Mineral Resources and Ore Reserves
Table 1 - Gold Mineral Resource Estimates at 30 June 2025 for Westgold Operating Mines
Table 2 - Gold Mineral Resource Estimates at 30 June 2025 for Westgold Non-Operating Projects
Table 3 - Nickel Mineral Resource Estimates at 30 June 2025 for Beta Hunt
Table 4 - Gold Ore Reserves at 30 June 2025 for Westgold Operating Mines
Table 5 - Gold Ore Reserves at 30 June 2025 for Westgold Non-Operating Projects
* Mineral Resource Estimates reported are inclusive of those Mineral Resources Estimates modified to produce the Ore Reserve.
2025 Resources and Reserves Statement
COMPETENT PERSONS STATEMENTS
Ore Reserves and Mineral Resources
The information on this page that relates to the Ore Reserves and Mineral Resources of Westgold has been extracted from the ASX announcement titled “2025 Mineral Resource Estimate and Ore Reserves" released to the ASX on 3 September 2025 and available at www.asx.com.au. In events subsequent, Westgold divested the Mt Henry-Selene project, which had associated with it a Mineral Resource of 24Mt at 1.2g/t gold for 0.9Moz contained gold and an Ore Reserve of 11.7Mt at 1.3g/t Au for 478,300oz – see ASX announcement titled “Mt Henry-Selene Gold Project Divested for $64.6M" released to the ASX on 17 December 2025 and available at www.asx.com.au. In events subsequent, Westgold spun out its Reedy and Comet projects, which had associated with it approximately 1.2Moz of JORC-compliant Mineral Resources - Refer to Valiant Gold Limited’s (ASX:VAL) Prospectus (specifically Section 2.3 and Attachment A) dated 16 February 2026 for further information regarding the Mineral Resource estimates for the Reedy and Comet Projects. In events subsequent, Westgold divested the Peak Hill project, which had associated with it a Mineral Resource of 9.4Mt at 1.6g/t gold for 481koz contained gold – see Great Boulder’s (ASX:GBR) announcement titled “TRANSFORMATIONAL ACQUISITION OF NEIGHBOURING PEAK HILL GOLD PROJECT" released to the ASX on 4 May 2026 and available at www.asx.com.au. In events subsequent, Westgold agreed to divest the Chalice project, which had associated with it a Mineral Resource of 191koz of gold at 2.7g/t – see Corazon’s (ASX:CZN) announcement titled “Chalice Gold Project acquisition and capital raising" released to the ASX on 19 May 2026 and available at www.asx.com.au. Westgold confirms that it is not aware of any new information or data that materially affects the information included in that announcement, and that all material assumptions and technical parameters underpinning the estimates in that announcement continue to apply and have not materially changed. Westgold confirms that the form and context in which the Competent Persons findings are presented have not been materially modified from that announcement.
The information on this site that relates to Westgold’s Mineral Resource Estimates is compiled by Westgold technical employees and contractors under the supervision of Mr. Jake Russell B.Sc. (Hons), who is a member of the Australian Institute of Geoscientists and who has verified, reviewed and approved such information. Mr Russell is a full-time employee of Westgold and has sufficient experience which is relevant to the styles of mineralisation and types of deposit under consideration and to the activities which he is undertaking to qualify as a Competent Person as defined in the Joint Ore Reserves Committee’s 2012 Australasian Code for Reporting of Mineral Resources and Ore Reserves (JORC Code) and as a Qualified Personas defined in the CIM Guidelines and NI 43-101. Mr. Russell is a full-time employee as General Manager – Technical Services of Westgold and, accordingly, is not independent for purposes of NI 43-101. Mr Russell consents to and approves of the inclusion on this website of the matters based on his information in the form and context in which it appears. Mr Russell is eligible to participate in short and long-term incentive plans of Westgold.
The information in this presentation that relates to Westgold’s Ore Reserve is based on information compiled by Mr. Leigh Devlin B.Eng. FAusIMM and who has verified, reviewed and approved such information. Mr. Devlin has sufficient experience which is relevant to the styles of mineralisation and types of deposit under consideration and to the activities which they are undertaking to qualify as a Competent Person as defined in the JORC Code and as a Qualified Person as defined in the CIM Guidelines and NI43-101. Mr. Devlin is full-time senior executive of Westgold and, accordingly, is not independent for purposes of NI 43-101. Mr. Devlin consents to and approves of the inclusion on this website of the matters based on his information in the form and context in which it appears. Mr. Devlin is a full-time senior executive of Westgold and is eligible to and may participate in short-term and long-term incentive plans of Westgold as disclosed in its annual reports and disclosure documents.
JORC CODE
It is a requirement of the ASX Listing Rules that the reporting of Ore Reserves and Mineral Resources in Australia comply with the JORC Code. Investors outside Australia should note that while Ore Reserve and Mineral Resource estimates of Westgold published on this website comply with the JORC Code (such JORC Code-compliant Ore Reserves and Mineral Resources being "Ore Reserves" and "Mineral Resources" respectively), they may not comply with the relevant guidelines in other countries and, in particular, do not comply with (i) National Instrument 43-101 (Standards of Disclosure for Mineral Projects) of the Canadian Securities Administrators (the "NI 43-101"); or (ii) Item 1300 of Regulation S-K, which governs disclosures of Mineral Reserves in registration statements filed with the SEC. Information contained in this presentation describing mineral deposits may not be comparable to similar information made public by companies subject to the reporting and disclosure requirements of Canadian or US securities laws.
Effect of Rounding
A number of figures, amounts, percentages, estimates and calculations of value in this presentation are subject to the effect of rounding. The actual calculation of these figures may differ from the figures set out in this presentation.
