August 30, 2004 – Pall Corp. and Matheson Tri-Gas Inc., a member of Nippon Sanso Corp., have entered into a strategic alliance to jointly develop, manufacture, and sell gas purifiers to the semiconductor industry.

The alliance builds on a long-standing relationship between Pall and Matheson and leverages each company’s strengths in gas purification. Both companies will have exclusive access to the others’ purification media to improve semiconductor manufacturing by eliminating particulate and molecular contaminants, including oxygen, moisture and hydrocarbons from process gases. The two companies will also combine their complementary strengths in the development of new technologies.

William J. Kroll, chairman, CEO and president of Matheson Tri-Gas Inc. said, “Our new business relationship will afford both Matheson and Pall improved efficiencies in our purification product offerings, resulting in better overall products for the market.”

The two companies have been working together since 1997, when Pall began distributing Matheson’s NANOCHEM point-of-use gas purification systems.