Kuma Property

Overview

The 100% owned Kuma Property spans 45 km² and hosts a drill-ready porphyry target with the potential for a large-scale system, comparable to the Panguna Mine (19.3 Moz Au & 5.3 Mt Cu)¹. Surface exploration has identified a kilometer-scale lithocap, while grab samples have returned high-grade values of up to 11.7% Cu and 13.5 g/t Au, confirming strong mineralization.

Bougainville Copper Ltd. Annual Report, 2016 (1.5 Mt containing 16.1 Moz Au at 0.33 g/t and 4.6 Mt Cu at 0.3 % Indicated, 300 Mt containing 3.2 Moz Au 0.4 g/t and 0.7 Mt Cu Inferred)

Location and Infrastructure

The Kuma property lies 37 km to the southeast of the capital city Honiara on the southern side of Guadalcanal Island, Solomon Islands. The property benefits from year-round access and drilling potential, 20km from Goldridge producing mine (power supply and mill), and boarders the ocean for excellent shipping and transport potential. Kuma is easily accessible via daily flights to Honiara with a 37 km helicopter ride or 155 km boat to the property.

Geology and Mineralization

Miocene Suta Volcanics have been mapped over the majority of the Kuma Property intruded by diorites of the Koloula Complex. Mbirao Group mafic and ultra-mafic basement rocks are present on the northeast portion of the property. Initial exploration at the Kuma property began in the 1990s, with the identification of massive, oxidized boulders, which were subsequently traced upstream to Alemba Creek in 2007 leading to the delineation of the Kuma prospect. Between 2007 and 2019, exploration efforts included soil and rock geochemical sampling, geological and alteration mapping, and airborne geophysical surveys. Hyperspectral analysis defined a >2 km lithocap with well-developed phyllic, argillic, and advanced argillic alteration assemblages, indicative of a high-sulphidation epithermal to porphyry-style system. Geochemical data revealed kilometer-scale anomalies in both gold and copper within the lithocap with high-grade values up to up to 11.7% Cu and 13.5 g/t Au, highlighting significant, untested mineral potential.

2026 Drilling

The 2026 drill program at Kuma marks the first-ever drilling campaign on the project and represents a major milestone in advancing the Oceania Project in the Solomon Islands. The fully funded inaugural program is designed to test multiple high-priority copper-gold targets identified through extensive geological mapping, geophysical surveys, and surface sampling completed over the past year.

The program is expected to comprise approximately 2,000–3,000 metres of drilling, with flexibility for expansion based on results. Drilling is focused on several zones exhibiting strong geophysical and geochemical signatures associated with large-scale porphyry and epithermal mineral systems, as Sankamap begins systematically evaluating the broader discovery potential across the Kuma Property.

Maps & Figures

Kuma 2 — Gold and Molybdenum Samples Over RTP Magnetics on the Kuma Property

Cu Ppm In Rock Samples — Drainage & Float

Kuma 4 — Cu (ppm) in Rock Samples Coincident with Gold Over Mapped Geology

Kuma Conceptual Exploration Model V2025 02 20 — Conceptual Exploration Model

Image Gallery

Kuma Gallery 1 The Sankamap Team On A Recent Site Visit, Close To The Kuma Project — The Sankamap team on a recent site visit, close to the Kuma Project

Kuma 2 Kuma Ceo John Florek 2 — CEO John Florek investigating mineralized outcrop at Kuma property during a recent site visit

Kuma 3 Access To The Kuma Property — Access to the Kuma property is from Honiara (capital city of the Solmon Islands) via helicopter (just 15 minutes)

View Of The Kuma River From Above — View of the Kuma River from above!

Float Samples — Float samples show a variety of textures, including breccias and porphyritic rock with quartz stockwork.

Exploration Manager Krystle Adair Training Locals To Take Rock Samples — Exploration Manager Krystle Adair training locals to take rock samples