United Salt Corporation is a salt mining and processing company headquartered in Houston, Texas. Established in 1928, the company produces rock salt, evaporated salt and specialty salt products for industrial, agricultural, food and consumer applications. United Salt operates mines and brine wells in Texas and Louisiana and distributes salt under brands such as Tru-Flo, United Salt and Plain Salt. Its food-grade products include flake salt, fine salt and iodized salt used by food processors and restaurants. The company emphasizes quality control, consistent supply and customer service.