01:20 PM EDT, 08/18/2025 (MT Newswires) -- Tintina Mines ( TNNTF ) on Monday said it completed its drilling campaign at the Domeyko Sulfuros Project in the Atacama region of Chile.

The company said the program totaled 12 diamond-drill holes totaling 5,810 meters and aimed to upgrade the Inferred Resources reported in January, 2025, mineral resource estimate and to support the development of the Preliminary Economic Assessment.

Preliminary drill results confirm the resource and demonstrate the potential to expand the deposit both to the northwest and at depth. Geometallurgical tests conducted during this phase indicate good copper liberation, low pyrite association, and favorable metallurgical recoveries, including 92.6% for Cu and 74.9% for gold across flotation tests using both seawater and freshwater.

The company is expected to issue an updated resource estimate in September. and will seek the expertise of SRK Consulting for resource estimation, cost estimation, generation of economic scenarios, and sensitivity analysis.

Tintina Mines ( TNNTF ) shares were last seen up $0.015 to $0.26 on the TSXV Venture Exchange.

Price: 0.26, Change: +0.02, Percent Change: +6.12