Cozamin (Mexico)

Project Overview

Capstone Mining Corp. (“Capstone”) owns the high-grade underground Cozamin copper-silver-lead-zinc mine (“Cozamin”) located in the mineral-rich state of Zacatecas, Mexico. Since its commissioning in 2006, the mine has undergone two successful expansions, tripling production levels to the current rate of 3,100 tonnes per day. Exploration success has led to significant resource increases and excellent potential exists to continue this expansion.

Cozamin is an underground mine with a conventional crushing, grinding and flotation surface mill facility. The underground area of the mine is accessed by either a shaft from the surface or one of two ramps. The mill produces copper, zinc and lead concentrates that are shipped to the port of Manzanillo for export to world markets. A number of opportunities to increase milling throughput, recoveries and concentrate grades, all leading to increased production rates, are being pursued. 

Silver Purchase Agreement

Silver Wheaton acquired Silverstone Resources Corp. in May 2009 giving Silver Wheaton the right to purchase Silver 100% of the silver production from the Cozamin mine until 2017 for the lesser of US$4.00 per ounce of silver (subject to an annual inflationary adjustment) or the prevailing market price per ounce of silver delivered.  

More Information

For further information about the Cozamin mine, please visit Capstone Mining Corp.’s website at

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