ORION MINERALS LTD DISCLOSURECurrent Reports (8-K / ad hoc)

Quarterly Activities Report

Orion Minerals Limited www.orionminerals.com.au Incorporated in the Commonwealth of Australia Level 27, 120 Collins Street, Melbourne, Victoria 3000 ASX Code: ORN ACN: 098 939 274 JSE Code: ORN Ordinary shares on issue: 8,954m I Options on issue: 724m ISIN: AU000000ORN1 ASX/JSE RELEASE: 31 July 2026 June 2026 Quarterly Activities Report HIGHLIGHTS ➢ Glencore financing and offtake: Substantive progress made during the Quarter on satisfying the conditions precedent related to the Glencore plc US$250 million financing and offtake agreements entered into earlier this year. Such progress is expected to allow Tranche A of the financing to become unconditional by the end of August 2026, after which construction of the Uppers can commence. The progress includes: o approval by the South African Reserve Bank has been received; o the intercreditor agreement to be entered into between Glencore and Triple Flag Precious Metals is in an advanced form, subject to execution; and o the offtake agreements to be entered into with Glencore are in final form, subject to execution. ➢ PCZM focused on project execution: Prieska construction readiness materially advanced through completion of project execution, planning, contractor selection and value engineering initiatives. ➢ Okiep Copper Project optimisation and drilling: Good progress has been made with the optimisation of the Flat Mines 2025 DFS. High-grade copper assays received during the Quarter from Flat Mine North and Flat Mine East which continue to support resource optimisation, including: o OFMED158: 3.96m at 4.64% Cu, including 0.95m at 14.19% Cu from 322.69m down-hole. o OFMED157: 7.88m at 9.24% Cu including 3.33m at 17.12% Cu from 311.26m down-hole. o Flat Mine East intercepts in holes OFMED157 and OFMED158 confirm the down-dip continuity of the FME lower zone, where significant mineralisation was previously reported in OFMED154, including assays of 15.00m at 4.80% Cu and 9.27m at 3.01% Cu within 78.00m at 1.57% Cu. o Significantly, OFMED154 is located 50m along strike to the east from previously reported high- grade copper mineralisation in hole OFMED153, which returned 49.35m at 5.05% Cu including 21.66m at 9.41% Cu. ➢ Capital Raising: $15.4 million (~ZAR181 million) capital raising completed in June 2026, with funds raised to be used to support project