2

Accounting policies

 The principal accounting policies applied in the preparation of the consolidated and company financial statements are set out below. These policies have been consistently applied in all years presented, unless otherwise stated.
 

2.1

Basis of preparation

  The financial statements of the group and company have been prepared in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board (IFRS), IFRIC Interpretations and the Companies Act of South Africa applicable to companies reporting under IFRS. The financial statements have been prepared under the historical cost convention, as modified by the revaluation of available-for-sale financial assets and financial assets and financial liabilities at fair value through profit or loss.
   
  The preparation of financial statements in conformity with IFRS requires the use of certain critical accounting estimates. It also requires management to exercise its judgement in the process of applying the group’s accounting policies. The areas involving a higher degree of judgement or complexity, or areas where assumptions and estimates are significant to the consolidated and group financial statements are disclosed in note 3.
   
  New standards, amendments to standards and interpretations of existing standards adopted by the group:
  • The following amendment to a standard has become effective and the effect has been disclosed by the group:

    IFRS 7 (Amendment) – Financial Instruments disclosures: Improving Disclosures about Financial Instruments (effective from periods beginning 1 January 2009).
    The amendment increases the disclosure requirements about fair value measurement and reinforces existing principles for disclosure about liquidity risk. The amendment introduces a three-level hierarchy for fair value measurement disclosure and requires some specific quantitative disclosures for financial instruments in the lowest level in the hierarchy. In addition, the amendment clarifies and enhances existing requirements for the disclosure of liquidity risk primarily requiring a separate liquidity risk analysis for derivative and non-derivative financial liabilities. The effect of the amendment has been disclosed in note 4, Financial Risk Management.
  • The following standards or amendments to standards have become effective but were not relevant to the group:

    IFRS 1 and IAS 27 (Amendment) – IFRS 1 First-Time Adoption of International Financial Reporting Standards and IAS 27 Consolidated and Separate Financial Statements: Cost of an Investment in a Subsidiary, Jointly Controlled Entity or Associate.

    IAS 39 (Amendment) – IAS 39 Financial Instruments: Recognition and Measurement Exposures Qualifying for Hedge Accounting.

    IFRIC 15 – Agreements for the Construction of Real Estate.
  • The following standards or amendments to standards have become effective but had no impact on the results of the group:

    IFRS 2 (Amendment) – Share-Based Payment: Vesting Conditions and Cancellations (effective from periods beginning 1 January 2009).
    The amendment deals with two matters. It clarifies that vesting conditions are service conditions and performance conditions only. Other features of a share-based payment are not vesting conditions. It also specifies that all cancellations, whether by the entity or by other parties, should receive the same accounting treatment.

    IFRS 3 (Revised) – Business Combinations (effective from periods beginning 1 July 2009).

    The new standard continues to apply the acquisition method to business combinations, with some significant changes. For example, all payments to purchase a business are to be recorded at fair value at the acquisition date, with some contingent payments subsequently re-measured at fair value through income. Goodwill may be calculated based on the parent’s share of net assets or it may include goodwill related to the minority interest. All transaction costs will be expensed.

    IAS 18 (Amendment) – Revenue (no effective date, amendment is made to the appendix which is not part of the standard, effective on date of publication)
    The amendment is part of the IASB’s annual improvements project published in April 2009. An additional paragraph has been added to the appendix to IAS 18, providing guidance on whether an entity is acting as principal or agent.

    IAS 27 (Revised) – Consolidated and separate financial statements (effective from periods beginning 1 July 2009)
    The revised standard requires the effects of all transactions with non-controlling interests to be recorded in equity if there is no change in control. They will no longer result in goodwill or gains and losses. The standard also specifies the accounting when control is lost. Any remaining interest in the entity is re-measured to fair value and a gain or loss is recognised in profit or loss. A corresponding amendment to IAS 21 was made as a result of IAS 27 (Revised) that clarifies that upon partial disposal of a subsidiary that includes a foreign operation, the group is required to re-attribute the proportionate share of the cumulative exchange differences recognised in other comprehensive income to the non-controlling interests in that foreign operation (i.e., the transaction is recognised in equity). Only upon loss of control of a subsidiary that includes a foreign operation is the cumulative amount of exchange differences relating to that foreign operation reclassified from other comprehensive income to profit and loss.

    IAS 32 and IAS 1 (Amendment) – IAS 32 Financial Instruments: Presentation and IAS 1 Presentation of financial statements: Puttable Financial Instruments and Obligations Arising on Liquidation (effective from periods beginning 1 January 2009).
    The amendments require entities to classify the following types of financial instruments as equity, provided they have particular features and meet specific conditions: a) puttable financial instruments (for example, some shares issued by co-operative entities); b) instruments, or components of instruments, that impose on the entity an obligation to deliver to another party a pro rata share of the net assets of the entity only on liquidation (for example, some partnership interests and some shares issued by limited life entities). Additional disclosures are required about the instruments affected by the amendments.

    IFRIC 9 and IAS 39 – Embedded Derivatives
    The amendment results in a mandatory assessment of any embedded derivatives following reclassification of a financial asset out of the fair value through profit or loss category. The assessment will not have taken place at initial recognition, as the entire asset was accounted for at fair value. The amendment is necessary to ensure that, following a reclassification from the fair value category, entities apply the requirements for separation of an embedded derivative that is not closely related to the host contract. The assessment should be made on the basis of the circumstances that existed when the entity first became a party to the contract. In addition, if the fair value of the embedded derivative that would have to be separated cannot be reliably measured, the hybrid financial asset in its entirety should remain in the fair value through profit or loss category.

    IFRIC 16 – Hedges of a Net Investment in a Foreign Operation (effective from periods beginning 1 October 2008)

    IFRIC 16 provides guidance on identifying the foreign currency risks that qualify as a hedged risk (in the hedge of a net investment in a foreign operation). It secondly provides guidance on where, within a group, hedging instruments that are hedges of a net investment in a foreign operation can be held to qualify for hedge accounting. Thirdly, it provides guidance on how an entity should determine the amounts to be reclassified from equity to profit or loss for both the hedging instrument and the hedged item.

    IFRIC 17 – Distributions of Non-cash Assets to Owners (effective from periods beginning 1 July 2009)
    IFRIC 17 applies to the accounting for distributions of non-cash assets (commonly referred to as dividends in specie) to the owners of the entity. The interpretation clarifies that: a dividend payable should be recognised when the dividend is appropriately authorised and is no longer at the discretion of the entity; an entity should measure the dividend payable at the fair value of the net assets to be distributed; and an entity should recognise the difference between the dividend paid and the carrying amount of the net assets distributed in profit or loss.

    IFRIC 18 – Transfers of assets from customers (effective from periods beginning 1 July 2009)
    The interpretation clarifies the accounting treatment for transfers of property, plant and equipment received from customers. This Interpretation applies to agreements with customers in which the entity receives cash from a customer when that amount of cash must be used only to construct or acquire an item of property, plant and equipment and the entity must then use the item of property, plant and equipment either to connect the customer to a network or to provide the customer with on-going access to a supply of goods and services, or to do both.

    Improvement projects:
    These amendments are the result of conclusions the Board reached on proposals made in its annual improvement project. Unless otherwise specified, the amendments are effective for annual accounting periods beginning on or after 1 January 2009, although entities are permitted to adopt them earlier. The directors believe that none of the new or revised statements and revised interpretations will have a significant effect on the group’s accounting policies.

