Key Data

Location:

Chile’s Coquimbo Region, 240km northeast of Santiago

Shareholders:

60% Antofagasta plc, 40% Japanese Consortia

Ore Reserves:

1,478.7 million tonnes @ 0.62% copper, 0.018% molybdenum and 0.03 g/tonne gold

Mineral Resources:

6,005.9 million tonnes @ 0.51% copper, 0.011% molybdenum and 0.03 g/tonne gold

Figures as of December 2011

Los Pelambres is a sulphide deposit located in Chile’s Coquimbo Region, 240 km north-east of Santiago. It produces copper concentrate (containing gold and silver) and molybdenum concentrate, through a milling and flotation process.

The forecast for 2012 production is for approximately 390,000 tonnes of payable copper, 11,000 tonnes of molybdenum and 28,000 ounces of gold.