Airgas, Inc. (NYSE: ARG), the largest U.S. supplier of industrial, medical, and specialty gases, and related products, today announced that it has acquired the assets and operations of four businesses that complement the Airgas portfolio of products and services. Combined annual revenues for the four acquired businesses are approximately $20 million. Financial terms of the transactions were not disclosed. U.S. Welding & Safety Supply Co., with operations in Miami, FL, specializes in the distribution of welding equipment and welding-related hardgoods, such as consumables. U.S. Welding joined Airgas USA, LLC’s South region effective December 3rd. Industrial gas and welding supply distributors Rebel Welding & Industrial Supply, Inc., with operations in Vicksburg, MS, and Tallulah, LA, and Sadler Welding Products, LLC, with operations in Dothan, Eufaula, and Troy, AL, and Panama City, FL, joined Airgas USA, LLC’s South region effective December 3 rd and December 17 th, respectively. Rochester Welding Supply Corp., an industrial gas and welding supply distributor with operations in Rochester and Manchester, NY, joined Airgas USA, LLC’s Northeast region effective December 17th. “Each of these businesses has a history of outstanding customer service and enhances Airgas’ position in its respective area,” said Les Graff, Airgas Senior Vice President – Corporate Development. “We welcome all of our new associates to the Airgas family and look forward to providing our new customers with the most complete offering of products, services, and expertise in the industry.” Since the beginning of its fiscal year, Airgas has acquired 12 businesses with aggregate annual revenues of approximately $39 million. About Airgas, Inc. Airgas, Inc. (NYSE: ARG), through its subsidiaries, is one of the nation's leading suppliers of industrial, medical and specialty gases, and hardgoods, such as welding equipment and related products. Airgas is a leading U.S. producer of atmospheric gases with 16 air separation plants, a leading producer of carbon dioxide, dry ice, and nitrous oxide, one of the largest U.S. suppliers of safety products, and a leading U.S. supplier of refrigerants, ammonia products, and process chemicals. More than 15,000 employees work in approximately 1,100 locations, including branches, retail stores, gas fill plants, specialty gas labs, production facilities and distribution centers. Airgas also markets its products and services through eBusiness, catalog and telesales channels. Its national scale and strong local presence offer a competitive edge to its diversified customer base. For more information, please visit www.airgas.com.