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Significant accounting policies (Policies) | 12 Months Ended
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Jun. 30, 2022
Significant accounting policies |
Basis of preparation of financial results | Basis of preparation of financial results The consolidated financial statements are prepared using the historic cost convention except that, certain items, including derivative instruments, financial assets at fair value through profit or loss and financial assets designated at fair value through other comprehensive income, are stated at fair value. The consolidated financial results are presented in rand, which is Sasol Limited’s functional and presentation currency, rounded to the nearest million. The consolidated financial statements are prepared on the going concern basis. Climate change Climate change is a defining challenge of our time, with impacts threatening our critical ecosystems, habitats and resources. Sasol supports the Paris Agreement and its calls for higher ambition to reduce the impact of emissions on the planet. We have deepened our commitment to this cause through our updated and newly-developed roadmaps, targets and ambition for the short, medium and long term. In September 2021, we launched our 2050 net zero emissions ambition and Future Sasol strategy, which places us on a trajectory towards a significantly reduced GHG emissions profile. We have set a target to achieve a 30% reduction of scope 1 and 2 emissions for our Energy and International Chemicals business and a 20% emission reduction from the use of energy products for our Energy business by 2030 as we progress towards our Net Zero ambition by 2050 for all operations. Where reasonable and supportable, management has considered the impact of these 2030 targets on a number of key estimates within the financial statements including the estimates of future cash flows used in impairment assessments of non-current assets (refer to note 9), useful lives of property, plant and equipment (refer to note 19), capital commitments (refer to note 19), the estimates of future profitability used in our assessment of the recoverability of deferred tax assets (refer to note 14) and the timing and amount of environmental obligations (refer to note 32). IBOR reform A fundamental reform of major interest rate benchmarks is being undertaken globally, including the replacement of some interbank offered rates (IBORs) with alternative nearly risk-free rates (referred to as ‘IBOR reform’). The Group’s remaining exposure to IBORs arise from the US Dollar-denominated term loan and revolving credit facilities which reference the variable 3-month US dollar London Interbank Overnight Rate (LIBOR). On 29 September 2021 the Financial Conduct Authority (FCA) confirmed that it expects that the 3-month US dollar settings will continue to be published based on the current ‘panel bank’ LIBOR methodology, and on a representative basis, until end-June 2023. ​
1 | Statement of compliance continued
As a result, the contractual arrangements relating to the term loan and revolving credit facilities were amended to replace the US dollar LIBOR with the Secured Overnight Financing Rate (SOFR) effective 15 March 2022. The transition also entailed the addition of a fixed credit adjustment spread to the SOFR and new fallback clauses. The fixed credit adjustment spread is based on the rate published by Bloomberg Index Services Limited following the FCA‘s Cessation Announcement on 5 March 2021. The Group has applied the relief of ‘Interest Rate Benchmark Reform – Phase 2 Amendments to IFRS 9, IAS 39, IFRS 7, IFRS 4 and IFRS 16’ (IBOR reform Phase 2) to these contract amendments. The reliefs apply upon the transition of a financial instrument from an IBOR to a risk-free-rate (RFR). Changes to the basis for determining contractual cash flows as a result of interest rate benchmark reform are required as a practical expedient to be treated as changes to a floating interest rate, provided that the transition from the IBOR benchmark rate to RFR takes place on an economically equivalent basis. The group entered into seven interest rate swaps in July 2019 to hedge its exposure to the variable USD LIBOR. The interest rate swaps were designated as hedging instruments in a cash flow hedge. Effective 15 March 2022, two of the swaps were transitioned to SOFR on the same basis as for the above debt instruments. The group applied the reliefs provided by IBOR reform Phase 2 that allow the Group’s hedging relationships to continue upon the replacement of an existing interest rate benchmark with an RFR. For the remaining swaps, the Phase 1 amendments allowed hedge accounting to continue for affected hedges during the period of uncertainty before the hedged items or hedging instruments are amended as a result of the interest rate benchmark reform. Hedge ineffectiveness arising from the impacts of the reform was immaterial and has been fully recognised in profit or loss. In June 2022, all of the interest rate swaps were terminated. Refer to note 39. As at 30 June 2022 the group has no remaining exposure to LIBOR. The group also has exposure to the Johannesburg Interbank Average Rate (JIBAR). The South African Reserve Bank has indicated their intention to move away from JIBAR and to create an alternative reference rate for South Africa. This reform is at various stages globally, and a suitable alternate for South Africa is only expected to be announced in a few years' time. Accordingly, there is uncertainty surrounding the timing and manner in which the transition would occur and how this would affect various financial instruments held by the group. The group's corporate treasury function monitors and manages the group's transition to alternative rates and evaluates the extent to which contracts reference IBOR cash flows, whether such contracts will need to be amended as a result of IBOR reform and how to manage communication about IBOR reform with counterparties. The group's corporate treasury function reports to the board of directors and collaborates with other business functions as needed. Accounting policies The accounting policies applied in the preparation of these consolidated financial statements are in terms of IFRS and are consistent with those applied in the consolidated annual financial statements for the year ended 30 June 2021. These accounting policies are consistently applied throughout the group. ​
