Aprogen, Inc. engages in the manufacture, maintenance, and repair of heavy and chemical plant facilities. It operates through the following business divisions: Hardfacing, Metal, Nukon System, Manufactured Pharmaceuticals, Merchandised Pharmaceuticals, and Others. The Hardfacing business division welds and develops surface of machine parts into corrosion, heat, shock resistant. The Nukon System business division provides nuclear power plants and special thermostat systems. The Others business division offers steel and others. The company was founded on November 15, 1971 and is headquartered in Seongnam-si, South Korea.