    Standards, amendments to standards and interpretations to existing standards that are not yet effective and have not been early adopted by the group:

    At the date of authorisation of these financial statements, the standards, amendments to standards and interpretations listed below were in issue but not yet effective. These new standards and interpretations have not been early adopted by the group and a reliable estimate of the impact of the adoption thereof for the group cannot yet be determined for all of them, as management is still in the process of determining the impact of these standards and interpretations on future financial statements. The group plans on adopting these standards, amendments to standards and interpretations on the dates when they become effective.

    IFRS 1 (Amendment): First-time Adoption of International Financial Reporting Standards – Additional Exemptions for First-time Adopters (effective for financial periods beginning on/after 1 January 2010)
    The amendments address the retrospective application of IFRSs to particular situations including: the use of deemed cost for oil and gas assets; determination of whether an arrangement contains a lease; and decommissioning liabilities included in the cost of property, plant and equipment and are aimed at ensuring that entities applying IFRSs will not face undue cost or effort in the transition process. This amendment will not have an impact on the group.

    IFRS 1 (Amendment): First-time Adoption of International Financial Reporting Standards – Limited Exemptions from Comparative IFRS 7 Disclosures for First-time Adopters (effective for financial periods beginning on/after
    1 July 2010)
    The additional amendment relieves first-time adopters of IFRSs from presenting comparative information for new three level classification disclosures required by the March 2009 amendments to IFRS 7 'Financial Instruments: Disclosures'. It thereby ensures that first-time adopters benefit from the same transition provisions that amendments to IFRS 7 provides to current IFRS preparers. This amendment will not have an impact on the group.

    IFRS 2 (Amendment) – Group cash-settled and share-based payment transactions (effective from periods beginning 1 January 2010)

    The amendment provides a clear basis to determine the classification of share based payments in consolidated and separate financial statements. In addition to incorporating IFRIC 8, ’Scope of IFRS 2’, and IFRIC 11, ’IFRS 2 – group and treasury share transactions’, the amendment also expands on the guidance in IFRIC 11 to address group arrangements that were not considered by that interpretation. The group does not have a cash settled share based payments scheme.

    IFRS 5 (Amendment) – Measurement of non-current assets (or disposal groups) classified as held for sale (effective from periods beginning 1 January 2010)
    The amendment is part of the IASB’s annual improvements project published in April 2009. The amendment provides clarification on disclosures required in respect of non-current assets (or disposal groups) classified as held for sale or discontinued operations. It also clarifies that the general requirement of IAS 1 still applies, particularly paragraph 15 (to achieve a fair presentation) and paragraph 125 (sources of estimation uncertainty). The group is still in the process of determining the effect of this amendment on the financial statements.

    IFRS 9 – Financial instruments (effective from periods beginning 1 January 2013)
    IFRS 9 simplifies accounting for financial assets as requested by many constituents and stakeholders. In particular, it replaces multiple measurement categories in IAS 39 with a single principle-based approach to classification. IFRS 9 removes complex rule-driven embedded derivative guidance in IAS 39 and requires financial assets to be classified in their entirety. IFRS 9 eliminates the need for multiple impairment models, such that only one impairment model for financial assets carried at amortised cost will be required. The group is still in the process of determining the effect of this standard on the financial statements.

    IAS 1 (Amendment) – Presentation of financial statements (effective from periods beginning 1 January 2010)
    The amendment is part of the International Accounting Standards Board’s (IASB) annual improvements project published in April 2009. The amendment provides clarification that the potential settlement of a liability by the issue of equity is not relevant to its classification as current or non current. By amending the definition of current liability, the amendment permits a liability to be classified as non current (provided that the entity has an unconditional right to defer settlement by transfer of cash or other assets for at least 12 months after the accounting period) notwithstanding the fact that the entity could be required by the counterparty to settle in shares at any time.

    IAS 7 (Amendment) – Statement of cash flows (effective from periods beginning 1 January 2010)
    The amendment is part of the IASB’s annual improvements project published in April 2009. The amendment clarifies that only expenditure that results in a recognised asset in the statement of financial position can be classified as a cash flow from investing activities. The group currently does not expect the amendment to impact the financial statements.

    IAS 17 (Amendment) – Leases (effective from periods beginning 1 January 2010)
    The amendment is part of the IASB’s annual improvements project published in April 2009. The amendment deletes relevant guidance regarding classification of leases of land, so as to eliminate inconsistency with the general guidance on lease classification. As a result, leases of land should be classified as either finance or operating, using the general principles of IAS 17.

    IAS 24 (Revised) – Related-party disclosures (effective from periods beginning 1 January 2011)
    The revised standard removes the requirement for government-related entities to disclose details of all transactions with the government and other government-related entities. It also clarifies and simplifies the definition of a related party.

    IAS 32 (Amendment) – Classification of rights issues (effective from periods beginning 1 February 2010)

    The amendment recognises that the previous requirement to classify foreign-currency denominated rights issued to all existing shareholders on a pro rata basis as derivative liabilities is not consistent with the substance of the transaction, which represents a transaction with owners acting in their capacity as such. The amendment therefore creates an exception to the ’fixed for fixed’ rule in IAS 32 and requires rights issues within the scope of the amendment to be classified as equity.

    IAS 36 (Amendment) – Impairment of Assets (effective from periods beginning 1 January 2010)
    The amendment is part of the IASB’s annual improvements project published in April 2009. The amendment clarifies that the largest cash generating unit (or group of units) to which goodwill should be allocated for the purposes of impairment testing is an operating segment as defined by paragraph 5 of IFRS 8 – ’Operating segments’, that is; before the aggregation of segments with similar economic characteristics permitted by paragraph 12 of IFRS 8.

    IAS 38 (Amendment) – Intangible assets (effective from periods beginning 1 January 2010)
    The amendment is part of the IASB’s annual improvements project published in April 2009. The amendment clarifies the description of valuation techniques commonly used by entities when measuring the fair value of intangible assets acquired in a business combination, where there is no active market. The effect of the amendment will be recorded in future periods when such transactions are entered into.

    IAS 39 (Amendment) – Financial instruments: Recognition and measurement (effective from periods beginning 1 January 2010)
    Three amendments were made to IAS 39 as part of the IASB’s annual improvements project published in April 2009.
    (i)The scope exemption within IAS 39.2(g) was amended to clarify that it only applies to forward contracts that will result in a business combination at a future date, as long as the term of the forward contract does ’not exceed a reasonable period normally necessary to obtain any required approvals and to complete the transaction.
      
    (ii)Clarification that amounts deferred in equity are only reclassified to profit or loss when the underlying hedged cash flows affect profit or loss.
      
    (iii)An additional example of a closely related embedded prepayment option in a debt instrument was added to the adoption guidance in IAS 39 AG 30. Wording with respect to the assessment of put and call features in convertible instruments was clarified.
    IFRIC 14 (Amendment): The Limit on a Defined Benefit Asset, Minimum Funding Requirements and their Interaction – Prepayment of minimum funding requirements (effective for financial periods beginning on/after 1 January 2011)
    This amendment applies in the limited circumstances when an entity is subject to minimum funding requirements and makes an early payment of contributions to cover those requirements. The amendment permits such an entity to treat the benefit of such an early payment as an asset. The group does not believe the amendment will have an impact on the group.

