Modern zinc refining in Peru started with the La Oroya refinery in 1922. It continued its development with the inauguration of a second refinery, Cajamarquilla in April l98l. Hydroelectric energy, another gift of the Andes, provides an internationally competitive source of electricity. Since 2004, the opening of the Camisea natural gas fields, one of South America’s largest, has given IEQSA an additional competitive energy source. Finally, the recent inauguration of new zinc mines, has placed Peru in the second place among the world’s zinc exporters.