2011	2010
				R’000	R’000
15.	Long-term provisions
	Environmental obligations
	Provision against cost of decommissioning assets			152 005	116 659
	Balance at beginning of year			116 659	119 366
	Provisions raised/(reversed) during the year			25 798	(3 355)
	Provision discount adjustment			9 548	648
	Provision for cost of environmental restoration			52 805	54 586
	Balance at beginning of year			54 586	61 161
	Provisions reversed during the year			(5 382)	(10 649)
	Provision discount adjustment			3 601	4 074
	Balance at end of year			204 810	171 245
	Post-retirement healthcare benefits (refer note 33)
	Balance at beginning of year			10 597	10 648
	Increase/(decrease) in benefits payable			1 252	(51)
	Balance at end of year			11 849	10 597
	Carried forward			216 659	181 842
	Brought forward			216 659	181 842
	Deferred bonus scheme
	Balance at beginning of year			32 251	14 782
	Provision (reversed)/raised during the year			(2 067)	17 469
	Transferred to short-term provisions (refer note 17)			(23 955)	–
	Balance at end of year			6 229	32 251
				222 888	214 093
	Environmental restoration obligations before funding (as above)			204 810	171 245
	Less: Cash deposits held by environmental trusts (per balance sheet)			70 292	57 927
	Obligation provided for on the balance sheet, but not yet funded			134 518	113 318
	The provision for environmental restoration obligations is calculated based on discounted cash flow techniques using inflation rates of between 6,5% and 9,5% (2010: 4% and 9,5%) and nominal rates of between 8,5% and 13% (2010: 7,5% and 13%).