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Primary Smelting and Refining of Nonferrous Metals, Except Copper and Aluminum

Base Metal Smelters and Refiners

   Associated Metals Group LLC

   Global Tungsten & Powders Corp.

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Beryllium Manufacturers

   Materion Brush Inc

   Brush Wellman Inc

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Lead Smelting and Refining (Primary)

   Garfield Refining CO

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Lead and Zinc

   Us Zinc Inc

   Horsehead Corp

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Platinum Group Metal Refining (Primary)

   Tmp Refining Inc

   T M P Refining Corporation

   Perryman Enterprises, Inc

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Precious Metals Smelters and Refiners

   10 West Precious Metals

   Faden's Precious Metals

   Abington Metals Refinery & Mfg

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Primary Nonferrous Metals, Nec

   Nathan Trotter & Co Inc

   Titanium Hearth Technologies, Inc

   H Kramer & CO

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Silicon and Chromium

   Dorney Products

   R I Lampus CO

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Silicon, Pure

   Ae Polysilicon Corporation

   Ae Polysilicon Corporation

   Rsi Silicon Products LLC

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Titanium Metal, Sponge and Granules

   Timet

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Zinc Refining (Primary), Including Slabs & Dust

   Mitsui Zinc Powder LLC

   Patriot Metal Products Inc

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