Selected to Supply Two Model PSH-60 Hydrogen Purifiers to Tekcore, Co.

WEST CHESTER, PA, December 10, 2007 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 two Model PSH-60 hydrogen purifiers, capable of hydrogen flows of 60 Nm3/hr to Tekcore Co, LTD. in Nantou, Taiwan. Johnson Matthey has now supplied Tekcore with five bulk hydrogen purifiers. The sale was obtained by JM's Taiwanese sales and service agent Pionics Technology Corp.

Tekcore, is a leading Asian manufacturer of high brightness LED wafers and chips, their state-of-the-art facility includes High Throughput MOCVD tools, which enable them to cater to this demand. These new hydrogen purifiers, along with the other JM hydrogen purifiers already in place, will supply ultrapure hydrogen to the growing number of MOCVD reactors at this site.

Johnson Matthey's state-of-the-art PSH Series bulk hydrogen purifiers are capable of
providing 99.9999999 percent pure hydrogen for wafer fabrication and they are the
technology of choice for Taiwan's silicon and compound semiconductor industry.

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 gases used in the semiconductor industry. The Johnson Matthey GPT group maintains facilities in North America, France, 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 $9.3 billion company is 190 years old, employs over 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