Manna Hill Project

In 2025, Cobra further expanded its portfolio by optioning the Manna Hill Copper Project in the Nackara Arc, South Australia. The project contains multiple underexplored prospects with strong potential to deliver large-scale copper discoveries.

Tier-1 Copper-Gold Potential in a Forgotten Porphyry Province

Manna Hill covers 1,855 km² in South Australia’s Nackara Arc – an underexplored region with proven porphyry-style mineralisation, offering substantial discovery upside

High-Grade, Shallow Drill Intersections Across Multiple Targets

Historic drilling at Blue Rose returned results such as

48m @ 2.2% Cu & 0.76 g/t Au and
132m @ 0.52% Cu, indicating immediate scalability and walk-up drill targets

Immediate Value Catalysts Through Near-Term Exploration

With land access secured and drill-ready targets defined, Cobra is positioned to rapidly demonstrate scale and value through a focused, high-impact exploration programme

Highlights

1,855 km² of tenure across three exploration licences in the Nackara Arc, South Australia
Located in an underexplored porphyry province with strong geological similarities to the Macquarie Arc
Focused on copper-gold skarn and porphyry systems with proven high-grade intersections
Drill-ready targets with historical results including 47m @ 2.2% Cu & 0.76 g/t Au
Large-scale IP and magnetic anomalies indicating porphyry potential
Immediate value catalysts through near-term exploration during the option period

Priority Exploration Targets

Blue Rose – Copper-Gold Skarn & Porphyry Target

Shallow, high-grade skarn mineralisation over 1.6 km with drill results up to 47m @ 2.2% Cu and 0.76 g/t Au; underlain by an untested demagnetised anomaly interpreted as a porphyry source.
Netley Hill – Large-Scale Copper-Molybdenum System

3 km long chargeability anomaly with broad, shallow Cu-Mo intersections, including 350m @ 0.1% Cu & 0.05% Mo from surface; prospective for a large porphyry system.
Golden Sophia – Carlin-Style Gold Target

Consistent, shallow gold mineralisation (up to 60m @ 0.58 g/t Au) hosted in sericitised carbonaceous pelite; located near historic Wadnaminga goldfields and a blind magnetic anomaly that may indicate porphyry linkage.