Altamira Gold Completes First Deep Drill Hole at Maria Bonita and Extends Size of Alteration Zone at Tavares Norte Target, Cajueiro District Brazil

Executive Summary

• Altamira Gold completed its first deep drill hole (MBA032) at the Maria Bonita target, intersecting >500 m of highly altered porphyritic intrusive rocks with dense quartz veining; assay results are pending.
• Surface mapping and grab‑sample programs at the nearby Tavares Norte and Morro Verde targets returned multiple high‑grade gold anomalies (up to 27.5 g/t Au) and notable copper/molybdenum values, indicating potential additional porphyry systems.
• A high‑resolution drone magnetic survey is 75 % complete (43 km² of 56 km²), providing detailed magnetic data to aid further target definition.

Key Details

• Drill Hole MBA032 – Located 100 m south of hole MBA029; intersected 500 m of brecciated, highly altered porphyritic rocks from 34.3 m to 534.7 m depth with an average of ~4 quartz veinlets per metre (Figures 3‑4). All samples submitted; assay results pending.
• Surface Sampling – Tavares Norte: 94 grab samples collected; 20 >0.1 g/t Au, highest 27.5 g/t Au; also 929 ppm Cu and Mo anomalies (10–356 ppm).
• Surface Sampling – Morro Verde: 62 grab samples; 13 >0.1 g/t Au, highest 5.2 g/t Au; assays of 356 ppm Mo and 366 ppm Cu.
• Mapping Insight – Sericite alteration zone extends ~1.5 km eastward from Maria Bonita, linking Tavares Norte to Morro Verde targets (Figure 5).
• Drone Magnetic Survey – Planned coverage 56 km²; 545 km of N‑S lines; 43 km² (75 %) completed, delivering high‑resolution magnetic maps for target refinement.
• Resource Context – Cajueiro Central: Indicated 5.66 Mt @ 1.02 g/t Au (185 k oz) & Inferred 12.66 Mt @ 1.26 g/t Au (515 k oz). Maria Bonita: Indicated 24.19 Mt @ 0.46 g/t Au (357.8 k oz) & Inferred 25.64 Mt @ 0.44 g/t Au (362.4 k oz).
• Future Plans – Additional deep holes at Maria Bonita pending assay results; initial drill testing of Tavares Norte planned as part of the current program.

Notable Quotes

“The first deep hole at Maria Bonita intersected over 500 m of highly altered porphyritic rocks and suggests that the intrusive system there could be significantly larger than currently envisaged… the surface mapping and sample results from the untested Tavares Norte target are highly encouraging and suggest the possible presence of another porphyry system.” – Mike Bennett, President & CEO

Materiality Assessment: Non‑Material – Positive (provides significant exploration updates but does not constitute a material financial event).