Established in 1964 , Leeden NOX is a full-fledged gas manufacturer and packaged gas provider , welding filler metals and equipment provider and a safety solution specialist . With these capabilities all integrated into one , we are able to deliver a unique value proposition for our end users . The company is a member of Taiyo Nippon Sanso Corporation , a leading global industrial gas manufacturer and the largest industrial gas producer in Japan .

With its regional presence , together with its sister companies Matheson Tri-Gas in the United States of America and Nippon Gases Europe , Leeden NOX is able to support its partners in their global operations .