Marimaca Copper is a mineral exploration and development company focused on advancing copper assets in northern Chile. The company’s primary business activity centers on the Marimaca copper deposit, a near-surface oxide‐rich deposit located approximately 100 kilometres northeast of the regional mining hub of Antofagasta. Marimaca Copper holds its interests through a series of concession agreements and has concentrated on delineating resources and test‐mining to support a low‐cost development pathway.
Marimaca’s flagship project has been the subject of systematic exploration, metallurgical test work and engineering studies. The deposit exhibits copper oxide mineralization amenable to heap leach extraction, followed by solvent extraction and electrowinning (SX‐EW) to produce high‐purity copper cathode. Through successive resource drilling campaigns, the company has upgraded the project’s mineral inventory and refined design parameters aimed at optimizing recoveries and minimizing environmental footprint.
The Marimaca operation is supported by a remote sulphide oxide pilot plant, which has demonstrated steady production of copper cathode over extended campaigns. Current development plans envisage a modular heap‐leach SX‐EW facility capable of scalable throughput, with associated infrastructure for water management, power supply and road access already under consideration. Marimaca Copper continues to advance environmental baseline studies, community engagement programs and permitting processes in line with Chilean mining regulations.
Headquartered in Santiago, Marimaca Copper is led by a management team with extensive experience in Chilean copper exploration, engineering and project finance. The company leverages both in‐country expertise and international best practices to de-risk project development and position itself for potential offtake partnerships. Marimaca’s strategic focus remains on delivering a safe, cost‐efficient copper operation within one of the world’s most prolific copper belts.
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