Great Pacific Gold Updates Field Work at Wild Dog

Vancouver, British Columbia--(Newsfile Corp. - May 27, 2026) - Great Pacific Gold Corp. (TSXV: GPAC) (OTCQX: GPGCF) (FSE: 0B3) ("Great Pacific Gold", "GPAC", or the "Company") is providing additional technical detail on encouraging results from ongoing geological mapping, trenching, surface sampling and MobileMT-supported targeting completed across the Elamaraka and Kargalio vein systems (the "EK Target Area") at its flagship Wild Dog Project ("Wild Dog" or the "Project"), located on the island of New Britain, Papua New Guinea ("PNG"). The Company has three working groups at Wild Dog: 1) a diamond drilling and geology team with two rigs focused on expanding resources in the Main Zone of the >15km long epithermal vein corridor; 2) a drill pad and road construction crew building drill pads ahead of drilling, and 3) a field exploration geology team – advancing targets in preparation for future drilling campaigns. An update on drilling was recently provided on May 20, 2026, and this release elaborates on field work in the EK Target Area.

Highlights – Elamaraka Geological mapping has identified multiple subparallel quartz-sulphide vein systems developed within a broader structurally controlled hydrothermal corridor extending beyond the historically mapped Elamaraka vein. Surface bench sampling returned 2.21 g/t Au, 10.2 g/t Ag and 0.05% Cu across a 6m exposed sulphide-bearing quartz vein . Additional results from adjacent veins and parallel structures significantly expand the known footprint of hydrothermal alteration and mineralized vein system .

Mapping identified multiple structurally controlled quartz-sulphide vein arrays associated with fault-shear corridors and broad hydrothermal alteration zones considered consistent with the broader Wild Dog epithermal system. Highlights – Kargalio Geological mapping has defined a steeply dipping ~16 m wide N-S trending fault-shear corridor hosting quartz-pyrite vein material, hydrothermal brecciat