Marimaca Copper Corp.
Overview
Marimaca Copper Corp. is a junior copper development company headquartered in Vancouver, Canada, operating primarily in South America. The company's portfolio consists of 1 development project. Key assets include Marimaca. The company is an exploration and development entity focused on advancing new mineral sources. Its business model centers on progressing a primary asset towards production through a definitive feasibility study and a comprehensive environmental permitting process. The operational plan for this asset envisions a conventional heap leach, solvent extraction, and electrowinning circuit designed to use seawater, which supports a profile as a potentially low capital cost, high-margin development. The enterprise's activities are structured to allow for all-season fieldwork, mitigating certain operational cycle risks. Specialized skills in geology, metallurgy, and project development are managed through a combination of an experienced internal team and specialized external consultants and contractors. The business competes with other entities for exploration properties, capital, and qualified personnel in a highly competitive industry.
Strategy
Strategic priorities are centered on the systematic de-risking and advancement of the company's primary development asset, supported by the recent submission of a comprehensive environmental impact statement and an ongoing definitive feasibility study. A key growth initiative includes a proposed dual listing on the ASX to broaden market access and enhance liquidity. Capital strategy involves securing funding through targeted equity placements with strategic corporate investors, including Mitsubishi Corporation and Assore International Holdings Limited, and utilizing an at-the-market equity program. This approach funds ongoing development work and regional exploration programs aimed at expanding the resource potential. The company also employs structured option agreements with staged payments to acquire prospective ground, allowing for capital-efficient expansion of its land holdings while preserving treasury. The overarching goal is to transition from a developer to a producer by successfully navigating the final technical and permitting stages.
Management
Executive leadership is spearheaded by a President and CEO with extensive experience in developing publicly listed mining companies on the LSE and ASX, complemented by a background in mining-focused investment banking and private equity. The board of directors provides strategic oversight through a robust committee structure, including an Audit and Risk Management Committee, a Mergers and Acquisitions Committee, a Compensation Committee, an Environmental, Social and Governance Committee, and a Technical Committee. Governance is further defined by a detailed Audit and Risk Management Committee charter, which mandates at least 4 meetings per year and outlines procedures for financial oversight and risk management. The board and senior management maintain continuous interaction, with all directors having direct operational site experience. The management team includes executives with substantial in-country experience in project development, corporate finance, and exploration, ensuring specialized skills are applied across all business functions.
Sustainability
The organization demonstrates a commitment to environmental stewardship through the submission of a comprehensive, 4,000-page Environmental Impact Statement to regulatory authorities, which includes extensive baseline data to support sustainable development. A key design feature of its primary development project is the planned use of seawater for all processing needs, minimizing the impact on local freshwater resources. The company's ESG performance is tracked and validated through independent annual assessments using the Digbee ESG framework, which has shown a progressive improvement in its overall score from BB in 2022 to an A rating in 2024. Stakeholder engagement is a core component of its process, with formal meetings and communication programs implemented to align with project milestones. The company also has a formal risk management framework that addresses environmental risks and compliance with evolving legislation.
Structure
The company operates through several wholly-owned subsidiaries, including MCAL, ICAL, and SCM NewCo, which hold its primary mineral concessions and conduct in-country operations. Its ownership structure includes significant strategic investors, with Greenstone holding a 25.27% interest, Assore International Holdings Limited holding approximately 14.99%, and Mitsubishi Corporation holding approximately 5.0%; these shareholders possess certain pre-emptive or participation rights in future equity financings. In 2024, the company entered into binding option agreements to acquire 100% of the Pampa Medina tenements from SCM Elenita and the Madrugador tenements from SLM Juanita and SLM Madrugador, both involving multi-year, staged payment structures. A 2022 transaction involved the sale of the non-core Rayrock assets to 5Q SpA, which has subsequently led to the company initiating liquidation proceedings against the buyer's holding entity due to non-payment. The company also holds a 25% interest in RSC, a joint venture with Greenstone.
