- Compania Minera de Canelas y Topia
- zinc and lead Concentrate, zinc oxide.
- Address:rolongacion hidalgo, topia, durango/topia, Mexico,34540
- Minera William, S.A. De C.V.
- Lead concentrate, zinc concentrate, pyrite concentrate.
- Address:Jimenez, Torreon, Coahuila, Mexico
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