1 | Statement of compliance continued
Reportable irregularity raised by independent auditor A management review was commissioned following the revisions to the Energy production volume forecast issued on 14 December 2021. The objective of the independent review was to assess the current governance framework in place over the production volume forecasting process, integrated planning and performance management process within the Energy business and the resultant input into the forecast process, the effectiveness thereof (including a detailed root cause analysis) and recommendations for improvement. Sasol’s independent auditor, PricewaterhouseCoopers Incorporated (PwC), reported a reportable irregularity as defined in the Auditing Profession Act number 26 of 2005 (RI) to the Independent Regulatory Board for Auditors in South Africa. PwC has concluded that the act or omission has been remediated, is no longer continuing and that adequate steps have been taken for the prevention or recovery of any loss as a result thereof. The RI had no impact on the financial results for the six months ended 31 December 2021. PwC expressed an unmodified review opinion on the condensed consolidated interim financial statements for the six months ended 31 December 2021 and unmodified audit opinion at 30 June 2022. The RI pertained to the revision to the Energy production volume forecast. The Board has put the necessary corrective actions in place including, but not limited to, structural changes and enhanced internal controls and governance processes, and has concluded that the RI has been closed. Accounting standards, amendments and interpretations issued which are relevant to the group, but not yet effective The group continuously evaluates the impact of new accounting standards, amendments to accounting standards and interpretations. It is expected that where applicable, these standards and amendments will be adopted on each respective effective date as indicated below. The new accounting standards and amendments to accounting standards issued which are relevant to the group, but not yet effective on 30 June 2022, include: Amendment to IAS 16 ‘Property, plant and equipment’ The amendment prohibits deducting from the cost of an item of property, plant and equipment any proceeds from selling items produced while bringing that asset to the location and condition necessary for it to be capable of operating in the manner intended by management. Instead, an entity recognises the proceeds from selling such items, and the cost of producing those items, in profit or loss. The amendments are effective for the group’s reporting period beginning on 1 July 2022 and will be applied retrospectively to items of property, plant and equipment that are brought to the location and condition necessary for them to be capable of operating in the manner intended by management on or after the beginning of the earliest period presented in the financial statements in which the group first applies the amendments. The amendments are not expected to result in a material restatement of previously reported amounts. ​
1 | Statement of compliance continued
Amendments to IAS 37 ‘Provisions, Contingent Liabilities and Contingent Assets’ The amendments specify which costs an entity needs to include when assessing whether a contract is onerous or loss-making. The amendments apply a ‘directly related cost approach’. The costs that relate directly to a contract to provide goods or services include both incremental costs (e.g. the costs of direct labour and materials) and an allocation of costs directly related to contract activities (e.g. depreciation of equipment used to fulfil the contract). The amendments are effective for the group’s reporting period beginning on 1 July 2022. The effect of the implementation of the standard will not have a material impact on the group’s results. IFRS 17 ‘Insurance Contracts’ IFRS 17 supersedes IFRS 4 ‘Insurance Contracts’ which currently permits a wide variety of practices in accounting for insurance contracts. The overall objective of IFRS 17 is to provide an accounting model for insurance contracts that is more useful and consistent for insurers. IFRS 17 applies to all types of insurance contracts (i.e. life, non-life, direct insurance and re-insurance) regardless of the type of entities that issue them, as well as to certain guarantees and financial instruments with discretionary participation features. A few scope exceptions will apply. IFRS 17 is effective for the group’s reporting period starting on 1 July 2023, with comparative figures required. The effect of the implementation of the new standard is ongoing but is not expected to have a material impact on the group’s results. Amendments to IAS 1 ‘Presentation of Financial Statements’ The amendments provide guidance on the classification of liabilities as current or non-current in the statement of financial position and does not impact the amount or timing of recognition of any asset, liability, income or expenses, or the information that entities disclose about those items. The amendments clarify that the classification of liabilities as current or non-current should be based on rights that are in place at the end of the reporting period which enable the reporting entity to defer settlement by at least twelve months. The amendments further make it explicit that classification is unaffected by expectations about whether an entity will exercise its right to defer settlement of a liability. The amendments are effective for the group from 1 July 2023, will be applied retrospectively and are not expected to significantly impact the group.
