Johnson Matthey's Catalytic Converter Certified by California's San Joaquin Valley Unified Air Pollution Control District for Agricultural Engines


JM's 3-way (NSCR) Catalytic Converter Meets District Rule 4702 Controlling Emissions from Agricultural Rich-Burn Gas Engines

Malvern, PA, December 8, 2008 - The San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD) - which protects America's leading agricultural region in California-has certified Johnson Matthey's CXX-8-4 catalytic converter for use on rich-burn natural gas engines used in agricultural applications. A popular use for these engines includes water pumping for irrigation.

A pioneer in emissions control technology for stationary engines, Johnson Matthey has revolutionized the 3-way catalytic converter for gas engines. The certified system combines the Johnson Matthey catalytic converter with a Lambda Management System air fuel ratio controller (AFRC) designed by Gas Systems LLC, San Marcos, California.

Black Hawk Services, Johnson Matthey's Southern California distributor coupled the JM converter with the Lambda system and coordinated the testing and paperwork with the SJVUAPCD for the certification.

In this application, JM's technology reduced NOx and CO emissions by 95 percent, exceeding the 80 percent District Rule 4702 standard, and cut VOC emissions by 99 percent, exceeding the rule's standard of 50 percent. Rule 4702 was adopted in January 2007.

The San Joaquin Valley Unified APCD granted certification based on third-party source test results for a 225 bhp Cummins Model G-855 gas engine used for water pumping.

Components of the certified emissions control system include the following:

o Johnson Matthey Bandito NSCR 3-way Catalytic Converter.

o Gas Systems Lambda Management Controller for air and fuel.

o Bosch Model LSU 4.2 oxygen sensor.

The current certification covers engines up to 250Hp, but additional third party testing is underway to expand the certification to include engines rated up to 350Hp.

About Johnson Matthey Stationary Emissions Control Group:

Johnson Matthey SEC group is well known for its total systems approach to solving customer's emissions problems as well as a reputation for strong customer support at the field service level. JM SEC designs and supplies catalysts and engineers catalytic systems to control emissions of nitrogen oxides (NOx), carbon monoxide (CO), hydrocarbons (HC), volatile organic compounds (VOC), hazardous air pollutants (HAPs) and particulate matter (PM). JM SEC is dedicated to the research, development and application of catalyst technology to improve quality of life by reducing air emissions.

About Johnson Matthey:

Traded on the London Stock Exchange (symbol: JMAT), Johnson Matthey is a specialty chemicals company focused on its core skills in catalysts, precious metals, fine chemicals and process technologies. The $15 billion company is 191 years old, employs over 8700 people in 30 countries and has been providing catalytic solutions for air quality problems for more than 30 years. The company is backed by a reputation for superior reliability, design, engineering and manufacturing, technological expertise and customer service.

Contact Information:

For Media:

contact Allen Solovitz, 609-823-1247, perceptmkt@comcast.net.

For more information about Johnson Matthey Stationary Emissions Control (SEC) Group, contact

Wilson Chu, Marketing and New Business Manager, Johnson Matthey, 400 Lapp Road, Malvern, PA 19355, Tel: 484-320-2114, Fax: 484-320-2152, E-mail: chuw@jmusa.com, Website: www.jmsec.com.

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