Searles Valley Minerals Inc. is a raw materials mining and production company with corporate offices in Overland Park, Kansas. It is owned by the Indian company Nirma.[1][2] It has major operations in the Searles Valley centered in Trona, California where it is the town's largest employer.[3][4] The company produces borax, boric acid, soda ash, salt cake, and salt. It also owns the Trona Railway.[1][5]
The Trona facility extracts and ships 1.75 million tons of chemicals per year.[3]