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Major Items Causing Income Tax Provision to Differ from South African Mining Statutory Rate (Detail) (USD $)
In Millions, unless otherwise specified

6 Months Ended

12 Months Ended

Dec. 31, 2010

Dec. 31, 2011

Jun. 30, 2010

Jun. 30, 2009

Income Taxes [Line Items]

Tax on net income at South African mining statutory rate

$ (83.7)

$ (648.4)

$ (366.1)

$ (237.0)

Rate adjustment to reflect company tax rates.

74.3

239.2

62.7

49.1

South African mining tax formula rate adjustment

10.4

11.9

16.6

27.7

Valuation allowance raised against deferred tax assets

(8.3)

(17.5)

Reversal of valuation allowance previously raised against deferred tax assets

10.3

22.0

0.1

2.7

Non taxable income/non deductible expenditure

(197.6)

^[1]

(199.0)

^[1]

27.4

^[1]

(54.4)

^[1]

South African capital gains tax

(23.9)

Royalties

(71.6)

^[2]

(37.7)

^[2]

Deferred tax release on reduction of tax rate at the Peruvian operation (six months ended December 31, 2010: South African operations)

61.3

9.1

Other

(8.8)

13.2

4.7

2.5

Income and mining tax expense

$ (133.8)

$ (552.0)

$ (358.4)

$ (264.6)

SOUTH AFRICA | Mining statutory rate

Income Taxes [Line Items]

Statutory income tax rate

43.00%

43.00%

43.00%

43.00%

SOUTH AFRICA | Non-mining income standard tax rate

Income Taxes [Line Items]

Statutory income tax rate

35.00%

35.00%

35.00%

35.00%

SOUTH AFRICA | Non-mining companies

Income Taxes [Line Items]

Statutory income tax rate

28.00%

28.00%

28.00%

28.00%

GHANA

Income Taxes [Line Items]

Statutory income tax rate

25.00%

25.00%

25.00%

25.00%

AUSTRALIA

Income Taxes [Line Items]

Statutory income tax rate

30.00%

30.00%

30.00%

30.00%

PERU

Income Taxes [Line Items]

Statutory income tax rate

35.60%

30.00%

35.60%

35.60%

[1]

The $199.0 million (six months ended December 31, 2010: $197.6 million) non-deductible expenditure comprises mainly $nil (six months ended December 31, 2010: $128.0 million) empowerment transaction costs, $24.5 million (six months ended December 31, 2010: $11.6 million) share-based-compensation, $92.8 million (six months ended December 31, 2010: $25.9 million) exploration, feasibility and evaluation costs and $35.9 million (six months ended December 31, 2010: $12.6 million) National Stabilization Levy in Ghana.

[2]

The classification of royalty expense at the Group's operations requires judgement, particularly at the Groups' South African and Ghanian operations, where the percentages to be applied in calculating royalties are influenced by the expenses incurred in generating those product sales (and therefore the profitability of the operations). In light of the continued increase in royalties at the Group's international operations, and the fact that changes to the calculation of royalties in Ghana, representing the largest component of consolidated royalty expense, changed to a predetermined 5% of product sales (regardless of the operating margin), Gold Fields changed the classification of royalty expense in its consolidated financial statements from a component of "income and mining taxes" to "other expenses" in its consolidated statements of operations starting with the six months ended December 31, 2010. Given the change in circumstances, Gold Fields considered it appropriate to change the presentation on a prospective basis.

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The domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems.

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