04:29 PM EST, 11/11/2025 (MT Newswires) -- Marimaca Copper ( MARIF ) after trade Tuesday released final results from its 10,000-meter discovery drilling campaign at the Pampa Medina deposit, located at low altitude approximately 28-kilometers east of the company's Marimaca Oxide Deposit in a flat "pampa" valley within the Atacama Desert.

The company said the drilling results "continue to demonstrate material extensions to the high-grade sedimentary-hosted sulphide copper horizon, as well as upside to the known extent of the near-surface oxide mineralization". The company has subsequently begun a 30,000-meter follow-up Phase II drilling program with five drilling rigs currently on site.

Sergio Rivera, VP Exploration said: "The discovery drilling program at Pampa Medina was remarkably successful, with the definition of a potentially significant new deposit in Chile. We are encouraged by this new set of intersections demonstrating continuity of the high-grade sedimentary horizon in the south -- 900m from the previously announced drilling.

"The 30,000m follow-up campaign, now underway, will provide us with vital geological information to further our understanding of the controls, and extent, of this deposit. Pampa Medina is shaping up to be a tier one opportunity and anchors our vision for growth in the district beyond the rapidly-advancing Marimaca Oxide Deposit."

Marimaca shares closed up $0.69 to $11.65 on the Toronto Stock Exchange.