UPDATE 1-Peru's Buenaventura cuts forecast on 2015 silver output after strike By: Reuters: Company News September 23, 2015 at 22:16 PM EDT * Still expects to produce 800,000 ounces of gold this year (Adds estimates for future silver output, 2015 gold production) Read More >> Related Stocks: Compania Mina Buenaventura S.A. ADR