Environmental Data Summary

Aluminium CSG (Land)

	BMS Mines	Worsley Refinery	Hillside Smelter	Bayside Smelter	Mozal Smelter	Aluminium CSG Total
Land Area Owned/leased/managed¹ (hectares)
Total area, and consisting of:	303,530	273,970	140	160	140	577,940
a) Area being used by infrastructure²	330	290	140	160	80	1,000
of which the area that will require rehabilitation	330	0	0	0	0	330
b) Area being used for mining³	650	730	0	0	0	1,380
c) Area being used for supporting facilities⁴	2,830	1,330	0	0	10	4,170
d) Area intended for future operation	278,490	95,190	0	0	0	373,680
e) Buffer zones and area not planned for operation	17,740	176,840	0	0	0	194,580
f) Exploration lease excluding areas a-e above⁵	0	0	0	0	0	0
g) Others	3,490	-410	0	0	50	3,130
Land in Biodiversity Significant Areas (hectares)
Land owned, leased or managed in biodiversity rich habitats	140	0	0	0	0	140
Area assigned as or for biodiversity conservation area	0	0	0	0	0	0
Land Use (hectares)
Land newly disturbed in the reporting period	410	290	0	0	0	700
Land rehabilitated in the reporting period	60	120	0	0	20	200
Total disturbed area requiring rehabilitation⁶	40	3,120	0	10	0	3,170
Total disturbed area available for rehabilitation	20	30	0	0	-10	40
Cumulative rehabilitated land	0	1,330	0	0	0	1,330

Note:
Does not include offshore acreage.

Includes: building/offices, processing plants, roads and rails.

Includes area directly related to current mining activities only.

Waste rock dumps, tailing dams, settling ponds, evaporation ponds, landfill/waste dumps, rehabilitated land.

Areas under investigation for potential activities.

This value includes the area to be rehabilitated while the project is operational, not the total area that will require rehabilitation at the end of project life.

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BHP Billiton Health, Safety, Environment & Community Report 2004. Working for a Sustainable Future.

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Environmental Data Summary

Aluminium CSG (Land)