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By María José Goytia - Fri, 11/04/2022 - 17:24
CFE’s purchase of red coal has increased mining tragedies in Coahuila to produce only 4 percent of the country’s energy.
https://mexicobusiness.news/tag/coal-mines
More Mining
By - Mon, 10/21/2013 - 10:45
“Though I am not an engineer I invented an inflatable refuge chamber, making it easier to move around inside the mine”
