
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="font-size: 1pt">
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="background: #CCEEFF">
<TD nowrap align="left" valign="bottom">
<DIV style="text-indent: -10pt; margin-left: 10pt">
    Total
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="left" valign="bottom">
    $
</TD>
<TD nowrap align="right" valign="bottom">

</TD>
<TD nowrap align="left" valign="bottom">
&nbsp;
</TD>
</TR>
<TR valign="bottom" style="font-size: 1pt">
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD style="border-top: 1px solid #000000">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
</TR>
</TABLE>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

<TR>
    <TD width="9%"></TD>
    <TD width="91%"></TD>
</TR>

<TR valign="top">
    <TD>
    <B><FONT style="font-family: 'Times New Roman', Times">Item&#160;14.<I>&#160;&#160;</I></FONT></B>
</TD>
    <TD>
    <B><I><FONT style="font-family: 'Times New Roman', Times">Indemnification
    of Directors and Officers</FONT></I></B>
</TD>
</TR>

</TABLE>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Section&#160;102(b)(7) of the Delaware General Corporation Law
    (&#147;DGCL&#148;) permits a corporation, in its certificate of
    incorporation, to limit or eliminate, subject to certain
    statutory limitations, the liability of directors to the
    corporation or its stockholders for monetary damages for
    breaches of fiduciary duty, except for liability (a)&#160;for
    any breach of the director&#146;s duty of loyalty to the
    corporation or its stockholders, (b)&#160;for acts or omissions
    not in good faith or which involve intentional misconduct or a
    knowing violation of law, (c)&#160;under Section&#160;174 of the
    DGCL or (d)&#160;for any transaction from which the director
    derived an improper personal benefit.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Under Section&#160;145 of the DGCL, a corporation may indemnify
    a director, officer, employee or agent of the corporation (or a
    person who is or was serving at the request of the corporation
    as a director, officer, employee or agent of another
    corporation, partnership, joint venture, trust or other
    enterprise) against expenses (including attorneys&#146; fees),
    judgments, fines and amounts paid in settlement actually and
    reasonably incurred by the person if he acted in good faith and
    in a manner he reasonably believed to be in or not opposed to
    the best interests of the corporation and, with respect to any
    criminal action or proceeding, had no reasonable cause to
    believe his conduct was unlawful. In the case of an action
    brought by or in the right of a corporation, the corporation may
    indemnify a director, officer, employee or agent of the
    corporation (or a person who is or was serving at the request of
    the corporation as a director, officer, employee or agent of
    another corporation, partnership, joint venture, trust or other
    enterprise) against expenses (including attorneys&#146; fees)
    actually and reasonably incurred by him if he acted in good
    faith and in a manner he reasonably believed to be in or not
    opposed to the best interests of the corporation, except that no
    indemnification may be made in respect of any claim, issue or
    matter as to which such person shall have been adjudged to be
    liable to the corporation unless and only to the extent a court
    finds that, in view of all the circumstances of the case, such
    person is fairly and reasonably entitled to indemnity for such
    expenses as the court shall deem proper.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Our restated certificate of incorporation, as amended (article
    eight), limits the liability of directors to the maximum extent
    permitted by the DGCL. Our restated certificate of
    incorporation, as amended (article nine), provides that we shall
    indemnify our officers, directors and agents to the fullest
    extent permitted by law, including those circumstances where
    indemnification would otherwise be discretionary. We believe
    that indemnification under our restated certificate of
    incorporation, as amended, covers at least negligence and gross
    negligence on the part of indemnified parties. We may enter into
    indemnification agreements with each of our directors and
    officers, which may, in some cases, be broader than the specific
    indemnification provisions contained in the DGCL. The
    indemnification agreements may require us, among other things,
    to indemnify each director and officer against certain
    liabilities that may arise by reason of their status or service
    as directors or officers (other than liabilities
</DIV>
<!-- XBRL Paragraph Pagebreak -->
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    II-1
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    arising from willful misconduct of a culpable nature) and to
    advance such persons&#146; expenses incurred as a result of any
    proceeding against him or her as to which such person could be
    indemnified.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    We may purchase and maintain insurance to protect ourselves and
    any indemnified parties against liability or expense asserted or
    incurred by such indemnified party in connection with any
    proceeding, whether or not we would have the power to indemnify
    such person against such liability or expense by law or under
    the indemnification provisions in our restated certificate of
    incorporation, as amended.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

<TR>
    <TD width="9%"></TD>
    <TD width="91%"></TD>
</TR>

<TR valign="top">
    <TD>
    <B><FONT style="font-family: 'Times New Roman', Times">Item&#160;15.<I>&#160;&#160;</I></FONT></B>
</TD>
    <TD>
    <B><I><FONT style="font-family: 'Times New Roman', Times">Recent
    Sales of Unregistered Securities</FONT></I></B>
</TD>
</TR>

