Sunstone Metals Annual Report 2026

From the matters communicated with the directors, we determine those matters that were of most significance in the audit of the financial report of the current period and are therefore the key audit matters. We describe these matters in our auditor’s report unless law or regulation precludes public disclosure about the matter or when, in extremely rare circumstances, we determine that a matter should not be communicated in our report because the adverse consequences of doing so would reasonably be expected to outweigh the public interest benefits of such communication. REPORT ON THE REMUNERATION REPORT Opinion on the Remuneration Report We have audited the Remuneration Report included in pages 28 to 34 of the directors’ report for the year ended 30 June 2026. In our opinion, the Remuneration Report of Sunstone Metals Limited for the year ended 30 June 2026 complies with section 300A of the Corporations Act 2001. Responsibilities The directors of the Company are responsible for the preparation and presentation of the Remuneration Report in accordance with section 300A of the Corporations Act 2001. Our responsibility is to express an opinion on the Remuneration Report, based on our audit conducted in accordance with Australian Auditing Standards. HLB Mann Judd A B Narayanan Chartered Accountants Partner Brisbane, Queensland 18 September 2026 Independent Auditor’s Report continued 70 Sunstone Metals Limited Annual Report 2026

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