Clean Diesel Technologies, Inc. Announces Intention to Hold an Investor Conference Call

Clean Diesel Technologies, Inc. (Nasdaq:CDTI), the cleantech emissions reduction company providing sustainable solutions to reduce emissions, increase energy efficiency and lower the carbon intensity of on- and off-road engine applications, today announced its intention to hold an investor conference call to discuss its proposed merger with Catalytic Solutions Inc. (LSE:CTS) and (LSE:CTSU), a global manufacturer and distributor of emissions control systems and products, focused in the heavy duty diesel and light duty vehicle markets. The Company plans to hold the conference call when its definitive proxy materials are available following the Company's Registration Statement on Form S-4 filed with the Securities and Exchange Commission (SEC) becoming effective.  

Clean Diesel's CEO and President Michael L. Asmussen stated, "While we are eager to discuss the merger agreement and the exciting opportunity it represents with our stockholders, we believe the best time to do so will be when definitive proxy materials are available. We look forward to announcing the details of the call as soon as possible."  

About Clean Diesel Technologies, Inc.

Clean Diesel Technologies is a cleantech company providing sustainable solutions to reduce emissions, increase energy efficiency and lower the carbon intensity of on- and off-road engine applications. Clean Diesel's patented technologies and products allow manufacturers and operators to comply with increasingly strict regulatory emissions and air quality standards, while also improving fuel economy and power.

The Company's solutions significantly reduce emissions formed by the combustion of fossil fuels and biofuels, including particulate matter (PM), nitrogen oxides (NOx), carbon monoxide (CO) and hydrocarbons (HC)—without increasing secondary emissions, such as nitrogen dioxide (NO2). As a result, they are effective for: OEMs, Tier 1 suppliers and retrofit providers; businesses seeking solutions and expertise upon entering the emissions control market; operators requiring compliant emissions solutions; fuel, biofuel and additive suppliers seeking low emissions and energy efficient products; and regulators creating public policy. Clean Diesel's solutions, therefore, are ideal for on-road vehicles and applications in a wide range of industries, including construction, mining, agriculture, port/freight handling, locomotive, marine and power generation.

Clean Diesel develops and manages intellectual property from original concept to full-scale commercial deployment. Building on almost 200 granted and pending patents, its offerings include ARIS® selective catalytic reduction (SCR); the patented combination of SCR and exhaust gas recirculation (EGR); hydrocarbon injection for emissions control applications; Platinum Plus® Fuel-Borne Catalyst (FBC); the Purifier™ family of particulate filter systems; and its wire mesh particulate filter technologies. The Company was founded in 1995 and is headquartered in Bridgeport, Connecticut. A wholly-owned subsidiary, Clean Diesel International, LLC is based in London, England.

For more information, please visit www.cdti.com.

The Clean Diesel Technologies, Inc. logo is available at http://www.globenewswire.com/newsroom/prs/?pkgid=5742

Safe Harbor

Certain statements in this news release constitute "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Such forward-looking statements involve known or unknown risks, including those detailed in the company's filings with the U.S. Securities and Exchange Commission, uncertainties and other factors which may cause the actual results, performance or achievements of the company, or industry results, to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof.

CONTACT:  Clean Diesel Technologies, Inc. 
          John Wynne, Vice President, Treasurer
           and Interim Chief Financial Officer
          [phone]
          [e-mail]