Identification Number and Certification

W9 - Lhoist North America, Inc

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W9 - Acid Gas Solution, LLC

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W9 - Chemical Management Co, Inc

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W9 - H.C. Spinks Clay Company, Inc

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W9 - Lhoist North America of Arizona, Inc

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W9 - Lhoist North America of Missouri, Inc

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W9 - Lhoist North America of Tennessee, LLC

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W9 - Lhoist North America of Texas, LLC

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W9 - Lhoist North America of Virginia, Inc

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