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(2012). Construction of an underground workshop at the Pinos Altos mine in the Municipality of Ocampo, Chihuahua, for Agnico Eagle.
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Construction of core warehouse in Minera Peñasquito in Mazapil, Zacatecas
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Foundation works for zinc filter building of the Larox filter project in Bismark mining unit of Ascensión, Chih., For miner Bismark S.A. Of C.V.
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Thickener civil works for the project Water recovery in Bismark mining unit in Asencio, Chih., For mining company Bismark S.A. Of C.V.
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(1981). Regional plant 03 for Mining Development Commission, and bridge with metal structure on Ocampo River, Ocampo, Chih.