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Developing one of Chile’s most significant new copper discoveries

Marimaca Copper is advancing the development of the Marimaca Oxide Deposit and exploring the Pampa Medina greenfield discovery in northern Chile, one of the world’s premier mining jurisdictions.

High-quality Copper Assets in Northern Chile

Listed on the TSX and ASX, Marimaca is focused on the development and exploration of high-quality copper assets in northern Chile. The Company’s flagship asset, the Marimaca Oxide Deposit, or the “MOD,” is located in Chile’s Antofagasta Region, approximately 25 kilometres from the Port of Mejillones. Marimaca is also advancing exploration at Pampa Medina, a high-grade greenfield copper discovery located within the Company’s broader Sierra de Medina property.

Low-risk development
Following our 2025 Definitive Feasibility Study, the permitted Marimaca Oxide Deposit is now rapidly advancing towards a final investment decision.
Tier 1 jurisdiction
A prime location, combined with access to first-class infrastructure and utilities, supports the development of a high-margin project with low capital intensity.
Substantial exploration upside
The Marimaca Oxide Deposit remains open to the north, south and at depth, while the Company is pursuing district-scale exploration at the exciting Pampa Medina and Madrugador exploration projects, located just 28km east of the MOD.

Corporate presentation

Read the latest Marimaca Copper corporate presentation to learn more about our strategy, copper assets and exploration opportunities.

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ESG Report

Marimaca recently undertook it’s fourth annual independent Digbee ESG assessment and was awarded a score of A.

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Our Projects

Marimaca Copper is advancing a portfolio of copper assets in northern Chile. Whilst the Marimaca Oxide Deposit is the Company’s flagship project, Marimaca also controls additional exploration properties at Pampa Medina and Madrugador within the Sierra de Medina region.

Marimaca Oxide Deposit Pampa Medina Project

Marimaca Oxide Deposit

The Marimaca Oxide Deposit is the Company’s flagship project located in Antofagasta, Chile – one of the world’s premier mining jurisdictions. It is one of the few globally significant greenfield copper discoveries made in the last decade and represents a low-risk development opportunity, given the proximity to the city of Antofagasta and port of Mejillones, with substantial exploration upside.

The Project is rapidly moving forward with its sustainable development plan to produce high-quality copper cathode. Following our 2025 Definitive Feasibility Study, the Project is now rapidly advancing towards a final investment decision, with the intention of becoming Chile’s newest greenfield copper mine.

Pampa Medina Project

The Pampa Medina project is an exploration and development project acquired by Marimaca Copper in October 2024. The drilling campaign at Pampa Medina to date has revealed exceptional results, demonstrating compelling district scale exploration with both copper oxide and sulphide potential.

Pampa Medina lies approximately 28 km from Marimaca’s flagship Marimaca Oxide Deposit (MOD) project and is located within the southern portion of the Company’s broader 14,500ha Sierra de Medina property package with no private land ownership. The claims also include the Madrugador claims which hosts a copper oxide deposit with a historical National Instrument 43-101 non-compliant resource estimate.

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Latest news & updates

Marimaca Copper Extends High-Grade Bornite Zone at Pampa Medina – 6m of 6.11% Cu and 24.0g/t Ag; 40m of 2.04% Cu and 11.1g/t Ag from SPRD-07
July 7, 2026
Marimaca Announces Results of Annual General and Special Meeting of Shareholders
June 30, 2026
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
June 8, 2026
Marimaca Provides Positive Progress Update on the MOD and Sulphuric Acid Strategy
May 19, 2026

Strategy & Objectives

Explore our growth strategy, development priorities, and long-term objectives.

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Investor Information

Access our latest financial reports and learn more about the investment case for our company.

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Sustainability

Learn about our sustainability commitments and Marimaca’s environmental and social impact.

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