Resources and Reserves

Mineral Resource Estimate as at 1 January 2026 (Endurance Mining)

2026 Updated JORC Mineral Resource Estimate for Abra Project

JORC Resource Category	Tonnes (Mt)	Lead (%)	Silver (g/t)	Lead Metal (kt)	Silver Metal (Moz)
Measured	7.3	7.8	29.8	600	7.0
Indicated	10.4	6.9	14.7	700	4.9
Inferred	13.5	7.0	15.3	900	6.6
Total	31.1	7.2	18.5	2,200	18.5

Endurance Mining acknowledges the review and endorsement of the 2026 Mineral Resource Estimate completed by Entech Pty Ltd on the Abra Project to JORC (2012) standards.

Note: Estimated using the ordinary kriging method and reported at a 5.0% lead cut-off grade. Tonnages are rounded to the nearest 100,000t, lead grades and silver grades to one decimal place. Quantities may not total correctly due to rounding.

The quantities and grades reported above pertaining to the 2026 Abra Mineral Resource Estimate are based on information and data compiled by Mr David Allmark who is a Member of the Australasian Institute of Mining and Metallurgy and has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he has undertaken to qualify as a Competent Person as defined in the 2012 edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (JORC Code). Mr Allmark is a full-time employee of Endurance Mining Pty Ltd and consents to the inclusion in this report of the matters based on his information in the form and context in which it appears.

Ore Reserve Estimate as at 30 June 2026 (Endurance Mining)

2026 Updated JORC Ore Reserve Estimate for Abra Project

JORC Resource Category	Tonnes (Mt)	Lead (%)	Silver (g/t)	Lead Metal (kt)	Silver Metal (Moz)	NSR (A$/t)
Proved	2.5	6.1	33.3	148.0	2.6	169.7
Probable	3.2	6.3	14.7	204.8	1.5	153.6
Total Ore Reserve	5.7	6.2	22.7	352.8	4.1	160.5

The effective date of the Ore Reserve stated in this report is 30 June 2026. The signing Competent Person for the Ore Reserve, and the technical author of the mining engineering work on which it is based, is Alonso Gonzales, BEng (Mining), MAusIMM, of MOS Mining Consultancy. The Competent Person has the experience relevant to the style of mineralisation, the type of deposit under consideration, and the activity being undertaken, to qualify as a Competent Person as defined by the 2012 Edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (the JORC Code).

The Competent Person has visited the Abra Mine on multiple occasions during 2025 and is familiar with the deposit, the underground workings, and the Company’s operating practices from direct observation. The Competent Person is an independent consultant engaged by Abra Mining Pty Ltd and has no material interest in the Abra Mining Project. The Competent Person consents to the inclusion of the Ore Reserve statement and the supporting material in this report, in the form and context in which it appears, and has signed the certificate attached as Appendix A.

The Ore Reserve has been estimated and reported in accordance with the JORC Code (2012 Edition). Table 1 Section 4. — the material-assumption disclosure required for Ore Reserves — is presented in full at Appendix B.