Atlantic Operations Overview

Simberi Operations Overview • 4.0Moz in Mineral Resources • 2.0Moz in Ore Reserves Northernmost island in the Tabar group of islands in the New Ireland Province, Papua New Guinea Open cut mine with a 3.5Mtpa plant (oxides) Pigibo Botlu West Sorowar North Pigibo North Botlu Pigicow Survey Hill Pigicow Simberi Life of Mine Oxide Footprint December 2022 Sorowar Patan 500m Pigiput Ti Local Grid Samat Samat Simon EC Island Sprewar Simberi Pratibo Location Pigiput 45000ME FY23 Budgeted Mine Plan FY24-FY26 Oxide Life of Mine Plan Mine Design Mined Pit Outline C Optimised Oxide Life of Mine Pils Strategy Focus Areas Extend oxide production through FY25 and into FY26 Sulphide Mineral Resource and Ore Reserve extension drilling Revisit Sulphide Expansion development plan by FY26 Prepare for investment decision with Mining Lease renewal by FY28 Status Complete Commenced Commenced FY25 activity Simberi Operations 1 14

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