</TABLE>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    In the past three years, we have undertaken the following
    unregistered sales of equity securities.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><U><FONT style="font-family: 'Times New Roman', Times">2011</FONT></U></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    On April&#160;11, 2011, we entered into a Subordinated
    Convertible Notes Commitment Letter with Kanis S.A. providing
    for the sale and issuance of $3,000,000 aggregate principal
    amount of 8%&#160;subordinated convertible notes, at par, in one
    or more tranches, on or before May&#160;10, 2011. Accordingly,
    on May&#160;6, 2011, we issued Kanis S.A. $3,000,000 aggregate
    principal amount of 8%&#160;subordinated convertible notes due
    2016.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    The subordinated convertible notes bear interest at a rate of 8%
    per annum, which is payable quarterly in arrears and provide
    that at any time on or after November&#160;11, 2012, and upon
    not less than 30&#160;days prior written notice, the noteholder
    may require us to purchase all or a portion of its subordinated
    convertible notes at a purchase price in cash equal to 100% of
    the principal amount of the notes to be purchased plus any
    accrued but unpaid interest through the date of redemption. The
    subordinated convertible notes also provide that we have the
    option to redeem the notes at any time at a price equal to 100%
    of the face amount plus accrued and unpaid interest through the
    date of redemption. There is no prepayment penalty. We will use
    the net proceeds from the sale of the subordinated convertible
    notes for general working capital purposes. The subordinated
    convertible notes are unsecured obligations and subordinated to
    our existing and future secured indebtedness
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    The subordinated convertible notes have a stated maturity of
    five years from the date of issuance, which maturity may be
    accelerated by the noteholder in the event that: (i)&#160;we are
    in breach of the notes or other agreements between our company
    and the noteholder or (ii)&#160;the noteholder provides written
    notice to us, not less than 30&#160;days prior to such date,
    that it elects to accelerate the maturity to a date not earlier
    than November&#160;11, 2012. The outstanding principal balance
    of, plus accrued and unpaid interest on, the subordinated
    convertible notes are convertible at the option of the
    noteholder at anytime upon written notice given not less than 75
    calendar days prior to the date of conversion into shares of our
    common stock at an initial conversion price equal to $7.044 per
    share, which is equal to 120% of the consolidated closing bid
    price per share of our common stock on April&#160;8, 2011. We
    cannot effect any conversion of the subordinated convertible
    notes, and the noteholder cannot convert any portion of the
    notes, to the extent that after giving effect to such
    conversion, the aggregate number of shares of our common stock
    issued upon conversion would exceed 369,853&#160;shares.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    We issued the subordinated convertible notes in reliance upon an
    exemption from registration under Regulation&#160;S of the
    Securities Act of 1933, as amended.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><U><FONT style="font-family: 'Times New Roman', Times">2010</FONT></U></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    On December&#160;30, 2010, we issued warrants to acquire
    25,000&#160;shares of our common stock at $10.40 per share to
    Kanis S.A. in connection with its $1.5&#160;million loan to our
    company. These warrants are exercisable on or after
    June&#160;30, 2013 and expire on the earlier of
    (x)&#160;June&#160;30, 2016 and (y)&#160;the date that is
    30&#160;days after we give notice to the warrant holder that the
    market value of one share of our common stock has exceeded 130%
    of the exercise price of the warrant for 10 consecutive days,
    which 10 consecutive days commence on or after June&#160;30,
    2013. We did not receive any cash consideration for the issuance
    of the warrants, which were issued in connection with the
    $1.5&#160;million loan from Kanis S.A. We relied on the private
    placement exemption provided by Regulation&#160;S.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    In December 2010, we also issued an aggregate
    153,333&#160;shares of our common stock, $0.01&#160;par value
    per share, to two accredited investors upon the exercise of
    warrants issued on October&#160;15, 2010 to such investors in a
    Regulation&#160;S capital raise (described below) for aggregate
    gross proceeds of $1,214,397 ($7.92 per share). We also
</DIV>
<!-- XBRL Paragraph Pagebreak -->
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    II-2
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    issued to such accredited investors replacement warrants to
    acquire an aggregate 153,333&#160;shares at $7.92 per share.
    Such warrants expire on the earlier of (x)&#160;the third
    anniversary of the date of issuance and (y)&#160;the date that
    is 30&#160;days after we give notice to the warrant holder that
    the market value of one share of our common stock has exceeded
    130% of the exercise price of the warrant for 10 consecutive
    days. An aggregate 25,000 warrants were exercised and
    25,000&#160;shares and 25,000 replacement warrants were issued
    on December&#160;21, 2010 and an aggregate 128,333 warrants were
    exercised and 128,333&#160;shares and 128,333 replacement
    warrants were issued on December&#160;22, 2010. We did not
    receive any cash consideration for the issuance of the
    replacement warrants, which were issued in exchange for the
    exercise by such investors of the warrants received in our
    October 2010 Regulation&#160;S capital raise. We relied on the
    private placement exemption provided by Regulation&#160;S for
    such transactions. We intend to use the proceeds from the
    exercise of the warrants for general corporate purposes.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    We did not register all of the shares and warrants issued on
    October&#160;15, 2010 in connection with the Merger. Only an
    aggregate 560,112&#160;shares of common stock on a post-split
    basis and warrants to acquire 458,295&#160;shares of common
    stock on a post-split basis were registered on the Registration
    Statement. Accordingly, the following securities issued on
    October&#160;15, 2010 in connection with the Merger were sold in
    unregistered transactions (a)&#160;an aggregate
    1,510,189&#160;shares of our common stock on a post-split basis
    to the holders of CSI&#146;s Class&#160;B common stock,
    (b)&#160;166,666&#160;shares of common stock on a post-split
    basis and warrants to purchase 166,666&#160;shares of common
    stock on a post-split basis at $7.92 per share to
    Allen&#160;&#038; Company LLC, CSI&#146;s financial advisor, and
    (c)&#160;an aggregate 50,969&#160;shares of common stock on a
    post-split basis and warrants to acquire 41,705&#160;shares of
    common stock on a post-split basis at $7.92 per share to
    CSI&#146;s former non-employee directors. The warrants issued in
    the Merger expire on the earlier of (x)&#160;October&#160;15,
    2013 (the third anniversary of the effective time of the Merger)
    and (y)&#160;the date that is 30&#160;days after we give notice
    to the warrant holder that the market value of one share of our
    common stock has exceeded 130% of the exercise price of the
    warrant for 10 consecutive days. All of these shares of common
    stock and warrants to purchase our common stock were issued in
    reliance upon the exemption from the registration requirements
    of the Securities Act of 1933, as amended (the &#147;Act&#148;)
    pursuant to Section&#160;4(2) of the Act
    <FONT style="white-space: nowrap">and/or</FONT>
    Rule&#160;506 of Regulation&#160;D promulgated thereunder. In
    addition to the securities issued as part of the Merger
    consideration, we also issued 32,414&#160;shares of common stock
    on a post-split basis and warrants to acquire 14,863&#160;shares
    of common stock on a post-split basis to our financial advisor
    Innovator Capital as payment for fees.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    In addition to the unregistered shares of common stock and
    warrants to purchase common stock issued in connection with the
    Merger, on October&#160;15, 2010, we also completed our
    Regulation&#160;S private placement and sold units consisting of
    110,301&#160;shares of our common stock on a post-split basis
    and warrants to purchase up to 166,666&#160;shares of our common
    stock on a post-split basis at $7.92&#160;share. The warrants
    issued in our Regulation&#160;S private placement have an
    exercise price of $7.92 on a post-split basis ($1.32 on a
    pre-split basis) and expire on the earlier of
    (i)&#160;October&#160;15, 2013 (the third anniversary of the
    effective time of the Merger) and (ii)&#160;the date that is
    30&#160;days after we give notice to the warrant holder that the
    market value of one share of our common stock has exceeded 130%
    of the exercise price of the warrant for 10 consecutive days.
    Due to a calculation error in the number of common shares per
    unit, we mistakenly issued only 109,020&#160;shares of common
    stock on October&#160;15, 2010. After discovery of the error, on
    December&#160;21, 2010 we instructed our transfer agent to
    credit the purchasers an aggregate 1,281&#160;shares. All of
    these shares of common stock and warrants to purchase common
    stock were issued in reliance upon the exemption from the
    registration requirements of the Act pursuant to
    Regulation&#160;S promulgated thereunder. We used the proceeds
    from this Regulation&#160;S private placement for general
    corporate purposes.
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><U><FONT style="font-family: 'Times New Roman', Times">2009</FONT></U></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    In October 2009 pursuant to an opportunity to acquire restricted
    shares of common stock that had been offered to all employees
    and directors of our company, we issued 35,684 restricted shares
    of common stock on a pre-split basis to two directors for
    proceeds of $58,879 based on the October&#160;1, 2009 NASDAQ
    closing price of $1.65 (pre-split). The proceeds were used for
    general corporate purposes. We issued the restricted shares
    pursuant to an exemption from registration under
    Regulation&#160;D of the Act.
</DIV>
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    II-3
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

<TR>
    <TD width="9%"></TD>
    <TD width="91%"></TD>
</TR>

<TR valign="top">
    <TD>
    <B><FONT style="font-family: 'Times New Roman', Times">Item&#160;16.<I>&#160;&#160;</I></FONT></B>
</TD>
    <TD>
    <B><I><FONT style="font-family: 'Times New Roman', Times">Exhibits
    and Financial Statement Schedules.</FONT></I></B>
</TD>
</TR>

</TABLE>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE border="0" width="100%" align="center" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
<!-- Table Width Row BEGIN -->
<TR style="font-size: 1pt" valign="bottom">
    <TD width="3%" align="right">&nbsp;</TD>	<!-- colindex=01 type=lead -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=01 type=body -->
    <TD width="3%" align="left">&nbsp;</TD>	<!-- colindex=01 type=align1 -->
    <TD width="2%">&nbsp;</TD>	<!-- colindex=02 type=gutter -->
    <TD width="91%">&nbsp;</TD>	<!-- colindex=02 type=maindata -->
</TR>
<!-- Table Width Row END -->
<!-- TableOutputHead -->
<!-- TableOutputBody -->
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    1
</TD>
<TD nowrap align="left" valign="top">
    .1**
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Form of Underwriting Agreement
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    2
</TD>
<TD nowrap align="left" valign="top">
    .1
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Agreement and Plan of Merger, dated as of May 13, 2010, among
    Clean Diesel Technologies, Inc. (&#147;Clean Diesel&#148;), CDTI
    Merger Sub, Inc. and Catalytic Solutions , Inc. (incorporated by
    reference to Annex A to the joint proxy statement/information
    statement and prospectus included in Clean Diesel&#146;s
    Registration Statement on Form S-4/A filed on September 23,
    2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    2
</TD>
<TD nowrap align="left" valign="top">
    .2
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Letter Agreement dated September 1, 2010 amending the Agreement
    and Plan of Merger dated as of May 13, 2010 (incorporated by
    reference to Exhibit 2.2 to the joint proxy
    statement/information statement and prospectus included in Clean
    Diesel&#146;s Registration Statement on Form S-4/A filed on
    September 23, 2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    2
</TD>
<TD nowrap align="left" valign="top">
    .3
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Letter Agreement dated September 14, 2010 amending the Agreement
    and Plan of Merger dated as of May 13, 2010 (incorporated by
    reference to Exhibit 2.3 to the joint proxy
    statement/information statement and prospectus included in Clean
    Diesel&#146;s Registration Statement on Form S-4/A filed on
    September 23, 2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    3
</TD>
<TD nowrap align="left" valign="top">
    .1
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Restated Certificate of Incorporation of Clean Diesel
    (incorporated by reference to Exhibit 3(i)(a) to Clean
    Diesel&#146;s Annual report on Form 10-K for the year ended
    December 31, 2006 and filed on March 30, 2007)
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    3
</TD>
<TD nowrap align="left" valign="top">
    .2
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Certificate of Amendment of Restated Certificate of
    Incorporation (incorporated by reference to Exhibit 3(i)(b) to
    Clean Diesel&#146;s Registration Statement on Form S-1 (No.
    333-144201) dated on June 29, 2007)
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    3
</TD>
<TD nowrap align="left" valign="top">
    .3
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Certificate of Amendment of Restated Certificate of
    Incorporation (incorporated by reference to Exhibit 3.3 to Clean
    Diesel&#146;s Post-Effective Amendment No. 1 to Form S-4 on Form
    S-3 (No. 333-166865) filed on November 10, 2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    3
</TD>
<TD nowrap align="left" valign="top">
    .4
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    By-Laws of Clean Diesel as amended through November 6, 2008
    (incorporated by reference to Exhibit 3.1 to Clean Diesel&#146;s
    Quarterly Report on Form 10-Q filed on November 10, 2008).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    4
</TD>
<TD nowrap align="left" valign="top">
    .1
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Specimen of Certificate for Clean Diesel Common Stock
    (incorporated by reference to Exhibit 4.1 to Clean Diesel&#146;s
    Post-Effective Amendment No. 1 to Form S-4 on Form S-3 (No.
    333-166865) filed on November 10, 2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    5
</TD>
<TD nowrap align="left" valign="top">
    .1**
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Opinion of Reed Smith LLP as to validity of the securities
    issued.
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .1
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Letter Agreement, dated May 13, 2010 between Clean Diesel and
    Innovator Capital, Ltd. (incorporated by reference to Exhibit
    10.1 to Clean Diesel&#146;s Current Report on Form 8-K filed on
    May 18, 2010) as amended by the Letter Agreement, dated August
    23, 2010 between Clean Diesel and Innovator Capital, Ltd.
    (incorporated by reference to Exhibit 10.1 to Clean
    Diesel&#146;s Current Report on Form 8-K filed on August 25,
    2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .2
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Form of Warrant issued to Innovator Capital, Ltd., dated October
    15, 2010 (incorporated by reference to Exhibit 10.2 to Clean
    Diesel&#146;s Annual Report on Form 10-K filed on March 31,
    2011).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .3
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Engagement Letter between Clean Diesel and Innovator Capital
    Ltd., dated November 20, 2009 (incorporated by reference to
    Exhibit 10 to Clean Diesel&#146;s Current Report on Form 8-K
    filed on November 24, 2009) as amended by the Amendment of
    Engagement Letter between Clean Diesel and Innovator Capital Ltd
    dated April 21, 2010 (incorporated by reference to Exhibit 10(a)
    to Clean Diesel&#146;s Quarterly Report on Form 10-Q filed on
    May 14, 2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .4
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Form of Clean Diesel Offshore Private Placement Commitment
    Letter, including Form of Warrant, dated May 2010 (incorporated
    by reference to Exhibit 10.4 to Clean Diesel&#146;s Annual
    Report on Form 10-K filed on March 31, 2011).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .5
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Form of Warrant to purchase Common Stock (incorporated by
    reference to Exhibit 4.2 to Clean Diesel&#146;s Post-Effective
    Amendment No. 1 to Form S-4 on Form S-3 (No. 333-166865) filed
    on November 10, 2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .6
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Registration Rights Agreement dated October 15, 2010
    (incorporated by reference to Exhibit 10.1 to Clean
    Diesel&#146;s Current Report on Form 8-K filed on October 21,
    2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .7
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Assignment and Assumption Agreement dated October 15, 2010
    (incorporated by reference to Exhibit 10.2 to Clean
    Diesel&#146;s Current Report on Form 8-K filed on October 21,
    2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .8
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Settlement Agreement dated October 20, 2010 (incorporated by
    reference to Exhibit 10.1 to Clean Diesel&#146;s Current Report
    on Form 8-K filed on October 25, 2010).
</TD>
</TR>
</TABLE>
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    II-4
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->
<!-- XBRL Table Pagebreak -->

