KOREA ADVANCED MATERIALS Co., Ltd. produces and sells optical power splitters and arrayed waveguide gratings for use in high speed and FTTH networks. Its products include planar lightwave circuits (PLC) splitter chips and power splitter modules, mode conversion adapters, arrayed waveguide gratings, variable optical attenuators, optical switches, optical power meters, and optical network eye systems. The company was formerly known as PPI Inc. and changed its name to KOREA ADVANCED MATERIALS Co., Ltd. in October 2024. The company was incorporated in 1999 and is based in Gwangju-si, South Korea.