EPA certifies Engelhard's CMX(TM) bus catalytic converter: First emissions control technology to meet EPA's bus rebuild standard.

ISELIN, N.J.--(BUSINESS WIRE)--May 31, 1995--Engelhard Corp. announced today that the Environmental Protection Agency (EPA) has certified its integrated catalytic converter-muffler, called CMX(TM), making it the first emissions reduction technology to meet the EPA's 1995 Rebuild Standard. This legislation requires that buses built before 1994 comply with tough new emissions standards, and is impacting 32,000 buses in 49 cities nationwide.

The CMX integrated converter muffler, Engelhard's newest catalytic technology, converts particulate matter into harmless carbon dioxide and water and reduces particulate emissions by at least 25 percent, meeting the legislation's requirements. In addition CMX reduces hydrocarbons by 50 percent and carbon oxides by 30 percent.

"The EPA certification confirms our belief that CMX is the most technologically advanced, cost-efficient emissions system solution for transit authorities, who must meet the EPA standard," said Joseph E. Gonnella, group vice president and general manager of Englehard's Automotive Emission Systems. "Other options available to meet the new standards such as total engine rebuilds or engine replacements are much more expensive and complicated. In addition, those customers already using CMX are more than pleased with its performance."

The city of Phoenix is one of 60 transit authorities currently using the Engelhard technology. With 75 buses already retrofitted with CMX units, Phoenix has plans to install 82 more.

"We did a retrofit of 75 buses with particulate traps but we found that they were not reliable," explained Bill Luffman, automotive engineer. "CMX doesn't `plug up' -- it serves as a continuous catalyst, burning off soot consistently rather than collecting it."

According to Tim Wildman, urban bus sales/distribution manager at Engelhard, there are approximately 2,000 CMX units operating in the field nationally. He expects Engelhard to be at full manufacturing capacity within the next three months.

"CMX is easy to install and offers no associated fuel penalties or maintenance requirements," said Wildman. "We expect market demand to grow outside of EPA's regulated areas, as well as internationally." Engelhard estimates that the potential worldwide market demand for this emissions control package will be nearly $20 million over the next 10 years.

Engelhard is a world-leading supplier of specialty chemical products, engineered materials and precious metals management services.

Editor's Note: Another Engelhard emission control technology, GPX(R) Diesel Coating, is an in-cylinder ceramic coating. When used together, CMX and GPX achieve the EPA's 25 percent particulate emissions reduction requirement, reduce nitrogen oxide by 40 percent nitrogen oxide reduction, and eliminate the presence of visible smoke. Engines initially retrofitted with CMX can also be upgraded with GPX during a scheduled rebuild.

For additional information on the Engelhard CMX integrated catalytic converter-muffler system contact: Engelhard Corp., Automotive Emissions Systems, 101 Wood Ave., Iselin, NJ 08830. Telephone: [phone]. Fax: [phone].

CONTACT: Engelhard Corp., Iselin

Jon B. Lederman, 908/205-6244

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Burson-Marsteller

Bernadette O'Leary, 212/614-4912