Airgas, Inc. Celebrates 25 Years of Trading

Airgas, Inc. (NYSE-Listed ARG) visits the NYSE to celebrate 25 years of listing. Since its initial public offering in December 1986, Airgas stock has delivered a compound annual return of 18% to its shareholders, twice that of the S&P 500 and outperforming 97% of the S&P 500 constituents during that time. In honor of the occasion, Chairman and CEO of Airgas, Peter McCausland rings The Closing BellSM.

 Watch a live webcast of The Closing Bell at 3:59 p.m. ET on December 14, 2011. The archive will be available shortly after the event.

About Airgas, Inc.

Airgas, Inc. (NYSE: ARG), through its subsidiaries, is the largest U.S. distributor of industrial, medical and specialty gases, and hardgoods, such as welding equipment and supplies. Airgas is also one of the largest U.S. distributors of safety products, the largest U.S. producer of nitrous oxide and dry ice, the largest liquid carbon dioxide producer in the Southeast, and a leading distributor of process chemicals, refrigerants, and ammonia products. More than 14,000 employees work in approximately 1,100 locations, including branches, retail stores, gas fill plants, specialty gas labs, production facilities and distribution centers. Airgas also distributes 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.