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Primary Smelting and Refining of Nonferrous Metals, Except Copper and Aluminum (545)

Antifriction Bearing Metals, Lead-Base (6)

   F & C Professional Aluminum

   Reynolds Machine Co

   Abm Advanced Bearing Materials LLC

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Base Metal Smelters and Refiners (13)

   Lyondell-Citgo Refining Lp

   Global Tungsten & Powders Corp.

   Allied Metals

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Beryllium Manufacturers (9)

   Copper Beryllium Alloys

   Brush Wellman Inc

   Jenny Liu

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Cobalt Refining (Primary) (4)

   Umicore Usa Inc

   Umicore Usa Inc

   Umicore USA Inc

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Gold Refining (Primary) (55)

   Richard Allen Jewelers

   Idaho Prospecting Supply

   Gold Buyers of America

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Lead Smelting and Refining (Primary) (5)

   Mayer Alloys Corp

   Garfield Refining CO

   China Direct Industries, Inc

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Lead and Zinc (7)

   Us Zinc Inc

   Horsehead Corp

   Envirofocus Technologies, LLC

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Magnesium Refining (Primary) (4)

   Engineering Value LLC

   Us Magnesium LLC

   Magretech Inc

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Platinum Group Metal Refining (Primary) (7)

   T M P Refining Corporation

   J-A Industries Inc

   Southern Metal Resources

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Precious Metals Smelters and Refiners (248)

   Zodiac Enterprises, LLC

   Precious & Metals International

   Ocm Industries Corp

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Primary Nonferrous Metals, Nec (114)

   Alloyworks, LLC

   Stratcor Inc

   House The Refiners

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Primary Smelting and Refining of Nonferrous Material (13)

   Stratcor Inc

   Mobile Engineering Group

   Alcan Primary Metals

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Silicon Manufacturers (10)

   Mitsubishi Polycrystalline

   Limtech Inc

   G E Silicones

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Silicon Refining (Primary, Over 99% Pure) (9)

   Globe Metallurgical Inc

   Virginia Semiconductor Inc

   Globe Specialty Metals, Inc

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Silicon and Chromium (5)

   Rec Silicon Inc

   Dorney Products

   Rec Advanced Silicon Materials

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Silicon, Pure (14)

   N & C Solar Company

   Silicon Chemical Corporation

   Sinaf Products, Inc

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Silver Refining (Primary) (4)

   Silver Valley Mining Assn

   Umicore Technical Materials

   Oklahoma Industrial Silver Inc

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Tantalum Refining (6)

   H C Starck Inc

   Premier Alloy

   H C Starck Inc

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Titanium Metal, Sponge and Granules (5)

   Timet

   Advanced Materials Products, Inc

   Hamilton Rti Inc

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Zinc Refining (Primary), Including Slabs & Dust (7)

   Mitsui Zinc Powder LLC

   Arecibo Diecast, Inc

   Ldl Technology Inc

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