KOYJ CO., LTD. is a Korea-based company engaged in the liquid crystal display (LCD) black light unit (BLU) industry. The Company operates in two businesses: coating business, which manufactures optical functional films, hard coating films, optical protection films, adhesive protection films and cushion sheets, and optical business, which manufactures light guide plates (LGPs). The Company distributes its products with domestic market and to overseas markets. The Company has two China based wholly owned subsidiaries.