U.S. Silica competitors

Barbara R Smith works at Gerdau and a VP, CFO at Gerdau; Chief Operating Officer at COMMERCIAL METALS CO; and Chairman/President/CEO at COMMERCIAL METALS CO and is based in Dallas, Texas. She has worked as VP/CFO/Secretary at Gerdau Ameristeel Corp; SVP, CFO at COMMERCIAL METALS CO; and Chairman at NORTEK INC. Barbara studied at Purdue University between 1977 and 1981.

Tamara has been President and Chief Executive Officer and a member of Schnitzer’s Board of Directors since December 2008. She joined the Company in September 2005 as Vice President and Chief Strategy Officer and subsequently held roles of increasing responsibility, including Executive Vice President and Chief Operating Officer. Prior to joining Schnitzer, Ms. Lundgren was an investment banker and lawyer with 25 years of experience in the U.S. and Europe. She was a Managing Director in the Investment Banking Division of JPMorgan Chase, which she joined in 2001, and Deutsche Bank, which she joined in 1996. Earlier she was a partner in the Washington, DC law firm of Hogan Lovells (then Hogan & Hartson, LLP). Ms. Lundgren serves on the Boards of Directors of the Federal Reserve Bank of San Francisco, Ryder System, Inc., and the US Chamber of Commerce. She is also a member of the President’s Advisory Committee on Trade Policy and Negotiation, the Canada-US Council for the Advancement of Women Entrepreneurs and Business Leaders, and the Business Roundtable. Ms. Lundgren earned a B.A. degree from Wellesley College and a J.D. degree from the Northwestern University School of Law.

Tristin White are a President/CEO/CFO/Secretary at GLOBAL INDUSTRIES. and Board Member at GLOBAL INDUSTRIES.. They have worked as President at TW Investment Holdings. Tristin attended Sor-Trondelag University College.

William 'Bill' Ayers is a President and Chief Operating Officer at Mississippi Lime Co and is based in St. Louis, Missouri. He has worked as VP:Operations at Mississippi Lime Co, OEM Sales and Marketing at Duracell, and General Manager - Retail Sales and Marketing at IMC Salt. William attended University of Virginia Darden School of Business and Virginia Tech between 1977 and 1983.

Jerry Pyatt is a President/CEO at The Doe Run Company. He has worked as VP/COO at The Doe Run Company.

Pat Hanish is a Chief Executive Officer at Southwest Products and is based in United States.

Alessandro Dazza is a Chief Executive Officer at Imerys and General Manager at Abrasives business. He has worked as VP:High Resistance Minerals at Imerys, President at Treibacher Schleifmittel Spa E, and VP:Refractory Minerals at Imerys. Alessandro studied at Politecnico di Milano.