<SUBMISSION>
<ACCESSION-NUMBER>0000950123-11-031472
<TYPE>10-K
<PUBLIC-DOCUMENT-COUNT>8
<PERIOD>20101231
<FILING-DATE>20110331
<DATE-OF-FILING-DATE-CHANGE>20110331
<FILER>
<COMPANY-DATA>
<CONFORMED-NAME>CLEAN DIESEL TECHNOLOGIES INC
<CIK>0000949428
<ASSIGNED-SIC>2810
<IRS-NUMBER>061393453
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>10-K
<ACT>34
<FILE-NUMBER>001-33710
<FILM-NUMBER>11726314
</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>10-K
<SEQUENCE>1
<FILENAME>v59112e10vk.htm
<DESCRIPTION>FORM 10-K
<TEXT>
<HTML>
<HEAD>
<TITLE>e10vk</TITLE>
</HEAD>
<BODY bgcolor="#FFFFFF">
<!-- PAGEBREAK -->
<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>
<DIV style="font-family: 'Times New Roman',Times,serif">


<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 1pt solid black; font-size: 1pt">&nbsp;</DIV>




<DIV align="center" style="font-size: 14pt; margin-top: 12pt"><B>UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION</B>
</DIV>

<DIV align="center" style="font-size: 12pt"><B>Washington, D.C. 20549</B>
</DIV>

<DIV align="center" style="font-size: 18pt; margin-top: 12pt"><B>FORM 10-K</B>
</DIV>

<DIV align="center">
<TABLE cellspacing="0" border="0" cellpadding="0" width="100%" style="font-size: 12pt">
<TR style="font-size: 6pt">
    <TD width="7%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="88%">&nbsp;</TD>
</TR>
<TR valign="top">
    <TD align="center"><FONT face="Wingdings">&#254;</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><B>ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934</B></TD>
</TR>
</TABLE>
</DIV>
<!-- xbrl,dc -->
<DIV align="left" style="font-size: 10pt; margin-top: 12pt; margin-left: 12%"><B>For the fiscal year ended: </B><B>December&nbsp;31, 2010</B></div>
<!-- /xbrl,dc -->

<DIV align="center" style="font-size: 10pt; margin-top: 6pt"><B>or</B></DIV>

<DIV align="center">
<TABLE cellspacing="0" border="0" cellpadding="0" width="100%" style="font-size: 12pt">
<TR style="font-size: 6pt">
    <TD width="7%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="88%">&nbsp;</TD>
</TR>
<TR valign="top">
    <TD align="center"><FONT face="Wingdings">&#111;</FONT></TD>
    <TD>&nbsp;</TD>
    <TD><B>TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934</B></TD>
</TR>
</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt; margin-left: 12%"><B>For the transition period from <U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U> to </B><U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>Commission File No.: 001-33710</B></DIV>

<DIV align="center" style="font-size: 24pt; margin-top: 12pt"><B><FONT style="border-bottom: 1px solid #000000">CLEAN DIESEL TECHNOLOGIES, INC.</FONT></B>
</DIV>

<DIV align="center" style="font-size: 10pt">(Exact name of registrant as specified in its charter)</DIV>


<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="47%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="47%">&nbsp;</TD>
</TR>
<TR></TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top"><B>Delaware</B>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>06-1393453</B></TD>
</TR>
<TR style="font-size: 1px">
    <TD align="center" valign="top" style="border-top: 1px solid #000000">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">(State or other jurisdiction of <BR>
incorporation or organization
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">(I.R.S. Employer<BR>
Identification No.)</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>4567 Telephone Road, Suite&nbsp;206<BR>
Ventura, CA 93003</B><BR>
<DIV style="margin-top: 1px"><FONT style="border-top: 1px solid #000000">(Address of principal executive offices) (Zip Code)</FONT></DIV></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt">Registrant&#146;s telephone number, including area code: <B>(805)&nbsp;639-9458</B></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt">Securities registered pursuant to Section&nbsp;12(b):</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="47%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="47%">&nbsp;</TD>
</TR>
<TR></TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top">Title of each class
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Name of each exchange on which registered</TD>
</TR>
<TR style="font-size: 1px">
    <TD align="center" valign="top" style="border-top: 1px solid #000000">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">Common Stock, $0.01 par value
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">The NASDAQ Stock Market LLC</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt">Securities registered pursuant to Section&nbsp;12(g): None</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in rule 405 of
the Securities Act. Yes <FONT style="font-family: Wingdings">&#111;</FONT> No <FONT style="font-family: Wingdings">&#254;</FONT>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Indicate by check mark if the registrant is not required to file reports pursuant to Section&nbsp;13 or
Section 15(d) of the Act. Yes <FONT style="font-family: Wingdings">&#111;</FONT> No <FONT style="font-family: Wingdings">&#254;</FONT>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Indicate by check mark whether the registrant: (1)&nbsp;has filed all reports required to be filed by
Section&nbsp;13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12&nbsp;months (or for
such shorter period that the registrant was required to file such reports), and (2)&nbsp;has been
subject to such filing requirements for the past 90&nbsp;days. Yes <FONT style="font-family: Wingdings">&#254;</FONT> No <FONT style="font-family: Wingdings">&#111;</FONT>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Indicate by check mark whether the registrant has submitted electronically and posted on its
corporate Website, if any, every Interactive Data File required to be submitted and posted pursuant
to Rule&nbsp;405 of Regulation&nbsp;S-T during the preceding 12&nbsp;months (or for such shorter period that the
registrant was required to submit and post such files). Yes <FONT style="font-family: Wingdings">&#111;</FONT> No <FONT style="font-family: Wingdings">&#111;</FONT>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Indicate by check mark if disclosure of delinquent filers pursuant to Item&nbsp;405 of Regulation&nbsp;S-K is
not contained herein, and will not be contained, to the best of the registrant&#146;s knowledge, in
definitive proxy or information statements incorporated by reference in Part&nbsp;III of this Form 10-K
or any amendment to this Form 10-K. <FONT style="font-family: Wingdings">&#111;</FONT>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">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&nbsp;12b-2 of the Exchange Act.
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="22%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="22%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="22%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="22%">&nbsp;</TD>
</TR>
<TR></TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top"><FONT style="white-space: nowrap">Large Accelerated filer <FONT style="font-family: Wingdings">&#111;</FONT> </FONT>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><FONT style="white-space: nowrap">Accelerated filer <FONT style="font-family: Wingdings">&#111;</FONT> </FONT>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><FONT style="white-space: nowrap">Non-accelerated filer <FONT style="font-family: Wingdings">&#111;</FONT> </FONT>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><FONT style="white-space: nowrap">Smaller reporting company <FONT style="font-family: Wingdings">&#254;</FONT> </FONT></TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><FONT style="white-space: nowrap">(Do not check if a smaller reporting company)</FONT></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Indicate by check mark whether the registrant is a shell company (as defined in Rule&nbsp;12b-2 of the
Exchange Act). Yes <FONT style="font-family: Wingdings">&#111;</FONT> No <FONT style="font-family: Wingdings">&#254;</FONT>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">The aggregate market value of the common equity held by non-affiliates of the registrant on June
30, 2010 was $7,324,391 based on the number of shares held by non-affiliates of the registrant and
the reported last sale price of common stock on June&nbsp;30, 2010 ($6.48, after adjusting to reflect
the one-for-six reverse stock split of the registrant&#146;s common stock that took effect October&nbsp;15,
2010), which was the last business day of the registrant&#146;s most recently completed second fiscal quarter. This
calculation does not reflect a determination that persons are affiliates for any other purposes.
The registrant does not have non-voting common stock outstanding.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">As of March&nbsp;23, 2011, the outstanding number of shares of the registrant&#146;s common stock, par value
$0.01 per share, was 3,987,812.
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>Documents incorporated by reference:</B></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">The registrant has incorporated by reference in Part&nbsp;III of this report on Form 10-K portions of
its definitive Proxy Statement for the 2011 Annual Meeting of Stockholders to be filed with the
Securities and Exchange Commission within 120&nbsp;days after the end of the registrant&#146;s fiscal year.
</DIV>


<DIV style="width: 100%; border-bottom: 1pt solid black; margin-top: 10pt; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>









<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

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<P><HR noshade><P>
<H5 align="left" style="page-break-before:always">&nbsp;</H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">



<DIV align="left">
<!-- TOC -->
</DIV>
<DIV align="left">
<A name="V59112tocpage"></A>
</DIV>










<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B>
</DIV>


<DIV align="Center" style="font-size: 10pt; margin-top: 6pt"><B>Annual Report on Form&nbsp;10-K<BR>
For the Year Ended December&nbsp;31, 2010</B>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>Table of Contents</B>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="88%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR></TR>
<!-- End Table Head -->
<!-- Begin Table Body -->

<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#V59112101"><B>PART I</B></A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#V59112102">Item&nbsp;1. Business</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#V59112103">Item&nbsp;1A. Risk Factors</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">14</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#V59112104">Item&nbsp;1B. Unresolved Staff Comments</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">21</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#V59112105">Item&nbsp;2. Properties</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">21</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#V59112106">Item&nbsp;3. Legal Proceedings</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">22</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#V59112107">Item&nbsp;4. (Removed and reserved)</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">22</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#V59112108"><B>PART II</B></A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#V59112109">Item&nbsp;5. Market for Registrant&#146;s Common Equity, Related Stockholder Matters and
Issuer Purchases of Equity Securities</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">23</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#V59112110">Item&nbsp;6. Selected Financial Data</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">24</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#V59112111">Item&nbsp;7. Management&#146;s Discussion and Analysis of Financial Condition and Results
of Operations</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">25</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#V59112112">Item&nbsp;7A. Quantitative and Qualitative Disclosures about Market Risk</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">44</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#V59112113">Item&nbsp;8. Financial Statements and Supplementary Data</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">44</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#V59112114">Item&nbsp;9. Changes in and Disagreements with Accountants on Accounting and
Financial Disclosure</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">44</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#V59112115">Item&nbsp;9A. Controls and Procedures</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">44</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#V59112116">Item&nbsp;9B. Other Information</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">46</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#V59112117"><B>PART III</B></A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#V59112118">Item&nbsp;10. Directors, Executive Officers and Corporate Governance</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">47</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#V59112119">Item&nbsp;11. Executive Compensation</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">47</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#V59112120">Item&nbsp;12. Security Ownership of Certain Beneficial Owners and Management and
Related Stockholder Matters</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">47</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#V59112121">Item&nbsp;13. Certain Relationships and Related Transactions, and Director Independence</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">47</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#V59112122">Item&nbsp;14. Principal Accounting Fees and Services</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">47</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#V59112123"><B>PART IV</B></A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#V59112124">Item&nbsp;15. Exhibits, Financial Statement Schedules</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">48</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#V59112125"><B>SIGNATURES</B></A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
<TR><TD colspan="9"><FONT size="2">&nbsp;<A HREF="v59112exv10w2.htm">Ex-10.2</A></FONT></TD></TR>
<TR><TD colspan="9"><FONT size="2">&nbsp;<A HREF="v59112exv10w4.htm">Ex-10.4</A></FONT></TD></TR>
<TR><TD colspan="9"><FONT size="2">&nbsp;<A HREF="v59112exv21.htm">EX-21</A></FONT></TD></TR>
<TR><TD colspan="9"><FONT size="2">&nbsp;<A HREF="v59112exv23.htm">EX-23</A></FONT></TD></TR>
<TR><TD colspan="9"><FONT size="2">&nbsp;<A HREF="v59112exv31w1.htm">EX-31.1</A></FONT></TD></TR>
<TR><TD colspan="9"><FONT size="2">&nbsp;<A HREF="v59112exv31w2.htm">EX-31.2</A></FONT></TD></TR>
<TR><TD colspan="9"><FONT size="2">&nbsp;<A HREF="v59112exv32.htm">EX-32</A></FONT></TD></TR>
</TABLE>
</DIV>



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


<P align="center" style="font-size: 10pt"><!-- Folio -->i<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">


<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CAUTIONARY STATEMENT CONCERNING FORWARD-LOOKING STATEMENTS</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This Annual Report on Form 10-K contains forward-looking statements that involve risks
and uncertainties, as well as assumptions, that could cause our results to differ materially from
those expressed or implied by such forward-looking statements. Forward-looking statements generally
are identified by the words &#147;may,&#148; &#147;will,&#148; &#147;project,&#148; &#147;might,&#148; &#147;expects,&#148; &#147;anticipates,&#148;
&#147;believes,&#148; &#147;intends,&#148; &#147;estimates,&#148; &#147;should,&#148; &#147;could,&#148; &#147;would,&#148; &#147;strategy,&#148; &#147;plan,&#148; &#147;continue,&#148;
&#147;pursue,&#148; or the negative of these words or other words or expressions of similar meaning. All
statements, other than statements of historical fact, are statements that could be deemed
forward-looking statements. These forward-looking statements are based on information available to
us, are current only as of the date on which the statements are made, and are subject to numerous
risks and uncertainties that could cause our actual results, performance, prospects or
opportunities to differ materially from those expressed in, or implied by, the forward-looking
statements we make in this Annual Report on Form 10-K. The discussion in the section &#147;Risk
Factors&#148; highlights some of the more important risks identified by management but should not be
assumed to be the only factors that could affect our future performance. Additional risk factors
may be described from time to time in our future filings with the Securities and Exchange
Commission. Accordingly, all forward-looking statements should be evaluated with the understanding
of their inherent uncertainty. You should not place undue reliance on any forward-looking
statements. Risk factors are difficult to predict, contain material uncertainties that may affect
actual results and may be beyond our control. Except as otherwise required by federal securities
laws, we undertake no obligation to publicly update or revise any forward-looking statements,
whether as a result of new information, future events, changed circumstances or any other reason.
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>HELPFUL INFORMATION</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;As used throughout this Annual Report on Form 10-K, unless the context otherwise requires,
&#147;CDTI&#148; means Clean Diesel Technologies, Inc. and its consolidated subsidiaries on stand-alone basis
prior to the October&nbsp;15, 2010 business combination with CSI. 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 as of the date of this Annual Report on Form
10-K, including CSI.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On October&nbsp;15, 2010, prior to the Merger, we effected a one-for-six reverse stock split of our
common stock. When we refer to our shares of common stock on a &#147;post-split&#148; basis, it means after
giving effect to the one-for-six reverse stock split.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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 in our financial statements effective from October&nbsp;15, 2010, the date of the closing of
the Merger.
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>TRADEMARKS</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Clean Diesel Technologies name with logo, CDT logo, CSI<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>, CATALYTIC
SOLUTIONS<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>, CSI logo, ARIS<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>,
BARETRAP<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>, CATTRAP<SUP style="FONT-size: 85%; vertical-align: text-top"> <SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP></SUP>,
COMBICLEAN<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>, COMBIFILTER<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>, MPC<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>,
PATFLUID<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>, PLATINUM PLUS<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>, PURIFIER and design,
PURIFILTER<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>, PURIMUFFLER<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>,
TERMINOX<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> and UNIKAT<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>, among others, are registered or
unregistered trademarks of Clean Diesel (including its subsidiaries).
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->ii<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="left">
<A name="V59112101"></A>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>PART I</B>
</DIV>

<DIV align="left">
<A name="V59112102"></A>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>ITEM 1. BUSINESS</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt"><B>Overview</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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&nbsp;1995. Since
inception, and as set forth below, we have developed a substantial portfolio of patents and related
proprietary rights and extensive technological know-how.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On October&nbsp;15, 2010, our wholly-owned subsidiary, CDTI Merger Sub, Inc., merged with and into
Catalytic Solutions, Inc. We refer to this transaction as the
&#147;Merger.&#148; On October&nbsp;15, 2010, prior
to the Merger, we also effected a one-for-six reverse stock split. When we refer to our shares of
common stock on  a &#147;post-split&#148; basis, it means after giving effect to the one-for-six 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&nbsp;15, 2010, the date of the closing of the Merger.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;CSI is a California corporation formed in 1996, has over 30&nbsp;years of experience in the heavy
duty diesel systems market through its Heavy Duty Diesel Systems division and has proven technical
and manufacturing competence in the light duty vehicle catalyst market meeting auto makers&#146; most
stringent requirements. CSI&#146;s Catalyst division has supplied over 10&nbsp;million catalyst parts to
light duty vehicle customers since 1996. From November&nbsp;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 align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Following the Merger, we are now a vertically integrated global manufacturer and distributor
of emissions control systems and products, focused in the heavy duty diesel and light duty vehicle
markets. As a cleantech company, we utilize our proprietary patented Mixed Phase Catalyst
(MPC<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>) technology, as well as our ARIS<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> selective
catalytic reduction, Platinum Plus<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> Fuel-Borne Catalyst (FBC), and other
technologies to provide high-value sustainable solutions to reduce emissions and lower the carbon
intensity of on- and off-road engine applications. We, along with our wholly-owned subsidiary CSI,
are now headquartered in Ventura, California and currently have operations in the United States,
Canada, the United Kingdom, France, Japan and Sweden as well as an Asian joint venture.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The following discussion of our business has been restated to reflect our operations following
the closing of the Merger.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Our Divisions</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In light of the Merger, we now organize our operations in two business divisions:
a Heavy Duty Diesel Systems division and a Catalyst division.
We have included all of the operations of CDTI in our Heavy Duty Diesel Systems division.
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD><U><I>Heavy Duty Diesel Systems</I></U>: Our Heavy Duty Diesel Systems division is a leading
environmental business specializing in the design and manufacture of verified exhaust
emissions control solutions. Globally, our Heavy Duty Diesel Systems division offers a full
range of products for the verified retrofit and OEM markets through our distribution/dealer
network and direct sales. These Engine Control Systems (&#147;ECS&#148;) and Clean Diesel
Technologies-branded products, such as Purifilter<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>, Purifier and
ARIS<SUP style="FONT-size: 85%; vertical-align: text-top"><SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> </SUP>and exhaust gas recirculation with selective catalytic
reduction are used to reduce exhaust emissions created by on-road, off-road and stationary
diesel and alternative fuel engines including propane and natural gas. We will continue to
promote our Platinum Plus<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> range of fuel-borne catalyst solutions to
global markets.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD><U><I>Catalyst</I></U>: Our Catalyst division houses our proprietary
MPC<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> technology. This technology enables us to produce catalyst
formulations for gasoline, diesel and natural gas induced emissions that offer superior
performance, proven durability and cost effectiveness for multiple markets and a wide range
of applications. Using our proprietary MPC<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> technology, we have
developed a family of unique high-</TD>
</TR>

</TABLE>
</DIV>
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<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>performance catalysts &#151; with base-metals or low platinum group metal and zero-platinum
group metal content &#151; to provide increased catalytic performance and value for
technology-driven automotive industry customers and for our Heavy Duty Diesel Systems
division.</TD>
</TR>

</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Financial information about our divisions can be found in Management&#146;s Discussion and Analysis
of Financial Condition and Results of Operations and in Note 20 to our consolidated financial
statements included elsewhere in this Annual Report on Form 10-K.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Market Overview</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Governments around the world have adopted tighter emission standards related to nitrogen oxide
and particulate matter from diesel-powered vehicles and various regulatory programs have been put
in place to address the millions of diesel engines already in use.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;According to the U.S. Environmental Protection Agency, or EPA, reducing emissions from diesel
engines is one of the most important air quality challenges facing the country today. The EPA
established the National Clean Diesel Campaign to promote diesel emission reduction strategies. The
National Clean Diesel Campaign includes regulatory programs to address new diesel engines as well
as innovative programs to address the millions of diesel engines already in use. Diesel engines
power the movement of goods across the nation, help construct buildings, help build roads, and
carry millions of children to school each day. While diesel engines provide mobility and are
critical to the nation&#146;s economy, exhaust from diesel engines contains pollutants that negatively
impact human health and the environment. Diesel engines emit large amounts of nitrogen oxide,
particulate matter and air toxics, which contribute to serious public health problems. The EPA
estimates that more than 20&nbsp;million diesel engines in operation today do not meet the new clean
diesel standards, yet the engines can continue to operate for 20 to 30&nbsp;years.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Current techniques for diesel engines to meet emissions standards require the use of several
methods, including diesel oxidation catalysts, catalyzed diesel particulate filters and selective
catalytic reduction systems.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Similar standards have been adopted worldwide to regulate the emissions of nitrogen oxide,
particulate matter, carbon monoxide and carbon dioxide from motor vehicles. In the United States,
emissions standards are managed by the EPA. The State of California has special dispensation to
promulgate more stringent vehicle emissions standards, and other states may choose to follow either
the national or California standards.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;According to a 2005 EPA study, the largest emission of nitrogen oxide came from on-road motor
vehicles, with the second largest contributor being non-road equipment (which is mostly gasoline
and diesel engines). The study also lists on-road vehicles as the second largest source of volatile
organic compounds at 26%, with and 19% from non-road equipment. According to the same study,
on-road vehicles were responsible for 60% of carbon monoxide emissions and motor vehicle use is
increasing. Nationwide, three-quarters of carbon monoxide emissions come from on-road motor
vehicles (cars and trucks) and non-road engines (such as boats and construction equipment). Control
measures have reduced pollutant emissions per vehicle over the past 20&nbsp;years, but the number of
cars and trucks on the road and the miles they are driven have doubled in the past 20&nbsp;years.
Vehicles are now driven two trillion miles each year in the United States. With more and more cars
traveling more and more miles, growth in vehicle travel may eventually offset progress in vehicle
emissions controls.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Emission control catalysts eliminate dangerous engine pollutants from a range of fuels,
including gasoline, diesel, natural gas and alternative fuels. Our target markets include:
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD><U><I>Diesel</I></U>: U.S. and European legislation requiring significant reduction in
particulate matter and nitrogen oxide emissions from on-road and off-road diesel vehicles
is expected to be phased in through 2015. This provides an opportunity for growth for both
our diesel retrofit systems and catalyst products. Catalysts using traditional technology
will require high loadings of platinum group metals to comply with these standards, and
diesel engine manufacturers are very concerned about the high price of these units. Our low
platinum group metals catalysts are able to effectively address this concern.
Additionally, fleet owners and operators complying with existing on-road legislation and
regulations will be looking for more cost-effective suppliers for existing retrofit
technology applications as well as potential expansion into urea-based selective catalytic
reduction technologies. Our portfolio of California Air Resources Board, or CARB, and EPA
verified products provides effective solutions to address this need. This growing market is</TD>
</TR>

</TABLE>
</DIV>
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<DIV style="margin-top: 6pt"><TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">


<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>highly driven by increasingly stringent worldwide regulatory standards and is sometimes
funded by both public and private sources for early, voluntary compliance.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD><U><I>Automotive</I></U>: Since 2005, 100% of new cars sold in the United States and over 90%
of all new cars sold worldwide have been equipped with a catalytic converter as the
principal means of meeting emissions standards (Manufacturers of Emissions Controls
Association, Clean Air Facts, The Catalytic Converter: Technology for Clean Air). The
regulations controlling auto emissions in countries throughout the world have become
increasingly restrictive and will continue to tighten in the future.</TD>
</TR>

</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our catalyst and heavy duty diesel systems, which utilize our proprietary
MPC<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>, Platinum Plus<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>, ARIS<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> and
exhaust gas recirculation with selective catalytic reduction technologies, provide customers with
high value-added, cost-effective and efficient emission control systems. We are a
vertically-integrated provider of emission control systems whose customers benefit from purchasing
systems where the embedded catalyst technology is optimized for system performance.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Competitive Advantages</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Traditional automotive catalytic coating technologies currently utilize high loadings of
platinum group metals &#151; platinum, palladium and rhodium &#151; to satisfy performance requirements
mandated by governmental regulations, resulting in high costs to the automotive OEMs. Platinum
group metals have become increasingly expensive over the past 15&nbsp;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. Our technology offers performance equal to
or exceeding that of competing catalytic coatings with a significant reduction in platinum group
metal loadings. In addition, increasingly stringent emission standards for diesel engines and gas
turbines continue to drive demand for superior catalytic solutions in the diesel and energy
markets.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our proprietary patented MPC<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> technology was developed in response to
the need for a more cost-effective solution for automotive catalytic converters as emission
standards around the world continue to tighten.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Platinum Plus<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>, our fuel-borne catalyst technology, along with our
Purifier technology provide unique catalyst performance in urban and space-constrained
applications while enabling cost-efficient emission reduction capability in the often challenging
high sulfur fuel environment, prevalent in developing regions of the world.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In addition, our ARIS<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> urea injection technology, exhaust gas
recirculation with selective catalytic reduction technology and patent coverage continues to
proliferate within the selective catalytic reduction market through our licensees as global
emission standards tighten.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We believe that our technologies and products represent a fundamentally different emissions
control portfolio of solutions, which delivers the following key benefits:
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD><U>Broad Portfolio of Verified Heavy Duty Diesel Systems</U>: We offer one of the
industry&#146;s most comprehensive portfolios of system products that have been evaluated and
verified (approved)&nbsp;by the EPA and CARB for use in engine retrofit programs, as well as in
several European countries. Additionally, we have a thorough understanding of the
verification process and the demonstrated ability to get products broadly verified
specifically for the retrofit market.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD><U>Superior Catalyst Performance</U>: 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>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD><U>Cost Advantage</U>: 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</TD>
</TR>

</TABLE>
</DIV>
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<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>equal to or exceeding that of competing catalytic coatings with a 30% &#151; 80% reduction in
platinum group metal loadings.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD><U>Wide Range of Applications</U>: 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 the OEM, aftermarket and retrofit markets, and for completely
different applications in the energy sector, such as selective catalyst reduction nitrogen
oxide control for industrial and utility boilers, process heaters, gas turbines and
generator sets. We believe that our portfolio of technologies are applicable to all
existing diesel engines, all new engines designed to meet upcoming emission standards and
all types of fuel, including biodiesel and ultra-low sulfur diesel. We offer a full range
of EPA and CARB verified heavy duty diesel emission control products.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD><U>Proven Durability</U>: 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.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD><U>Compatibility with Existing Manufacturing Infrastructure and Operating
Specifications</U>: Catalytic converters using our catalysts 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>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Strategy</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our strategy is to grow a diversified, vertically integrated emissions control business. We
are focused on certain segments that will benefit most from our unique catalyst technology and
strengths in the heavy duty diesel systems space. 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, the catalyst technology has been proven to provide benefit outside the traditional light
duty vehicle and gasoline markets such as the heavy duty diesel markets. Our Heavy Duty Diesel
Systems division has a proven track record spanning several decades and has one of the broadest
ranges of EPA and CARB verified emission systems and products. Vertical integration enables us to
offer systems products incorporating customized catalysts. This ability is unique in the emission
control industry.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<I>Vertical Integration</I>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We believe that our strategy of vertical integration provides several advantages in each of
our divisions. These advantages include reduced manufacturing and delivery times, lower costs,
direct sourcing of raw materials and quality control. We also believe that it offers significant
added value to our customers by providing a full range of vertically-integrated services 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.
We believe that our vertical integration differentiates us from many of our competitors and
provides value to our customers who can rely on us to be an integrated supplier. In addition, we
believe that our ability to supply our own manufactured catalyst products to our Heavy Duty Diesel
Systems division will help improve gross margins. We intend to continue to leverage our vertically
integrated services to create greater value for our customers in the design and manufacture of our
products.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<I>Capitalize on growing market for heavy duty diesel systems</I>
</DIV>

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<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our Heavy Duty Diesel Systems division operates in a market that is expected to grow
substantially over the next decade as new emission 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. For example, we see renewed commitment for on-road diesel
emission reductions from state governments, such as California, where it has mandated that all 1996
through 2006 Class&nbsp;7 and 8 diesel trucks be retrofit with diesel particulate filters (if not so
equipped) to meet state emission standards between 2012 and 2014. In addition, governments outside
of the United States are taking steps to address emission reductions, as evidenced by the more than
160 low emission zones (&#147;LEZ&#148;) in operation throughout Europe, with others being planned in Europe
and Asia. We believe that the London LEZ regulations will require an estimated 20,000 heavy duty
diesel vehicles entering the LEZ to meet certain emission standards by January&nbsp;2012. This has
resulted in an extensive retrofit program being undertaken in 2011, which follows a smaller-scale
program implemented in 2008. We believe we were the second largest supplier in the 2008 program
having earned a market share of approximately 14% of all retrofit systems sold. With a broad array
of existing products, new products in the pipeline and with the benefit of our catalyst
technology, we expect to benefit from this market growth.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<I>Focused growth of catalyst business</I>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our Catalyst division is focused on gaining more business from existing light duty vehicle
customers and selectively acquiring new customers who value the benefits of our technology. In
addition, this division will increase its presence in the growing off-road and on-road heavy duty
diesel catalyst markets through organic growth and key partnerships. The development and production
of catalysts to supply the Heavy Duty Diesel Systems division is a top priority.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<I>Partnerships and Acquisitions</I>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our Heavy Duty Diesel Systems division has been strengthened through the expansion of our
North American distribution channel and through partnerships with major companies operating in the
on-road heavy duty diesel markets. We may selectively enter new partnerships to acquire new
technologies or distribution capabilities. In addition, given the fragmented nature of this
industry, we expect to target complementary businesses for acquisition.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our Catalyst division participates in a joint venture in Asia (described below under &#147;&#151;Sales
and Marketing&#151;Asian Joint Venture). This division will continue to seek partnerships that may
encompass technology sharing, manufacturing or distribution, in order to expand presence in the
heavy duty diesel on-road and off-road markets. Opportunities to monetize our intellectual property
estate outside these areas may be pursued through sale and licensing or through partnerships to
maximize the return on our investment.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Technology</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our MPC<SUP style="FONT-size: 85%; vertical-align: text-top"><SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> </SUP>and Platinum Plus<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> fuel-borne catalyst
technologies, system design and packaging know-how are at the core of our business.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We have developed and patented intellectual property rights to a novel technology for creating
and manufacturing catalysts known as mixed phase catalyst (MPC<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>). This
technology involves the self-assembly of a ceramic oxide matrix with catalytic metals precisely
positioned within three-dimensional structures. The MPC<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> design gives our
catalyst products two critical attributes that differentiate them from competing offerings:
superior stability that allows heat, resistance and high performance with very low levels of
precious metals; and base metal activation allows base metals to be used instead of costly platinum
group metals without compromising catalytic performance.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We have developed and patented our Platinum Plus<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> fuel-borne catalyst as
a diesel fuel soluble additive, which contains minute amounts of organo-metallic platinum and
cerium catalysts. Platinum Plus<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> is used to improve combustion which acts to reduce emissions and
improve the performance and reliability of emission control equipment. Platinum
Plus<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> fuel-borne catalyst takes catalytic action into engine cylinders where
it improves combustion, thereby reducing particulates, unburned hydrocarbons and carbon monoxide
emissions. Thus, Platinum Plus<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> fuel-borne catalyst lends itself to a wide
range of enabling solutions including diesel particulate filtration, low emission biodiesel, carbon
reduction and exhaust emission reduction. Environmentally conscious corporations and fleets can
utilize this solution to voluntarily reduce emissions. In addition to these technologies, we have
strong
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">patent positions in urea injection (ARIS<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>) and exhaust gas recirculation with
selective catalytic reduction technologies. The integration of core technologies and design into
cost-effective, robust emission control systems is also a core competency.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We protect our proprietary technologies, along with our other intellectual property, through
the use of patents, trade secrets and registered and common law trademarks. See &#147;&#151; Intellectual
Property&#148; below.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Products</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B><I>Heavy Duty Diesel Systems Division</I></B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our Heavy Duty Diesel Systems division offers a full range of products globally for OEM,
occupational health driven and verified retrofit markets for the reduction of exhaust emissions of
on-road, off-road and stationary diesel and alternative fuel engines including propane and natural
gas. These division products include closed crankcase ventilation systems, diesel oxidation
catalysts, diesel particulate filters, alternative fuel products and exhaust accessories.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U>Closed Crankcase Ventilation Systems</U>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Contaminated crankcase emissions are a serious problem for diesel engine owners and the
environment. These emissions are a result of gas escaping past the piston rings due to high
cylinder pressure into the crankcase. In the crankcase, these gases are contaminated with oil,
mist, water, etc. These contaminated emissions escape through the engine breather into the engine
compartment and the engine intake system or into the environment in general. Closed crankcase
ventilation systems assist in elevating the level of exhaust emission reduction by eliminating
crankcase emissions.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In combination with select emission control solutions, our ECS-branded verified closed
crankcase ventilation system elevates the level of exhaust emission reduction by eliminating
crankcase emissions. Unlike exhaust emissions, crankcase gases normally escape into the environment
through the crankcase vent tube. Our closed crankcase ventilation system is a truly closed
crankcase ventilation system that effectively eliminates 100% of crankcase emissions at all times.
The system is designed to improve passenger compartment air quality, which is particularly
important in all types of buses (school, shuttle, urban, etc.), as well as refuse and municipal
fleets, while improving air quality for personnel working in the vicinity of an operating piece of
equipment. In addition, the system increases efficiency by reducing fouling in the engine
compartment of charge air coolers, radiators, etc. Closed crankcase ventilation systems have been
proven by the EPA to reduce pollutants released from closed crankcases when combined with a diesel
oxidation catalyst, by up to 40%. When paired with a diesel oxidation catalyst, our closed
crankcase ventilation systems can lead to a cleaner engine environment, improve vehicle and
equipment reliability with less need for maintenance, keep the engine compartment as well as
components cleaner, and, reduce the use of oil and lower vehicle operating costs. The ECS-branded
line of closed crankcase ventilation systems are EPA verified, helping customers not only lower
emissions, but lower operating costs as well.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U>Diesel Oxidation Catalysts</U>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A diesel oxidation catalyst is a device that utilizes a chemical process in order to break
down pollutants from diesel engines in the exhaust stream, turning them into less harmful
components. They are normally a honeycomb shaped configuration coated in a catalyst designed to
trigger a chemical reaction to reduce particulate matter. A diesel oxidation catalyst is an
excellent example of a device that can be utilized to upgrade a diesel engine or &#147;retrofit&#148; it in
order to pollute less. Diesel oxidation catalysts typically reduce emissions of particulate matter
by 20% to 40% or more.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We have two verified diesel oxidation catalysts: the AZ Purifier and
Purimuffler<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>. When combined with our ECS-branded closed crankcase ventilation
system, these diesel oxidation catalysts increase EPA verified particulate matter reduction to 40%
for most 1991 to 2004 medium and heavy duty on-road engine applications. We also offer ECS-branded
DZ and EZ Purifier diesel oxidation catalysts supported on a metallic substrate, which affords
exceptionally low exhaust restriction and resistance to vibration. Our DZ series of diesel
oxidation catalysts were the first in the industry to feature quick release band clamps. This allows the center body to be readily removed for periodic
engine-out opacity measurements or for purifier cleaning. The DZ Purifier is also available with
modular
</DIV>


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<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">add-on DMS and DMXS silencers. The EZ Purifier offers the same metallic substrate based
catalyst as the DZ Purifier but in an all-welded purifier to afford the most compact size and lower
cost.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U>Diesel Particulate Filters</U>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A diesel particulate filter is a device designed to remove diesel particulate matter, or soot,
from the exhaust of diesel engines. Diesel particulate filters typically remove more than 85% to
90% of the soot found in diesel emissions. Diesel-powered vehicles that are equipped with a diesel
particulate filter emit no visible black carbon emissions from the exhaust pipe and are far less
harmful to the environment and the general health of people in the vicinity. Diesel particulate
filter systems can employ catalyst systems to passively oxidize accumulated soot as well as active
regeneration strategies where external energy sources are employed to initiate thermal oxidation.
We market both passively and actively regenerating diesel particulate filters under the
Purifilter<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>, Combifilter<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>,
Purifilter<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> Plus, Purifier and Cattrap<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> brand names.
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Purifilter<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> was the first passively regenerating diesel
particulate filter to attain an industry-leading 90% particulate matter emissions reduction
credit value. We believe our Purifilter<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> is more efficient than
competing products as it is manufactured with silicon carbide substrates, which offer
superior filtration and durability compared to other diesel particulate filter materials.
The Purifilter<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> employs a base and precious metal catalyst
impregnated onto the silicon carbide diesel particulate filter surface to passively oxidize
accumulated particulate while complying with stringent CARB limits on nitrogen dioxide
emissions.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Combifilter<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> is an actively regenerated diesel particulate filter
system that typically removes over 90% of particulate matter while reducing nitrogen
dioxide emissions. The system is comprised of electric heating elements integrated with a
diesel particulate filter and silencer assembly. Periodically the system is plugged into an
off-board regeneration control panel or station to energize the electric elements when the
engine is not in service. Unlike passively regenerating diesel particulate filters that
rely on minimum exhaust temperature conditions to initiate the catalytic oxidation of
accumulated soot, Combifilter<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> equipped engines are simply plugged in
when not in service to heat the filter to a temperature where oxygen can directly oxidize
the soot.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Purifilter<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> Plus combines the benefits of
Combifilter&#146;s<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> active regeneration with
Purifilter&#146;s<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> passive operation to provide the combined benefits of
both products. Purifilter<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> Plus employs a passive
Purifilter<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> diesel particulate filter to allow extended periods of
passive operation with periodic active regeneration (i.e., weekly, biweekly, every
preventative maintenance, etc.). This combination increases
Purifilter<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> tolerance of colder duty cycle variations and provides a
proactive fleet management tool that improves vehicle uptime and insures low backpressure
and fuel economy. Periodic active regeneration via connection to a common off-board
regeneration station allows on-board filter service that virtually eliminates the need to
remove a diesel particulate filter except for de-ashing at 1,500 engine hour intervals. We
believe that Purifilter<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> Plus is the perfect solution for high
utilization fleets (i.e., cargo handling at ports) or rental construction fleets who need a
quick way to insure the condition of diesel particulate filters installed on rental
equipment to a wide variety of customers with different equipment uses.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Purifier e4 and e3 technologies integrate our Platinum Plus<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>
fuel-borne catalyst technology into passive particulate reduction systems for demanding
applications such as high sulfur or urban environments. Successfully implemented in London
for the initial stages of London&#146;s LEZ, we anticipate further customer acceptance of these
products with the introduction of Phase 3 and 4 of London&#146;s LEZ and the expected increased
demand for low emission zone technology elsewhere in Europe and Asia.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Cattrap<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> is a passively regenerating diesel particulate filter designed
specifically for mining and other heavy industrial applications. Cattrap<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>
employs an advanced base metal soot ignition catalyst system that eliminates diesel
particulate emissions in excess of 85%, while actually reducing toxic nitrogen dioxide
emissions. Because it is listed on the U.S. Mine Safety Health Administration (MSHA)&nbsp;Table
2 List of Diesel Particulate Matter Control Technologies, our ECS-branded
Cattrap<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> can be employed in mining environments where most other
diesel particulate filters cannot.</TD>
</TR>





</TABLE>
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<DIV style="margin-top: 6pt"><TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">



</TABLE>
</DIV>
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U>Platinum Plus&#174; Fuel-Borne Catalyst</U>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Platinum Plus<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> is a patented fuel-borne catalyst that can be used alone
with all diesel fuels, including regular sulfur diesel, ultra-low sulfur diesel, arctic diesel
(kerosene)&nbsp;and biodiesel fuel blends; to reduce particulate emissions by 10% to 25% from the
engine, while also improving the performance of diesel oxidation catalysts and particulate
filters. It can be used alone or in synergistic combination with our MPC<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>
technology. Platinum Plus<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> fuel-borne catalyst is increasingly utilized as
a diesel particulate filter regeneration additive. In Europe, it is currently being supplied into
the U.K., Germany, Denmark, Belgium, Switzerland, Sweden, Austria and Holland markets through
distribution sources for aftermarket retrofit applications, as well as in the U.K. to alleviate
soot blocking from light drive cycle bus applications. In Asia, we are conducting field trials
and developing relationships with Asian distributors to fully exploit this growing market.
Because it is listed on the MSHA Table 2 List of Diesel Particulate Matter Control Technologies,
our Platinum Plus<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> has been successfully used as a regeneration aid for
vehicles fitted with lightly catalyzed diesel particulate filters in mining environments.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U>ARIS&#174; Selective Catalytic Reduction</U>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The ARIS<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> (Advanced Reagent Injection System) is our patented airless,
return-flow system for the injection of reducing reagents for such applications as the low-nitrogen
oxide trap, active diesel particulate filter regeneration, and selective catalytic reduction. To
date, the ARIS<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> system has been primarily used in conjunction with
selective catalytic reduction for both stationary diesel engines for power generation and mobile
diesel engines used in transportation. The ARIS<SUP style="FONT-size: 85%; vertical-align: text-top"><SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> </SUP>system is comprised of our
patented single fluid computer-controlled injector that provides precise injection of nontoxic
urea-based reagents into the exhaust of a stationary or mobile engine, where the system then
converts harmful nitrogen oxides across a catalyst to harmless nitrogen and water vapor. Our
ARIS<SUP style="FONT-size: 85%; vertical-align: text-top"><SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> </SUP> system has shown reduction of nitrogen oxides of up to 90% on a
steady-state operation and of up to 85% in transient operations. A principal advantage of our
patented ARIS<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> system is that compressed air is not required to operate the
system and that a single fluid is used for both nitrogen oxides reduction and injector cooling. It
is designed for high-volume production and is compact, with very few components, making it
inherently cheaper to manufacture, install and operate than the compressed air systems, initially
developed for heavy duty engines. Our ARIS<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> technology is applicable for
reduction of nitrogen oxides from all combustion engine types, ranging from passenger car and light
duty to large scale reciprocating and turbine engines, including those using gaseous fuels such as
liquefied petroleum gas and compressed natural gas.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U>Combined Use of Exhaust Gas Recirculation and Selective Catalytic Reduction</U>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We believe as legislation tightens across the globe, exhaust gas recirculation in combination
with selective catalytic reduction is a key solution to meet strict nitrogen oxide levels. Exhaust
gas recirculation can be activated to reduce nitrogen oxide when starting a cold engine, whereas
selective catalytic reduction operates at higher temperature when its catalyst is fully active, and
at low exhaust gas recirculation rates. With both exhaust gas recirculation and selective
catalytic reduction in place, engine systems can be fine-tuned to optimize fuel efficiency together
with emissions reduction. We have intellectual property holdings for the design and implementation
of these combination systems and have licensed these patents to several industry providers.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U>Catalyzed Wire Mesh Diesel Particulate Filter</U>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The catalyzed wire mesh filter technology was initially developed by Mitsui Co., Ltd. for use
in conjunction with our Platinum Plus<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> fuel-borne catalyst as a lower cost
and reliable alternative to the traditional heavily catalyzed filter systems. It also provides
lower nitrogen dioxide emissions levels relative to traditional, heavily catalyzed filter systems.
The catalyzed wire mesh filter technology was transferred to us under a technology transfer
agreement with Mitsui and PUREarth in 2005. Under the agreement, we acquired the worldwide title
(excluding Japan) to the patents and other intellectual properties. The catalyzed wire mesh filter
technology is designed for use in a wide range of diesel engine particulate emission control
applications. The catalyzed wire mesh filter technology is a durable, low-cost filter designed to
bridge the gap between low efficiency diesel oxidation catalysts and expensive, heavily catalyzed
wall-flow particulate filters. The wire mesh filter system is designed to work synergistically
with a fuel-borne catalyst for reliable performance on a wide range of engines and with a broad
range of fuels. Commercial systems of Platinum Plus<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> fuel-borne catalyst
with this durable catalyzed wire mesh filter have demonstrated performance in buses, delivery
vehicles, refuse trucks, cranes and off-road equipment.
</DIV>

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<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U>Alternative Fuel Products</U>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We design and supply products to address the emissions issues of liquefied petroleum gas and
compressed natural gas fueled engines used in industrial applications such as forklifts, aerial
platforms, etc.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our TermiNOx<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> system converts any open-loop liquefied petroleum gas or
compressed natural gas fueled off-road engine into a state of the art, digitally programmable,
closed-loop, 3-way controlled engine that simultaneously reduces carbon monoxide, hydrocarbon and
nitrogen oxide emissions by a CARB-verified 85 to 90%. In addition, the fuel efficiency of the
vehicle typically improves by as much as 20%. TermiNOx<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> upgrades uncontrolled
spark ignited engines used in industrial applications with state-of-the-art, electronic closed-loop
fuel control and 3-way catalytic emissions control to reduce: smog-causing emissions by over 90%,
toxic carbon monoxide emissions by over 85%, and fuel consumption by 10 to 20%.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We also offer a 2-Way Purimuffler<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> product for liquefied petroleum gas,
and gasoline industrial engines. The 2-Way Purimuffler<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> product features a
built-in tube, referred to as a venturi, which introduces additional air into the catalytic muffler
to insure high conversion of deadly carbon monoxide and reduction of hydrocarbon odors over the
catalyst while preventing excessive exhaust temperatures.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U>Exhaust Accessories and Miscellaneous Products</U>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We manufacture a wide array of ECS-branded exhaust accessories including connectors, elbows,
mounting brackets, clamps, exhaust stacks and guards, and intake air components. These exhaust
accessories are used as aftermarket replacement components or in the installation of ECS-branded
OEM and verified retrofit products.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The CombiClean<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> system utilizes economical, safe and environmentally
friendly technology developed to clean diesel filters, whether it is a passive filter, or active,
cordierite or silicon carbide filter. The cleaning process uses a gradual temperature increase with
a constant air supply during the regeneration process in order to prevent damage to catalytic
coatings and substrate materials. These systems are typically contained within stand alone units
with protective enclosures to prevent injury due to accidental contact with hot surfaces and to
prevent employee exposure to suspended air particles.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Back Pressure Monitor and Logger provides onboard monitoring of retrofitted emissions
control systems, providing the operator notification of required maintenance. The Back Pressure
Monitor and Logger also logs information for diagnostic purposes to facilitate engine and emission
control system maintenance and reduce downtime.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In addition, we have a pipeline of new heavy duty diesel systems products under development.
We are working on the next generation of current product offerings and in growing the portfolio of
systems products that incorporate our proprietary MPC<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> catalyst technology.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B><I>Catalyst Division</I></B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our Catalyst division produces catalyst formulations for gasoline, diesel and natural gas
induced emissions that offer superior performance, proven durability and cost effectiveness for
multiple markets and a wide range of applications. The Catalyst division products include catalysts
for gasoline (light duty vehicle) engines, diesel engines and for energy applications.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U>Catalysts for Gasoline (Light Duty Vehicle) Engines</U>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our technology for light duty vehicles significantly improves catalytic performance, is highly
durable and cost-effective. We have developed unique nanostructures that are extremely thermally
stable and resistant to sintering. Catalytic converters using our technology have superior
catalytic performance, can cost substantially less as a result of significantly reduced platinum
group metal or zero- platinum group metal loadings, have comparable or better durability and are
physically and operationally compatible with all existing manufacturing processes and operating
requirements. Our solution is based on industry-leading, patent-protected technology and a scalable
manufacturing business model.
</DIV>

