Calgon Carbon Corp. moved its headquarters to the Westpointe Corporate Center Four in Moon Township, Pa. Calgon Carbon will lease 75,566 square feet of the 130,000-square-foot building to house its executive staff, sales, service, and research and development departments. The company also opened its refurbishing facility in North Tonawanda, N.Y. The 12,500-square-foot building houses a dry feed system, screening tower, reactivation furnace, storage tanks and packaging system.