Northwire Canada EditionTuesday, September 22, 2026
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GOLD 4383.90 −0.9% SILVER 66.53 −0.9% COPPER 6.79 +1.5% OIL 92.37 −3.9% PALLADIUM 1319.50 +0.0% MSC 0.020 +0.0% BRON 0.050 +0.0% ELD 59.44 −1.4% GBML 0.220 +0.0% SUM 1.59 +0.0% ABC 0.015 +0.0% ELE 30.45 +2.2% CDE 27.46 −0.7% LIB 0.990 +1.0% SLVR 1.17 +0.0% NVO 0.075 −6.2% BRO 0.235 +2.2% FMAN 0.415 +0.0% HVG 0.050 +0.0% MSV 0.540 +16.1% SCD 0.185 −2.6% GOLD 4383.90 −0.9% SILVER 66.53 −0.9% COPPER 6.79 +1.5% OIL 92.37 −3.9% PALLADIUM 1319.50 +0.0% MSC 0.020 +0.0% BRON 0.050 +0.0% ELD 59.44 −1.4% GBML 0.220 +0.0% SUM 1.59 +0.0% ABC 0.015 +0.0% ELE 30.45 +2.2% CDE 27.46 −0.7% LIB 0.990 +1.0% SLVR 1.17 +0.0% NVO 0.075 −6.2% BRO 0.235 +2.2% FMAN 0.415 +0.0% HVG 0.050 +0.0% MSV 0.540 +16.1% SCD 0.185 −2.6%
Drill Results Routine +

Pampa Medina Sulphide Drilling Intersects 16m of 5.70% Cu and 62.6 g/t Ag including 4m of 11.32% Cu and 144.0 g/t Ag in Significant Extension of UHG Bornite Zone

Marimaca Copper drilled ultra-high-grade bornite at Pampa Medina, though execution risk and capital intensity cap near-term upside.

By The Northwire Desk — AI Analysis Jun 08, 2026 · 08:45 MARI · 7.06 Marimaca Copper Corp.
Executive Summary
  • Marimaca Copper Corp. released assay results from its ongoing 2026 drilling program at the Pampa Medina deposit in Chile.
  • Hole SPRD-05 intersected 96m at 1.19% Cu and 11.7g/t Ag, including 60m at 1.80% Cu and 18.4g/t Ag, and 16m at 5.70% Cu and 62.6g/t Ag, including 4m at 11.32% Cu and 144.0g/t Ag.
  • The company is finalizing a 150m-spaced delineation campaign ahead of a maiden Mineral Resource Estimate (MRE).
  • Geophysical programs (AMT) were completed at Pampa Norte and Sierra Norte to identify continuations of favorable mineralized sedimentary units.
  • Management emphasized the strong lateral continuity of sulphide mantos and the deposit's potential for district-scale significance.
Material Impact
  • The June 8, 2026 release is a routine exploration update that follows a consistent series of high-grade copper-silver intercepts announced throughout 2025 and early 2026.
  • Results are fully in line with the company's stated 2026 exploration plan and previous announcements (May 19, April 2, March 11, January 26).
  • No new strategic partnerships, financing closings, permitting milestones, or resource estimates are disclosed in this release.
  • The market has already priced in the geological potential of Pampa Medina based on prior step-out drilling. This update merely confirms the continuity of the mineralized system.
  • Consequently, the news is incremental and expected, lacking the catalysts required to materially shift the stock's valuation or near-term trajectory.
MARI · Price
Company Overview
  • Marimaca Copper Corp. is focused on the Marimaca Oxide Deposit (MOD) in the Antofagasta region of Chile.
  • The MOD is an IOCG-type copper deposit with a Definitive Feasibility Study (DFS) completed in August 2025.
  • The project targets 50 ktpa of copper cathode production over a 13-year mine life, with pre-production capital of US$587 million.
  • Economic metrics from the DFS show a post-tax NPV of US$709 million at $4.30/lb Cu and an IRR of 31%.
  • Pampa Medina is a separate sediment-hosted copper-silver manto system located ~28 km east of MOD, currently in the exploration and delineation phase.
  • The company aims to reach a Final Investment Decision (FID) in the second half of 2026.
Read the original news release →

More from Marimaca Copper Corp.

Sep 08, 2026 · 06:00

Marimaca reports 173m true width at 0.96% copper, expanding the manto system while the stock continues to discount the discovery.

Drill Results Jul 07, 2026 · 06:30

Marimaca’s bornene zone extends 300m south with 40m of 2.04% copper, boosting the scale of its high-grade manto system.

Drill Results May 19, 2026 · 16:10

Marimaca Copper Advances MOD Permitting Toward H2 FID Amidst Pampa Medina Exploration Upside

Production / Operations May 19, 2026 · 06:30

Marimaca Copper Corp.

Drill Results Apr 02, 2026 · 06:30

Marimaca transitions from explorer to developer with a C$409M war chest and high-grade silver sweeteners at Pampa Medina.

Drill Results Mar 30, 2026 · 08:59

Marimaca transitions from explorer to developer with a C$409 million war chest and a massive 100,000m drill program at Pampa Medina.

Technical Study