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<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U>Catalysts for Diesel Engines</U>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Diesel engines are more durable and are more fuel efficient than gasoline engines, but can
pollute significantly more. Current techniques for diesel engines to meet emissions standards
require the use of several methods, including diesel oxidation catalysts, catalyzed diesel
particulate filters and selective catalytic reduction systems. We have been producing diesel
oxidation catalysts since 2000. In addition, we are working with leading heavy duty diesel engine
and substrate manufacturers to develop diesel oxidation catalysts, catalyzed diesel particulate
filters and selective catalytic reduction systems utilizing our catalyst technology to meet United
States and European light and heavy duty regulations with minimal or no platinum group metals. We
offer a full range of catalyst products for the control of carbon monoxide, hydrocarbons,
particulate matter and nitrogen oxide in light and heavy duty applications.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U>Catalysts for Energy Applications</U>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We develop and manufacture catalysts for use in selective catalytic reduction and carbon
monoxide reduction systems, which are used to reduce nitrogen oxide and carbon monoxide emissions
from major utility plants, industrial process plants, OEMs, refineries, food processors, product
manufacturers and universities. Our customized catalysts provide design flexibility and our
proprietary MPC<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> coating technology allows for optimal temperature operation
of the plant and an overall superior system design when compared to existing technologies. We have
achieved this demonstrated performance advantage by creating a catalyst using unique nanostructures
with superior stability under prolonged exposure to high temperatures.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In addition to the portfolio of products already developed from our proprietary
MPC<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> technology platform, we have a pipeline of new products under
development. We are working on the next generation of our current product offerings and in growing
the portfolio of zero-platinum group metal products and verified technologies.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Sales and Marketing</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We sell our heavy duty diesel systems and catalysts worldwide. Our Asian joint venture
partnership is responsible for manufacturing, sales and marketing of our catalysts in the Asian
market including China, Japan and South Korea among other countries.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We sell our heavy duty diesel system products to customers throughout the world using North
American and European dealers and distributors. We have over 100 distributors in several countries.
The dealers and distributors receive a discount from list price or a commission, which varies
depending on the product sold. Customers purchase these heavy duty diesel system products to reduce
emissions for either retrofit or OEM applications. Retrofit applications generally involve funded
projects that use &#147;approved systems&#148; that are one-off in nature. Typical retrofit end-user
customers include school districts, municipalities and other fleet operators. OEM customers include
manufacturers of heavy duty diesel equipment such as mining equipment, vehicles, generator sets and
construction equipment. The market for our heavy duty diesel systems products is heavily influenced
by government funding of emissions control projects. In addition, adoption and implementation of
diesel emission control regulations drives demand for our products.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The catalyst industry is mainly comprised of a few suppliers serving large, sophisticated
customers such as automobile manufacturers. Purchase cycles for catalysts tend to be long,
resulting in generally predictable and stable revenue streams. Catalysts are technology intensive
products that have a profound effect on the performance of the large, expensive systems in which
they are embedded. Extensive interaction is required between catalyst manufacturers and their
customers in the course of developing an effective, reliable catalyst for a particular application.
For this reason it would appear that even the largest customers prefer to work with only two or
three preferred catalyst suppliers on a specific application. The collaboration required for
catalyst development and the technical hurdles involved in making effective and reliable catalysts
create barriers to entry and provide an opportunity for catalyst manufacturers to earn attractive
margins. We are an approved supplier of catalysts for major automotive manufacturers, including
Honda and Renault. In addition, the Catalyst division targets large heavy duty diesel engine
manufacturers as potential buyers of our catalyst products. Our Heavy Duty Diesel Systems division
is also a customer of our catalyst products.
</DIV>

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<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<I>Asian Joint Venture</I>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In February&nbsp;2008, CSI entered into an agreement with Tanaka Kikinzoku Kogyo Kabushiki Kaisha
(TKK)&nbsp;to form a new joint venture company, TC Catalyst Incorporated (TCC)&nbsp;to manufacture and
distribute catalysts in the Asia-Pacific territories including China, Japan, South Korea and other
Asian countries.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Under the terms of the agreement, CSI and TKK each originally owned 50% of TCC. TKK provided
TCC with $1.0&nbsp;million in equity and capital and $5.0&nbsp;million in debt financing, while CSI provided
$1.0&nbsp;million of equity and licensed specific patents, and technology as well as intellectual
property for use in the defined territory royalty free to the venture. In exchange for the licensed
technology, TCC issued CSI a promissory note for JPY 500&nbsp;million (approximately U.S. $4.7&nbsp;million)
that accrued interest at 2.8%, due in March&nbsp;2018.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In December of 2008, CSI entered into an agreement with TKK to alter the Joint Venture
Agreement. CSI sold 40% of its ownership interest in TCC to TKK for $0.4&nbsp;million, reducing its
ownership share of TCC from 50% to 30%. CSI agreed to sell and transfer specific heavy duty diesel
catalyst technology and intellectual property to TKK for use in the defined territory for a total
selling price of $7.5&nbsp;million. TKK agreed to provide that intellectual property to TCC on a royalty
free basis. $5.0&nbsp;million of the sale was completed and recognized as a gain in 2008, with the
balance of $2.5&nbsp;million being recognized in 2009. The promissory note from TCC was reduced from JPY
500&nbsp;million to JPY 250&nbsp;million. As a result of this sale, a gain of $5.0&nbsp;million was recorded in
the year ended December&nbsp;31, 2008 and $2.5&nbsp;million in year ended December&nbsp;31, 2009.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In December of 2009, CSI entered into another agreement with TKK to further alter the Joint
Venture Agreement. CSI sold 83% of its remaining ownership of TCC to TKK for $0.1&nbsp;million, reducing
its ownership share from 30% to 5%. CSI agreed to sell and transfer specific three-way catalyst
technology and intellectual property for use in the defined territory for a total selling price of
$3.9&nbsp;million. TKK agreed to provide that intellectual property to TCC on a royalty-free basis. $3.9
million of the sale was completed and the full amount was recognized as a gain in January&nbsp;2010. The
promissory note with a remaining balance of JPY 250&nbsp;million was retired.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Competition</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our Heavy Duty Diesel Systems division competes directly against other companies that market
verified products. Competitors with EPA verified products include: Donaldson Company, Inc., Cummins
Emissions Solutions, Johnson Matthey plc, Caterpillar Inc. and BASF. Competitors with CARB verified
products include: Johnson Matthey plc, Donaldson Company, Inc., Cleaire Advanced Emission Controls,
LLC, Huss LLC, DCL International Inc., and Environmental Solutions Worldwide, Inc. In Europe, we
compete with Dinex and Pirelli.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The catalyst industry is concentrated with a few major competitors as a result of continuing
consolidation through acquisitions. The major competitors are diversified enterprises with
catalysts representing one of several lines of business. We compete directly against BASF Gmbh and
Johnson Matthey plc in all of our catalyst markets. Other Catalyst division competitors include
Umicore Limited Liability Company and Haldor-Topsoe.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Manufacturing Operations</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our Heavy Duty Diesel Systems division engineers our emissions control products to
customer-specific applications. We believe that this approach reduces installation or assembly time
and optimizes operating uptime. Our Heavy Duty Diesel Systems division works as the customer&#146;s
partner to deliver custom, industry leading solutions that address each customer&#146;s particular
environmental mandates. Our heavy duty diesel systems are designed and manufactured in facilities
located in Reno, Nevada; Thornhill, Ontario; Malm&#246;, Sweden and South Godstone, Surrey, United
Kingdom.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our Catalyst division developed an innovative and sophisticated manufacturing process for
coating substrates using our MPC<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> catalytic coatings. The manufacturing
process consists of mixing specially formulated catalytic coatings, applying the coatings to
ceramic substrates, then firing the coated substrates in a furnace. The process of mixing and
applying the various types of coatings onto high cell density substrates is complex and requires
sophisticated manufacturing technology. We have been manufacturing automotive catalysts since 1999.
Our first generation manufacturing line, currently producing coated substrates for several
vehicles, has satisfied all requirements for process control, accountability and quality required
by our automotive customers. Our second generation line has process control up to three times
better than our first generation line and operates at significantly
</DIV>

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<DIV align="left" style="font-size: 10pt; margin-top: 6pt">higher throughput. Our manufacturing lines are designed to provide a high level of quality control
at every step of the unique manufacturing process. We manufacture our catalysts in our
manufacturing facility in Oxnard, California.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We
maintain ISO 9001:2008, ISO/TS 16949:2009 and ISO 14001:2004 certifications.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our raw material requirements vary by division. Our Catalyst division purchases ceramic
substrates that we coat with specialty formulated catalysts comprised of platinum group metals and
various chemicals. Platinum group metals are either provided on a consignment basis by the
customers of the division or are purchased by us on behalf of the customer. Our Heavy Duty Diesel
Systems division purchases filters, filters coated with catalysts and other materials to
manufacture our emission systems, which are purchased from third party suppliers as well as
internally from our Catalyst division.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Intellectual Property</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our intellectual property includes patent rights, trade secrets and registered and common law
trademarks. In the past, we primarily protected our intellectual property, particularly in the area
of three way catalysts (and particularly in the automotive area) by maintaining our innovative
technology as trade secrets. We believe that the protection provided by trade secrets for our
intellectual property was the most suitable protection available for the automotive industry where
our business initially started and in which we currently sell our commercial products. Our
automotive competitors also largely rely on trade secret protection for their innovative
technology.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Since we began pursuing additional catalyst markets, we have sought patent protection in
relation to any new industries and new countries in which we expect to do business. We currently
have 186 issued patents and 107 pending applications covering the following main technologies:
fundamental catalyst formulations based on perovskite mixed metal oxides applicable to all catalyst
markets, Mixed Phase Catalyst (MPC<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>) technology, platinum group metal-free
catalyzed diesel particulate filter, selective catalytic reduction, diesel oxidation catalyst,
zero-platinum group metal three-way catalyst formulations, fuel-borne catalysts, exhaust gas
recirculation with selective catalytic reduction and exhaust systems for diesel engines
incorporating particulate filters.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We now rely on a combination of trade secrets, know-how, trademark registrations,
confidentiality and other agreements with employees, customers, partners and others, as well as
patents in selective areas and other protective measures to protect our intellectual property
rights pertaining to our products and technology.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We currently have registered trademarks for the Clean Diesel Technologies name with logo, CDT
logo, CSI<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>, CATALYTIC SOLUTIONS<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>, CSI logo,
ARIS<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>, BARETRAP<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>, CATTRAP
 <SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>,
COMBICLEAN<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>, COMBIFILTER<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>, MPC<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>,
PATFLUID<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>, PLATINUM PLUS<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>, PURIFIER and design,
PURIFILTER<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>, PURIMUFFLER<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>,
TERMINOX<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> and UNIKAT<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Regulation</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We are committed to complying with all federal, state and international environmental laws
governing production, use, transport and disposal of substances and control of emissions. In
addition to governing our manufacturing and other operations, these laws often impact the
development of our emissions control products, including, but not limited to, required compliance
with emissions standards applicable to new product diesel, gasoline and alternative fuel engines.
These regulations include those developed in Japan, in the United States by the EPA and CARB and in
the E.U. by the European Environment Agency.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Many of our products must receive regulatory approval prior to sale. In the United States,
regulatory approval is obtained from the EPA or CARB through a verification process. The
verification process includes a thorough technical review of the technology as well as tightly
controlled testing to quantify statistically significant levels of emission reductions. For
example, the EPA verification process begins with a verification application and a test plan. Once
this is completed, the testing phase begins and is then followed by a data analysis to determine if
the technology qualifies for verification. Once a technology is placed on the verified technologies
list and 500 units are sold, the manufacturer is responsible for conducting in-use testing and
reporting of results to the EPA. Similar product approval schemes exist in other countries around
the world.
</DIV>

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<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Research and Development</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our research and development in catalyst technology has resulted in a broad array of products
for the light duty vehicle and heavy duty diesel markets. Our greatest strength in the catalyst
business lies in the technical sophistication and cost-to-performance ratio of our products.
Product development in our Heavy Duty Diesel Systems division has resulted in a broad family of
verified products and systems, with additional products in the pipeline. We credit our
accomplishments to strong engineering capabilities, an experienced team, streamlined product
development processes and solid experience in the verification and approval process. We seek to
acquire competitive advantage through the use of customized catalysts for our emission control
systems. We spent approximately $4.4&nbsp;million and $7.3&nbsp;million on research and development
activities in the years ended December&nbsp;31, 2010 and 2009, respectively.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Employees</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;As of December&nbsp;31, 2010, we had 152 full time employees and 4 part time employees. None of our
employees is a party to a collective bargaining agreement. We also retain outside consultants and
sales and marketing consultants and agents.
</DIV>

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<DIV align="left">
<A name="V59112103"></A>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>ITEM 1A. RISK FACTORS</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<I>We are subject to many risks and uncertainties that may affect our future financial
performance and our stock price. Some of the risks and uncertainties that may cause our financial
performance to vary or that may materially or adversely affect our financial performance or stock
price are discussed below. Investors should carefully consider the risks described below and the
other information contained in this Annual Report on </I><I>Form 10-K</I><I> before making an investment
decision. We cannot assure you of a profit or protect you against a loss on an investment in our
company.</I>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Risks Relating to Our Business and Recent Merger</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt"><B><I>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</I></B>.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Although we and certain of our subsidiaries entered into a $7.5&nbsp;million secured demand
facility backed by our receivables and inventory on February&nbsp;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, 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 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 need additional funds and 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 align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Our auditor&#146;s report for the year ended December&nbsp;31, 2010 includes a &#147;going concern&#148; explanatory
paragraph.</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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&nbsp;31, 2010, we had an
accumulated deficit of approximately $157.7&nbsp;million. As a result, our auditor&#146;s report for year
ended December&nbsp;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. If we are not able to obtain additional sources of funding, it would
have a material adverse effect on our business, operating results, financial condition and long
term prospects.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>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.</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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 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>

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<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>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.</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Both CDTI and CSI historically operated with negative cash flow from operations. Although we
have identified areas where economies can be affected, 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 align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>We may not realize all of the anticipated benefits of the Merger.</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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 day-to-day 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">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="6%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>maintaining employee morale and retaining key employees;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="6%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>preserving important strategic and customer relationships;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="6%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>the diversion of management&#146;s attention from ongoing business concerns;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="6%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>coordinating geographically separate organizations;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="6%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>unanticipated issues in integrating information, communications and other systems;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="6%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>coordinating marketing functions;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="6%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>consolidating corporate and administrative infrastructures and eliminating
duplicative operations; and</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="6%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>integrating the cultures of CDTI and CSI.</TD>
</TR>

</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>The Merger will likely adversely affect our ability to take advantage of the significant U.S.
Federal tax loss carryforwards accumulated.</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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. 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 tax credits as a result of the Merger could
have an adverse effect on our results of operations.
</DIV>

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</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">


<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>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 the
business after the Merger.</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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 align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>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.</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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 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 align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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 in the future 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 align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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 align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>We have incurred losses in the past and expect to incur losses in the near future.</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Each of CDTI and CSI has suffered losses from operations since inception. As of December&nbsp;31,
2010, we had an accumulated deficit of $157.7&nbsp;million. Although we expect to realize certain
operating synergies from the Merger, we nevertheless expect to continue to incur operating losses
in the foreseeable future. There can be no assurance that we will achieve or sustain significant
revenues, positive cash flows from operations or profitability in the future.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Historically, we have been dependent on a few major customers for a significant portion of our
company&#146;s 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.</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Historically, each of CDTI and CSI derived a significant portion of our revenue from a limited
number of customers. Although the Merger provided additional customers to the combined company,
for the year ended December&nbsp;31, 2010, two customers accounted for approximately 32% of our revenue.
For the year ended December&nbsp;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
</DIV>

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</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">single customer, and we anticipate that we will see reduced dependency on a  number of customers as a
combined company, 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 and/or 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 align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Foreign currency fluctuations could impact financial performance.</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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 align="left" style="font-size: 10pt; margin-top: 12pt"><B>Risks Related to Our Industry</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt"><B><I>We face constant changes in governmental standards by which our products are evaluated.</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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 align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>We face competition and technological advances by competitors.</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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 products that are verified by the EPA and/or
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 align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>We depend on intellectual property and the failure to protect our intellectual property could
adversely affect our future growth and success.</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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 align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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 align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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 align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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
</DIV>

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</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">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 align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;There can be no assurance that we will be successful in protecting our proprietary rights. 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 align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>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.</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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&nbsp;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 align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Our results may fluctuate due to certain regulatory, marketing and competitive factors over which
we have little or no control.</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Actions taken by regulatory bodies relating to the verification, registration or health
effects of our products.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>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>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The timing and size of customer purchases.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Customer concerns about the stability of our business, which could cause them to seek
alternatives to our solutions and products; and</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Increases in raw material costs, particularly platinum group metals and rare earth
metals.</TD>
</TR>

</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>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.</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Due to customer demands, we are required to source critical materials and components such as
ceramic substrates from single suppliers. 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 passing platinum group metal price risk onto its
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, 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>

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<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>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.</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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 align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>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.</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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 align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>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.</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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 align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>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.</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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 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>

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<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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 align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We believe that it is an essential requirement of the U.S. retrofit market that emissions
control products and systems are verified under the EPA and/or CARB protocols to qualify for
funding from the EPA and/or 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&nbsp;2009 because available test results were not accepted by 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 align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>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.</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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 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 align="left" style="font-size: 10pt; margin-top: 12pt"><B>Risks Related to Our Common Stock</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt"><B><I>The investors in CSI&#146;s capital raise, who converted their shares of Class&nbsp;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.</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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&nbsp;B
common stock and were exchanged for shares of our common stock in the Merger). Accordingly, the
investors in CSI&#146;s capital raise, 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
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 align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>The price of our common stock may be adversely affected by the sale of a significant number of new
common shares.</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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&nbsp;15, 2010, we issued (or reserved
for issuance) an aggregate 2,287,872 shares of our common stock and warrants to purchase an
additional 666,581 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 shares and warrants to
purchase an additional 166,666 shares of our common stock, each on a post-split basis after
eliminating fractional shares, in a Regulation&nbsp;S offering, as well as 32,414 shares and warrants to
purchase an additional 14,863 shares, each on a post-split basis after eliminating fractional
shares, as compensation for services rendered in connection with the Merger and our Regulation&nbsp;S
offering. Resales of these shares by the holders thereof (some of whom received registered shares
and some of whom have registration rights), 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>

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<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>The risk of dilution, perceived or actual, may contribute to downward pressure on the trading price
of our stock.</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We have outstanding 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 align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>There has historically been limited trading volume in, and significant volatility in the price of,
our common stock on The NASDAQ Capital Market.</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;CDTI&#146;s common stock began trading on The NASDAQ Capital Market effective October&nbsp;3, 2007.
Prior to this date, CDTI&#146;s common stock was traded on the OTC Bulletin 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 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.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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 March&nbsp;23, 2011, the
closing price for a share of our common stock was $5.51 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 align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>We have not and do not intend to pay dividends on shares of our common stock.</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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>
<DIV align="left">
<A name="V59112104"></A>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>ITEM 1B. UNRESOLVED STAFF COMMENTS</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;None.
</DIV>
<DIV align="left">
<A name="V59112105"></A>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>ITEM 2. PROPERTIES</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We occupy approximately 2,700 square feet of office space at 4567 Telephone Road, Suite&nbsp;206,
Ventura, California, under a lease agreement that expires on August&nbsp;31, 2013 for our corporate
headquarters.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our Heavy Duty Diesel Systems division uses approximately 51,000 square feet of space in Ontario,
Canada under a lease agreement that expires on December&nbsp;31, 2018 for administrative, research and
development, manufacturing, sales and marketing functions; approximately 54,000 square feet of
space in Reno, Nevada under a lease agreement that expires on January&nbsp;31, 2015 for sales and
manufacturing purposes; approximately 5,515 square feet of office space in Bridgeport, Connecticut
under a lease agreement that expires on December&nbsp;31, 2015 for administrative and sales
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">and marketing offices, and which served as our corporate headquarters prior to the Merger; and
approximately 1,942 square feet in Surrey, United Kingdom (outside London) for administrative,
sales and marketing and assembly that we have occupied on a month-to-month basis pending
finalization of the terms of a definitive 5-year lease agreement. We also own a 6,700 square foot
condominium in Malm&#246;, Sweden that our Heavy Duty Diesel Systems division uses for administrative,
research and development and European sales and marketing.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our Catalyst division uses approximately 77,500 square feet of space in Oxnard, California
under four separate lease agreements that expire on December&nbsp;31, 2011, March&nbsp;31, 2012 and two on
December&nbsp;31, 2012 for manufacturing and research and development. This space includes a warehouse
that is also used for shipping and receiving. Our Catalyst division also leases 624 square feet of
office space near Paris in Gif sur Yvette, France under a lease agreement that provides for
expiration as early as July&nbsp;31, 2011, but no later than July&nbsp;31, 2017, that is used for sales; and
approximately 767 square feet of space in Tokyo, Japan under a lease agreement that expires on June
15, 2013, which is used for sales and marketing purposes.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We may exercise our early termination right to cancel our Bridgeport, Connecticut office
lease. The early termination right allows us to cancel on December&nbsp;31, 2013 with at least nine
months&#146; advanced written notice along with an early termination fee of $45,960; the landlord&#146;s
unamortized portion of construction costs with seven percent interest thereon; brokerage fees and
attorney fees.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We do not anticipate the need to acquire additional space in the near future and consider our
current capacity to be sufficient for current operations and projected growth. As such, we do not
expect that our rental costs will increase substantially from the amounts historically paid in
2010.
</DIV>
<DIV align="left">
<A name="V59112106"></A>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>ITEM 3. LEGAL PROCEEDINGS</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On April&nbsp;30, 2010, CDTI received a complaint from the Hartford, Connecticut office of the U.S.
Department of Labor under Section&nbsp;806 of the Corporate and Criminal Fraud Accountability Act of
2001, Title VIII of the Sarbanes-Oxley Act of 2002, alleging that a former employee had been
subject to discriminatory employment practices. CDTI&#146;s Board of Directors terminated the employee&#146;s
employment on April&nbsp;19, 2010. The complainant in this proceeding does not demand specific relief.
However, the statute provides that a prevailing employee shall be entitled to all relief necessary
to make the employee whole, including compensatory damages, which may be reinstatement, back pay
with interest, front pay, and special damages such as attorney&#146;s and expert witness fees. CDTI
responded on June&nbsp;14, 2010, denying the allegations of the complaint. Based upon current
information, management, after consultation with legal counsel defending our interests, believes
the ultimate disposition will have no material effect upon our business, results or financial
position.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In addition to the foregoing, we are involved in legal proceedings from time to time in the
ordinary course of our business. We do not believe that any of these claims and proceedings
against it is likely to have, individually or in the aggregate, a material adverse effect on our
consolidated financial condition or results of operations. For more information relating to our
legal proceedings see Note 19 to our Annual Consolidated Financial Statements included elsewhere in
this Annual Report on Form 10-K.
</DIV>

<DIV align="left">
<A name="V59112107"></A>
</DIV>
<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>ITEM 4. REMOVED AND RESERVED</B>
</DIV>



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<DIV align="left">
<A name="V59112108"></A>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>Part II</B>
</DIV>

<DIV align="left">
<A name="V59112109"></A>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>ITEM 5. MARKET FOR REGISTRANTS COMMON EQUITY, RELATED STOCKHOLDERS MATTERS AND ISSUER PURCHASES OF
EQUITY SECURITIES</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt"><B><I>Market Information</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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 one-for-six reverse stock split,
both of which took effect October&nbsp;15, 2010, it temporarily traded under the symbol &#147;CDTID&#148; in
accordance with NASDAQ&#146;s rules.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The following table sets forth the high and low 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&nbsp;15, 2010 have
been restated to reflect the one-for-six reverse stock split that took effect October&nbsp;15, 2010
after the end of trading.
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6" style="border-bottom: 0px solid #000000"><B>NASDAQ Capital Market</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>High</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>Low</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px"><B>2009</B></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">1<SUP style="FONT-size: 85%; vertical-align: text-top">st</SUP> Quarter</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">18.30</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">6.00</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">2<SUP style="FONT-size: 85%; vertical-align: text-top">nd</SUP> Quarter</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">15.00</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">8.46</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">3<SUP style="FONT-size: 85%; vertical-align: text-top">rd</SUP> Quarter</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">13.20</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">7.50</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">4<SUP style="FONT-size: 85%; vertical-align: text-top">th</SUP> Quarter</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">13.38</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">8.40</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px"><B>2010</B></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">1<SUP style="FONT-size: 85%; vertical-align: text-top">st</SUP> Quarter</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">13.32</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">8.70</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">2<SUP style="FONT-size: 85%; vertical-align: text-top">nd</SUP> Quarter</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">10.68</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">5.70</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">3<SUP style="FONT-size: 85%; vertical-align: text-top">rd</SUP> Quarter</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">8.52</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">4.08</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">4<SUP style="FONT-size: 85%; vertical-align: text-top">th</SUP> Quarter</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">44.38</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">3.00</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Holders</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;At March&nbsp;23, 2011, there were 312 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>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Dividends</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;No dividends have been paid on our common stock and we do not anticipate paying dividends in
the foreseeable future.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Issuances of Unregistered Securities</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;All sales of unregistered securities during the period covered by this Annual Report on Form
10-K have been previously reported.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Issuer Purchases of Equity Securities</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;No shares were repurchased during the fourth quarter ended December&nbsp;31, 2010.
</DIV>






<P align="center" style="font-size: 10pt"><!-- Folio -->23<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>



<DIV style="font-family: 'Times New Roman',Times,serif">



<DIV align="left">
<A name="V59112110"></A>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>ITEM 6. SELECTED FINANCIAL DATA</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The following selected financial data has been derived from our audited consolidated financial
statements. The statements of operations data relating to the years ended December&nbsp;31, 2010 and
2009, and the balance sheet data as of December&nbsp;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 elsewhere in this Annual Report on Form 10-K.
Beginning in the year ended December&nbsp;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.
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="40%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD style="border-bottom: 0px solid #000000">&nbsp;</TD>
    <TD style="border-bottom: 1px solid #000000">&nbsp;</TD>
    <TD style="border-bottom: 1px solid #000000">&nbsp;</TD>
    <TD style="border-bottom: 1px solid #000000">&nbsp;</TD>
    <TD style="border-bottom: 1px solid #000000">&nbsp;</TD>
    <TD nowrap align="center" colspan="10" style="border-bottom: 1px solid #000000"><B>For the Year Ended December 31,</B></TD>
    <TD style="border-bottom: 1px solid #000000">&nbsp;</TD>
    <TD style="border-bottom: 1px solid #000000">&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000">&nbsp;</TD>
    <TD style="border-bottom: 0px solid #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2008</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2007</B></TD>
    <TD style="border-bottom: 0px solid #000000">&nbsp;</TD>
    <TD style="border-bottom: 0px solid #000000">&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2006</B></TD>
    <TD style="border-bottom: 0px solid #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="19">(in thousands, except per share amounts)</TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><B>STATEMENTS OF OPERATIONS DATA</B></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Revenues</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Heavy Duty Diesel Systems division</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">31,161</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">25,916</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">27,126</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">342</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Catalyst division</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">17,726</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">25,074</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">26,311</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">29,792</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">37,847</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Eliminations</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(770</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(476</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(874</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:45px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Total revenues</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">48,117</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">50,514</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">52,563</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">30,134</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">37,847</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:45px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Gross profit</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">12,035</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">11,967</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">8,217</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">3,176</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">6,912</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><B><I>Gross margin</I></B></DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right"><B><I>25.0</I></B></TD>
    <TD nowrap><B><I>%</I></B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right"><B><I>23.7</I></B></TD>
    <TD nowrap><B><I>%</I></B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right"><B><I>15.6</I></B></TD>
    <TD nowrap><B><I>%</I></B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right"><B><I>10.5</I></B></TD>
    <TD nowrap><B><I>%</I></B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right"><B><I>18.3</I></B></TD>
    <TD nowrap><B><I>%</I></B></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Selling, general and administrative</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">11,923</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">12,480</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">15,776</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">11,445</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">7,653</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Research and development</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">4,373</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">7,257</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">8,942</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">7,702</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">6,486</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">In-process research and development (1)</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">6,635</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Delphi bid (2)</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2,668</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Severance expense</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">261</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,429</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">234</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Recapitalization expense</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3,247</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,258</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Impairment of long-lived assets</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">4,928</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Gain on sale of intellectual property</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(3,900</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(2,500</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(5,000</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Total operating expenses</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">15,904</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">19,924</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">24,880</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">28,450</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">14,139</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Loss from operations</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(3,869</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(7,957</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(16,663</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(25,274</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(7,227</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Total other (expense) income, net</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(5,463</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(2,577</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(2,601</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,376</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(25,520</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Income tax expense (benefit)&nbsp;from continuing operations</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">12</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(1,036</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">624</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">16</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">20</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Net loss from continuing operations</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(9,344</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(9,498</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(19,888</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(23,914</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(32,767</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Net income (loss)&nbsp;from discontinued operations</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">968</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,522</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(916</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">748</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">592</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Net loss</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(8,376</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(7,976</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(20,804</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(23,166</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(32,175</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><B>Basic and diluted loss per common share:</B></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Net loss from continuing operations</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(7.55</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(17.27</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(36.16</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(47.07</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(65.02</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Net income (loss) from discontinued operations</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">0.78</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2.77</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(1.67</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1.47</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1.17</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Net loss</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(6.77</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(14.50</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(37.83</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(45.60</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(63.84</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<tr><td>&nbsp;</td></tr>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Weighted average shares outstanding &#151; basic and diluted</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,238</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">550</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">550</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">508</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">504</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="40%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="18" style="border-bottom: 1px solid #000000"><B>As of December 31,</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2008</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2007</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2006</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD align="center" colspan="19">(in thousands)</TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><B>BALANCE SHEET DATA</B></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Total current assets</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">17,645</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">18,596</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">30,806</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">38,164</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">41,195</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Total assets</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">32,648</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">30,243</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">49,714</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">65,739</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">54,381</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Total current liabilities</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">14,753</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">22,949</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">35,853</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">13,603</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">5,713</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Total long-term liabilities</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">2,552</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">1,411</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">2,448</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">18,029</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">3,000</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Stockholders&#146; equity</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">15,343</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">5,883</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">11,413</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">34,447</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">45,716</TD>
    <TD>&nbsp;</TD>
</TR>
<tr><TD>&nbsp;</TD></tr>

<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Short-term debt</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">2,431</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">8,147</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">17,880</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">408</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Long-term debt</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">1,456</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">75</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">33</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">15,494</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">3,000</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>



<DIV align="left">
<DIV style="font-size: 3pt; margin-top: 16pt; width: 18%; border-top: 1px solid #000000">&nbsp;</DIV>
</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="96%"></TD>
</TR>

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

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

<TR valign="top">
    <TD nowrap align="left">(2)</TD>
    <TD>&nbsp;</TD>
    <TD>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>





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<DIV align="left">
<A name="V59112111"></A>
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<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>ITEM 7. MANAGEMENT&#146;S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<I>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 included effective from October
15, 2010, the date of the closing of the Merger. For information regarding CDTI&#146;s financial
condition and results of operations as well as CDTI&#146;s financial statements and related notes
thereto reflecting CDTI&#146;s business as a stand-alone company for periods prior to the Merger, please
see our annual report on </I><I>Form 10-K</I><I> for the year ended December&nbsp;31, 2009 and our quarterly reports
on </I><I>Form 10-Q</I><I> for periods prior to the closing of the Merger.</I>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<I>The following discussion and analysis of our financial condition and results of operations
should be read in conjunction with our annual consolidated financial statements and related notes
included elsewhere in this report on </I><I>Form 10-K</I><I>. This discussion contains forward-looking
statements, the accuracy of which involves risks and uncertainties, see &#147;Cautionary Statement
Concerning Forward-Looking Statements.&#148; Our actual results could differ materially from those
anticipated in these forward-looking statements for many reasons, as a result of many important
factors, including the consolidation of CDTI for periods after October&nbsp;15, 2010, as well as those
set forth in the Item&nbsp;1A &#147;Risk Factors.&#148;</I>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Overview</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We are a vertically-integrated global manufacturer and distributor of emissions control
systems and products, focused in the heavy duty diesel and light duty vehicle markets. Our
emissions control systems and products are designed to deliver high value to our customers while
benefiting the global environment through air quality improvement, sustainability and energy
efficiency.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In light of the Merger, we now organize our operations in two business
divisions: the Heavy Duty Diesel Systems division and the Catalyst
division. We have included all of the operations of CDTI in our Heavy Duty Diesel Systems division
effective from the date of the closing of the Merger.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<I>Heavy Duty Diesel Systems: </I>Through our Heavy Duty Diesel Systems division we design and
manufacture verified exhaust emissions control solutions. Our Heavy Duty Diesel Systems division
offers a full range of products for the verified retrofit and original equipment manufacturer, or
OEM, markets through its distribution/dealer network and direct sales. These ECS and Clean Diesel
Technologies-branded products, such as Purifilter<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP>, Purifier,
ARIS<SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> and exhaust gas recirculation with selective catalytic reduction are
used to reduce exhaust emissions created by on-road, off-road and stationary diesel and alternative
fuel engines including propane and natural gas. Revenues from our Heavy Duty Diesel Systems
division accounted for approximately 64.9% and 51.3% of total consolidated revenues for the years
ended December&nbsp;31, 2010 and 2009, respectively.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<I>Catalyst: </I>Through our Catalyst division, we produce catalyst formulations for gasoline,
diesel and natural gas induced emissions that are offered for multiple markets and a wide range of
applications. A family of unique high-performance catalysts has been developed &#151; with base-metals
or low platinum group metal and zero- platinum group metal content &#151; to provide increased
catalytic function and value for technology-driven automotive industry customers. Our technical and
manufacturing competence in the light duty vehicle market is aimed at meeting auto makers&#146; most
stringent requirements, and we have supplied over ten million parts to light duty vehicle customers
since 1996. Our Catalyst division also provides catalyst formulations for our Heavy Duty Diesel
Systems division. Revenues from our Catalyst division accounted for approximately 36.8% and 49.7%
of total consolidated revenues for the years ended December&nbsp;31, 2010 and 2009, respectively.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Sources of Revenues and Expenses</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt"><B><I>Revenues</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We generate revenues primarily from the sale of our emission control systems and products. We
generally recognize revenues from the sale of our emission control systems and products upon
shipment of these products to our customers. However, for certain customers, where risk of loss
transfers at the destination (typically the customer&#146;s warehouse), revenue is recognized when the
products are delivered to the destination (which is generally within five days of the shipment).
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Cost of revenues</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Cost of revenues consists primarily of direct costs for the manufacture of emission control
systems and products, including cost of raw materials, costs of leasing and operating manufacturing
facilities and wages paid to personnel involved in production, manufacturing quality control,
testing and supply chain management. In addition, cost of revenues include normal scrap and
shrinkage associated with the manufacturing process and a expense from write down of obsolete and
slow moving inventory. We include the direct material costs and factory labor as well as factory
overhead expense in the cost of revenue. Indirect factory expense includes the costs of freight
(inbound and outbound for direct material and finished goods), purchasing and receiving,
inspection, testing, warehousing, utilities and deprecation of facilities and equipment utilized in
the production and distribution of products.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Selling, general and administrative expenses</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In prior periods we presented &#147;Selling and marketing&#148; expenses and &#147;General and
administrative&#148; expenses separately on our statement of operations. Beginning in the year ended
December&nbsp;31, 2010, we now combine these categories of expenses into &#147;Selling, general and
administrative expenses&#148; because there is considerable overlap between management functions
pertaining to sales and marketing and general administrative duties, and as such, estimating
allocation of expenses associated with these overlapping functions is not meaningful. Prior periods
have been reclassified to reflect this change in presentation.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Selling, general and administrative expenses consists of our selling and marketing expenses,
as well as our general and administrative expenses. Selling and marketing expenses consist
primarily of compensation paid to sales and marketing personnel, and marketing expenses. Costs
related to sales and marketing are expensed as they are incurred. These expenses include the salary
and benefits for the sales and marketing staff as well as travel, samples provided at no-cost to
customers and marketing materials. General and administrative expenses consist primarily of
compensation paid to administrative personnel, legal and professional fees, corporate expenses and
regulatory, bad debt and other administrative expenses. These expenses include the salary and
benefits for management and administrative staff as well as travel. Also included is any
depreciation related to assets utilized in the selling, marketing and general and administrative
functions.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Research and development expenses</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Research and development expenses consist of costs associated with research related to new
product development and product enhancement expenditures. Research and development costs also
include costs associated with getting our heavy duty diesel systems verified and approved for sale
by the EPA, the CARB and other regulatory authorities. These expenses include the salary and
benefits for the research and development staff as well as travel, research materials, testing and
legal expense related to patenting intellectual property. Also included is any depreciation related
to assets utilized in the development of new products.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Recapitalization expenses</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Recapitalization expense consists primarily of the expense for legal, accounting and other
advisory professional services as a result of our efforts in the years ended December&nbsp;31, 2010 and
2009 to explore strategic opportunities resulting in the Merger.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Total other income (expense)</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total other income (expense)&nbsp;primarily reflects interest expense, including amounts related to
the beneficial conversion feature of the secured convertible notes issued by CSI prior to the
Merger, and changes in the fair value of certain of our financial instrument liabilities related to
such secured convertible notes and changes in fair value of our liability classified warrants. It
also includes interest income as well as our share of income and losses from our Asian joint
venture and income or losses from sale of fixed assets.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Critical Accounting Policies and Estimates</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The preparation of financial statements in conformity with U.S. generally accepted accounting
principles requires the use of estimates and assumptions that affect the reported amounts of assets
and liabilities, revenues and
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">expenses, and related disclosures in the financial statements. Critical accounting policies are
those accounting policies that may be material due to the levels of subjectivity and judgment
necessary to account for highly uncertain matters or the susceptibility of such matters to change,
and that have a material impact on financial condition or operating performance. While we base our
estimates and judgments on our experience and on various other factors that we believe to be
reasonable under the circumstances, actual results may differ from these estimates under different
assumptions or conditions. We believe the following critical accounting policies used in the
preparation of our financial statements require significant judgments and estimates. For
additional information relating to these and other accounting policies, see Note 2 to our
consolidated financial statements included elsewhere in this Annual Report on Form 10-K.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Revenue Recognition</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We generally recognize revenue when products are shipped and the customer takes ownership and
assumes risk of loss, collection of the related receivable is reasonably assured, persuasive
evidence of an arrangement exists, and the sales price is fixed or determinable. Where installation
services, if provided, are essential to the functionality of the equipment, we defer the portion of
revenue for the sale attributable to installation until we have completed the installation. When
terms of sale include subjective customer acceptance criteria, we defer revenue until the
acceptance criteria are met. Concurrent with the shipment of the product, we accrue estimated
product return reserves and warranty expenses. Critical judgments include the determination of
whether or not customer acceptance criteria are perfunctory or inconsequential. The determination
of whether or not the customer acceptance terms are perfunctory or inconsequential impacts the
amount and timing of the revenue that we recognize. Critical judgments also include estimates of
warranty reserves, which are established based on historical experience and knowledge of the
product.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Allowance for Doubtful Accounts</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The allowance for doubtful accounts involves estimates based on management&#146;s judgment, review
of individual receivables and analysis of historical bad debts. We monitor collections and payments
from our customers and maintain allowances for doubtful accounts for estimated losses resulting
from the inability of our customers to make required payments. We also assess current economic
trends that might impact the level of credit losses in the future. If the financial condition of
our customers were to deteriorate, resulting in difficulties in their ability to make payments as
they become due, additional allowances could be required, which would have a negative effect on our
earnings and working capital.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Inventory Valuation</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Inventory is stated at the lower of cost or market. Cost is determined on the first-in,
first-out method. We write down inventory for slow-moving and obsolete inventory based on
assessments of future demands, market conditions and customers who are expected to reduce
purchasing requirements as a result of experiencing financial difficulties. Such assessments require the exercise of significant judgment by management. If these factors were
to become less favorable than those projected, additional inventory write-downs could be required,
which would have a negative effect on our earnings and working capital.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Accounting for Income Taxes</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our income tax expense is dependent on the profitability of our various international
subsidiaries including Canada and Sweden, and going forward, the United Kingdom. These subsidiaries
are subject to income taxation based on local tax laws in these countries. Our U.S. operations have
continually incurred losses since inception. Our annual tax expense is based on our income,
statutory tax rates and tax planning opportunities available to us in the various jurisdictions in
which we operate. Tax laws are complex and subject to different interpretations by the taxpayer and
respective governmental taxing authorities. Significant judgment is required in determining our tax
expense and in evaluating our tax positions including evaluating uncertainties. We review our tax
positions quarterly and adjust the balances as new information becomes available. If these factors
were to become less favorable than those projected, or if there are changes in the tax laws in the
jurisdictions in which we operate, there could be an increase in tax expense and a resulting
decrease in our earnings and working capital.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Deferred income tax assets represent amounts available to reduce income taxes payable on
taxable income in future years. Such assets arise because of temporary differences between the
financial reporting and tax bases of
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">assets and liabilities, as well as from net operating loss and tax credit carry-forwards. We
evaluate the recoverability of these future tax deductions by assessing the adequacy of future
expected taxable income from all sources, including reversal of taxable temporary differences,
forecasted operating earnings and available tax planning strategies. These sources of income
inherently rely on estimates. To provide insight, we use our historical experience and our short
and long-range business forecasts. We believe it is more likely than not that a portion of the
deferred income tax assets may expire unused and have established a valuation allowance against
them. Although realization is not assured for the remaining deferred income tax assets, primarily
related to foreign tax jurisdictions, we believe it is more likely than not that the deferred tax
assets will be fully recoverable within the applicable statutory expiration periods. However,
deferred tax assets could be reduced in the near term if our estimates of taxable income in certain
jurisdictions are significantly reduced or available tax planning strategies are no longer viable.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Business Combinations</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Under the acquisition method of accounting, we record the purchase price of acquired companies
to the tangible and identifiable intangible assets acquired and liabilities assumed based on their
estimated fair values. We record the excess of purchase price over the aggregate fair values as
goodwill. We engage third-party appraisal firms to assist us in determining the fair values of
assets acquired and liabilities assumed. These valuations require us to make significant estimates
and assumptions, particularly with respect to intangible assets. Critical estimates in valuing
purchased technology, customer lists and other identifiable intangible assets include future cash
flows that we expect a marketplace participant would generate from the acquired assets. If the
subsequent actual results and updated projections of the underlying business activity change
compared with the assumptions and projections used to develop these values, we could experience
impairment charges. In addition, we have estimated the economic lives of certain acquired assets
and these lives are used to calculate depreciation and amortization expense. If our estimates of
the economic lives change, depreciation or amortization expenses could be accelerated or slowed.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Goodwill</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We test goodwill for impairment at the reporting unit level at least annually using a two-step
process, and more frequently upon the occurrence of certain triggering events. Only our Heavy Duty
Diesel Systems reporting unit has goodwill subject to impairment testing, which totalled $4.6
million and $4.2&nbsp;million at December&nbsp;31, 2010 and 2009, respectively. Goodwill impairment testing
requires us to estimate the fair value of the reporting unit. The estimate of fair value is based
on internally developed assumptions approximating those that a market participant would use in
valuing the reporting unit. We derived the estimated fair value of the Heavy Duty Diesel Systems
reporting unit at December&nbsp;31, 2010 primarily from a discounted cash flow model. Significant
assumptions used in deriving the fair value of the reporting unit included: annual revenue growth
over the next six years ranging from -0.9% to 50.2%, long-term revenue growth of 3% and a discount
rate of 25.5%. We deemed that estimating cash flows discretely for six years was the most
appropriate for our Heavy Duty Diesel Systems division reporting unit, as this division&#146;s business
growth is driven by changes in the regulation of diesel emissions. We anticipate the changing
regulation of diesel emission in various countries over this period as well as the number of
vehicles that will need to have updated emission systems installed. We believe that we have a
reasonable estimate of the opportunities over this period. These new emission regulations are a
driver of business growth for our Heavy Duty Diesel Systems division. In order to take into account
the business implications of such regulations and the population of vehicles that must meet those
regulations, we estimated revenues and cash flows to meet the demands of this marketplace for a six
year time period. The discount rate of 25.5% was developed based on a weighted cost of capital
(WACC)&nbsp;analysis. Within the WACC analysis, the cost of equity assumption was developed using the
Capital Asset Pricing Model (CAPM). The inputs in both the CAPM and the cost of debt assumption
utilized in the WACC were developed for our Heavy Duty Diesel Systems division reporting unit using
data from comparable companies. While the revenue growth rates used are consistent with our
historical growth patterns and consider future growth potential identified by management, there is
no assurance such growth will be achieved. In addition, we considered the overall fair value of our
reporting units as compared to our fair value. Because the estimated fair value of the reporting
unit exceeded its carrying value by 64%, we determined that no goodwill impairment existed as of
December&nbsp;31, 2010. However, it is reasonably possible that future results may differ from the
estimates made during 2010 and future impairment tests may result in a different conclusion for the
goodwill of our Heavy Duty Diesel Systems division reporting unit. In addition, the use of
different estimates or assumptions by management could lead to different results. Our estimate of
fair value of the reporting unit is sensitive to certain factors, including but not limited to the
following: movements in our share price, changes in discount rates and our cost of capital, growth
of the reporting unit&#146;s revenue, cost structure of the reporting unit, successful completion of
research and
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">development, capital expenditures, customer acceptance of new products, competition, general
economic conditions and approval of the reporting unit&#146;s product by regulatory agencies.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Impairment of Long-Lived Assets Other Than Goodwill</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We evaluate long-lived assets, including intangible assets other than goodwill, for impairment
whenever events or changes in circumstances indicate that the carrying value of an asset may not be
recoverable. An impairment is considered to exist if the total estimated future cash flows on an
undiscounted basis are less than the carrying amount of the assets. If an impairment does exist, we
measure the impairment loss and record it based on discounted estimated future cash flows. In
estimating future cash flows, we group assets at the lowest level for which there are identifiable
cash flows that are largely independent of cash flows from other asset groups. Considerable
judgment is necessary to estimate the fair value of the assets and, accordingly, actual results
could vary significantly from such estimates. Our most significant estimates and judgments relating
to the long-lived asset impairments include the timing and amount of projected future cash flows.
These estimates and judgments are based upon, among other things, certain assumptions about
expected future operating performance and growth rates and other factors, actual results of which
may vary significantly. In 2008, we recorded a $4.9&nbsp;million impairment charge and wrote down the
assets of our Catalyst division to fair value. In 2009 and again in 2010, we considered whether any
events or changes in circumstance indicated that the carrying amount of our Catalyst division&#146;s
long-lived assets, totalling $0.7&nbsp;million at December&nbsp;31, 2010, may not be recoverable. With the
disruption of sales described in &#147;&#151;Factors Affecting Future Results&#148; below, we conducted a
recoverability test on the fixed assets of the Catalyst division as of June&nbsp;30, 2010 and concluded
that the expected undiscounted cash flows associated with the assets substantially exceed their
carrying value. Our analysis utilized two different scenarios over a five year period with a
probability weighting. One scenario assumed no additional program wins while the other scenario was
based on a set of assumed program wins, resulting of revenue growth ranging from zero to 35% over
the next 5&nbsp;years. Each scenario also included a terminal value based upon an estimated value of
intellectual property that could be sold off. No events occurred during the second half of 2010
that significantly altered the assumptions made at June&nbsp;30, 2010 and would necessitate further
analysis. For the remaining long-lived assets, all of which are included in the Heavy Duty Diesel
Systems reporting unit, we concluded the expected undiscounted cash flows associated with these
assets substantially exceed their carrying value. In the event that actual results differ from our
forecasts or the future outlook diminishes, the future cash flows and fair value of these assets
could potentially decrease in the future, requiring further impairment charges. Although we
believe the assumptions and estimates made in the past have been reasonable and appropriate,
different assumption and estimates could materially affect our reported financial results. To the
extent additional events or changes in circumstances occur, we may conclude that a non-cash
impairment charge against earnings is required, which could have an adverse effect on its financial
condition and results of operations.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Fair Value of Embedded Financial Instruments</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The secured convertible notes issued to investors by CSI prior to the Merger (see &#147;&#151; Recent
Developments &#151; CSI Pre-Merger Capital Raise&#148; below) contain two embedded financial instruments
that require separate accounting at fair value: the premium redemption feature and the contingent
equity forward. The estimate of fair value of such financial instruments involves the exercise of
significant judgment and the use of estimates by management.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The premium redemption instrument represents the fair value of the additional penalty premium
of two times (2x) the outstanding principal amount plus the default interest that would have been
due if the secured convertible notes were in default. Because the noteholders had the option of
demanding payment or providing additional time extensions after August&nbsp;2, 2010, this instrument was
considered a put option. We estimated the fair value of the premium redemption instrument by
calculating the present value of $4.0&nbsp;million plus accrued interest, based on an assumed payment
date (eleven months after default date) using a high yield discount rate of 17%, multiplied by an
estimated probability of its exercise. Because the secured convertible notes were converted into
CSI common stock immediately prior to the Merger, the premium redemption instrument expired
unexercised, resulting in gain of $0.7&nbsp;million. This amount represents the difference between the
initial proceeds allocated to the instrument and its ultimate fair value of zero.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The contingent equity forward represents the additional $2.0&nbsp;million that the investors
committed to fund immediately prior to closing of the Merger. Because the funding would only have
occurred from the same events that caused the secured convertible notes to automatically convert to
CSI equity prior to the Merger, we considered it a commitment to purchase equity. We estimated its
fair value based on the intrinsic value of the forward,
</DIV>

