Altamira Gold Drills Additional Mineralized Porphyry Outside the Maria Bonita Mineral Resource, Cajueiro District, Brazil

Why It Matters

The discovery widens the known footprint of the Maria Bonita porphyry, opening up additional gold ounces for future resource growth and enhancing Altamira’s valuation in the competitive Juruena Gold Belt.

Key Takeaways

• Drill hole MBA036 intersected 70.6 m @ 0.5 g/t Au at 277 m depth
• Porphyry mineralization extends west beyond Maria Bonita resource limits
• Cajueiro Central holds 5.66 Mt @ 1.02 g/t Au (185k oz) indicated
• Total of eight unexplored targets lie within 8 km of Cajueiro Central
• Metallurgical tests show up to 96% gold recovery from oxide and sulfide

Pulse Analysis

Altamira Gold’s latest scout drilling in Brazil’s Cajueiro district underscores the company’s strategic focus on expanding its porphyry‑type gold portfolio. Hole MBA036, collared just south of the Maria Bonita pit, returned a continuous 70.6‑metre interval grading 0.5 g/t gold from 277 metres depth, mirroring the sheeted quartz‑vein and stockwork textures that define the core of the existing resource. This western extension suggests the porphyry system is larger than previously modelled, offering a new target zone that could host additional high‑grade veins and bolster the overall deposit geometry.

The broader Cajueiro project already boasts significant resource metrics. Cajueiro Central’s indicated pit resource of 5.66 million tonnes at 1.02 g/t gold (approximately 185,000 ounces) complements Maria Bonita’s combined indicated and inferred resources of roughly 50 million tonnes grading around 0.45 g/t gold. Geological interpretation points to at least three intrusive phases, with the earliest phase delivering the richest quartz‑vein stockwork. Early‑phase mineralization typically yields 0.7‑1 g/t gold, while later pulses trend lower, reinforcing the value of targeting the western extension where early‑phase signatures appear preserved.

Looking ahead, Altamira plans to pair continued westward scout drilling with infill work at Cajueiro Central, while advancing metallurgical programs that have already demonstrated up to 96% recovery from both oxide and sulfide ores. Situated within the prolific Juruena Gold Belt—an area that has produced over 6 million ounces of placer gold—the project benefits from excellent infrastructure, including road access, grid power, and water supply. The combination of expanding geological horizons, solid resource fundamentals, and high‑grade recovery potential positions Altamira to attract capital and potentially increase its resource base in a region of growing investor interest.