Differentiate fixed costs and variable costs. 1  Total cost is the sum of fixed and variable costs.  Variable costs change according to the quantity of a good or service being produced. The amount of materials and labor that is needed for to make a good increases in direct proportion to the number of goods produced.
Southern Copper Corporation is an American-based copper producer with major operations in Mexico and Peru. Grupo Mexico currently owns 75.1% of the company, which produced 487 thousand metric tons of copper in 2010. Major assets include the Cuajone and Toquepala mines in Peru and the Cananea mine in Mexico.
Several more Quebalix systems are in the planning stage for the mine. The Buenavista del Cobre Mine is owned by Grupo Mexico, mÃ©xico which operates a number of mining activities In, Mexico peru and THE. Usa Grupo mexico mÃ©xico is one of the largest copper producers worldwide and owns some of the largest copper. reserves globally