Turnover | Revenue from contracts with customers is recognised when the control of goods or services has transferred to the customer through the satisfaction of a performance obligation. Group performance obligations are satisfied at a point in time and over time, however the group mainly satisfies its performance obligations at a point in time. For further information on revenue recognition, refer to Segment information on pages 11 to 13.
2 | Turnover continued
Revenue recognised reflects the consideration that the group expects to be entitled to for each distinct performance obligation after deducting indirect taxes, rebates and trade discounts and consists primarily of the sale of fuels,oil, natural gas and chemical products, services rendered, license fees and royalties. The group allocates revenue based on stand-alone selling prices. The group enters into exchange agreements with the same counterparties for the purchase and sale of inventory that are entered into in contemplation of one another. When the items exchanged are similar in nature, these transactions are combined and accounted for as a single exchange transaction. The exchange is recognised at the carrying amount of the inventory transferred. Revenue from arrangements that are not considered contracts with customers, mainly pertaining to franchise rentals, use of fuel tanks and fuel storage, is presented as revenue from other contracts. The period between the transfer of the goods and services to the customer and the payment by the customer does not exceed 12 months and the group does not adjust for time value of money.
Remeasurement items affecting operating profit | Remeasurement items are amounts recognised in profit or loss relating to any change (whether realised or unrealised) in the carrying amount of non-current assets or liabilities that are less closely aligned to the normal operating or trading activities of the group such as the impairment of non-current assets, profit or loss on disposal of non-current assets including businesses and equity accounted investments, and scrapping of assets. The group’s non-financial assets, other than inventories and deferred tax assets, are reviewed at each reporting date or whenever events or changes in circumstances indicate that the carrying amount may not be recoverable, to determine whether there is any indication of impairment. An impairment test is performed on all goodwill, intangible assets not yet in use and intangible assets with indefinite useful lives at each reporting date. The recoverable amount of an asset or cash generating unit is defined as the amount that reflects the greater of the fair value less costs of disposal and value-in-use that can be attributed to an asset as a result of its ongoing use by the entity. Value-in-use is estimated using a discounted cash flow model. The future cash flows are adjusted for risks specific to the asset and is adjusted where applicable to take into account any specific risks relating to the country where the asset or cash-generating unit is located. The rate applied in each country is reassessed each year. The recoverable amount may be adjusted to take into account recent market transactions for a similar asset. Some assets are an integral part of the value chain but are not capable of generating independent cash flows because there is no active market for the product streams produced from these assets, or the market does not have the ability to absorb the product streams produced from these assets or it is not practically possible to access the market due to infrastructure constraints that would be costly to construct. Product streams produced by these assets form an input into another process and accordingly do not have an active market. These assets are classified as corporate assets in terms of IAS 36 when their output supports the production of multiple product streams that are ultimately sold into an active market. The group’s corporate assets are allocated to the relevant cash-generating unit based on a cost or volume contribution metric. Costs incurred by the corporate asset are allocated to the appropriate cash generating unit at cost. If there is an indication that a corporate asset may be impaired, then the recoverable amount is determined for the cash-generating unit to which the corporate asset belongs. In Southern Africa, the coal value chain starts with feedstock mined in Secunda and Sasolburg and continues along the integrated processes of the operating business units, ultimately resulting in fuels and chemicals-based product lines. Similarly, the gas value chain starts with the feedstock obtained in Mozambique and continues along the conversion processes in Secunda and Sasolburg, ultimately resulting in fuels and chemicals-based product lines. The groups of assets which support the different product lines, including corporate asset allocations, are considered to be separate cash-generating units. In the US, the ethylene value chain results in various chemicals-based product lines, sold into active markets. The assets which support the different chemicals-based product lines, including corporate asset allocations, are considered to be separate cash-generating units. ​
9 | Remeasurement items affecting operating profit continued
In Europe, the identification of separate cash-generating units is based on the various product streams that have the ability to be sold into active markets by the European business units. Certain products are sometimes produced incidentally from the main conversion processes and can be sold into active markets. When this is the case, the assets that are directly attributable to the production of these products, are classified as separate cash-generating units. The cost of conversion of these products is compared against the revenue when assessing the asset for impairment. Exploration assets are tested for impairment when development of the property commences or whenever facts and circumstances indicate impairment. An impairment loss is recognised for the amount by which the exploration assets carrying amount exceeds their recoverable amount. When the Group loses control over a subsidiary, it derecognises the assets and liabilities of the subsidiary, and any related non-controlling interest and other components of equity. Any resulting gain or loss is recognised in profit or loss. Any interest retained in the former subsidiary is measured at fair value when control is lost. Any gain or loss on disposal will comprise that attributed to the portion disposed of and the remeasurement of the portion retained.