<TABLE border="0" width="100%" align="center" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
<!-- Table Width Row BEGIN -->
<TR style="font-size: 1pt" valign="bottom">
    <TD width="3%" align="right">&nbsp;</TD>	<!-- colindex=01 type=lead -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=01 type=body -->
    <TD width="3%" align="left">&nbsp;</TD>	<!-- colindex=01 type=align1 -->
    <TD width="2%">&nbsp;</TD>	<!-- colindex=02 type=gutter -->
    <TD width="91%">&nbsp;</TD>	<!-- colindex=02 type=maindata -->
</TR>
<!-- Table Width Row END -->
<!-- TableOutputHead -->
<!-- TableOutputBody -->
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .9
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Loan Commitment Letter, dated December 30, 2010, between Kanis
    S.A. and Clean Diesel (incorporated by reference to Exhibit 10.1
    to Clean Diesel&#146;s Current Report on Form 8-K filed on
    January 5, 2011).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .10
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Form of $1,500,000 Promissory Note Dated December 30, 2010
    (incorporated by reference to Schedule A to Loan Commitment
    Letter filed as Exhibit 10.1 to Clean Diesel&#146;s current
    report on Form 8-K filed on January 5, 2011).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .11
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Form of Warrant issued to Kanis S.A., dated December 30, 2010
    (incorporated by reference to Schedule B to Loan Commitment
    Letter filed as Exhibit 10.1 to Clean Diesel&#146;s current
    report on Form 8-K filed on January 5, 2011).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .12
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Letter Agreement dated January 13, 2011 among Fifth Third Bank,
    Catalytic Solutions, Inc. and certain other direct or indirect
    subsidiaries of Clean Diesel (incorporated by reference to
    Exhibit 10.1 to Clean Diesel&#146;s Current Report on Form 8-K
    filed on January 20, 2011).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .13
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Form of Agreement of Sale of Accounts and Security Agreement,
    dated February 14, 2011 between Faunus Group International, Inc.
    and Clean Diesel (incorporated by reference to Exhibit 10.1 to
    Clean Diesel&#146;s Current Report on Form 8-K filed on February
    16, 2011).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .14
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Form of Agreement Guaranty, dated February 14, 2011 between
    Faunus Group International, Inc. and Clean Diesel, Clean Diesel
    International LLC, Catalytic Solutions, Inc., Engine Control
    Systems, Ltd., Engine Control Systems Limited, Clean Diesel
    Technologies Limited, Engine Control Systems Europe AB, ECS
    Holdings, Inc., Catalytic Solutions Holdings, Inc. and CSI
    Aliso, Inc. (incorporated by reference to Exhibit 10.2 to Clean
    Diesel&#146;s Current Report on Form 8-K filed on February 16,
    2011).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .15
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Subordinated Convertible Notes Commitment Letter, dated April
    11, 2011, between Kanis S.A. and Clean Diesel (incorporated by
    reference to Exhibit 10.1 to Clean Diesel&#146;s Current Report
    on Form 8-K filed on April 13, 2011).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .16
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Form of $3,000,000 promissory note, dated April 11, 2011
    (included as Schedule B to Subordinated Convertible Notes
    Commitment Letter filed as Exhibit 10.1 to Clean Diesel&#146;s
    Current Report on Form 8-K filed on April 13, 2011).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .17&#134;
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Employment Agreement, dated October 17, 2006, between Charles F.
    Call and CSI (incorporated by reference to Exhibit 10.3 to
    Amendment No. 2 to Clean Diesel&#146;s Registration Statement on
    Form S-4/A (No. 333-166865) filed on August 30, 2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .18&#134;
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Employment Agreement, dated July 9, 2008, between Nikhil A.
    Mehta and CSI (incorporated by reference to Exhibit 10.4 to
    Amendment No. 2 to Clean Diesel&#146;s Registration Statement on
    Form S-4/A (No. 333-166865) filed on August 30, 2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .19&#134;
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Employment Agreement, dated October 17, 2006, between Stephen J.
    Golden,&#160;Ph.D., and CSI (incorporated by reference to
    Exhibit 10.5 to Amendment No. 2 to Clean Diesel&#146;s
    Registration Statement on Form S-4/A (No. 333-166865) filed on
    August 30, 2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .20&#134;
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Employment Agreement effective January 16, 2009 between
    Dr.&#160;Daniel K. Skelton and Clean Diesel (incorporated by
    reference to Exhibit 10(t) to Clean Diesel&#146;s Annual Report
    on Form 10-K filed on March 25, 2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .21&#134;
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Employment Agreement effective March 30, 2009 between Michael L.
    Asmussen and Clean Diesel (incorporated by reference to Exhibit
    10 to Clean Diesel&#146;s Quarterly Report on Form 10-Q filed on
    May 11, 2009).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .22&#134;
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Employment Agreement, dated September 23, 2003, between Tim
    Rogers, and Clean Diesel (incorporated by reference to Exhibit
    10(x) to Clean Diesel&#146;s Annual Report on Form 10-K filed on
    March 30, 2007) as amended by the letter agreement dated May 3,
    2004 (incorporated by reference to Exhibit 10(n) to Clean
    Diesel&#146;s Annual Report on Form 10-K filed on March 25,
    2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .23&#134;
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Interim Services Agreement between Clean Diesel and SFN
    Professional Services LLC d/b/a Tatum as of April 23, 2010
    (incorporated by reference to Exhibit 10(b) to Clean
    Diesel&#146;s Quarterly Report on Form 10-Q filed on May 14,
    2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .24&#134;
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Consulting Services Agreement effective January 27, 2010 between
    David F. Merrion and Clean Diesel (incorporated by reference to
    Exhibit 10(u) to Clean Diesel&#146;s Annual Report on Form 10-K
    filed on March 25, 2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .25&#134;
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    1994 Incentive Plan as amended through June 11, 2002
    (incorporated by reference to Exhibit 10(d) to Clean
    Diesel&#146;s Annual Report on Form 10-K filed on March 30,
    2007).
</TD>
</TR>
</TABLE>
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    II-5
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->
<!-- XBRL Table Pagebreak -->

