Grinm Advanced Materials Co., Ltd. engages in the research and development, manufacture, and sale of advanced materials. Its main products include thin film materials for microelectronics and optoelectronics, ultra-high purity metals and rare precious metal materials, high-end rare earth functional materials, infrared optics and optical fiber materials, and biomedical materials. The company was founded on March 12, 1999 and is headquartered in Beijing, China.