Great Pacific Gold expands Elamaraka and Kargalio systems at Wild Dog

Vancouver, British Columbia--(Newsfile Corp. - August 13, 2026) - Great Pacific Gold Corp. (TSXV: GPAC) (OTCQX: GPGCF) (FSE: 0B3) ("Great Pacific Gold", "GPAC", or the "Company") reports new geological mapping and channel-sampling results from the Elamaraka and Kargalio vein systems (together, the "EK Target Area") within the southern Wild Dog structural corridor at its flagship Wild Dog Project in East New Britain Province, Papua New Guinea (Figure 1). The latest work has identified additional mineralized quartz-sulphide veins beyond the historically mapped areas, materially expanding the interpreted footprint of both systems and strengthening the Company's view that the southern corridor hosts multiple high-grade gold targets. The Company has also commenced its first push into the South Zone of the corridor, with earthmoving machinery advancing a new access track south of the EK Target Area and the exploration team mobilised to begin systematic work in this underexplored area.

Highlights - Elamaraka Vein System

Continuous channel sampling returned 9 m @ 4.81 g/t Au, 41.96 g/t Ag and 0.02% Cu from sulphide-rich quartz veining within the Elamaraka Vein System.

Peak assays include 26.86 g/t Au and 233.4 g/t Ag, and 8.72 g/t Au and 53.9 g/t Ag.

Separate quartz-sulphide vein exposures along the interpreted corridor returned 4.22 g/t Au (grab sample) and channel results of 1.20 g/t Au and 1.05 g/t Au , demonstrating mineralization across multiple vein occurrences.

Geological mapping identified multiple quartz-sulphide veins, significantly expanding the known footprint of the Elamaraka Vein System.

Highlights - Kargalio Vein System

Channel sampling defined approximately 6 m @ 7.29 g/t Au within a quartz-clay-sulphide vein, including 2 m @ 16.20 g/t Au across the Kargalio Vein.

A second 6 m channel interval approximately 40 m south of the main high-grade zone returned 2.