WOORIRO CO., LTD, formerly WOORIRO OPTICAL TELECOM CO.,LTD is a Korea-based company engaged in the manufacture of optical components for communication industry. The Company mainly manufactures planar lightwave circuit (PLC) splitters, PLC chips and PCL modules, as well as optical distribution units, such as rack mounts, the terminal boxes equipped with walls, terminal boxes and components and others. It also provides photodiode (PD) products, such as tap-PD modules. Its products are applied to cable television (CATV) network systems, passive optical network (PON) system fiber, optical equipment systems and other communication equipment. The Company distributes its products within domestic market and to overseas markets.