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</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">discounted at a risk free rate multiplied by the estimated probability that the forward will fund.
During the year ended December&nbsp;31, 2010, we recognized a loss of $1.0&nbsp;million. This reflects the
difference between the intrinsic value on the settlement date of $1.7&nbsp;million and the initial
proceeds allocated to the instrument of $0.7&nbsp;million.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Stock-Based Compensation Expense</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We account for share-based compensation using fair value recognition and record stock-based
compensation as a charge to earnings net of the estimated impact of forfeited awards. As such, we
recognize stock-based compensation cost only for those stock-based awards that are estimated to
ultimately vest over their requisite service period, based on the vesting provisions of the
individual grants.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The process of estimating the fair value of stock-based compensation awards and recognizing
stock-based compensation cost over their requisite service period involves significant assumptions
and judgments. We estimate the fair value of stock option awards on the date of grant using a Monte
Carlo univariate pricing model for awards with market conditions and the Black-Scholes
option-valuation model for the remaining awards, which requires that we make certain assumptions
regarding: (i)&nbsp;the expected volatility in the market price of our common stock; (ii)&nbsp;dividend
yield; (iii)&nbsp;risk-free interest rates; and (iv)&nbsp;the period of time employees are expected to hold
the award prior to exercise (referred to as the expected holding period). As a result, if we
revise our assumptions and estimates, our stock-based compensation expense could change materially
for future grants.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Warrant Derivative Liability</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In light of the terms of certain of our outstanding warrants, we have determined that we are
required to carry them at fair value until exercised or expired, and record changes in their fair
value recorded in our results of operations in each reporting period. At December&nbsp;31, 2010, we had
a liability of $1.2&nbsp;million related to liability-classified warrants. For the year ended December
31, 2010, we recorded a non-cash charge of $0.8&nbsp;million to other expense in our statement of
operations to reflect the change in fair value of these liability-classified warrants. The
determination of fair value requires the use of judgment and estimates by management. For common
stock warrants with market conditions, we use the Monte Carlo pricing model to determine fair value
on the grant date. For other common stock warrants, we use the Black-Scholes option-valuation
model, which requires that we make certain assumptions regarding: (i)&nbsp;the expected volatility in
the market price of our common stock; (ii)&nbsp;dividend yield; (iii)&nbsp;risk-free interest rates; and (iv)
the contractual terms of the warrants. These variables are projected based on our historical data,
experience, and other factors. Changes in any of these variables could result in material
adjustments to the expense recognized for changes in the valuation of the warrant derivative
liability.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Recent Accounting Pronouncements</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In January&nbsp;2010, the Financial Accounting Standards Board, or FASB, issued guidance designed
to improve disclosures about fair value measurements. The guidance requires reporting entities to
make new disclosures about recurring or nonrecurring fair value measurements, including significant
transfers into and out of Level 1 and Level 2 fair value measurements, and provide information on
purchases, sales, issuances, and settlements on a gross basis in the reconciliation of fair value
measurements using significant unobservable inputs (Level 3). The guidance is effective for annual
reporting periods beginning after December&nbsp;15, 2009, except for Level 3 reconciliation disclosures,
which are effective for annual periods beginning after December&nbsp;15, 2010. We have included such
additional disclosures in our consolidated financial statements included elsewhere in this Annual
Report on Form 10-K.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In December&nbsp;2010, the FASB issued <I>ASU 2010-28, Intangibles &#151;Goodwill and Other (Topic 350):
When to Perform Step 2 of the Goodwill Impairment Test for Reporting Units with Zero or Negative
Carrying Amounts (ASU 2010-28</I>) to clarify when testing for goodwill impairment is required. The
modifications clarify that when the carrying amount of a reporting unit is zero or negative, an
entity must assume that it is more likely than not that a goodwill impairment exists, perform an
additional test to determine whether goodwill has been impaired and calculate the amount of that
impairment. The modifications are effective for fiscal years beginning after December&nbsp;15, 2010 and
interim periods within those years. Early adoption is not permitted. We do not expect the
adoption of this accounting update to have an impact on our financial statements.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In December&nbsp;2010, the FASB issued <I>ASU No.&nbsp;2010-29, Disclosure of Supplementary Pro Forma
Information for Business Combinations</I>. The amendments in this update specify that if a public
entity presents comparative
</DIV>

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</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">financial statements, the entity should disclose revenue and earnings of the combined entity as
though the business combination(s) that occurred during the current year had occurred as of the
beginning of the comparable prior annual reporting period only. The amendments also expand the
supplemental pro forma disclosures under ASC Topic 805 to include a description of the nature and
amount of material, nonrecurring pro forma adjustments directly attributable to the business
combination included in the reported pro forma revenue and earnings. The amendments in this Update
are effective prospectively for business combinations for which the acquisition date is on or after
the beginning of the first annual reporting period beginning on or after December&nbsp;15, 2010. Early
adoption is permitted. We will adopt this accounting update for acquisitions with acquisition dates
on or after January&nbsp;1, 2011, as required.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;For additional discussion regarding these, and other recent accounting pronouncements, see
Note 2 to our consolidated financial statements included elsewhere in this Annual Report on Form
10-K.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Recent Developments</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt"><B><I>New Financing Agreement with FGI; repayment of Fifth Third Bank</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On February&nbsp;14, 2011, we and certain of our subsidiaries entered into separate Sale and
Security Agreements with Faunus Group International, Inc., or FGI, to provide for a $7.5&nbsp;million
secured demand financing facility backed by our receivables and inventory. On February&nbsp;16, 2011,
we used approximately $2.1&nbsp;million of proceeds from advances under this facility to pay in full the
balance of our obligations under our credit facility with Fifth Third Bank. For more information
relating to the FGI and Fifth Third facilities, see &#147;&#151; Description of Indebtedness&#148; below and
Notes 10 and 21 to our consolidated financial statements included elsewhere in this Annual Report
on Form 10-K.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Loan from Shareholder; Repayment of Settlement Obligation</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On December&nbsp;30, 2010, we executed a Loan Commitment Letter with Kanis S.A., a shareholder of
our company, pursuant to which Kanis S.A. loaned us $1.5&nbsp;million. The unsecured loan bears interest
on the unpaid principal at a rate of six percent (6%) per annum, with interest only payable
quarterly on each March&nbsp;31, June&nbsp;30, September&nbsp;30 and December&nbsp;31, commencing March&nbsp;31, 2011 and
matures on June&nbsp;30, 2013. For more information relating to Kanis S.A. loan, see &#147;&#151; Description of
Indebtedness&#148; below and Note 10 to our consolidated financial statements included elsewhere in this
Annual Report on Form 10-K. As contemplated by the loan commitment, on December&nbsp;30, 2010 we issued
Kanis S.A. warrants to acquire 25,000 shares of our common stock at $10.40 per share, which
warrants are exercisable on or after June&nbsp;30, 2013 and expire on the earlier of (x)&nbsp;June&nbsp;30, 2016
and (y)&nbsp;the date that is 30&nbsp;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&nbsp;30, 2013. We did not receive
any cash consideration for the issuance of the warrants and relied on the private placement
exemption provided by Regulation&nbsp;S.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On January&nbsp;4, 2011, using proceeds of the loan from Kanis S.A.  and cash on hand, we paid
in full our obligation to make subsequent payments under our October&nbsp;20, 2010 settlement agreement
with respect to the litigation and other disputes in connection with our purchase of Applied
Utility Systems assets in August&nbsp;2006. For more information relating to the settlement agreement,
see &#147;&#151;Settlement of Litigation and Disputes Regarding August&nbsp;2006 Purchase of Applied Utility
Systems&#148; below and Note 19 to our consolidated financial statements included elsewhere in this
Annual Report on Form 10-K.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Settlement of Litigation and Disputes Regarding August&nbsp;2006 Purchase of Applied Utility Systems</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On October&nbsp;20, 2010, we  entered into a comprehensive agreement with M.N.
Mansour and M.N. Mansour, Inc. to end all outstanding litigation and arbitration claims and other
disputes between the parties relating to the agreements entered into in connection with the August
2006 purchase of Applied Utility Systems assets. As contemplated by the settlement agreement, on
October&nbsp;22, 2010, we made an initial payment of $1.5&nbsp;million and in the agreement, commitment to
pay up to an additional $2.0&nbsp;million in eight equal installments through the period ending
September&nbsp;30, 2012. In January 2011, we paid in full these subsequent payment obligations using
the proceeds from the Kanis S.A. loan described above. For more information relating to the
settlement agreement, see Note 19 to our consolidated financial statements included elsewhere in
this Annual Report on Form 10-K.
</DIV>

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</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Closing of Merger</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On October&nbsp;15, 2010, following receipt of necessary shareholder approvals, our wholly-owned
subsidiary, CDTI Merger Sub, Inc., merged with and into CSI, with CSI as the surviving corporation
pursuant to the Merger Agreement. CSI is now our wholly-owned subsidiary. Immediately prior to
the Merger, and as contemplated by the Merger Agreement, a one-for-six reverse stock split took
effect.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the terms of the Merger Agreement, each outstanding share of (i)&nbsp;CSI Class&nbsp;A
Common Stock was converted into and became exchangeable for 0.007888 fully paid and non-assessable
shares of our common stock on a post-split basis (with any fractional shares to be paid in cash)
and warrants to acquire 0.006454 fully paid and non-assessable shares of our common stock for $7.92
per share on a post-split basis (Merger Warrants); and (ii)&nbsp;CSI Class&nbsp;B Common Stock was converted
into and became exchangeable for 0.010039 fully paid and non-assessable shares of our common stock
on a post-split basis (with any fractional shares to be paid in cash). Accordingly, we issued
611,017 shares of common stock (including 9,859 shares reserved for CSI&#146;s outstanding in-the-money
warrant) and warrants to purchase 499,915 shares of common stock (including 8,067 warrants reserved
for issuance for CSI&#146;s outstanding in-the-money warrants) in exchange for all outstanding CSI Class
A Common Stock and 1,510,189 shares of common stock in exchange for all outstanding CSI Class&nbsp;B
Common Stock. In connection with the Merger and as contemplated by the Merger Agreement, we also
issued 166,666 shares of our common stock on a post-split basis and Merger Warrants to purchase an
additional 166,666 shares of common stock on a post-split basis to Allen &#038; Company LLC, CSI&#146;s
financial advisor. The Merger Warrants expire on the earlier of (x)&nbsp;October&nbsp;15, 2013 (the third
anniversary of the effective time of the Merger) and (y)&nbsp;the date that is 30&nbsp;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. Accordingly, we issued (or
reserved for issuance pursuant to CSI&#146;s outstanding &#147;in-the-money&#148; warrants) 2,287,872 shares of
our common stock and warrants to purchase an additional 666,581 shares of our common stock in
connection with the Merger, in each case reflecting the elimination of fractional shares that were
cashed out in accordance with the Merger Agreement. Based on the closing price of $4.90 per share
of our common stock on The NASDAQ Capital Market on October&nbsp;15, 2010, the last trading day before
the effectiveness of the reverse stock split and the closing of the Merger, the aggregate value of
our common stock issued in connection with the Merger was approximately $11,210,572.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Immediately prior the Merger, the investors in CSI&#146;s capital raise (described below under
&#147;&#151;CSI Pre-Merger Capital Raise&#148;) acquired the remaining $2.0&nbsp;million principal amount of secured
convertible notes, and all $4.0&nbsp;million of CSI&#146;s secured convertible notes converted into CSI&#146;s
Class&nbsp;B common stock, which was then exchanged for shares of our common stock at the effective time
of the Merger. Immediately prior the Merger, CSI also issued additional shares of common stock
(which was designated as Class&nbsp;A common stock) to its then non-employee Directors, which along with
$0.1&nbsp;million in cash, as payment in full for accrued Directors fees for periods prior to January&nbsp;1,
2010.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Prior to the Merger, CDTI also completed its Regulation&nbsp;S private placement, and sold units
consisting of 109,020 shares of our common stock on a post-split basis and warrants to purchase
166,666 shares of our common stock on a post-split basis for approximately $1.0&nbsp;million in cash
before commissions and expenses. The warrants issued in our Regulation&nbsp;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)&nbsp;October&nbsp;15, 2013 (the third anniversary of the effective time of the Merger) and
(ii)&nbsp;the date that is 30&nbsp;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. We also issued 32,414 shares and warrants to purchase an additional 14,863
shares, each on a post-split basis after eliminating fractional shares, as compensation for
services rendered in connection with the Merger and our Regulation&nbsp;S offering.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Merger was accounted for as a reverse acquisition and, as a result, our (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&nbsp;15, 2010, the date of the closing of the Merger.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>CSI Pre-Merger Capital Raise</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On June&nbsp;2, 2010, CSI entered into agreements with a group of accredited investors providing
for the sale of an aggregate $4.0&nbsp;million of secured convertible notes. As provided in the
agreements, $2.0&nbsp;million of the secured convertible notes were issued by CSI in four equal
installments ($500,000 on each of June&nbsp;2, 2010, June&nbsp;8, 2010,
</DIV>

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</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">June&nbsp;28, 2010 and July&nbsp;12, 2010), with the remaining $2.0&nbsp;million issued on October&nbsp;15, 2010
immediately prior to the Merger. The aggregate $4.0&nbsp;million of secured convertible notes was
converted into newly created &#147;Class&nbsp;B&#148; common stock immediately prior to the Merger such that at
the effective time of the Merger, this group of accredited investors received approximately 66% of
the shares of Clean Diesel common stock (but not warrants to purchase Clean Diesel common stock)
issued to CSI&#146;s stockholders in the Merger.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;One of the members of our Board of Directors, Mr.&nbsp;Alexander (&#147;Hap&#148;) Ellis, III, is a partner
of RockPort Capital Partners. RockPort Capital Partners subscribed for a portion of the secured
convertible notes as part of the capital raise. For a description of the specific terms of the
secured convertible notes, see &#147;&#151;Description of Indebtedness &#151; Secured Convertible Notes&#148; below.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Asian Joint Venture</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In February&nbsp;2008, CSI entered into an agreement with Tanaka Kikinzoku Kogyo Kabushiki Kaisha,
or TKK, to form a new joint venture company, TC Catalyst Incorporated, or TCC, to manufacture and
distribute catalysts in China, Japan, South Korea and other Asian countries. In December&nbsp;2008, TKK
and CSI agreed to modify the terms of the joint venture whereby CSI sold 40% of its ownership
interest in TCC to TKK for $0.4&nbsp;million, reducing its ownership share of TCC from 50% to 30%.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In December&nbsp;2009, TKK and CSI further modified the terms of the joint venture agreement,
whereby CSI sold 83% of its remaining ownership of TCC to TKK for $0.1&nbsp;million reducing its
ownership share from 30% to 5%. CSI also agreed to sell and transfer additional specific three-way
catalyst technology and intellectual property for use in the Asia-Pacific territories for $3.9
million to TKK, and TKK agreed to provide that intellectual property to TCC on a royalty-free
basis. CSI recognized a gain of $3.9&nbsp;million in January&nbsp;2010. The promissory note from TCC with a
remaining balance of JPY 250&nbsp;million was retired in December&nbsp;2009. In 2010, pursuant with the terms
of the joint venture agreement, we loaned TCC $0.4&nbsp;million to fund operations, which we recognized
as an investment in the subsidiary. For additional information relating to our Asian Joint
Venture, see Note&nbsp;16 to our consolidated financial statements included elsewhere in this Annual
Report on Form 10-K and &#147;Business&#151;Sales and Marketing&#151;Asian Joint Venture.&#148;
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Catalyst Division Restructuring</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Beginning in 2008 and continuing through 2009, CSI initiated a series of restructuring
activities as a result of a strategic review of our Catalyst division. These activities included
reducing workforce by approximately 55% to eliminate excess capacity, consolidating certain
functions to eliminate redundancies between engineering and manufacturing, focusing its marketing
and product development strategies around heavy duty diesel catalysts and existing and selected new
customers in the light duty vehicle market. The overall objectives of the restructuring activities
were to lower costs and position the Catalyst division to break even at lower sales and to make
this division profitable. To date, these efforts have helped enhance our ability to reduce
operating losses, retain and expand existing relationships with existing customers and attract new
business. The benefits of this cost reduction were realized partially in the year ended December
31, 2009 and the full effect of actions taken during 2009 was realized in the year ended December
31, 2010. The Company estimates that these efforts have reduced the cost structure of this division
by approximately $12&nbsp;million on an annualized basis. In connection with these efforts, we incurred
$2.7&nbsp;million of severance and recapitalization charges in the year ended December&nbsp;31, 2009. These
charges primarily included charges for severance payments for headcount reduction and fees for
strategic advisors.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A reconciliation of accrued severance and related expenses are as follows (in thousands):
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="88%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR></TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Accrued severance at December&nbsp;31, 2008</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">187</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Accrued severance expense during 2009</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,429</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Paid severance expense during 2009</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(946</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Accrued severance at December&nbsp;31, 2009</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">670</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Accrued severance expense during 2010</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">261</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Paid severance expense during 2010</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(673</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Accrued severance at December&nbsp;31, 2010</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">258</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We may utilize similar measures in the future to realign our operations to further increase
our operating efficiencies, which may materially affect our future operating results. Our ability
to implement corresponding
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->33<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">significant reductions in our costs by making significant additional structural changes in our
operations in the future may be limited.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Factors Affecting Future Results</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The recently completed Merger (described above under &#147;&#151;Recent Developments&#151;Closing of
Merger&#148;) will have an impact on our future results as we will consolidate CDTI&#146;s results of
operations for periods after the effective time of the Merger.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The nature of our business and, in particular, our Heavy Duty Diesel Systems division, is
heavily influenced by government funding of emissions control projects and increased diesel
emission control regulations. Compliance with these regulatory initiatives drives demand for our
products and the timing of implementation of emission reduction projects. Notably, the retrofit
applications sold in the United States by the division are generally for funded one-off projects,
and typical end-user customers include school districts, municipalities and other fleet operators.
For example, a major project to retrofit trucks in the San Francisco area ports, was implemented in
late 2009 and the first half of 2010, resulting in growth in the retrofit systems business during
the first half of 2010. In addition, following the passage of the American Recovery and
Reinvestment Act of 2009 (commonly referred to as the Stimulus Bill), government spending (both
federal and state) increased. As such, our Heavy Duty Diesel Systems divisions had increased
revenues due to this additional funding in 2010. Notably, the draft U.S. fiscal year 2012 budget
proposes elimination of EPA funding under the Diesel Emissions Reduction Act (DERA). If passed in
current form, it would potentially have an adverse effect on retrofit system sales in 2012 and
beyond. However, funding for diesel retrofit programs in 2011 is expected to continue to accrue
from funds allocated under the Stimulus Bill and other sources such as the funding under
California&#146;s Proposition 1B and from funding provided by the U.S. Department of Transportation
under its Congestion Mitigation and Air Quality Improvement Program. In addition, government
mandates around the world are being used increasingly to combat diesel emissions. For example,
London, UK has mandated that several heavy duty diesel vehicles entering the London LEZ will be
required to meet certain emission standards by January&nbsp;2012. We believe that approximately 20,000
such vehicles will require a retrofit emission control device installed on the vehicle by year end
2011. In anticipation and preparation for sales in the London LEZ in 2011, we will incur supplier
accreditation, product verification and other expenditures relating to sales and marketing
activities before we record orders and start shipping products. While we cannot guarantee that we
will be successful in gaining any particular level of sales from the various funding sources,
emission programs and mandates, we expect to pursue these opportunities. The timing of these sales
is uncertain and could result in fluctuations in revenue from quarter to quarter during this year
and beyond.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Because the customers of our Catalyst division are auto makers, our business is also affected
by macroeconomic factors that impact the automotive industry generally, which can result in
increased or decreased purchases of vehicles, and consequently demand for our products. The global
economic crisis in the latter half of 2008 that continued through 2009 and 2010 had a negative
effect on our customers in the automotive industry. As such demand for our products, which our auto
maker customers incorporate into the vehicles they sell, decreased. In the future, if similar
macroeconomic factors or other factors affect our customer base, our revenues will be similarly
affected. In addition, two auto maker customers account for a significant portion of our Catalyst
division revenues (see Note 2 to our consolidated financial statements included elsewhere in this
Annual Report on Form 10-K). In the second half of 2010, one of these auto makers accelerated
manufacture of a vehicle that requires a catalyst product meeting a higher regulatory standard than
the product currently supplied to such auto maker by our Catalyst division. Although we had already
commenced the necessary testing and approval processes for our products under the higher regulatory
standard, such processes are not yet complete. In February&nbsp;2011, we were informed that there will
be a further delay in the completion of tests. Accordingly, we now expect lower revenues in our
Catalyst division through most of 2011. Although we expect that sales of our Catalyst products to
this auto maker will resume towards the end of 2011 once we have received the necessary regulatory
approvals and customer qualifications, there is no guarantee that this will occur. In January&nbsp;2011,
we began shipment of catalyst to a new automobile manufacturer. We expect to continue shipping
catalyst to this new customer during 2011. Demand from this customer has not yet been fully
stabilized, as it represents catalyst for a new model of automobile. We currently anticipate that
sales to this customer will partially offset the loss of sales resulting from the delayed testing
described above. In addition, one of our auto maker customers is
temporarily reducing production in light of the recent earthquake and
resulting tsunami in Japan. Although we expect sales to this
auto maker customer to return to normal levels once it is able
to address the effects of the natural disaster on its operations, at
this time we do not yet know what the effects of this action will be
on our revenues, however we anticipate that we will begin to see some
negative effects in the second quarter of 2011.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our strategy is to progressively utilize the products of our Catalyst division in the products
of our Heavy Duty Diesel Systems division. We anticipate that following approval by the regulatory
agencies sometime in the second quarter of 2011, our intercompany sales of catalysts will increase
compared to historical levels. While this will not
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->34<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">impact our reported sales, we believe that the manufacturing gross margin associated with these
sales will improve the margins of our Catalyst division and hence our total gross margin.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Results of Operations</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt"><B><I>Comparison of the Year Ended December&nbsp;31, 2010 to the Year Ended December&nbsp;31, 2009</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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 in our financial statements effective from October&nbsp;15, 2010, the date of the closing of
the Merger. As such, the amounts discussed below prior to the Merger are those of CSI and its
consolidated subsidiaries with amounts of CDTI included from the date of the Merger.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><I>Revenues</I>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The table below and the tables in the discussion that follow are based upon the way we analyze
our business. See Note 20 to our consolidated financial statements included elsewhere in this
Annual Report on Form 10-K for additional information about our divisions.
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="28%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="22" style="border-bottom: 1px solid #000000"><B>Year Ended December 31</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>% of Total</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>% of Total</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>Revenue</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>Revenue</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>$ Change</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>% Change</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="22"><B>(Dollars in millions)</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Heavy Duty Diesel Systems</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">31.2</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">64.9</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">25.9</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">51.3</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">5.3</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">20.5</TD>
    <TD nowrap>%</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Catalyst</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">17.7</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">36.8</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">25.1</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">49.7</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(7.4</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(29.5</TD>
    <TD nowrap>)%</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Intercompany revenue</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(0.8</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(1.7</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(0.5</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(1.0</TD>
    <TD nowrap>)%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(0.3</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(60.0</TD>
    <TD nowrap>)%</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" 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"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Total revenue</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">48.1</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">100.0</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">50.5</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">100.0</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(2.4</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(4.8</TD>
    <TD nowrap>)%</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total revenue for the year ended December&nbsp;31, 2010 decreased by $2.4&nbsp;million, or 4.8%, to
$48.1&nbsp;million from $50.5&nbsp;million for the year ended December&nbsp;31, 2009.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Revenues for our Heavy Duty Diesel Systems division for the year ended December&nbsp;31, 2010
increased $5.3&nbsp;million, or 20.5%, to $31.2&nbsp;million from $25.9&nbsp;million for the year ended December
31, 2009. The increase was due largely to an expansion of our distributor channels in the United
States as well as continued benefit from funding allocated to diesel emission control under the
American Recovery and Reinvestment Act of 2009 (commonly referred to as the Stimulus Bill), which
provided customers an incentive to acquire our emission control products. In addition, revenues for
the year ended December&nbsp;31, 2009 were adversely impacted by the global economic slowdown and the
California budget crisis, resulting in a favorable year-over-year comparison of the year ended
December&nbsp;31, 2010 compared to the same period in 2009. Revenues for the year ended December&nbsp;31,
2010 include $0.4&nbsp;million from CDTI&#146;s business as a result of the Merger.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Revenues for our Catalyst division for the year ended December&nbsp;31, 2010 decreased $7.4
million, or 29.5%, to $17.7&nbsp;million from $25.1&nbsp;million for the year ended December&nbsp;31, 2009. Sales
for this division decreased year-over-year as a result of an automaker accelerating the manufacture
of a vehicle that requires a catalyst product meeting a higher regulatory standard than the product
currently supplied to the automaker by our Catalyst division. We expect revenues in the Catalyst
division for the first quarter of 2011 to exceed the fourth quarter of 2010 due to the shipment of
catalysts to a new automotive customer that commenced in January&nbsp;2011. (see &#147;&#151;Factors Affecting
Future Results&#148; above).
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We eliminate intercompany sales by the Catalyst division to our Heavy Duty Diesel Systems
division in consolidation.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><I>Cost of revenues</I>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Cost of revenues decreased by $2.4&nbsp;million, or 6.2%, to $36.1&nbsp;million for the year ended
December&nbsp;31, 2010 compared to $38.5&nbsp;million for the year ended December&nbsp;31, 2009. The primary
reason for the decrease in costs was lower product sales volume in our Catalyst division, which was
partially offset by higher product sales volume in our Heavy Duty Diesel Systems division.
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->35<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><I>Gross Profit</I>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">The following table shows our gross profit and gross margin (gross profit as a percentage of
revenues) by division for the periods indicated.
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="52%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="14" style="border-bottom: 1px solid #000000"><B>Year Ended December 31</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>% of</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>% of</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>Revenue (1)</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>Revenue (1)</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="14"><B>(Dollars in millions)</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Heavy Duty Diesel Systems</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">8.9</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">28.5</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">8.2</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">31.7</TD>
    <TD nowrap>%</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Catalyst</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3.1</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">17.5</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3.8</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">15.1</TD>
    <TD nowrap>%</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" 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"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Total gross profit</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">12.0</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">24.9</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">12.0</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">23.8</TD>
    <TD nowrap>%</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>



<DIV align="left">
<DIV style="font-size: 3pt; margin-top: 16pt; width: 18%; border-top: 1px solid #000000">&nbsp;</DIV>
</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="96%"></TD>
</TR>

<TR valign="top">
    <TD nowrap align="left">(1)</TD>
    <TD>&nbsp;</TD>
    <TD>Division calculation based on division revenue. Total based on total revenue.</TD>
</TR>

</TABLE>



<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Gross profit remained steady at $12.0&nbsp;million for both the year ended December&nbsp;31, 2010
and December&nbsp;31, 2009. Gross margin increased to 24.9% for the year ended December&nbsp;31, 2010 from
23.8% for the year ended December&nbsp;31, 2009. The increase in gross profit in our Heavy Duty Diesel
Systems division, which resulted from increased sales, was offset by a decrease in gross profit in
our Catalyst division. The gross profit in our Catalyst division decreased due to lower sales,
which decline was partially offset by reductions in manufacturing overhead costs as well as
continued improvements in efficiency following restructuring efforts in 2008 and 2009.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The decrease in gross margin for our Heavy Duty Diesel Systems division is a result of changes
in overall product mix, reflecting a higher proportion of sales of a lower margin product, and
higher proportion of sales through a distributor who has a preferred purchasing arrangement. Under
this purchase arrangement, in exchange for higher volumes, the distributor receives a lower sales
price, which results in lower profit to us. We also experienced increases in platinum group metal
prices during 2010, leading to lower margins. We anticipate that the gross margin in this business
will remain at or around current levels until we are able to offset the platinum group metal price
increases in 2011 and until we start selling higher margin products in the London LEZ. (see
&#147;&#151;Factors Affecting Future Results&#148; above).
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The increase in gross margin for our Catalyst division is a result of the restructuring
actions taken within the Catalyst division. We expect continued benefit in the future from the
restructuring, however, we expect to have downward pressure on margins until the restart of the
production for one auto manufacturer and until we increase the shipment of products of our Catalyst division to our Heavy Duty
Diesel Systems division. (see &#147;&#151;Factors Affecting Future Results&#148; above).
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><I>Operating Expenses</I>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The following table shows our operating expenses and operating expenses as a percentage of
revenues for the periods indicated.
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="28%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="22" style="border-bottom: 1px solid #000000"><B>Year Ended December 31</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>% of</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>% of</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Total</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Total</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>%</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>Revenue</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>Revenue</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>$ Change</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>Change</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="22"><B>(Dollars in millions)</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Selling, general and administrative</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">11.9</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">24.8</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">12.4</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">24.5</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(0.5</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(4.0</TD>
    <TD nowrap>)%</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Research and development</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">4.4</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">9.1</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">7.3</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">14.5</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(2.9</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(39.7</TD>
    <TD nowrap>)%</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Recapitalization expenses</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3.2</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">6.7</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1.3</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">2.6</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1.9</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">146.2</TD>
    <TD nowrap>%</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Gain on sale of intellectual
property</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(3.9</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(8.1</TD>
    <TD nowrap>)%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(2.5</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(5.0</TD>
    <TD nowrap>)%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(1.4</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">56.0</TD>
    <TD nowrap>%</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Severance expense</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">0.3</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">0.6</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1.4</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">2.8</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(1.1</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(78.6</TD>
    <TD nowrap>)%</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" 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"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Total operating expenses</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">15.9</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">33.1</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">19.9</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">39.4</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(4.0</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(20.1</TD>
    <TD nowrap>)%</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In prior periods we presented &#147;Selling and marketing&#148; expenses and &#147;General and
administrative&#148; expenses separately on our statement of operations. Beginning in the year ended
December&nbsp;31, 2010, we now combine these categories of expenses into &#147;Selling, general and
administrative expenses&#148; because there is considerable overlap
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->36<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">between management functions pertaining to sales and marketing and general administrative duties,
and as such, estimating allocation of expenses associated with these overlapping functions is not
meaningful. Prior periods have been reclassified to reflect this change in presentation.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;For the year ended December&nbsp;31, 2010, operating expenses decreased by $4.0&nbsp;million, or 20.1%,
to $15.9&nbsp;million from $19.9&nbsp;million for the year ended December&nbsp;31, 2009. A significant reason for
the decrease in operating expenses was the recognition of a $3.9&nbsp;million gain in the year ended
December&nbsp;31, 2010 compared to a $2.5&nbsp;million gain in the year ended December&nbsp;31, 2009, which arose
from the sale of specific three-way catalyst technology and intellectual property to TKK, our Asian
joint venture partner (as described above under &#147;&#151;Recent Developments-Asian Joint Venture), and to
a lesser extent, continued improvements in expense management as a result of the cost reduction
efforts implemented as part of the Catalyst division restructuring. Included in operating expenses
for the year ended December&nbsp;31, 2010 were $0.8&nbsp;million related to CDTI&#146;s business as a result of
the Merger.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><I>Selling, general and administrative expenses</I>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;For the year ended December&nbsp;31, 2010, selling, general and administrative expenses decreased
by $0.5&nbsp;million, or 4.0%, to $11.9&nbsp;million from $12.4&nbsp;million for the year ended December&nbsp;31, 2009.
The reduction is primarily due to the cost reduction efforts implemented in 2008 and 2009 as part
of the Catalyst division restructuring. This was partially offset by selling, general and
administrative expenses of $0.8&nbsp;million related to CDTI&#146;s business as a result of the Merger.
Selling, general and administrative expenses as a percentage of revenues increased to 24.8% in the
year ended December&nbsp;31, 2010 compared to 24.5% in the year ended December&nbsp;30, 2009. Selling,
general and administrative expenses are expected to increase in 2011 due to the expenditures being
incurred in preparation for sales in the London LEZ (see &#147;&#151;Factors Affecting Future Results&#148;
above). We anticipate that these expense increases will be partially offset by a decrease in
expenses occurring from the efficiencies realized from the Merger.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><I>Research and development expenses</I>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;For the year ended December&nbsp;31, 2010, research and development expenses decreased by $2.9
million, or 39.7%, to $4.4&nbsp;million from $7.3&nbsp;million for the year ended December&nbsp;31, 2009. The
decrease in research and development expenses was primarily attributable to the cost reduction
efforts implemented in 2008 and 2009 as part of the Catalyst division restructuring. Research and
development expenses in the year ended December&nbsp;31, 2010 include $0.2&nbsp;million related to CDTI&#146;s
business as a result of the Merger. As a percentage of revenues, research and development expenses
were 9.1% in the year ended December&nbsp;31, 2010, compared to 14.5% in the year ended December&nbsp;31,
2009. We expect the research and development expense, as a percent of anticipated revenue, to
continue to be similar to the year ended December&nbsp;31, 2010. Research and development expenses are
expected to increase in 2011 due to the product verification expenditures being incurred in
preparation for sales in the London LEZ as well as planned sales of products of our Catalyst
division to our Heavy Duty Diesel Systems division (see &#147;&#151;Factors Affecting Future Results&#148;
above).
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><I>Recapitalization expenses</I>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;For the year ended December&nbsp;31, 2010, recapitalization expenses increased $1.9&nbsp;million, or
146.2%, to $3.2&nbsp;million from $1.3&nbsp;million for the year ended December&nbsp;31, 2009. In 2010, these
expenses represent legal and professional fees paid directly related to the Merger. In 2009, these
expenses include fees for strategic advisors in connection with the restructuring of our Catalyst
division as well as fees for advisors hired to assist us in our strategic review and efforts to
recapitalize our company.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><I>Severance expense</I>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;During the year ended December&nbsp;31, 2010, we incurred $0.3&nbsp;million of severance charges.
During the year ended December&nbsp;31, 2009, we incurred $1.4&nbsp;million of severance expense primarily
for headcount reduction in the Catalyst division (described above under &#147;&#151;Recent Developments &#151;
Catalyst Division Restructuring&#148;).
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->37<!-- /Folio -->
</DIV>

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<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><I>Other expense, net</I>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="52%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="14" style="border-bottom: 1px solid #000000"><B>Year Ended December 31</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>% of</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>% of</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Total</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Total</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>Revenue</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>Revenue</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="14"><B>(Dollars in millions)</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Interest expense</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(3.6</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(7.5</TD>
    <TD nowrap>)%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(2.3</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(4.5</TD>
    <TD nowrap>)%</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">(Loss) gain on change in fair
value of derivative financial
instruments</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(1.2</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(2.5</TD>
    <TD nowrap>)%</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">0.2</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">0.4</TD>
    <TD nowrap>%</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Foreign currency exchange losses</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(0.9</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(1.8</TD>
    <TD nowrap>)%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(1.0</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(2.1</TD>
    <TD nowrap>)%</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Gain on release of Delphi reserve</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">0.0</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">0.4</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">0.9</TD>
    <TD nowrap>%</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">All other, net</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">0.2</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">0.4</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">0.1</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">0.2</TD>
    <TD nowrap>%</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Total other expense, net</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(5.5</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(11.4</TD>
    <TD nowrap>)%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(2.6</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(5.1</TD>
    <TD nowrap>)%</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;For the year ended December&nbsp;31, 2010, we incurred interest expense of $3.6&nbsp;million
compared to $2.3&nbsp;million in the year ended December&nbsp;31, 2009. This increase is due to $3.1&nbsp;million
of non-cash interest expense on the secured convertible notes issued by CSI in June&nbsp;2010, which was
offset by reductions in our other outstanding indebtedness during the year ended December&nbsp;31, 2010
as compared to the year ended December&nbsp;31, 2009. The secured convertible notes were converted to
equity immediately prior to the Merger and are no longer outstanding. For additional information on
the secured convertible notes, see &#147;&#151;Recent Developments&#151;CSI&#146;s Pre-Merger Capital Raise&#148; above,
&#147;Description of Indebtedness-Secured Convertible Notes&#148; below and Note 10 to the consolidated
financial statements included elsewhere within this Annual Report on Form 10-K. In addition, the
year ended December&nbsp;31, 2009 included $0.3&nbsp;million in acceleration of deferred financing expense
due to the violation of covenants under our borrowing agreements with Fifth Third Bank and Cycad
Group, LLC. For additional information relating to these credit facilities, see Note 10 to the
consolidated financial statements included elsewhere within this Annual Report on Form 10-K.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;For the year ended December&nbsp;31, 2010, there was $1.1&nbsp;million in expense related to the change
in fair value of derivative financial instruments, including $0.8&nbsp;million related to liability
classified common stock warrants issued in connection with the Merger and $0.3&nbsp;million related to
derivatives instruments issued in connection with the secured convertible notes. For the year ended
December&nbsp;31, 2009, there was $0.2&nbsp;million in income related to the change in fair value of
liability classified warrants, which were reclassified to equity at the time of the Merger. The
year ended December&nbsp;31, 2009 also includes a net loss of $0.2&nbsp;million related to our Asian joint
venture and a $0.4&nbsp;million gain related to the release of a reserve when Delphi exited bankruptcy.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><I>Income taxes</I>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;For the year ended December&nbsp;31, 2010, we had income tax expense from continuing operations of
$0.01&nbsp;million compared to an income tax benefit of $1.0&nbsp;million for the year ended December&nbsp;31,
2009. The primary reason for the increase is the improved profitability of our Heavy Duty Diesel
Systems division&#146;s international operations. We have no significant tax expense in our U.S.-based
operations
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><I>Net loss</I>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;For the foregoing reasons, we had a net loss of $8.4&nbsp;million for the year ended December&nbsp;31,
2010 compared to a net loss of $8.0&nbsp;million for the year ended December&nbsp;31, 2009. Excluding net
income from discontinued operations, we had a net loss from continuing operations of $9.3&nbsp;million
for the year ended December&nbsp;31, 2010 compared to a net loss from continuing operations of $9.5
million for the year ended December&nbsp;31, 2009. We continue to have legal and other expenses related
to the 2009 divestiture of the assets of Applied Utility Systems. We record these activities as
discontinued operations. For additional information relating to Applied Utility Systems, see Note
17 to the consolidated financial statements included elsewhere within this Annual Report on Form
10-K.
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->38<!-- /Folio -->
</DIV>

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<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Liquidity and Capital Resources</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The revenue that we generate is not sufficient to fund our operating requirements and debt
servicing needs. Notably, we have suffered recurring losses and negative cash flows from
operations since inception. Our primary sources of liquidity in recent years have been asset
sales, credit facilities and other borrowings and equity sales. Such sources of liquidity,
however, have not been sufficient to provide us with financing necessary to sufficiently
capitalize our operations, and consequently, our working capital is severely limited.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;As of December&nbsp;31, 2010, we had an accumulated deficit of approximately $157.7&nbsp;million. As
of December&nbsp;31, 2009, we had an accumulated deficit of approximately $149.3&nbsp;million and a
working capital deficit of $4.4&nbsp;million. We had $5.0&nbsp;million in cash and cash equivalents at
December&nbsp;31, 2010 compared to $2.3&nbsp;million in cash and cash equivalents at December&nbsp;31, 2009,
and total current liabilities of $14.8&nbsp;million at December&nbsp;31, 2010 compared to $22.9&nbsp;million
at December&nbsp;31, 2009.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In light of the liquidity situation, in the first quarter of 2009, CSI retained Allen &#038;
Company LLC to act as a financial advisor to CSI in exploring alternatives to recapitalize CSI.
During 2009, CSI took several actions to improve its liquidity. These actions included: (i)
reduction cash used in operations through cost reductions and improved working capital
management, in particular as part of the restructuring of its Catalyst division (see &#147;&#151; Recent
Developments &#151; Catalyst Division Restructuring&#148; above), but also due to implementing policies
restricting travel, improving inventory management, and overall reductions in spending; (ii)
improved operating efficiencies in light of installation of a new ERP system in 2008 (which
lowered capital expenditures in 2009); (iii)&nbsp;capital expenditures have been reduced to
necessary maintenance and targeted investments to improve processes or products; (iv)
additional asset sales, including the sale of the assets of Applied Utility Systems and sale of
intellectual property; (v)&nbsp;repayment of debt, including pay off of Cycad Group, LLC, and (vi)
entering into forbearance agreements with Fifth Third Bank to temporarily suspend its rights
under the credit facility for a period of time (see &#147;&#151;Description of Indebtedness &#151; Fifth
Third Bank&#148; below). Notwithstanding the foregoing actions, CSI&#146;s access to working capital
continued to be limited and its debt service obligations and projected operating costs for 2010
exceeded its cash balance at December&nbsp;31, 2009.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In the first half of 2010, CSI continued to work on its efforts to recapitalize its
business and in May&nbsp;2010, entered into the Merger Agreement and in June&nbsp;2010 undertook the $4.0
million capital raise described above under &#147;&#151;Recent Developments &#151; CSI&#146;s Pre-Merger Capital
Raise,&#148; and continued to seek forbearance from its lender Fifth Third Bank. Also, on October
15, 2010, CSI and CDTI completed the Merger. The Merger was initially anticipated to provide
sufficient cash to the combined company, however, unforeseen delays in completing the Merger
led to significantly higher transactional costs for both CDTI and CSI. In addition, the anticipated
reduction in Catalyst sales discussed above, has resulted in lower anticipated cash inflows.
Thus, our post-Merger company has less cash than we need to incur sales, marketing and product
verification expenditures in advance of realizing sales in the London LEZ and expenditures
needed to complete verification of certain products of our Catalyst division for use in the
products of our Heavy Duty Diesel Systems division. Although in February&nbsp;2011 we entered into
the FGI financing facility and repaid Fifth Third Bank, our access to working capital continues
to be limited and our debt service obligations and projected operating costs for 2011 exceed
our cash balance at December&nbsp;31, 2010. As a result of the preceding factors, our auditors&#146;
report for fiscal 2010 includes an explanatory paragraph that expresses substantial doubt about
our ability to continue as a &#147;going concern.&#148;
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Although we are working diligently to secure additional sources of debt and/or equity
financing, at this time no assurances can be provided that we will have sufficient cash and
credit to sustain operations or that we will be successful in obtaining additional funding.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The following table summarizes our cash flows for the years ended December&nbsp;31, 2010 and
2009.
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="52%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="14" style="border-bottom: 0px solid #000000"><B>Year Ended December 31</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD style="border-bottom: 1px solid #000000">&nbsp;</TD>
    <TD style="border-bottom: 1px solid #000000">&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
    <TD style="border-bottom: 1px solid #000000">&nbsp;</TD>
    <TD style="border-bottom: 1px solid #000000">&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>$ Change</B></TD>
    <TD style="border-bottom: 1px solid #000000">&nbsp;</TD>
    <TD style="border-bottom: 1px solid #000000">&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>% Change</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="14"><B>(Dollars in millions)</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Cash provided by (used in):</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Operating activities</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(4.3</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(7.4</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">3.1</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(41.9</TD>
    <TD nowrap>)%</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Investing activities</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">5.1</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">13.4</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(8.3</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(61.9</TD>
    <TD nowrap>)%</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Financing activities</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">2.0</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(10.5</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">12.5</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(119.0</TD>
    <TD nowrap>)%</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->39<!-- /Folio -->
</DIV>

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<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">


<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><I>Cash provided by (used in) operating activities</I>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our largest source of operating cash flows is cash collections from our customers following
the sale of our products and services. Our primary uses of cash for operating activities are for
purchasing inventory in support of the products that it sells, personnel related expenditures,
facilities costs and payments for general operating matters.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Cash used in operating activities in the year ended December&nbsp;31, 2010 was $4.3&nbsp;million, a
decrease of $3.1&nbsp;million from year ended December&nbsp;31, 2009, when our operating activities used
$7.4&nbsp;million of cash. This improvement was partially due to a
$2.4&nbsp;million decrease in net loss
from continuing operations in the year ended December&nbsp;31, 2010 as compared to the year ended
December&nbsp;31, 2009, after giving consideration to non-cash operating items, including
depreciation and amortization, stock-based compensation, amortization of deferred financing
costs, deferred income taxes, gain on sale of intellectual property, among others for both
periods and non-cash interest and other expenses related to the secured convertible notes in
2010 and a gain on sale of unconsolidated subsidiary in 2009. The decrease in net loss from
continuing operations was due to lower operating expenses in the year ended December&nbsp;31, 2010
as compared to the year ended December&nbsp;31, 2009, as discussed above. The change in net
operating assets and liabilities was $3.9&nbsp;million in the year ended December&nbsp;31, 2010 as
compared to $2.4&nbsp;million in the year ended December&nbsp;31, 2009. There was a $6.0&nbsp;million decrease
in cash used related to the change in accounts receivable due to lower revenues in the last two
months of 2010 as compared to the same period of 2009. There was a decrease in revenues in the
last two months of 2010 as compared to 2009 at our Heavy Duty Diesel Systems division of $2.8
million, which had a significant project in process at the end of 2009. There was also a
decrease of $1.9&nbsp;million at our Catalyst division, which had no sales in the last two months of
2010 to a customer that discontinued purchases of our product pending verification of our
products for newer emission standards. This was partially offset by increases in cash used
related to the change in inventories and accounts payable resulting from our overall reduced
sales levels at the end of 2010 as compared to 2009 as well as an increase in cash used related
to the change in income taxes payable.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><I>Cash provided by investing activities</I>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our cash flows from investing activities primarily relate to asset sales and acquisitions,
our investment in the Asian joint venture as well as capital expenditures and other assets to
support our growth plans.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net cash generated by investing activities was $5.1&nbsp;million in the year ended December&nbsp;31,
2010; a decrease of $8.3&nbsp;million as compared to the $13.4&nbsp;million generated by investing
activities in the year ended December&nbsp;31, 2009. The year ended December&nbsp;31, 2010 includes net
cash acquired of $3.9&nbsp;million related to the Merger with CDTI and $2.0&nbsp;million received from
the sale of intellectual property to TKK partially offset by an additional investment of $0.4
million made in the Asian joint venture as compared to the year ended December&nbsp;31, 2009 which
included $8.6&nbsp;million of proceeds from the sale of the assets of Applied Utility Systems and
$5.4&nbsp;million of proceeds from the sale of intellectual property and a share in the Asian joint
venture to our joint venture partner TKK.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><I>Cash provided by financing activities</I>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Since inception, we have financed our net operating cash usage through a combination of
financing activities such as issuance of equity or debt and investing activities such as sale
of intellectual property or other assets. Changes in our cash flows from financing activities
primarily relate to borrowings and payments under debt obligations.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net cash provided by financing activities was $2.0&nbsp;million in the year ended December&nbsp;31,
2010; a $12.5&nbsp;million increase as compared to net cash used in financing activities of $10.5
million in the year ended December&nbsp;31, 2009. Cash provided by financing in the year ended
December&nbsp;31, 2010 includes $4.0&nbsp;million in proceeds from the issuance of the secured
convertible notes, $1.5&nbsp;million in proceeds from the shareholder loan and proceeds of $1.4
million received related to the exercise of warrants, partially offset by a $1.5&nbsp;million
payment pursuant to the October&nbsp;20, 2010 settlement agreement, a net decrease of $3.0&nbsp;million
under the line of credit with Fifth Third Bank and the payment of $0.3&nbsp;million in debt issuance
costs. During the year ended December&nbsp;31, 2009, we reduced secured debt by $9.7&nbsp;million
including $6.8&nbsp;million in fixed term loans and reduced borrowing under a line of credit of $2.9
million.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Description of Indebtedness</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our outstanding borrowing at December&nbsp;31, 2010 and December&nbsp;31, 2009 are summarized as
follows:
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->40<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6" style="border-bottom: 0px solid #000000"><B>December 31,</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD style="border-bottom: 1px solid #000000">&nbsp;</TD>
    <TD style="border-bottom: 1px solid #000000">&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6"><B>(Dollars in millions)</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Line of credit</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">2.4</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">5.1</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Loan from shareholder</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1.4</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Consideration payable</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3.0</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Capital lease obligations</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">0.1</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">0.1</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Total borrowings</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">3.9</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">8.2</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Subsequent to year end, we have repaid in full the line of credit with Fifth Third Bank and
entered into a new financing facility with Faunus Group International, Inc., or FGI.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>FGI Financing Facility</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On February&nbsp;14, 2011, we and certain of our subsidiaries entered into separate Sale and
Security Agreements with FGI to provide for a $7.5&nbsp;million secured demand facility backed by our
receivables and inventory. We refer to this receivables/inventory borrowing as the FGI facility.
The FGI facility has an initial two-year term and may be extended at our option for additional
one-year terms. In addition to our company, the following subsidiaries entered into Sale and
Security Agreements with FGI: CSI, Engine Control Systems Limited, Engine Control Systems Ltd. and
Clean Diesel International, LLC (the &#147;Credit Subsidiaries&#148;). We and the Credit Subsidiaries also
entered into guarantees to guarantee the performance of the others of their obligations under the
Sale and Security Agreements. We also granted FGI a first lien collateral interest in substantially
all of our assets. On February&nbsp;16, 2011, approximately $2.1&nbsp;million of proceeds from advances under
this facility were used to pay in full the balance of our obligations under the Second Amended and
Restated Loan Agreement dated as of June&nbsp;27, 2008 with Fifth Third Bank.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Under the FGI facility, FGI can elect to purchase eligible accounts receivables from us and
the Credit Subsidiaries at up to 80% of the value of such receivables (retaining a 20% reserve). At
FGI&#146;s election, FGI may advance us up to 80% of the value of any purchased accounts receivable,
subject to the $7.5&nbsp;million limit. Reserves retained by FGI on any purchased receivable are
expected to be refunded to us net of interest and fees on advances once the receivables are
collected from customers. We may also borrow up to $1&nbsp;million against eligible inventory subject to
the aggregate $7.5&nbsp;million limit under the FGI facility and certain other conditions. The interest
rate on advances or borrowings under the FGI facility will be the greater of (i)&nbsp;7.50% per annum
and (ii)&nbsp;2.50% per annum above the Wall Street Journal &#147;prime rate.&#148; Any advances or borrowings
under the FGI facility are due on demand. We also agreed to pay FGI collateral management fees of:
0.44% per month on the face amount of eligible receivables as to which advances have been made and
0.55% per month on borrowings against inventory, if any. At any time outstanding advances or
borrowings under the FGI facility are less than $2.4&nbsp;million, we agreed to pay FGI standby fees of
(i)&nbsp;the interest rate on the difference between $2.4&nbsp;million and the average outstanding amounts
and (ii)&nbsp;0.44% per month on 80% of the amount by which our advances or borrowings are less than the
agreed $2.4&nbsp;million minimum.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We paid FGI a one time facility fee of $75,000 upon entry into the FGI facility, and agreed
that we will pay a $150,000 termination fee if we terminate within the first 360&nbsp;days ($76,000 if
we terminate in second 360&nbsp;days). FGI may terminate the facility at any time.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;For further information regarding our credit agreement with FGI see Note 21 to our
consolidated financial statements included elsewhere in the Annual Report on Form 10-K.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Loan from Kanis S.A.</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On December&nbsp;30, 2010, we executed a Loan Commitment Letter with Kanis S.A., a shareholder of
our company, pursuant to which Kanis S.A. loaned us $1.5&nbsp;million. The unsecured loan bears interest
on the unpaid principal at a rate of six percent (6%) per annum, with interest only payable
quarterly on each March&nbsp;31, June&nbsp;30, September&nbsp;30 and December&nbsp;31, commencing March&nbsp;31, 2011 and
matures on June&nbsp;30, 2013. In addition to principal and accrued interest, we are obligated to pay
Kanis S.A. at maturity a &#147;Payment Premium&#148; ranging from $100,000 to $200,000 based proportionally
on the number of days that the loan remains outstanding. There is no prepayment penalty.
</DIV>

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</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In connection with the loan, we issued Kanis S.A. warrants to acquire 25,000 shares of our
common stock at $10.40 per share. These warrants are exercisable on or after June&nbsp;30, 2013 and
expire on the earlier of (x)&nbsp;June&nbsp;30, 2016 and (y)&nbsp;the date that is 30&nbsp;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&nbsp;30, 2013. We have recorded the relative estimated
fair value of these warrants as a discount from the loan amount and are amortizing the discount
using the effective interest method over the term of the loan.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;For further information regarding this shareholder loan see Note 10 to our consolidated
financial statements included elsewhere in the Annual Report on Form 10-K.
</DIV>
<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Consideration Payable and Settlement Obligation
</I></B>
</DIV>
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;At December&nbsp;31, 2009, we had
$3.0&nbsp;million of consideration due to the seller as part of the Applied Utility Systems acquisition. The consideration
was originally due August&nbsp;28, 2009 and accrued interest at 5.36%. On October&nbsp;20, 2010, we entered into a
comprehensive agreement with the seller to end all outstanding litigation and arbitration claims
and other disputes between the parties relating to the agreements
entered into in connection with its purchase of Applied Utility Systems assets in August 2006 (the
&#147;Settlement Agreement&#148;). As contemplated by the Settlement Agreement, on October&nbsp;22, 2010,
we paid $1.5&nbsp;million to the seller as consideration for the settlement. We also agreed to pay up to an
additional $2.0&nbsp;million to the seller in eight equal installments through the period ending September&nbsp;30,
2012. On January&nbsp;4, 2011, using proceeds of the shareholder loan referred to above and cash on hand,
we paid the seller $1.6&nbsp;million as satisfaction in full of our obligation. This $1.6&nbsp;million is a
settlement obligation and has therefore been reclassified out of debt into current liabilities at December&nbsp;31, 2010.

