2007 Financial statements

Note 40 - Principal jointly controlled assets and other proportionally consolidated units

**At 31 December 2007**
Name and country of operation	Principal activities	Group interest %
Brazil
Consórcio de Alumínio Maranhão	Alumina production	10.0
Australia
Tomago Aluminium Joint Venture	Aluminium smelting	51.6
Bengalla	Coal mining	30.3
Blair Athol Coal (b)	Coal mining	71.2
Hail Creek	Coal mining	82
Kestrel	Coal mining	80
Mount Thorley	Coal mining	60.6
Warkworth	Coal mining	42.1
Northparkes Mine	Copper/gold mining and processing	80
Gladstone Power Station	Power generation	42.1
Robe River Iron Associates	Iron ore mining	53
Hope Downs Joint Venture	Iron ore mining	50
HIsmelt®	Iron ore technology	60
Canada
Diavik	Mining and processing of diamonds	60
Indonesia
Grasberg expansion	Copper and gold mining	40
United States of America
Greens Creek (c)	Silver, gold, zinc and lead mining	70.3


Notes	Expand
The Group comprises a large number of operations, and it is not practical to include all of them in this list. The list therefore only includes those proportionally consolidated units that have a more significant impact on the profit or operating assets of the Group. The Group has a direct interest of 57.2 per cent in Blair Athol Coal, and an additional 14 per cent interest through its investment in Leichhardt Coal Pty Limited, which is disclosed as a jointly controlled entity in note 38. See footnote (b) of note 42. The Group's proportionally consolidated units are held by intermediate holding companies and not directly by Rio Tinto plc or Rio Tinto Limited.