ARM Copper

Konkola North Copper Mine

ARM and its 50:50 strategic joint venture partner Vale, owners of Konnoco Zambia, announced on 27 August 2010 the release of the Konkola North Copper Mine in Zambia. The newly developed mine will be housed in ARM’s new division, ARM Copper.

Divisional structure

• * The Konkola North Copper Project was subject to a buy-in right of up to 20% (5% free carried interest) by State-owned Zambia Consolidated Copper Mines Investment Holding plc (ZCCM). ZCCM has exercised this right and the transfer of the 20% to ZCCM is in the process of being effected.

Mineral resources summary as at 30 June 2011

Mineral project	Mineral resources category	Tonnes (Mt)	Copper (%)	Contained copper (Mt)
Konkola North Copper Project
South Limb1	Measured	0.7	2.70	0.02
	Indicated	23.9	2.13	0.51
	Total	24.6	2.15	0.53
East Limb1	Measured	4.0	2.64	0.11
	Indicated	16.6	2.58	0.43
	Total	20.6	2.59	0.54
Fold Axis1	Measured	0.4	2.10	0.01
	Indicated	11.8	2.70	0.32
	Total	12.2	2.68	0.33
Total	Measured and Indicated	57.4	2.42	1.40
South Limb1	Inferred	13.8	2.22
East Limb1	Inferred	0.4	2.00
Fold Axis1	Inferred	9.7	2.25
Area ‘A’2	Inferred	219.5	2.64

1. ¹ The mineralised zones were modelled on a 1% total copper cut-off, and were signed off by AMEC E&C Inc.
2. ² Resources defined are historical and not verified by AMEC E&C Inc.

Konkola North Copper project geological cross section