BASKING RIDGE, N.J. & BELLVILLE, Texas--(BUSINESS WIRE)--Matheson Tri-Gas, Inc. (“MTG”), a global manufacturer and supplier of industrial, medical, electronics and specialty gases and welding supplies headquartered in Basking Ridge, New Jersey, announced today it has completed the acquisition of Western International Gas and Cylinders, Inc. (“Western”) a Texas-based manufacturer and wholesale supplier of acetylene, propylene, high pressure gases, cylinders, valves and related services. MTG is the largest subsidiary of Taiyo Nippon Sanso Corporation (“TNSC”), which is one of the top five global producers of industrial, medical, electronics and specialty gases and is headquartered in Japan.