and announced on May 23, 2016 and Airgas is now a wholly owned subsidiary of Air Liquide. In 2019, Airgas signed a definitive agreement to acquire TA Corporate Holdings, Inc. (“Tech Air”), a large independent distributor of industrial gases and welding supplies serving various geographies in the United States. References Air Liquide Industrial gases American companies established in 1982 Chemical companies established in 1982 2015 mergers and acquisitions Companies based in Delaware County, Pennsylvania Companies formerly listed on the New York Stock Exchange Transportation companies of the United States Chemical companies of the United States 1982 establishments in Pennsylvania American subsidiaries of foreign companies Radnor Township, Delaware County, Pennsylvania Transportation companies based in Pennsylvania