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PROVISION FOR ENVIRONMENTAL REHABILITATION | 12 Months Ended
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Dec. 31, 2011
PROVISION FOR ENVIRONMENTAL REHABILITATION |
14. | PROVISION FOR ENVIRONMENTAL REHABILITATION
The Group has made, and expects to make in the future, expenditures to comply with environmental laws and regulations, but cannot predict the full amount of such future expenditures. Estimated future reclamation costs are based principally on legal and regulatory requirements. The following is a reconciliation of the total liability for environmental rehabilitation:
|  | December 31, 2011 |  |  | December 31, 2010 |  |  | June 30, 2010 |
Asset retirement obligations |  |  |  |  |  |  |  |  |  |  |  |
Opening balance |  |  | 324.4 |  |  |  | 275.7 |  |  |  | 236.9 |
Addition to liabilities |  |  | 18.7 |  |  |  | 12.3 |  |  |  | 11.9 |
Liabilities settled |  |  | (1.7 | ) |  |  | (2.1 | ) |  |  | (4.3 | )
Accretion of liability |  |  | 24.9 |  |  |  | 10.9 |  |  |  | 19.3 |
Foreign currency translation adjustment |  |  | (29.4 | ) |  |  | 27.6 |  |  |  | 11.9 |
Balance at close |  |  | 336.9 |  |  |  | 324.4 |  |  |  | 275.7 |
The Group intends to finance the ultimate rehabilitation costs of the South African operations from the monies invested with the environmental trust fund, ongoing contributions, as well as the proceeds of the sale of assets and gold from plant clean-up at the time of mine closure.

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- Definition The entire disclosure for an asset retirement obligation and the associated long-lived asset. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 143 -Paragraph 22 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7569-110849 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 + Details
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