Disposal group held for sale | A non-current asset or disposal group (a business grouping of assets and their related liabilities) is designated as held for sale 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 its fair value and the disposal will be completed within one year from classification. Where a disposal group held for sale will result in the loss of control or joint control of a subsidiary or joint operation, respectively, all the assets and liabilities of that subsidiary or joint operation are classified as held for sale, regardless of whether a non-controlling interest in the former subsidiary or an ongoing interest in the joint operation is to be retained after the sale. Where a disposal group held for sale will result in the loss of joint control of a joint venture or significant influence of an associate, the full investment is classified as held for sale. Equity accounting ceases from the date the joint venture or associate is classified as held for sale. Before classification of a non-current asset or disposal group as held for sale, it is reviewed for impairment. The impairment loss charged to the income statement is the excess of the carrying amount of the non-current asset over its expected fair value less costs to sell. No depreciation or amortisation is provided on non-current assets from the date they are classified as held for sale.
Income tax charge | The income tax charge is determined based on net income before tax for the year and includes current tax, deferred tax and dividend withholding tax. The current tax charge is the tax payable on the taxable income for the financial year applying enacted or substantively enacted tax rates and includes any adjustments to tax payable in respect of prior years. ​ 14Deferred tax continued Deferred tax is provided for using the liability method, on all temporary differences between the carrying amount of assets and liabilities for accounting purposes and the amounts used for tax purposes and on any tax losses using enacted or substantively enacted tax rates at the reporting date that are expected to apply when the asset is realised or liability settled. The decrease in the South African corporate tax rate is considered substantively enacted and is effective from 1 July 2022. Deferred tax assets and liabilities are offset when the related income taxes are levied by the same taxation authority, there is a legally enforceable right to offset and there is an intention to settle the balances on a net basis.
Treasury shares | When Sasol Limited’s shares are repurchased by a subsidiary, the amount of consideration paid, including directly attributable costs, is recognised as a deduction from shareholders’ equity. Repurchased shares are classified as treasury shares and are disclosed as a deduction from total equity. Where such shares are subsequently reissued, any consideration received is included in the statement of changes in equity.
Long-term debt | Debt, which constitutes a financial liability, includes short-term and long-term debt. Debt is initially recognised at fair value, net of transaction costs incurred and is subsequently stated at amortised cost. Debt is classified as short-term unless the borrowing entity has an unconditional right to defer settlement of the liability for at least 12 months after the reporting date. Debt is derecognised when the obligation in the contract is discharged, cancelled or has expired. Premiums or discounts arising from the difference between the fair value of debt raised and the amount repayable at maturity date are charged to the income statement as finance expenses based on the effective interest rate method. A debt modification gain or loss is recognised immediately when a debt measured at amortised cost has been modified.
Leases | At contract inception all arrangements are assessed to determine whether it is, or contains, a lease. At the commencement date of the lease, the group recognises lease liabilities measured at the present value of lease payments to be made over the lease term. The lease payments include:
| ● | fixed payments (including in-substance fixed payments) less any lease incentives receivable;
| ● | variable lease payments that depend on an index or a rate;
| ● | amounts expected to be paid under residual value guarantees;
| ● | the exercise price of a purchase option reasonably certain to be exercised;
| ● | payments of penalties for terminating the lease, if the lease term reflects the group exercising the option to terminate; and
| ● | lease payments to be made under reasonably certain extension options.
