Advancing the face of mining

In 2013, Mining Magazine ran an article on an innovative new mining technique – Double Post Mining (DPM) – that was undergoing tests. Following completion, we caught up with Charles Gryba, inventor of the technique

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Test mining in progress at Madero

I understand the Madero trial went well?

Yes. In 2011, we entered into an agreement with Peñoles to test the DPM method at the Madero mine in Zacatecas, Mexico.