Australia's Taurus raised $683m to invest in mining company debt last year, while two funds currently in the market are targeting investor capital of $800m.
The program calls for 10,000 meters of core drilling designed to expand by as much as 800 meters the block cave shapes that confine the current resource estimate
Strong performance also came on the back of strategic initiatives, such as non-core asset sales, aggressive cost control measures and a disciplined approach in reducing debt.
The 60-day decree affects 11 districts in the Madre de Dios region, where several studies have found high levels of the toxic element in people, rivers and fish.