Overseas Facilities

SMM's Interest：

SMM: 85％, Sumitomo Corporation: 15％

Start of Production：

2006

Production Quantity：

Approx. 12 t/year; Gold Reserve: 130 t

SMM's Interest:

SMM: 12％, Freeport-McMoRan Copper & Gold Inc.: 85％, Sumitomo Corporation: 3％

Equity Participation:

1986

Production of electrolytic copper using a leaching method ('07 copper production result: 368,000 t)

SMM's Interest:

SMM: 16％, Freeport-McMoRan Copper & Gold Inc.: 80％, Sumitomo Corporation: 4％

Start of Production:

1995

Production of copper concentrates ('07 copper production result: 184,000 t)

SMM's Interest:

SMM: 16.8％, Freeport-McMoRan Copper & Gold Inc.: 53.6％, Sumitomo Corporation: 4.2％, others: 25.4％

Equity Participation:

2005

Production of electrolytic copper using a leaching method ('07 copper production result: 270,000 t)

SMM's Interest:

SMM: 16％, Freeport-McMoRan Copper & Gold Inc.: 80％, Sumitomo Corporation: 4％

Equity Participation:

2005 (start of production: 1929)

Production of copper concentrates ('07 copper production result: 26,000 t)

SMM's Interest:

SMM: 3.5％, Newmont Mining Corporation: 31.5％, Sumitomo Corporation: 18.2％, others: 46.8%

Start of Production:

1999

Production of copper concentrates

SMM's Interest:

SMM: 13.3％, Rio Tinto: 80％, Sumitomo Corporation: 6.7％

Start of Production:

1994

Production of copper concentrates

SMM's Interest:

SMM: 27.07％, Tongling Non-Ferrous Metals (China): 61.4％, Sumitomo Corporation: 7.86％, Ping Guo Aluminum Company (China): 3.67％

Equity Participation:

1995

Production of copper, sulfuric acid, and precious metals (annual production capacity: copper: 270,000 t)

SMM's Interest:

SMM: 54％, Mitsui & Co., Ltd.: 18％, Sojitz Corporation: 18％, Rio Tuba Nickel Mining Corporation: 10％

Start of Production:

2004

Production of nickel-cobalt mixed sulfide, an intermediate product in the nickel refining process

Annual production capacity (in the form of metal): nickel: approx. 10,000 t, cobalt: approx. 700 t)

SMM's Interest:

SMM: 20.09％, Vale Inco: 60.8％, others: 19％)

Equity Participation:

1988

Production of nickel matte, an intermediate product in the nickel refining process

SMM's Interest:

SMM: 25.5％, others: 74.5％

Equity Participation:

1990

Production of nickel ore

SMM's Interest:

SMM: 11％, Vale Inco: 69％, Mitsui & Co., Ltd.: 10％, SPMSC: 10％)

Equity Participation:

2004

Production of nickel-cobalt mixed sulfide, an intermediate product in the nickel refining process

Annual planned production (in the form of metal): oxidized nickel: approx. 60,000 t, cobalt carbonate: approx. 4,000 to 5,000 t)