for the year ended 30 June 2023 FINANCIAL REPORT NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS 58 Westgold Resources Limited Annual Report 2023 2. S UMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED) (k) Property, plant and equipment (continued) Any gain or loss arising on derecognition of the asset (calculated as the difference between the net disposal proceeds and the carrying amount of the item) is included in the profit and loss in the period the item is derecognised. (l) Exploration and evaluation expenditure Expenditure on acquisition, exploration and evaluation relating to an area of interest is carried forward at cost where rights to tenure of the area of interest are current and: – it is expected that expenditure will be recouped through successful development and exploitation of the area of interest or alternatively by its sale; and/or – exploration and evaluation activities are continuing in an area of interest but at reporting date have not yet reached a stage which permits a reasonable assessment of the existence or otherwise of economically recoverable reserves. A regular review is undertaken of each area of interest to determine the appropriateness of continuing to carry forward costs in relation to that area of interest. Where uncertainty exists as to the future viability of certain areas, the value of the area of interest is written off to the profit and loss or provided against. Impairment The carrying value of capitalised exploration and evaluation expenditure is assessed for impairment on a regular basis or whenever impairment indicators are present. When information becomes available suggesting that the recovery of expenditure which had previously been capitalised is unlikely or that the Group no longer holds tenure, the relevant capitalised amount is written off to the profit or loss in the period when the new information becomes available. (m)Mine properties and development Expenditure on the acquisition and development of mine properties within an area of interest are carried forward at cost separately for each area of interest. This includes the costs associated with waste removal (stripping costs) in the creation of improved access and mining flexibility in relation to the ore to be mined in the future. Accumulated expenditure is amortised over the life of the area of interest to which such costs relate on a production output basis. A regular review is undertaken of each area of interest to determine the appropriateness of continuing to carry forward costs in relation to that area of interest. Impairment The carrying value of capitalised mine properties and development expenditure is assessed for impairment whenever facts and circumstances suggest that the carrying amount of the asset may exceed its recoverable amount. Recoverable amount is determined for an individual asset, unless the asset does not generate cash inflows that are largely independent of those from other assets or groups of assets. When the carrying amount of an asset or CGU exceeds its recoverable amount, the asset is considered impaired and is written down to its recoverable amount. Refer to Note 2(o) for further discussion on impairment testing performed by the Group. Stripping (waste removal) costs As part of its mining operations, the Group incurs stripping (waste removal) costs both during the development phase and production phase of its operations. Stripping costs incurred in the development phase of a mine, before the production phase commences (development stripping), are capitalised as part of the cost of constructing the mine and subsequently amortised over its useful life using a unit of production (UOP) method. The capitalisation of development stripping costs ceases when the mine/ component is commissioned and ready for use as intended by management. Stripping activities undertaken during the production phase of a surface mine (production stripping) are accounted for as set out below. After the commencement of production, further development of the mine may require a phase of unusually high stripping that is similar in nature to development phase stripping. The cost of such stripping is accounted for in the same way as development stripping (as outlined above). Production stripping is generally considered to create two benefits, being either the production of inventory or improved access to the ore to be mined in the future. Where the benefits are realised in the form of inventory produced in the period, the production stripping costs are accounted for as part of the cost of producing those inventories. Where the benefits are realised in the form of improved access to ore to be mined in the future, the costs are recognised as a non-current asset, referred to as a ‘stripping activity asset’, if the following criteria are met: – Future economic benefits (being improved access to the ore body) are probable – The component of the ore body for which access will be improved can be accurately identified – The costs associated with the improved access can be reliably measured If any of the criteria are not met, the production stripping costs are charged to profit or loss as operating costs as they are incurred. In identifying components of the ore body, the Group works closely with the mining operations personnel for each mining operation to analyse each of the mine plans. Generally, a component will be a subset of the total ore body, and a mine may have several components. The mine plans, and therefore the identification of components, can vary between mines for a number of reasons.
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