PGM prices plunge after data show country's mines responsible for 70% of global production are humming and local currency revenues are hitting records.
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.
Study shows frenzied institutional and retail demand for gold ETFs topping 2009 inflows when safe haven investors were in the throws of the financial crisis.