WOORIRO CO., LTD. is engaged in the manufacture and sale of optical splitters. It operates through the following divisions: Optical Splitter, Photodiode, System Integration (SI) Business, and New Business. The Optical Splitter division offers planer lightwave circuit wafers, chips, and modules. The Photodiode division manufactures photodiode chips and modules. The SI Business division offers services in big data analysis and cloud servers. The New Business division engages in the internet of things (IoT) industry. The company was founded on December 29, 1998 and is headquartered in Gwangju, South Korea.