<TABLE border="0" width="100%" align="center" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
<!-- Table Width Row BEGIN -->
<TR style="font-size: 1pt" valign="bottom">
    <TD width="3%" align="right">&nbsp;</TD>	<!-- colindex=01 type=lead -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=01 type=body -->
    <TD width="3%" align="left">&nbsp;</TD>	<!-- colindex=01 type=align1 -->
    <TD width="2%">&nbsp;</TD>	<!-- colindex=02 type=gutter -->
    <TD width="91%">&nbsp;</TD>	<!-- colindex=02 type=maindata -->
</TR>
<!-- Table Width Row END -->
<!-- TableOutputHead -->
<!-- TableOutputBody -->
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .26&#134;
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Form of Incentive Stock Option Agreement (incorporated by
    reference to Exhibit 10(g) to Clean Diesel&#146;s Form 10-K
    filed on March 30, 2007).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .27&#134;
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Form of Non-Qualified Stock Option Agreement (incorporated by
    reference to Exhibit 10(h) to Clean Diesel&#146;s Form 10-K
    filed on March 30, 2007).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .28&#134;
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Form of Non-Executive Director Stock Option Agreement
    (incorporated by reference to Exhibit 4.10 to Clean
    Diesel&#146;s Registration Statement on Form S-8 (No.
    333-117057) dated July 1, 2004).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    21
</TD>
<TD nowrap align="left" valign="top">
    .1
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Subsidiaries of the registrant (incorporated by reference to
    Exhibit 21.1 to Clean Diesel&#146;s Annual Report on Form 10-K
    filed on March 31, 2011).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    23
</TD>
<TD nowrap align="left" valign="top">
    .1*
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Consent of KPMG LLP, Independent Registered Public Accounting
    Firm.
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    23
</TD>
<TD nowrap align="left" valign="top">
    .3
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Consent of Reed Smith LLP (included in Exhibit 5.1).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    24
</TD>
<TD nowrap align="left" valign="top">
    .1
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Powers of Attorney, included on signature page
</TD>
</TR>
</TABLE>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV style="font-size: 1pt; margin-left: 0%; width: 13%;  align: left; border-bottom: 1pt solid #000000"></DIV>

<DIV style="margin-top: 3pt; font-size: 1pt">&nbsp;</DIV>



<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

<TR>
    <TD width="2%"></TD>
    <TD width="1%"></TD>
    <TD width="97%"></TD>
</TR>

<TR>
    <TD align="center" valign="top">
    * </TD>
    <TD></TD>
    <TD valign="bottom">
    Filed or furnished herewith</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="right" valign="top">
    ** </TD>
    <TD></TD>
    <TD valign="bottom">
    To be filed by amendment</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="center" valign="top">
    &#134; </TD>
    <TD></TD>
    <TD valign="bottom">
    Indicates a management contract or compensatory plan or
    arrangement</TD>
</TR>

</TABLE>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

<TR>
    <TD width="9%"></TD>
    <TD width="91%"></TD>
</TR>

<TR valign="top">
    <TD>
    <B><FONT style="font-family: 'Times New Roman', Times">Item&#160;17.<I>&#160;&#160;</I></FONT></B>
</TD>
    <TD>
    <B><I><FONT style="font-family: 'Times New Roman', Times">Undertakings</FONT></I></B>
</TD>
</TR>

</TABLE>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Insofar as indemnification for liabilities arising under the
    Securities Act may be permitted to our directors, officers, and
    controlling persons pursuant to the foregoing provisions, or
    otherwise, we have been advised that in the opinion of the SEC
    such indemnification is against public policy as expressed in
    the Securities Act and is, therefore, unenforceable. In the
    event that a claim for indemnification against such liabilities
    (other than the payment by us of expenses incurred or paid by a
    director, officer, or controlling person of us in the successful
    defense of any action, suit, or proceeding) is asserted by such
    director, officer, or controlling person in connection with the
    securities being registered, we will, unless in the opinion of
    counsel the matter has been settled by controlling precedent,
    submit to a court of appropriate jurisdiction the question
    whether such indemnification by us is against public policy as
    expressed in the Securities Act and will be governed by the
    final adjudication of such issue.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    We hereby undertake that:
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0">

<TR>
    <TD width="4%"></TD>
    <TD width="2%"></TD>
    <TD width="94%"></TD>
</TR>

<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    For purposes of determining any liability under the Securities
    Act, the information omitted from the form of prospectus filed
    as part of this registration statement in reliance upon
    Rule&#160;430A and contained in a form of prospectus filed by us
    pursuant to Rule&#160;424(b)(1) or (4)&#160;or 497(h) under the
    Securities Act shall be deemed to be part of this registration
    statement as of the time it was declared effective.
</TD>
</TR>


<TR style="line-height: 6pt; font-size: 1pt"><TD>&nbsp;</TD></TR>


<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    &#149;&#160;
</TD>
    <TD align="left">
    For the purpose of determining any liability under the
    Securities Act, each post-effective amendment that contains a
    form of prospectus shall be deemed to be a new registration
    statement relating to the securities offered therein, and the
    offering of such securities at that time shall be deemed to be
    the initial <I>bona fide </I>offering thereof.
</TD>
</TR>

</TABLE>
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    II-6
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<DIV align="center" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">SIGNATURES</FONT></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Pursuant to the requirements of the Securities Act of 1933, as
    amended, the registrant has duly caused this registration
    statement to be signed on its behalf by the undersigned,
    thereunto duly authorized, in the City of Ventura, State of
    California, on the
    2<SUP style="font-size: 85%; vertical-align: top">nd</SUP>&#160;day

    of June, 2011.
</DIV>

<DIV style="margin-top: 24pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 49%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    CLEAN DIESEL TECHNOLOGIES, INC.
</DIV>

<DIV style="margin-top: 48pt; font-size: 1pt">&nbsp;</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0">

<TR>
    <TD width="49%"></TD>
    <TD width="4%"></TD>
    <TD width="47%"></TD>
</TR>

<TR valign="top" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <TD>&nbsp;</TD>
    <TD>    By:&#160;
</TD>
    <TD align="left">
    <DIV style="display:inline; text-align:left;">/s/&#160;&#160;<FONT style="font-variant: SMALL-CAPS">
    Charles F. Call</FONT></DIV>
</TD>
</TR>

</TABLE>

<DIV style="font-size: 2pt; margin-left: 53%; width: 100%;  align: left; border-bottom: 1pt solid #000000"></DIV>

<DIV align="left" style="margin-left: 53%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Charles F. Call
</DIV>

<DIV align="left" style="margin-left: 53%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Chief Executive Officer
</DIV>

<DIV align="left" style="margin-left: 53%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    (Principal Executive Officer)
</DIV>

