February 1, 2012 — Airgas Reports Strong Fiscal 2012 Third Quarter Earnings
o Adjusted diluted EPS of $0.97, up 21% over prior year o Same - store sales up 9% over prior year o Return on capital of 12.3%, up 100 basis points over prior year o Full - year adjusted diluted EPS guidance updated to $4.03 to $4.07 from $3.97 to $4.07

January 23, 2012 — Airgas Names Jay Worley Vice President - Strategic Pricing
RADNOR, PA - January 18, 2012 - Airgas, Inc. (NYSE: ARG) today announced that R. Jay Worley has been named Vice President - Strategic Pricing, reporting to Andy Cichocki, Airgas Senior Vice President - Distribution Operations & Business Process Improvement. Worley brings nearly 20 years of industry experience to a new role in which he will be leading a Strategic Pricing organization responsible for developing and implementing pricing practices that are consistent with the Company's overall...

January 13, 2012 — Airgas' Red-D-Arc Welderentals Becomes Global Distributor for Key Plant Automation Products
Key Plant weld-positioning and automation products to be marketed world-wide

January 9, 2012 — Airgas Announces Third Quarter Earnings Release Schedule
RADNOR, PA - January 4, 2012 - Airgas, Inc. (NYSE: ARG) will release its fiscal 2012 third quarter earnings before the market opens on Thursday, January 26, 2012, and will host a teleconference at 10:00 a.m. ET that same day. The presentation materials will also be available before the market opens on January 26 on the Internet at http://investor.shareholder.com/arg/slides.cfm. A webcast of the teleconference will be available live and on demand through February 24 at...

November 2, 2011 — Airgas Reports Record Earnings in Fiscal Second Quarter 2012; Raises Full-Year Guidance
o Record adjusted diluted EPS* of $1.03, excluding a $0.02 special charge, up 24% over prior year o Same-store sales up 10% over prior year o Return on capital* of 12.3%, up 140 basis points over prior year o Full-year adjusted diluted EPS* guidance raised to $3.97 to $4.07 from $3.90 to $4.05

June 6, 2011 — Airgas Issues $250 Million of 2.95% Senior Notes Due 2016
RADNOR, PA - May 31, 2011 -- Airgas, Inc. (NYSE: ARG) announced today it has priced $250 million of 2.95% senior notes due June 15, 2016. The notes are being offered under a shelf registration statement filed with the U.S. Securities and Exchange Commission.

May 31, 2011 — Airgas Announces New Division Operating Structure; Appoints Division Leadership
RADNOR, PA - May 25, 2011 - Airgas, Inc. (NYSE: ARG), today announced the alignment of its 12 Regional Companies into four new divisions, each led by a Division President whose direct reports include a Division Chief Financial Officer, Division Vice President of Human Resources, and Regional Company Presidents. The four new divisions, identified as North, South, Central, and West, form an operating structure that will help Airgas leverage the full benefits of its new customized SAP information...

May 12, 2011 — Airgas Acquires Pain Enterprises, Inc., Based in Bloomington, Indiana
RADNOR, PA - May 9, 2011 -- Airgas, Inc. (NYSE: ARG) today announced it has completed the acquisition of Pain Enterprises, Inc. ("Pain"), a producer and distributor of dry ice and carbon dioxide throughout the Midwestern U.S. The Bloomington, IN-based business serves a wide range of customers, including the food and beverage industry, hospitals, and industrial and chemical manufacturers. With 20 locations and more than 140 employees, Pain generated annual revenues of about $33 million in 2010.

May 9, 2011 — Airgas Reports Fiscal Fourth Quarter and Full Year 2011 Earnings
o Record fourth quarter adjusted diluted EPS* of $0.88, which includes $0.04 of SAP costs and excludes $0.14 of special items, up 28% over prior year o Fourth quarter same-store sales up 11% over prior year o Record full-year adjusted diluted EPS* of $3.34, which includes $0.14 of SAP costs and excludes $0.41 of special items, up 25% over prior year o Full-year free cash flow* of $387 million; adjusted cash from operations* of $617 million o Fiscal year 2012 adjusted diluted EPS* guidance of...

March 7, 2011 — Airgas Signs Three-Year Supply Contract with TDIndustries
Will Supply Industrial Gases, Welding and Safety Products, Plus Products and Services from Airgas' Oilind Safety and Red-D-Arc Companies