Announcement PDF Wednesday, 20 December 2023 CRUSHER COMMISSIONED AS KANMANTOO PREPARES FOR FIRST COPPER HIGHLIGHTS • Ore has successfully been processed through the dry plant, which includes the primary and secondary crushers, screening plant, conveyor belts and associated electrical and process control systems as part of the processing plant re-commissioning program. • First copper production is on track for early 2024. Figure 1 Commissioning the dry circuit Loading ore into the crusher Secondary crusher Conveying crushed ore Hillgrove Resources Limited ACN 004 297 116 Ground Floor, 5-7 King William Road, Unley SA 5061, Australia | T + 61 8 7070 1698 | E info@hillgroveresources.com.au Figure 2 Stockpiling crushed ore in preparation for copper production Stockpiling crushed ore Commenting on commissioning of the dry circuit, Hillgrove CEO and Managing Director, Lachlan Wallace said: “Commissioning the dry circuit of the processing plant is an important milestone as we prepare for first copper production early next year. Over the next few weeks, we will commence stoping from the underground and commission the wet plant.” Authorised for release by the Board of Hillgrove Resources Limited. For more information contact: Mr Lachlan Wallace CEO & Managing Director Tel: +61 (0)8 7070 1698 Mr Joe Sutanto Chief Financial Officer & Company Secretary Tel: +61 (0)8 7070 1698 Hillgrove Resources Limited ACN 004 297 116 Ground Floor, 5-7 King William Road, Unley SA 5061, Australia | T + 61 8 7070 1698 | E info@hillgroveresources.com.au