|At 1 January 2008||675||256||293||1,224|
|Acquired through business combinations||13||3||94||110|
|Disposal of businesses||(1)||–||–||(1)|
|Charged to the income statement||134||10||92||236|
|Unwinding of discount||19||14||–||33|
|At 31 December 2008||700||241||544||1,485|
Maturity analysis of total provisions:
The Group has an obligation to undertake restoration, rehabilitation and environmental work when environmental disturbance is caused by the development or ongoing production of a mining property. A provision is recognised for the present value of such costs. It is anticipated that these costs will be incurred over a period in excess of 20 years.
Provision is made for the present value of costs relating to the decommissioning of plant or other site restoration work. It is anticipated that these costs will be incurred over a period in excess of 20 years.
Other provisions primarily relate to cash settled share-based payments, indemnities, warranties and legal claims. It is anticipated that these costs will be incurred over five year period.