CDTi Unveils Breakthrough Clean Air Technology

Clean Diesel Technologies, Inc. CDTI ("CDTi" or "the Company"), a leader in advanced emission control technology, announced the United States Patent and Trademark Office (USPTO) awarded it two new patents covering CDTi's new technology that replaces costly platinum group and rare earth metals in catalytic converters. These patents represent the first of a family of patents for CDTi's Spinel™ technology, a proprietary clean emissions exhaust technology that promises to dramatically reduce the cost of attaining more stringent clean air standards. The new technology will power multiple catalytic product lines that the Company believes have the potential to be highly disruptive to the traditional platinum-based or rare earth-based device industry. This is the Company's first public announcement regarding its Spinel technology, the development of which has been kept confidential until now. CEO Chris Harris commented, "Currently global OEMs spend billions of dollars annually on platinum group metals (PGMs) mined in South Africa and Russia, and hundreds of millions of dollars on Chinese-sourced rare earth metals. These costs are expected to dramatically increase with conventional technology as new regulations like U.S. EPA Tier 3 kick in. Spinel technology solves a major industry supply and cost problem and marks a major breakthrough both for us and for all OEMs around the world manufacturing fossil fuel-powered engines." About Spinel Technology A family of proprietary materials using various base metals that replace costly PGMs and rare earth metals in coatings on standard catalytic converters Works across a wide range of engine and vehicle applications – both gasoline and diesel Advanced testing underway on production models of popular passenger cars and heavy duty vehicles at respected independent vehicle test facilities Spinel Technology Significance and Benefits Potential for significant cost savings for OEMs by cutting out expensive PGMs and rare earth metals Currently OEMs spend over $6 billion a year on PGMs (source: derived from Johnson Matthey PLC: Platinum 2013 Interim Review) Enables early, cost-effective compliance with stricter emissions standards in the U.S. and around the world Mitigates OEM exposure to supply uncertainty and price volatility in the PGM and rare earth markets CTO Dr. Stephen Golden added, "The Spinel technology is the result of hard work and ingenuity by our world-class R&D team. It is an entirely new materials science pathway to meeting tighter regulations at much lower cost. Key validation vehicle testing is underway in parallel with aggressively building a broad IP portfolio as we incorporate Spinel technology into specific products for global OEMs." For more information on CDTi's Spinel technology, please visit www.cdti.com/spinel.