The company, formerly known as Youyan Semiconductor Materials Co., Ltd., is a limited company exclusively initiated by the Beijing Nonferrous Metals Research Institute through fundraising. It was established in March 1999 and listed on the Shanghai Stock Exchange. The company's main business is positioned in various strategic new materials fields such as high-purity metal targets, advanced rare earth materials, special infrared optics and optoelectronic materials, and biomedical materials with great potential for development. The company's main products include: thin film materials for integrated circuits, precious metals, rare earth metals, magnetic materials, magnets, special infrared optics, light emitting materials, biomedical materials, dental medical devices, etc. Corporate honors: National Intellectual Property Demonstration Enterprise, Top Ten Semiconductor Materials Enterprises, Pilot Intellectual Property Application Enterprise for Industrial Enterprises, Beijing Enterprise Technology Center, etc.