Cosmo Advanced Materials & Technology Co., Ltd. supplies secondary battery cathode active materials in South Korea and internationally. It manufactures high-Ni cathode active materials for electric vehicles and energy storage systems, including lithium cobalt oxide, as well as materials used in secondary batteries for IT devices such as smartphones, tablet PCs, and laptops. The company also provides MLCC release films, semiconductor-related products, and toner for black and color printers and copiers. Formerly known as Seahan Media Co., Ltd., it changed its name to Cosmo Advanced Materials & Technology Co., Ltd. in March 2011, was founded in 1967, and is headquartered in Chungju-si, South Korea.