Gold and silver

Rio Tinto's gold and silver are now produced mainly by Kennecott Minerals, Kennecott Utah Copper and its joint ventures Escondida in Chile, Grasberg in Indonesia and Northparkes in Australia.

The following table details production and commodity information for Rio Tinto's worldwide gold and silver operations:

Operation Rio Tinto share Commodity Total annual production, '000 ounces (as at December 31 2007)
Barneys Canyon, North America 100.0% Gold 11
Bingham Canyon, North America 100.0% Gold
Silver
397
3,487
Cortez/Pipeline, North America 40.0% Gold 538
Escondida, South America 30.0% Gold
Silver
187
7,870
Grasberg, Indonesia 40.0% Gold
Silver
2,689
5,238
Greens Creek, North America 70.3% Gold
Silver
68
8,646
Kennecott Utah Copper, North America 100.0% Gold (refined)
Silver (refined)
523

4,365
Northparkes, Australia 80.0% Gold 79
Rawhide, North America 51.0% Gold 19
Rio Tinto share of total gold and silver production, '000 ounces (as at December 31 2007)   Gold
Gold (refined)
Silver
Silver (refined)
1,233
523

13,002
4,365