</div>
<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Fifth Third Bank</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In December&nbsp;2007, CSI and its subsidiaries, including Engine Control Systems, entered into
borrowing agreements with Fifth Third Bank as part of the cash consideration paid for CSI&#146;s
December&nbsp;2007 purchase of Engine Control Systems. The borrowing agreements initially provided
for three facilities including a revolving line of credit and two term loans. The line of
credit was a two-year revolving term operating loan up to a maximum principal amount of $8.2
million (Canadian $10&nbsp;million), with availability based upon eligible accounts receivable and
inventory. The other facilities included a five-year non-revolving term loan of up to $2.5
million, which was paid off during 2008, and a non-revolving term loan of $3.5&nbsp;million which
was paid off in October&nbsp;2009.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On March&nbsp;31, 2009, CSI failed to achieve two of the covenants under its Fifth Third Bank
credit facility. These covenants related to the annualized EBITDA and the funded debt to EBITDA
ratio for its Engine Control Systems subsidiary. Beginning in March&nbsp;31, 2009 and through
repayment in full, Fifth Third Bank extended forbearance of the default, while converting the
facility into a demand facility, reducing the size of the facility and increase the rate for
borrowings. At December&nbsp;31, 2010, the credit limit under the facility was Canadian $6.0
million and the interest rate was U.S./Canadian Prime Rate plus 3.00%. The entire debt due to
Fifth Third Bank was repaid with the completion of the financing facility with FGI on February
16, 2011.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
For more information relating to the Fifth Third credit facility, see Note 10 to our
consolidated financial statements included elsewhere in the Annual Report on Form 10-K.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B><I>Secured convertible notes</I></B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In June&nbsp;2010, pursuant to the terms of its capital raise (discussed above under &#147;&#151;Recent
Developments &#151; CSI&#146;s Pre-Merger Capital Raise&#148;), CSI agreed to issue up to $4&nbsp;million of
secured convertible notes. The secured convertible notes, as amended, bore interest at a rate
of 8% per annum, provided for a maturity date of August&nbsp;2, 2010, and were secured by a
subordinated lien on CSI&#146;s assets, but were subordinated to Fifth Third Bank. As provided in
the agreements, $2.0&nbsp;million of the secured convertible notes were issued by CSI in four equal
installments ($500,000 on each of June&nbsp;2, 2010, June&nbsp;8, 2010, June&nbsp;28, 2010 and July&nbsp;12, 2010),
with the remaining $2.0&nbsp;million issued on October&nbsp;15, 2010 immediately prior to the Merger. The
aggregate $4.0&nbsp;million of secured convertible notes was converted into newly created &#147;Class&nbsp;B&#148;
common stock immediately prior to the Merger such that at the effective time of the Merger,
this group of accredited investors received approximately 66% of the shares of our common stock
(but not warrants to purchase our common stock) issued to CSI&#146;s stockholders in the Merger.
Accordingly, there are no longer any secured convertible notes issued and outstanding.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The secured convertible notes contained two embedded financial instruments that required
separate accounting at fair value: the premium redemption feature (the penalty premium under
default) and the contingent equity forward (the $2.0&nbsp;million the noteholders committed to fund
immediately prior to the Merger). The accounting for these is discussed in Note 10 to the
consolidated financial statements included elsewhere in this Annual Report on Form 10-K.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We recorded the initial value of the embedded financial instruments as a discount to the
face value of the secured convertible notes and amortized it using the effective interest
method through the original maturity date of the secured convertible notes, which was August&nbsp;2,
2010. We then re-measured the embedded financial instruments at fair value at the end of each
reporting period with recorded changes in fair value in other income
</DIV>

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</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">(expense). Upon issuance of the remaining $2.0&nbsp;million of secured convertible notes and
conversion of all $4.0&nbsp;million of secured convertible notes into Class&nbsp;B common stock on
October&nbsp;15, 2010, the remaining liability for the premium redemption feature of $0.4&nbsp;million
was reversed to other income and the liability for the contingent equity forward of $1.7
million was recognized as an increase in additional paid in capital.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The secured convertible notes included a beneficial conversion feature that was contingent
on the approval by CSI&#146;s shareholders of certain amendments to CSI&#146;s Articles of Incorporation,
which were approved on October&nbsp;12, 2010. Accordingly, the beneficial conversion feature was
recorded as additional non-cash interest expense of $1.3&nbsp;million in the three months ended
December&nbsp;31, 2010.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Capital Expenditures</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;As of December&nbsp;31, 2010, we had no commitments for capital expenditures and no material
commitments are anticipated in the near future.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Off-Balance Sheet Arrangements</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;As of December&nbsp;31, 2010 and 2009, we had no off-balance sheet arrangements.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Commitments and Contingencies</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;As of December&nbsp;31, 2010 and 2009, other than office leases and employment agreements with key
executive officers, we had no material commitments other than the liabilities reflected in our
consolidated financial statements included elsewhere in the Annual Report on Form 10-K.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Related-Party Transactions</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;RockPort Capital Partners subscribed for a portion of the secured convertible notes as part of
CSI&#146;s capital raise. One of the members of our Board of Directors (and former member of CSI&#146;s Board
of Directors), Mr.&nbsp;Alexander (&#147;Hap&#148;) Ellis, III, is a partner of RockPort Capital Partners.
Following the Merger, RockPort Capital Partners is a significant shareholder of our company.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;As part of its $4.0&nbsp;million pre-Merger capital raise, CSI agreed to pay the accrued director
fees as of December&nbsp;31, 2009, which amounted to $0.4&nbsp;million, in a combination of common stock and
$0.1&nbsp;million of cash. These fees were paid on October&nbsp;15, 2010 immediately prior to the Merger.
</DIV>





<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In June&nbsp;2008, CSI put in place a debt facility with Cycad Group, LLC (a significant
shareholder of our Company) that would allow a one-time draw down of up to $3.3&nbsp;million. To avoid
any conflict of interest, Mr.&nbsp;K. Leonard Judson, officer of Cycad Group, LLC (and former member of
CSI&#146;s Board of Directors), recused himself from all Board of Directors discussions and voting
pertaining to the debt facility. Mr.&nbsp;Judson resigned from CSI&#146;s Board of Directors in January&nbsp;2009.
The debt facility was repaid in full on October&nbsp;1, 2009.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;27, 2010, CDTI engaged David F. Merrion, a Director of CDTI at such time, to
act as an expert witness in an administrative proceeding related to a patent application with
respect to diesel engine technology. For these services, which commenced February&nbsp;1, 2010 and were
completed on March&nbsp;16, 2010, CDTI paid Mr.&nbsp;Merrion approximately $20,000, at the rate of $300 per
hour or a daily maximum of $3,000 per day. Mr.&nbsp;Merrion resigned from CDTI&#146;s Board of Directors on
the closing date of the Merger as contemplated by the Merger Agreement.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Innovator Capital Limited, a financial services company based in London, England provided
financial advice to CDTI from time and time. Mr.&nbsp;Mungo Park, one of our Directors (and Chairman of
CDTI&#146;s Board prior to the Merger) is a principal and chairman of Innovator.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On November&nbsp;20, 2009, CDTI entered into an engagement letter with Innovator to provide
financing and merger and acquisition services. The engagement letter had an initial three month
term during which Innovator would (i)&nbsp;act for CDTI in arranging a private placement financing of
$3.0&nbsp;million to $4.0&nbsp;million from the sale of CDTI&#146;s common stock and warrants and (ii)&nbsp;assist CDTI
in merger and acquisition activities. Effective February&nbsp;20, 2010 by way of a letter agreement
dated April&nbsp;21, 2010, CDTI extended the term of the engagement letter to June&nbsp;30, 2010 and revised
the minimum and maximum range of private placement financing to $1.0&nbsp;million to $1.5&nbsp;million.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;As provided in the engagement letter, CDTI agreed to pay Innovator (i)&nbsp;a placing commission of
5% of all monies received by CDTI and (ii)&nbsp;financing warrants to acquire shares of CDTI common
stock equal in value to 15% of the total gross proceeds received by CDTI in the financing, such
financing warrants to be exercisable at a price equal to a 10% premium to the price per share of
common stock in the financing. Issuance of the financing warrants was contingent on CDTI&#146;s
stockholders authorizing additional common stock. For its merger and acquisition services, CDTI
agreed to pay Innovator monthly retainer fees of $10,000 and success fees as a percentage of
transaction value of 5% on the first $10.0&nbsp;million, 4% on the next $3.0&nbsp;million, 3% on the next
$2.0&nbsp;million, and 2% on amounts above $15.0&nbsp;million in connection with possible merger and
acquisition transactions. The success fees would be payable in cash or shares or a combination of
cash or shares as determined by CDTI&#146;s Board.
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->43<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On May&nbsp;13, 2010, CDTI entered into a letter agreement with Innovator to clarify CDTI&#146;s fee
arrangements in the context of CDTI&#146;s Regulation&nbsp;S private placement and the Merger. On August&nbsp;23,
2010, CDTI entered into an additional letter agreement with Innovator to (i)&nbsp;extend the term of
Innovator&#146;s engagement until the close of business on September&nbsp;30, 2010 and (ii)&nbsp;further clarify
CDTI&#146;s fee arrangements with Innovator in the context of the Merger. Pursuant to the August&nbsp;23,
2010 letter agreement, CDTI agreed to pay Innovator for services rendered in connection with the
Merger as, if and when completed: (i) $500,000 in cash less monthly retainer fees paid to Innovator
and (ii)&nbsp;32,414 shares of common stock (on a post-split basis). Accordingly, in connection with
the closing of the Merger, CDTI paid Innovator a fee of approximately $761,000 comprised of
$500,000 in cash (inclusive of monthly retainers) and 32,414 shares of common stock. In addition,
CDTI paid Innovator a fee of $50,000 in cash and 15% of the gross proceeds of CDTI&#146;s Regulation&nbsp;S
private placement through the issuance of 14,863 warrants to purchase common stock. These
warrants have an exercise price of $10.09 and expire on the earlier of (i)&nbsp;October&nbsp;15, 2013 (the
third anniversary of the effective time of the Merger) and (ii)&nbsp;the date that is 30&nbsp;days after we
give notice 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.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Derek Gray, a member of our Board of Directors, subscribed for units as part of CDTI&#146;s
Regulation&nbsp;S private placement, which CDTI completed on October&nbsp;15, 2010 immediately prior to the
Merger. Accordingly, on October&nbsp;15, 2010, CDTI sold Mr.&nbsp;Gray units consisting of 8,823 shares of
our common stock and warrants to purchase 13,333 shares of our common stock for approximately $13,333 in cash. The warrants issued to
Mr.&nbsp;Gray in CDTI&#146;s Regulation&nbsp;S private placement have an exercise price of $7.92 on a post-split
basis and expire on the earlier of (i)&nbsp;October&nbsp;15, 2013 (the third anniversary of the effective
time of the Merger) and (ii)&nbsp;the date that is 30&nbsp;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.
</DIV>





<DIV align="left">
<A name="V59112112"></A>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>ITEM 7A. QUANTITATIVE AN QUALITATIVE DISCLOSURES ABOUT MARKET RISK</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.
</DIV>
<DIV align="left">
<A name="V59112113"></A>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>ITEM 8. CONSOLIDATED FINANCIAL STATEMENTS AND SUPPLEMENTAL DATA</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;See &#147;Index to
 Financial Statements,&#148; located on page F-1 of this Annual Report on Form 10-K.
</DIV>
<DIV align="left">
<A name="V59112114"></A>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.
</DIV>
<DIV align="left">
<A name="V59112115"></A>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>ITEM 9A. CONTROLS AND PROCEDURES</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt"><B>Disclosure Controls and Procedures.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In evaluating the disclosure controls and procedures, management recognizes that any controls
and procedures, no matter how well designed and operated, can provide only reasonable assurance of
achieving the desired control
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->44<!-- /Folio -->
</DIV>
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<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">objectives, and management is required to apply its judgment in evaluating the cost-benefit
relationship of possible controls and procedures. Our management evaluated, with the participation
of our Chief Executive Officer and our Chief Financial Officer, the effectiveness of our disclosure
controls and procedures as of the end of the period covered by this annual report on Form 10-K.
Due to the timing of the disclosures regarding the departure of our former Director and Chief
Executive Officer and inquiries from the Securities and Exchange Commission regarding the same, our Chief Executive Officer and our Chief Financial Officer concluded that
our disclosure controls and procedures were not effective as of the
end of the period covered by this report to ensure that information we are required
to disclose in reports that we file or submit under the Securities Exchange Act of 1934 (1)&nbsp;is
recorded, processed, summarized and reported within the time periods specified in Securities and
Exchange Commission rules and forms, and (2)&nbsp;is accumulated and communicated to management,
including our Chief Executive Officer and our Chief Financial Officer, as appropriate to allow
timely decisions regarding required disclosure.
</DIV>




<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In order to remedy our ineffective disclosure controls and procedures, since the Merger, we
implemented new processes and procedures to clarify internal reporting channels and hired financial
reporting and Sarbanes-Oxley specialists to ensure that the information we are required to disclose
in reports that we file or submit under the Securities Exchange Act of 1934 (1)&nbsp;is recorded,
processed, summarized and reported within the time periods specified in Securities and Exchange
Commission rules and forms, and (2)&nbsp;is accumulated and communicated to management, including our
Chief Executive Officer and our Chief Financial Officer, as appropriate to allow timely decisions
regarding required disclosure.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Notwithstanding the conclusion that our disclosure controls and procedures were not effective
as of the end of the period covered by this report, the Chief Executive Officer and the Chief
Financial Officer believe that the consolidated financial statements and other information
contained in this annual report present fairly, in all material respects, our business, financial
condition and results of operations.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Management&#146;s Annual Report on Internal Control over Financial Reporting</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Management is responsible for establishing and maintaining adequate internal control over
financial reporting. Our internal control over financial reporting is a process designed under the
supervision of the Chief Executive Officer and Chief Financial Officer to provide reasonable
assurance regarding the reliability of financial reporting and the preparation of our financial
statements for external reporting purposes in accordance with U.S. generally accepted accounting
principles, or GAAP. A company&#146;s internal control over financial reporting includes those policies
and procedures that:
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="6%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>pertain to the maintenance of records that, in reasonable detail, accurately and
fairly reflect the transactions and dispositions of the assets of the company;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="6%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>provide reasonable assurance that transactions are recorded as necessary to permit
preparation of financial statements in accordance with GAAP, and that receipts and
expenditures of the company are being made only in accordance with authorizations of
management and the directors of the company; and</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="6%" style="background: transparent">&nbsp;</TD>
    <TD width="2%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>provide reasonable assurance regarding prevention or timely detection of
unauthorized acquisition, use or disposition of the company&#146;s assets that could have a
material effect on the financial statements.</TD>
</TR>

</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Because of inherent limitations, internal control over financial reporting may not prevent or
detect misstatements. Also, projections of any evaluation of effectiveness to future periods are
subject to the risk that controls may become inadequate because of changes in conditions, or that
the degree of compliance with the policies or procedures may deteriorate.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Management assessed the effectiveness of our internal control over financial reporting as of
December&nbsp;31, 2010. Management based this assessment on criteria for effective internal control over
financial reporting described in <I>Internal Control &#151; Integrated Framework </I>issued by the Committee
of Sponsoring Organizations of the Treadway Commission. Management&#146;s assessment included an
evaluation of the design of our internal control over financial reporting and testing of the
operational effectiveness of its internal control over financial reporting. Management reviewed the
results of its assessment with the Audit Committee of our Board of Directors.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Based on this assessment, management determined that, as of December&nbsp;31, 2010, we maintained
effective internal control over financial reporting.
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->45<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Changes in Internal Control over Financial Reporting</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;There were no changes in our internal control over financial reporting that have materially
affected, or are reasonably likely to materially affect, our internal control over financial
reporting during our fourth fiscal quarter of 2010.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Auditor&#146;s Attestation</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This annual report does not include an attestation report of our registered public accounting firm
regarding internal control over financial reporting. Management&#146;s report was not subject to attestation by our registered public
accounting firm pursuant to rules of the Securities and Exchange Commission that permit us to provide only management&#146;s report in this annual report.
</DIV>

<DIV align="left">
<A name="V59112116"></A>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>ITEM 9B. OTHER INFORMATION</B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;None.
</DIV>



<P align="center" style="font-size: 10pt"><!-- Folio -->46<!-- /Folio -->
</DIV>


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<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="left">
<A name="V59112117"></A>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>Part III</B>
</DIV>

<DIV align="left">
<A name="V59112118"></A>
</DIV>

<DIV align="left" style="margin-top: 12pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; background: transparent; color: #000000">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD></TD>
</TR>
<TR valign="top">
    <TD nowrap align="left"><B>Item&nbsp;10.</B></TD>
    <TD>&nbsp;</TD>
    <TD><B>DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE</B></TD>
</TR>
</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Information required by this item regarding our directors and executive officers will be set
forth under the captions &#147;Election of Directors,&#148; &#147;Directors and Executive Officers of Clean Diesel
Technologies,&#148; &#147;Section&nbsp;16(a) Beneficial Ownership Reporting Compliance,&#148; &#147;Committees of the
Board,&#148; &#147;Audit Committee&#148; and &#147;Audit Committee Financial Experts&#148; in our proxy statement related to
the 2011 annual meeting of stockholders and is incorporated by reference. Information regarding
our directors is available on our Internet site under &#147;Investor Relations&#148; as follows:
http://www.cdti.com.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We have adopted a Code of Ethics and Business Conduct that applies to all employees, officers
and directors, including the Chief Executive Officer and Chief Financial Officer. A copy of the
code is available free of charge on written or telephone request to the Chief Financial Officer at
4567 Telephone Road, Suite&nbsp;206, Ventura, California 93003 or &#043;1 805 639 9458. The Code may also be
viewed on our website under &#147;Investor Relations&#148; as follows: http://www.cdti.com.
</DIV>
<DIV align="left">
<A name="V59112119"></A>
</DIV>

<DIV align="left" style="margin-top: 12pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; background: transparent; color: #000000">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD></TD>
</TR>
<TR valign="top">
    <TD nowrap align="left"><B>Item&nbsp;11.</B></TD>
    <TD>&nbsp;</TD>
    <TD><B>EXECUTIVE COMPENSATION</B></TD>
</TR>
</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Information required by this item will be set forth under the caption &#147;Executive
Compensation,&#148; &#147;Directors&#146; Compensation,&#148; and &#147;Compensation and Nominating Committee Interlocks and
Insider Participation&#148; in the proxy statement related to the 2011 annual meeting of stockholders
and is incorporated by reference.
</DIV>
<DIV align="left">
<A name="V59112120"></A>
</DIV>

<DIV align="left" style="margin-top: 12pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; background: transparent; color: #000000">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD></TD>
</TR>
<TR valign="top">
    <TD nowrap align="left"><B>Item&nbsp;12.</B></TD>
    <TD>&nbsp;</TD>
    <TD><B>SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER
MATTERS</B></TD>
</TR>
</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Information required by this item will be set forth under the caption &#147;Principal Stockholders
and Stock Ownership of Management&#148; and &#147;Equity Compensation Plan Information&#148; in the proxy
statement related to the 2011 annual meeting of stockholders and is incorporated by reference.
</DIV>
<DIV align="left">
<A name="V59112121"></A>
</DIV>

<DIV align="left" style="margin-top: 12pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; background: transparent; color: #000000">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD></TD>
</TR>
<TR valign="top">
    <TD nowrap align="left"><B>Item&nbsp;13.</B></TD>
    <TD>&nbsp;</TD>
    <TD><B>CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE</B></TD>
</TR>
</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Information required by this item will be set forth under the captions &#147;Compensation and
Nominating Committee Interlocks and Insider Participation,&#148; &#147;Certain Relationships and Related
Transactions&#148; and &#147;Director Independence&#148; in the proxy statement related to the 2011 annual meeting
of stockholders and is incorporated by reference.
</DIV>
<DIV align="left">
<A name="V59112122"></A>
</DIV>

<DIV align="left" style="margin-top: 12pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; background: transparent; color: #000000">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD></TD>
</TR>
<TR valign="top">
    <TD nowrap align="left"><B>Item&nbsp;14.</B></TD>
    <TD>&nbsp;</TD>
    <TD><B>PRINCIPAL ACCOUNTING FEES AND SERVICES</B></TD>
</TR>
</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Information required by this item will be set forth under the caption &#147;Audit Fees&#148; in the
proxy statement related to the 2011 annual meeting of stockholders and is incorporated by
reference.
</DIV>



<P align="center" style="font-size: 10pt"><!-- Folio -->47<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">



<DIV align="left">
<A name="V59112123"></A>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>Part IV</B>
</DIV>

<DIV align="left">
<A name="V59112124"></A>
</DIV>

<DIV align="left" style="margin-top: 12pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; background: transparent; color: #000000">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD></TD>
</TR>
<TR valign="top">
    <TD nowrap align="left"><B>Item&nbsp;15.</B></TD>
    <TD>&nbsp;</TD>
    <TD><B>EXHIBITS AND FINANCIAL STATEMENT SCHEDULES</B></TD>
</TR>
</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(a)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Exhibits and Financial Statement Schedules:</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="6%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(1)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Financial Statements</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="6%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>See &#147;Index to Financial Statements&#148; located on page F-1 of this Annual Report on
Form 10-K.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="6%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(2)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Financial Statement Schedules</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="6%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Not applicable</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="6%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(3)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Exhibits</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="6%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>See the exhibit index included herein.</TD>
</TR>

</TABLE>
</DIV>



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<DIV style="font-family: 'Times New Roman',Times,serif">



<DIV align="left">
<A name="V59112125"></A>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>SIGNATURES</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Pursuant to the requirements of Section&nbsp;13 or 15(d) of the Securities Exchange Act of 1934, Clean
Diesel Technologies, Inc. has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="10%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="30%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="10%">&nbsp;</TD>
</TR>
<TR></TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="5" valign="top" align="left">CLEAN DIESEL TECHNOLOGIES, INC.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top" align="center" nowrap><DIV style="margin-left:0px; text-indent:-0px">March&nbsp;31, 2011
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">By:
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">/s/ Charles F. Call</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD valign="top" style="border-top: 1px solid #000000"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">Date
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Charles F. Call</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Chief Executive Officer and Director</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Pursuant to the requirements of the Securities Exchange Act of 1934, the following persons on
behalf of Clean Diesel Technologies, Inc. and in the capacities and on the date indicated have duly
signed this report below.
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="30%">&nbsp;</TD>
    <TD width="10%">&nbsp;</TD>
    <TD width="60%">&nbsp;</TD>
</TR>
<TR></TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Charles F. Call
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Chief Executive Officer and Director</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Charles F. Call
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;(principal
executive officer)</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Nikhil A. Mehta
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Chief Financial Officer</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Nikhil A. Mehta
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;(principal
financial and accounting officer)</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Bernard H. (&#147;Bud&#148;) Cherry
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Bernard H. (&#147;Bud&#148;) Cherry
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Alexander (&#147;Hap&#148;) Ellis III
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Chairman</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Alexander (&#147;Hap&#148;) Ellis III
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">

<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Charles R. Engles, Ph.D.
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Charles R. Engles, Ph.D.
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Derek R. Gray
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Derek R. Gray
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Mungo Park
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Mungo Park
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Timothy Rogers
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Senior Corporate Vice President, Product Development and Director</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Timothy Rogers
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt">Dated: March&nbsp;31, 2011
</DIV>




<P align="center" style="font-size: 10pt"><!-- Folio -->49<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">




<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>Clean Diesel Technologies, Inc.</B>
</DIV>


<DIV align="Center" style="font-size: 10pt; margin-top: 6pt"><B>INDEX TO FINANCIAL STATEMENTS</B>
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="88%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR></TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><B>Audited Consolidated Financial Statements</B></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#V59112300">Report of Independent Registered Public Accounting Firm</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">F-2</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#V59112301">Consolidated Balance Sheets as of December&nbsp;31, 2010 and 2009</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">F-3</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#V59112302">Consolidated Statements of Operations for the years ended December&nbsp;31, 2010 and 2009</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">F-4</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#V59112303">Consolidated Statements of Stockholders&#146; Equity and Comprehensive Loss for the
years ended December&nbsp;31, 2010 and 2009</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">F-5</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#V59112304">Consolidated Statements of Cash Flows for the years ended December&nbsp;31, 2010 and 2009</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">F-6</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#V59112305">Notes to Consolidated Financial Statements</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">F-8</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>



<P align="center" style="font-size: 10pt"><!-- Folio -->F-1<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">



<DIV align="left">
<A name="V59112300"></A>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>Report of Independent Registered Public Accounting Firm</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">The Board of Directors and Stockholders<BR>
Clean Diesel Technologies, Inc.:

</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We have audited the accompanying consolidated balance sheets of Clean Diesel Technologies,
Inc. and subsidiaries 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.
These consolidated financial statements are the responsibility of the Company&#146;s management. Our
responsibility is to express an opinion on these consolidated financial statements based on our
audits.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We conducted our audits in accordance with the standards of the Public Company Accounting
Oversight Board (United States). Those standards require that we plan and perform the audit to
obtain reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and
disclosures in the financial statements. An audit also includes assessing the accounting principles
used and significant estimates made by management, as well as evaluating the overall financial
statement presentation. We believe that our audits provide a reasonable basis for our opinion.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In our opinion, the consolidated financial statements referred to above present fairly, in all
material respects, the financial position of Clean Diesel Technologies, Inc. and subsidiaries as of
December&nbsp;31, 2010 and 2009, and the results of their operations and their cash flows for the years
then ended in conformity with U.S. generally accepted accounting principles.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The accompanying consolidated financial statements have been prepared assuming that the
Company will continue as a going concern. As discussed in note 1c to the consolidated financial
statements, 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. Management&#146;s
plans in regard to these matters are also described in note 1c. The consolidated financial
statements do not include any adjustments that might result from the outcome of this uncertainty.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 50%">/s/ KPMG LLP

</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Los Angeles, California<BR>
March&nbsp;31, 2011

</DIV>



<P align="center" style="font-size: 10pt"><!-- Folio -->F-2<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">




<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B>
</DIV>

<DIV align="left">
<A name="V59112301"></A>
</DIV>

<!-- xbrl,bs -->
<DIV align="Center" style="font-size: 10pt; margin-top: 6pt"><B>Consolidated Balance Sheets</B>
<!-- xbrl,body -->
</DIV>
<DIV align="center" style="font-size: 10pt"><B>(in thousands, except share amounts)</B></DIV>


<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6" style="border-bottom: 1px solid #000000"><B>December 31,</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><B>ASSETS</B></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Current assets:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Cash and cash equivalents</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">5,007</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">2,336</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Accounts receivable, less allowance for doubtful accounts
of $280 and $313 at December&nbsp;31, 2010 and 2009,
respectively</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">5,456</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">8,066</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Inventories</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">5,364</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">6,184</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Prepaid expenses and other current assets</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,818</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2,010</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Total current assets</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">17,645</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">18,596</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Property and equipment, net</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2,884</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2,897</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Intangible assets, net</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">7,294</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">4,445</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Goodwill</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">4,579</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">4,223</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Other assets</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">246</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">82</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Total assets</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">32,648</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">30,243</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><B>LIABILITIES AND STOCKHOLDERS&#146; EQUITY</B></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Current liabilities:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Line of credit</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">2,431</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">5,147</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Current portion of long-term debt</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3,000</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Settlement obligation</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,575</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Accounts payable</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">4,588</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">4,967</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Warrant liability</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,238</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Accrued expenses and other current liabilities</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">4,466</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">8,752</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Income taxes payable</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">455</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,081</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:30px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Total current liabilities</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">14,753</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">22,949</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Long-term debt, excluding current portion</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,456</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">75</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Deferred tax liability</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,096</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,336</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Total liabilities</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">17,305</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">24,360</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Commitments and contingencies (Note 19)</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Stockholders&#146; equity:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Preferred stock, par value $0.01 per share: authorized 100,000;
no shares issued and outstanding</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Common stock, par value $0.01 per share: authorized
12,000,000; issued and outstanding 3,959,208 and 550,189
shares at December&nbsp;31, 2010 and 2009, respectively</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">40</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">6</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Additional paid-in capital</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">173,262</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">156,110</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Accumulated other comprehensive loss</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(239</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(889</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Accumulated deficit</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(157,720</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(149,344</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Total stockholders&#146; equity</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">15,343</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">5,883</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Total liabilities and stockholders&#146; equity</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">32,648</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">30,243</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>



<DIV align="left" style="font-size: 10pt; margin-top: 12pt">See accompanying notes to the consolidated financial statements.
</DIV>
<!-- /xbrl,bs -->


<P align="center" style="font-size: 10pt"><!-- Folio -->F-3<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">




<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B>
</DIV>

<DIV align="left">
<A name="V59112302"></A>
</DIV>

<!-- xbrl,op -->
<DIV align="Center" style="font-size: 10pt; margin-top: 6pt"><B>Consolidated Statements of Operations</B>
<!-- xbrl,body -->
</DIV>
<DIV align="center" style="font-size: 10pt"><B>(in thousands, except per share amounts)</B></DIV>


<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6"><B>Years Ended</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6" style="border-bottom: 1px solid #000000"><B>December 31,</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Revenues</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">48,117</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">50,514</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Cost of revenues</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">36,082</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">38,547</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Gross margin</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">12,035</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">11,967</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Operating expenses:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Selling, general and administrative</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">11,923</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">12,480</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Research and development</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">4,373</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">7,257</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Severance expense</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">261</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,429</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Recapitalization expense</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3,247</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,258</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Gain on sale of intellectual property</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(3,900</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(2,500</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Total operating expenses</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">15,904</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">19,924</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Loss from operations</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(3,869</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(7,957</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Other income (expense):</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Interest income</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">4</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">18</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Interest expense</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(3,646</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(2,304</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Other expense, net</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(1,821</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(291</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Total other expense</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(5,463</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(2,577</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Loss from continuing operations before income taxes</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(9,332</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(10,534</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Income tax expense (benefit)&nbsp;from continuing operations</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">12</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(1,036</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Net loss from continuing operations</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(9,344</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(9,498</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Discontinued operations:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Income from operations of discontinued Energy Systems division<BR>

(including gain on disposal of $3.7&nbsp;million in 2009)</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,494</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2,554</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Income tax expense from discontinued operations</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">526</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,032</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Net income from discontinued operations</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">968</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,522</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Net loss</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(8,376</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(7,976</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Basic and diluted loss per share:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Net loss from continuing operations per share</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(7.55</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(17.27</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Net income from discontinued operations per share</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">0.78</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2.77</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Net loss per share</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(6.77</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(14.50</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Weighted-average number of common shares outstanding:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Basic and diluted</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,238</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">550</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>



<DIV align="left" style="font-size: 10pt; margin-top: 12pt">See accompanying notes to the consolidated financial statements.
</DIV>
<!-- /xbrl,op -->


<P align="center" style="font-size: 10pt"><!-- Folio -->F-4<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">




<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B>
</DIV>

<DIV align="left">
<A name="V59112303"></A>
</DIV>
<!-- xbrl,se -->
<DIV align="Center" style="font-size: 10pt; margin-top: 6pt"><B>Consolidated Statements of Stockholders&#146; Equity and Comprehensive Loss</B>
</DIV>
<!-- xbrl,body -->
<DIV align="center" style="font-size: 10pt"><B>(in thousands)</B></DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="28%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Accumulated</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Additional</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Other</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Total</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6" style="border-bottom: 1px solid #000000"><B>Common Stock</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Paid-In</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Comprehensive</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Accumulated</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Stockholders&#146;</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>Shares</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>Amount</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>Capital</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>Income /(Loss</B>)</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>Deficit</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>Equity</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Balance at December&nbsp;31, 2008</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">550</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">6</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">157,913</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(2,867</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(143,639</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">11,413</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Cumulative effect of change in accounting for
warrants</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(2,494</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2,271</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(223</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Stock based compensation</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">691</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">691</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Comprehensive loss:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Net loss</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(7,976</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(7,976</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Unrealized gain on foreign currency
translation</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,978</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,978</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Comprehensive loss</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(5,998</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Balance at December&nbsp;31, 2009</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">550</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">6</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">156,110</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(889</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(149,344</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">5,883</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Conversion of secured convertible notes</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,510</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">15</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">5,681</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">5,696</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Beneficial conversion on secured convertible
notes</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,342</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,342</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Shares exchanged in reverse acquisition of CDTI</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,512</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">15</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">7,557</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">7,572</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Issuance of shares and warrants in lieu of fees</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">217</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,257</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,259</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Issuance of liability classified warrants</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(426</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(426</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Issuance of warrants with shareholder note</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">90</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">90</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Stock based compensation</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">275</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">275</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Exercise of stock warrants</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">174</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,376</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,378</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Restricted stock awards forfeited</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(4</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Comprehensive loss:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Net loss</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(8,376</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(8,376</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Unrealized gain on foreign currency
translation</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">650</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">650</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Comprehensive loss</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(7,726</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Balance at December&nbsp;31, 2010</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3,959</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">40</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">173,262</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(239</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(157,720</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">15,343</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt">See accompanying notes to the consolidated financial statements.
</DIV>
<!-- /xbrl,se -->



<P align="center" style="font-size: 10pt"><!-- Folio -->F-5<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">




<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC</B>
</DIV>

<DIV align="left">
<A name="V59112304"></A>
</DIV>

<!-- xbrl,cf -->
<DIV align="Center" style="font-size: 10pt; margin-top: 6pt"><B>Consolidated Statements of Cash Flows</B>
</DIV>
<!-- xbrl,body -->
<DIV align="center" style="font-size: 10pt"><B>(in thousands)</B></DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6"><B>Years Ended</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6" style="border-bottom: 1px solid #000000"><B>December 31,</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Cash flows from operating activities:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Net loss</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(8,376</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(7,976</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Income from discontinued operations</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(968</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(1,522</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Adjustments to reconcile net loss to cash used in operating activities:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Depreciation and amortization</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,356</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,394</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">(Recovery of) provision for doubtful accounts</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(37</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">11</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Compensation expense for options</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">275</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">691</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Change in fair value of financial instruments</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">337</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Beneficial conversion on convertible notes</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,342</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Amortization of debt discount on convertible notes</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,359</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Amortization of deferred financing</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">272</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">686</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Loss on foreign currency transactions</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">530</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">655</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Change in fair value of liability-classified warrants</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">810</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(221</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Loss on unconsolidated affiliate</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">19</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,271</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Gain on sale of interest in unconsolidated affiliate</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(1,165</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Deferred income taxes</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(686</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(1,347</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Loss on disposal of property and equipment</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">60</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">60</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Gain on sale of intellectual property</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(3,900</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(2,500</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Changes in operating assets and liabilities:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Accounts receivable</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3,008</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(3,041</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Inventories</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,841</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3,184</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Prepaid expenses and other assets</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">820</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,036</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Accounts payable</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(788</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,662</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Income taxes payable</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(768</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">377</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Accrued expenses and other current liabilities</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(181</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(820</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Cash used in operating activities of continuing operations</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(3,675</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(7,565</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Cash (used in) provided by operating activities of discontinued
operations</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(589</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">195</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Net cash used in operating activities</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(4,264</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(7,370</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Cash flows from investing activities:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Cash acquired in merger with Clean Diesel Technologies, Inc.</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3,916</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Investment in unconsolidated affiliate</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(413</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Purchases of property and equipment</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(422</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(629</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Proceeds from sale of interest in unconsolidated affiliate</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">108</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Proceeds from sale of intellectual property</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2,000</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">5,400</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Proceeds from sale of discontinued Energy Systems division</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">8,550</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Net cash provided by investing activities</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">5,081</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">13,429</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->F-6<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">
<!-- xbrl -->

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B>
</DIV>


<DIV align="Center" style="font-size: 10pt; margin-top: 6pt"><B>Consolidated Statements of Cash Flows<BR>
(in thousands)</B>
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6"><B>Years Ended</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6" style="border-bottom: 1px solid #000000"><B>December 31,</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Cash flows from financing activities:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Borrowings under line of credit</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,057</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,721</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Repayment of line of credit</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(4,140</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(5,424</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Proceeds from issuance of debt</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">5,500</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">30</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Proceeds from exercise of warrants</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,378</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Repayment of long-term debt</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(1,530</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(6,800</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Payments for debt issuance costs</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(272</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(14</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Net cash provided by (used in) financing activities</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,993</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(10,487</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Effect of exchange rate changes on cash</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(139</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">38</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Net change in cash and cash equivalents</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2,671</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(4,390</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Cash and cash equivalents at beginning of the year</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2,336</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">6,726</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Cash and cash equivalents at end of the year</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">5,007</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">2,336</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Supplemental disclosures:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Cash paid for interest</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">473</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">1,390</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Cash paid for income taxes</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">1,500</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">528</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Noncash investing and financing activities:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Convertible notes converted into common stock</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">5,696</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Fair value of CDTI merger consideration, net of cash acquired</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">3,656</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Liabilities settled in common stock and warrants</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">1,259</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>

<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Settlement
obligation incurred in  settlement of long-term debt</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">1,575</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt">See accompanying notes to the consolidated financial statements.
</DIV>
<!-- /xbrl,cf -->


<P align="center" style="font-size: 10pt"><!-- Folio -->F-7<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>
<!-- xbrl,ns -->

<DIV style="font-family: 'Times New Roman',Times,serif">


<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B>
</DIV>

<DIV align="left">
<A name="V59112305"></A>
</DIV>
<DIV align="center" style="font-size: 10pt"><B>Notes to Consolidated Financial Statements</B></DIV>


<!-- xbrl,n -->
<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>1. Organization</B>
</DIV>

<!-- xbrl,body -->

<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 1%"><B><I>a. Description of Business</I></B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Clean Diesel Technologies, Inc. is a vertically-integrated global manufacturer and
distributor of emissions control systems and products, focused in the heavy duty diesel and light
duty vehicle markets. It&#146;s emissions control systems and products are designed to deliver high
value to its customers while benefiting the global environment through air quality improvement,
sustainability and energy efficiency. It has operations in the United States, Canada, the United
Kingdom, France, Japan and Sweden as well as an Asian joint venture.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 1%"><B><I>b. </I></B><B>Merger</B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On October&nbsp;15, 2010, Clean Diesel Technologies, Inc. (&#147;CDTI&#148;) consummated a business
combination with Catalytic Solutions, Inc. (&#147;CSI&#148;) through the merger of its wholly-owned
subsidiary, CDTI Merger Sub, Inc., with and into CSI pursuant to the terms of the Agreement and
Plan of Merger dated May&nbsp;13, 2010, as amended by letter agreements dated September&nbsp;1, 2010 and
September&nbsp;14, 2010 (the &#147;Merger Agreement&#148;). The Company refers to this transaction as the
&#147;Merger.&#148; Pursuant to the terms of the Merger Agreement, all of the outstanding common stock of
CSI (both Class&nbsp;A and Class&nbsp;B) was cancelled and CDTI issued (or reserved for issuance to the
holder of an &#147;in-the-money&#148; warrant of CSI) an aggregate 2,287,872 shares of CDTI common stock and
warrants to acquire 666,581 shares of CDTI common stock to the former security holders of CSI and
its financial advisor (each after giving effect to a one for six reverse stock split of CDTI&#146;s
common stock that took effect on October&nbsp;15, 2010). In connection with the Merger, CSI became a
wholly-owned subsidiary of CDTI, with the former security holders of CSI and its financial
advisor in the Merger collectively owning shares of the Company&#146;s common stock representing
approximately 60% of the voting power of the Company&#146;s outstanding common stock.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;As further described in Note 3, the Merger was accounted for as a reverse acquisition with
CSI considered the acquirer for accounting purposes and the surviving corporation in the merger.
As a result, the Company&#146;s consolidated financial statements are those of CSI, the accounting
acquirer, with the assets and liabilities and revenue and expenses of CDTI being included
effective from the date of the closing of the Merger.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;References to the &#147;Company&#148; prior to the merger refer to the operations of CSI and its
consolidated subsidiaries and subsequent to the merger to the combined operations of the merged
company and its consolidated subsidiaries. The terms CSI and CDTI refer to such entities&#146; stand
alone businesses prior to the Merger.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 1%"><B><I>c. Liquidity</I></B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The accompanying consolidated financial statements have been prepared assuming the Company
will continue as a going concern. Therefore, the consolidated financial statements contemplate the
realization of assets and liquidation of liabilities in the ordinary course of business. The
Company has suffered recurring losses and negative cash flows from operations since inception,
resulting in an accumulated deficit of $157.7&nbsp;million at December&nbsp;31, 2010. The Company has funded
its operations through equity sales, debt and bank borrowings. In addition, due to CSI&#146;s
non-compliance with certain loan covenants (described below) and per the repayment obligations
under CSI&#146;s loan agreements, a significant portion of the debt of the Company has been classified
as current at December&nbsp;31, 2010. The covenants are almost exclusively based on the performance of
the Engine Control Systems subsidiary. As of March&nbsp;31, 2009, CSI had failed to achieve two of the
covenants under its bank loan agreement with Fifth Third Bank (see Note 10 for a discussion of the
Fifth Third Bank loan agreement). CSI failed to achieve covenants related to the annualized
earnings before interest, tax, depreciation and amortization (EBITDA)&nbsp;and the funded debt to
EBITDA ratio for the Engine Control Systems subsidiary. Fifth Third Bank agreed to temporarily
suspend its rights with respect to the breach of these two covenants under a Forbearance Agreement
(and various extensions thereto)<U></U> that expired on March&nbsp;14, 2011.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On February&nbsp;14, 2011, the Company and certain of its subsidiaries entered into separate Sale
and Security Agreements with Faunua Group International, Inc. (&#147;FGI&#148;) to provide for a $7.5
million secured demand facility backed by the Company&#146;s receivables and inventory. On February&nbsp;16,
2011, approximately $2.1&nbsp;million of proceeds from advances under this facility were used to pay in
full the balance of the obligations under CSI&#146;s credit facility with Fifth Third Bank. See Note 21
&#147;Subsequent Events&#148; for a detailed description of the new financing agreement.
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->F-8<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>
<!-- xbrl -->

