Groups is asking the SEC to determine whether Tahoe failed to meet legal requirements for disclosing human rights abuses and lawsuits related to its Escobal mine in Guatemala.
The Mexico-focused miner has benefitted from an ongoing silver rally and even more so than many of its peers, as it chose not to diversify into other metals.
Iron ore’s resilience in recent months has defied many analysts’ forecasts, as Beijing’s stimulus plans, restocking by Chinese steel mills and historically low port stockpiles have supported prices.
Study shows the most efficient mines in top producer Chile now produce copper for less than $1 a pound after finding an additional 13% in savings this year.