CDTi Added to the Russell Microcap Index

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VENTURA, Calif., June 30, 2014 (GLOBE NEWSWIRE) -- Clean Diesel Technologies, Inc. (Nasdaq:CDTI) ("CDTi" or the "Company"), a leader in advanced emissions control solutions, announced that its stock has been added to the Russell Microcap Index following Russell Investments' reconstitution of its comprehensive set of U.S. and global equity indexes on June 27, 2014.

Membership in the Russell Microcap Index, which remains in place for one year, means automatic inclusion in the appropriate growth and value style indexes. Russell determines membership for its equity indexes primarily by objective, market-capitalization rankings and style attributes.

Russell indexes are widely used by investment managers and institutional investors for index funds and as benchmarks for active investment strategies. Russell calculates more than 700,000 benchmarks daily covering approximately 98% of the investable market globally, 80 countries and more than 10,000 securities. Approximately $5.2 trillion in assets are benchmarked to the Russell Indexes.

Annual reconstitution of Russell Indexes captures the 4,000 largest U.S. stocks as of the end of May, ranking them by total market capitalization to create the Russell 3000® Index and Russell Microcap Index. These investment tools originated from Russell's multi-manager investment business in the early 1980s when the company saw the need for a more objective, market-driven set of benchmarks in order to evaluate outside investment managers.

Total returns data for the Russell Microcap and other Russell Indexes is available at http://www.russell.com/indexes/data/US_Equity/Russell_US_Index_returns.asp.

About Russell:

Russell Investments (Russell) is a global asset manager and one of only a few firms that offers actively managed multi-asset portfolios and services that include advice, investments and implementation. Russell stands with institutional investors, financial advisors and individuals working with their advisors—using the firm's core capabilities that extend across capital market insights, manager research, portfolio construction, portfolio implementation and indexes to help each achieve their desired investment outcomes. Russell has more than $259 billion in assets under management (as of 3/31/2014) and works with over 2,500 institutional clients, independent distribution partners and individual investors globally. As a consultant to some of the largest pools of capital in the world, Russell has $2.4 trillion in assets under advisement (as of 6/30/2013). It has four decades of experience researching and selecting investment managers and meets annually with more than 2,200 managers around the world. Russell traded more than $1.6 trillion in 2013 through its implementation services business. Russell also calculates approximately 700,000 benchmarks daily covering 98% of the investable market globally, including more than 80 countries and more than 10,000 securities. Approximately $5.2 trillion in assets are benchmarked (as of 12/31/2013) to the Russell Indexes, which have provided investors with 30 years of smarter beta.

About CDTi

CDTi is a vertically integrated global manufacturer and distributor of emissions control systems and products, focused on the heavy duty diesel and light duty vehicle markets. CDTi utilizes its proprietary patented Mixed Phase Catalyst (MPC®) technology, as well as its ARIS® selective catalytic reduction, Platinum Plus® fuel-borne catalyst, and other related technologies to provide high-value sustainable solutions to reduce emissions, increase energy efficiency and lower the carbon intensity of on- and off-road combustion engine systems. CDTi is headquartered in Ventura, California and currently has operations in the U.S., the U.K., Canada, France, Japan and Sweden. For more information, please visit www.cdti.com.

CONTACT: Kevin M. McGrath Cameron Associates, Inc. Tel: +1 (212) 245-4577

Source:Clean Diesel Technologies, Inc.