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Calgon Carbon Expects UV Product Sales to Continue to Grow

PITTSBURGH, PA — October 8, 1999 — Calgon Carbon Corporation today announced that the Federal Court of Canada denied a preliminary injunction filed by Trojan Technologies Inc. which sought to enjoin Calgon Carbon Corporation and Calgon Carbon Canada from making, using or selling its Aurora UV system in Canada. The Court stated that "it was not persuaded that the plaintiff (Trojan) has met the burden of establishing it will suffer irreparable harm."

In response to Trojan's request for summary judgment for infringement of its Canadian patent, the Court did not find infringement of the Canadian patent claims by the Aurora UV System as a whole. The Court stated that it agreed with Calgon Carbon's position "that there is no agreement among the experts with respect to the proper construction or interpretation" of certain phrases which were essential to a finding of infringement by the Aurora UV System. Only one component of the Aurora UV System was found to infringe the Trojan patent and this decision is being appealed.

Calgon Carbon Corporation stated that the Canadian court decision has no effect on its ability to sell, manufacture, or deliver the Aurora UV System to its U.S. customers. The Company additionally noted that it believes that the Canadian court decision confirms its antitrust suit against Trojan Technologies in the United States and Calgon Carbon intends to vigorously pursue such action.

Calgon Carbon Corporation, headquartered in Pittsburgh, Pennsylvania, is a global leader in the production, supply, and design of products, services, and technologies for making air and water cleaner and safer. The company employs 1,100 people with 11 facilities in six countries and 12 sales offices serving customers worldwide.

Contact: Gail Gerono, Director of Investor Relations and Corporate Communications, (412) 787-6795; gerono@calgoncarbon.com







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