<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B></DIV>
<DIV align="center" style="font-size: 10pt"><B>Notes to Consolidated Financial Statements</B></DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;At December&nbsp;31, 2010 the Company had $5.0&nbsp;million in cash. The Company&#146;s access to working
capital is limited and its debt service obligations and projected operating costs for 2011 exceed
its cash balance at December&nbsp;31, 2010. These matters raise substantial doubt about the Company&#146;s
ability to continue as a going concern.
</DIV>

<!-- xbrl,n -->
<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>2. Summary of Significant Accounting Policies</B>
</DIV>

<!-- xbrl,body -->

<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 1%"><B><I>a. Stockholders&#146; Equity</I></B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Stockholders&#146; equity, including all share and per share amounts, has been retroactively
restated to reflect the number of shares of common stock received by former CSI stockholders in the
Merger and includes the effect of the 6-to-1 reverse stock split of CDTI&#146;s common stock that became
effective immediately prior to the closing of the Merger. See Note 3.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 1%"><B><I>b. Principles of Consolidation</I></B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The consolidated financial statements include the financial statements of the Company and its
wholly owned subsidiaries. All significant inter-company balances and transactions have been
eliminated in consolidation.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 1%"><B><I>c. Concentration of Risk</I></B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;For the periods presented below, certain customers accounted for 10% or more of the Company&#146;s
revenues as follows:
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="7"><B>Years Ended</B></TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="7" style="border-bottom: 1px solid #000000"><B>December 31,</B></TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Customer</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">A</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">22</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">24</TD>
    <TD nowrap>%</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">B</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">10</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">22</TD>
    <TD nowrap>%</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The customers above are automotive OEMs and relate to sales within the Catalyst segment.
Customer&nbsp;A has been impacted by the earthquake and resulting tsunami in Japan (see Note&nbsp;21).
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;For the periods presented below, certain customers accounted for 10% or more of the Company&#146;s
accounts receivable balance as follows:
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="7" style="border-bottom: 1px solid #000000"><B>December 31,</B></TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Customer</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">A</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">16</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">18</TD>
    <TD nowrap>%</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">B</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">14</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">15</TD>
    <TD nowrap>%</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">C</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">2</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">14</TD>
    <TD nowrap>%</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Customer A above is an automotive OEM, and customers B and C are diesel distributors.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;For the periods presented below, certain vendors accounted for 10% or more of the Company&#146;s raw
material purchases as follows:
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="7"><B>Years Ended</B></TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="7" style="border-bottom: 1px solid #000000"><B>December 31,</B></TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Vendor</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">A</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">22</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">16</TD>
    <TD nowrap>%</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">B</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">10</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">14</TD>
    <TD nowrap>%</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">C</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">11</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">11</TD>
    <TD nowrap>%</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Vendor A above is a catalyst supplier, vendor B is a precious metals supplier and vendor C is
a substrate supplier.
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->F-9<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B></DIV>
<DIV align="center" style="font-size: 10pt"><B>Notes to Consolidated Financial Statements</B></DIV>





<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 1%"><B><I>d. Use of Estimates</I></B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The preparation of financial statements in conformity with accounting principles generally
accepted in the United States (&#147;U.S. GAAP&#148;) requires management of the Company to make estimates
and assumptions that affect the reported amounts of assets and liabilities and disclosure of
contingent assets and liabilities at the date of the consolidated financial statements and the
reported amounts of revenues and expenses during the reporting period. Areas where significant
judgments are made include but are not limited to the following: business combination accounting,
impairment of long-lived assets, stock-based compensation, the fair value of financial instruments,
allowance for doubtful accounts, inventory valuation, taxes and contingent and accrued liabilities.
Actual results could differ from those estimates. These estimates and assumptions are based on
management&#146;s best estimates and judgment. The Company evaluates its estimates and assumptions on an
ongoing basis using historical experience and other factors, including the current economic
environment, which it believes to be reasonable under the circumstances. Estimates and assumptions
are adjusted when facts and circumstances dictate. As future events and their effects cannot be
determined with precision, actual results could differ from these estimates. Changes in estimates
resulting from continuing changes in the economic environment will be reflected in the financial
statements in future periods.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 1%"><B><I>e. Cash and Cash Equivalents</I></B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Cash and cash equivalents of $5.0&nbsp;million and $2.3&nbsp;million at December&nbsp;31, 2010 and 2009,
respectively, consist of cash balances and money market mutual funds. For purposes of the
consolidated statements of cash flows, the Company considers the money market funds and all highly
liquid debt instruments with original maturities of three months or less to be cash equivalents.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 1%"><B><I>f. Accounts Receivable</I></B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accounts receivable are recorded at the invoiced amount and do not bear interest. The
allowance for doubtful accounts is the Company&#146;s best estimate of the amount of probable credit
losses in the Company&#146;s existing accounts receivable. The Company determines the allowance based
on historical write off experience and past due balances over 60&nbsp;days that are reviewed
individually for collectability. Account balances are charged off against the allowance after all
means of collection have been exhausted and the potential for recovery is considered remote. The
Company does not have any off balance sheet credit exposure related to its customers.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company&#146;s revolving credit facility is collateralized by inventory and receivables. At
December&nbsp;31, 2010 and 2009, the collateralized receivables were $3.9&nbsp;million and $6.0&nbsp;million,
respectively.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In December&nbsp;2005, the Company fully reserved an accounts receivable balance from Delphi in the
amount of $0.4&nbsp;million. The $0.4&nbsp;million represents the amount owed to the Company at the time of
Delphi&#146;s filing for bankruptcy protection in October&nbsp;2005. The entire balance was reserved when the
Company determined it was unlikely that Delphi would improve the priority of the debt beyond those
of general creditors and a probable loss would be incurred by the Company. In 2007, the Company
sold its interest in the receivable at 102.5% of value; however, the Company did not reverse its
reserve as the buyer had the ability to demand a refund if Delphi refused the Company&#146;s claim. In
2009, the Company released the reserve and recorded a $0.4&nbsp;million gain in other income as a result
of Delphi exiting bankruptcy.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 1%"><B><I>g. Inventories</I></B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Inventories are stated at the lower of cost (FIFO method) or market (net realizable value).
Finished goods inventory includes materials, labor and manufacturing overhead. The Company&#146;s
inventory includes precious metals (platinum, palladium and rhodium) for use in the manufacturing
of catalysts. The precious metals are valued at the lower of cost or market, consistent with the
Company&#146;s other inventory. Included in raw material at December&nbsp;31, 2010 and 2009 are precious
metals of $0.4&nbsp;million and $0.2&nbsp;million, respectively.
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->F-10<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B></DIV>
<DIV align="center" style="font-size: 10pt"><B>Notes to Consolidated Financial Statements</B></DIV>



<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 1%"><B><I>h. Property and Equipment</I></B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Property and equipment are stated at cost. Property and equipment under capital leases are
stated at the present value of the minimum lease payments. Depreciation and amortization have been
provided using the straight line method over the following estimated useful lives:
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="85%">&nbsp;</TD>
    <TD width="10%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
</TR>
<TR></TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Machinery and equipment
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"><FONT style="white-space: nowrap">2 &#150; 10&nbsp;years</FONT></TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Furniture and fixtures
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">2 &#150; 5&nbsp;years</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Computer hardware and software
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">2 &#150; 5&nbsp;years</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Vehicles
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">2 &#150; 5&nbsp;years</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;When an asset is sold or otherwise disposed of, the cost and related accumulated depreciation
are removed from the accounts and any resulting gain or loss is recognized. Repairs and maintenance
are charged to expense as incurred and major replacements or betterments are capitalized. The
Company records depreciation expense in the expense category that primarily utilizes the associated
fixed asset. The depreciation of manufacturing and distribution assets is included within cost of
revenues, research and development assets are included in research and development expense and
assets related to general and administrative activities are included in selling, general and
administrative expense. Property and equipment held under capital leases and leasehold improvements
are amortized straight-line over the shorter of the lease term or estimated useful life of the
asset. Total depreciation for continuing operations for the years ended December&nbsp;31, 2010 and 2009
was $0.7&nbsp;million and $0.6&nbsp;million, respectively.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 1%"><B><I>i. Goodwill</I></B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Goodwill is recorded when the purchase price of an acquisition exceeds the estimated fair
value of the net identified tangible and intangible assets acquired and is recorded in the
reporting unit that will benefit from acquired intangible and tangible assets. Goodwill is tested
for impairment on an annual basis or more often as circumstances require. The two-step impairment
test is used to first identify potential goodwill impairment and then measure the amount of
goodwill impairment loss, if any. When it is determined that an impairment has occurred, an
appropriate charge to operations is recorded. Based on the annual impairment test completed in the
fourth quarters of 2010 and 2009, no impairment of goodwill was indicated.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 1%"><B><I>j. Intangible Assets</I></B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Intangible assets are carried at cost, less accumulated amortization. Amortization is computed
on a straight-line or accelerated basis over the estimated useful lives of the respective assets,
ranging from 1 to 20&nbsp;years. Intangible assets consist of trade names, acquired patents and
technology, and customer relationships.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 1%"><B><I>k. Long Lived Assets</I></B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Assets such as property, plant, and equipment and amortizable intangible assets are reviewed
for impairment whenever events or changes in circumstances indicate that the carrying amount of an
asset may not be recoverable. Recoverability of assets to be held and used is measured by a
comparison of the carrying amount of an asset or asset group to estimate undiscounted future cash
flows expected to be generated by the asset or asset group. If the carrying amount of an asset or
asset group exceeds its estimated future cash flows, an impairment charge is recognized for the
amount by which the carrying amount of the asset or asset group exceeds the fair value of the asset
or asset group. Assets to be disposed of would be separately presented in the balance sheet and
reported at the lower of the carrying amount or fair value less costs to sell and are no longer
depreciated. The assets and liabilities of a disposed group classified as held for sale would be
presented separately in the appropriate asset and liability sections of the balance sheet.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 1%"><B><I>l. Warrants and Derivative Liabilities</I></B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company accounts for the issuance of Company derivative equity instruments in accordance
with Accounting Standards Codification (ASC)&nbsp;815-40 &#147;Derivatives and Hedging.&#148; The Company reviews
common stock purchase warrants and other freestanding derivative financial instruments at each
balance sheet date based upon the characteristics and provisions of each particular instrument and
classifies them on the balance sheet as:
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->F-11<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B></DIV>
<DIV align="center" style="font-size: 10pt"><B>Notes to Consolidated Financial Statements</B></DIV>


<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">a)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Equity if they (i)&nbsp;require physical settlement or net-share settlement, or (ii)&nbsp;give
the choice of net-cash settlement or settlement in the Company&#146;s own shares (physical
settlement or net-share settlement), or as</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">b)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Assets or liabilities if they (i)&nbsp;require net-cash settlement (including a requirement
to net cash settle the contract if an event occurs and if that event is outside the
Company&#146;s control), or (ii)&nbsp;give the counterparty a choice of net-cash settlement or
settlement in shares (physical settlement or net-share settlement).</TD>
</TR>

</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company assesses classification of common stock purchase warrants and other freestanding
derivatives at each reporting date to determine whether a change in classification between assets
and liabilities and equity is required.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 1%"><B><I>m. Income Taxes</I></B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Income taxes are accounted for under the asset and liability method. Deferred tax assets and
liabilities are recognized for the future tax consequences attributable to differences between the
financial statement carrying amounts of existing assets and liabilities and their respective tax
basis and operating loss and tax credit carryforwards. Deferred tax assets and liabilities are
measured using enacted tax rates expected to apply to taxable income in the years in which those
temporary differences are expected to be recovered or settled. The effect on deferred tax assets
and liabilities of a change in tax rates is recognized in income in the period that includes the
enactment date. A valuation allowance against deferred tax assets is required if, based on the
weight of available evidence, it is more likely than not that some portion or all of the deferred
tax assets will not be realized. The valuation allowance should be sufficient to reduce the
deferred tax asset to the amount that is more likely than not to be realized. The Company
recognizes the effect of income tax positions only if those positions are more likely than not of
being sustained. Recognized income tax positions are measured at the largest amount that is greater
than 50% likely of being realized. Changes in recognition or measurement are reflected in the
period in which the change in judgment occurs. The Company records interest and penalties related
to unrecognized tax benefits in income tax expense.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 1%"><B><I>n. Revenue Recognition</I></B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company generally recognizes revenue when products are shipped and the customer takes
ownership and assumes risk of loss, collection of the relevant receivable is reasonably assured,
persuasive evidence of an arrangement exists, and the sales price is fixed or determinable. There
are certain customers where risk of loss transfers at destination point and revenue is recognized
when product is delivered to the destination. For these customers, revenue is recognized upon
receipt at the customer&#146;s warehouse. This generally occurs within five days from shipment date.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 1%"><B><I>o. Cost of Revenue</I></B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company includes the direct material costs and factory labor as well as factory overhead
expense in the cost of revenue. Indirect factory expense includes the costs of freight (inbound and
outbound for direct material and finished good), purchasing and receiving, inspection, testing,
warehousing, utilities and deprecation of facilities and equipment utilized in the production and
distribution of products.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 1%"><B><I>p. Selling, General and Administrative Expense</I></B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Selling costs are expensed as they are incurred. These expenses include the salary and
benefits for the sales and marketing staff as well as travel, samples provided at no-cost to
customers and marketing materials. General and administrative expenses include the salary and
benefits for the administrative staff as well as travel, legal, accounting and tax consulting. Also
included is any depreciation related to assets utilized in the general and administrative
functions.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 1%"><B><I>q. Research and Development</I></B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Research and development costs are generally expensed as incurred. These expenses include the
salary and benefits for the research and development staff as well as travel, research materials,
testing and legal expense related
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->F-12<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B></DIV>
<DIV align="center" style="font-size: 10pt"><B>Notes to Consolidated Financial Statements</B></DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">to patenting intellectual property. Also included is any depreciation related to assets utilized in
the development of new products.
</DIV>



<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 1%"><B><I>r. Recapitalization Expense</I></B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Recapitalization expense consists primarily of the expense for legal, accounting and other
advisory professional services related to the Company&#146;s efforts in 2009 and 2010 to explore
strategic opportunities and in 2010 include such costs related to the Merger with Clean Diesel.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 1%"><B><I>s. Stock Compensation</I></B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company recognizes compensation expense ratably over the vesting period based on the
estimated grant date fair value method using the Black-Scholes option-valuation model. The
Company&#146;s Plan allows for the grant of awards with market conditions. These awards are valued using
a Monte Carlo univariate options pricing model.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 1%"><B><I>t. Foreign Currency</I></B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The functional currency of the Heavy Duty Diesel Systems division is the Canadian Dollar,
while that of its subsidiary Engine Control Systems Europe AB in Sweden is the Swedish Krona and
its U.K. branch, Clean Diesel International, is the British pound sterling. The functional
currency of the Company&#146;s Japanese branch office and Asian joint venture is the Japanese Yen.
Assets and liabilities of the foreign locations are translated into U.S. dollars at period-end
exchange rates. Revenue and expense accounts are translated at the average exchange rates for the
period. The resulting adjustments are charged or credited directly to accumulated other
comprehensive loss within Stockholders&#146; Equity.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company has exposure to multiple currencies. The primary exposure is between the U.S.
dollar, the Canadian dollar, the Euro, British pounds sterling and Swedish Krona. All realized and
unrealized transaction adjustments are included in other income (expense). The Company recorded
foreign exchange losses of $0.9&nbsp;million and $1.1&nbsp;million in the years ended December&nbsp;31, 2010 and
2009, respectively, included in other expense on the accompanying Consolidated Statements of
Operations.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 1%"><B><I>u. Net Income (Loss) per Share</I></B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Basic net loss per share is computed using the weighted average number of common shares
outstanding during the period. Diluted net loss per share is computed using the weighted
average number of common shares and dilutive potential common shares. Diluted net loss per
share excludes certain dilutive potential common shares outstanding as their effect is
anti-dilutive on loss from continuing operations. Dilutive potential common shares include
employee stock options and other warrants that are convertible into the Company&#146;s common stock.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Because the Company incurred losses in the years ended December&nbsp;31, 2010 and 2009, the effect
of dilutive securities totaling 1,095,000 and 71,000 equivalent shares, respectively, has been
excluded in the computation of net loss per share and net loss from continuing operations per share
as their impact would be anti-dilutive.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 1%"><B><I>v. Accounting Changes</I></B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On January&nbsp;1, 2009, the Company adopted Financial Accounting Standards Board (FASB)&nbsp;Emerging
Issues Task Force (EITF)&nbsp;07-05, &#147;Determining Whether an Instrument (or Embedded Feature) is
Indexed to an Entity&#146;s Own Stock,&#148; included in Accounting Standards Codification (ASC)&nbsp;topic 815.
EITF 07-05 provides guidance on determining what types of instruments or embedded features in an
instrument held by a reporting entity can be considered indexed to its own stock. Upon adoption of
the EITF, the Company reclassified certain of its warrants from equity to liabilities. See further
discussion in Note 12.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company adopted Statement of Financial Accounting Standards No.&nbsp;157, &#147;Fair Value
Measurements&#148; (SFAS 157) included in ASC Topic 820, for all assets and liabilities effective
January&nbsp;1, 2008 except for nonfinancial assets and liabilities that are recognized or disclosed at
fair value on a non-recurring basis where the adoption was January&nbsp;1, 2009. The adoption of this
standard did not have a material effect on the Company&#146;s
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->F-13<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B></DIV>
<DIV align="center" style="font-size: 10pt"><B>Notes to Consolidated Financial Statements</B></DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">consolidated financial statements. ASC 820 prioritizes the inputs used in measuring fair value
into the following hierarchy:
</DIV>


<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Level 1: Quoted prices (unadjusted)&nbsp;in active markets for identical assets or
liabilities.</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Level 2: Inputs other than quoted prices included within Level 1 that are either
directly or indirectly observable.</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Level 3: Unobservable inputs in which little or no market activity exists, therefore
requiring an entity to develop its own assumptions about the assumptions that market
participants would use in pricing.</TD>
</TR>

</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 1%"><B><I>w. Fair Value of Financial Instruments</I></B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The fair values of the Company&#146;s cash and cash equivalents, trade accounts receivable,
prepaid expenses and other current assets, accounts payable and accrued expenses and other current
liabilities approximate carrying values due to the short maturity of these instruments.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The fair values of the Company&#146;s debt and off-balance sheet commitments are less than their
carrying values as a result of deteriorating credit quality of the Company and, therefore, it is
expected that current market rates would be higher than those currently being experienced by the
Company. It is not practical to estimate the fair value of these instruments as the Company&#146;s debt
is not publicly traded and its current financial position and the recent credit crisis experienced
by financial institutions have caused current financing options to be limited.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;See Note 12 regarding the fair value of the Company&#146;s warrants.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 1%"><B><I>x. Reclassifications</I></B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In prior periods the Company presented &#147;Selling and marketing&#148; expenses and &#147;General and
administrative&#148; expenses separately on its statement of operations. Beginning in the year ended
December&nbsp;31, 2010, the Company now combines these categories of expenses into &#147;Selling, general and
administrative expenses&#148; because there is considerable overlap between management functions
pertaining to sales and marketing and general administrative duties, and as such, estimating
allocation of expenses associated with these overlapping functions is not meaningful. Prior periods
have been reclassified to reflect this change in presentation.
</DIV>

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<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>3. Merger with CDTI</B>
</DIV>

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<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On October&nbsp;15, 2010, CDTI consummated a business combination with CSI through the
merger of its wholly-owned subsidiary, CDTI Merger Sub, Inc. with and into CSI pursuant to the
terms of the Merger Agreement. In the Merger, CSI became a wholly-owned subsidiary of the CDTI. The
Merger provided the Company with several advantages, including better capitalization, improved
access to development capital as well as better positioning to pursue and implement its business
strategy.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the terms of the Merger Agreement, (i)&nbsp;each outstanding share of CSI Class&nbsp;A
Common Stock was converted into and became exchangeable for 0.007888 fully paid and
non-assessable shares of CDTI&#146;s common stock on a post-split basis (with any fractional shares
paid in cash) and warrants to acquire 0.006454 fully paid and non-assessable shares of CDTI
common stock for $7.92 per share on a post-split basis; and; (ii)&nbsp;each outstanding share of CSI Class&nbsp;B Common Stock was converted into and became exchangeable for 0.010039 fully paid
and non-assessable shares of the Company&#146;s common stock on a post-split basis (with any
fractional shares paid in cash); and (iii)&nbsp;CDTI issued 166,666 shares of common stock on a
post-split basis and warrants to purchase an additional 166,666 shares of common stock for
$7.92 per share on a post-split basis to Allen &#038; Company LLC, CSI&#146;s financial advisor in the
Merger. Accordingly, at the effective time of the Merger, CDTI issued or reserved for issuance
(i)&nbsp;611,017 shares of common stock (including 9,859 shares reserved for CSI&#146;s outstanding
in-the-money warrant) and warrants to purchase 499,915 shares of common stock (including 8,067
warrants reserved for issuance for CSI&#146;s outstanding in-the-money warrants) in exchange for all
outstanding CSI Class&nbsp;A Common Stock (ii)&nbsp;1,510,189 shares of common stock in exchange for all
outstanding CSI Class&nbsp;B Common Stock; and (iii)&nbsp;166,666 shares of common stock and warrants to
acquire an additional 166,666 shares of common stock to Allen &#038; Company LLC, in each case
reflecting the elimination of
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->F-14<!-- /Folio -->
</DIV>

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<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>
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<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B></DIV>
<DIV align="center" style="font-size: 10pt"><B>Notes to Consolidated Financial Statements</B></DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">fractional shares that were cashed out in accordance with the Merger Agreement. All 666,581
warrants issued in connection with the Merger (the &#147;Merger Warrants&#148;) expire on the earlier of
(x)&nbsp;October&nbsp;15, 2013 (the third anniversary of the effective time of the Merger) and (y)&nbsp;the
date that is 30&nbsp;days after the Company gives notice to the warrant holder that the market value
of one share of its common stock has exceeded 130% of the exercise price of the warrant for 10
consecutive days.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Following the consummation of the Merger, the former holders of CSI securities and CSI&#146;s
financial advisor collectively hold approximately 60% of the Company&#146;s outstanding common stock.
Because CSI stockholders own a majority of the voting stock of the combined company, CSI assumed
key management positions and CSI held a majority of the board of directors seats upon closing of
the Merger, CSI is deemed to be the acquiring company for accounting purposes and the transaction
has been accounted for as a reverse acquisition in accordance with FASB Accounting Standards
Codification (ASC)&nbsp;Topic 805, Business Combinations. Accordingly, the assets and liabilities of
Clean Diesel were recorded as of the Merger closing date at their estimated fair values.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The following table summarizes the consideration paid for CDTI (in thousands):
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="88%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR></TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Fair Value of CDTI common stock at October&nbsp;15, 2010</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">7,401</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Fair value of stock options and warrants at October&nbsp;15, 2010</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">171</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Total purchase consideration</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">7,572</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Purchase consideration includes 1,511,621 shares of CDTI common stock with a fair value of
$4.90 per share based on the closing price on NASDAQ on October&nbsp;15, 2010. The fair value of
warrants to purchase a total of 166,666 shares of CDTI common stock with a strike price of $7.92
per share issued to accredited investors is $0.93 per warrant. The fair value of warrants
to purchase 14,863 shares of CDTI common stock with a strike price of $10.09 per share issued to
CDTI&#146;s investment advisor is $0.71 per warrant. The warrants include a provision that they expire
30&nbsp;days after a period where the market value of one share of CDTI common stock has exceeded 130%
of the warrant exercise price for 10 consecutive days. See Note 12 and 13 regarding the fair value
of warrants and stock options included in purchase consideration.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The accounting for the business combination is preliminary, principally with respect to
finalization of intangible asset valuations (pending the final valuation report from a
third-party valuation expert assisting the Company in valuing the identified intangible
assets), deferred taxes (pending final assessment of tax positions), inventory (pending final
analysis of recoverability of acquired balances) and contingent liabilities (pending final
legal analysis). Estimated amounts of assets acquired and liabilities assumed, including
provisional amounts for identified intangible assets, contingent liabilities, inventory and
deferred taxes, as of acquisition date are as follows (in thousands):
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="88%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR></TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Cash and cash equivalents</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">3,916</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Accounts receivable</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">156</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Inventory</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">872</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Other assets</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">326</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Property and equipment</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">216</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Intangible assets</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3,306</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Goodwill</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">154</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Total assets acquired</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">8,946</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Liabilities assumed</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(1,374</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Total purchase consideration</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">7,572</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Any changes resulting from the finalization of the purchase price allocation will be reflected
retrospectively in the period in which the business combination occurred.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The excess of the purchase price over the fair value of the tangible and identifiable
intangible assets acquired and liabilities assumed in the acquisition was allocated to goodwill.
The value of goodwill represents the value the Company expects to be created by combining the
various operations of CDTI with the Company&#146;s operations, including providing manufacturing,
regulatory expertise and North American distribution for CDTI products and
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->F-15<!-- /Folio -->
</DIV>

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<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>
<!-- xbrl -->

<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B></DIV>
<DIV align="center" style="font-size: 10pt"><B>Notes to Consolidated Financial Statements</B></DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">technologies and providing a stronger distribution capability for the Company&#146;s products in Europe
and Asia. The CDTI acquisition is included in the Heavy Duty Diesel Systems segment. The goodwill
recorded in the CDTI acquisition is not deductible for tax purposes.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The following table summarizes the intangible assets acquired, all of which are subject to
amortization, (in thousands):
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Weighted</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Average</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Useful Life in</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>Years</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>Fair Value</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Trade name</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">15.5</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">390</TD>
    <TD>&nbsp;</TD>
</TR>

<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Patents</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">15.5</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,446</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Backlog</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1.0</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">180</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Customer relationships</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">4.5</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,290</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Total intangible assets acquired</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">3,306</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company incurred $3.0&nbsp;million in transaction fees related to the Merger which are included
in recapitalization expense for the year ended December&nbsp;31, 2010 in the accompanying Statement of
Operations. These costs were primarily related to legal, accounting and financial advisory fees
associated with the Merger with CDTI.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company has consolidated the results of CDTI with its own financial results for the period
from October&nbsp;15, 2010 through December&nbsp;31, 2010. The impact of the inclusion of CDTI&#146;s operating
results within the Company&#146;s Consolidated Statements of Operations for the year ended December&nbsp;31,
2010 includes $0.4&nbsp;million of revenue and $0.7 of net loss from continuing operations.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><U>Supplemental Pro Forma Clean Diesel Technologies, Inc. for Business Combination</U>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The following pro forma combined financial information shows the Company&#146;s revenue and
earnings for the periods indicated as if the Merger had been completed on January 1st of the
relevant period (in thousands):
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="7"><B>Years Ended</B></TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="7" style="border-bottom: 1px solid #000000"><B>December 31,</B></TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Revenues</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="right">$</TD>
    <TD align="right">49,732</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">$</TD>
    <TD align="right">51,735</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Net loss from continuing operations</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">$</TD>
    <TD align="right">(14,524</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">$</TD>
    <TD align="right">(16,505</TD>
    <TD nowrap>)</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The pro forma Combined Clean Diesel Technologies, Inc. net loss includes the elimination of
historical CDTI depreciation and amortization and the addition of the amortization of the
intangible assets acquired under the pro forma purchase accounting above. The pro forma financial
information does not reflect revenue opportunities and cost savings which the Company expects to
realize as a result of the acquisition of CDTI or estimates of charges related to the integration
activity. The pro forma results for the year ended December&nbsp;31, 2010 includes $5.4&nbsp;million of
acquisition related costs incurred by the Company and CDTI.</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The above selected unaudited pro forma information is presented for illustrative purposes only
and is not necessarily indicative of results of operations in future periods or results that would
have been achieved had the Company been combined for the specified periods.</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->F-16<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>
<!-- xbrl -->

<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B></DIV>
<DIV align="center" style="font-size: 10pt"><B>Notes to Consolidated Financial Statements</B></DIV>





<!-- xbrl,n -->
<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>4. Inventories</B>
</DIV>

<!-- xbrl,body -->
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Inventories at December&nbsp;31, 2010 and 2009 consisted of the following (in thousands):
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6" style="border-bottom: 1px solid #000000"><B>December 31,</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Finished goods</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">2,442</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">2,221</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Work in progress</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,061</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,255</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Raw materials</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,861</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2,708</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">5,364</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">6,184</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<!-- xbrl,n -->
<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>5. Property and Equipment</B>
</DIV>

<!-- xbrl,body -->
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Property and equipment at December&nbsp;31, 2010 and 2009 consisted of the following (in
thousands):
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6" style="border-bottom: 1px solid #000000"><B>December 31,</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Buildings and land</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">837</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">679</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Furniture and fixtures</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2,428</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2,354</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Computer hardware and software</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,415</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,351</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Machinery and equipment</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">11,990</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">11,544</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Vehicles</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">16</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">59</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">16,686</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">15,987</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Less accumulated depreciation</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(13,802</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(13,090</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">2,884</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">2,897</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<!-- xbrl,n -->
<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>6. Goodwill and Intangible Assets</B>
</DIV>

<!-- xbrl,body -->
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<I>Goodwill</I>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company&#146;s Heavy Duty Diesel Systems reporting unit, which is also a reporting segment,
has all of the Company&#146;s allocated goodwill. The changes in the carrying amount of goodwill
for the years ended December&nbsp;31, 2010 and 2009 are as follows (in thousands):
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="88%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR></TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Balance at December&nbsp;31, 2008</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">6,319</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Sale of Energy Systems division</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(2,600</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Effect of translation adjustment</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">504</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Balance at December&nbsp;31, 2009</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">4,223</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Acquisition of CDTI</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">154</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Effect of translation adjustment</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">202</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Balance at December&nbsp;31, 2010</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">4,579</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company performed the annual goodwill impairment testing as of October&nbsp;31, 2010. The
Company performed Step I of the annual impairment test and it was determined that the fair value of
the Company&#146;s reporting unit (as determined using the expected present value of future cash flows)
was greater than the carrying amount of the respective reporting unit, including goodwill, and Step
II of the annual impairment test was not necessary; therefore, there was no impairment to the
carrying amount of the reporting unit&#146;s goodwill.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Goodwill impairment testing requires the Company to estimate the fair value of its reporting
unit. The Company&#146;s estimate of fair value of its reporting unit involves level 3 inputs. The
estimated fair value of the Heavy Duty Diesel Systems reporting unit was derived primarily from a
discounted cash flow model utilizing significant unobservable inputs including expected cash flows
and discount rates. In addition, the Company considered the
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->F-17<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>
<!-- xbrl -->

<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B></DIV>
<DIV align="center" style="font-size: 10pt"><B>Notes to Consolidated Financial Statements</B></DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">overall fair values of its reporting units as compared to the market capitalization of the Company.
The Company determined that no goodwill impairment existed as of October&nbsp;31, 2010 nor any
subsequent events through December&nbsp;31, 2010 triggered additional impairment testing; however, it
is reasonably possible that future impairment tests may result in a different conclusion for the
goodwill of the Heavy Duty Diesel Systems reporting unit. The estimate of fair value of the
reporting units is sensitive to certain factors including but not limited to the following:
movements in the Company&#146;s share price, changes in discount rates and its cost of capital, growth
of the reporting unit&#146;s revenue, cost structure of the reporting unit, successful completion of
research and development and customer acceptance of new products, expected changes in emissions
regulations and approval of the reporting unit&#146;s product by regulatory agencies.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><I>Intangible Assets</I>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Intangible assets as of December&nbsp;31, 2010 and December&nbsp;31, 2009 are summarized as follows (in
thousands):
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="64%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Useful Life</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6" style="border-bottom: 1px solid #000000"><B>December 31,</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>in Years</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Trade name</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">15 &#150; 20</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">1,165</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">738</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Patents and know-how</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">5 &#150; 16</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">5,416</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3,792</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Backlog</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">1</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">180</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Customer relationships</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">4 &#150; 8</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2,544</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,206</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">9,305</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">5,736</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Less accumulated amortization</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(2,011</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(1,291</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">7,294</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">4,445</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Aggregate amortization for amortizable intangible assets for the year ended December&nbsp;31,
2010 and 2009 was $0.7&nbsp;million and $0.8&nbsp;million, respectively.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Estimated amortization expense for existing intangible assets for each of the next five
years is as follows (in thousands):
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="88%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
</TR>
<TR></TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Years ending December&nbsp;31:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">2011</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="right">$</TD>
    <TD align="right">1,518</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">2012</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,016</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">2013</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">855</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">2014</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">774</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">2015</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">709</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<!-- xbrl,n -->
<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>7. Accrued Expenses and Other Current Liabilities</B>
</DIV>

<!-- xbrl,body -->
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accrued expenses and other current liabilities at December&nbsp;31, 2010 and 2009 consist of
the following (in thousands):
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6" style="border-bottom: 1px solid #000000"><B>December 31,</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Accrued salaries and benefits</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">1,515</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">1,294</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Deferred gain on sale of intellectual property</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,900</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Accrued professional and consulting fees</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">750</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2,375</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Accrued severance</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">258</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">670</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Accrued warranty</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">466</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">371</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Deferred revenue</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">195</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Other</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,477</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,947</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">4,466</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">8,752</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->F-18<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>
<!-- xbrl -->

<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B></DIV>
<DIV align="center" style="font-size: 10pt"><B>Notes to Consolidated Financial Statements</B></DIV>



<!-- xbrl,n -->
<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>8. Severance Charges</B>
</DIV>

<!-- xbrl,body -->
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company has taken actions to reduce its cost base beginning in 2008 and continuing
through 2010. As a result of these actions, the Company has accrued severance costs, which are
included in accrued expenses on the accompanying consolidated balance sheets, as follows (in
thousands):
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6" style="border-bottom: 1px solid #000000"><B>December 31,</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Balance at beginning of year</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">670</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">187</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Accrued severance expense</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">261</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,429</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Paid severance expense</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(673</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(946</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Balance at end of year</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">258</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">670</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
Company expects the remaining accrued severance costs to be paid in
2011.</div>
<!-- xbrl,n -->
<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>9. Accrued Warranty</B>
</DIV>

<!-- xbrl,body -->
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company accrues warranty upon shipment of its products. Accrued warranties are
included in accrued expenses on the accompanying consolidated balance sheets. The accrued
warranty is as follows (in thousands):
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6" style="border-bottom: 1px solid #000000"><B>December 31,</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Balance at beginning of year</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">371</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">178</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Accrued warranty expense</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">241</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">354</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Warranty claims paid</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(164</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(190</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Translation adjustment</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">18</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">29</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Balance at end of year</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">466</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">371</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<!-- xbrl,n -->
<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>10. Debt</B>
</DIV>

<!-- xbrl,body -->
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Long-term debt at December&nbsp;31, 2010 and December&nbsp;31, 2009 consists of the following (in
thousands):
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6" style="border-bottom: 1px solid #000000"><B>December 31,</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Line of credit</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">2,431</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">5,147</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Consideration payable</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3,000</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Loan from shareholder</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,410</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Capital lease obligation</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">46</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">75</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3,887</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">8,222</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Less current portion</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(2,431</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(8,147</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">1,456</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">75</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Annual scheduled principal payments of long-term debt are $2.4&nbsp;million and $1.4&nbsp;million for
the years ended December&nbsp;31, 2011 and 2013, respectively.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><I>Line of Credit</I>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company has a demand revolving credit line through Fifth Third Bank with a maximum
principal amount of Canadian $6.0&nbsp;million and availability based upon eligible accounts receivable
and inventory. At December&nbsp;31, 2010, the outstanding balance in U.S. dollars was $2.4&nbsp;million with
$3.1&nbsp;million available for borrowings by its subsidiary, Engine Control Systems, in Canada. The
loan is collateralized by the assets of the Company. The interest rate on the line of credit is
variable based upon Canadian and U.S. Prime Rates. As of December&nbsp;31, 2010, the weighted average
borrowing rate on the line of credit was 6.10% compared to 4.48% as of December&nbsp;31, 2009. The
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->F-19<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B></DIV>
<DIV align="center" style="font-size: 10pt"><B>Notes to Consolidated Financial Statements</B></DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Company is also subject to covenants on minimum levels of tangible capital funds, fixed charge
coverage, EBITDA, funded debt-to-earnings before income tax and depreciation and amortization. In
the event of default, Fifth Third Bank may demand payment on all amounts outstanding immediately.
The Company is also restricted from paying corporate distributions in excess of $250,000. The loan
agreement also includes a material adverse change clause, exercisable if, in the opinion of Fifth
Third Bank, there is a material adverse change in the financial condition, ownership or operation
of Engine Control Systems or the Company. If the Fifth Third Bank deems that a material adverse
change has occurred, Fifth Third Bank may terminate the Company&#146;s right to borrow under the
agreement and demand payment of all amounts outstanding under the agreement. As of March&nbsp;31, 2009,
the Company had failed to achieve two of the covenants under Fifth Third Bank loan agreement with
Fifth Third Bank. The covenants that the Company failed to achieve are those related to the
annualized EBITDA and the funded debt to EBITDA ratio for the Engine Control Systems subsidiary.
Fifth Third Bank agreed to temporarily suspend its rights with respect to the breach of these two
covenants under a Forbearance Agreement that expired on August&nbsp;31, 2010. A further extension until
November&nbsp;30, 2010 was to be granted if the proposed Merger with CDTI was completed by August&nbsp;1,
2010, and as of August&nbsp;31, 2010, the secured convertible notes issued by the Company in connection
with the capital raise had been converted to common equity and the security granted to the
convertible noteholders had been released; the Company had $3.0&nbsp;million of free cash on its balance
sheet; the Engine Control Systems subsidiary had Canadian $2.0&nbsp;million available under the existing
loan agreement; and no default, forbearance default or event of default (as defined in the credit
and forbearance agreements) was outstanding.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Although the merger was not completed by August&nbsp;1, 2010, or before the August&nbsp;31, 2010,
expiration date for the then current forbearance, Fifth Third Bank extended the forbearance until
October&nbsp;15, 2010, and, upon consummation of the Merger, for a further period of 90&nbsp;days until
January&nbsp;15, 2011, but the credit limit has been reduced to $6.0&nbsp;million from $7.0&nbsp;million, the
interest rate has increased by 0.25% to U.S./Canadian Prime Rate plus 3.00%. On January&nbsp;13, 2011, a
further extension until February&nbsp;14, 2011 was provided and Fifth Third Bank agreed to further
extend the forbearance period to March&nbsp;14, 2011 if a satisfactory commitment letter was delivered
to Fifth Third Bank providing for financing commitments in amounts sufficient to pay all
outstanding obligations under the loan agreement, provided that no default, forbearance default or
event of default is outstanding. CSI subsequently delivered to Fifth Third Bank a non-binding
commitment letter from another financial institution with respect to an alternative financing
facility and the bank advised CSI that it had fulfilled the requirement as a condition to the
extension of the forbearance period to March&nbsp;14, 2011.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On February&nbsp;14, 2011, the Company entered into separate Sale and Security Agreements with FGI
to provide for a $7.5&nbsp;million secured demand facility backed by its receivables and inventory. On
February&nbsp;16, 2011, approximately $2.1&nbsp;million of proceeds from advances under this facility were
used to pay in full the balance of the obligations to Fifth Third Bank. See Note 21 &#147;Subsequent
Events&#148; for a detailed description of the new financing agreement.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><I>Consideration Payable and Settlement Obligation</I>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;At December&nbsp;31, 2009, the Company had $3.0&nbsp;million of consideration due to the seller as part
of the Applied Utility Systems acquisition. The consideration was originally due August&nbsp;28, 2009
and accrued interest at 5.36%. On October&nbsp;20, 2010, the Company entered into a comprehensive
agreement with the seller to end all outstanding litigation and arbitration claims and other
disputes between the parties relating to the agreements entered into in connection with its
purchase of Applied Utility Systems assets in August&nbsp;2006 (the &#147;Settlement Agreement&#148;). As
contemplated by the Settlement Agreement, on October&nbsp;22, 2010, the Company paid $1.5&nbsp;million to the
seller as consideration for the settlement. The Company also agreed to pay up to an additional $2.0
million to the seller in eight equal installments through the period ending September&nbsp;30, 2012. On
January&nbsp;4, 2011, using proceeds of the shareholder loan referred to below and cash on hand, the
Company paid the seller $1.6&nbsp;million as satisfaction in full of its obligation. This $1.6&nbsp;million
is a settlement obligation and has therefore been reclassified out of debt into
current liabilities.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><I>Secured Convertible Notes Payable</I>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On June&nbsp;2, 2010, the Company entered into an agreement with a group of accredited investors
providing for the sale of $4.0&nbsp;million of secured convertible notes (&#147;the Notes&#148;). The Notes, as
amended, bear interest at a rate of 8% per annum and were to mature on August&nbsp;2, 2010. Under the
agreements, $2.0&nbsp;million of the Notes were issued in four equal installments ($0.5&nbsp;million each on
June&nbsp;2, June&nbsp;8, June&nbsp;28 and July&nbsp;12, 2010) with the remaining
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->F-20<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B></DIV>
<DIV align="center" style="font-size: 10pt"><B>Notes to Consolidated Financial Statements</B></DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">$2.0&nbsp;million issued on October&nbsp;15, 2010. The $4.0&nbsp;million of Notes were converted into newly created
&#147;Class&nbsp;B&#148; common stock of CSI immediately prior to the merger such that at the effective time of
the Merger, this group of accredited investors received approximately 66.0066% of the Company&#146;s
outstanding common stock on a fully diluted basis. Each share of CSI&#146;s Class&nbsp;B common stock was
exchanged for 0.010039 shares of CDTI common stock whereas each share of the CSI&#146;s Class&nbsp;A common
stock was exchanged for 0.007888 shares of CDTI common stock and warrants to purchase 0.006454
shares of CDTI common stock.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;If the Merger was not completed by August&nbsp;2, 2010, the Notes required repayment of principal
including any interest and an additional payment premium of two times (2X) the outstanding
principal amount. The Company did not repay the Notes or consummate the Merger prior to the August
2, 2010 maturity date or within the subsequent 10-day grace period. The noteholders agreed to
forbear from exercising their rights or remedies with respect to the default under the terms of the
Notes until October&nbsp;15, 2010, per the Forbearance Letter Agreement, including any interest and
additional payment premium of two times (2x) the outstanding principal amount and the interest rate
increase from 8.0% to 15.0%, and agreed that the payment premium would be extinguished in the event
that the Notes were converted and the Merger occurred by October&nbsp;15, 2010.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Notes contained two embedded financial instruments that required separate accounting at
fair value: the premium redemption feature related to the 2x premium and the contingent equity
forward related to the future funding commitment. The estimate of fair value of such financial
instruments involves unobservable inputs that are considered Level 3 inputs.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;For the $2.0&nbsp;million in Notes issued through December&nbsp;31, 2010, the premium redemption
instrument had an initial value upon issuance of $0.7&nbsp;million and represents the fair value of the
additional penalty premium of two times (2x) the outstanding principal amount plus the default
interest that is due if the Notes are in default since the interest rate will increases from 8.0%
to 15.0%. This instrument is considered a put option, as subsequent to August&nbsp;2, 2010, the
noteholders had the option of demanding payment or providing additional time extensions. The fair
value of the premium redemption instrument was estimated by calculating the present value of $4.0
million plus accrued interest, based on an assumed payment date (eleven months after default date)
using a high yield discount rate of 17%, multiplied by an estimated probability of its exercise.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The contingent equity forward had an initial value upon issuance of $0.7&nbsp;million and
represents the fair value of the additional $2.0&nbsp;million that the investors had committed to fund
immediately prior to the closing of the Merger. It is considered a commitment to purchase equity
since the funding would only occur from the same events that will cause the Notes to automatically
convert to equity. The fair value is estimated based on the intrinsic value of the forward
discounted at a risk free rate multiplied by the estimated probability that the forward will fund.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The initial value of the embedded financial instruments was recorded as a discount to the face
value of the Notes and was amortized to interest expense using the effective interest method
through the original maturity date of the Notes, which was August&nbsp;2, 2010. Since the Notes were
converted to common stock on October&nbsp;15, 2010, the premium redemption instrument expired
unexercised, resulting in gain of $0.7&nbsp;million, representing the difference between the initial
proceeds allocated to the instrument and its ultimate fair value of zero. During the year ended
December&nbsp;31, 2010, the Company recognized a loss of $1.0&nbsp;million related to the contingent equity
forward, which reflects the difference between the intrinsic value on the settlement date of $1.7
million and the initial proceeds allocated to the instrument of $0.7&nbsp;million. The net loss on the
two instruments of $0.3&nbsp;million for the year ended December&nbsp;31, 2010 is recorded in other expense
in the accompanying statement of operations.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Notes included a beneficial conversion feature totaling $1.3&nbsp;million that was contingent
on the approval by the shareholders of certain amendments to the Company&#146;s Articles of
Incorporation. Once the related amendments were approved, the beneficial conversion feature was
recorded as additional non-cash interest expense. Such approvals were obtained on October&nbsp;12, 2010.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><I>Loan from Shareholder</I>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On December&nbsp;30, 2010, the Company executed a Loan Commitment Letter with Kanis S.A. pursuant
to which Kanis S.A. loaned the Company $1.5&nbsp;million. The loan bears interest on the unpaid
principal at a rate of six percent (6%), with interest only payable quarterly on each March&nbsp;31,
June&nbsp;30, September&nbsp;30 and December&nbsp;31, commencing March&nbsp;31, 2011. The loan matures on June&nbsp;30,
2013. In addition to principal and accrued interest, the Company is
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->F-21<!-- /Folio -->
</DIV>

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<!-- xbrl -->

<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B></DIV>
<DIV align="center" style="font-size: 10pt"><B>Notes to Consolidated Financial Statements</B></DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">obligated to pay Kanis S.A. at maturity a &#147;Payment Premium&#148; ranging from $100,000 to $200,000 based
proportionally on the number of days that the loan remains outstanding. There is no prepayment
penalty. The loan is unsecured.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In connection with the loan, the Company issued warrants to acquire 25,000 shares of its
common stock at $10.40 per share. The relative estimated fair value of such warrants represents
a discount from the face amount of the loan and has been recorded as a discount from the loan
amount. The discount is being amortized using the effective interest method over the term of
the loan. For information on valuation of the warrants, see Note 12 below.
</DIV>

<!-- xbrl,n -->
<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>11. Stockholders&#146; Equity</B>
</DIV>

<!-- xbrl,body -->
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;As of December&nbsp;31, 2010, the Company has 12.1&nbsp;million shares authorized, 12&nbsp;million shares of
which are $0.01 par value common stock and 100,000 of which are $0.01 par value preferred stock.
The Company believes that there are a sufficient number of shares authorized to cover its current
needs.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">The following is an analysis of the Company&#146;s common stock share activity:
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="88%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
</TR>
<TR></TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Balance at December&nbsp;31, 2008 and 2009</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">550,189</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Issuance for Directors&#146; Fees</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">50,968</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Issuance on conversion of Secured Convertible Notes</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,510,189</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Merger with CDTI</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,511,621</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Issuance for financial advisor fees</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">166,666</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Stock warrants exercised</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">174,019</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Restricted stock awards forfeited</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">(4,444</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Balance at December&nbsp;31, 2010</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3,959,208</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On October&nbsp;15, 2010, prior to the Merger, the Company issued 50,968 shares of common stock and
warrants to acquire an aggregate 41,705 shares of common stock at $7.92 per share (see Note 12), to
its non-employee directors as payment for outstanding director fees. The fair value of the shares
and warrants totaled $0.3&nbsp;million.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On October&nbsp;15, 2010, in connection with the Merger, the Company issued 166,666 shares of
common stock and warrants to acquire an aggregate 166,666 shares of common stock at $7.92 per share
(see Note 12) to its financial advisor, Allen &#038; Company, LLC, in lieu of fees for services received
prior to the Merger. The fair value of the shares and warrants totaled $1.0&nbsp;million.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In 2010, the Company issued 174,019 shares of common stock related to the exercise of
warrants and received cash proceeds of $1.4&nbsp;million. In December&nbsp;2010, the Company issued an
aggregate 153,333 shares of common stock to two accredited investors upon the exercise of
warrants issued on October&nbsp;15, 2010 by CDTI to such investors in a Regulation&nbsp;S capital raise
and assumed by the Company as part of the Merger, for aggregate gross proceeds of $1.2&nbsp;million
($7.92 per share). In exchange for the exercise, the Company also issued to such accredited
investors replacement warrants to acquire an aggregate 153,333 shares at $7.92 per share (see
Note 12). In November and December&nbsp;2010, the Company issued an aggregate 20,686 shares of
common stock related to the exercise of warrants originally issued to CSI&#146;s Class&nbsp;A
shareholders in the Merger. The Company received cash proceeds of $0.2&nbsp;million related to these
exercises. There were no warrant exercises in 2009.
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->F-22<!-- /Folio -->
</DIV>