    IFRIC 19 – Extinguishing financial liabilities with equity instruments (effective from periods beginning 1 July 2010)
    This interpretation addresses the accounting by an entity when the terms of a financial liability are renegotiated and result in the entity issuing equity instruments to a creditor of the entity to extinguish all or part of the financial liability. It does not address the accounting by the creditor, nor does it apply to situations where the liability may be extinguished with equity instruments in accordance with the agreed terms of the instrument (for example, convertible bonds). The group currently does not expect this interpretation to have a material effect on the financial statements.

    Improvement projects
    Certain improvements to IFRSs 2009 (effective from periods beginning on or after 1 January 2010) and IFRSs 2010 (each has its own effective date, the earliest being 1 July 2010).
 

2.2

Consolidation

  The consolidated financial information includes the financial statements of the company, its subsidiaries, its proportionate interest in joint ventures, special purpose entities (SPEs) and its interests in associates.
     
   (i) Subsidiaries, which are those entities in which the group generally has an interest of more than one half of the voting rights or otherwise has power to govern the financial and operating policies, are consolidated. Subsidiaries are consolidated from the date on which control is transferred to the group and are no longer consolidated when control ceases. The purchase method of accounting is used to account for the acquisition of subsidiaries. The cost of an acquisition is measured as the fair value of the assets given, shares issued or liabilities assumed at the date of exchange plus costs directly attributable to the exchange. Identifiable assets acquired and liabilities and contingent liabilities assumed in a business combination are measured initially at their fair values at the acquisition date, irrespective of the extent of any non-controlling interests. Non-controlling interests are carried at a proportion of the net identifiable assets acquired.
     
    The excess of the cost of acquisition over the fair value of the group’s share of the identifiable net assets acquired is recorded as goodwill. If the cost of acquisition is less than the fair value of the net assets of the subsidiary acquired, the difference is recognised directly in the income statement.
     
    In situations of successive share purchases when control already existed at the date of further acquisition, no fair value adjustment is made to the identifiable net assets acquired and any excess/deficit purchase price over the carrying value of non-controlling interests acquired is accounted for in equity.
     
    Intercompany transactions, balances and unrealised gains on transactions between group companies are eliminated on consolidation. Unrealised losses are also eliminated and may provide evidence of an impairment that should be recognised. Where necessary, accounting policies of subsidiaries have been changed to ensure consistency with the policies adopted by the group.
     
     Investments in subsidiaries are accounted for at cost and are adjusted for impairments where appropriate in the company’s separate financial statements.
     
   (ii)Associates are those entities over which the group has significant influence, but not control over operational and financial policies, generally accompanying a shareholding of between 20% and 50% of the voting rights.
     
    Investments in associates are accounted for by using the equity method of accounting, and are initially recognised at cost. The cost of an acquisition is measured as the fair value of the assets given, shares issued or liabilities assumed at the date of exchange plus costs directly attributable to the acquisition.
     
    The group’s share of the associates’ post-acquisition profits or losses is recognised in the income statement, and its share of post-acquisition movement in reserves is recognised in other reserves. Cumulative post-acquisition movements are adjusted against the carrying amount of the investment. When the group’s share of losses in an associate equals or exceeds its interest in the associate, including any other unsecured receivables, the group does not recognise further losses, unless it has incurred obligations or made payments on behalf of the associate.
     
    The group’s investment in associates includes goodwill identified on acquisition, net of any accumulated impairment losses.
     
    The carrying value of an associate is reviewed on a regular basis and, if an impairment in the carrying value has occurred, it is written off in the period in which such impairment is identified.
     
     Unrealised gains on transactions between the group and its associates are eliminated to the extent of the group’s interest in the associates. Unrealised losses are also eliminated unless the transaction provides evidence of an impairment that should be recognised.
     
    Accounting policies of associates have been reviewed to ensure consistency with the policies adopted by the group.
     
    Investments in associates are accounted for at cost and are adjusted for impairments where appropriate in the company’s separate financial statements.
     
   (iii)Joint venture entities are those entities in which the group holds an interest and shares joint control over strategic, financial and operating decisions with one or more other ventures under a contractual arrangement. The group’s interest in jointly controlled entities is accounted for by proportionate consolidation. Under this method, the group includes its share of the joint venture’s individual income and expenses, assets and liabilities and cash flows on a line-by-line basis with similar items in the group’s financial statements.
     
    The group recognises the portion of gains or losses on the sale of assets by the group to the joint venture that is attributable to the other ventures. The group does not recognise its share of profits or losses from the joint venture that result from the purchase of assets by the group from the joint venture until it resells the assets to an independent party. However, if a loss on the transaction provides evidence of a reduction in the net realisable value of current assets or an impairment loss, the loss is recognised immediately.
     
    Joint venture operations and assets: The group and company has contractual arrangements with other participants to engage in joint activities or invest in joint assets other than through a separate entity. The group and company includes its assets, liabilities and share of income and expenditure in such joint venture operations with similar items in its financial statements.
     
   (iv)Special purpose entities (SPEs) are those undertakings that are created to satisfy specific business needs of the group. These are consolidated where the group has the right to the majority of the benefits of the SPE and/or is exposed to the majority of the risk thereof. SPEs are consolidated in the same manner as subsidiaries when the substance of the relationship indicates that the SPE is controlled by the group.
     
   (v)Transactions with non-controlling interests. The group applies a policy of treating transactions with minority interests as transactions with equity owners of the group. For purchases from non-controlling interests, the difference between any consideration paid and the relevant share acquired of the carrying value of net assets of the subsidiary is recorded in equity. Gains or losses on disposals to non-controlling interests are also recorded in equity.
 

2.3

Foreign currency translation

   (i)Functional and presentation currency: Items included in the financial statements of each of the group’s entities are measured using the currency of the primary economic environment in which the entity operates (the functional currency). The consolidated financial statements are presented in South African rands and US dollars for the benefit of local and international users. The company’s financial statements are presented in its functional currency, the South African rand.
     
    For translation of the rand financial statement items to US dollar, the average of R7.58 (2009: R9.00) per US$1.00 was used for income statement items (unless this average was not a reasonable approximation of the cumulative effect of the rates prevailing on the transaction dates, in which case these items were translated at the rate on the date of the transactions) and the closing rate of R7.63 (2009: R7.72) per US$1.00 for asset and liability items. Equity items were translated at historic rates.
     
    References to “A$” refer to Australian currency, “R” to South African currency, “$” or “US$” to United States currency and "K" or "Kina" to Papua New Guinean currency.
     
   (ii) Transactions and balances: Foreign currency transactions are translated into the functional currency using the exchange rates prevailing at the dates of the transactions. Foreign exchange gains and losses resulting from the settlement of such transactions and from the translation to year-end exchange rates of monetary assets and liabilities denominated in foreign currencies are recognised in the income statement, except where deferred in equity as qualifying cash flow hedges and qualifying investment hedges. Gains and losses recognised in the income statement are included in the determination of "other expenses – net".
     
    Changes in the fair value of monetary securities denominated in a foreign currency classified as available for sale are analysed between translation differences resulting from changes in the amortised cost of the security, and other changes in the carrying amount of the security. Translation differences related to the changes in amortised cost are recognised in profit or loss, and other changes in carrying amount are recognised in other comprehensive income.
     
