True North Copper (ASX:TNC) confirmed the geometry, continuity, and scale of copper-silver-cobalt mineralization at the Mt Oxide project's Aquila discovery in Queensland upon completion of its 2025 second-phase reverse circulation drilling program, according to a Tuesday filing with the Australian bourse.

Results showed mineralization with estimated true widths of about 45 to 60 meters over a central 250-meter strike length zone, with mineralization now defined over more than 1,000 meters of total strike, the filing said.

The program also validated Acanthis as a parallel mineralized trend.

Planning is underway for this year's exploration program, which is designed to expand the understanding of the Aquila geology and advance district-scale discovery across the project, per the filing.

Shares fell 6% in afternoon trade on Tuesday.