South Pacific Metals hits 12.8% Cu from outcrop at Kili Teke; massive sulphide traced 200 m

Assays confirm mineralisation within a massive sulphide unit mapped over more than 200 metres on the western margin of the Central Porphyry. Two priority target areas outside the current Mineral Resource are advancing toward drill-ready status.

Highlights

Massive sulphide unit, mapped over 200 metres and open, along a north-south fault contact on the western margin of the Central Porphyry outside of the Mineral Resource boundary strengthened by surface mapping and assays: outcrop samples returned 12.8% Cu, 0.30 g/t Au and 104 g/t Ag.

Historic trench mineralisation validated by new sampling. Eight samples collected across part of the historic trench were mineralised, averaging 0.36% Cu and 0.72 g/t Au.

Ridge Gold (Kwaki Creek area) remains a compelling geochemical target: historic soils returned up to 9,390 ppb Au (9.39 g/t Au) within a strong gold-in-soil anomaly, also elevated in tellurium, indicating a potential alkalic, Porgera-style target.Previous drilling was oriented from the north-to-south and did not effectively test the inferred south-dipping structures.

Further targeting focused at depth beneath the current Mineral Resource, where historic drilling includes 187 m at 1.10% CuEq (0.62% Cu, 0.44 g/t Au) from 501 m in KTDD022.

Additional 205 soil samples and 60 rock samples pending assay from current program.

Drill-ready targets expected in Q4 2026, ahead of a planned maiden diamond drill program.

Vancouver, British Columbia--(Newsfile Corp. - August 31, 2026) - South Pacific Metals Corp. (TSXV: SPMC) (OTCQB: SPMEF) (FSE: 6J00) (" SPMC " or the " Company ") is pleased to report first assay results and field progress from the Kili Teke Copper-Gold Project (" Kili Teke ") in Hela Province, Papua New Guinea, held 100% through the Company's wholly-owned subsidiary Kainantu Resources Limited. Kili Teke hosts a Nation