    Translation differences on non-monetary financial assets and liabilities such as equities held at fair value through profit or loss are recognised in profit or loss as part of the fair value gain or loss. Translation differences on non-monetary financial assets such as equities classified as available for sale are included in other comprehensive income.
     
   (iii)Group companies: The results and financial position of all group entities (none of which has the currency of a hyperinflationary economy) that have a functional currency different from the presentation currency are translated into the presentation currency as follows:
       
     a)assets and liabilities for each balance sheet presented are translated at the closing rate at the date of that balance sheet;
       
     b)income and expenses for each income statement are translated at average exchange rates (unless this average is not a reasonable approximation of the cumulative effect of the rates prevailing on the transaction dates, in which case income and expenses are translated at the rate on the date of the transactions);
       
     c)all resulting exchange differences are recognised as a separate component of other comprehensive income; and
       
     d)equity items are translated at historic rates.
       
    On consolidation, exchange differences arising from the translation of the net investment in foreign operations, and of borrowings, and other currency instruments designated as hedges of such investments, are taken to other comprehensive income. When a foreign operation is sold or control is otherwise lost, exchange differences that were recorded in other comprehensive income are recognised in profit or loss in the period in which the foreign operation is sold or control is otherwise lost.
     
    Goodwill and fair value adjustments arising on the acquisition of a foreign operation are treated as assets and liabilities of the foreign entity and translated at the closing rate.
 

2.4

Segmental reporting

  Operating segments are reported in a manner consistent with the internal reporting provided to the chief operating decision-maker. The chief operating decision-maker has been identified as the executive committee. Refer to note 38 for detailed guidance on the identification of an operating and reportable segment.
 

2.5

Property, plant and equipment

   (i) Mining assets, including mine development costs and mine plant facilities, are initially recorded at cost, after which they are measured at cost less accumulated depreciation and impairment. Costs include expenditure that is directly attributable to the acquisition of the items. Subsequent costs are included in the asset’s carrying amount or recognised as a separate asset as appropriate only when it is probable that future economic benefits associated with the item will flow to the group and the cost of the item can be measured reliably.
     
    At the group’s surface mines, when it has been determined that a mineral property can be economically developed as a result of establishing proved and probable reserves, costs incurred to develop the property are capitalised as incurred until the mine is considered to have moved into the production phase. These costs include costs to further delineate the orebody and remove overburden to initially expose the orebody. Stripping costs incurred during the production phase to remove waste ore are deferred and charged to production costs on the basis of the average life-of-mine stripping ratio. The average stripping ratio is calculated as the number of tonnes of waste material removed per tonne of ore mined. The average life-of-mine ratio is revised annually in the light of additional knowledge and change in estimates. The cost of "excess stripping" is capitalised as a mine development cost when the actual stripping ratio exceeds the average life-of-mine stripping ratio. Where the average life-of-mine stripping ratio exceeds the actual stripping ratio, the cost is charged to the income statement.
     
    At the group’s underground mines, all costs incurred to develop the property, including costs to access specific ore blocks or other areas of the underground mine, are capitalised to the extent that such costs will provide future economic benefits. These costs include the cost of shaft sinking and access, the cost of building access ways, lateral development, drift development, ramps, box cuts and other infrastructure development.
     
    During the development stage, the group may enter into arrangements whereby it agrees to transfer a part of its mineral interest in consideration for an agreement by another party (the farmee) to meet certain expenditure which would otherwise have to be undertaken by the group. Such arrangements, referred to as farm-in transactions, are accounted for as executory contracts – particularly when the expenditures to be incurred by the farmee are discretionary in nature, and the mineral interest to be transferred may vary depending upon such discretionary spend. At the date of completion of each party’s obligations under the farm-in arrangement, the group derecognises the proportion of the mining assets and liabilities associated with the joint venture that it has sold to the farmee, and recognises its interest in the capital expenditure (consideration received) at fair value within operating assets. The difference between the net disposal proceeds and the carrying amount of the asset disposed of is recognised in profit or loss.
     
    Borrowing costs are capitalised to the extent that they are directly attributable to the acquisition and construction of qualifying assets. Qualifying assets are assets that take a substantial time to get ready for their intended use. These costs are capitalised until the asset moves into the production phase. Other borrowing costs are expensed.
     
    The net assets of operations placed on care and maintenance are impaired to their recoverable amount. Expenditure on the care and maintenance of these operations is charged against income, as incurred.
     
    Where a depreciable asset is used in the construction or extension of a mine, the depreciation is capitalised against the mine’s cost.
     
   (ii)Non-mining assets: Land is shown at cost and not depreciated. Other non-mining fixed assets are shown at cost less accumulated depreciation and accumulated impairment losses.
     
   (iii) Undeveloped properties are initially valued at the fair value of resources obtained through acquisitions. The carrying value of these properties is tested annually for impairment. Once development commences, these properties are transferred to mining properties and accounted for in accordance with the related accounting policy.
     
   (iv) Mineral and surface use rights represent mineral and surface use rights for parcels of land both owned and not owned by the group. Mineral and surface rights include acquired mineral use rights in production, development and exploration phase properties. The amount capitalised related to a mineral and surface right represents its fair value at the time it was acquired, either as an individual asset purchase or as part of a business combination, and is recorded at cost of acquisition.
     
    Production phase mineral interests represent interests in operating properties that contain proved and probable reserves. Development phase mineral interests represent interests in properties under development that contain proved and probable reserves. Exploration phase mineral interests represent interests in properties that are believed to potentially contain (i) other mineralised material such as inferred material within pits; measured, indicated and inferred material with insufficient drill spacing to qualify as proved and probable reserves; (ii) around-mine exploration potential such as inferred material not immediately adjacent to existing reserves and mineralisation but located within the immediate mine infrastructure; (iii) other mine-related exploration potential that is not part of measured, indicated or inferred material and comprises mainly material outside of the immediate mine area; or (iv) greenfield exploration potential that is not associated with any production, development or exploration phase property as described above.
     
    The group’s mineral use rights are enforceable regardless of whether proved or probable reserves have been established. In certain limited situations, the nature of a use changes from an exploration right to a mining right upon the establishment of proved and probable reserves. The group has the ability and intent to renew mineral use rights where the existing term is not sufficient to recover all identified and valued proved and probable reserves and/or undeveloped mineral interests.
     
   (v)Leased assets: The group leases certain property, plant and equipment. Leases of property, plant and equipment where the group has substantially all the risks and rewards of ownership are classified as finance leases. The assets are capitalised at the lease’s commencement at the lower of the fair value of the leased property and the present value of the minimum lease payments.
     
    Finance lease payments are allocated using the rate implicit in the lease, which is included in finance costs, and the capital repayment, which reduces the liability to the lessor. The corresponding rental obligations, net of finance charges, are included in non-current borrowings, with the current portion included under current liabilities.
     
    Capitalised lease assets are depreciated over the shorter of their estimated useful lives and the lease terms.
     
   (vi)Depreciation and amortisation of mineral property interests, mineral and surface rights, mine development costs and mine plant facilities are computed principally by the units of production method over the life of mine, based on estimated quantities of economically recoverable proved and probable reserves, which can be recovered in future from known mineral deposits.
     
