Tinka obtains authorization to start drilling at Silvia

Executive Summary

• Tinka Resources received formal authorization from Peru’s Ministry of Energy and Mines to commence a drill program at its 100 % owned Silvia gold‑copper project.
• The company plans an initial diamond drill program of approximately 1,500 m targeting Area A of the Silvia NW target in Q4 2025, contingent on financing.
• The permit allows up to 40 drill platforms covering three identified mineralized zones (Areas A‑C) across a ~4 km strike length.

Key Details

• Permit Issuance: Formal resolution from the Ministry of Energy and Mines received on Aug. 12 2025, authorizing drilling at Silvia.
• Project Scope: Up to 40 drill platforms over three target areas (A, B, C) spanning ~4 km²; initial focus on Area A.
• Planned Drill Program: Approximately 1,500 m of diamond drilling slated for Q4 2025 using a portable rig; subject to adequate funding.
• Historical Acquisition: Silvia acquired 100 % from BHP in 2021 for a 1 % NSR royalty and a one‑time cash payment.
• Geology & Targets: Gold‑copper mineralization associated with skarn alteration in Cretaceous limestone intrusions; Area A shows up to 22 g/t Au and 12 % Cu in outcrop geochemistry.
• Trench Results (Area A): 46 m @ 1.9 g/t Au, 0.8 % Cu; 34 m @ 0.2 g/t Au, 0.4 % Cu. Average of 261 non‑selective samples over a 500 × 150 m zone: 0.55 g/t Au, 0.45 % Cu.
• Exploration Work: Drone‑based magnetics (100 m line spacing) identified several anomalies, including a 1.5 km diameter circular feature at Area B interpreted as a potential deep intrusion.
• Previous Approvals: Drill permit (DIA) for up to 40 platforms approved by the General Directorate of Mining in Aug 2023; access agreement with local community notarized Nov 2024.

Notable Quotes

“Receiving formal notification from the Peruvian authorities of this important milestone at Silvia is a big step forward for the company… The Silvia NW target … has been significantly upgraded… The property has not been drill tested.” – Dr. Graham Carman, President & CEO, Tinka Resources Ltd.