<DIV style="margin-top: 18pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="center" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">POWER OF
    ATTORNEY</FONT></B>
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    KNOW ALL PERSONS BY THESE PRESENTS, that each person whose
    signature appears below on this Registration Statement
    constitutes and appoints Charles F. Call and Nikhil A. Mehta,
    each of whom may act without joinder of the other, as their true
    and lawful attorneys-in-fact and agents, each with full power of
    substitution and resubstitution, for such person and in his or
    her name, place and stead, in any and all capacities, to sign
    any and all amendments (including post-effective amendments) to
    this Registration Statement, and any and all additional
    registration statements for the same offering covered by this
    Registration Statement that is to be effective upon filing
    pursuant to Rule&#160;462(b) promulgated under the Securities
    Act of 1933, as amended, and all post-effective amendments
    thereto, and to file the same, with all exhibits thereto and
    other documents in connection therewith, with the Securities and
    Exchange Commission, granting unto said attorneys-in-fact and
    agents full power and authority to do and perform each and every
    act and thing requisite and necessary to be done in and about
    the premises, as fully to all intents and purposes as he might
    or could do in person, hereby ratifying and confirming all that
    said attorneys-in-fact and agents, or their substitutes, may
    lawfully do or cause to be done by virtue hereof.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 4%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    Pursuant to the requirements of the Securities Act of 1933, as
    amended, this Registration Statement has been signed below by
    the following persons in the capacities and on the dates
    indicated.
</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<TABLE border="0" width="100%" align="center" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
<!-- Table Width Row BEGIN -->
<TR style="font-size: 1pt" valign="bottom">
    <TD width="2%">&nbsp;</TD>	<!-- colindex=01 type=maindata -->
    <TD width="1%">&nbsp;</TD>	<!-- colindex=02 type=gutter -->
    <TD width="40%">&nbsp;</TD>	<!-- colindex=02 type=maindata -->
    <TD width="3%">&nbsp;</TD>	<!-- colindex=03 type=gutter -->
    <TD width="40%">&nbsp;</TD>	<!-- colindex=03 type=maindata -->
    <TD width="3%">&nbsp;</TD>	<!-- colindex=04 type=gutter -->
    <TD width="11%">&nbsp;</TD>	<!-- colindex=04 type=maindata -->
</TR>
<!-- Table Width Row END -->
<!-- TableOutputHead -->
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD colspan="3" nowrap align="center" valign="bottom">
<DIV style="border-bottom: 1px solid #000000; width: 1%; padding-bottom: 1px">
    <B>Signature</B>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="center" valign="bottom">
<DIV style="border-bottom: 1px solid #000000; width: 1%; padding-bottom: 1px">
    <B>Title</B>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="center" valign="bottom">
<DIV style="border-bottom: 1px solid #000000; width: 1%; padding-bottom: 1px">
    <B>Date</B>
</DIV>
</TD>
</TR>
<TR style="line-height: 12pt; font-size: 1pt">
<TD>&nbsp;
</TD>
</TR>
<!-- TableOutputBody -->
<TR valign="bottom" style="line-height: 14pt">
<TD colspan="3">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD colspan="3" valign="top">
    <DIV style="display:inline; text-align:left;">/s/&#160;&#160;<FONT style="font-variant: SMALL-CAPS">Charles
    F. Call</FONT></DIV><BR>
    <DIV style="font-size: 2pt; margin-left: 0%; width: 100%;  align: left; border-bottom: 1pt solid #000000"></DIV>Charles
    F. Call
</TD>
<TD>
&nbsp;
</TD>
<TD align="center" valign="top">
    Director, Chief Executive Officer (Principal Executive Officer)
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="center" valign="top">
    June&#160;2, 2011
</TD>
</TR>
<TR valign="bottom" style="line-height: 14pt">
<TD colspan="3">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD colspan="3" valign="top">
    <DIV style="display:inline; text-align:left;">/s/&#160;&#160;<FONT style="font-variant: SMALL-CAPS">Nikhil
    A. Mehta</FONT></DIV><BR>
    <DIV style="font-size: 2pt; margin-left: 0%; width: 100%;  align: left; border-bottom: 1pt solid #000000"></DIV>Nikhil
    A. Mehta
</TD>
<TD>
&nbsp;
</TD>
<TD align="center" valign="top">
    Chief Financial Officer<BR>
    (Principal Financial Officer)
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="center" valign="top">
    June&#160;2, 2011
</TD>
</TR>
<TR valign="bottom" style="line-height: 14pt">
<TD colspan="3">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD colspan="3" valign="top">
    <DIV style="display:inline; text-align:left;">/s/&#160;&#160;<FONT style="font-variant: SMALL-CAPS">David
    E. Shea</FONT></DIV><BR>
    <DIV style="font-size: 2pt; margin-left: 0%; width: 100%;  align: left; border-bottom: 1pt solid #000000"></DIV>David
    E. Shea
</TD>
<TD>
&nbsp;
</TD>
<TD align="center" valign="top">
    Controller<BR>
    (Principal Accounting Officer)
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="center" valign="top">
    June&#160;2, 2011
</TD>
</TR>
<TR valign="bottom" style="line-height: 14pt">
<TD colspan="3">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD colspan="3" valign="top">
    <DIV style="display:inline; text-align:left;">/s/&#160;&#160;<FONT style="font-variant: SMALL-CAPS">Alexander
    &#147;Hap&#148; Ellis, III</FONT></DIV><BR>
    <DIV style="font-size: 2pt; margin-left: 0%; width: 100%;  align: left; border-bottom: 1pt solid #000000"></DIV>Alexander
    &#147;Hap&#148; Ellis III
</TD>
<TD>
&nbsp;
</TD>
<TD align="center" valign="top">
    Chairman of the Board
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="center" valign="top">
    June&#160;2, 2011
</TD>
</TR>
<TR valign="bottom" style="line-height: 14pt">
<TD colspan="3">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD colspan="3" valign="top">
    <DIV style="display:inline; text-align:left;">/s/&#160;&#160;<FONT style="font-variant: SMALL-CAPS">Bernard
    (&#147;Bud&#148;) H. Cherry</FONT></DIV><BR>
    <DIV style="font-size: 2pt; margin-left: 0%; width: 100%;  align: left; border-bottom: 1pt solid #000000"></DIV>Bernard
    (&#147;Bud&#148;) H. Cherry
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="center" valign="top">
    Director
</TD>
<TD>
&nbsp;
</TD>
<TD align="center" valign="top">
    June&#160;2, 2011
</TD>
</TR>
</TABLE>
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    II-7
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->
<!-- XBRL Table Pagebreak -->

<TABLE border="0" width="100%" align="center" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
<!-- Table Width Row BEGIN -->
<TR style="font-size: 1pt" valign="bottom">
    <TD width="2%">&nbsp;</TD>	<!-- colindex=01 type=maindata -->
    <TD width="1%">&nbsp;</TD>	<!-- colindex=02 type=gutter -->
    <TD width="40%">&nbsp;</TD>	<!-- colindex=02 type=maindata -->
    <TD width="3%">&nbsp;</TD>	<!-- colindex=03 type=gutter -->
    <TD width="40%">&nbsp;</TD>	<!-- colindex=03 type=maindata -->
    <TD width="3%">&nbsp;</TD>	<!-- colindex=04 type=gutter -->
    <TD width="11%">&nbsp;</TD>	<!-- colindex=04 type=maindata -->
</TR>
<!-- Table Width Row END -->
<!-- TableOutputHead -->
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD colspan="3" nowrap align="center" valign="bottom">
<DIV style="border-bottom: 1px solid #000000; width: 1%; padding-bottom: 1px">
    <B>Signature</B>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="center" valign="bottom">
<DIV style="border-bottom: 1px solid #000000; width: 1%; padding-bottom: 1px">
    <B>Title</B>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="center" valign="bottom">
<DIV style="border-bottom: 1px solid #000000; width: 1%; padding-bottom: 1px">
    <B>Date</B>
</DIV>
</TD>
</TR>
<TR style="line-height: 12pt; font-size: 1pt">
<TD>&nbsp;
</TD>
</TR>
<!-- TableOutputBody -->
<TR valign="bottom" style="line-height: 14pt">
<TD colspan="3">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD colspan="3" valign="top">
    <DIV style="display:inline; text-align:left;">/s/&#160;&#160;<FONT style="font-variant: SMALL-CAPS">Charles
    R. Engles,&#160;Ph.D.</FONT></DIV><BR>
    <DIV style="font-size: 2pt; margin-left: 0%; width: 100%;  align: left; border-bottom: 1pt solid #000000"></DIV>Charles
    R. Engles,&#160;Ph.D.
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="center" valign="top">
    Director
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="center" valign="top">
    June&#160;2, 2011
</TD>
</TR>
<TR valign="bottom" style="line-height: 14pt">
<TD colspan="3">
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
<TD>
&nbsp;
</TD>
</TR>
<TR valign="bottom">
<TD colspan="3" valign="top">
    <DIV style="display:inline; text-align:left;">/s/&#160;&#160;<FONT style="font-variant: SMALL-CAPS">Mungo
    Park</FONT></DIV><BR>
    <DIV style="font-size: 2pt; margin-left: 0%; width: 100%;  align: left; border-bottom: 1pt solid #000000"></DIV>Mungo
    Park
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="center" valign="top">
    Director
</TD>
<TD>
&nbsp;
</TD>
<TD align="center" valign="top">
    June&#160;2, 2011
</TD>
</TR>
</TABLE>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

</DIV>
<!-- XBRL Pagebreak Begin -->

<P align="center" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
    <BR>
    II-8
</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->

<DIV align="center" style="margin-left: 0%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: transparent">

    <B><FONT style="font-family: 'Times New Roman', Times">INDEX TO
    EXHIBITS</FONT></B>
</DIV>