    In most instances, proved and probable reserves provide the best indication of the useful life of the group’s mines (and related assets). However, in some instances, proved and probable reserves may not provide a realistic indication of the useful life of the mine (and related assets). This may be the case, for example, where management is confident that further resources will be converted into reserves and are approaching economic decisions affecting the mine on this basis, but has chosen to delay the work required to designate them formally as reserves. Management’s confidence in the economical recovery of such resources may be based on historical experience and available geological information. In instances where management is able to demonstrate the economic recovery of such resources with a high level of confidence, such additional resources, as well as the associated future development costs of accessing those resources, are included in the calculation of depreciation and amortisation.
     
    Changes in management’s estimates of economically recoverable reserves and resources impact depreciation and amortisation on a prospective basis. During the 2010 financial year, the group revised its estimate of the useful lives of the Doornkop and Masimong operations to include certain resources in addition to proved and probable reserves. The inclusion of such resources resulted from increased confidence in the economic extraction of resources due to additional surface and underground drilling undertaken in the current year. The effect of including such resources in the useful life of these operations decreased annual depreciation by approximately R9 million (US$1 million).
     
   (vii) Depreciation and amortisation of non-mining fixed assets: Other non-mining fixed assets are depreciated on a straight line basis over their estimated useful lives as follows:
  • vehicles at 20% per year;
  • computer equipment at 33.3% per year;
  • commercial, off-the-shelf software at 50% per year; and
  • furniture and equipment at 16.67% per year.
    The assets’ residual values and useful lives are reviewed, and adjusted if appropriate, at each balance sheet date.
     
    Gains and losses on disposals are determined by comparing proceeds with carrying amount and are recognised in the income statement.
     
   (viii) Depreciation and amortisation of mineral and surface use rights: Mineral rights associated with production phase mineral interests are amortised over the life of mine using the units-of-production method in order to match the amortisation with the expected underlying future cash flows. Mineral interests associated with development and exploration phase mineral interests are not amortised until such time as the underlying property is converted to the production stage.
     
    For details on the group’s accounting policy on impairments, refer to note 2.8.
 

2.6

Exploration costs

  The group expenses all exploration and evaluation expenditures until it is concluded that a future economic benefit is more likely to be realised than not, i.e. ’probable’. The information used to make that determination depends on the level of exploration as well as the degree of confidence in the orebody.
   
  Exploration and evaluation expenditure on greenfield sites, being those where the group does not have any mineral deposits which are already being mined or developed, is expensed as incurred until a final feasibility study has been completed, after which the future pre-commercial production expenditure is capitalised within development costs if the final feasibility study demonstrates that future economic benefits are probable. Capitalisation of pre-production cost ceases when commercial levels of production are reached. Commercial levels of production are discussed under "production start date" in note 3.12.
   
  Exploration and evaluation expenditure on brownfield sites, being those adjacent to mineral deposits which are already being mined or developed, is expensed as incurred until the group is able to demonstrate that future economic benefits are probable through the completion of a feasibility study, after which the expenditure is capitalised as mine development cost. A ’feasibility study’ consists of a comprehensive study of the viability of a mineral project that has advanced to a stage where the mining method, in the case of underground mining, or the pit configuration, in the case of an open pit, has been established, and which, if an effective method of mineral processing has been determined, includes a financial analysis based on reasonable assumptions of technical, engineering and operating economic factors, and the evaluation of other relevant factors. The feasibility study, when combined with existing knowledge of the mineral property that is adjacent to mineral deposits that are already being mined or developed, allows the group to conclude that it is more likely than not that it will obtain future economic benefit from the expenditures.
   
  Exploration and evaluation expenditure relating to extensions of mineral deposits which are already being mined or developed, including expenditure on the definition of mineralisation of such mineral deposits, is capitalised as a mine development cost following the completion of an economic evaluation equivalent to a feasibility study. This economic evaluation is distinguished from a feasibility study in that some of the information that would normally be determined in a feasibility study is instead obtained from the existing mine or development. This information when combined with existing knowledge of the mineral property already being mined or developed allow the directors to conclude that more likely than not the group will obtain future economic benefit from the expenditures.
   
  Exploration properties acquired are recognised in the balance sheet within development cost and are shown at cost less provisions for impairment determined in accordance with the group’s accounting policy on impairment of non-financial assets (note 2.8).
 

2.7

Intangible assets

  Intangible assets consist of all identifiable non-monetary assets without physical substance. They are stated at cost less accumulated amortisation and accumulated impairment losses, if any. The following are the main categories of intangible assets:
     
   (i)Intangible assets with an indefinite useful life
    Intangible assets with an indefinite useful life are not amortised but tested for impairment on an annual basis. Goodwill represents the excess of the cost of an acquisition over the fair value of the group’s share of the net identifiable assets of the acquired subsidiary, associate, joint venture or business at the date of acquisition. Goodwill on acquisition of subsidiaries, joint ventures and businesses is included in intangible assets. Goodwill on acquisition of associates is included in investments in associates and tested for impairment as part of the overall balance.
     
    Goodwill is tested annually for impairment and carried at cost less accumulated impairment losses. Impairment losses on goodwill are recognised immediately in the income statement and are not reversed. The impairment testing is performed annually on 30 June or when events or changes in circumstances indicate that it may be required.
     
    Goodwill is allocated to cash-generating units for the purpose of impairment testing. The allocation is made to those cash-generating units or groups of cash-generating units that are expected to benefit from the business combination in which the goodwill arose. If the composition of one or more cash-generating units to which goodwill has been allocated changes due to a re-organisation, the goodwill is re-allocated to the units affected.
     
    The gain or loss on disposal of an entity includes the carrying amount of goodwill relating to the entity sold.
     
   (ii)Intangible assets with a finite useful life
    Acquired computer software licences that requires further internal development are capitalised on the basis of costs incurred to acquire and bring to use the specific software. Cost to bring to use specific software includes software development employee costs and attributable overheads. Development expenditure incurred that will not likely generate probable future economic benefits and cannot be reliably measured is recognised as an expense as incurred. Intangible assets with a finite useful life are amortised on a straight line basis over their estimated useful lives, which are reviewed annually, as follows:
  • computer software at 20% per year.
 

2.8

Impairment of non-financial assets

  Assets that have an indefinite useful life are not subject to amortisation and are tested annually for impairment.
   
  Assets that are subject to amortisation are reviewed annually on 30 June for impairment or whenever events or changes in circumstances indicate that the carrying amount may not be recoverable.
   
  An impairment loss is recognised in the income statement for the amount by which the asset’s carrying amount exceeds its recoverable amount. The recoverable amount is the higher of an asset’s fair value less costs to sell and value in use. For the purposes of assessing impairment, assets are grouped at the lowest levels for which there are separately identifiable cash flows (cash generating units). Each operating shaft, along with allocated common assets such as plants and administrative offices, is considered to be a cash generating unit as each shaft is largely independent from the cash flows of other shafts and assets belonging to the group.
   
  Fair value less cost to sell is generally determined by using discounted estimated future cash flows. Future cash flows are estimated based on quantities of recoverable minerals, expected gold prices (considering current and historical prices, price trends and related factors), production levels and cash costs of production, all based on life-of-mine plans. Future cash flows are discounted to their present value using a post tax discount rate that reflects current market assessments of the time value of money and risk specific to the asset.
   