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<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>
<!-- xbrl -->

<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B></DIV>
<DIV align="center" style="font-size: 10pt"><B>Notes to Consolidated Financial Statements</B></DIV>


<!-- xbrl,n -->
<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>12. Warrants</B>
</DIV>

<!-- xbrl,body -->
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Warrant activity for the year ended December&nbsp;31, 2010

and warrant information as of December 31, 2010  is summarized as follows:
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="64%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="10" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Weighted</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Average</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Exercise</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Range of</B></TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>Shares</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>Price</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>Exercise Prices</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Outstanding at beginning of year</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">34,740</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">122.53</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">&nbsp;</TD>
    <TD nowrap align="center">$2.80 - $211.73</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Merger with CDTI</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">248,090</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">24.47</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">&nbsp;</TD>
    <TD nowrap align="center">$7.92 - $&nbsp;&nbsp;98.70</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Warrants issued</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">836,847</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">7.92</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">&nbsp;</TD>
    <TD nowrap align="center">$7.92</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Warrants exercised</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(174,019</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">7.92</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">&nbsp;</TD>
    <TD nowrap align="center">$7.92</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Warrants expired / forfeited</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(2,788</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">76.05</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">&nbsp;</TD>
    <TD nowrap align="center">$60.00 - $211.73</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Outstanding at end of year</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">942,870</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">16.36</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">&nbsp;</TD>
    <TD nowrap align="center">$2.80 - $169.47</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Warrants exercisable at year-end</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">917,870</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">16.52</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">&nbsp;</TD>
    <TD nowrap align="center">$2.80 - $169.47</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Aggregate intrinsic value</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">1,329,012</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><I>Warrants Outstanding December&nbsp;31, 2009</I>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company&#146;s exercisable warrants and their associated exercise prices at December&nbsp;31,
2009 were as follows:
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="88%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
</TR>
<TR></TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Warrants exercisable into common stock (issued in USD)</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">295</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Exercise price</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="right">$</TD>
    <TD align="right">211.73</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Warrants exercisable into common stock (issued in GBX)</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">34,445</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Weighted average exercise price</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="right">$</TD>
    <TD align="right">121.76</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company had warrants outstanding to purchase 9,859 shares of common stock with an
exercise price of $2.80 which were issued in June&nbsp;2008 to Cycad Group, LLC (&#147;Cycad Warrant&#148;) as
part of the consideration for a debt facility. The Cycad warrant expires on October&nbsp;1, 2014.
The Company had warrants outstanding to purchase 24,586 shares of common stock with an exercise
price of $169.47 which were issued in December&nbsp;2007 to Capital Works, LLC (&#147;Capital Works
Warrant&#148;) as part of the consideration to acquire Engine Control Systems. The Capital Works
warrant expires on November&nbsp;30, 2012.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company adopted EITF 07-05 on January&nbsp;1, 2009. With the adoption of EITF 07-05, Cycad
Warrant and Capital Works Warrant were determined not to be solely linked to the stock price of
the Company and therefore require classification as liabilities. As a result of the adoption on
January&nbsp;1, 2009, the Company recorded a cumulative effect of change in accounting principle of
$2.3&nbsp;million directly as a reduction of accumulated deficit representing the decline in fair value
between the issuance and adoption date. The fair value of the warrants was calculated using the
Black-Scholes option-valuation model. The model utilized a volatility of 60% and a risk free rate
of 1.4%. The years to maturity are 4.4 and 2.8 for the Cycad Group, LLC and Capital Works, LLC
warrants, respectively, which corresponds to the remaining term of the warrants. For the year
ended December&nbsp;31, 2009, the application of EITF 07-05 resulted in an increase to other income of
$0.2&nbsp;million resulting from a decline in fair value of the warrants during the period.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;SVB Financial Group forfeited its 295 warrants on October&nbsp;15, 2010, immediately prior to
completion of the Merger.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Subsequent to the Merger, it was agreed that the exercise price of the Cycad and Capital
Works warrants would be fixed in U.S. Dollars. As such, the Cycad and Capital Works warrants
were determined to be solely linked to the stock price of the Company and, therefore, qualified
for equity classification under EITF 07-05. As such, the Company reclassified the warrants to
equity.
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->F-23<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>
<!-- xbrl -->

<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B></DIV>
<DIV align="center" style="font-size: 10pt"><B>Notes to Consolidated Financial Statements</B></DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><I>Merger with CDTI</I>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In connection with the Merger, the Company assumed, for financial reporting purposes, 248,090
warrants to purchase the Company&#146;s common stock from CDTI. The assumed warrants include 166,666
warrants with an exercise price of $7.92 issued to accredited investors in connection with CDTI&#146;s
Regulation&nbsp;S private placement on October&nbsp;15, 2010 immediately prior to the Merger, 14,863 warrants
with an exercise price of $10.09 issued to CDTI&#146;s financial advisor, Innovator Capital, on October
15, 2010 immediately prior to the Merger and 66,561 CDTI warrants outstanding prior to the merger
(&#147;Legacy Warrants&#148;). The replacement awards were considered part of the Merger consideration
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Legacy Warrants were originally issued by CDTI between November&nbsp;2000 and December&nbsp;2007
and were fully vested prior to the closing of the Merger. The warrants have exercise prices
ranging from $48.90 to $98.70 and expire at various dates from March&nbsp;22, 2011 through September
25, 2013. As of December&nbsp;31, 2010, none of these warrants have been exercised and 2,493
warrants with an exercise price of $60.00 have expired unexercised. The remaining CDTI Merger
warrants expire on the earlier of the third anniversary of the date of issuance (October&nbsp;15,
2013) and the date that is 30&nbsp;days after the Company gives notice to the warrant holder that
the market value of one share of its common stock has exceeded 130% of the exercise price of
the warrant for 10 consecutive days.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><I>2010 Issuances</I>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In connection with the Merger, on October&nbsp;15, 2010, the Company issued 450,143 warrants to
the holders of CSI Class&nbsp;A common stock, 41,705 warrants to CSI&#146;s directors and 166,666
warrants to CSI&#146;s financial advisor, Allen &#038; Company LLC. All of these warrants have an
exercise price of $7.92 and expire on the earlier of the third anniversary of the date of
issuance (October&nbsp;15, 2013) and the date that is 30&nbsp;days after the Company gives notice to the
warrant holder that the market value of one share of its common stock has exceeded 130% of the
exercise price of the warrant for 10 consecutive days. As discussed in Note 11, the warrants
issued to the directors and to Allen &#038; Company were in lieu of fees for services received. As
of December&nbsp;31, 2010, 20,686 of the warrants issued to the Class&nbsp;A shareholders have been
exercised.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In December&nbsp;2010, 153,333 of replacement warrants issued to the accredited investors were
exercised and, in exchange for the exercise, the Company issued additional warrants to acquire
an aggregate 153,333 shares at $7.92 per share. The warrants expire on the earlier of the third
anniversary of the date of issuance and the date that is 30&nbsp;days after the Company gives notice
to the warrant holder that the market value of one share of its common stock has exceeded 130%
of the exercise price of the warrant for 10 consecutive days.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In December&nbsp;2010, in connection with the shareholder loan (see Note 10), the Company
issued warrants to acquire 25,000 shares of its common stock at $10.40 per share. The warrants
are exercisable on or after June&nbsp;30, 2013 and expire on the earlier of June&nbsp;30, 2016 and the
date that is 30&nbsp;days after the Company gives notice to the warrant holder that the market value
of one share of its 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&nbsp;30, 2013. The relative
estimated fair value of such warrants represents a discount from the face amount of the loan
and has been recorded as a discount from the loan amount. The discount is amortized using the
effective interest method over the term of the loan.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><I>Valuation</I>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company determines the grant-date fair value of warrants using the Black-Scholes Model
unless the awards are subject to market conditions, in which case it uses a Monte Carlo simulation
model. The Monte Carlo simulation model utilizes multiple input variables to estimate the
probability that market conditions will be achieved.
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->F-24<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>
<!-- xbrl -->

<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B></DIV>
<DIV align="center" style="font-size: 10pt"><B>Notes to Consolidated Financial Statements</B></DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">The 2010 issuances and the assumed warrants originally issued on October&nbsp;15, 2010 can be called by
the Company if the market value of one share of its common stock has exceeded 130% of the exercise
price of the warrant for 10 consecutive dates. The Company valued these warrants using a Monte
Carlo simulation model with the following weighted-average assumptions:
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="52%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>October 15</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>December 21</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>December 22</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>December 30</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Expected volatility</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">53.7</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">47.9</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">47.9</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">47.9</TD>
    <TD nowrap>%</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Risk-free interest rate</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">0.79</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">1.27</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">1.27</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">2.39</TD>
    <TD nowrap>%</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Dividend yield</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">0.0</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">0.0</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">0.0</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">0.0</TD>
    <TD nowrap>%</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Expected life in years</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3.0</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3.0</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3.0</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3.0</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Forfeiture rate</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">0.0</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">0.0</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">0.0</TD>
    <TD nowrap>%</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">&nbsp;</TD>
    <TD align="right">0.0</TD>
    <TD nowrap>%</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Number of Warrants</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">840,043</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">25,000</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">128,333</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">25,000</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Weighted Average Fair
Value</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="right">$</TD>
    <TD align="right">0.94</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">$</TD>
    <TD align="right">2.91</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">$</TD>
    <TD align="right">2.84</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">$</TD>
    <TD align="right">3.59</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Due to the significant change in the Company following the Merger, CDTI&#146;s historical price
volatility was not considered representative of expected volatility going forward. Therefore, the
Company utilized an estimate based upon a portfolio of peer companies.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The fair value of the 66,561 Legacy Warrants was estimated using the Black-Scholes Model and
was negligible due to the exercise prices and remaining time to maturity.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><I>Classification</I>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company evaluated the above warrants on issuance to determine proper classification as
equity or as a liability. For the 450,143 warrants issued on October&nbsp;15, 2010 to former CSI
Class&nbsp;A shareholders, the Company is required to physically settle the contract by delivering
registered shares. In addition, while the relevant warrant agreement does not require cash
settlement if the Company fails to maintain registration of the warrant shares, it does not
specifically preclude cash settlement. Accordingly, the Company&#146;s agreement to deliver
registered shares without express terms for settlement in the absence of continuous effective
registration is presumed to create a liability to settle these warrants in cash, requiring
liability classification. The liability is remeasured at the end of each reporting period with
changes in fair value recognized in other income (expense).
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The contracts for the remaining warrants allow for settlement in unregistered shares and
do not contain any other characteristics that would result in liability classification.
Accordingly, these instruments have been classified in stockholders&#146; equity in the accompanying
consolidated balance sheet as of December&nbsp;31, 2010. The warrants that are accounted for as
equity are only valued on the issuance date and not subsequently revalued.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;These warrants classified as liabilities are considered Level 3 in the fair value
hierarchy because they are valued based on unobservable inputs. The Company had a liability of
$1.2&nbsp;million as of December&nbsp;31, 2010 related to the warrants issued to former CSI Class&nbsp;A
stockholders. Any gains or losses resulting from the changes in fair value of the warrants
classified as a liability from period to period are included as an increase or decrease of
other income (expense).
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The following is a reconciliation of the warrant liability measured at fair value using
Level 3 inputs for the year ended December&nbsp;31, 2010 (in thousands):
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="88%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR></TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Balance at beginning of year</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">2</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Issuance of common stock warrants</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">426</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Remeasurement of common stock warrants</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">810</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Balance at end of year</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">1,238</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company evaluated the balance sheet classification of all warrants at December&nbsp;31,
2010 noting no changes.
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->F-25<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>

<!-- xbrl -->

<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B></DIV>
<DIV align="center" style="font-size: 10pt"><B>Notes to Consolidated Financial Statements</B></DIV>


<!-- xbrl,n -->
<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>13. Share Based Payment</B>
</DIV>

<!-- xbrl,body -->
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Prior to the Merger, the Company had two stock option plans (the 1997 Plan and the 2006 Plan
for the benefit of employees, officers, directors and consultants of the Company. The 1997 Plan
expired on December&nbsp;31, 2006 and as of December&nbsp;31, 2009, there were 18,008 options outstanding.
There were no options granted under the plans during the years ended December&nbsp;31, 2010 or 2009.
Following the completion of the merger, the Company canceled its 1997 option plan and requested all
employees to consent to the cancellation of their options under the 2006 plan. All employees with
options in the 2006 plan provided their consent to the Company. The cancellation of the options
resulted in acceleration of all remaining compensation expense yet to be earned on the cancelled
options. The remaining compensation expense of $0.1&nbsp;million was recognized in the three months
ending December&nbsp;31, 2010.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Following the merger, the Company assumed the CDTI stockholder-approved equity award plan,
(the &#147;Plan&#148;). Under the Plan, awards may be granted to participants in the form of incentive stock
options, non-qualified stock options, stock appreciation rights, restricted stock, performance
awards, bonuses or other forms of share-based awards or cash, or combinations of these as
determined by the board of directors. Awards are granted at fair market value on the date of grant
and typically expire 10&nbsp;years after date of grant. Participants in the Plan may include the
Company&#146;s directors, officers, employees, consultants and advisors (except consultants or advisors
in capital-raising transactions) as the board of directors may determine. The maximum number of
awards allowed under the Plan is 17.5% of the Company&#146;s outstanding common stock less the then
outstanding awards, subject to sufficient authorized shares. In general, the policy of the board of
directors is to grant stock options that vest in equal amounts on the date of grant and the first
and second anniversaries of the date of grant, except that awards to non-executive members of the
board of directors typically vest immediately.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company estimates the fair value of stock options using a Black-Scholes valuation model.
Key input assumptions used to estimate the fair value of stock options include the expected term,
expected volatility of the Company&#146;s stock, the risk free interest rate and dividends, if any. The
expected term of the options is based upon the historical term until exercise or expiration of all
granted options. Due to the significant change in the Company following the Merger, CDTI&#146;s
historical price volatility was not considered representative of expected volatility going forward.
Therefore, the Company utilized an estimate based upon a portfolio of peer companies. Therefore,
the Company utilized an estimate based upon a portfolio of peer companies. The risk-free interest
rate is the constant maturity rate published by the U.S. Federal Reserve Board that corresponds to
the expected term of the option. The dividend yield is assumed as 0% because the Company has not
paid dividends and does not expect to pay dividends in the future. ASC 718 requires forfeitures to
be estimated at the time of grant in order to estimate the amount of share-based awards ultimately
expected to vest. The estimate is based on the Company&#146;s historical rates of forfeitures. ASC 718
also requires estimated forfeitures to be revised, if necessary in subsequent periods if actual
forfeitures differ from those estimates.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Stock option activity for the year ended December&nbsp;31, 2010 and
stock option information as of December&nbsp;31, 2010 is summarized as follows:
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="52%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Weighted</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Average</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Weighted</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Remaining</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Average</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Contractual</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Aggregate</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Exercise</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Term</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Intrinsic</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>Options</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>Price</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>(in years)</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>Value</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Outstanding at January&nbsp;1, 2010</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">36,606</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">219.33</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">4.87</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Granted</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">25,000</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">11.64</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">9.88</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Replacement awards</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">126,801</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">61.81</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2.81</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Cancelled</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(36,606</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">219.33</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">4.87</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Outstanding at December&nbsp;31, 2010</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">151,801</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">53.55</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3.98</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Exercisable at December&nbsp;31, 2010</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">135,134</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">58.72</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3.25</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Available for grant at December&nbsp;31, 2010</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">541,060</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The aggregate intrinsic value represents the difference between the exercise price and the
company&#146;s closing stock price on the last trading day of the year.
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->F-26<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>
<!-- xbrl -->

<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B></DIV>
<DIV align="center" style="font-size: 10pt"><B>Notes to Consolidated Financial Statements</B></DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><I>Replacement Awards</I>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;As a result of the reverse acquisition accounting treatment for the Merger, previously issued
CDTI stock options granted to employees and directors that were outstanding at the date of the
Merger were accounted for as an exchange of awards. The fair value of the outstanding vested and
unvested awards was measured on the date of the acquisition, and for unvested awards that require
service subsequent to the date of the Merger, a portion of the awards&#146; fair values have been
allocated to future service and will be recognized over the remaining future requisite service
period. The replacement awards were valued using the Black-Scholes Model and volatility of 53.7%, a
weighted average term of 2.7&nbsp;years and weighted average risk-free rate of 0.66%.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><I>2010 Grants</I>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The per share weighted-average fair value for options granted during the year ended December
31, 2010 was $6.13 and was estimated using the Black-Scholes option pricing model with the
following weighted-average assumptions:
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="88%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Expected volatility</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">59.9</TD>
    <TD nowrap>%</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Risk-free interest rate</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">1.5</TD>
    <TD nowrap>%</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Dividend yield</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">0.0</TD>
    <TD nowrap>%</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Expected life in years</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">5.0</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Forfeiture rate</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">0.0</TD>
    <TD nowrap>%</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;For the years ended December&nbsp;31, 2010 and 2009, share-based compensation for options was $0.3
million and $0.7&nbsp;million, respectively. Compensation costs for stock options that vest over time
are recognized over the vesting period on a straight-line basis. As of December&nbsp;31, 2010, the
Company had $0.1&nbsp;million of unrecognized compensation cost related to granted stock options that
remained to be recognized over vesting periods. These costs are expected to be recognized over a
weighted average period of 0.9&nbsp;years.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;There was no cash received from option exercises under any share-based payment arrangements
for the years ended December&nbsp;31, 2010 or 2009.
</DIV>

<!-- xbrl,n -->
<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>14. Other Expense, Net</B>
</DIV>

<!-- xbrl,body -->
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other expense, net, consists of the following (in thousands):
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6"><B>Years Ended</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6" style="border-bottom: 1px solid #000000"><B>December 31,</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">(Loss) gain on change in fair value of derivative financial instruments</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(1,147</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">207</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Foreign currency exchange losses</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(881</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(1,060</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Gain on release of Delphi reserve</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">432</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">All other, net</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">207</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">130</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Total other expense, net</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(1,821</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(291</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->F-27<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>
<!-- xbrl -->

<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B></DIV>
<DIV align="center" style="font-size: 10pt"><B>Notes to Consolidated Financial Statements</B></DIV>


<!-- xbrl,n -->
<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>15. Income Taxes</B>
</DIV>

<!-- xbrl,body -->
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Loss from continuing operations before income taxes include the following components (in
thousands):
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6"><B>Years Ended</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6" style="border-bottom: 1px solid #000000"><B>December 31,</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">U.S.-based operations</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(10,742</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(11,678</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Non U.S.-based operations</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,410</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,144</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(9,332</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(10,534</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Income tax expense (benefit)&nbsp;attributable to loss from continuing operations is summarized as
follows (in thousands):
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="64%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>Current</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>Deferred</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>Total</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Year ended December&nbsp;31, 2010:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">U.S. Federal</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(176</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(310</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(486</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">State and local</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(12</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(87</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(99</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Foreign</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">886</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(289</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">597</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Total</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">698</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(686</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">12</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Year ended December&nbsp;31, 2009:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">U.S. Federal</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(560</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(258</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(818</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">State and local</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(150</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(70</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(220</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Foreign</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,021</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(1,019</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Total</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">311</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(1,347</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(1,036</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Income taxes attributable to loss from continuing operations differ from the amounts computed
by applying the U.S. federal statutory rate of 34% to loss from continuing operations before income
taxes as shown below (in thousands):
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6"><B>Years Ended</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6" style="border-bottom: 1px solid #000000"><B>December 31,</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Expected tax benefit</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(3,173</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(3,582</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Net tax effects of:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">State taxes, net of federal benefit</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(54</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(643</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Research credits</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(18</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(153</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Permanent difference on convertible notes and warrants</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,432</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Permanent difference on deemed dividend</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">382</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Permanent difference on transaction costs</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">945</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Other</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">110</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(270</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Change in deferred tax asset due to Section&nbsp;382 net
operating loss carryforward limitation</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">63,147</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">25</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Change in deferred tax asset valuation allowance</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(62,759</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3,587</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">12</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(1,036</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->F-28<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>
<!-- xbrl -->

<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B></DIV>
<DIV align="center" style="font-size: 10pt"><B>Notes to Consolidated Financial Statements</B></DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Deferred tax assets and liabilities consist of the following (in thousands):
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6" style="border-bottom: 1px solid #000000"><B>December 31,</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Deferred tax assets:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Research and development credits</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">1,551</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">3,895</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Other credits</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">366</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Operating loss carry forwards</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">6,038</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">34,509</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Warrant expense</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">84</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Inventories</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">377</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">601</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Allowance for doubtful accounts</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">189</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">105</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Depreciation</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">566</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Deferred research and development expenses for income tax</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">331</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">6,882</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Non-cash compensation</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,293</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">681</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Other</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">696</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3,800</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Total gross deferred tax assets</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">10,475</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">51,489</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Valuation allowance</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(9,120</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(48,536</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Net deferred tax assets</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,355</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2,953</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Deferred tax liabilities:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Amortization</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(39</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(2,749</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Other identifiable intangibles</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(2,412</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(1,540</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:60px; text-indent:-15px">Total gross deferred tax liabilities</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(2,451</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(4,289</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Net deferred tax liabilities</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(1,096</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(1,336</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company had approximately $7.0&nbsp;million and $48.1&nbsp;million of federal and state income tax
net operating loss carryforwards at December&nbsp;31, 2010, respectively. Future utilization of the net
operating losses and credit carryforwards is subject to a substantial annual limitation due to
ownership change limitations as required by Sections&nbsp;382 and 383 of the Internal Revenue Code of
1986, as amended (the &#147;Code&#148;), as well as similar state limitations.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
Company performed a study to evaluate the status of net operating loss carryforwards as a result
of the ownership change from the Merger.  The results of the study provided that the merger caused an &#147;ownership
change&#148; of the Company as defined for U.S. federal income tax purposes as of the date of the
merger.  The &#147;ownership change&#148; will significantly limit the use of the Company&#146;s net operating
losses and credits in future tax years. Of the $7.0 million federal loss carryforwards
approximately $5.4 million of the loss will be subject to an annual limitation of $0.4 million
within the next 5 years and $0.2 million for the following 15 years.  The federal net operating loss
carryforwards will expire in fiscal year 2030.  As a result of the &#147;ownership change&#148; the federal
research and development credits have been limited and based on the limitation the Company
does not anticipate being able to use any of these credits that existed as of the date of the Merger
in future tax years.   Of the $48.1 million of state net operating loss carryforwards approximately
$3.3 million of the loss will be subject to an annual limitation of $0.1 for the next 20 years.  The
state net operating loss carryforwards will expire in fiscal year 2030.  The Company has state
research and development credits of $2.4 million.  Since the state credits have an indefinite life,
the Company did not write them off even though it is also limited under Section 383.
 </DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In assessing the potential realization of deferred tax assets, consideration is given to
whether it is more likely than not that some portion or all of the deferred tax assets will be
realized. The ultimate realization of deferred tax assets is dependent upon the Company attaining
future taxable income during the periods in which those temporary differences become deductible. In
addition, the utilization of net operating loss carryforwards may be limited due to restrictions
imposed under applicable federal and state tax laws due to a change in ownership. Based upon the
level
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->F-29<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>
<!-- xbrl -->

<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B></DIV>
<DIV align="center" style="font-size: 10pt"><B>Notes to Consolidated Financial Statements</B></DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">of historical operating losses and future projections, management believes it is more likely than
not that the Company will not realize the deferred tax assets.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The following changes occurred in the amount of Unrecognized Tax Benefits (including related
interest and penalties) during the year (in thousands):
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6" style="border-bottom: 1px solid #000000"><B>December 31,</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Balance, beginning of year</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">361</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">268</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Additions for current year tax positions</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">112</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">127</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Reductions for prior year tax positions</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(34</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Balance, end of year</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">473</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">361</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;As of December&nbsp;31, 2010, the Company had $0.1&nbsp;million accrued for payment of interest and
penalties related to unrecognized tax benefits.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company operates in multiple tax jurisdictions, both within and outside of the United
States. The following tax years remain open to examination by the major domestic taxing
jurisdictions to which it is subject:
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="88%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>Open Tax Years</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">United States &#151; Federal</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2007 &#150; 2010</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">United States &#151; State</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right" nowrap>2006 &#150; 2010</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Canada</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2005 &#150; 2010</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Sweden</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2008 &#150; 2010</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">United Kingdom</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2006 &#150; 2010</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<!-- xbrl,n -->
<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>16. TCC Joint Venture</B>
</DIV>

<!-- xbrl,body -->
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In February&nbsp;2008, the Company entered into an agreement with Tanaka Kikinzoku Kogyo K.K.
(TKK)&nbsp;to form a new joint venture company, TC Catalyst Incorporated (TCC), a Japanese
corporation. The joint venture is part of the Catalyst division. The Company entered the joint
venture in order to improve its presence in Japan and Asia and strengthen its business flow
into the Asian market.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In December&nbsp;2008, the Company agreed to sell and transfer specific heavy duty diesel
catalyst technology and intellectual property to TKK for use in the defined territory for a
total selling price of $7.5&nbsp;million. TKK will provide that intellectual property to TCC on a
royalty-free basis. The Company also sold shares in TCC to TKK reducing its ownership to 30%.
Of this sale, $5.0&nbsp;million was completed and recognized in 2008 with $2.5&nbsp;million recognized in
2009.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In December&nbsp;2009, the Company agreed to sell and transfer specific three-way catalyst and
zero platinum group metal patents to TKK for use in specific geographic regions. The patents
were sold for $3.9&nbsp;million. TKK paid the Company $1.9&nbsp;million in 2009 and $2.0&nbsp;million in the
first quarter of 2010. The Company recognized the gain on sale of the patents of $3.9&nbsp;million
in the three months ended March&nbsp;31, 2010. As part of the transaction, the Company also sold
shares in TCC, which reduced its ownership in the joint venture to 5%. As the Company is
contractually obligated to fund its portion of the losses of the joint venture based on its
ownership percentage, the Company recognized a gain of $1.1&nbsp;million during the year ended
December&nbsp;31, 2009 as a result of the decrease in ownership and the related decrease to its
obligation to fund losses. The gain is included in other income.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company&#146;s investment in TCC is accounted for using the equity method as the Company
still has significant influence over TCC as a result of having a seat on TCC&#146;s board. In
February&nbsp;2010, the Company entered into an agreement to loan 37.5&nbsp;million JPY (approximately
$0.4&nbsp;million) to TCC to fund continuing operations. The loan was funded in four monthly
tranches starting in February&nbsp;2010 and ending in May&nbsp;2010. As of December&nbsp;31, 2010, the Company
had loaned TCC 37.5&nbsp;million JPY. If the loan is not repaid by TCC, it
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->F-30<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>
<!-- xbrl -->

<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B></DIV>
<DIV align="center" style="font-size: 10pt"><B>Notes to Consolidated Financial Statements</B></DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">will offset the Company&#146;s obligation to fund its portion of TCC&#146;s losses. Given TCC&#146;s
historical losses, the loan has been recorded as a reduction of such obligations. At December
31, 2010, the Company&#146;s loan to TCC less its share of accumulated losses in the amount of $0.1
million is included in other current assets. TCC operates with a March&nbsp;31 fiscal year-end.
Financial information for TCC as of and for the year ended December&nbsp;31, 2010 and 2009 is as
follows (in thousands):
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6" style="border-bottom: 1px solid #000000"><B>December 31,</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Assets</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">3,402</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">6,928</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Liabilities</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">8,422</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">10,980</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Deficit</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(5,020</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(4,052</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="7"><B>Years Ended</B></TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="7" style="border-bottom: 1px solid #000000"><B>December 31,</B></TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Net sales</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="right">$</TD>
    <TD align="right">2,669</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">$</TD>
    <TD align="right">745</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Gross margin</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">$</TD>
    <TD align="right">(2,372</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">$</TD>
    <TD align="right">(213</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Net loss</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">$</TD>
    <TD align="right">(388</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="right">$</TD>
    <TD align="right">(4,379</TD>
    <TD nowrap>)</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<!-- xbrl,n -->
<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>17. Sale of Energy Systems Division</B>
</DIV>

<!-- xbrl,body -->
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On October&nbsp;1, 2009, the Company sold all significant assets of Applied Utility Systems,
Inc., which comprised the Company&#146;s Energy Systems division, for up to $10.0&nbsp;million, including
$8.6&nbsp;million in cash and contingent consideration of $1.4&nbsp;million. Of the contingent
consideration, $0.5&nbsp;million was contingent upon Applied Utility Systems being awarded certain
projects and $0.9&nbsp;million is retention against certain project and contract warranties and
other obligations. The Company has not recognized any of the contingent consideration as of
December&nbsp;31, 2010 and will only do so if the contingencies are resolved favorably. The $0.5
million of contingent consideration that was contingent on the award of certain projects was
not earned and will not be paid.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The income, net of tax of the Energy Systems division is presented as discontinued
operations. Income from discontinued operations for the year ended December&nbsp;31, 2010 includes
a gain of $0.5&nbsp;million recognized pursuant to the October&nbsp;20, 2010 settlement agreement as
discussed in Note 10 above and Note 19. There was no revenue included within discontinued
operations for the year ended December&nbsp;31, 2010. Revenue included within discontinued
operations was $14.0&nbsp;million for year ended December&nbsp;31, 2009.
</DIV>

<!-- xbrl,n -->
<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>18. Related-party Transactions</B>
</DIV>

<!-- xbrl,body -->
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;One of the Company&#146;s Directors, Mr.&nbsp;Alexander (&#147;Hap&#148;) Ellis, III, is a partner of RockPort
Capital Partners (&#147;RockPort&#148;), a shareholder in the Company which subscribed for $0.9&nbsp;million
of the Notes discussed in Note 3 and 10.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In June&nbsp;2008, the Company put in place a debt facility with Cycad Group, LLC (a significant
shareholder of the Company) that would allow a one-time draw down of up to $3.3&nbsp;million. To avoid
any conflict of interest, Mr.&nbsp;K. Leonard Judson, officer of Cycad Group, LLC and Non-Executive
Director of the Company, recused himself from all Board of Directors discussions and voting
pertaining to the debt facility. Mr.&nbsp;Judson resigned from the Board of Directors of the Company in
January&nbsp;2009. The debt facility was repaid in full on October&nbsp;1, 2009.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In October&nbsp;2008, the Company&#146;s Board of Directors unanimously adopted a resolution to
waive the Non-Executive Directors&#146; right to receive, and the Company&#146;s obligation to pay, any
director fees with respect to participation in Board and Committee meetings and other matters
with effect from July&nbsp;1, 2008 and continuing thereafter until the Directors elect to adopt
resolutions reinstating such fees. On May&nbsp;1, 2009, the Directors adopted a resolution to
reinstate the accrual of director fees effective January&nbsp;1, 2009, with a payment schedule to be
determined at a later date. As of December&nbsp;31, 2009 an amount of $0.4&nbsp;million was accrued for
Directors fees and was due and payable to the Directors. As part of the $4.0&nbsp;million issuance
of Notes discussed in Note 3 and 10, the Company agreed to pay director fees accrued as of
December&nbsp;31, 2009, which amounted to
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->F-31<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>
<!-- xbrl -->

<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B></DIV>
<DIV align="center" style="font-size: 10pt"><B>Notes to Consolidated Financial Statements</B></DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">$0.4&nbsp;million. These fees were paid on October&nbsp;15, 2010 immediately prior to the merger in a
combination of stock and cash, with the cash portion being $0.1&nbsp;million.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Innovator Capital Limited,
a financial services company based in London, England, provided financial advice to CDTI.  Mr.&nbsp;Mungo Park, one
of the Company&#146;s Directors (and Chairman of CDTI&#146;s Board prior to the Merger) is a principal and chairman
of Innovator.
</div>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
In November 20, 2009, CDTI entered into an engagement letter with Innovator to provide financing and merger and acquisition services.   In connection with the closing of the Merger and Regulation S private placement that preceded the Merger, CDTI paid Innovator a fee of approximately $761,000 comprised of $500,000 in cash and 32,414 shares of common stock.  In addition, CDTI paid Innovator a fee of $50,000 in cash and 15% of the gross proceeds of CDTI&#146;s Regulation S private placement through the issuance of 14,863 warrants to purchase common stock.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Derek Gray, a member of the Company&#146;s Board
of Directors, subscribed for units as part of CDTI&#146;s Regulation&nbsp;S private placement, which CDTI completed on
October&nbsp;15, 2010 immediately prior to the Merger.  Accordingly, on October&nbsp;15, 2010, CDTI sold Mr. Gray units
consisting of 8,823&nbsp;shares of our common stock and warrants to purchase 13,333&nbsp;shares of our common stock for
approximately $13,333 in cash.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>19. Commitments and Contingencies</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<I>Lease Commitments</I>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company leases certain equipment and facilities under operating leases that expire through
December&nbsp;2018. The Company recognizes its minimum lease payments, including escalation clauses, on
a straight line basis over the minimum lease term of the lease. Rent expense during 2010 and 2009
totaled $1.3&nbsp;million and $1.5&nbsp;million, respectively. The gross amount of assets recorded under
capital leases is $0.1&nbsp;million. Future minimum lease payments under non-cancellable operating
leases (with initial or remaining lease terms in excess of one year) and future minimum capital
lease payments as of December&nbsp;31, 2010 are (in thousands):
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Capital</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Operating</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>leases</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>leases</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Years ending December&nbsp;31:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">2011</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">32</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">1,248</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">2012</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">14</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,180</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">2013</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">6</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">839</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">2014</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">641</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">2015</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">388</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Later years, through 2018</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">762</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Total minimum lease payments</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">52</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">5,058</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Less amount representing interest</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(6</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:45px; text-indent:-15px">Present value of net minimum capital lease payments</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">46</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<I>Legal Proceedings</I>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In connection with the Company&#146;s acquisition of the assets of Applied Utility Systems,
Inc., Applied Utility Systems entered into a Consulting Agreement with M.N. Mansour, Inc.
(&#147;Mansour, Inc.&#148;), pursuant to which Mansour, Inc. and Dr.&nbsp;M.N. Mansour (&#147;Dr.&nbsp;Mansour&#148;) agreed
to perform consulting services for Applied Utility Systems. As further discussed in Note 17,
the income, net of tax of Applied Utility Systems is presented as discontinued operations.
During February&nbsp;2008, Applied Utility Systems terminated the Consulting Agreement for cause and
alleged that Mansour, Inc. and Dr.&nbsp;Mansour had breached their obligations under the Consulting
Agreement. The matter was submitted to binding arbitration in Los Angeles, California. On April
13, 2010, the Arbitrator rendered a Final Award (a)&nbsp;finding that the Consulting Agreement was
properly terminated by the Company on February&nbsp;27, 2008, (b)&nbsp;excusing the Company from any
obligation to make any further payments under the Consulting Agreement, (c)&nbsp;obligating Mansour,
Inc. to pay the Company an amount equal to 75% of all amounts paid to Mansour Inc. by the
Company under the Consulting Agreement, and (d)&nbsp;awarding the Company attorney&#146;s fees in the
amount of $450,000, resulting in a total award of approximately $1.2&nbsp;million. A hearing was
held on August&nbsp;2, 2010, during which the court confirmed the arbitrator&#146;s award in its
entirety. The Company reversed its accrued liability of $1.5&nbsp;million and recorded an associated
gain within discontinued operations during the quarter ending September&nbsp;30, 2010, which
represents the period in which the court confirmed the award and the Company was legally
released from its liability. The Company, as part of the settlement on October&nbsp;20, 2010 with
Dr.&nbsp;Mansour with regards to the consideration due, described below, agreed to release its claim
under the settlement on the breach of the Consulting Agreement.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;At December&nbsp;31, 2009, the Company had $3.0&nbsp;million of consideration due to the seller
under the Applied Utility Systems Asset Purchase Agreement dated August&nbsp;28, 2006. The
consideration was due August&nbsp;28, 2009 and accrues interest at 5.36%. In addition, the Asset
Purchase Agreement provides that the Company would pay the seller an earn-out amount based on
the revenues and net profits from the conduct of the acquired business of Applied Utility
Systems. The earn-out potentially was payable over a period of ten years beginning January&nbsp;1,
2009. The Company has not paid any earn-out amount for the fiscal years ended December&nbsp;31, 2010
or 2009.
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->F-32<!-- /Folio -->
</DIV>

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<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>
<!-- xbrl -->

<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B></DIV>
<DIV align="center" style="font-size: 10pt"><B>Notes to Consolidated Financial Statements</B></DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">The assets of the business were sold on October&nbsp;1, 2009. The seller commenced an action in
California Superior Court to compel arbitration regarding the consideration which was due in
August&nbsp;2009. Such action was stayed by the court and the seller was directed to pursue any
collection action through arbitration. The seller commenced arbitration proceedings to collect
the consideration which was due in August&nbsp;2009 and any earn-out amounts payable under the Asset
Purchase Agreement. The earn-out requested under the proceedings was $21.0&nbsp;million, which is
the maximum earnable over the ten-year period of the earn-out defined in the Asset Purchase
Agreement.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On October&nbsp;20, 2010, the Company and the seller reached a settlement, which ends all
outstanding litigation and arbitration claims between the Seller and the Company. On October
22, 2010, the Company made an initial payment to the Seller of $1.5&nbsp;million. The Company
recorded a gain of $0.6&nbsp;million in 2010 which is included in discontinued operations in the
accompanying Statement of Operations. As provided for within the agreement, the Company paid
the seller $1.575&nbsp;million on January&nbsp;4, 2011, closing out all of the Company&#146;s obligations in
this matter.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On September&nbsp;30, 2008, Applied Utility Systems, Inc. (&#147;AUS&#148;), a former subsidiary of the
Company, filed a complaint against Benz Air Engineering, Inc. (&#147;Benz Air&#148;). The complaint was
amended on January&nbsp;16, 2009, and asserts claims against Benz Air for breach of contract, common
counts and slander. AUS seeks $0.2&nbsp;million in damages, plus interest, costs and applicable
penalties. In response to the complaint, Benz Air filed a cross-complaint on November&nbsp;17, 2008,
which named both AUS and the Company as defendants. The cross-complaint asserts claims against
AUS and the Company for breach of oral contract, breach of express warranty, breach of implied
warranty, negligent misrepresentation and intentional misrepresentation and seeks not less than
$0.3&nbsp;million in damages, plus interest, costs and punitive damages. The Company is unable to
estimate any potential payment for claimed and punitive damages as they have not been quantified by Benz
Air. The Company believes it is more likely than not to prevail in
this matter, however as jury trials are not predictable, it is reasonably possible that an unfavorable verdict could be returned.
 The trial began
on September&nbsp;14, 2010 and has been postponed to May&nbsp;2, 2011.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On April&nbsp;30, 2010, CDTI received a complaint from the Hartford, Connecticut office of the U.S.
Department of Labor under Section&nbsp;806 of the Corporate and Criminal Fraud Accountability Act of
2001, Title VIII of the Sarbanes-Oxley Act of 2002, alleging that a former employee had been
subject to discriminatory employment practices. CDTI&#146;s Board of Directors terminated the employee&#146;s
employment on April&nbsp;19, 2010. The complainant in this proceeding does not demand specific relief.
However, the statute provides that a prevailing employee shall be entitled to all relief necessary
to make the employee whole, including compensatory damages, which may be reinstatement, back pay
with interest, front pay, and special damages such as attorney&#146;s and expert witness fees. CDTI
responded on June&nbsp;14, 2010, denying the allegations of the complaint. Based upon current
information, management, after consultation with legal counsel defending the Company&#146;s interests,
believes the ultimate disposition will have no material effect upon its business, results or
financial position.
As no specific quantification of damages has been provided by the Claimant, the Company
cannot provide a reasonable range of possible outcomes.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In addition to the above, the Company is from time to time involved in collection matters
routine to its business.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><I>Sales and use tax audit</I>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company is undergoing a sales and use tax audit by the State of California on Applied
Utility Systems a former subsidiary of the Company for the period of 2007 through 2009. The audit
has identified a project performed by the Company during that time period for which sales tax was
not collected and remitted and for which the State of California asserts that proper documentation
of resale may not have been obtained. The Company contends and believes that it received sufficient
and proper documentation from its customer to support not collecting and remitting sales tax from
that customer and is actively disputing the audit report with the State of California.
Accordingly, no accrual has been recorded for this matter. The range of potential outcomes in this
matter range from zero to $0.6&nbsp;million. Should the Company not prevail in this matter, it has
certain indemnifications from its customer related to sales tax and would pursue reimbursement from
the customer for all assessments from the State.
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->F-33<!-- /Folio -->
</DIV>

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<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>
<!-- xbrl -->

<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B></DIV>
<DIV align="center" style="font-size: 10pt"><B>Notes to Consolidated Financial Statements</B></DIV>


<!-- xbrl,n -->
<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>20. Segment Reporting</B>
</DIV>

<!-- xbrl,body -->
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company has two division segments based on the products it delivers:
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U><B><I>Heavy Duty Diesel Systems division</I></B></U> &#151; The Heavy Duty Diesel Systems division
includes retrofit of legacy diesel fleets with emissions control systems and the emerging
opportunity for new engine emissions controls for on- and off-road vehicles. In 2007, the
Company acquired Engine Control Systems (ECS), an Ontario, Canada-based company focused on a
variety of heavy duty vehicle applications. This environmental business segment specializes in
the design and manufacture of verified exhaust emissions control solutions. The operations of
CDTI are included in the Heavy Duty Diesel Systems division from the October&nbsp;15, 2010 Merger
date. Globally, the Heavy Duty Diesel Systems division offers a range of products for the
verified retrofit and OEM markets through its distributor/dealer network and direct sales. The
ECS and Clean Diesel Technologies-branded products are used to reduce exhaust emissions created
by on-road, off-road and stationary diesel and alternative fuel engines including propane and
natural gas. The retrofit market in the U.S. is driven in particular by state and municipal
environmental regulations and incentive funding for voluntary early compliance. The Heavy Duty
Diesel Systems division derives significant revenues from retrofit with a portfolio of
solutions verified by the California Air Resources Board and the United States Environmental
Protection Agency.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U><B><I>Catalyst division</I></B></U> &#151; The Catalyst division is the original part of the Catalytic
Solutions (CSI)&nbsp;business behind the Company&#146;s proprietary Mixed Phase Catalyst (MPC <SUP style="FONT-size: 85%; vertical-align: text-top">&#174;</SUP> )
technology enabling the Company to produce catalyst formulations for gasoline, diesel and
natural gas induced emissions that offer performance, proven durability and cost effectiveness
for multiple markets and a wide range of applications. A family of unique high-performance
catalysts has been developed &#151; with base-metals or low platinum group metal (PGM)&nbsp;and zero PGM
content &#151; to provide increased catalytic function and value for technology-driven automotive
industry customers. The Catalyst division&#146;s technical and manufacturing competence in the light
duty vehicle market is aimed at meeting auto makers&#146; most stringent requirements, and it has
supplied over ten million parts to light duty vehicle customers since 1996. The Catalyst
division also provides catalyst formulations for the Company&#146;s Heavy Duty Diesel Systems
division.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U><B><I>Corporate</I></B></U> &#151; Corporate includes cost for personnel, insurance, recapitalization
expense and public company expenses such as legal, audit and taxes that are not allocated down
to the operating divisions.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U><B><I>Discontinued operations</I></B></U> &#151; In 2006, the Company purchased Applied Utility Systems,
Inc., a provider of cost-effective, engineered solutions for the clean and efficient
utilization of fossil fuels. Applied Utility Systems, referred to as the Company&#146;s Energy
Systems division, provided emissions control and energy systems solutions for industrial and
utility boilers, process heaters, gas turbines and generation sets used largely by major
utilities, industrial process plants, OEMs, refineries, food processors, product manufacturers
and universities. The Energy Systems division delivered integrated systems built for customers&#146;
specific combustion processes. As discussed in Note 17, this division was sold on October&nbsp;1,
2009.
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->F-34<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>
<!-- xbrl -->

<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B></DIV>
<DIV align="center" style="font-size: 10pt"><B>Notes to Consolidated Financial Statements</B></DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Summarized financial information for the Company&#146;s reportable segments as of and for the
year ended December&nbsp;31, 2010 and 2009 are shown in the following table (in thousands):
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6"><B>Years Ended</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6" style="border-bottom: 1px solid #000000"><B>December 31,</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Net sales</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Heavy Duty Diesel Systems</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">31,161</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">25,916</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Catalyst</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">17,726</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">25,074</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Corporate</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Eliminations (1)</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(770</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(476</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Total</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">48,117</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">50,514</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Income (loss)&nbsp;from operations</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Heavy Duty Diesel Systems</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">1,882</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">1,942</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Catalyst (2)</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(2,515</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(5,730</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Corporate</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(3,199</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(4,169</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Eliminations</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(37</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Total</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(3,869</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(7,957</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Depreciation and amortization</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Heavy Duty Diesel Systems</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">1,105</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">1,143</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Catalyst</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">251</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">251</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Corporate</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Total</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">1,356</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">1,394</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Capital expenditures</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Heavy Duty Diesel Systems</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">402</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">294</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Catalyst</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">20</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">335</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Eliminations</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">&#151;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Total</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">422</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">629</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6" style="border-bottom: 1px solid #000000"><B>December 31,</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Total assets</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Heavy Duty Diesel Systems</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">36,489</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">28,181</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Catalyst</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">33,567</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">29,231</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Discontinued operations</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,247</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">532</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Eliminations</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(38,655</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(27,701</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Total</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">32,648</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">30,243</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>



<DIV align="left">
<DIV style="font-size: 3pt; margin-top: 16pt; width: 18%; border-top: 1px solid #000000">&nbsp;</DIV>
</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="96%"></TD>
</TR>

<TR valign="top">
    <TD nowrap align="left">(1)</TD>
    <TD>&nbsp;</TD>
    <TD>Elimination of Catalyst revenue related to sales to Heavy Duty Diesel Systems.</TD>
</TR>

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

<TR valign="top">
    <TD nowrap align="left">(2)</TD>
    <TD>&nbsp;</TD>
    <TD>Catalyst division income from operations includes a $3.9&nbsp;million gain on sale of
intellectual property to TKK in 2010 and $2.5&nbsp;million in 2009.</TD>
</TR>

</TABLE>



<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Interest expense for Heavy Duty Diesel Systems was $0.4&nbsp;million and $0.3&nbsp;million for 2010
and 2009, respectively, and interest expense for Catalyst was $3.2&nbsp;million and $2.0&nbsp;million for
2010 and 2009, respectively.
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->F-35<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>
<!-- xbrl -->

<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B></DIV>
<DIV align="center" style="font-size: 10pt"><B>Notes to Consolidated Financial Statements</B></DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net sales by geographic region based on location of sales organization for the year ended
December&nbsp;31, 2010 and 2009 are shown in the following table (in thousands):
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="76%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6"><B>Years Ended</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6" style="border-bottom: 1px solid #000000"><B>December 31,</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">United States</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">20,844</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">27,671</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Canada</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">21,173</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">18,247</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Europe</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">6,100</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">4,596</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Total</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">48,117</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">50,514</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net fixed assets and net assets by geographic region as of December&nbsp;31, 2010 and 2009 are
shown in the following table (in thousands):
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="52%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6" style="border-bottom: 1px solid #000000"><B>Net Fixed Assets</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="6" style="border-bottom: 1px solid #000000"><B>Total Assets</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>2009</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">United States</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">1,119</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">1,316</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">13,446</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">10,333</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Canada</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,458</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1,313</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">13,986</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">16,016</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Europe</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">307</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">268</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">5,216</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3,894</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Total</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">2,884</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">2,897</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">32,648</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">30,243</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
        <TD nowrap colspan="2" align="right" style="border-top: 3px double #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<!-- xbrl,n -->
<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>21. Subsequent Events</B>
</DIV>