17 | Leases continued
Variable lease payments that do not depend on an index or a rate are recognised as expenses (unless they are capitalised as part of the cost of inventories or assets under construction) in the period in which the event or condition that triggers the payment occurs. In calculating the present value of lease payments, the group uses its incremental borrowing rate at the lease commencement date because the interest rate implicit in the lease is generally not readily determinable. The incremental borrowing rate is the rate that the group would have to pay to borrow the funds necessary to obtain an asset of similar value to the right of use asset in a similar economic environment with similar terms, security and conditions. After the commencement date, finance cost is charged to profit or loss over the lease period so as to produce a constant periodic rate of interest on the remaining balance of the liability for each period. The carrying amount of lease liabilities is remeasured if there is a modification, a change in the lease term, a change in the lease payments (e.g., changes to future payments resulting from a change in an index or rate used to determine such lease payments) or a change in the assessment of an option to purchase the underlying asset. The group applies the recognition exemptions to short-term leases (i.e., those leases that have a lease term of 12 months or less from the commencement date and do not contain a purchase option) and leases of assets that are considered to be low value. Lease payments on short-term leases and leases of low-value assets are recognised as expenses over the lease term. Right of use assets are measured at cost, less any accumulated depreciation and impairment losses, and adjusted for any remeasurement of lease liabilities. The cost of right of use assets includes:
| ● | the amount of the initial measurement of lease liability;
| ● | any lease payments made at or before the commencement date less any lease incentives received;
| ● | any initial direct costs; and
| ● | restoration costs.
Right of use assets are generally depreciated over the shorter of the asset's useful life and the lease term on a straight-line basis. If the group is reasonably certain to exercise a purchase option, the right of use asset is depreciated over the underlying asset’s useful life. The depreciation charge is recognised in the income statement unless it is capitalised as part of the cost of inventories or assets under construction. The right of use assets are also subject to impairment. Refer to the accounting policies in note 9 on Remeasurement items affecting profit or loss. Where the group transfers control of an asset to another entity (buyer-lessor) and leases that same asset back from the buyer-lessor, the group derecognises the underlying asset and recognises a right-of-use asset at the proportion of the previous carrying amount of the transferred asset that relates to the right of use retained by the group. The group also recognises a lease liability measured at the present value of all expected future lease payments with the resulting gain or loss being included in remeasurement items.
Property, Plant and Equipment | Property, plant and equipment is stated at cost less accumulated depreciation and accumulated impairment losses. Land is not depreciated. When plant and equipment comprises major components with different useful lives, these components are accounted for as separate items. Depreciation of mineral assets on producing oil and gas properties is based on the units-of-production method calculated using estimated proved developed reserves. ​
19 | Property, plant and equipment continued
Life-of-mine coal assets are depreciated using the units-of-production method and is based on proved and probable reserves assigned to that specific mine (accessible reserves) or complex which benefits from the utilisation of those assets. Other coal mining assets are depreciated on the straight-line method over their estimated useful lives. Depreciation of property acquisition costs, capitalised as part of mineral assets in property, plant and equipment, is based on the units-of-production method calculated using estimated proved reserves. Property, plant and equipment, other than mineral assets, is depreciated to its estimated residual value on a straight-line basis over its expected useful life.
Assets under construction | ASSETS UNDER CONSTRUCTION Assets under construction include land and expenditure capitalised for work in progress in respect of activities to develop, expand or enhance items of property, plant and equipment. The cost of self-constructed assets includes expenditure on materials, direct labour and an allocated proportion of project overheads. Cost also includes the estimated costs of dismantling and removing the assets and site rehabilitation costs to the extent that they relate to the construction of the asset as well as gains or losses on qualifying cash flow hedges attributable to that asset. When regular major inspections are a condition of continuing to operate an item of property, plant and equipment, and plant shutdown costs will be incurred, an estimate of these shutdown costs are included in the carrying value of the asset at initial recognition. Land acquired, as well as costs capitalised for work in progress in respect of activities to develop, expand or enhance items of property, plant and equipment are classified as part of assets under construction. Finance expenses in respect of specific and general borrowings are capitalised against qualifying assets as part of assets under construction. Where funds are borrowed specifically for the purpose of acquiring or constructing a qualifying asset, the amount of finance expenses eligible for capitalisation on that asset is the actual finance expenses incurred on the borrowing during the period less any investment income on the temporary investment of those borrowings. Where funds are made available from general borrowings and used for the purpose of acquiring or constructing qualifying assets, the amount of finance expenses eligible for capitalisation is determined by applying a capitalisation rate to the expenditures on these assets. The capitalisation rate of 4,6% (2020 – 4,9)% is calculated as the weighted average of the interest rates applicable to the borrowings of the group that are outstanding during the period, including borrowings made specifically for the purpose of obtaining qualifying assets once the specific qualifying asset is ready for its intended use. The amount of finance expenses capitalised will not exceed the amount of borrowing costs incurred.
