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

Antifriction Bearing Metals, Lead-Base (6)

   Nn Ball & Roller

   Abm Advanced Bearing Materials LLC

   F & C Professional Aluminum

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Base Metal Smelters and Refiners (13)

   Gannon & Scott Inc

   Alumitech Inc

   Dna Electric

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Beryllium Manufacturers (9)

   Brush Wellman Inc

   Goldman Machine Services

   Materion Brush Inc

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Cobalt Refining (Primary) (4)

   Alloy Ball & Seat CO

   Umicore USA Inc

   Umicore Usa Inc

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Gold Refining (Primary) (55)

   Idaho Prospecting Supply

   S A Refinery CO

   HICKSVILLE GOLD BUYERS

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Lead Smelting and Refining (Primary) (5)

   China Direct Industries, Inc

   Mayer Alloys Corp

   Garfield Refining CO

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Lead and Zinc (7)

   Dnsc-Df

   Horsehead Corp

   Envirofocus Technologies, LLC

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Magnesium Refining (Primary) (4)

   Engineering Value LLC

   Magnesium Refining Technologies, Inc

   Us Magnesium LLC

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Platinum Group Metal Refining (Primary) (7)

   Perryman Enterprises, Inc

   Cyclegreen

   Southern Metal Resources

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Precious Metals Smelters and Refiners (248)

   Columbia Precious Metals

   Spindle City Precious Metals

   Precious Metals Inc

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Primary Nonferrous Metals, Nec (114)

   Mg Refiners

   Refiners House

   Manufacturer's Interchange

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Primary Smelting and Refining of Nonferrous Material (13)

   Purosil

   Powersource LLC

   Alcan Primary Metals

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Silicon Manufacturers (10)

   BioEmbedded Research LLC

   Tianjiao International

   Mitsubishi Polycrystalline

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

   Meyer Solar Corporation

   Silicon Processors, Inc

   Astro Molding, Inc

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Silicon and Chromium (5)

   R I Lampus CO

   Rec Silicon Inc

   Dorney Products

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Silicon, Pure (14)

   Rsi Silicon Products LLC

   Sintegra Inc

   Strategic Financial Concepts

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Silver Refining (Primary) (4)

   Umicore Technical Materials

   Oklahoma Industrial Silver Inc

   N T & H Enterprises 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

   Saes Smart Materials Inc

   Hamilton Rti Inc

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

   Horsehead Corp

   Ldl Technology Inc

   Arecibo Diecast, Inc

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