Linde plc Formerly known as Praxair Incorporated. The Group's principal activities are to manufacture and sell atmospheric, process and specialty gases and surface coatings. It is an industrial gas supplier in the North and South America. The Group produces oxygen, nitrogen and argon through several air separation processes. It supplies wear-resistant, high temperature corrosion resistant metallic coatings, ceramic coatings and powders. It designs, engineers and builds equipment that produces industrial gases for internal use and external sale. The customers of the Group are industries that include healthcare, petroleum refining, computer-chip manufacturing, beverage carbonation, fiber-optics, steel making, aerospace, chemicals and water treatment. The Group operates in North America, Europe, South America, Asia, Brazil, France, Germany, Italy, Japan, Singapore, South Korea, Taiwan, Spain, Switzerland and the United Kingdom.