Alcoa Inc., Pittsburgh, Pa., and Dooray Air Metal Co. Ltd. in South Korea signed a definitive asset purchase agreement for Alcoa to acquire Dooray's aluminum extrusion assets located in Changwon, Korea. The two companies signed a memorandum of understanding earlier this year for Alcoa to acquire the Dooray assets. The Changwon facility produces hard alloy extrusions, rod and bar, extruded shape and tubing for use primarily in industrial, transportation, defense and aerospace applications.