  The term “recoverable minerals” refers to the estimated amount of gold that will be obtained from reserves and resources and all related exploration stage mineral interests (except for other mine-related exploration potential and greenfields exploration potential discussed separately below) after taking into account losses during ore processing and treatment. Estimates of recoverable minerals from such related exploration stage mineral interests will be risk adjusted based on management’s relative confidence in such materials. In estimating future cash flows, assets are grouped at the lowest levels for which there are identifiable cash flows that are largely independent of cash flows from other asset groups. With the exception of other mine-related exploration potential and greenfields exploration potential, estimates of future undiscounted cash flows are included on an area-of-interest basis, which generally represents an individual operating mine, even if the mines are included in a larger mine complex.
   
  In the case of mineral interests associated with other mine-related exploration potential and greenfields exploration potential, cash flows and fair values are individually evaluated based primarily on recent exploration results and recent transactions involving sales of similar properties, if any. Assumptions underlying future cash flow estimates are subject to significant risks and uncertainties.
   
  Non-financial assets other than goodwill that have suffered an impairment are reviewed annually for possible reversal of the impairment at 30 June. Reversal of impairments is also considered when there is objective evidence to indicate that the asset is no longer impaired. Where an impairment subsequently reverses, the carrying amount of the asset or CGU is increased to the revised estimate of its recoverable amount, but not higher than the carrying value that would have been determined had no impairment been recognised in prior years.
 

2.9

Financial instruments

  Financial instruments are initially measured at fair value when the group becomes a party to their contractual arrangements. Transaction costs are included in the initial measurement of financial instruments, with the exception of financial instruments classified as at fair value through profit or loss. The subsequent measurement of financial instruments is discussed below.
   
  A financial asset is derecognised when the right to receive cash flows from the asset has expired or the group has transferred its rights to receive cash and either (a) has transferred substantially all the risks and rewards of the asset, or (b) has neither transferred nor retained substantially all the risks and rewards of the asset, but has transferred control of the assets.
   
  A financial liability is derecognised when the obligation under the liability is discharged, cancelled or expires.
   
  On derecognition of a financial asset, the difference between the carrying amount and the sum of the consideration received and any cumulative gain or loss recognised in equity is recognised in profit and loss.
   
  On derecognition of a financial liability, the difference between the carrying amount of the liability extinguished or transferred to another party and the amount paid is recognised in profit or loss.
   
  Financial assets and liabilities are offset and the net amount reported in the balance sheet when there is a legally enforceable right to offset the recognised amounts and there is an intention to settle on a net basis, or realise the asset and settle the liability simultaneously.
   
  Financial assets
  The group classifies its financial assets in the following categories: loans and receivables, available-for-sale, held-to-maturity and at fair value through profit or loss. The classification depends on the purpose for which the financial assets were acquired. Management determines the classification of its financial assets at initial recognition.
   
  Purchases and sales of financial assets are recognised on trade-date, the date on which the group commits to purchase or sell the asset.
   
   (i)Loans and receivables are non-derivative financial assets with fixed or determinable payments that are not quoted in an active market. They arise when the group provides money, goods or services directly to a debtor with no intention of trading the receivable. Loans and receivables are subsequently measured at amortised cost using the effective interest method. They are included in current assets, except for those with maturities greater than 12 months after the balance sheet date which are classified as non-current assets. Loans and receivables include trade and other receivables (excluding VAT and prepayments), restricted cash and cash and cash equivalents.
     
    Cash and cash equivalents
    Cash and cash equivalents are defined as cash on hand, deposits held at call with banks and short-term highly liquid investments with original maturities of three months or less. Cash and cash equivalents exclude restricted cash (discussed below).
     
     Restricted cash
    Restricted cash consists of cash collateral posted for guarantees and performance bonds related to environmental rehabilitation and as security deposits on mining tenements.
     
     Trade and other receivables
    Trade and other receivables are recognised initially at fair value and subsequently measured at amortised cost using the effective interest method, less provision for impairment. If collection is expected in one year or less, they are classified as current assets. If not, they are presented as non-current assets. A provision for impairment of receivables is established when there is objective evidence that the group will not be able to collect all amounts due according to the original terms of receivables. Significant financial difficulties of the debtor, probability that the debtor will enter bankruptcy or financial reorganisation, and default or delinquency in payments are considered indicators that the trade receivable is impaired. The amount of the provision is the difference between the asset’s carrying amount and the present value of estimated future cash flows, discounted at the effective interest rate. The carrying amount of the asset is reduced through the use of a provision for impairment (allowance account) and the amount of the loss is recognised in the income statement. When a trade receivable is uncollectable, it is written off against the allowance account for trade receivables. Subsequent recoveries of amounts previously written off are credited in the income statement.
     
   (ii) Available-for-sale financial assets are non-derivatives that are either designated in this category or not classified in any of the other categories. They are included in non-current assets unless the investment matures or management intends to dispose of the investment within 12 months of the balance sheet date.
     
    Available-for-sale financial assets are subsequently carried at fair value. Changes in the fair value of monetary securities denominated in a foreign currency and classified as available for sale are analysed between translation differences resulting from changes in amortised cost of the security and other changes in the carrying amount of the security. The translation differences on monetary securities are recognised in profit or loss, while translation differences on non-monetary securities are recognised in other comprehensive income. Changes in the fair value of monetary and non-monetary securities classified as available for sale are recognised in other comprehensive income.
     
    When securities classified as available for sale are sold or impaired, the accumulated fair value adjustments recognised in other comprehensive income are reclassified in the income statement as profit or loss from investment securities. Dividends on available-for-sale equity instruments are recognised in the income statement as part of investment income when the group’s right to receive payments is established. Interest on available-for-sale securities calculated using the effective interest method is recognised in the income statement as part of investment income.
     
    The fair values of quoted investments are based on current bid prices. If the value for a financial instrument cannot be obtained from an active market, the group establishes fair value by using valuation techniques. These include the use of recent arm’s length transactions, reference to other instruments that are substantially the same, discounted cash flow analysis, and option pricing models refined to reflect the issuer’s specific circumstances. The valuation techniques make maximum use of market inputs and rely as little as possible on entity-specific inputs.
     
    The group assesses at each balance sheet date whether there is objective evidence that a financial asset or a group of financial assets is impaired. In the case of equity securities classified as available for sale, a significant or prolonged decline in the fair value of the security below its cost is considered in determining whether the securities are impaired. If considered impaired, the cumulative loss – measured as the difference between the acquisition cost and the current fair value, less any impairment loss on that financial asset previously recognised in profit or loss – is removed from other reserves and recognised in the income statement. Subsequent increases in the fair value are recognised in equity – impairment losses recognised in the income statement on equity instruments are not reversed through the income statement.
     
   (iii)Held-to-maturity investments are non-derivative financial assets with fixed or determinable payments and fixed maturities that the group’s management has the positive intention and ability to hold to maturity. The group’s held-to-maturity investments are subsequently measured at amortised cost using the effective interest method.
     
    A portion of restricted investments held by the trust funds (refer note 19) are classified as held-to-maturity investments.
     
