Calgon Carbon To Supply Wastewater Treatment To Huntsman Plant In China

Pittsburgh-based Calgon Carbon Corp., a supplier of water and air treatment systems, has received a
wastewater treatment contract from Huntsman Textile Effects (Qingdao) Co. Ltd. — a China-based
subsidiary of Huntsman Special Effects, Switzerland — to provide activated carbon adsorption
vessels and reactivation services valued at more than US$1.5 million.

Huntsman (Qingdao) has installed three Calgon Carbon carbon adsorption vessels for wastewater
treatment at the plant, which blends, standardizes and dries textile dyes; and formulates and
distributes textile chemicals. The vessels contain 60,000 pounds of activated carbon, and Calgon
Carbon will remove, transport and reactivate expended carbon; and supply replacement carbon for the

“We are very pleased that Huntsman has chosen Calgon Carbon to provide wastewater treatment
at its facility in Qingdao,” said John Stanik, chairman and CEO, Calgon Carbon. “We are committed
to provide products and services to both Chinese and multinational companies to make air and water
safer and cleaner in China.”

January 22, 2008