SY Co., Ltd. engages in the manufacture and sale of assembly sandwich panels. It operates through following divisions: External Panel System, Chemical, Aluminum Composite Panel, Machinery & Equipment, Construction Operation, Design Operation, Polyurethane, Colored Steel Plate, SY Housing, H Shape Steel, Deck Plate, and Fitting. The company was founded on September 29, 2000 and is headquartered at Suwon-si, South Korea.