Airgas CEO to Present at William Blair Growth Stock Conference

RADNOR, Pa.

Airgas, Inc. (NYSE: ARG) today announced that President and Chief Executive Officer Michael L. Molinini will present at the William Blair 35^th Annual Growth Stock Conference in Chicago, IL, on Wednesday, June 10, at 2:00 p.m. CT (3:00 p.m. ET). Interested parties may listen to a live webcast or replay until July 9 by accessing http://investor.shareholder.com/arg/events.cfm. Presentation slides will be available for download by 8:00 a.m. ET on June 10 in the Investor Information section of the Company’s website at http://investor.shareholder.com/arg/slides.cfm.

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. Approximately 17,000 associates work in more than 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 e-Business, 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.

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Airgas, Inc.
Investor Contact:
Joseph Marczely, 610-263-8277
joseph.marczely@airgas.com
or
Media Contact:
Sarah Boxler, 610-263-8260
sarah.boxler@airgas.com