<DIV style="margin-top: 12pt; font-size: 1pt">&nbsp;</DIV>

<TABLE border="0" width="100%" align="center" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
<!-- Table Width Row BEGIN -->
<TR style="font-size: 1pt" valign="bottom">
    <TD width="3%" align="right">&nbsp;</TD>	<!-- colindex=01 type=lead -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=01 type=body -->
    <TD width="3%" align="left">&nbsp;</TD>	<!-- colindex=01 type=align1 -->
    <TD width="2%">&nbsp;</TD>	<!-- colindex=02 type=gutter -->
    <TD width="91%">&nbsp;</TD>	<!-- colindex=02 type=maindata -->
</TR>
<!-- Table Width Row END -->
<!-- TableOutputHead -->
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD colspan="3" nowrap align="center" valign="bottom">
    <B>Exhibit<BR>
    </B>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="center" valign="bottom">
&nbsp;
</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD colspan="3" nowrap align="center" valign="bottom">
<DIV style="border-bottom: 1px solid #000000; width: 1%; padding-bottom: 1px">
    <B>No.</B>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="center" valign="bottom">
<DIV style="border-bottom: 1px solid #000000; width: 1%; padding-bottom: 1px">
    <B>Description of Exhibit</B>
</DIV>
</TD>
</TR>
<TR style="line-height: 3pt; font-size: 1pt">
<TD>&nbsp;
</TD>
</TR>
<!-- TableOutputBody -->
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    1
</TD>
<TD nowrap align="left" valign="top">
    .1**
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Form of Underwriting Agreement
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    2
</TD>
<TD nowrap align="left" valign="top">
    .1
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Agreement and Plan of Merger, dated as of May 13, 2010, among
    Clean Diesel Technologies, Inc. (&#147;Clean Diesel&#148;), CDTI
    Merger Sub, Inc. and Catalytic Solutions , Inc. (incorporated by
    reference to Annex A to the joint proxy statement/information
    statement and prospectus included in Clean Diesel&#146;s
    Registration Statement on Form S-4/A filed on September 23,
    2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    2
</TD>
<TD nowrap align="left" valign="top">
    .2
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Letter Agreement dated September 1, 2010 amending the Agreement
    and Plan of Merger dated as of May 13, 2010 (incorporated by
    reference to Exhibit 2.2 to the joint proxy
    statement/information statement and prospectus included in Clean
    Diesel&#146;s Registration Statement on Form S-4/A filed on
    September 23, 2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    2
</TD>
<TD nowrap align="left" valign="top">
    .3
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Letter Agreement dated September 14, 2010 amending the Agreement
    and Plan of Merger dated as of May 13, 2010 (incorporated by
    reference to Exhibit 2.3 to the joint proxy
    statement/information statement and prospectus included in Clean
    Diesel&#146;s Registration Statement on Form S-4/A filed on
    September 23, 2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    3
</TD>
<TD nowrap align="left" valign="top">
    .1
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Restated Certificate of Incorporation of Clean Diesel
    (incorporated by reference to Exhibit 3(i)(a) to Clean
    Diesel&#146;s Annual report on Form 10-K for the year ended
    December 31, 2006 and filed on March 30, 2007)
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    3
</TD>
<TD nowrap align="left" valign="top">
    .2
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Certificate of Amendment of Restated Certificate of
    Incorporation (incorporated by reference to Exhibit 3(i)(b) to
    Clean Diesel&#146;s Registration Statement on Form S-1 (No.
    333-144201) dated on June 29, 2007)
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    3
</TD>
<TD nowrap align="left" valign="top">
    .3
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Certificate of Amendment of Restated Certificate of
    Incorporation (incorporated by reference to Exhibit 3.3 to Clean
    Diesel&#146;s Post-Effective Amendment No. 1 to Form S-4 on Form
    S-3 (No. 333-166865) filed on November 10, 2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    3
</TD>
<TD nowrap align="left" valign="top">
    .4
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    By-Laws of Clean Diesel as amended through November 6, 2008
    (incorporated by reference to Exhibit 3.1 to Clean Diesel&#146;s
    Quarterly Report on Form 10-Q filed on November 10, 2008).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    4
</TD>
<TD nowrap align="left" valign="top">
    .1
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Specimen of Certificate for Clean Diesel Common Stock
    (incorporated by reference to Exhibit 4.1 to Clean Diesel&#146;s
    Post-Effective Amendment No. 1 to Form S-4 on Form S-3 (No.
    333-166865) filed on November 10, 2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    5
</TD>
<TD nowrap align="left" valign="top">
    .1**
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Opinion of Reed Smith LLP as to validity of the securities
    issued.
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .1
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Letter Agreement, dated May 13, 2010 between Clean Diesel and
    Innovator Capital, Ltd. (incorporated by reference to Exhibit
    10.1 to Clean Diesel&#146;s Current Report on Form 8-K filed on
    May 18, 2010) as amended by the Letter Agreement, dated August
    23, 2010 between Clean Diesel and Innovator Capital, Ltd.
    (incorporated by reference to Exhibit 10.1 to Clean
    Diesel&#146;s Current Report on Form 8-K filed on August 25,
    2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .2
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Form of Warrant issued to Innovator Capital, Ltd., dated October
    15, 2010 (incorporated by reference to Exhibit 10.2 to Clean
    Diesel&#146;s Annual Report on Form 10-K filed on March 31,
    2011).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .3
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Engagement Letter between Clean Diesel and Innovator Capital
    Ltd., dated November 20, 2009 (incorporated by reference to
    Exhibit 10 to Clean Diesel&#146;s Current Report on Form 8-K
    filed on November 24, 2009) as amended by the Amendment of
    Engagement Letter between Clean Diesel and Innovator Capital Ltd
    dated April 21, 2010 (incorporated by reference to Exhibit 10(a)
    to Clean Diesel&#146;s Quarterly Report on Form 10-Q filed on
    May 14, 2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .4
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Form of Clean Diesel Offshore Private Placement Commitment
    Letter, including Form of Warrant, dated May 2010 (incorporated
    by reference to Exhibit 10.4 to Clean Diesel&#146;s Annual
    Report on Form 10-K filed on March 31, 2011).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .5
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Form of Warrant to purchase Common Stock (incorporated by
    reference to Exhibit 4.2 to Clean Diesel&#146;s Post-Effective
    Amendment No. 1 to Form S-4 on Form S-3 (No. 333-166865) filed
    on November 10, 2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .6
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Registration Rights Agreement dated October 15, 2010
    (incorporated by reference to Exhibit 10.1 to Clean
    Diesel&#146;s Current Report on Form 8-K filed on October 21,
    2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .7
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Assignment and Assumption Agreement dated October 15, 2010
    (incorporated by reference to Exhibit 10.2 to Clean
    Diesel&#146;s Current Report on Form 8-K filed on October 21,
    2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .8
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Settlement Agreement dated October 20, 2010 (incorporated by
    reference to Exhibit 10.1 to Clean Diesel&#146;s Current Report
    on Form 8-K filed on October 25, 2010).
</TD>
</TR>
</TABLE>
<!-- XBRL Pagebreak Begin -->

<P align="left" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->
<!-- XBRL Table Pagebreak -->

<TABLE border="0" width="100%" align="center" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
<!-- Table Width Row BEGIN -->
<TR style="font-size: 1pt" valign="bottom">
    <TD width="3%" align="right">&nbsp;</TD>	<!-- colindex=01 type=lead -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=01 type=body -->
    <TD width="3%" align="left">&nbsp;</TD>	<!-- colindex=01 type=align1 -->
    <TD width="2%">&nbsp;</TD>	<!-- colindex=02 type=gutter -->
    <TD width="91%">&nbsp;</TD>	<!-- colindex=02 type=maindata -->
</TR>
<!-- Table Width Row END -->
<!-- TableOutputHead -->
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD colspan="3" nowrap align="center" valign="bottom">
    <B>Exhibit<BR>
    </B>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="center" valign="bottom">
&nbsp;
</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD colspan="3" nowrap align="center" valign="bottom">
<DIV style="border-bottom: 1px solid #000000; width: 1%; padding-bottom: 1px">
    <B>No.</B>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="center" valign="bottom">
<DIV style="border-bottom: 1px solid #000000; width: 1%; padding-bottom: 1px">
    <B>Description of Exhibit</B>
</DIV>
</TD>
</TR>
<TR style="line-height: 3pt; font-size: 1pt">
<TD>&nbsp;
</TD>
</TR>
<!-- TableOutputBody -->
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .9
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Loan Commitment Letter, dated December 30, 2010, between Kanis
    S.A. and Clean Diesel (incorporated by reference to Exhibit 10.1
    to Clean Diesel&#146;s Current Report on Form 8-K filed on
    January 5, 2011).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .10
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Form of $1,500,000 Promissory Note Dated December 30, 2010
    (incorporated by reference to Schedule A to Loan Commitment
    Letter filed as Exhibit 10.1 to Clean Diesel&#146;s current
    report on Form 8-K filed on January 5, 2011).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .11
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Form of Warrant issued to Kanis S.A., dated December 30, 2010
    (incorporated by reference to Schedule B to Loan Commitment
    Letter filed as Exhibit 10.1 to Clean Diesel&#146;s current
    report on Form 8-K filed on January 5, 2011).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .12
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Letter Agreement dated January 13, 2011 among Fifth Third Bank,
    Catalytic Solutions, Inc. and certain other direct or indirect
    subsidiaries of Clean Diesel (incorporated by reference to
    Exhibit 10.1 to Clean Diesel&#146;s Current Report on Form 8-K
    filed on January 20, 2011).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .13
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Form of Agreement of Sale of Accounts and Security Agreement,
    dated February 14, 2011 between Faunus Group International, Inc.
    and Clean Diesel (incorporated by reference to Exhibit 10.1 to
    Clean Diesel&#146;s Current Report on Form 8-K filed on February
    16, 2011).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .14
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Form of Agreement Guaranty, dated February 14, 2011 between
    Faunus Group International, Inc. and Clean Diesel, Clean Diesel
    International LLC, Catalytic Solutions, Inc., Engine Control
    Systems, Ltd., Engine Control Systems Limited, Clean Diesel
    Technologies Limited, Engine Control Systems Europe AB, ECS
    Holdings, Inc., Catalytic Solutions Holdings, Inc. and CSI
    Aliso, Inc. (incorporated by reference to Exhibit 10.2 to Clean
    Diesel&#146;s Current Report on Form 8-K filed on February 16,
    2011).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .15
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Subordinated Convertible Notes Commitment Letter, dated April
    11, 2011, between Kanis S.A. and Clean Diesel (incorporated by
    reference to Exhibit 10.1 to Clean Diesel&#146;s Current Report
    on Form 8-K filed on April 13, 2011).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .16
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Form of $3,000,000 promissory note, dated April 11, 2011
    (included as Schedule B to Subordinated Convertible Notes
    Commitment Letter filed as Exhibit 10.1 to Clean Diesel&#146;s
    Current Report on Form 8-K filed on April 13, 2011).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .17&#134;
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Employment Agreement, dated October 17, 2006, between Charles F.
    Call and CSI (incorporated by reference to Exhibit 10.3 to
    Amendment No. 2 to Clean Diesel&#146;s Registration Statement on
    Form S-4/A (No. 333-166865) filed on August 30, 2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .18&#134;
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Employment Agreement, dated July 9, 2008, between Nikhil A.
    Mehta and CSI (incorporated by reference to Exhibit 10.4 to
    Amendment No. 2 to Clean Diesel&#146;s Registration Statement on
    Form S-4/A (No. 333-166865) filed on August 30, 2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .19&#134;
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Employment Agreement, dated October 17, 2006, between Stephen J.
    Golden,&#160;Ph.D., and CSI (incorporated by reference to
    Exhibit 10.5 to Amendment No. 2 to Clean Diesel&#146;s
    Registration Statement on Form S-4/A (No. 333-166865) filed on
    August 30, 2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .20&#134;
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Employment Agreement effective January 16, 2009 between
    Dr.&#160;Daniel K. Skelton and Clean Diesel (incorporated by
    reference to Exhibit 10(t) to Clean Diesel&#146;s Annual Report
    on Form 10-K filed on March 25, 2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .21&#134;
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Employment Agreement effective March 30, 2009 between Michael L.
    Asmussen and Clean Diesel (incorporated by reference to Exhibit
    10 to Clean Diesel&#146;s Quarterly Report on Form 10-Q filed on
    May 11, 2009).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .22&#134;
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Employment Agreement, dated September 23, 2003, between Tim
    Rogers, and Clean Diesel (incorporated by reference to Exhibit
    10(x) to Clean Diesel&#146;s Annual Report on Form 10-K filed on
    March 30, 2007) as amended by the letter agreement dated May 3,
    2004 (incorporated by reference to Exhibit 10(n) to Clean
    Diesel&#146;s Annual Report on Form 10-K filed on March 25,
    2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .23&#134;
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Interim Services Agreement between Clean Diesel and SFN
    Professional Services LLC d/b/a Tatum as of April 23, 2010
    (incorporated by reference to Exhibit 10(b) to Clean
    Diesel&#146;s Quarterly Report on Form 10-Q filed on May 14,
    2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .24&#134;
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Consulting Services Agreement effective January 27, 2010 between
    David F. Merrion and Clean Diesel (incorporated by reference to
    Exhibit 10(u) to Clean Diesel&#146;s Annual Report on Form 10-K
    filed on March 25, 2010).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .25&#134;
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    1994 Incentive Plan as amended through June 11, 2002
    (incorporated by reference to Exhibit 10(d) to Clean
    Diesel&#146;s Annual Report on Form 10-K filed on March 30,
    2007).
</TD>
</TR>
</TABLE>
<!-- XBRL Pagebreak Begin -->

