NEWS RELEASE 

AMI METALS, INC. OPENS A FACILITY IN THE UNITED KINGDOM Los Angeles, CA – July 9, 2012 – AMI Metals, Inc., headquartered in Brentwood, Tennessee and a wholly-owned subsidiary of Reliance Steel & Aluminum Co. (NYSE:RS), announced today the opening of a new facility in Milton Keynes, United Kingdom. AMI Metals UK Limited, a subsidiary of AMI Metals, Inc. will serve the global aerospace industry. The fully functional, modern facility will offer the entire portfolio of AMI products including aerospace raw materials, sheet, plate, and extruded products, along with value added services including cut to size, cut to shape, billet prep, and milling through AMI’s award winning service for supply chain management and demand aggregation.

“We are very excited to add our Milton Keynes facility to the AMI family. AMI has a strong and dedicated commitment to customer service and is proud to continue our growth with strategic products and additional value added services as well as expansion into new geographic and customer markets. In addition to enhancing our existing product offerings into the UK market, our presence in the UK allows AMI to offer unparalleled service to this market with same day deliveries supported by world-class local representation.” said Scott Smith President of AMI Metals, Inc.

Reliance Steel & Aluminum Co., headquartered in Los Angeles, California, is the largest metals service center company in North America. Through a network of more than 220 locations in 38 states and Belgium, Canada, China, Malaysia, Mexico, Singapore, South Korea, the U.A.E. and the United Kingdom, the Company provides value-added metals processing services and distributes a full line of over 100,000 metal products to more than 125,000 customers in a broad range of industries.

Reliance Steel & Aluminum Co.’s press releases and additional information are available on the Company’s web site at www.rsac.com. The Company was named to the 2012 “Fortune 500” List and the 2012 Fortune List of “The World’s Most Admired Companies.”  

This release may contain forward-looking statements. Actual results and events may differ materially as a result of a variety of factors, many of which are outside of Reliance Steel & Aluminum Co.’s control. Risk factors and additional information are included in Reliance Steel & Aluminum Co.’s reports on file with the Securities and Exchange Commission, including Reliance Steel & Aluminum Co.’s Annual Report on Form 10-K for the year ended December 31, 2011 and Quarterly Report on Form 10-Q for the quarter ended March 31, 2012.