Clean Diesel Announces Appointment of European Financial Advisers and Trading on Frankfurt Stock Exchange

STAMFORD, Conn.--April 27, 2006--Clean Diesel Technologies Inc. ("Clean Diesel") or (the "Company") (OTCBB:CDTI, AIM:CDT/CDTS and XETRA:CDI), a developer of technological solutions to reduce harmful engine emissions, announces that it is has expanded its market profile via the start of trading in the Company's shares on the Frankfurt Stock Exchange and Xetra.

Clean Diesel has appointed Innovator Capital Limited, the specialist London based corporate finance and advisory firm, as a financial adviser with the specific brief of raising awareness of the Company among environmental and renewable focused investors in Continental Europe. As part of this initiative, Lang & Schwarz Wertpapierhandel AG, based in Dusseldorf, is fulfilling the role of Designated Sponsor. Innovator Capital will work in conjunction with the company's UK nominated advisor Nabarro Wells and UK broker JM Finn.

Dr. Bernhard Steiner, CEO of Clean Diesel commented: "This marks an exciting stage in Clean Diesel's development. We create technologies that are proven commercial successes and continental Europe is a huge market for us as the region boasts a highly sophisticated renewables and clean energy sector. We are pleased to have a strong group of advisors to help grow our potential even further."

"We are delighted with the investor support shown so far in Germany where trading has already heightened Clean Diesel's visibility among potential new partners and clients. We are confident that this will significantly increase the scope for commercial benefits."

Mungo Park, Executive Chairman of Innovator Capital said, "Governments of many key countries around the world are now committed to further improving emission standards, especially with regard to both industrial and automotive diesel engines. We look forward to working with Clean Diesel to introduce them to the foremost European investors in this rapidly growing sector."

About Clean Diesel Technologies, Inc.

Clean Diesel Technologies, Inc. and its UK representative office, Clean Diesel International LLC, is a developer of technological solutions to reduce harmful engine emissions. Clean Diesel Technologies has patented products that reduce emissions from combustion engines while simultaneously improving fuel economy and power. Products include Platinum Plus(R) fuel-borne catalysts (FBC), the Platinum Plus Purifier System and the ARIS(R) 2000 urea-injection systems for selective catalytic reduction of NOx. Platinum Plus and ARIS are registered trademarks of Clean Diesel Technologies, Inc. For more information, visit CDT at www.cdti.com or contact the Company directly.