Northwire Canada EditionSaturday, November 7, 2026
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Gold 4,079.60 −0.8% Silver 51.94 −0.8% Copper 6.24 −0.5% Oil 90.83 +0.3% Palladium 1,017.10 −2.6% KRN 0.260 −7.1% GSKR 2.84 +5.6% ADE 0.125 +4.2% NRM 0.055 +0.0% BBB 0.520 −1.9% LGD 2.09 +1.9% DEC 0.110 +0.0% LCE 0.200 +0.0% NILI 0.515 −1.0% CDE 21.85 +6.7% CAN 0.045 +0.0% LORD 0.100 +0.0% HBM 29.49 +2.3% ELEF 0.265 +120.8% MUN 0.300 +0.0% SAGA 0.400 +6.7% Gold 4,079.60 −0.8% Silver 51.94 −0.8% Copper 6.24 −0.5% Oil 90.83 +0.3% Palladium 1,017.10 −2.6% KRN 0.260 −7.1% GSKR 2.84 +5.6% ADE 0.125 +4.2% NRM 0.055 +0.0% BBB 0.520 −1.9% LGD 2.09 +1.9% DEC 0.110 +0.0% LCE 0.200 +0.0% NILI 0.515 −1.0% CDE 21.85 +6.7% CAN 0.045 +0.0% LORD 0.100 +0.0% HBM 29.49 +2.3% ELEF 0.265 +120.8% MUN 0.300 +0.0% SAGA 0.400 +6.7%
Drill Results

Marimaca Reports Additional High-Grade Silver Assays from Consolidated Drill Results at Pampa Medina

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

By The Northwire Desk — AI Analysis Apr 02, 2026 · 06:30 MARI · 8.71 Marimaca Copper Corp.
Executive Summary

The most recent news (April 2, 2026) reports the completion of silver assaying for the Pampa Medina deposit. Key findings include a strong correlation between high-grade copper and silver mineralization across a 3km x 2km area. Notable intercepts include 6m at 11.98% Cu with 82g/t Ag and 18m at 5.11% Cu with 53.4g/t Ag. While copper-equivalent (CuEq) grades are not yet reported due to pending metallurgical work, the pervasive nature of silver in both oxide and sulphide zones suggests significant by-product potential. Consequently, the company is increasing its rig count to accelerate the 2026 drilling program.

Material Impact

The impact is Routine - Positive. While the grades are exceptional, the market was already aware of the high-grade copper at Pampa Medina from the March 11, 2026, release. The confirmation of silver as a consistent by-product is a positive incremental development that will likely enhance the eventual Mineral Resource Estimate (MRE) and project economics (potentially via a silver stream), but it does not fundamentally change the project's scope beyond what was signaled in the aggressive 100,000m drill plan announced weeks prior. The news validates the "sediment-hosted" model which typically carries precious metal by-products.

MARI · Price
Company Overview

Marimaca Copper is focused on the Marimaca Oxide Deposit (MOD) in Antofagasta, Chile. - Flagship (MOD): A low-capital intensity project with a 2025 DFS showing a US$709M post-tax NPV (8%) and 31% IRR at $4.30 Cu. It targets 50ktpa of copper cathode via heap leaching. - Growth Project (Pampa Medina): A newer, high-grade sediment-hosted manto discovery located 28km from MOD, currently undergoing a 100,000m drill program to define a maiden resource.

Read the original news release →

More from Marimaca Copper Corp.

Oct 01, 2026 · 06:30

Marimaca secures grid connection and PPA framework to de-risk power ahead of H2 2026 final investment decision.

Other 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 Jun 08, 2026 · 08:45

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

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