Linde Aktiengesellschaft operates as a gases and engineering company worldwide. It operates in two divisions, Gases and Engineering. The Gases division produces and distributes atmospheric gases oxygen, nitrogen, and argon; and hydrogen, acetylene, carbon monoxide, carbon dioxide, shielding gases, noble gases, and high-purity specialty gases for use in industry, commerce, science, and research sectors, as well as develops and distributes procedures and systems for gas applications. This division also offers pharmaceutical and medical gases and services to the healthcare industry; and support services, technical equipment, and safety products, as well as develops hydrogen technology. The Engineering division provides planning, project development, and construction services with a focus on market segments, such as olefin, natural gas, air separation, and hydrogen and synthesis gas plants. This division's plants are used in various fields, including the petrochemical and chemical industries; in refineries and fertilizer plants; to recover air gases; to produce hydrogen and synthesis gases; to treat natural gas; and to produce noble gases. Linde Aktiengesellschaft is headquartered in Munich, Germany. As of October 31, 2018, Linde Aktiengesellschaft operates as a subsidiary of Linde plc.