<P align="left" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

</DIV><!-- END PAGE WIDTH -->
<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59644tocpage">Table of Contents</A></H5><P>

<DIV style="width: 87%; margin-left: 6%"><!-- BEGIN PAGE WIDTH -->
<!-- XBRL Pagebreak End -->
<!-- XBRL Table Pagebreak -->

<TABLE border="0" width="100%" align="center" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">
<!-- Table Width Row BEGIN -->
<TR style="font-size: 1pt" valign="bottom">
    <TD width="3%" align="right">&nbsp;</TD>	<!-- colindex=01 type=lead -->
    <TD width="1%" align="right">&nbsp;</TD>	<!-- colindex=01 type=body -->
    <TD width="3%" align="left">&nbsp;</TD>	<!-- colindex=01 type=align1 -->
    <TD width="2%">&nbsp;</TD>	<!-- colindex=02 type=gutter -->
    <TD width="91%">&nbsp;</TD>	<!-- colindex=02 type=maindata -->
</TR>
<!-- Table Width Row END -->
<!-- TableOutputHead -->
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD colspan="3" nowrap align="center" valign="bottom">
    <B>Exhibit<BR>
    </B>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="center" valign="bottom">
&nbsp;
</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom" align="center">
<TD colspan="3" nowrap align="center" valign="bottom">
<DIV style="border-bottom: 1px solid #000000; width: 1%; padding-bottom: 1px">
    <B>No.</B>
</DIV>
</TD>
<TD>
&nbsp;
</TD>
<TD nowrap align="center" valign="bottom">
<DIV style="border-bottom: 1px solid #000000; width: 1%; padding-bottom: 1px">
    <B>Description of Exhibit</B>
</DIV>
</TD>
</TR>
<TR style="line-height: 3pt; font-size: 1pt">
<TD>&nbsp;
</TD>
</TR>
<!-- TableOutputBody -->
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .26&#134;
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Form of Incentive Stock Option Agreement (incorporated by
    reference to Exhibit 10(g) to Clean Diesel&#146;s Form 10-K
    filed on March 30, 2007).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .27&#134;
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Form of Non-Qualified Stock Option Agreement (incorporated by
    reference to Exhibit 10(h) to Clean Diesel&#146;s Form 10-K
    filed on March 30, 2007).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    10
</TD>
<TD nowrap align="left" valign="top">
    .28&#134;
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Form of Non-Executive Director Stock Option Agreement
    (incorporated by reference to Exhibit 4.10 to Clean
    Diesel&#146;s Registration Statement on Form S-8 (No.
    333-117057) dated July 1, 2004).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    21
</TD>
<TD nowrap align="left" valign="top">
    .1
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Subsidiaries of the registrant (incorporated by reference to
    Exhibit 21.1 to Clean Diesel&#146;s Annual Report on Form 10-K
    filed on March 31, 2011).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    23
</TD>
<TD nowrap align="left" valign="top">
    .1*
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Consent of KPMG LLP, Independent Registered Public Accounting
    Firm.
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    23
</TD>
<TD nowrap align="left" valign="top">
    .3
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Consent of Reed Smith LLP (included in Exhibit 5.1).
</TD>
</TR>
<TR valign="bottom">
<TD nowrap align="right" valign="top">
&nbsp;
</TD>
<TD nowrap align="right" valign="top">
    24
</TD>
<TD nowrap align="left" valign="top">
    .1
</TD>
<TD>
&nbsp;
</TD>
<TD align="left" valign="top">
    Powers of Attorney, included on signature page
</TD>
</TR>
</TABLE>

<DIV align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 0%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

</DIV>

<DIV style="margin-top: 6pt; font-size: 1pt">&nbsp;</DIV>

<DIV style="font-size: 1pt; margin-left: 0%; width: 13%;  align: left; border-bottom: 1pt solid #000000"></DIV>

<DIV style="margin-top: 3pt; font-size: 1pt">&nbsp;</DIV>



<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

<TR>
    <TD width="2%"></TD>
    <TD width="1%"></TD>
    <TD width="97%"></TD>
</TR>

<TR>
    <TD align="center" valign="top">
    * </TD>
    <TD></TD>
    <TD valign="bottom">
    Filed or furnished herewith</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="right" valign="top">
    ** </TD>
    <TD></TD>
    <TD valign="bottom">
    To be filed by amendment</TD>
</TR>


<TR style="line-height: 3pt; font-size: 1pt"><TD>&nbsp;</TD></TR>

<TR>
    <TD align="center" valign="top">
    &#134; </TD>
    <TD></TD>
    <TD valign="bottom">
    Indicates a management contract or compensatory plan or
    arrangement</TD>
</TR>

</TABLE>
<!-- XBRL Pagebreak Begin -->

<P align="left" style="font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent">

</DIV><!-- END PAGE WIDTH -->
</BODY>
</HTML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>2
<FILENAME>v59644exv23w1.htm
<DESCRIPTION>EX-23.1
<TEXT>
<HTML>
<HEAD>
<TITLE>exv23w1</TITLE>
</HEAD>
<BODY bgcolor="#FFFFFF">
<!-- PAGEBREAK -->
<DIV style="font-family: 'Times New Roman',Times,serif">


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


<DIV align="center" style="font-size: 10pt; margin-top: 28pt"><B>Consent of Independent Registered Public Accounting Firm</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt">The Board of Directors<BR>
Clean Diesel Technologies, Inc.:
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt">We consent to the use of our report dated March&nbsp;31, 2011, with respect to the consolidated balance
sheets of Clean Diesel Technologies, Inc. (the Company) as of December&nbsp;31, 2010 and 2009, and the
related consolidated statements of operations, stockholders&#146; equity and comprehensive loss, and
cash flows for the years then ended, incorporated herein by reference and to the reference to our
firm under the heading &#147;Experts&#148; in the prospectus.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt">Our report dated March&nbsp;31, 2011 contains an explanatory paragraph that states that the Company has
suffered recurring losses from operations and has an accumulated deficit that raise substantial
doubt about its ability to continue as a going concern. The consolidated financial statements do
not include any adjustments that might result from the outcome of that uncertainty.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt">&nbsp;

</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt">/s/ KPMG LLP<BR>
Los Angeles, California<BR>
June&nbsp;2, 2011

