Matheson Tri-Gas, Inc. produces and supplies industrial and specialty gases, and gas handling equipment in the United States and internationally. The company offers semiconductor, medical, welding, atmospheric and bulk, and cylinder gases for customers using gas in their labs, fabs, plants, and processes. It also designs and manufactures gas purification systems, generators, delivery systems, filters, purifiers, detection equipment, control valves, and management accessories; and gas cylinder enclosures, source manifolds, and panels, as well as helium recovery solutions. In addition, the company provides support, engineering, and systems management services to analytical laboratories and semiconductor manufacturers worldwide. It sells its products directly and online, as well as through a network of distributors. The company has plant, and research and development facilities in North America, Europe, and Asia. It has locations in California, Arizona, New Mexico, Oklahoma, Texas, Louisiana, Mississippi, and Florida. The company was founded as Matheson Gas Products, Inc. in 1926 and changed its name to Matheson Tri-Gas, Inc. in 1999. Matheson Tri-Gas is based in Parsippany, New Jersey. Matheson Tri-Gas, Inc. operates as a subsidiary of Taiyo Nippon Sanso Corporation.