Callum Spink is VP Exploration for Great Pacific Gold, where he leads discovery-focused programs across the Wild Dog, Kesar and Arau project areas in Papua New Guinea. With deep experience in PNG geology, he previously served in technical leadership roles at Porgera with Barrick Gold and at Lihir with Newcrest. Callum brings expertise in structural geology, 3D modelling, geophysics integration and drill program design. At GPAC, he is driving a modern exploration approach that combines innovative datasets, predictive targeting and strong community partnerships to advance new porphyry and epithermal opportunities in PNG.