Sinomine Resource Group Co., Ltd. engages in the development and utilization of lithium-ion battery raw materials in China and internationally. The company offers cesium and rubidium chemicals; technical services for Pollucite; battery-grade lithium hydroxide, battery-grade lithium carbonate, and battery-grade lithium fluoride; and geo-technical services. It is also involved in hard rock lithium ore development; lithium concentrates processing; production and sale of lithium compounds; mining property development; and trade of lithium, cesium, chromium, beryllium, tantalum, and other mineral products. The company was formerly known as Sinomine Resource Exploration Co., Ltd. and changed its name to Sinomine Resource Group Co., Ltd. in August 2018. Sinomine Resource Group Co., Ltd. was founded in 1999 and is headquartered in Beijing, China.