105 Westgold Resources Limited Annual Report 2022 A member firm of Ernst & Young Global Limited Liability limited by a scheme approved under Professional Standards Legislation Page 4 Why significant How our audit addressed the key audit matter in respect of such obligations (refer to Note 22 of the financial report). Estimating the costs associated with these future activities requires considerable judgment in relation to factors such as timing of the rehabilitation, the costs associated with the rehabilitation activities and economic assumptions such as discount rates and inflation rates. Accordingly, this was considered to be a key audit matter. • Assessed the qualifications, competence and objectivity of the Group’s experts, the work of whom, formed the basis of the Group’s rehabilitation cost estimates. • With the assistance of our subject matter specialists, we assessed the appropriateness of the rehabilitation cost estimates • Tested the Group’s calculation of the present values of the rehabilitation liabilities considering the estimated timing of when the cash flows will be incurred by reference to the most appropriate inflation and discount rates. • Assessed the adequacy of the Group's disclosures in the financial report relating to rehabilitation obligations. Information other than the financial report and auditor’s report thereon The directors are responsible for the other information. The other information comprises the information included in the Company’s 2022 annual report other than the financial report and our auditor’s report thereon. We obtained the corporate directory, the directors’ report and the letter from the chair that are to be included in the annual report, prior to the date of this auditor’s report, and we expect to obtain the remaining sections of the annual report after the date of this auditor’s report. Our opinion on the financial report does not cover the other information and we do not and will not express any form of assurance conclusion thereon, with the exception of the Remuneration Report and our related assurance opinion. In connection with our audit of the financial report, our responsibility is to read the other information and, in doing so, consider whether the other information is materially inconsistent with the financial report or our knowledge obtained in the audit or otherwise appears to be materially misstated. If, based on the work we have performed on the other information obtained prior to the date of this auditor’s report, we conclude that there is a material misstatement of this other information, we are required to report that fact. We have nothing to report in this regard. Responsibilities of the directors for the financial report The directors of the Company are responsible for the preparation of the financial report that gives a true and fair view in accordance with Australian Accounting Standards and the Corporations Act 2001 and for such internal control as the directors determine is necessary to enable the preparation of the financial report that gives a true and fair view and is free from material misstatement, whether due to fraud or error. In preparing the financial report, the directors are responsible for assessing the Group’s ability to continue as a going concern, disclosing, as applicable, matters relating to going concern and using the
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