Aura Minerals begins commercial production at Borborema

Executive Summary

• Aura Minerals Inc. announced that its Borborema gold mine entered commercial production on September 22, 2025, six months after start‑up and 19 months after construction began.
• The mill is operating at >80 % of design capacity (4,500 t/d) with recoveries consistently above 90 % (up to 92 %) and has already sold >10,000 oz of gold.
• Borborema is Aura’s fifth operating mine, expected to become the second‑largest producer; reserves are 812,000 oz Au with indicated resources of ~1.18 M oz Au, providing upside potential for additional reserves.

Key Details

• Commercial Production Start: Effective September 22, 2025.
• Mill Capacity & Throughput: Operating >80 % of design capacity; processing 4,500 tonnes per day.
• Recovery Rates: Consistently above 90 %, reaching up to 92 %.
• Gold Sales to Date: More than 10,000 ounces sold since start‑up.
• Reserves & Resources:
• Probable mineral reserves: 812,000 oz Au.
• Indicated resources: ~1.18 M oz Au (37.7 Mt @ 0.97 g/t).
• Inferred resources: 394,000 oz Au (10.9 Mt @ 1.13 g/t).
• Projected Production: Feasibility study (Aug 2023) forecasts 748,000 oz Au over an 11.3‑year mine life, with potential for higher output.
• Safety Record: No lost‑time incidents (LTI) reported during construction and start‑up phases.
• Environmental Practices: Uses 100 % treated greywater from Currais Novos (excluding rainwater) for all water needs at the mine and plant.
• Future Upside: Road relocation could enable conversion of additional indicated resources to probable reserves, subject to gold price and exchange‑rate factors.

Notable Quotes

“We are proud to announce commercial production at the Borborema mine, six months after start‑up, after 19 months of construction, and with no lost‑time incidents (LTI). … This is our fifth operating mine and is expected to be our second‑largest producer.” – Rodrigo Barbosa, President & CEO, Aura Minerals Inc.