million ounces annually for 22 years (begins early production in 2010–2011). In 2013 Penasquito produced 6.216 million ounces for Silver Wheaton (down from 6.572m in 2012, 5.284m in 2011) at a cost of $4.02 per ounce (up from $3.99, $3.93). Like over half of the world's silver producing mines, the Penasquito mine also produces lead, copper and zinc. In 2013 company production totaled 35.823 million ounces (26.754 million of that pure silver +0%, the rest being gold) 22.0% higher than 2012, 41.2% more than 2011, +110% vs 2009. In 2013 it sold 29.963 million ounces of silver equivalent (+9.6%) at an average price per ounce of $23.58 ($31.09 in 2012, $34.65 in 2011). In 2013 the unit price paid for pure silver was up six cents to $4.12 (incl gold $4.65) while the realized price was down 717 cents to $23.86 (incl gold $23.58). In 2011 though the unit price paid per silver equivalent ounce was only five cents higher at $4.09 it sold each ounce for 67.6% more, in 2010 it was 36.6% more. Total revenue was down 17% in 2013, up 16% in 2012, up 72% in 2011. Mines The silver it has agreed to purchase is in Mexico (40%), Portugal (20%), USA (10%), Chile (9%), Peru (9%), Argentina (7%), Sweden (4%), Greece and Canada (about 1%). Silver Wheaton doesn't own or operate the mines but the contracts it has with their owners gives it full access to any silver (gold at the Minto Mine) mined there. The six mines from which the company gets most of its silver are : San Dimas, Penasquito, Barrick (made up of five parts), Yauliyacu, Zinkgruvan, Cozamin and Minto. In addition there are six other smaller mines that contribute about 22% of the total. The San Dimas mine was sold by Goldcorp in the summer of 2010 to Mala Noche Resources Corp. (later renamed Primero Mining) for half a billion dollars complicating things for Silver Wheaton which had already made an agreement with Goldcorp for the silver. In response Silver Wheaton agreed to a new contract agreement. The Penasquito mine which began producing in September 2010 (and has a mine life of 22 years) is Mexico's largest open pit mine. The agreement it has with Barrick Gold involves the silver produced at 4 mines; Pascua Lama, Lagunas Norte (Peru), Pierina (Peru) and Veladero (Argentina). The deal involving the Lagunas Norte, Pierina and