Air Products and Chemicals, Inc. serves technology, energy, industrial and healthcare customers globally with a portfolio of products, services and solutions that include atmospheric gases, process and specialty gases, performance materials, equipment and services. The Company is a supplier of hydrogen and helium, and has built positions in markets, such as semiconductor materials, refinery hydrogen, natural gas liquefaction and advanced coatings and adhesives. It operates in four segments: merchant gases, tonnage gases, electronic and performance materials, and equipment and energy. In May 2009, the Company sold its United States home infusion therapy services business and some elements of its respiratory and home medical equipment business to OptionCare Enterprises, Inc. In May 2009, it sold three of its United States healthcare businesses to Landauer-Metropolitan, Inc. The three healthcare businesses include Genox Homecare, Mid-Atlantic Healthcare and Young’s Medical Equipment.