    The group assesses at the end of each reporting period whether there is objective evidence that a held-to-maturity investment is impaired as a result of an event. The amount of the loss is measured as the difference between the asset’s carrying amount and the present value of estimated future cash flows (excluding future credit losses that have not been incurred) discounted at the held-to-maturity investments’ original effective interest rate. The asset’s carrying amount of the asset is reduced and the amount of the loss is recognised in the consolidated income statement. If a held-to-maturity investment has a variable interest rate, the discount rate for measuring any impairment loss is the current effective interest rate determined under the contract.
     
    If, in a subsequent period, the amount of the impairment loss decreases and the decrease can be related objectively to an event occurring after the impairment was recognised, the reversal of the previously recognised impairment loss is recognised in the consolidated income statement.
     
   (iv)Financial assets at fair value through profit or loss have two sub-categories: financial assets held for trading, and those designated at fair value through profit or loss at inception. A financial asset is classified in this category if acquired principally for the purpose of selling in the short term or if so designated by management in terms of specified criteria. Derivatives are also categorised as held for trading unless they are designated as hedges. Assets in this category are classified as current assets if they are either held for trading or are expected to be realised within 12 months of the balance sheet date. These assets are subsequently measured at fair value with gains or losses arising from changes in fair value recognised in the income statement in the period in which they arise. Dividend income from these assets is recognised in the income statement as part of investment income when the group’s right to receive payment is established.
     
  Financial liabilities
  Borrowings
Borrowings are initially recognised at fair value net of transaction costs incurred and subsequently measured at amortised cost, comprising original debt less principal payments and amortisation, using the effective yield method. Any difference between proceeds (net of transaction costs) and the redemption value is recognised in the income statement over the period of the borrowing using the effective interest rate method.
   
  Fees paid on the establishment of loan facilities are capitalised as a pre-payment and amortised over the period of the facility to which it relates.
   
  Borrowings are classified as current liabilities unless the group has an unconditional right to defer settlement of the liability for at least 12 months after the balance sheet date.
   
  Trade and other payables
Trade and other payables are recognised initially at fair value and subsequently measured at amortised cost using the effective interest method. Payables are classified as current liabilities if payment is due within a year or less. If not, they are presented as non-current liabilities.
 

2.10

Inventories

  Inventories which include bullion on hand, gold in process, gold in lock-up, ore stockpiles and stores and materials, are measured at the lower of cost and net realisable value after appropriate allowances for redundant and slow moving items. Cost of bullion, gold in process and gold in lock-up is determined by reference to production cost, including amortisation and depreciation at the relevant stage of production. Ore stockpiles are valued at average production cost. Stockpiles and gold in lock-up are classified as a non current asset where the stockpile exceeds current processing capacity and where a portion of static gold in lock-up is expected to be recovered more than 12 months after balance sheet date.
   
  Stores and materials consist of consumable stores and are valued at weighted average cost.
   
  Net realisable value is the estimated selling price in the ordinary course of business less the estimated cost of completion and the estimated cost necessary to perform the sale.
   
  Gold in process inventories represents materials that are currently in the process of being converted to a saleable product. Conversion processes vary depending on the nature of the ore and the specific mining operation, but include mill in-circuit, leach in-circuit, flotation and column cells, and carbon in-pulp inventories. In-process material is measured based on assays of the material fed to process and the projected recoveries at the respective plants. In-process inventories are valued at the average cost of the material fed to process attributable to the source material coming from the mine, stockpile or leach pad plus the in-process conversion costs, including the applicable depreciation relating to the process facility, incurred to that point in the process. Gold in process includes gold in lock-up which is generally measured from the plants onwards. Gold in lock-up is estimated as described under the section dealing with critical accounting estimates and judgements (refer to note 3). It is expected to be extracted when plants are demolished at the end of their useful lives, which is largely dependant on the estimated useful life of the operations feeding the plants. Where mechanised mining is used in underground operations, in-progress material is accounted for at the earliest stage of production when reliable estimates of quantities and costs are capable of being made. Given the varying nature of the group’s open pit operations, gold in process represents either production in broken ore form or production from the time of placement on heap leach pads.
 

2.11

Non-current assets or disposal group held for sale and discontinued operations

  A non-current asset or disposal group (a business grouping of assets and their related liabilities) is designated as held for sale and stated at lower of carrying value and fair value less cost to sell, when its carrying amount will be recovered principally through a sale transaction rather than through continuing use. The classification as held for sale of a non-current asset or disposal group occurs when it is available for immediate sale in its present condition and the sale is highly probable. A sale is considered highly probable if management is committed to a plan to sell the non-current asset or disposal group, an active divestiture programme has been initiated, the non-current asset or disposal group is marketed at a price reasonable to their fair values and the disposal will be completed within one year from classification.
   
  Upon classification of a non-current asset or disposal group as held for sale, it is reviewed for impairment. The impairment charged to the income statement is the excess of the carrying value of the non-current asset or disposal group over its expected net selling price (fair value less costs to sell). At each subsequent reporting date, the carrying values are remeasured for possible impairment. A reversal of impairment is recognised for any subsequent increase in net selling price but not in excess of the cumulative impairment loss already recognised.
   
  No depreciation is provided on non-current assets from the date they are classified as held for sale.
   
  When a disposal group is classified as held for sale it is also necessary to assess whether or not the criteria for discontinued operations are met. If the criteria are met, the results of the disposal group are classified as discontinued operations in the income statement and the comparative amounts restated for all periods presented. No restatement of balance sheet comparative amounts are done.
   
  If a non-current asset or disposal group is classified as held for sale but the criteria for classification as held for sale are no longer met, the disclosure of such a non-current asset or disposal group as held for sale is ceased.
   
  On ceasing such classification, the non-current assets are reflected at the lower of:
  • the carrying amount before classification as held for sale adjusted for any depreciation or amortisation that would have been recognised had the assets not been classified as held for sale; or
  • the recoverable amount at the date the classification as held for sale ceases. The recoverable amount is the amount at which the asset would have been recognised after the allocation of any impairment loss arising on the cash generating unit as determined in accordance with the group’s policy on impairment of non-financial assets.
  Any adjustment required to be made on reclassification is charged to the income statement on reclassification and included in income from continuing operations.
   
  Where the disposal group was also classified as a discontinued operation, the subsequent classification from held for sale also requires that the discontinued operation be included in continuing operations. Comparative information in the income statement and cash flow note disclosures relating to the classification as a discontinued operation is represented accordingly. Comparative information in the balance sheet is not re-presented for this change.
 

2.12

Environmental obligations

  Estimated long term environmental obligations, comprising pollution control, rehabilitation and mine closure, are based on the group’s environmental management plans in compliance with current technological, environmental and regulatory requirements.
   
  Based on disturbances to date, the net present value of expected rehabilitation cost estimates are recognised and provided for in full in the financial statements. The estimates are reviewed annually and are discounted using a pre-tax risk-free rate that is adjusted to reflect the current market assessments of the time value of money and the risks specific to the obligation.
   