</DIV>


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




</BODY>
</HTML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>v59644v5964401.gif
<DESCRIPTION>GRAPHIC
<TEXT>
begin 644 v59644v5964401.gif
M1TE&.#EA<@%M`,0``(^ZTU>7O<?<Z2U]K/'V^3N&LEB8O=7E[JO+WDF.MW.H
MR(&QS66@PN/M]+G3XYW"V/___R!UIP``````````````````````````````
M`````````````````````````"'Y!```````+`````!R`6T```7_H!&-9&F>
M:*JN;.N^<"S/=&W?>*[OL\C_P*!P2"P:C\B8+\EL.I_0J-2XG%JOV*QVBZMR
MO^"P>#STDL_HM)IL7KO?\#BQ+:_;[W@4/<_O^]E_@8*#6GN$AXB).X:*C8Z/
M*HR0DY2)DI68F7R7FIV>;IR?HJ-@H:2GJ%*FJ:RM5*ZPL4^KLK6V2K>YNCFT
MN[ZZO4`)"@`"`@00R1`-`@R_SW+!.0,*#LC*V-@!(PD'#]O0X6/2-@$(V>C9
M`R,*R@0/!>+R6^0S#`?I`@`,`>L1[1`.D#B730"X>0BCU(.10$`V`@B<H2#X
MH$2`!PT*QDO(D<G"%@,>9&N@P%\*?!`D_YI(0%`9@(XP7Q7IAJW!01(#`@#P
M-T"9R1,#`%P+F""F42`?52@82F"!B0(+4$(@P2!9`Q(+!"S82**``W<*CHKE
M160!-@%<(P1P>):$2`@(2'Q-YN!F!`9#G8[=VV-(2PAZ1ZQ-]W($V[`CAB8S
M6&*`U+A\([M(:@*`NX,#YBH[ENR@,JX7,V)S\+,E9,FH]00!"(%`T1%XL2$H
MT#.9OP!649C#1D!EA):(4PL?05FPN]<1+&_>6#4@">6G3Q1@FZSPB):^ATLN
M/N":ZX'N?+^M.&)NX!2QDT6?2R"M=K[%-0=O><`]RN#7D*MPK.PT?P@"O(<:
M9<U!0-YORASPT_\(GW&3#`$PF$9"`M><)Z!82767C$#L;*9;;B.8!8$#,;04
MF(CM7;A74LI!\%H""2XX@G(D7I>,A2VTA!Q*T:D8TT<:0F`=2@3(:-B-)(BF
MGPO_-7!;@SX:]9%R1<ZHC%TE*/-:`<K00&%U)+#58Y0)?71-84$>>`)NR9``
M4(`TB`C!1FQ"8"29XBP$4)4(MG9G!#D%@%P!`03@7@RBG<86CBA4(YI6)AEC
M3!,%`&#II9;>1!V6/T@*)PDZ82HJ`)R^H("D2^IPJC'!V;#I%0O-!5F0UC%1
MYT8`7;7"?P^]ADT3=:)SP&NO$O%K"2VF(Z0-+99Z0XNUUE#L%/74YF+_B`_^
M681H:$*9`G7H5'EL$L&&&\^T0HQKI;)@UM!L$-#F@*Y".#2G:P0HJ=E$KG(A
MF0)K`0'PUTOJ)K#`/H>&FFE7A?8S``.D?I@@9_U%D$##)A5`C`*I*HREP0AG
MV26R[(*I,0`<ZW8P`UPU&^B@#4=P<G906;K5<R[A1`P`"RPYP,$+#'"QH!9C
MW!7$"F!Y,LJ'WE`/12-PF4S36)5L-;N(6?O:FRIHYN0(;SEW+$UG^9.`:#45
MU2("0REH0K#;#$`=A*]F-M*+:&_XHE2+^:.N"=1]&M)(*BV5#0+KK#T4G"T"
M['9RZ)`7[S^*`>B/X0\^&D&Q85LED=W9M-H%_PXH@2,BAUU?K7HVR,U5&(RM
MJ8#V@95>&L&O06;C-M^C0:ZLA7!WJ.6KO#]8U%!H!UA`Y1LR.#(*@?>;SC8%
M%N1[.F$EFXU3VBM34;S5M[6\L@&^^A<VSH2==ZHUU.-3><GH>P+SJ[,+8=4`
MDI!?"MA$*W*;+0%``4QT.ZL\S$/)$D#RWJ8-XUQI4ZQQ@,&441=E-*!2DNJ3
MD%BBC+#\K0314TN"H.(AM$5D*`E(X%"^=Y:A(&XHEL)&I7*&-@=@#@(!D!,!
M`""5\ET)=D0IT%6HPP])9<<&Y&`3ZJYQQ"8`,4R=X5_.I-BFY`F@A]P`P`,H
MEK^UB7`Q#+R2`SNS*?_Z&$.&([%A8C9S10H6L$W?\M#UF,'%.NEJ9P)L444*
M%"`]WF4S=>(0=J`EM66`S27`D9F'-M4B.@[%*P41(`_(P35`>2L*6CKDLE`@
ME1K]XU>@M)_<R'>]PL@15`V,0.>F\\"2<5!8;\Q'+%400LT0YI0DBV*=^BC&
M7=9)<BZ!UB['*#`QOM&'G>F>-KZ$#F?)@!S**4R=KE"Z=?E/D\DH"J\"]*O9
MC4I.`4/@%''YQ2B"<XA7THP#1A6/%'(1AS`4E0>?=X(0MD@?HA(B;"ZEDUZ*
M4Y>`3)"-D@$QEP!15]!JD03#ADP<WI.=@%(``OCFR=$QJUU*9,$6/<71CF[_
MI)#IJ&<R$".BBI8`I`%1S#P!V)^?2>I@%9,3+]M%SG*AXR40C-%:C($`.85%
M*@S03%RR8@RG?!"*8/SDA@@E*1*M,#T.]2<8W[5+:PD)G#,$DPEOF``@HJ.A
MA;)@`;R208&RYE,6K8'KL)6_%=0O=L)+!^JD)\VDH@"<UIOE^-(Q065!:'(U
M+1ED-L6K[8$47`7P*F_B<=0CV;5X8,*K0*GZ3QR6<Z:1*^4?9:E!Z[T*7-BH
MB&8.`,-%W(`MX%`.6M?TUD^=+[0GB*8#5VN"!3"/-,Z#(U0?%);"$@!M6=UD
M8-/1`.N\BFRPI=Q#$+/;UDBDL9L[Y2BS<:#NN8VR_U.5:EL[%[]U;?*&=#$)
M#\,)QKJ!%BY1*YY)G79:@JZ+MHUIF'SG&P"4#"E^]#W46^K:UOT0PP$(D"2H
M8D:52S'`)-2P5$F&9BA"%8I.A?(9?0VU$J,)YE(*2,O##/R3#5OJP`,NE`H8
MO*04*M@]"5Y8U(P6**(YN!^`:MB@#L8SKKR8*RD&P*":FA,W,M@D)J[Q2FA\
MLTFV][MVM8$QM>8"MA2F.?#%4Q@@FY(O0!.C#\+!-&&3Y2:[UW?RDW(8&O*0
M:\+J6=TM)PZ4@SH:O>`:J6V7F-%0`(B12EO4ND$EW^C,%LSE0$YFTONB"Y@Y
MRX,<L+L?OOQ5`R:2P)@LL/]7DJ)HZ'"X;VJ:7"]#!KWE%KQE5H.N]#/J<1@N
MVZ8&_&)KE$\@&N:"2-2CQD%)]3?2&A#D-&MM09W\<6M80Z,>B>9U\VC0:EI7
MV<]T,783?6V+A13;8I"&02&W%&H5%!(<!<(SLUVQ$!%]BBUS?4%S%`V0<*=@
M+O>2U;9_L1!K@:-.C%K!6SP)-1;422+77K<O/D(0USZ(:B=A]'U8,`#-#?1>
M^L[%1_(-J&N8VZV4MA;`X9?-J'4PX;M("D%05Z`QI:#3DEY!BP+#%H1CO-D[
M"%)@)-0"U>(,O4IQ8UR7?7)N\P!%.ZH8"P+MV'@K-2#^V.NJ:]Z*XJ#D<;SR
M^/__/%-Q%(0M12,@TL2)GHKB,-,_4JE/"H#X)+@^96[((2#5;U&<G_MG;HPZ
M'?[6:]L8@4<]8U=X$%B.30#9Y<]T+8$"\H9;M@(][F07`MW5DC>T3!H"^(DB
M5/+6E!+01]N`)T791Y!T!">+VIA69/R*-QN<:.8[D4>Y$*9+E),^X+=N>C7`
M#G<3Y&H]]*+WBSLL)+2WG^:UQ75/LAX'^UI,OK;8.$"I4!(8E`B@IX=B0-["
MW'N;&R$`A;<+DUUP*M[0O/FL^#U0N'L`E8R[!07`R.$@CWW),V&`;7EO"NHL
M_H+TN?Q5=\(`D6%<JQC#4I)B%P+>#__X0X$!R/%6`5%D:?T'#%<`259S``B0
M8048:UEP,7;V8433@'E"@0VH?19()AB8@3ZR@1QX(1[X@>\1@B(X'"18@JEQ
M@BBX'2L(>RK8@BL"@Y'W@C)X%#18@S^"@V-W@SK($3S8@PCQ@T!X:$-X<D)8
&A-`0`@`[
`
end
</TEXT>
</DOCUMENT>
</SUBMISSION>
