Announcement PDF Tuesday, 11 June 2024 17% INCREASE IN MAY COPPER PRODUCTION HIGHLIGHTS • May copper production was 840 tonnes, an increase of 17% from April’s production of 719 tonnes. • All operational metrics, including throughput, feed grade, and recovery continue to increase. • The operational metrics are planned to continue to ramp up and improve over the next few months. The Board of Hillgrove Resources Ltd (the “Company” or “Hillgrove”) is pleased to announce its May production of 840 tonnes. Please refer to the following table for further details, along with a comparison to production since the start of the Kanmantoo Underground operations: May 2024 April 2024 March 2024 February 2024 Milled Tonnes (dmt) 84,789 81,426 70,788 33,605 Copper Grade (%) 1.09% 0.98% 0.97% 0.89% Copper Recovery (%) 90.7% 90.0% 85.5% 79.9% Copper Produced (mt) 840 719 589 239 Commenting on the May copper production, Hillgrove CEO and Managing Director, Lachlan Wallace said: “I am pleased to report that our copper production at Kanmantoo continues to increase. Importantly, we are achieving steady increases in all key operating metrics, including production, feed grade and recovery. With the appreciation of the copper price, along with the increased production profile, it is planned that May’s revenue will exceed costs, providing the first positive period since operations commenced in June 2023. To achieve this financial outcome in less than 12 months from final investment decision is a remarkable effort by the team. We look forward to reporting the cash position and June results in the quarterly report on or around the end of July, after which we will revert to quarterly reporting in line with standard practices.” 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 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