First published by Money Metals here: https://www.moneymetals.com/news/2017/04/19/peru-silver-production-decline-001050

Peru is the second largest silver producer in the world, right behind Mexico. As the global markets finally succumb to the massive amount of debt, economic activity is going to plummet. This will have a negative impact on most energy, metals and commodity prices. Thus, production of base metals will decline significantly.