MARI Exploration

High-Grade Sediment Hosted Mineralization Extended at Pampa Medina – 300m Western Step-out SMRD-16 Intersects 10m of 4.2% Cu within 70m of 1.0% Cu

Published August 15, 2025 at 10:30 AM

VANCOUVER, British Columbia, Aug. 15, 2025 (GLOBE NEWSWIRE) -- Marimaca Copper Corp. (“Marimaca Copper” or the “Company”) (TSX:MARI, ASX:MC2) is pleased to announce further drilling at the Pampa Medina deposit, extending the high-grade sediment-hosted manto-system 300m to the west from previous drilling. Pampa Medina is located at low altitude approximately 28km east of the Company’s Marimaca Oxide Deposit (“MOD”) in a flat “pampa” valley within the Atacama Desert (Figure 1). The Company is executing a 10,000m extensional drilling program with three rigs currently on site.

Related Questions

What is the expected increase in resource estimate and how will it affect the company's valuation? How does the new 4.2% Cu intercept compare to previous drill results and current market expectations? What is the timeline for completing the 10,000m extensional drilling program and releasing updated technical reports? Will the extended high‑grade mineralization lead to a revision of the inferred and indicated resource categories? How might the additional copper grades impact the project's economics, such as NPV and IRR, under current price assumptions? What are the potential capital and operating cost implications of expanding the Pampa Medina deposit? How does this drilling success influence the company's future financing needs or potential debt/equity raises? Are there any permitting or regulatory considerations that could be affected by the westward extension of the deposit? What is the expected impact of this news on copper market sentiment and the stock’s short‑term price movement? How does Marimaca Copper’s Pampa Medina results compare to similar projects in the Atacama Desert region and to its peers?