Equity accounted investments | The financial results of associates and joint ventures are included in the group’s results according to the equity method from acquisition date until the disposal date. Associates and joint ventures whose financial year-ends are within three months of 30 June are included in the consolidated financial statements using their most recently audited financial results. Adjustments are made to the associates’ and joint ventures financial results for material transactions and events in the intervening period.
Subsidiaries | Control is obtained when Sasol is exposed, or has rights, to variable returns from its involvement with the subsidiary and has the ability to affect those returns through our power over the subsidiary. The financial results of all entities that have a functional currency different from the presentation currency of their parent entity are translated into the presentation currency. Income and expenditure transactions of foreign operations are translated at the average rate of exchange for the year except for significant individual transactions which are translated at the exchange rate ruling at that date. All assets and liabilities, including fair value adjustments and goodwill arising on acquisition, are translated at the rate of exchange ruling at the reporting date. Differences arising on translation are recognised as other comprehensive income and are included in the foreign currency translation reserve until there is a disposal of the foreign operation. When a foreign operation is disposed of in its entirety or partially such that control, significant influence or joint control is lost, the cumulative amount in the translation reserve related to that foreign operation is reclassified to profit or loss as part of the gain or loss on disposal and included in remeasurement items.
Inventories | Inventories are stated at the lower of cost and net realisable value. Cost includes expenditure incurred in acquiring, manufacturing and transporting the inventory to its present location. Manufacturing costs include an allocated portion of production overheads which are directly attributable to the cost of manufacturing such inventory. The allocation is determined based on the greater of normal production capacity and actual production. The costs attributable to any inefficiencies in the production process are charged to the income statement as incurred. By-products are incidental to the manufacturing processes, are usually produced as a consequence of the main product stream, and are immaterial to the group. Revenue from sale of by-products is offset against the cost of the main products. Cost is determined as follows:
​ | ​
Crude oil and other raw materials | First-in-first-out valuation method (FIFO)
Process, maintenance and other materials | Weighted average purchase price
Work-in-progress | Manufacturing costs incurred
Manufactured products including consignment inventory | Manufacturing costs according to FIFO
Trade and other receivables | Trade and other receivables are recognised initially at transaction price and subsequently stated at amortised cost using the effective interest rate method, less impairment losses. A simplified expected credit loss model is applied for recognition and measurement of impairments in trade receivables, where expected lifetime credit losses are recognised from initial recognition, with changes in loss allowances recognised in profit and loss. The group did not use a provisional matrix. Trade and other receivables are written off where there is no reasonable expectation of recovering amounts due. The trade receivables do not contain a significant financing component.
Trade and other payables | Trade and other payables are initially recognised at fair value and subsequently stated at amortised cost. Capital project related payables are excluded from working capital, as the nature and risks of these payables are not considered to be aligned to operational trade payables.
Cash and cash equivalents | Cash and cash equivalents comprises cash on hand, cash restricted for use, bank overdraft, demand deposits and other short-term highly liquid investments with a maturity period of three months or less at date of purchase. Cash and cash equivalents are stated at carrying amount which is deemed to be fair value. Bank overdrafts are offset against cash and cash equivalents in the statement of cash flows. Cash restricted for use comprises cash and cash equivalents which are not available for general use by the group, including amounts held in escrow, trust or other separate bank accounts.
