FINANCIAL REPORT NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS for the year ended 30 June 2025 114 WESTGOLD RESOURCES LIMITED 27. SHARE-BASED PAYMENTS (CONTINUED) (d) Performance rights (Rights) (continued) The following table gives the assumptions made in determining the fair value of the rights granted in Tranche 7. Grant date 09/10/2023 09/10/2023 09/10/2023 09/10/2023 RTSR ATSR AEPS Ore Reserve Growth Expected volatility (%) 54% 54% 54% 54% Risk-free interest rate (%) 4.08% 4.08% 4.08% 4.08% Expected life of options (years) 2.75 2.75 2.75 2.75 Options exercise price ($) $0.00 $0.00 $0.00 $0.00 Share price at grant date ($) $1.43 $1.43 $1.43 $1.43 Fair value at grant date ($) $1.18 $1.17 $1.70 $1.70 The following table gives the assumptions made in determining the fair value of the rights granted in Tranche 8. Grant date 28/11/2024 28/11/2024 28/11/2024 28/11/2024 RTSR ATSR EPS Ore Reserve Growth Expected volatility (%) 55.9% 55.9% N/A N/A Risk-free interest rate (%) 4.12% 4.12% N/A N/A Expected life of rights (years) 3 3 N/A N/A Share price at grant date ($) $2.84 $2.84 $2.84 $2.84 Fair value at grant date ($) $1.95 $1.96 $2.78 $2.78 The effects of early exercise have been incorporated into the calculations by using an expected life for the option that is shorter than the contractual life based on historical exercise behaviour, which is not necessarily indicative of exercise patterns that may occur in the future. The expected volatility was determined using a historical sample of the Company’s share price over a three-year period. The resulting expected volatility therefore reflects the assumptions that the historical volatility is indicative of future trends, which may also not necessarily be the actual outcome. 28. COMMITMENTS (a) Capital commitments At 30 June 2025, the Group has capital commitments that relate principally to the purchase and maintenance of plant and equipment for its mining operations. Capital expenditure commitments 2025 $000 2024 $000 - Within one year 28,095 32,909
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