RF Materials Co., Ltd. develops, produces, and sells optical communication packages in Korea and internationally. The company offers packages for RF and microwave, optical communication, and laser module; ceramic packages and substrates and HTCC multilayer ceramics technologies; and laser module, including fiber coupled diode lasers, single bar diode lasers, and diode laser bar stacks. It serves laser modules, automobiles, medical care, and X-rays, and aerospace. The company was formerly known as Metal-Life Co., Ltd. and changed its name to RF Materials Co., Ltd. in March 2021. RF Materials Co., Ltd. was founded in 2004 and is based in Ansan-si, South Korea.