Provisions | Estimated long-term environmental provisions, comprising pollution control, rehabilitation and mine closure, are based on the group’s environmental policy taking into account current technological, environmental and regulatory requirements. The provision for rehabilitation is recognised as and when the environmental liability arises. To the extent that the obligations relate to the construction of an asset, they are capitalised as part of the cost of those assets. The effect of subsequent changes to assumptions in estimating an obligation for which the provision was recognised as part of the cost of the asset is adjusted against the asset. Any subsequent changes to an obligation which did not relate to the initial construction of a related asset are charged to the income statement. The increase in discounted long-term provisions as a result of the passage of time is recognised as a finance expense in the income statement. The estimated present value of future decommissioning costs, taking into account current environmental and regulatory requirements, is capitalised as part of property, plant and equipment, to the extent that they relate to the construction of the asset, and the related provisions are raised. These estimates are reviewed at least annually. Deferred tax is recognised on the temporary differences in relation to both the asset to which the obligation relates to and rehabilitation provision. Termination benefits are recognised as a liability at the earlier of the date of recognition of restructuring costs or when the group is demonstrably committed, without realistic possibility of withdrawal, to a formal detailed plan to either terminate employment before normal retirement date, or to provide termination benefits as a result of an offer made to encourage voluntary redundancy. In the case of an offer to encourage voluntary redundancy, the termination benefits are measured based on the number of employees expected to accept the offer. Benefits that are expected to be wholly settled more than 12 months after the end of the reporting period are discounted to their present value.
Post-retirement benefit obligations | The group operates or contributes to defined contribution pension plans and defined benefit pension plans for its employees in certain of the countries in which it operates. These plans are generally funded through payments to trustee-administered funds as determined by annual actuarial calculations. Defined contribution pension plans are plans under which the group pays fixed contributions into a separate legal entity and has no legal or constructive obligation to pay further amounts. Contributions to defined contribution pension plans are charged to the income statement as an employee expense in the period in which the related services are rendered by the employee. ​
34 | Post-retirement benefit obligations continued
The group’s net obligation in respect of defined benefit pension plans is actuarially calculated separately for each plan by deducting the fair value of plan assets from the gross obligation for post-retirement benefits. The gross obligation is determined by estimating the future benefit attributable to members in return for services rendered to date. This future benefit is discounted to determine its present value, using discount rates based on government bonds for South African obligations, and corporate bonds in Europe and the US, that have maturity dates approximating the terms of the group’s obligations and which are denominated in the currency in which the benefits are expected to be paid. Independent actuaries perform this calculation annually using the projected unit credit method. Defined contribution members employed before 2009 have an option to purchase a defined benefit pension with their member share. This option gives rise to actuarial risk, and as such, these members are accounted for as part of the defined benefit fund and are disclosed as such. Past service costs are charged to the income statement at the earlier of the following dates:
| ● | when the plan amendment or curtailment occurs; or
| ● | when the group recognises related restructuring costs or termination benefits.
Actuarial gains and losses arising from experience adjustments and changes to actuarial assumptions, the return on plan assets (excluding amounts included in net interest on the defined benefit liability/(asset)) and any changes in the effect of the asset ceiling (excluding amounts included in net interest on the defined benefit liability/(asset)) are remeasurements that are recognised in other comprehensive income in the period in which they arise. Where the plan assets exceed the gross obligation, the asset recognised is limited to the lower of the surplus in the defined benefit plan and the asset ceiling, determined using a discount rate based on government bonds. Surpluses and deficits in the various plans are not offset. The entitlement to healthcare benefits is usually based on the employee remaining in service up to retirement age and the completion of a minimum service period. The expected costs of these benefits are accrued on a systematic basis over the expected remaining period of employment, using the accounting methodology described in respect of defined benefit pension plans above. Independent actuaries perform the calculation of this obligation annually.
Share-based payment transactions | To the extent that an entity grants shares or share options in a BEE transaction and the fair value of the cash and other assets received is less than the fair value of the shares or share options granted, such difference is charged to the income statement in the period in which the transaction becomes effective. Where the BEE transaction includes service conditions the difference will be charged to the income statement over the period of these service conditions. Trickle dividends paid to participants during the transaction term are taken into account in measuring the fair value of the award. As the funds to pay the trickle dividend are leaving the Company, a corresponding share of earnings will be allocated to the non-controlling shareholders.
