As previously reported on 08/28/2014 on our website, a leak in early August, at the Buena Vista Copper mine in Cananea Sonora, operated by the mining company Grupo Mexico, led to the pollution of two rivers. The Mexican Water Commission found exceedances for arsenic and other metals such as sulfuric acid.

The Environment Agency, Profepa, has now ordered the partial closure of the Buena Vista copper mine, after Grupo Mexico was found to be engaging in “highly risky” activities and failing to abide by the relevant rules.   ... →