<!-- xbrl,body -->
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On February&nbsp;14, 2011, the Company entered into Sale and Security Agreements with FGI to
provide for a $7.5&nbsp;million secured demand facility backed by its receivables and inventory. The FGI
facility has an initial two-year term and may be extended at the Company&#146;s option for additional
one-year terms. In addition to the Company, the following subsidiaries entered into Sale and
Security Agreements with FGI: Catalytic Solutions, Inc., Engine Control Systems Limited, Engine
Control Systems Ltd. and Clean Diesel International, LLC (the &#147;Credit Subsidiaries&#148;). The Company
and the Credit Subsidiaries also entered into guarantees to guarantee the performance of the others
of their obligations under the Sale and Security Agreements. The Company also granted FGI a first
lien collateral interest in substantially all of its assets. On February&nbsp;16, 2011, approximately
$2.1&nbsp;million of proceeds from advances under this facility were used to pay in full the balance of
the Company&#146;s obligations under the Second Amended and Restated Loan Agreement dated as of June&nbsp;27,
2008 with Fifth Third Bank.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Under the FGI facility, FGI can elect to purchase eligible accounts receivables from the
Company and the Credit Subsidiaries at up to 80% of the value of such receivables (retaining a 20%
reserve). At FGI&#146;s election, FGI may advance the Company up to 80% of the value of any purchased
accounts receivable, subject to the $7.5&nbsp;million limit. Reserves retained by FGI on any purchased
receivable are expected to be refunded to the Company net of interest and fees on advances once the
receivables are collected from customers. The Company may also borrow up to $1&nbsp;million against
eligible inventory subject to the aggregate $7.5&nbsp;million limit under the FGI facility and certain
other conditions. The interest rate on advances or borrowings under the FGI facility will be the
greater of (i)&nbsp;7.50% per annum and (ii)&nbsp;2.50% per annum above the Wall Street Journal &#147;prime rate.&#148;
Any advances or borrowings under the FGI facility are due on demand. The Company also agreed to pay
FGI collateral management fees of: 0.44% per month on the face amount of eligible receivables as to
which advances have been made and 0.55% per month on borrowings against inventory, if any. At any
time outstanding advances or borrowings under the FGI facility are less than $2.4&nbsp;million, the
Company agreed to pay FGI standby fees of (i)&nbsp;the interest rate on the difference between $2.4
million and the average outstanding amounts and (ii)&nbsp;0.44% per month on 80% of the amount by which
advances or borrowings are less than the agreed $2.4&nbsp;million minimum.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company paid FGI a one time facility fee of $75,000 upon entry into the FGI facility, and
agreed that it will pay a $150,000 termination fee if it terminates within the first 360&nbsp;days
($76,000 if it terminates in second 360&nbsp;days and prior to the expiration of the facility). FGI may
terminate the facility at any time.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On January 4, 2011, using proceeds of the loan from Kanis S.A. and cash on hand, the Company paid
in full its obligation to make subsequent payments under our October 20, 2010 settlement agreement
with respect to the litigation and other disputes in connection with our purchase of Applied
Utility Systems assets in August 2006. For more information relating to the settlement agreement,
see Note 19. </DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Earthquake and resulting tsunami in Japan has caused a disruption to automotive
production. One of the Company&#146;s largest customers has significant operations in Japan and has been
impacted by the disaster there. The Company&#146;s shipments are primarily to U.S.-based production
sites; however, due to parts delays coming out of Japan, our customer is temporarily reducing their
U.S.-based production. The impact of this temporary production disruption is indeterminate at this
time; however, we anticipate that we will begin to see some negative effects in the second quarter
of 2011.
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->F-36<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>
<!-- xbrl -->

<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CLEAN DIESEL TECHNOLOGIES, INC.</B></DIV>
<DIV align="center" style="font-size: 10pt"><B>Notes to Consolidated Financial Statements</B></DIV>


<!-- xbrl,n -->
<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>22. Quarterly Results of Operations (unaudited)</B>
</DIV>

<!-- xbrl,body -->
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A summary of the unaudited quarterly consolidated results of operations follows (in thousands,
except per share amounts).
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="52%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="14" style="border-bottom: 0px solid #000000"><B>Three Months Ended</B></TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left" style="border-bottom: 0px solid #000000"><B>2010</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>December 31</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>September 30</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>June 30</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>March 31</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Revenues</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">11,807</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">10,939</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">12,926</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">12,445</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Gross margin</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">2,737</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">2,523</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">3,169</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">3,606</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Net (loss)&nbsp;income from continuing operations
(1)</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(6,081</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(4,069</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(1,861</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">2,667</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Net (loss)&nbsp;income from discontinued operations</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">397</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">732</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(86</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(75</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Net (loss)income</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(5,684</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(3,337</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(1,947</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">2,592</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Net (loss)&nbsp;income from continuing operations
per common share</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Basic</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(1.85</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(7.40</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(3.38</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">4.85</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Diluted</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(1.85</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(7.40</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(3.38</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">4.84</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Net (loss)&nbsp;income per common share:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Basic</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(1.73</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(6.07</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(3.54</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">4.71</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Diluted</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(1.73</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(6.07</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(3.54</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">4.70</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="52%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="15" style="border-bottom: 0px solid #000000"><B>Three Months Ended</B></TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left" style="border-bottom: 0px solid #000000"><B>2009</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>December 31</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>September 30</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>June 30</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>March 31</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Revenues</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">17,969</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">13,401</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">9,866</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">9,278</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Gross margin</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">5,119</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">3,286</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">1,180</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">2,382</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Net income (loss)&nbsp;from continuing operations
(1)</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">672</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(3,174</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(5,035</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(1,961</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Net income (loss)&nbsp;from discontinued operations</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">2,645</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">36</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">141</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
    <TD align="right">(1,300</TD>
    <TD nowrap>)</TD>
</TR>
<TR style="font-size: 1px">
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap colspan="2" align="right" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Net income (loss)</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">3,317</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(3,138</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(4,894</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(3,261</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Net income (loss)&nbsp;from continuing operations
per common share</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Basic</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">1.22</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(5.77</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(9.34</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(3.38</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Diluted</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">1.22</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(5.77</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(9.34</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(3.38</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Net income (loss)&nbsp;per common share:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Basic</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">6.03</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(5.71</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(9.09</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(5.74</TD>
    <TD nowrap>)</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:30px; text-indent:-15px">Diluted</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left">$</TD>
    <TD align="right">6.00</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(5.71</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(9.09</TD>
    <TD nowrap>)</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">$</TD>
    <TD align="right">(5.74</TD>
    <TD nowrap>)</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>



<DIV align="left">
<DIV style="font-size: 3pt; margin-top: 16pt; width: 18%; border-top: 1px solid #000000">&nbsp;</DIV>
</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="96%"></TD>
</TR>

<TR valign="top">
    <TD nowrap align="left">(1)</TD>
    <TD>&nbsp;</TD>
    <TD>Includes a pre-tax gain of $3.9&nbsp;million and $2.8&nbsp;million from the sale of intellectual
property to TKK in the quarters ended March&nbsp;31, 2010 and March&nbsp;31, 2009, respectively.</TD>
</TR>

</TABLE>


<!-- /xbrl,ns -->




<P align="center" style="font-size: 10pt"><!-- Folio -->F-37<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">



<DIV align="left">
<A name="V59112126"></A>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>EXHIBIT INDEX</B>
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="94%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center"><B>Exhibit</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>No.</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Description</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">2.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Agreement and Plan of Merger, dated as of May&nbsp;13, 2010, among Clean Diesel Technologies, Inc.,
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&nbsp;S-4/A filed on September&nbsp;23, 2010).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">2.2
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Letter Agreement dated September&nbsp;1, 2010 amending the Agreement and Plan of Merger dated as of
May&nbsp;13, 2010 (incorporated by reference to Exhibit&nbsp;2.2 to the joint proxy statement/information
statement and prospectus included in Clean Diesel&#146;s Registration Statement on Form&nbsp;S-4/A filed on
September&nbsp;23, 2010).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">2.3
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Letter Agreement dated September&nbsp;14, 2010 amending the Agreement and Plan of Merger dated as of
May&nbsp;13, 2010 (incorporated by reference to Exhibit&nbsp;2.3 to the joint proxy statement/information
statement and prospectus included in Clean Diesel&#146;s Registration Statement on Form&nbsp;S-4/A filed on
September&nbsp;23, 2010).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">3.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Restated Certificate of Incorporation of Clean Diesel Technologies, Inc. dated as of March&nbsp;21,
2007 (incorporated by reference to Exhibit&nbsp;3(i)(a) to Clean Diesel&#146;s Annual report on Form&nbsp;10-K
for the year ended December&nbsp;31, 2006 and filed on March&nbsp;30, 2007).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">3.2
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Certificate of Amendment of Restated Certificate of Incorporation of Clean Diesel Technologies,
Inc. dated as of June&nbsp;15, 2007 (incorporated by reference to Exhibit&nbsp;3(i)(b) to Clean Diesel&#146;s
Registration Statement on Form&nbsp;S-1 (No.&nbsp;333-144201) dated on June&nbsp;29, 2007).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">3.3
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Certificate of Amendment of Restated Certificate of Incorporation (incorporated by reference to
Exhibit&nbsp;3.3 to Clean Diesel&#146;s Post-Effective Amendment No.1 to Form&nbsp;S-4 on Form&nbsp;S-3 (No.
333-166865) filed on November&nbsp;10, 2010).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">3.4
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">By-Laws of Clean Diesel Technologies, Inc. as amended through November&nbsp;6, 2008 (incorporated by
reference to Exhibit&nbsp;3.1 to Clean Diesel&#146;s Quarterly Report on Form&nbsp;10-Q filed on November&nbsp;10,
2008).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Specimen of Certificate for Clean Diesel Technologies, Inc. Common Stock (incorporated by
reference to Exhibit&nbsp;4.1 to Clean Diesel&#146;s Post-Effective Amendment No.1 to Form&nbsp;S-4 on Form&nbsp;S-3
(No.&nbsp;333-166865) filed on November&nbsp;10, 2010).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Letter Agreement, dated May&nbsp;13, 2010 between Clean Diesel and Innovator Capital, Ltd.
(incorporated by reference to Exhibit&nbsp;10.1 to Clean Diesel&#146;s Current Report on Form&nbsp;8-K filed on
May&nbsp;18, 2010) as amended by the Letter Agreement, dated August&nbsp;23, 2010 between Clean Diesel and
Innovator Capital, Ltd. (incorporated by reference to Exhibit&nbsp;10.1 to Clean Diesel&#146;s Current
Report on Form&nbsp;8-K filed on August&nbsp;25, 2010).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.2*
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Form of Warrant issued to Innovator Capital, Ltd., dated October&nbsp;15, 2010.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.3
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Engagement Letter between Clean Diesel and Innovator Capital Ltd., dated November&nbsp;20, 2009
(incorporated by reference to Exhibit&nbsp;10 to Clean Diesel&#146;s Current Report on Form&nbsp;8-K filed on
November&nbsp;24, 2009) as amended by the Amendment of Engagement Letter between Clean Diesel and
Innovator Capital Ltd dated April&nbsp;21, 2010 (incorporated by reference to Exhibit&nbsp;10(a) to Clean
Diesel&#146;s Quarterly Report on Form&nbsp;10-Q filed on May&nbsp;14, 2010).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.4*
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Form of Clean Diesel Offshore Private Placement Commitment Letter, including Form of Warrant.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.5
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Form of Warrant to purchase Common Stock (incorporated by reference to Exhibit&nbsp;4.2 to Clean
Diesel&#146;s Post-Effective Amendment No.&nbsp;1 to Form&nbsp;S-4 on Form&nbsp;S-3 (No.&nbsp;333-166865) filed on
November&nbsp;10, 2010).</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="94%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center"><B>Exhibit</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>No.</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Description</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.6
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Registration Rights Agreement dated October&nbsp;15, 2010 (incorporated by reference to Exhibit&nbsp;10.1
to Clean Diesel&#146;s Current Report on Form&nbsp;8-K filed on October&nbsp;21, 2010).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.7
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Assignment and Assumption Agreement dated October&nbsp;15, 2010 (incorporated by reference to Exhibit
10.2 to Clean Diesel&#146;s Current Report on Form&nbsp;8-K filed on October&nbsp;21, 2010).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.8
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Settlement Agreement and Releases between Mansour and M.N. Mansour Inc. (collectively &#147;Mansour&#148;)
and Catalytic Solutions, Inc. and Applied Utility Systems, Inc. dated October&nbsp;20, 2010
(incorporated by reference to Exhibit&nbsp;10.1 to Clean Diesel&#146;s Current Report on Form&nbsp;8-K filed on
October&nbsp;25, 2010).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.9
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Loan Commitment Letter, dated December&nbsp;30, 2010, between Kanis S.A. and Clean Diesel
(incorporated by reference to Exhibit&nbsp;10.1 to Clean Diesel&#146;s Current Report on Form&nbsp;8-K filed on
January&nbsp;5, 2011).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.10
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Form of $1,500,000 Promissory Note Dated December&nbsp;30, 2010 (incorporated by reference to Schedule
A to Loan Commitment Letter filed as Exhibit&nbsp;10.1 to Clean Diesel&#146;s current report on Form&nbsp;8-K
filed on January&nbsp;5, 2011).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.11
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Form of Warrant issued to Kanis S.A., dated December&nbsp;30, 2010 (incorporated by reference to
Schedule&nbsp;B to Loan Commitment Letter filed as Exhibit&nbsp;10.1 to Clean Diesel&#146;s current report on
Form&nbsp;8-K filed on January&nbsp;5, 2011).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.12
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Letter Agreement dated January&nbsp;13, 2011 among Fifth Third Bank, Catalytic Solutions, Inc. and
certain other direct or indirect subsidiaries of Clean Diesel (incorporated by reference to
Exhibit&nbsp;10.1 to Clean Diesel&#146;s Current Report on Form&nbsp;8-K filed on January&nbsp;20, 2011).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.13
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Form of Agreement of Sale of Accounts and Security Agreement, dated February&nbsp;14, 2011 between
Faunus Group International, Inc. and Clean Diesel (incorporated by reference to Exhibit&nbsp;10.1 to
Clean Diesel&#146;s Current Report on Form&nbsp;8-K filed on February&nbsp;16, 2011).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.14
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Form of Agreement Guaranty, dated February&nbsp;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&nbsp;10.2 to Clean Diesel&#146;s Current Report on Form&nbsp;8-K filed on
February&nbsp;16, 2011).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.15**
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Employment Agreement, dated October&nbsp;17, 2006, between Charles F. Call and CSI (incorporated by
reference to Exhibit&nbsp;10.3 to Amendment No.&nbsp;2 to Clean Diesel&#146;s Registration Statement on Form
S-4/A (No.&nbsp;333-166865) filed on August&nbsp;30, 2010).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.16**
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Employment Agreement, dated July&nbsp;9, 2008, between Nikhil A. Mehta and CSI (incorporated by
reference to Exhibit&nbsp;10.4 to Amendment No.&nbsp;2 to Clean Diesel&#146;s Registration Statement on Form
S-4/A (No.&nbsp;333-166865) filed on August&nbsp;30, 2010).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.17**
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Employment Agreement, dated October&nbsp;17, 2006, between Stephen J. Golden, Ph.D., and CSI
(incorporated by reference to Exhibit&nbsp;10.5 to Amendment No.&nbsp;2 to Clean Diesel&#146;s Registration
Statement on Form&nbsp;S-4/A (No.&nbsp;333-166865) filed on August&nbsp;30, 2010).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.18**
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Employment Agreement effective January&nbsp;16, 2009 between Dr.&nbsp;Daniel K. Skelton and Clean Diesel
(incorporated by reference to Exhibit&nbsp;10(t) to Clean Diesel&#146;s Annual Report on Form&nbsp;10-K filed on
March&nbsp;25, 2010).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.19**
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Employment Agreement effective March&nbsp;30, 2009 between Michael L. Asmussen and Clean Diesel
(incorporated by reference to Exhibit&nbsp;10 to Clean Diesel&#146;s Quarterly Report on Form&nbsp;10-Q filed on
May&nbsp;11, 2009).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.20**
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Employment Agreement, dated September&nbsp;23, 2003, between Tim Rogers, and Clean Diesel
(incorporated by reference to Exhibit&nbsp;10(x) to Clean Diesel&#146;s Annual Report on Form&nbsp;10-K filed on
March&nbsp;30, 2007) as amended by the letter agreement dated May&nbsp;3, 2004 (incorporated by reference
to Exhibit&nbsp;10(n) to Clean Diesel&#146;s Annual Report on Form&nbsp;10-K filed on March&nbsp;25, 2010).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.21**
</DIV></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&nbsp;23, 2010 (incorporated by reference to Exhibit&nbsp;10(b) to Clean Diesel&#146;s Quarterly Report
on Form&nbsp;10-Q filed on May&nbsp;14, 2010).</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

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<H5 align="left" style="page-break-before:always"><A HREF="#V59112tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="94%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center"><B>Exhibit</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>No.</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Description</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.22**
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consulting Services Agreement effective January&nbsp;27, 2010 between David F. Merrion and Clean
Diesel (incorporated by reference to Exhibit&nbsp;10(u) to Clean Diesel&#146;s Annual Report on Form&nbsp;10-K
filed on March&nbsp;25, 2010).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.23**
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">1994 Incentive Plan as amended through June&nbsp;11, 2002 (incorporated by reference to Exhibit&nbsp;10(d)
to Clean Diesel&#146;s Annual Report on Form&nbsp;10-K filed on March&nbsp;30, 2007).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.24**
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Form of Incentive Stock Option Agreement (incorporated by reference to Exhibit&nbsp;10(h) to Clean
Diesel&#146;s Form&nbsp;10-K filed on March&nbsp;30, 2007).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.25**
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Form of Non-Qualified Stock Option Agreement (incorporated by reference to Exhibit&nbsp;10(h) to Clean
Diesel&#146;s Form&nbsp;10-K filed on March&nbsp;30, 2007).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.26**
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Form of Non-Executive Director Stock Option Agreement (incorporated by reference to Exhibit to
Clean Diesel&#146;s Registration Statement on Form&nbsp;S-8 (No.&nbsp;333-117057) dated July&nbsp;1, 2004).</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">21*
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Subsidiaries of Clean Diesel Technologies, Inc.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">23*
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of KPMG LLP, Independent Registered Public Accountants.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">31.1*
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Certification of Chief Executive Officer pursuant to Section&nbsp;302 of the Sarbanes-Oxley Act of 2002</TD>
</TR>
<TR><TD>&nbsp;</TD></TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">31.2*
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Certification of Chief Financial Officer pursuant to Section&nbsp;302 of the Sarbanes-Oxley Act of 2002</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">32*
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Certification of Chief Executive Officer and Chief Financial Officer pursuant to Section&nbsp;906 of
the Sarbanes-Oxley Act of 2002</TD>
</TR>

<TR valign="bottom">
    <TD valign="top" colspan="3"><DIV style="font-size: 3pt; margin-top: 16pt; width: 18%; border-top: 1px solid #000000">&nbsp;</DIV></TD>
</TR>

<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">*
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Filed or furnished herewith</TD>
</TR>
<TR>
    <TD style="font-size: 3pt">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">**
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Indicates a management contract or compensatory plan or arrangement</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>



<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

</BODY>
</HTML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.2
<SEQUENCE>2
<FILENAME>v59112exv10w2.htm
<DESCRIPTION>EX-10.2
<TEXT>
<HTML>
<HEAD>
<TITLE>exv10w2</TITLE>
</HEAD>
<BODY bgcolor="#FFFFFF">
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<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><B>Exhibit&nbsp;10.2</B>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt">FORM OF WARRANT
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 50%"><B><I>No.</I></B>

</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&nbsp;</B></TD>
    <TD width="1%"><B>&nbsp;</B></TD>
    <TD><B>THIS WARRANT HAS NOT BEEN AND WILL NOT REGISTERED UNDER THE SECURITIES ACT OF 1933, AS
AMENDED, OR APPLICABLE STATE SECURITIES LAWS. THE HOLDER HEREOF, BY PURCHASING THIS
WARRANT, AGREES FOR THE BENEFIT OF THE COMPANY THAT THIS WARRANT MAY NOT BE OFFERED, SOLD,
PLEDGED, OR OTHERWISE TRANSFERRED BY SUCH HOLDER PRIOR TO THE LATER OF THE (X)&nbsp;SIX MONTHS
FOLLOWING THE ISSUANCE HEREOF OR (Y)&nbsp;IF APPLICABLE, THREE MONTHS AFTER IT CEASES TO BE AN
AFFILIATE, OTHER THAN (1)&nbsp;TO THE COMPANY, (2)&nbsp;PURSUANT TO AN EFFECTIVE REGISTRATION
STATEMENT UNDER THE U.S. SECURITIES ACT OF 1933, AS AMENDED (THE &#147;SECURITIES ACT&#148;), AND IN
ACCORDANCE WITH ANY APPLICABLE LAWS OF ANY STATE OF THE UNITED STATES, (3)&nbsp;IN AN OFFSHORE
TRANSACTION COMPLYING WITH REGULATION S UNDER THE SECURITIES ACT, (4)&nbsp;PURSUANT TO AN
EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT PROVIDED BY RULE 144, IF APPLICABLE,
UNDER THE SECURITIES ACT OR (5)&nbsp;IN A TRANSACTION THAT DOES NOT REQUIRE REGISTRATION UNDER
THE SECURITIES ACT BUT IS IN ACCORDANCE WITH APPLICABLE STATE SECURITIES LAWS AND IN
RELATION TO WHICH THE HOLDER HAS FURNISHED TO THE COMPANY AN OPINION TO SUCH EFFECT FROM
COUNSEL OF RECOGNISED STANDING IN FORM AND SUBSTANCE SATISFACTORY TO THE COMPANY PRIOR TO
SUCH OFFER, SALE, PLEDGE OR TRANSFER. THE HOLDER HEREOF, BY PURCHASING THIS WARRANT,
REPRESENTS AND AGREES FOR THE BENEFIT OF THE COMPANY THAT IT IS A NON-U.S. PERSON, AND
ACKNOWLEDGES THAT HEDGING TRANSACTIONS INVOLVING THIS WARRANT MAY NOT BE CONDUCTED UNLESS
CONDUCTED IN COMPLIANCE WITH THE SECURITIES ACT.</B></TD>
</TR>

</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>October&nbsp;15, 2010</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt"><B>14,863 Shares</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt"><B>Warrant for Purchase of Common Stock<BR>
of Clean Diesel Technologies, Inc.<BR>
(a Delaware Corporation)</B>

</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This Certifies that Innovator Capital Limited (the &#147;Holder&#148;) of &#091;<B>Insert Address</B>&#093; for value
received and subject to the provisions hereinafter set forth is entitled to purchase from Clean
Diesel Technologies, Inc., a Delaware corporation (the &#147;Company&#148;), 14,863 shares of Common Stock of
the Company, par value $.01 per share (the &#147;Shares&#148;), at a price of USD$10.09 per share (the
&#147;Exercise Price&#148;) on or before 5:00 p.m. local time at the then executive offices of the Company on
or prior to the Expiration Date (as defined below). This Warrant shall be void unless exercised on
or before the Expiration Date.
</DIV>
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">1. <U>Commitment Letter</U>. This Warrant is issued pursuant to that certain Commitment Letter
between the Holder and the Company (the &#147;Commitment Letter&#148;) relating to the Offering (as defined
therein) and the issuances by the Company to the Holder of the Primary Shares (as defined therein)
and this Warrant on the date hereof.
</DIV>




<P align="center" style="font-size: 10pt"><!-- Folio -->A-1<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">



<DIV align="left" style="font-size: 10pt; margin-top: 6pt">2. <U>Exercise; Expiration Date</U>. This Warrant may be exercised from time to time by the
Holder as to the whole or any lesser number of the Shares upon tender of this Warrant at the then
executive office of the Company with a written notice signed by the Holder to the attention of the
Company Secretary expressing the Holder&#146;s intent to exercise the same together with payment to the
Company of the Exercise Price of the Shares stated in the notice to be purchased. If this Warrant
is exercised in respect of fewer than all of the Shares that may be purchased under this Warrant,
the Company shall execute a new warrant in the form of this Warrant for the remaining Shares
issuable under the original Warrant and deliver such new Warrant to the Holder.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">This Warrant and all rights hereunder will expire if not exercised by 5:00 p.m. prevailing local
time in New York, New York on the date that is the earlier to occur of (i)&nbsp;October&nbsp;15, 2013, and
(ii)&nbsp;that date which is thirty (30)&nbsp;days after the giving of notice by the Company to the Holder
that the Fair Market Value of one Share has exceeded 130% of the Exercise Price for ten (10)
consecutive days (which 10-day period means, if the Shares are then listed or traded on an exchange
or otherwise quoted, 10 consecutive days for which the Closing Bid Price is reported), and that the
Warrant will therefore expire if not exercised prior to the Expiration Date.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&#147;Fair Market Value&#148; means (i)&nbsp;the consolidated closing bid price of one Share as reported on the
NASDAQ Stock Market, LLC or on any other principal national securities exchange on which the Shares
are then listed or admitted for trading or (ii)&nbsp;if the Shares are not then listed or admitted for
trading on any national securities exchange, the last reported sale price or, in case no such sale
takes place on each day during the 10-day period referred to below, the average of the highest
reported bid and the lowest reported asked quotation for the Shares, either case as reported on any
authorized interdealer quotation system (in each case, the &#147;Closing Bid Price&#148;). If the Shares are
not listed or admitted for trading on any national securities exchange or quoted by any interdealer
quotation system or a similar service, Fair Market Value means the fair market value of a Share as
determined by a majority of the directors of the Company&#146;s Board of Directors.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">3. <U>No Stockholder Rights</U>. This Warrant does not confer upon the Holder or the Holder&#146;s
permitted Assignees any right whatsoever as a stockholder of the Company, including without
limiting the generality of the foregoing, the right to vote, to receive notices and the right to
receive dividends, prior to the exercise of the Holder&#146;s rights to purchase the Shares as provided
herein.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">4. <U>Compliance with Securities Laws</U>. This Warrant and the Shares have not been registered
under the Securities Act of 1933, as amended (the &#147;Act&#148;), or qualified under the securities laws of
the several states of the United States (&#147;State Laws&#148;). The Holder is aware that the issuance of
this Warrant and the issuance of the Shares are being made in reliance on Regulation&nbsp;S under the
Act. This Warrant and the Shares have been purchased for investment and not with a view to
distribution or resale, and may not be assigned, sold or made subject to a security interest,
pledged, hypothecated, or otherwise transferred without an effective registration statement for
such Warrant or Shares under the Act and qualification under State Laws, pursuant to an exemption
from registration and qualification, or an opinion of counsel satisfactory to the Company that such
registration and qualification are not required. Any Shares issued upon the exercise of this
Warrant (unless pursuant to an effective registration statement under the Act) shall bear the
following legend:
</DIV>


<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&nbsp;</B></TD>
    <TD width="1%"><B>&nbsp;</B></TD>
    <TD><B>THIS SECURITY HAS NOT BEEN AND WILL NOT REREGISTERED UNDER THE SECURITIES ACT OF
1933, AS AMENDED, OR APPLICABLE STATE SECURITIES LAWS. THE HOLDER HEREOF, BY
PURCHASING THIS SECURITY, AGREES FOR THE BENEFIT OF THE COMPANY THAT THIS SECURITY
MAY NOT BE OFFERED, SOLD, PLEDGED, OR OTHERWISE TRANSFERRED BY SUCH HOLDER PRIOR TO
THE LATER OF (X)&nbsp;SIX</B></TD>
</TR>

</TABLE>
</DIV>
<P align="center" style="font-size: 10pt"><!-- Folio -->A-2<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">


<DIV style="margin-top: 6pt"><TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR valign="top" style="font-size: 10pt; color: #textcolor#; background: #bgcolor#">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD><B>MONTHS FOLLOWING THE ISSUANCE HEREOF OR (Y)&nbsp;IF APPLICABLE, THREE MONTHS AFTER IT
CEASES TO BE AN AFFILIATE, OTHER THAN (1)&nbsp;TO THE COMPANY, (2)&nbsp;PURSUANT TO AN
EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT AND IN ACCORDANCE WITH ANY
APPLICABLE LAWS OF ANY STATE OF THE UNITED STATES, (3)&nbsp;IN AN OFFSHORE TRANSACTION
COMPLYING WITH REGULATION S UNDER THE SECURITIES ACT, (4)&nbsp;PURSUANT TO AN EXEMPTION
FROM REGISTRATION UNDER THE SECURITIES ACT PROVIDED BY RULE 144, IF APPLICABLE,
UNDER THE SECURITIES ACT OR (5)&nbsp;IN A TRANSACTION THAT DOES NOT REQUIRE REGISTRATION
UNDER THE SECURITIES ACT BUT IS IN ACCORDANCE WITH APPLICABLE STATE SECURITIES LAWS
AND IN RELATION TO WHICH THE HOLDER HAS FURNISHED TO THE COMPANY AN OPINION TO SUCH
EFFECT FROM COUNSEL OF RECOGNISED STANDING IN FORM AND SUBSTANCE SATISFACTORY TO THE
COMPANY PRIOR TO SUCH OFFER, SALE, PLEDGE OR TRANSFER. THE HOLDER HEREOF, BY
PURCHASING THIS SECURITY, REPRESENTS AND AGREES FOR THE BENEFIT OF THE COMPANY THAT
IT IS A NON-U.S. PERSON, AND ACKNOWLEDGES THAT HEDGING TRANSACTIONS INVOLVING THESE
SECURITIES MAY NOT BE CONDUCTED UNLESS CONDUCTED IN COMPLIANCE WITH THE SECURITIES
ACT.</B></TD>
</TR>

</TABLE>
</DIV>
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">5. <U>Sale; Assignment</U>. (a)&nbsp;This Warrant may not be transferred, sold, or made subject to a
security interest or charge, pledged, hypothecated, or otherwise transferred absent compliance with
the transfer restrictions set forth above in this Warrant.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">(b)&nbsp;Upon such compliance with the transfer restrictions and upon the delivery to the Company at its
then executive offices of this Warrant along with a duly completed Assignment Form substantially in
the form of <U>Exhibit&nbsp;A</U> hereto (and the required legal opinion, if any), the Company shall
execute and deliver a new Warrant in the form of this Warrant (including the legend set forth above
on the first page hereof, unless registered under the Act and any applicable State Laws), but
registered in the name of the assignee, to purchase the number of Shares or that fraction of the
Shares issuable under the original Warrant assigned to the assignee. In case the Holder shall
assign this Warrant with respect to fewer than all of the Shares that may be purchased under this
Warrant, the Company shall execute a new warrant in the form of this Warrant for the balance of
such Shares or the remaining fraction of the Shares issuable under the original Warrant and deliver
such new warrant to the Holder.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">(c)&nbsp;Any transfer or sale or attempted transfer or sale of this Warrant in violation of any
provision of this Warrant shall be void, and the Company shall not record such transfer on its
books or treat any purported transferee of the Warrant as the owner of the Warrant for any purpose.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">6. <U>Representations of Holder</U>. The Holder represents and covenants to the Company by
acceptance of this Warrant, as follows:
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a)&nbsp;That the Holder is not a U.S. Person (as defined in Rule&nbsp;902 of Regulation&nbsp;S promulgated
under the Act and is not acquiring the Warrant for the account or benefit of any U.S. Person.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;The Holder acquired this Warrant from the Company and will acquire Shares issuable upon
exercise hereof, for its own account, for investment purposes only and not with a view to the
resale and distribution thereof, in whole or in part.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c)&nbsp;The Holder shall comply with the transfer restrictions set out above and in the Commitment
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->A-3<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Letter (including, without limitation, <U>Schedule&nbsp;B</U> attached thereto and made a part thereof)
and the Holder understands that this Warrant and the Shares issuable on exercise hereof must be
held indefinitely unless subsequently registered under the Act and qualified under any applicable
State Laws, or unless exemptions from registration and qualification are otherwise available.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d)&nbsp;The Holder acknowledges and agrees that hedging transactions involving this Warrant or the
Shares issuable upon exercise of this Warrant may not be conducted unless conducted in compliance
with the Act.
</DIV>
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">7. <U>Capital Adjustments</U>. The Exercise Price and the number of Shares purchasable hereunder
are subject to adjustment from time to time, as follows:
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">(a)&nbsp;If at any time there shall be a merger or consolidation of the Company with or into another
corporation when the Company is not the surviving corporation, then, as part of such merger or
consolidation, lawful provision shall be made so that the Holder shall thereafter be entitled to
receive upon exercise of this Warrant, during the period specified herein and upon payment of the
aggregate Exercise Price then in effect, the number of Shares of stock or other securities or
property of the successor corporation resulting from such merger or consolidation, to which the
Holder would have been entitled in such merger or consolidation, if this Warrant had been exercised
immediately before such merger or consolidation.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">(b)&nbsp;If the Company at any time shall, by subdivision, combination or reclassification of securities
or otherwise, change any of the Shares into the same or a different number of securities of any
other class or classes, this Warrant shall thereafter represent the right to acquire such number
and kind of securities as would have been issuable as the result of such change with respect to the
Shares immediately prior to such subdivision, combination, reclassification or other change.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">(c)&nbsp;If the Company at any time shall split or subdivide its Common Stock, the Exercise Price shall
be proportionately decreased and the number of Shares issuable pursuant to this Warrant shall be
proportionately increased. If the Company at any time shall combine its Common Stock, the Exercise
Price shall be proportionately increased and the number of Shares issuable pursuant to this Warrant
shall be proportionately decreased.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">8. <U>Governing Law</U>. This Warrant shall be governed by and construed for all purposes by in
accordance with the laws of the State of Delaware without reference to the conflicts of laws rules
of any jurisdiction.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">9. <U>Notices</U>. Any notice effecting an exercise of this Warrant shall, if in writing, be
effective upon receipt by the Company of the Warrant, notice of exercise and payment of the
Exercise Price. Other notices shall, if in writing, be effective on receipt, if delivered in person
or by facsimile transmission, or, if given by mail, four (4)&nbsp;days after deposit in the mail
service, air-mail postage pre-paid, in any case to the then executive office of the Company to the
attention of the Company Secretary, or, if to the Holder, to the address given above or to such
other address by notice so given.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">10. <U>Holidays</U>. If the last or appointed day for the taking of any action or the expiration
of any right required or granted herein shall be a Saturday, Sunday or a legal holiday, then such
action may be taken or such right may be exercised on the next succeeding day not a Saturday,
Sunday or a legal holiday.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">11. <U>Lost Warrants</U>. The Company covenants with the Holder that, upon receipt of evidence
reasonably satisfactory to the Company of the loss, theft, destruction or mutilation of this
Warrant and, in the case of any such loss, theft, or destruction, upon receipt of an indemnity
reasonably satisfactory to the Company, or in the case of any such mutilation, upon surrender and
cancellation of such Warrant, the Company will make and deliver a new Warrant of like tenor, in
lieu of the lost, stolen, destroyed or mutilated Warrant.
</DIV>





<P align="center" style="font-size: 10pt"><!-- Folio -->A-4<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">



<DIV align="left" style="font-size: 10pt; margin-top: 6pt">12. <U>Fractional Shares</U>. Fractional Shares may not be purchased hereunder. In lieu of
fractional Shares the Holder shall be entitled to receive a cash payment equal to the fair market
value for such fractional share. Fair market value shall be the consolidated closing bid price on
the NASDAQ Stock Market, LLC on the date of exercise, or, if the Shares are not listed on such
exchange, the closing price on such recognized exchange on which the Shares may then be listed, or,
if the Shares shall not be listed on an exchange, then the average of the bid and asked prices of
the Shares, if the Shares are traded in an over-the-counter market, or, if not regularly traded in
an over the counter market, or if the Directors of the Company determine that the trading prices do
not represent fair value, then such fair value as determined by the Directors.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">14. <U>Headings</U>. The headings in this Warrant are for convenience of reference only and shall
in no way modify or affect the meaning or construction of any of the terms or provisions of this
Warrant.
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>&#091;Signature page follows.&#093;</B>
</DIV>




<P align="center" style="font-size: 10pt"><!-- Folio -->A-5<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">



<DIV align="left" style="font-size: 10pt; margin-top: 6pt">WITNESS the seal of the Company and the signature of its duly authorized officers as of the date
first written above.
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="42%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="55%">&nbsp;</TD>
</TR>
<TR></TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top" colspan="3"><DIV style="margin-left:0px; text-indent:-0px">CLEAN DIESEL TECHNOLOGIES, INC.<br><br>
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">By:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Name: John B Wynne
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Title: Vice President &#038; Interim Chief Financial Officer</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Attest:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Name: Mary Christian-Hein</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Title: Controller</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>







<P align="center" style="font-size: 10pt"><!-- Folio -->A-6<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">




<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><U>Exhibit&nbsp;A to Warrant</U>
</DIV>


<DIV align="Center" style="font-size: 10pt; margin-top: 6pt">Form of Assignment<BR>
&#091;To be executed only upon permitted transfer of Warrant&#093;
</DIV>
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">To: Clean Diesel Technologies, Inc.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">For value received, the undersigned registered holder of the attached Warrant hereby sells, assigns
and transfers unto <B>&#091;insert name of transferee&#093; </B>pursuant to and in accordance with the terms of such
Warrant, the right represented by such Warrant to purchase Shares of Clean Diesel Technologies,
Inc. to which such Warrant relates and appoints Attorney to make such transfer on the books of
Clean Diesel Technologies, Inc. maintained for such purpose, with full power of substitution in the
premises.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Warrant Holder
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">By:
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Name:
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Title:
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Signed in the presence of:
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Date:
</DIV>







<P align="center" style="font-size: 10pt"><!-- Folio -->A-7<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">




<DIV align="center" style="font-size: 10pt; margin-top: 18pt">SCHEDULE B<BR>
TO CLEAN DIESEL TECHNOLOGIES UNIT PURCHASE COMMITMENT<BR>
NON-U.S. PRIVATE PLACEMENT<BR>
TRANSFER RESTRICTIONS
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">The Units, Primary Shares, Warrants and Warrant Shares (collectively, the &#147;Unit Securities&#148;) have
not been registered under the U.S. Securities Act of 1933, as amended (the &#147;Securities Act&#148;), and
may not be offered or sold to or for the account or benefit of &#147;U.S. Persons&#148; (as defined in Rule
902 of Regulation&nbsp;S promulgated under the Securities Act), except pursuant to Regulation&nbsp;S, the
registration requirements of the Securities Act or an exemption from the registration requirements
of the Securities Act.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Accordingly, the Unit Securities are being placed outside the U.S. to non-U.S. Persons in an
offshore transaction in reliance on Regulation&nbsp;S under the Securities Act. The terms &#147;United
States&#148; and &#147;U.S. Person&#148; have the respective meanings given to those terms in Regulation&nbsp;S under
the Securities Act.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">
Each holder of Unit Securities will be deemed to have represented and agreed as follows:
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">A.</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>It is acquiring the Unit Securities for its own account or an account with respect to which
it exercises sole investment discretion and that it and any such account or person is not a
U.S. Person, and it is aware that the acquisition of Unit Securities is being made in reliance
on Regulation&nbsp;S under the Securities Act.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">B.</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>It acknowledges that the Unit Securities have not been registered under the Securities Act
and may not be offered or sold except as provided below.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">C.</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>It understands and agrees:</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">1.</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>that the Unit Securities are being offered only outside the United States to
non-U.S. Persons in an offshore transaction in reliance upon Regulation&nbsp;S under the
Securities Act; and</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">2.</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>that it shall not offer, sell, pledge or otherwise transfer any Unit Security
within six (6)&nbsp;months after the date of original issuance of such Unit Security or, in
the case of an affiliate (as defined in Rule&nbsp;144 promulgated under the Securities Act) of
the Company, at any time until the later of (i)&nbsp;one (1)&nbsp;year after the date of original
issuance of such Unit Security and (ii)&nbsp;three months after it ceases to be an affiliate
of the Company, other than (in each case as indicated and certified by the transferor, in
the case of Primary Shares or Warrant Shares, in the Certificate of Transfer on the
reverse of the certificate representing such Primary Shares or Warrant Shares, and, in
the case of Warrants, in a certificate furnished by the transferor to the Company upon
request for transfer):</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="8%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(a)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>to the Company;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="8%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(b)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>pursuant to an effective registration statement under the Securities Act
and in accordance with any applicable securities laws of any state of the United
States;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="8%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(c)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>in an offshore transaction in accordance with Regulation&nbsp;S under the
Securities Act;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="8%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(d)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>pursuant to an exemption from the registration requirements of the
Securities Act; or</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="8%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(e)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>in a transaction that does not require registration under the Securities
Act but is in accordance with applicable state securities laws and in relation to
which the transferor has furnished to the Company an opinion to such effect from
counsel of recognized standing in form and substance satisfactory to the Company
prior to such offer, sale, pledge or transfer.</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">



</TABLE>
</DIV>
<P align="center" style="font-size: 10pt"><!-- Folio -->B-1<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">


<DIV style="margin-top: 6pt"><TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">



</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">D.</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>It understands that in any resale and transfer of Unit Securities it will, and each
subsequent holder thereof is required to, notify any purchaser of Unit Securities of the
resale restrictions referred to above, if then applicable. This notification requirement will
be satisfied by virtue of the fact that the following legend will be placed on the
certificates representing the Primary Shares, the Warrants and the Warrants Shares, unless
otherwise agreed to by the Company:</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&nbsp;</B></TD>
    <TD width="1%"><B>&nbsp;</B></TD>
    <TD><B>THIS SECURITY HAS NOT BEEN AND WILL NOT REGISTERED UNDER THE SECURITIES ACT OF 1933, AS
AMENDED, OR APPLICABLE STATE SECURITIES LAWS. THE HOLDER HEREOF, BY PURCHASING THIS
SECURITY, AGREES FOR THE BENEFIT OF THE COMPANY THAT THIS SECURITY MAY NOT BE OFFERED, SOLD,
PLEDGED, OR OTHERWISE TRANSFERRED BY SUCH HOLDER PRIOR TO THE LATER OF THE (X)&nbsp;SIX MONTHS
FOLLOWING THE ISSUANCE HEREOF OR (Y)&nbsp;IF APPLICABLE, THREE MONTHS AFTER IT CEASES TO BE AN
AFFILIATE, OTHER THAN (1)&nbsp;TO THE COMPANY, (2)&nbsp;PURSUANT TO AN EFFECTIVE REGISTRATION
STATEMENT UNDER THE SECURITIES ACT AND IN ACCORDANCE WITH ANY APPLICABLE LAWS OF ANY STATE
OF THE UNITED STATES, (3)&nbsp;IN AN OFFSHORE TRANSACTION COMPLYING WITH REGULATION S UNDER THE
SECURITIES ACT, (4)&nbsp;PURSUANT TO AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT
PROVIDED BY RULE 144, IF APPLICABLE, UNDER THE SECURITIES ACT OR (5)&nbsp;IN A TRANSACTION THAT
DOES NOT REQUIRE REGISTRATION UNDER THE SECURITIES ACT BUT IS IN ACCORDANCE WITH APPLICABLE
STATE SECURITIES LAWS AND IN RELATION TO WHICH THE HOLDER HAS FURNISHED TO THE COMPANY AN
OPINION TO SUCH EFFECT FROM COUNSEL OF RECOGNISED STANDING IN FORM AND SUBSTANCE
SATISFACTORY TO THE COMPANY PRIOR TO SUCH OFFER, SALE, PLEDGE OR TRANSFER. THE HOLDER
HEREOF, BY PURCHASING THIS SECURITY, REPRESENTS AND AGREES FOR THE BENEFIT OF THE COMPANY
THAT IT IS A NON-U.S. PERSON, AND ACKNOWLEDGES THAT HEDGING TRANSACTIONS INVOLVING THESE
SECURITIES MAY NOT BE CONDUCTED UNLESS CONDUCTED IN COMPLIANCE WITH THE SECURITIES ACT.</B></TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">E.</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>It acknowledges that the foregoing restrictions apply to holders of beneficial interests in
the Unit Securities as well as to holders of Unit Securities.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">F.</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>It acknowledges that it shall not engage in any hedging transactions involving the Unit
Securities unless in compliance with the Securities Act.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">G.</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>It is a &#147;Qualified Investor&#148; within the meaning of Section&nbsp;86 of the Financial Services and
Markets Act 2000 and an &#147;investment professional&#148; within the meaning of Article&nbsp;19 of the FSMA
2000 (Financial Promotion) Order 2005.</TD>
</TR>

</TABLE>
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->B-2<!-- /Folio -->
</DIV>



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</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.4
<SEQUENCE>3
<FILENAME>v59112exv10w4.htm
<DESCRIPTION>EX-10.4
<TEXT>
<HTML>
<HEAD>
<TITLE>exv10w4</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;10.4</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 50%"><B>Please execute signature page and fax the<BR>
Commitment Letter to &#091;NAME&#093; at Clean Diesel<BR>
Technologies, Inc. &#091;NUMBER&#093;</B>

</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>Clean Diesel Technologies, Inc.<BR>
Offshore Private Placement of </B><B><I>Up to </I></B><B>USD $ &#091;</B><B><I>Insert Number</I></B><B>&#093; of Units<BR>
Form of Commitment Letter</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>This letter is directed at persons having professional experience in matters relating to
investments and any investment in the Company hereunder will be engaged in only with such persons.
Persons who do not have professional experience in matters relating to investments should not sign
this letter.</B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&#091;<B><I>Insert Name</I></B>&#093;, (&#147;<B><I>Buyer</I></B>&#148;), of &#091;<B><I>Insert Address</I></B>&#093; hereby agrees with Clean Diesel Technologies,
Inc., a Delaware corporation (the &#147;<B><I>Company</I></B>&#148;), with a registered office at 10 Middle Street, Suite
1100, Bridgeport, Connecticut 06604, USA to purchase the Units (as defined below) on the Closing
Date (as defined below) on the following terms and conditions, as to which Company and Buyer agree.
The Buyer&#146;s purchase of the Units is part of an offering by the Company to sell Units (the
&#147;<B><I>Offering</I></B>&#148;) to various Buyers for a total Purchase Price of up to USD $ &#091;<B><I>Insert number</I></B>&#093;. The
Offering is made pursuant to and in reliance upon Regulation&nbsp;S promulgated under the U.S.
Securities Act of 1933, as amended (the &#147;<B><I>Act</I></B>&#148;). The Offering is contingent upon the substantially
simultaneous closing by the Company of the merger (the &#147;<B><I>Merger</I></B>&#148;) of the Company&#146;s acquisition
subsidiary with and into Catalytic Solutions, Inc., a California corporation (&#147;<B><I>CSI</I></B>&#148;).
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="13%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="85%">&nbsp;</TD>
</TR>
<TR></TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Units:
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Each Unit shall consist of (a)&nbsp;that number of shares (each, a &#147;<B><I>Primary Share</I></B>&#148;) of the Company&#146;s common
stock, par value $0.01 per share (the &#147;<B><I>Company Common Stock</I></B>&#148;), as is equal to the quotient obtained by
taking the product obtained by multiplying U.S. $ &#091;<B><I>Insert number</I></B>&#093; by the number of Units being subscribed
to, and dividing said product by the average of the consolidated closing bid price of one share of Company
Common Stock as reported on the NASDAQ Stock Market, LLC (&#147;<B><I>Closing Bid Price</I></B>&#148;), for the twenty (20)
trading days immediately preceding the date on which the Merger is publicly announced, and (b)&nbsp;one (1)
Warrant (the &#147;<B><I>Warrant</I></B>&#148;) to purchase one (1)&nbsp;share of Company Common Stock (each, a &#147;<B><I>Warrant Share</I></B>&#148;). The
form of Warrant being issued is set forth as <u>Schedule&nbsp;A</u> hereto, and the terms and conditions of said
Warrants, which terms and conditions are described below under the heading &#147;Warrants,&#148; are as set forth
therein.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Unit Price:
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">The purchase price per Unit (the
&#147;<B><I>Purchase Price</I></B>&#148;) shall be $ &#091;<B><I>Insert number</I></B>&#093;.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Commitment:
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Buyer agrees to purchase from Company &#091;<B><I>Insert number</I></B><I>&#093; </I>Units and to pay a total Purchase Price for such
Units equal to U.S. $ &#091;<B><I>Insert number</I></B>&#093; multiplied by the number of Units being acquired by such Buyer, and,
subject to the terms and conditions set forth herein, Company agrees to sell and issue to Buyer at the
Closing the Primary Shares and Warrants comprising the Units. Buyer acknowledges that this commitment (i)
is irrevocable, (ii)&nbsp;is conditioned upon acceptance by or on behalf of the Company and may be accepted or
rejected in whole or in part by the Company in its sole discretion and (iii)&nbsp;will expire if not accepted
by the Company on or prior to six months from the date hereof.</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

