EXK's silver production in 2013 is forecast to rise 12-18% to 5.0-5.3 million ounces and gold production is anticipated to increase 19-27% to 46,000-49,000 ounces. Silver equivalent production is expected to climb 14-22% to 7.3-7.8 million ounces (at a silver:gold ratio of 50:1). Consolidated cash costs of production are expected to increase from the current US$6-7 per ounce range to the $9-10 range in 2013, largely due to the rising production from the higher cost El Cubo mine and the lower grades being mined at Guanacevi. However, El Cubo cash costs should decline in 2013 due to rising operating efficiencies and once the capital projects are completed. Assuming $30 silver and $1650 gold, Endeavour anticipates its mine operating (gross) profit margin will be around $20-21 per ounce in 2013. For every $100 increase in the price of gold, Endeavour's cash cost of production should drop by about $0.90-1.00 per ounce of silver produced and the mine operating profit margin should climb by a similar amount per ounce of silver production.