Mcewen Inc's Business Segments

We are a mining and minerals production and exploration company focused on precious and base metals in Argentina, Mexico and the United States. On January 24, 2012, we changed our name from US Gold Corporation to McEwen Mining Inc. after the completion of the acquisition of Minera Andes Inc. (“Minera Andes”) by way of a statutory plan of arrangement under the laws of the Province of Alberta, Canada.

The end product at our gold and silver operations is either in the form of doré or concentrate. Production from the El Gallo 1 mine primarily consists of approximately 98% doré and 2% attributed to slag and fine carbon. Doré is an alloy consisting primarily of gold and silver but also containing other impurity metals. Doré is sent to refiners to produce bullion that meets the required market standard of 99.95% gold and 99.9% silver. Under the terms of our refining agreements, the doré bars are refined for a fee, and our share of the refined gold and silver is credited to our account with the refinery. Ore concentrate, or simply concentrate, is raw ore that has been ground finely to a powdery product from which gangue (waste) is removed, thus concentrating the metal component. Slag and fine carbon are by-products of the gold production process left over after gold and silver have been separated which are sent to smelters for further recovery of metals. Production from the San José mine generally consists of approximately 48% doré and 52% concentrate. Concentrates from the San José mine are shipped to third-party smelters and refineries for further processing to produce useful metals.

Gold and silver doré produced from the San José mine is sold at the prevailing spot market price based on the London A.M. fix, while concentrates are sold at the prevailing spot market price based on either the London P.M. fix or the average of the London A.M. and London P.M fix depending on the sales contract. Concentrates are provisionally priced, whereby the selling price is subject to final adjustments at the end of a period ranging from 30 to 90 days after delivery to the customer. The final price is based on the market price at the relevant quotation point stipulated in the contract. Due to the time elapsed between shipment and the final settlement with the buyer, MSC must estimate the prices at which sales of metals will be settled. At the end of each financial reporting period, previously recorded provisional sales are adjusted to estimated settlement metals prices based on relevant forward market prices until final settlement with the buyer.