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

<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="13%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="85%">&nbsp;</TD>
</TR>
<TR></TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Warrants:
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">The Warrants shall be immediately exercisable upon issue, have an exercise price per Warrant Share equal
to the quotient obtained by dividing (i)&nbsp;U.S. $30&nbsp;million by (ii)&nbsp;the number of outstanding shares of
Company Common Stock immediately upon the occurrence of the Merger (and giving effect thereto). The
Warrants will have an expiration date upon the earlier to occur of (x)&nbsp;the third anniversary of the
consummation of the Merger or (y)&nbsp;the forty-fifth day after the Company provides notice to the holder of
the Warrant that the Closing Bid Price had exceeded 130% of the exercise price for ten consecutive trading
days. The Warrants would not be publicly traded or registered on any securities exchange. The form and
the terms and conditions of the Warrants shall be that of
<u>Schedule&nbsp;A</u> attached to this Commitment Letter
and the terms and conditions set forth on said <u>Schedule&nbsp;A</u>, and not the summary set forth in this
paragraph, shall govern the interpretation of the Warrants.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Reverse Stock Split:
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">In connection with the Merger, the Company will effect a reverse stock split. The numbers of Primary
Shares and Warrant Shares in this Commitment Letter, as well as the Purchase Price per Unit and the
Closing Bid Price set forth herein are pre-split, and will be adjusted to give effect to the reserve stock
split.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Buyer Status:
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Buyer represents that it is a &#147;Qualified Investor&#148; within the meaning of Section&nbsp;86 of the Financial
Services and Markets Act 2000 and an &#147;investment professional&#148; within the meaning of Article&nbsp;19 of the
FSMA 2000 (Financial Promotion) Order 2005 and is not a &#147;U.S. Person&#148; within the meaning of Rule&nbsp;902 of
Regulation&nbsp;S promulgated under the Act.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Voting Rights:
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Primary Shares and Warrant Shares shall have one vote per share in accordance with Delaware law. Warrant
Shares shall have no voting rights until the Warrants are exercised and the Warrant Shares are issued and
outstanding. Warrants shall have no voting rights.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Purpose:
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Company shall apply the total Purchase Price of the Units sold in the Offering toward the general
corporate expenses of the Company.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Resale <BR>
Limitations:
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Buyer agrees to not sell any Primary Shares or the Warrants or any Warrant Shares for a period of not less
than six (6)&nbsp;months from the date of issuance by the Company of the relevant Primary Shares, Warrant or
Warrant Shares to Buyer. Moreover, the purchase and sale of the Primary Shares, Warrants and Warrant
Shares are subject to Regulation&nbsp;S promulgated under the Act by the U.S. Securities and Exchange
Commission and relating to an available exemption from registration for the sale of securities by U.S.
companies in offshore transactions. To that end Buyer represents, certifies and agrees that (i)&nbsp;it is not
a &#147;U.S Person&#148; (within the meaning of Regulation&nbsp;S) and is not acquiring the Primary Shares, Warrants and
Warrant Shares for the account or benefit of any U.S. Person, (ii) Buyer did not become aware of the
Company or the Units through any form of &#147;directed selling efforts&#148; (as defined in Rule&nbsp;902 of Regulation
S), and no general solicitation or general advertising in violation of the Act has been or will be used
nor will any offers by means of any directed selling efforts in the United States be made by Buyer or any
of its representatives in connection with the offer and sale of any of the Units or the Warrant Shares,
(iii)&nbsp;at the time of the origination of contact concerning the transactions contemplated by this
Commitment Letter and on the date of execution and</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->2<!-- /Folio -->
</DIV>

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

<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="13%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="85%">&nbsp;</TD>
</TR>
<TR></TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">delivery of this Commitment Letter by Buyer, Buyer was outside the United
States, (iv)&nbsp;with respect to the Primary Shares, Warrants and Warrant
Shares, it shall comply with the Transfer Restrictions set out on
<U>Schedule&nbsp;B</U> attached to this Commitment Letter and made a part
hereof, (v)&nbsp;that such Transfer Restrictions shall be set out in a legend on
certificate(s) representing the Primary Shares, the Warrant Shares and the
Warrants, and (vi)&nbsp;that the Company will refuse (or cause its transfer agent
and registrar to refuse) transfer and registration of any Primary Shares or
Warrant Shares or Warrant transferred other than in accordance with the
Transfer Restrictions.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Payment:
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Payment shall be made by Buyer into escrow with the Company
on such date as the Company notifies the Buyer of at least
two (2)&nbsp;days prior thereto (the &#147;<B><I>Payment Date</I></B>&#148;) by wire
transfer to the Company&#146;s account, in U.S. Dollars, to
&#091;<B><I>Insert Bank Account Info</I></B>&#093;. The Payment Date, to be
selected by the Company, shall be not less than five (5)
days, and not more than ten (10)&nbsp;days, from the anticipated
Closing Date (as defined below). Notwithstanding the
earlier Payment Date, the closing with respect to the
Primary Shares and the Warrants (the &#147;<B><I>Closing</I></B>&#148;) shall occur
substantially simultaneously with the consummation of the
Merger and the date of such consummation shall be referred
to as the &#147;<B><I>Closing Date</I></B>.&#148; Subsequent to the Closing, the
Company shall deliver certificates evidencing the Primary
Shares registered with the Company&#146;s transfer agent and the
Warrants registered on the books of the Company, in each
case, in the name and address of the Buyer as set out above
in the ordinary course of business; provided, however, that
the Buyer shall be the owner of such Primary Shares and
Warrants from the Closing Date. If, subsequent to the
Payment Date, the Company determines that the Closing will
not occur, the Company shall promptly return the funds so
deposited in escrow to the Buyer without interest.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Law:
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">This Commitment Letter and the purchase of the Primary
Shares, the Warrants and the Warrant Shares shall be
governed by Delaware law without reference to the conflicts
of laws rules of any jurisdiction.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Miscellaneous:
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">This Commitment Letter is not assignable by Buyer without
the consent of the Company. The representations and
warranties made by the Buyer in this Commitment Letter
shall survive the Closings. <u>Schedule&nbsp;B</u> is an integral part
of this Commitment Letter and shall be deemed incorporated
by reference herein. This Commitment Letter may be
executed in one or more counterparts, all of which together
shall constitute one instrument.</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Signatures:
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">This Commitment Letter to buy and sell Units has been
executed and delivered by the following authorized
representatives of the Buyer and the Company.</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B><I>&#091;Signature page follows.&#093;</I></B>
</DIV>


<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">








</TABLE>
</DIV>
<P align="center" style="font-size: 10pt"><!-- Folio -->3<!-- /Folio -->
</DIV>

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

<DIV style="font-family: 'Times New Roman',Times,serif">


<DIV style="margin-top: 6pt"><TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">



</TABLE>
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="30%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="60%">&nbsp;</TD>
</TR>
<TR></TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Clean Diesel Technologies, Inc.
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&#091;<B><I>Insert Name of Buyer</I></B>&#093;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">By:
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">By:</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Name:
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Name:</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Title:
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Title:</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">No. of Units:</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Total Purchase Price:</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">








</TABLE>
</DIV>
<P align="center" style="font-size: 10pt"><!-- Folio -->4<!-- /Folio -->
</DIV>

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

<DIV style="font-family: 'Times New Roman',Times,serif">


<DIV style="margin-top: 6pt"><TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">



</TABLE>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>&#091;Form of Reg S Warrant&#093;</B>
</DIV>


<DIV align="Center" style="font-size: 10pt; margin-top: 6pt">SCHEDULE A<BR>
FORM OF WARRANT
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 50%"><B><I>No.</I></B>

</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&nbsp;</B></TD>
    <TD width="1%"><B>&nbsp;</B></TD>
    <TD><B>THIS WARRANT HAS NOT BEEN AND WILL NOT REGISTERED UNDER THE SECURITIES ACT OF 1933, AS
AMENDED, OR APPLICABLE STATE SECURITIES LAWS. THE HOLDER HEREOF, BY PURCHASING THIS
WARRANT, AGREES FOR THE BENEFIT OF THE COMPANY THAT THIS WARRANT MAY NOT BE OFFERED, SOLD,
PLEDGED, OR OTHERWISE TRANSFERRED BY SUCH HOLDER PRIOR TO THE LATER OF THE (X)&nbsp;SIX MONTHS
FOLLOWING THE ISSUANCE HEREOF OR (Y)&nbsp;IF APPLICABLE, THREE MONTHS AFTER IT CEASES TO BE AN
AFFILIATE, OTHER THAN (1)&nbsp;TO THE COMPANY, (2)&nbsp;PURSUANT TO AN EFFECTIVE REGISTRATION
STATEMENT UNDER THE U.S. SECURITIES ACT OF 1933, AS AMENDED (THE &#147;SECURITIES ACT&#148;), AND IN
ACCORDANCE WITH ANY APPLICABLE LAWS OF ANY STATE OF THE UNITED STATES, (3)&nbsp;IN AN OFFSHORE
TRANSACTION COMPLYING WITH REGULATION S UNDER THE SECURITIES ACT, (4)&nbsp;PURSUANT TO AN
EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT PROVIDED BY RULE 144, IF APPLICABLE,
UNDER THE SECURITIES ACT OR (5)&nbsp;IN A TRANSACTION THAT DOES NOT REQUIRE REGISTRATION UNDER
THE SECURITIES ACT BUT IS IN ACCORDANCE WITH APPLICABLE STATE SECURITIES LAWS AND IN
RELATION TO WHICH THE HOLDER HAS FURNISHED TO THE COMPANY AN OPINION TO SUCH EFFECT FROM
COUNSEL OF RECOGNISED STANDING IN FORM AND SUBSTANCE SATISFACTORY TO THE COMPANY PRIOR TO
SUCH OFFER, SALE, PLEDGE OR TRANSFER. THE HOLDER HEREOF, BY PURCHASING THIS WARRANT,
REPRESENTS AND AGREES FOR THE BENEFIT OF THE COMPANY THAT IT IS A NON-U.S. PERSON, AND
ACKNOWLEDGES THAT HEDGING TRANSACTIONS INVOLVING THIS WARRANT MAY NOT BE CONDUCTED UNLESS
CONDUCTED IN COMPLIANCE WITH THE SECURITIES ACT.</B></TD>
</TR>

</TABLE>
</DIV>
<DIV align="left" style="font-size: 10pt; margin-top: 6pt"><B>&#091;Insert Date</B>&#093;
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt">&#091;<B>Insert no. of Shares&#093; Shares</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt"><B>Warrant for Purchase of Common Stock<BR>
of Clean Diesel Technologies, Inc.<BR>
(a Delaware Corporation)</B>

</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This Certifies that <B>&#091;Insert Name&#093; </B>(the &#147;Holder&#148;) of &#091;<B>Insert Address</B>&#093; for value received and
subject to the provisions hereinafter set forth is entitled to purchase from Clean Diesel
Technologies, Inc., a Delaware corporation (the &#147;Company&#148;), <B>&#091;Insert No. of Shares&#093; </B>shares of Common
Stock of the Company, par value $.01 per share (the &#147;Shares&#148;), at a price of USD$<B>X.XX </B>per
share<SUP style="FONT-size: 85%; vertical-align: text-top">1</SUP> (the &#147;Exercise
</DIV>


<DIV align="left">
<DIV style="font-size: 3pt; margin-top: 16pt; width: 18%; border-top: 1px solid #000000">&nbsp;</DIV>
</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="96%"></TD>
</TR>

<TR valign="top">
    <TD nowrap align="left"><SUP style="FONT-size: 85%; vertical-align: text-top">1</SUP></TD>
    <TD>&nbsp;</TD>
    <TD>Price to be determined by the Company by
determining the quotient of $30,000,000 divided by the number of outstanding
Shares immediately upon the occurrence of the merger (the &#147;Merger&#148;) of a
subsidiary of the Company with and into Catalytic Solutions, Inc., a California
corporation, and giving effect thereto.</TD>
</TR>

</TABLE>


<P align="center" style="font-size: 10pt"><!-- Folio -->A-1<!-- /Folio -->
</DIV>

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

<DIV style="font-family: 'Times New Roman',Times,serif">





<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Price&#148;) on or before 5:00 p.m. local time at the then executive offices of the Company on or prior
to the Expiration Date (as defined below). This Warrant shall be void unless exercised on or
before the Expiration Date.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">1. <U>Commitment Letter</U>. This Warrant is issued pursuant to that certain Commitment Letter
between the Holder and the Company (the &#147;Commitment Letter&#148;) relating to the Offering (as defined
therein) and the issuances by the Company to the Holder of the Primary Shares (as defined therein)
and this Warrant on the date hereof.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">2. <U>Exercise; Expiration Date</U>. This Warrant may be exercised from time to time by the
Holder as to the whole or any lesser number of the Shares upon tender of this Warrant at the then
executive office of the Company with a written notice signed by the Holder to the attention of the
Company Secretary expressing the Holder&#146;s intent to exercise the same together with payment to the
Company of the Exercise Price of the Shares stated in the notice to be purchased. If this Warrant
is exercised in respect of fewer than all of the Shares that may be purchased under this Warrant,
the Company shall execute a new warrant in the form of this Warrant for the remaining Shares
issuable under the original Warrant and deliver such new Warrant to the Holder.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">This Warrant and all rights hereunder will expire if not exercised by 5:00 p.m. prevailing local
time in New York, New York on the date that is the earlier to occur of (i) <B>&#091;insert
date&#093;</B><SUP style="FONT-size: 85%; vertical-align: text-top">2</SUP>, and (ii)&nbsp;that date which is thirty (30)&nbsp;days after the giving of notice by the
Company to the Holder that the Fair Market Value of one Share has exceeded 130% of the Exercise
Price for ten (10)&nbsp;consecutive days (which 10-day period means, if the Shares are then listed or
traded on an exchange or otherwise quoted, 10 consecutive days for which the Closing Bid Price is
reported), and that the Warrant will therefore expire if not exercised prior to the Expiration
Date.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&#147;Fair Market Value&#148; means (i)&nbsp;the consolidated closing bid price of one Share as reported on the
NASDAQ Stock Market, LLC or on any other principal national securities exchange on which the Shares
are then listed or admitted for trading or (ii)&nbsp;if the Shares are not then listed or admitted for
trading on any national securities exchange, the last reported sale price or, in case no such sale
takes place on each day during the 10-day period referred to below, the average of the highest
reported bid and the lowest reported asked quotation for the Shares, either case as reported on any
authorized interdealer quotation system (in each case, the &#147;Closing Bid Price&#148;). If the Shares are
not listed or admitted for trading on any national securities exchange or quoted by any interdealer
quotation system or a similar service, Fair Market Value means the fair market value of a Share as
determined by a majority of the directors of the Company&#146;s Board of Directors.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">3. <U>No Stockholder Rights</U>. This Warrant does not confer upon the Holder or the Holder&#146;s
permitted Assignees any right whatsoever as a stockholder of the Company, including without
limiting the generality of the foregoing, the right to vote, to receive notices and the right to
receive dividends, prior to the exercise of the Holder&#146;s rights to purchase the Shares as provided
herein.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">4. <U>Compliance with Securities Laws</U>. This Warrant and the Shares have not been registered
under the Securities Act of 1933, as amended (the &#147;Act&#148;), or qualified under the securities laws of
the several states of the United States (&#147;State Laws&#148;). The Holder is aware that the issuance of
this Warrant and the issuance of the Shares are being made in reliance on Regulation&nbsp;S under the
Act. This Warrant and the Shares have been purchased for investment and not with a view to
distribution or resale, and may not be assigned, sold or made subject to a security interest,
pledged, hypothecated, or otherwise transferred without an effective registration statement for
such Warrant or Shares under the Act and qualification
</DIV>



<DIV align="left">
<DIV style="font-size: 3pt; margin-top: 16pt; width: 18%; border-top: 1px solid #000000">&nbsp;</DIV>
</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="96%"></TD>
</TR>

<TR valign="top">
    <TD nowrap align="left"><SUP style="FONT-size: 85%; vertical-align: text-top">2</SUP></TD>
    <TD>&nbsp;</TD>
    <TD>Insert third anniversary of the date of the
Merger.</TD>
</TR>

</TABLE>


<P align="center" style="font-size: 10pt"><!-- Folio -->A-2<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">





<DIV align="left" style="font-size: 10pt; margin-top: 6pt">under State Laws, pursuant to an exemption from registration and qualification, or an opinion of
counsel satisfactory to the Company that such registration and qualification are not required. Any
Shares issued upon the exercise of this Warrant (unless pursuant to an effective registration
statement under the Act) shall bear the following legend:
</DIV>


<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&nbsp;</B></TD>
    <TD width="1%"><B>&nbsp;</B></TD>
    <TD><B>THIS SECURITY HAS NOT BEEN AND WILL NOT REREGISTERED UNDER THE SECURITIES ACT OF
1933, AS AMENDED, OR APPLICABLE STATE SECURITIES LAWS. THE HOLDER HEREOF, BY
PURCHASING THIS SECURITY, AGREES FOR THE BENEFIT OF THE COMPANY THAT THIS SECURITY
MAY NOT BE OFFERED, SOLD, PLEDGED, OR OTHERWISE TRANSFERRED BY SUCH HOLDER PRIOR TO
THE LATER OF (X)&nbsp;SIX MONTHS FOLLOWING THE ISSUANCE HEREOF OR (Y)&nbsp;IF APPLICABLE,
THREE MONTHS AFTER IT CEASES TO BE AN AFFILIATE, OTHER THAN (1)&nbsp;TO THE COMPANY, (2)
PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT AND IN
ACCORDANCE WITH ANY APPLICABLE LAWS OF ANY STATE OF THE UNITED STATES, (3)&nbsp;IN AN
OFFSHORE TRANSACTION COMPLYING WITH REGULATION S UNDER THE SECURITIES ACT, (4)
PURSUANT TO AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT PROVIDED BY RULE
144, IF APPLICABLE, UNDER THE SECURITIES ACT OR (5)&nbsp;IN A TRANSACTION THAT DOES NOT
REQUIRE REGISTRATION UNDER THE SECURITIES ACT BUT IS IN ACCORDANCE WITH APPLICABLE
STATE SECURITIES LAWS AND IN RELATION TO WHICH THE HOLDER HAS FURNISHED TO THE
COMPANY AN OPINION TO SUCH EFFECT FROM COUNSEL OF RECOGNISED STANDING IN FORM AND
SUBSTANCE SATISFACTORY TO THE COMPANY PRIOR TO SUCH OFFER, SALE, PLEDGE OR TRANSFER.
THE HOLDER HEREOF, BY PURCHASING THIS SECURITY, REPRESENTS AND AGREES FOR THE
BENEFIT OF THE COMPANY THAT IT IS A NON-U.S. PERSON, AND ACKNOWLEDGES THAT HEDGING
TRANSACTIONS INVOLVING THESE SECURITIES MAY NOT BE CONDUCTED UNLESS CONDUCTED IN
COMPLIANCE WITH THE SECURITIES ACT.</B></TD>
</TR>

</TABLE>
</DIV>
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">5. <U>Sale; Assignment</U>. (a)&nbsp;This Warrant may not be transferred, sold, or made subject to a
security interest or charge, pledged, hypothecated, or otherwise transferred absent compliance with
the transfer restrictions set forth above in this Warrant.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">(b)&nbsp;Upon such compliance with the transfer restrictions and upon the delivery to the Company at its
then executive offices of this Warrant along with a duly completed Assignment Form substantially in
the form of <U>Exhibit&nbsp;A</U> hereto (and the required legal opinion, if any), the Company shall
execute and deliver a new Warrant in the form of this Warrant (including the legend set forth above
on the first page hereof, unless registered under the Act and any applicable State Laws), but
registered in the name of the assignee, to purchase the number of Shares or that fraction of the
Shares issuable under the original Warrant assigned to the assignee. In case the Holder shall
assign this Warrant with respect to fewer than all of the Shares that may be purchased under this
Warrant, the Company shall execute a new warrant in the form of this Warrant for the balance of
such Shares or the remaining fraction of the Shares issuable under the original Warrant and deliver
such new warrant to the Holder.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">(c)&nbsp;Any transfer or sale or attempted transfer or sale of this Warrant in violation of any
provision of this Warrant shall be void, and the Company shall not record such transfer on its
books or treat any purported transferee of the Warrant as the owner of the Warrant for any purpose.
</DIV>





<P align="center" style="font-size: 10pt"><!-- Folio -->A-3<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">



<DIV align="left" style="font-size: 10pt; margin-top: 6pt">6. <U>Representations of Holder</U>. The Holder represents and covenants to the Company by
acceptance of this Warrant, as follows:
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a)&nbsp;That the Holder is not a U.S. Person (as defined in Rule&nbsp;902 of Regulation&nbsp;S promulgated
under the Act and is not acquiring the Warrant for the account or benefit of any U.S. Person.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;The Holder acquired this Warrant from the Company and will acquire Shares issuable upon
exercise hereof, for its own account, for investment purposes only and not with a view to the
resale and distribution thereof, in whole or in part.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c)&nbsp;The Holder shall comply with the transfer restrictions set out above and in the Commitment
Letter (including, without limitation, <U>Schedule&nbsp;B</U> attached thereto and made a part thereof)
and the Holder understands that this Warrant and the Shares issuable on exercise hereof must be
held indefinitely unless subsequently registered under the Act and qualified under any applicable
State Laws, or unless exemptions from registration and qualification are otherwise available.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d)&nbsp;The Holder acknowledges and agrees that hedging transactions involving this Warrant or the
Shares issuable upon exercise of this Warrant may not be conducted unless conducted in compliance
with the Act.
</DIV>
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">7. <U>Capital Adjustments</U>. The Exercise Price and the number of Shares purchasable hereunder
are subject to adjustment from time to time, as follows:
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">(a)&nbsp;If at any time there shall be a merger or consolidation of the Company with or into another
corporation when the Company is not the surviving corporation, then, as part of such merger or
consolidation, lawful provision shall be made so that the Holder shall thereafter be entitled to
receive upon exercise of this Warrant, during the period specified herein and upon payment of the
aggregate Exercise Price then in effect, the number of Shares of stock or other securities or
property of the successor corporation resulting from such merger or consolidation, to which the
Holder would have been entitled in such merger or consolidation, if this Warrant had been exercised
immediately before such merger or consolidation.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">(b)&nbsp;If the Company at any time shall, by subdivision, combination or reclassification of securities
or otherwise, change any of the Shares into the same or a different number of securities of any
other class or classes, this Warrant shall thereafter represent the right to acquire such number
and kind of securities as would have been issuable as the result of such change with respect to the
Shares immediately prior to such subdivision, combination, reclassification or other change.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">(c)&nbsp;If the Company at any time shall split or subdivide its Common Stock, the Exercise Price shall
be proportionately decreased and the number of Shares issuable pursuant to this Warrant shall be
proportionately increased. If the Company at any time shall combine its Common Stock, the Exercise
Price shall be proportionately increased and the number of Shares issuable pursuant to this Warrant
shall be proportionately decreased.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">8. <U>Governing Law</U>. This Warrant shall be governed by and construed for all purposes by in
accordance with the laws of the State of Delaware without reference to the conflicts of laws rules
of any jurisdiction.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">9. <U>Notices</U>. Any notice effecting an exercise of this Warrant shall, if in writing, be
effective upon receipt by the Company of the Warrant, notice of exercise and payment of the
Exercise Price. Other notices shall, if in writing, be effective on receipt, if delivered in person
or by facsimile transmission, or, if given by mail, four (4)&nbsp;days after deposit in the mail
service, air-mail postage pre-paid, in any case to the then executive office of the Company to the
attention of the Company Secretary, or, if to the Holder, to the
</DIV>




<P align="center" style="font-size: 10pt"><!-- Folio -->A-4<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">



<DIV align="left" style="font-size: 10pt; margin-top: 6pt">address given above or to such other address by notice so given.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">10. <U>Holidays</U>. If the last or appointed day for the taking of any action or the expiration
of any right required or granted herein shall be a Saturday, Sunday or a legal holiday, then such
action may be taken or such right may be exercised on the next succeeding day not a Saturday,
Sunday or a legal holiday.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">11. <U>Lost Warrants</U>. The Company covenants with the Holder that, upon receipt of evidence
reasonably satisfactory to the Company of the loss, theft, destruction or mutilation of this
Warrant and, in the case of any such loss, theft, or destruction, upon receipt of an indemnity
reasonably satisfactory to the Company, or in the case of any such mutilation, upon surrender and
cancellation of such Warrant, the Company will make and deliver a new Warrant of like tenor, in
lieu of the lost, stolen, destroyed or mutilated Warrant.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">12. <U>Fractional Shares</U>. Fractional Shares may not be purchased hereunder. In lieu of
fractional Shares the Holder shall be entitled to receive a cash payment equal to the fair market
value for such fractional share. Fair market value shall be the consolidated closing bid price on
the NASDAQ Stock Market, LLC on the date of exercise, or, if the Shares are not listed on such
exchange, the closing price on such recognized exchange on which the Shares may then be listed, or,
if the Shares shall not be listed on an exchange, then the average of the bid and asked prices of
the Shares, if the Shares are traded in an over-the-counter market, or, if not regularly traded in
an over the counter market, or if the Directors of the Company determine that the trading prices do
not represent fair value, then such fair value as determined by the Directors.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">14. <U>Headings</U>. The headings in this Warrant are for convenience of reference only and shall
in no way modify or affect the meaning or construction of any of the terms or provisions of this
Warrant.
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>&#091;Signature page follows.&#093;</B>
</DIV>




<P align="center" style="font-size: 10pt"><!-- Folio -->A-5<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">



<DIV align="left" style="font-size: 10pt; margin-top: 6pt">WITNESS the seal of the Company and the signature of its duly authorized officers as of the date
first written above.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">CLEAN DIESEL TECHNOLOGIES, INC.
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="62%">&nbsp;</TD>
</TR>
<TR></TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">By:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom" style="font-size:1px">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Name:</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Title:</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Attest:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Name:</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Title:</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>







<P align="center" style="font-size: 10pt"><!-- Folio -->A-6<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">




<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><U>Exhibit&nbsp;A to Warrant</U>
</DIV>


<DIV align="Center" style="font-size: 10pt; margin-top: 6pt">Form of Assignment<BR>
&#091;To be executed only upon permitted transfer of Warrant&#093;
</DIV>
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">To: Clean Diesel Technologies, Inc.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">For value received, the undersigned registered holder of the attached Warrant hereby sells, assigns
and transfers unto <B>&#091;insert name of transferee&#093; </B>pursuant to and in accordance with the terms of such
Warrant, the right represented by such Warrant to purchase Shares of Clean Diesel Technologies,
Inc. to which such Warrant relates and appoints Attorney to make such transfer on the books of
Clean Diesel Technologies, Inc. maintained for such purpose, with full power of substitution in the
premises.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Warrant Holder
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">By:
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Name:
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Title:
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Signed in the presence of:
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Date:
</DIV>




<P align="center" style="font-size: 10pt"><!-- Folio -->A-7<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">




<DIV align="center" style="font-size: 10pt; margin-top: 18pt">SCHEDULE B<BR>
TO CLEAN DIESEL TECHNOLOGIES UNIT PURCHASE COMMITMENT<BR>
NON-U.S. PRIVATE PLACEMENT<BR>
TRANSFER RESTRICTIONS
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">The Units, Primary Shares, Warrants and Warrant Shares (collectively, the &#147;Unit Securities&#148;) have
not been registered under the U.S. Securities Act of 1933, as amended (the &#147;Securities Act&#148;), and
may not be offered or sold to or for the account or benefit of &#147;U.S. Persons&#148; (as defined in Rule
902 of Regulation&nbsp;S promulgated under the Securities Act), except pursuant to Regulation&nbsp;S, the
registration requirements of the Securities Act or an exemption from the registration requirements
of the Securities Act.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Accordingly, the Unit Securities are being placed outside the U.S. to non-U.S. Persons in an
offshore transaction in reliance on Regulation&nbsp;S under the Securities Act. The terms &#147;United
States&#148; and &#147;U.S. Person&#148; have the respective meanings given to those terms in Regulation&nbsp;S under
the Securities Act.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Each holder of Unit Securities will be deemed to have represented and agreed as follows:
</DIV>


<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">A.</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>It is acquiring the Unit Securities for its own account or an account with respect to which
it exercises sole investment discretion and that it and any such account or person is not a
U.S. Person, and it is aware that the acquisition of Unit Securities is being made in reliance
on Regulation&nbsp;S under the Securities Act.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">B.</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>It acknowledges that the Unit Securities have not been registered under the Securities Act
and may not be offered or sold except as provided below.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">C.</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>It understands and agrees:</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">1.</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>that the Unit Securities are being offered only outside the United States to
non-U.S. Persons in an offshore transaction in reliance upon Regulation&nbsp;S under the
Securities Act; and</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">2.</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>that it shall not offer, sell, pledge or otherwise transfer any Unit Security
within six (6)&nbsp;months after the date of original issuance of such Unit Security or, in
the case of an affiliate (as defined in Rule&nbsp;144 promulgated under the Securities Act) of
the Company, at any time until the later of (i)&nbsp;one (1)&nbsp;year after the date of original
issuance of such Unit Security and (ii)&nbsp;three months after it ceases to be an affiliate
of the Company, other than (in each case as indicated and certified by the transferor, in
the case of Primary Shares or Warrant Shares, in the Certificate of Transfer on the
reverse of the certificate representing such Primary Shares or Warrant Shares, and, in
the case of Warrants, in a certificate furnished by the transferor to the Company upon
request for transfer):</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="8%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(a)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>to the Company;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="8%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(b)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>pursuant to an effective registration statement under the Securities Act
and in accordance with any applicable securities laws of any state of the United
States;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="8%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(c)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>in an offshore transaction in accordance with Regulation&nbsp;S under the
Securities Act;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="8%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(d)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>pursuant to an exemption from the registration requirements of the
Securities Act; or</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="8%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(e)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>in a transaction that does not require registration under the Securities
Act but is in accordance with applicable state securities laws and in relation to
which the transferor has furnished to the Company an opinion to such effect from
counsel of recognized standing in form and substance satisfactory to the Company
prior to such offer, sale, pledge or transfer.</TD>
</TR>

</TABLE>
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->B-1<!-- /Folio -->
</DIV>

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

<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">D.</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>It understands that in any resale and transfer of Unit Securities it will, and each
subsequent holder thereof is required to, notify any purchaser of Unit Securities of the
resale restrictions referred to above, if then applicable. This notification requirement will
be satisfied by virtue of the fact that the following legend will be placed on the
certificates representing the Primary Shares, the Warrants and the Warrants Shares, unless
otherwise agreed to by the Company:</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&nbsp;</B></TD>
    <TD width="1%"><B>&nbsp;</B></TD>
    <TD><B>THIS SECURITY HAS NOT BEEN AND WILL NOT REGISTERED UNDER THE SECURITIES ACT OF 1933, AS
AMENDED, OR APPLICABLE STATE SECURITIES LAWS. THE HOLDER HEREOF, BY PURCHASING THIS
SECURITY, AGREES FOR THE BENEFIT OF THE COMPANY THAT THIS SECURITY MAY NOT BE OFFERED, SOLD,
PLEDGED, OR OTHERWISE TRANSFERRED BY SUCH HOLDER PRIOR TO THE LATER OF THE (X)&nbsp;SIX MONTHS
FOLLOWING THE ISSUANCE HEREOF OR (Y)&nbsp;IF APPLICABLE, THREE MONTHS AFTER IT CEASES TO BE AN
AFFILIATE, OTHER THAN (1)&nbsp;TO THE COMPANY, (2)&nbsp;PURSUANT TO AN EFFECTIVE REGISTRATION
STATEMENT UNDER THE SECURITIES ACT AND IN ACCORDANCE WITH ANY APPLICABLE LAWS OF ANY STATE
OF THE UNITED STATES, (3)&nbsp;IN AN OFFSHORE TRANSACTION COMPLYING WITH REGULATION S UNDER THE
SECURITIES ACT, (4)&nbsp;PURSUANT TO AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT
PROVIDED BY RULE 144, IF APPLICABLE, UNDER THE SECURITIES ACT OR (5)&nbsp;IN A TRANSACTION THAT
DOES NOT REQUIRE REGISTRATION UNDER THE SECURITIES ACT BUT IS IN ACCORDANCE WITH APPLICABLE
STATE SECURITIES LAWS AND IN RELATION TO WHICH THE HOLDER HAS FURNISHED TO THE COMPANY AN
OPINION TO SUCH EFFECT FROM COUNSEL OF RECOGNISED STANDING IN FORM AND SUBSTANCE
SATISFACTORY TO THE COMPANY PRIOR TO SUCH OFFER, SALE, PLEDGE OR TRANSFER. THE HOLDER
HEREOF, BY PURCHASING THIS SECURITY, REPRESENTS AND AGREES FOR THE BENEFIT OF THE COMPANY
THAT IT IS A NON-U.S. PERSON, AND ACKNOWLEDGES THAT HEDGING TRANSACTIONS INVOLVING THESE
SECURITIES MAY NOT BE CONDUCTED UNLESS CONDUCTED IN COMPLIANCE WITH THE SECURITIES ACT.</B></TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left"><B>E.</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>It acknowledges that the foregoing restrictions apply to holders of beneficial interests in
the Unit Securities as well as to holders of Unit Securities.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">F.</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>It acknowledges that it shall not engage in any hedging transactions involving the Unit
Securities unless in compliance with the Securities Act.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">G.</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>It is a &#147;Qualified Investor&#148; within the meaning of Section&nbsp;86 of the Financial Services and
Markets Act 2000 and an &#147;investment professional&#148; within the meaning of Article&nbsp;19 of the FSMA
2000 (Financial Promotion) Order 2005.</TD>
</TR>

</TABLE>
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->B-2<!-- /Folio -->
</DIV>




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</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-21
<SEQUENCE>4
<FILENAME>v59112exv21.htm
<DESCRIPTION>EX-21
<TEXT>
<HTML>
<HEAD>
<TITLE>exv21</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"><U><B>Exhibit&nbsp;21</B></U>
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>SUBSIDIARIES OF REGISTRANT</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Clean Diesel Technologies, Inc.&#146;s subsidiaries as of December&nbsp;31, 2010 are listed below.
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="9%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="7%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="7%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Common</B></TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>State/Jurisdiction of</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Equity</B></TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Name of Subsidiary</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Incorporation</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Ownership</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Clean Diesel Technologies Limited</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">United Kingdom</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">100%</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Clean Diesel International, LLC</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Connecticut</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">100%</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Platinum Plus, Inc.</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Delaware</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">100%</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Catalytic Solutions, Inc.</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">California</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">100%</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">CSI Aliso, Inc.</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">California</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">100%</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Catalytic Solutions Holdings, Inc.</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Delaware</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">100%</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Catalytic Solutions Czechia s.r.o.</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Czech Republic</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">100%</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">ECS Holdings, Inc.</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Delaware</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">100%</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Engine Control Systems Ltd.</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Nevada</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">100%</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Engine Control Systems Limited</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">New Brunswick</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">100%</TD>
</TR>
<TR valign="bottom" style="background: #cceeff">
    <TD><DIV style="margin-left:15px; text-indent:-15px">Engine Control Systems Europe AB</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Sweden</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">100%</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

</BODY>
</HTML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23
<SEQUENCE>5
<FILENAME>v59112exv23.htm
<DESCRIPTION>EX-23
<TEXT>
<HTML>
<HEAD>
<TITLE>exv23</TITLE>
</HEAD>
<BODY bgcolor="#FFFFFF">
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<DIV style="font-family: 'Times New Roman',Times,serif">


<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><U><B>Exhibit&nbsp;23</B></U>
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>Consent of Independent Registered Public Accounting Firm</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">The Board of Directors<BR>
Clean Diesel Technologies, Inc.:

</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">We consent to the incorporation by reference in the registration statements on Form&nbsp;S-3 (No.&nbsp;333-
166865) and Forms S-8 (Nos. 333-151777, 333-117057, 333-33276 and 333-16939) of Clean Diesel
Technologies, Inc. of our report dated March&nbsp;31, 2011, with respect to the consolidated balance
sheets of Clean Diesel Technologies, Inc. and subsidiaries 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, which report appears in the December&nbsp;31, 2010 annual report on
Form 10-K of Clean Diesel Technologies, Inc.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Our report dated March&nbsp;31, 2011 contains an explanatory paragraph that states that Clean Diesel
Technologies, Inc. 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="center" style="font-size: 10pt; margin-top: 18pt">/s/ KPMG LLP
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Los Angeles, California<BR>
March&nbsp;31, 2011

</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

</BODY>
</HTML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.1
<SEQUENCE>6
<FILENAME>v59112exv31w1.htm
<DESCRIPTION>EX-31.1
<TEXT>
<HTML>
<HEAD>
<TITLE>exv31w1</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"><U><B>Exhibit&nbsp;31.1</B></U>
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>Certification Pursuant to Section&nbsp;302 of the Sarbanes-Oxley Act of 2002</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">I, Charles F. Call, certify that:
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">1. I have reviewed this Annual Report on Form 10-K (the &#147;report&#148;) of Clean Diesel
Technologies, Inc. (the &#147;registrant&#148;);
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">2. Based on my knowledge, this report does not contain any untrue statement of a material
fact or omit to state a material fact necessary to make the statements made, in light of the
circumstances under which such statements were made, not misleading with respect to the period
covered by this report;
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">3. Based on my knowledge, the financial statements, and other financial information
included in this report, fairly present in all material respects the financial condition, results
of operations and cash flows of the registrant as of, and for, the periods presented in this
report;
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">4. The registrant&#146;s other certifying officer and I are responsible for establishing and
maintaining disclosure controls and procedures (as defined in Exchange Act Rules&nbsp;13a-15 (e)&nbsp;and
15d-15 (e)) and internal control over financial reporting (as defined in Exchange Act Rules&nbsp;13a-15
(f)&nbsp;and 15d-15 (f)) for the registrant and have:
</DIV>


<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">a)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>designed such disclosure controls and procedures, or caused such
disclosure controls and procedures to be designed under our
supervision, to ensure that material information relating to the
registrant, including its consolidated subsidiaries, is made known to
us by others within those entities, particularly during the period in
which this report is being prepared;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">b)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>designed such internal control over financial reporting, or caused
such internal control over financial reporting to be designed under
our supervision, to provide reasonable assurance regarding the
reliability of financial reporting and the preparation of financial
statements for external purposes in accordance with generally accepted
accounting principles;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">c)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>evaluated the effectiveness of the registrant&#146;s disclosure controls
and procedures and presented in this report our conclusions about the
effectiveness of the disclosure controls and procedures, as of the end
of the period covered by this report based on such evaluation; and</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">d)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>disclosed in this report any change in the registrant&#146;s internal
control over financial reporting that occurred during the registrant&#146;s
fourth fiscal quarter of 2010 that has materially affected, or is
reasonably likely to materially affect, the registrant&#146;s internal
control over financial reporting; and</TD>
</TR>

</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">5. The registrant&#146;s other certifying officer and I have disclosed, based on our most
recent evaluation of internal control over financial reporting, to the registrant&#146;s auditors and
the audit committee of the registrant&#146;s board of directors (or persons performing the equivalent
functions):
</DIV>


<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">a)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>all significant deficiencies and material weaknesses in the design or
operation of internal control over financial reporting, which are
reasonably likely to adversely affect the registrant&#146;s ability to
record, process, summarize and report financial information; and</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">b)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>any fraud, whether or not material, that involves management or other
employees who have a significant role in the registrant&#146;s internal
control over financial reporting.</TD>
</TR>

</TABLE>
</DIV>

<TABLE width="100%" border="0" cellspacing="0" cellpadding="0" style="font-size: 10pt">
<TR>
    <TD width="48%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="15%">&nbsp;</TD>
</TR>
<TR>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD colspan="3" align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">Date:  March 31, 2011&nbsp;</TD>
    <TD valign="top">By:&nbsp;&nbsp;</TD>
    <TD colspan="2" style="border-bottom: 1px solid #000000" align="left">/s/ Charles F. Call
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Charles F. Call&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Director and Chief Executive Officer&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>

</TABLE>

<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

</BODY>
</HTML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.2
<SEQUENCE>7
<FILENAME>v59112exv31w2.htm
<DESCRIPTION>EX-31.2
<TEXT>
<HTML>
<HEAD>
<TITLE>exv31w2</TITLE>
</HEAD>
<BODY bgcolor="#FFFFFF">
<!-- PAGEBREAK -->

<DIV style="font-family: 'Times New Roman',Times,serif">


<TABLE width="100%" border="0" cellspacing="0" cellpadding="0" style="font-size: 10pt">
<TR>
    <TD width="48%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="15%">&nbsp;</TD>
</TR>

</TABLE>

<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><U><B>Exhibit&nbsp;31.2</B></U>
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>Certification Pursuant to Section&nbsp;302 of the Sarbanes-Oxley Act of 2002</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">I, Nikhil A. Mehta, certify that:
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">1. I have reviewed this Annual Report on Form 10-K (the &#147;report&#148;) of Clean Diesel
Technologies, Inc. (the &#147;registrant&#148;);
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">2. Based on my knowledge, this report does not contain any untrue statement of a material
fact or omit to state a material fact necessary to make the statements made, in light of the
circumstances under which such statements were made, not misleading with respect to the period
covered by this report;
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">3. Based on my knowledge, the financial statements, and other financial information
included in this report, fairly present in all material respects the financial condition, results
of operations and cash flows of the registrant as of, and for, the periods presented in this
report;
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">4. The registrant&#146;s other certifying officer and I are responsible for establishing and
maintaining disclosure controls and procedures (as defined in Exchange Act Rules&nbsp;13a-15 (e)&nbsp;and
15d-15 (e)) and internal control over financial reporting (as defined in Exchange Act Rules&nbsp;13a-15
(f)&nbsp;and 15d-15 (f)) for the registrant and have:
</DIV>


<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">


<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">a)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>designed such disclosure controls and procedures, or caused such
disclosure controls and procedures to be designed under our
supervision, to ensure that material information relating to the
registrant, including its consolidated subsidiaries, is made known to
us by others within those entities, particularly during the period in
which this report is being prepared;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">b)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>designed such internal control over financial reporting, or caused
such internal control over financial reporting to be designed under
our supervision, to provide reasonable assurance regarding the
reliability of financial reporting and the preparation of financial
statements for external purposes in accordance with generally accepted
accounting principles;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">c)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>evaluated the effectiveness of the registrant&#146;s disclosure controls
and procedures and presented in this report our conclusions about the
effectiveness of the disclosure controls and procedures, as of the end
of the period covered by this report based on such evaluation; and</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">d)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>disclosed in this report any change in the registrant&#146;s internal
control over financial reporting that occurred during the registrant&#146;s
fourth fiscal quarter of 2010 that has materially affected, or is
reasonably likely to materially affect, the registrant&#146;s internal
control over financial reporting; and</TD>
</TR>

</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">5. The registrant&#146;s other certifying officer and I have disclosed, based on our most
recent evaluation of internal control over financial reporting, to the registrant&#146;s auditors and
the audit committee of the registrant&#146;s board of directors (or persons performing the equivalent
functions):
</DIV>


<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">a)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>all significant deficiencies and material weaknesses in the design or
operation of internal control over financial reporting, which are
reasonably likely to adversely affect the registrant&#146;s ability to
record, process, summarize and report financial information; and</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">b)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>any fraud, whether or not material, that involves management or other
employees who have a significant role in the registrant&#146;s internal
control over financial reporting.</TD>
</TR>

</TABLE>
</DIV>

<TABLE width="100%" border="0" cellspacing="0" cellpadding="0" style="font-size: 10pt">
<TR>
    <TD width="48%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="15%">&nbsp;</TD>
</TR>
<TR>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD colspan="3" align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">Date:  March 31, 2011&nbsp;</TD>
    <TD valign="top">By:&nbsp;&nbsp;</TD>
    <TD colspan="2" style="border-bottom: 1px solid #000000" align="left">/s/ Nikhil A. Mehta
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Nikhil A. Mehta&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Chief Financial Officer&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>

</TABLE>

<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

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<DOCUMENT>
<TYPE>EX-32
<SEQUENCE>8
<FILENAME>v59112exv32.htm
<DESCRIPTION>EX-32
<TEXT>
<HTML>
<HEAD>
<TITLE>exv32</TITLE>
</HEAD>
<BODY bgcolor="#FFFFFF">
<!-- PAGEBREAK -->

<DIV style="font-family: 'Times New Roman',Times,serif">


<TABLE width="100%" border="0" cellspacing="0" cellpadding="0" style="font-size: 10pt">
<TR>
    <TD width="48%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="15%">&nbsp;</TD>
</TR>

</TABLE>

<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><U><B>Exhibit&nbsp;32</B></U>
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>Certifications Pursuant to Section&nbsp;906 of the Sarbanes-Oxley Act of 2002,<BR>
18 U.S.C. Section&nbsp;1350</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">The undersigned, Charles F. Call and Nikhil A. Mehta, in their capacities as Chief Executive
Officer and Chief Financial Officer, respectively, of Clean Diesel Technologies, Inc. (the
&#147;Registrant&#148;) do each hereby certify with respect to the Annual Report on Form 10-K of the
Registrant for the period ended December&nbsp;31, 2010, as filed with the Securities and Exchange
Commission on the date thereof (the &#147;Report&#148;), that, to the best of his or her knowledge:
</DIV>




<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 4%">(1)&nbsp;The Report fully complies with the requirements of Section 13(a) or 15(d) of the
Securities Exchange Act of 1934; and
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 4%">(2)&nbsp;The information contained in the Report fairly presents, in all material respects, the
financial condition and results of operations of Registrant as of, and for, the periods
presented in this Report.
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="10%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="45%">&nbsp;</TD>
</TR>
<TR></TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">/s/ Charles F. Call
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Charles F. Call</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Chief Executive Officer and Director</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">March&nbsp;31, 2011</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">/s/ Nikhil A. Mehta</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top" style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Nikhil A. Mehta</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Chief Financial Officer</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">March&nbsp;31, 2011</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt"><I>The foregoing certification is being furnished solely pursuant to 18 U.S.C. Section&nbsp;1350, as
adopted pursuant to Section&nbsp;906 of the Sarbanes-Oxley Act of 2002, and is not being &#147;filed&#148; as part
of the Form 10-K or as a separate disclosure document for purposes of Section&nbsp;18 of the Securities
Exchange Act of 1934, as amended (the &#147;Exchange Act&#148;), or otherwise subject to liability under that
section. This certification shall not be deemed to be incorporated by reference into any filing
under the Securities Act of 1933, as amended, or the Exchange Act except to the extent that this
Exhibit&nbsp;32.1 is expressly and specifically incorporated by reference in any such filing.</I>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt"><I>A signed original of this written statement required by Section&nbsp;906 has been provided to the
Registrant and will be retained by the Registrant and furnished to the Securities and Exchange
Commission or its staff upon request.</I>
</DIV>



<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>



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