Derivative financial instruments and hedging activities | DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES The group is exposed to market risks from changes in interest rates, foreign exchange rates and commodity prices. The group uses derivative instruments to hedge its exposure to these risks. All derivative financial instruments are initially recognised at fair value and are subsequently stated at fair value at the reporting date. Attributable transaction costs are recognised in the income statement when incurred. Resulting gains or losses on derivative instruments, excluding designated and effective hedging instruments, are recognised in the income statement. To the extent that a derivative instrument has a maturity period of longer than one year, the fair value of these instruments will be reflected as a non-current asset or liability. Contracts to buy or sell non-financial items (e.g. gas or electricity) that were entered into and continue to be held for the purpose of the receipt of the non‑financial items in accordance with the group’s expected purchase or usage requirements are not accounted for as derivative financial instruments. Purchase commitments relating to these contracts are disclosed in note 3. HEDGE ACCOUNTING The group continues to apply the hedge accounting requirements of IAS 39 ‘Financial Instruments: Recognition and Measurement’. ​
39 | Financial risk management and financial instruments continued
39.2 | Accounting policies continued
Where a derivative instrument is designated as a cash flow hedge of an asset, liability or highly probable forecast transaction that could affect the income statement, the effective part of any gain or loss arising on the derivative instrument is recognised as other comprehensive income and is classified as a cash flow hedge accounting reserve until the underlying transaction occurs. The ineffective part of any gain or loss is recognised in the income statement. If the hedging instrument no longer meets the criteria for cash flow hedge accounting, expires or is sold, terminated, exercised, or the designation is revoked, then hedge accounting is discontinued prospectively. If the forecast transaction results in the recognition of a non-financial asset or non-financial liability, the associated gain or loss is transferred from the cash flow hedge accounting reserve, as other comprehensive income, to the underlying asset or liability on the transaction date. If the forecast transaction is no longer expected to occur, then the cumulative balance in other comprehensive income is recognised immediately in the income statement as reclassification adjustments. Other cash flow hedge gains or losses are recognised in the income statement at the same time as the hedged transaction occurs. ECONOMIC HEDGES When derivative instruments, including forward exchange contracts, are entered into as fair value hedges, no hedge accounting is applied. All gains and losses on fair value hedges are recognised in the income statement.

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- Definition The description of the entity's accounting policy for borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 117 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_117_b&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The description of the entity's accounting policy for construction in progress. [Refer: Construction in progress] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 117 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_117_b&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The description of the entity's accounting policy for derivative financial instruments and hedging. [Refer: Financial instruments, class [member]; Derivatives [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 117 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_117_b&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The description of the entity's accounting policy for employee benefits. Employee benefits are all forms of consideration given by an entity in exchange for services rendered by employees or for the termination of employment. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 117 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_117_b&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The description of the entity's accounting policy for the impairment of assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 117 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_117_b&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The description of the entity's accounting policy for income tax. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 117 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_117_b&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The description of the entity's accounting policy for investment in associates and joint ventures. [Refer: Associates [member]; Joint ventures [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 117 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_117_b&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The description of the entity's accounting policy for leases. A lease is an agreement whereby the lessor conveys to the lessee in return for a payment or series of payments the right to use an asset for an agreed period of time. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 117 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_117_b&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The description of the entity's accounting policy for measuring inventories. [Refer: Inventories] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 2 -IssueDate 2021-01-01 -Paragraph 36 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=2&code=ifrs-tx-2021-en-r&anchor=para_36_a&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The description of the entity's accounting policy for non-current assets or disposal groups classified as held for sale. [Refer: Non-current assets or disposal groups classified as held for sale] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 117 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_117_b&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The description of the entity's accounting policy for property, plant and equipment. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 117 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_117_b&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The description of the entity's accounting policy for provisions. [Refer: Provisions] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 117 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_117_b&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The description of the entity's accounting policy for recognising revenue. [Refer: Revenue] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 117 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_117_b&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The description of the entity's accounting policy for transactions in which the entity: (a) receives goods or services from the supplier of those goods or services (including an employee) in a share-based payment arrangement; or (b) incurs an obligation to settle the transaction with the supplier in a share-based payment arrangement when another group entity receives those goods or services. [Refer: Share-based payment arrangements [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 117 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_117_b&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The description of the entity's accounting policy for subsidiaries. [Refer: Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 117 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_117_b&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The description of the entity's accounting policy for trade and other payables. [Refer: Trade and other payables] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 117 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_117_b&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The description of the entity's accounting policy for trade and other receivables. [Refer: Trade and other receivables] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 117 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_117_b&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The description of the entity's accounting policy for treasury shares. [Refer: Treasury shares] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 117 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_117_b&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The description of the entity's accounting policy used to determine the components of cash and cash equivalents. [Refer: Cash and cash equivalents] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 46 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_46&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The disclosure of the basis used for the preparation of the financial statements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 10 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_10_e&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition Disclosure of significant accounting policies + References No definition available. + Details
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