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JOHNSON MATTHEY TO SUPPLY BULK HYDROGEN PURIFIER TO EpiLEDS IN TAIWAN

WEST CHESTER, PA, November 10, 2006 Johnson Matthey Gas Purification Technology (GPT) group, a global leader in the design, manufacture and distribution of highly reliable bulk and point-of-use purifiers, announced today that they have supplied a GPT-20 hydrogen purifier, capable of flowing 15 Nm3/hr. to EpiLEDS in Tainan, Taiwan. The purifier will be installed in their new fab located at the Tainan Science-Based Industrial Park.

EpiLEDS is a new joint-venture created by two Taiwanese organizations, ProMOS Technologies, a Dynamic Random Access Memory (DRAM) manufacturer and Hermes-Epitek, a manufacturer of chip processing equipment including ion implementation, wafer probe, etching and inspection kits. EpiLEDS will focus on manufacturing unpackaged blue LED chips with pilot production scheduled to start in the first quarter of 2007.

Johnson Matthey's state-of-the-art bulk hydrogen purifiers are capable of providing 99.9999999 percent pure hydrogen for wafer fabrication and they are the technology of choice for epitaxy and zero-gas generators used in the calibration of the most technologically advanced analytical equipment.

About Johnson Matthey Gas Purification Technology:
Backed by a reputation for superior reliability, technological expertise and customer service – and having installed over 5,000 gas purification units around the world – the company is a global leader in the design, engineering, manufacture and distribution of state-of-the-art purification systems for all pure, inert and specialty gases used in the semiconductor industry. The Johnson Matthey GPT group maintains locations in North America, Japan, South Korea, Singapore, Taiwan, China and Hong Kong.

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 and specialty chemicals. The $8.0 billion company is 188 years old, employs almost 7,500 people in 34 countries and has been providing gas purification solutions for more than 40 years.

Contact Information:
For further information, please contact Jeff Lucht, Business Manager, Johnson Matthey Gas Purification Technology, 1397 King Road, West Chester, PA  19380;

Phone: (610) 232-1968 or (800) 624-2204; Fax: (610) 232-1934;
E-mail: luchtjl@jmusa.com; Web site: http://www.pureguard.net