  Annual changes in the provision consist of finance costs relating to the change in the present value of the provision and inflationary increases in the provision estimate, as well as changes in estimates. The present value of environmental disturbances created are capitalised to mining assets against an increase in the rehabilitation provision. If a decrease in liability exceeds the carrying amount of the asset, the excess is recognised immediately in the income statement. If the asset value is increased and there is an indication that the revised carrying value is not recoverable, an impairment test is performed in accordance with the accounting policy dealing with impairments of non financial assets. Rehabilitation projects undertaken, included in the estimates are charged to the provision as incurred. The cost of on-going current programmes to prevent and control pollution is charged against income as incurred. Over time, the liability is increased to reflect an interest element, and the capitalised cost is depreciated over the life of the related asset.
 

2.13

Environmental trust funds

  Contributions are made to the group’s trust funds, created in accordance with statutory requirements, to fund the estimated cost of pollution control, rehabilitation and mine closure at the end of the life of the group’s mines. The trusts are consolidated into the group as the group exercises full control of the trust. Income earned on investments classified as held-to-maturity is accounted for as investment income and accrues on a time proportion basis. Fair value movements on investments designated as fair value through profit or loss are reflected in the net gain/(loss) on financial instruments. The funds in the trust funds are included under restricted investments on the balance sheet.
 

2.14

Provisions

  Provisions are recognised when the group has a present legal or constructive obligation as a result of past events where it is probable that an outflow of resources embodying economic benefits will be required to settle the obligation, and a reliable estimate of the amount of the obligation can be made.
   
  The amount recognised as a provision is the present value of the best estimate of the expenditure required to settle the present obligation at balance sheet date using a pre-tax rate that reflects current market assessment of the time value of money and the risks specific to the obligation. This estimate takes into account the associated risks and uncertainties. The increase in the provision due to the passage of time is recognised as interest expense.
   
  Provisions are reviewed at each balance sheet date and adjusted to reflect the current best estimate. If it is no longer probable that an outflow of economic benefits will be required, the provision is reversed.
 

2.15

Current and deferred taxation

  The current income tax charge is calculated on the basis of the tax laws enacted or substantively enacted at the balance sheet date in the countries where the group operates and generates taxable income. Management periodically evaluates positions taken on tax returns with respect to situations in which applicable tax regulations are subject to interpretation, and establishes provisions where appropriate on the basis of amounts expected to be paid to the tax authorities.
   
  The group follows the comprehensive liability method of accounting for deferred tax using the balance sheet approach. Under this method deferred income taxes are recognised for the tax consequences of temporary differences by applying expected tax rates to the differences between the tax base of all assets or liabilities and the balance sheet carrying amount, except to the extent that a deferred tax arises from the initial recognition of an asset or liability in a transaction that is not a business combination and does not affect the accounting or taxable profit or loss at the time of the transaction. Deferred tax is charged to profit and loss, except where the tax relates to items recognised in other comprehensive income or directly in equity, in which case the tax is also recognised in other comprehensive income or directly in equity. The effect on deferred tax of any changes in tax rates is recognised in the income statement, except to the extent that it relates to items previously charged or credited directly to equity.
   
  The principal temporary differences arise from amortisation and depreciation on property, plant and equipment, provisions, post retirement benefits, unutilised tax losses and unutilised capital allowances carried forward. Deferred tax assets relating to the carry forward of unutilised tax losses and unutilised capital allowances are recognised to the extent that it is probable that future taxable profit will be available against which the unutilised tax losses and unutilised capital allowances can be utilised.
   
  Deferred income tax is provided on temporary differences arising from investments in subsidiaries, joint ventures and associates, except where the timing of the reversal of the temporary difference is controlled by the group and it is probable that the temporary difference will not reverse in the foreseeable future.
   
  Deferred income tax assets and liabilities are offset when there is a legally enforceable right to offset current tax assets against current tax liabilities and when the deferred income tax assets and liabilities relate to income taxes levied by the same taxation authority on either the taxable entity or different taxable entities where there is an intention to settle the balances on a net basis.
 

2.16

Employee benefits

   (i) Pension and provident plans are funded through annual contributions. The group pays fixed contributions into a separate entity in terms of the defined contribution pension and provident plans which are charged to the income statement in the year to which they relate. The group’s liability is limited to its annually determined contributions and has no further liability, either legal or constructive, if the fund does not hold sufficient assets to pay all employees the benefits relating to employee service in the current and prior periods.
     
   (ii) Medical plans: The group provides medical cover to current employees and certain retirees through certain funds. The medical accounting costs for the defined benefit plan are assessed using the projected unit credit method. The health care obligation is measured as the present value of the estimated future cash outflows using high quality government bond interest rates consistent with the terms and risks of the obligation less the fair value of plan assets together with adjustments for unrecognised past service costs.
Actuarial gains and losses as a result of these valuations are recognised in the income statement at revaluation date. The future liability for current and retired employees and their dependents is accrued in full based on actuarial valuations obtained annually.
     
   (iii) Equity compensation benefits: The group operates an equity-settled, share-based payments plan, where the group grants share options to certain employees in exchange for services received. Equity share-based payments are measured at fair value that includes market performance conditions but excludes the impact of any service and non market performance conditions of the equity instruments at the date of the grant. The share-based payments are expensed over the vesting period, based on the group’s estimate of the shares that are expected to eventually vest. The group used an appropriate option pricing model in determining the fair value of the options granted. Non-market vesting conditions are included in assumptions about the number of options that are expected to vest. At each balance sheet date, the estimates of the number of options that are expected to become exercisable are revised. The impact of the revision of original estimates, if any, are recognised in the income statement, with a corresponding adjustment to equity. The proceeds received net of any directly attributable transaction costs are credited to share capital (nominal value) and share premium when the options are exercised.
     
   (iv) Termination benefits are payable when employment is terminated before the normal retirement date, or whenever an employee accepts voluntary redundancy in exchange for these benefits. The group recognises termination benefits when it is demonstrably committed to either: terminating the employment of current employees according to a detailed formal plan without possibility of withdrawal; or providing termination benefits as a result of an offer made to encourage voluntary redundancy. Benefits falling due more than 12 months after balance sheet date are discounted to present value.
     
   (v) Leave pay: The group accrues the cost of leave days granted to employees during the period in which the leave days accumulate.
 

2.17

Share capital

  Ordinary shares are classified as equity. Incremental costs directly attributable to the issue of new shares or options are shown in equity as a deduction, net of tax, from the proceeds.
 

2.18

Leases

  Leases in which a significant portion of the risks and rewards of ownership are retained by the lessor are classified as operating leases. Payments made under operating leases (net of any incentives received from the lessor) are charged to the income statement on a straight-line basis over the period of the lease.
   
  For the group’s policy on finance leases, refer to note 2.5 (v).
 

2.19

Revenue recognition

   (i) Revenue arising from gold sales is recognised when the price is determinable, the product has been delivered in accordance with the terms of the contract, the significant risks and rewards of ownership have been transferred to the customer and collection of the sales price is reasonably assured. These criteria are typically met when the gold arrives at the refinery.
     
    Revenue further excludes value-added tax. Revenues from silver and other by-products sales are credited to production costs as a by-product credit.
     
   (ii)Interest income: Interest is recognised on a time proportion basis, taking into account the principal outstanding and the effective rate over the period to maturity, when it is determined that such income will accrue to the group.
     
   (iii)Dividend income is recognised when the shareholder’s right to receive payment is established. This is recognised at the last date of registration.
 

2.20

Dividends declared

  Dividends declared are recognised in the period in which they are approved by the board of directors. Dividends are payable in South African rands.