Based in Lockport, New York, Twin Lake Chemical has spent more than 35 years making organic and inorganic chemical intermediates, with a particular focus on acid chlorides and phosphorus pentachloride. Its scientists and engineers develop chlorination processes from bench scale through production, supported by an on-site phosgene facility operated by subsidiary J.H. Products. The company manufactures roughly two million pounds of acid chlorides annually and also provides custom distillation, flaking, and toll-manufacturing services.