Industrial grade lithium carbonate and battery grade lithium carbonate. Qinghai Salt Lake Industry Co., Ltd. is a provincial large listed state-owned enterprise managed by the Qinghai State-owned Assets Supervision and Administration Commission. Salt Lake shares have industrial grade lithium carbonate and battery grade lithium carbonate. Lithium ore refers to naturally occurring lithium resources that can be economically exploited, and more than 150 types of lithium minerals and lithium-bearing ores have been found in nature.