Source
Marimaca Copper Corp. - Annual Information Form - 2025
- Project should be interpreted as a single, group or complex of mines, deposits or other mineral assets. Name of the project should be identical to the official company naming convention.
- The ranges of values provided are indicative and should not be regarded as exact figures.
- Figures for exploration and development projects are based on available data and are indicative only; actual values may vary substantially.
- Royalties frequently apply to specific mineralized areas that may not coincide exactly with the boundaries of the overall project. As a result, even if a mine is currently in operation, the portion subject to the royalty may not be included in extraction activities until future years.
- Commodities are listed from most dominant to least dominant. Only selected commodities are shown.
- Table might not include all projects that are currently owned by the company. Displayed data are snapshots of the company's projects in time and might not be up to date.
- Exploration projects are partially represented in the table. Only projects with mineralization or strategic importance are shown.
- Companies might own processing facilities that are not included in the table. Those facilities play important role especially for companies operating in uranium, nickel and lithium sectors.
- Chart is always based on the company's primary listing.
- Presented values are denominated in currency of the country where the company is headquartered. Values like market capitalization might differ from the values visible in other parts of the page, where the currency is always USD.
- koz au: Thousand ounces of gold (production volume)
- moz au: Million ounces of gold (resource base or production volume)
- g/t: Grams per tonne (grade of gold or silver in ore)
- usd/oz au: US dollars per ounce of gold (cost metric)
- moz ag: Million ounces of silver (resource base or production volume)
- g/t ag: Grams per tonne of silver in ore (grade)
- usd/oz ag: US dollars per ounce of silver (cost metric)
- kt cu: Thousand tonnes of copper (production volume)
- mt ore: Million tonnes of ore (resource base for copper)
- %: Percent copper or uranium in ore (grade)
- usd/lb cu: US dollars per pound of copper (cost metric)
- mlb U3O8: Million pounds of uranium oxide (U3O8) (production or resource base)
- % eU3O8: Percent equivalent uranium oxide in ore (grade)
- usd/lb u3o8: US dollars per pound of uranium oxide (cost metric)
- Open Pit: Surface mining method using large excavated terraces to extract ore
- Underground: Subsurface mining through shafts, tunnels, and chambers
- ISR (In-Situ Recovery): Solution mining method using chemical leaching without excavation
- Exploration: Early-stage project searching for and defining mineral deposits
- Development: Mine under construction or preparation for production
- Operating: Active mine currently extracting and processing ore
- Expansion: Mine temporarily suspended or with limited production, in progress to increase production in the future
- Reclamation: Mine permanently closed or no longer producing, but the site is being rehabilitated
- P&P (Proven and Probable Reserves): Highest confidence mineral resources with detailed mine plans, it's a subset of M&I
- M&I (Measured and Indicated Resources): Well-defined resources with good geological confidence
- Inf (Inferred Resources): Estimated resources with limited geological confidence
- Scoping Study: High-level assessment to determine if a project warrants further investigation
- PEA (Preliminary Economic Assessment): Initial economic evaluation of a mineral project
- Pre-Feasibility (Preliminary Feasibility Study): Intermediate-level technical and economic assessment
- Feasibility (Definitive Feasibility Study): Comprehensive technical and economic evaluation for investment decisions
- BFS (Bankable Feasibility Study): Detailed study meeting lender requirements for project financing
- NPV (Net Present Value): Discounted value of future cash flows minus initial investment
- IRR (Internal Rate of Return): Discount rate that makes NPV equal to zero
- Payback Period: Time required to recover initial capital investment from project cash flows
- AISC (All-In Sustaining Cost): Total cost per ounce including sustaining capital and corporate costs
- Royalty: Payment to landowner/government based on percentage of production value or revenue
- Stream: Agreement to purchase future production at predetermined price, often below market rate
- NSR (Net Smelter Return): Royalty based on net revenue after smelting and refining costs
- GRR (Gross Revenue Royalty): Royalty based on total gross revenue before any deductions
- NPI (Net Profits Interest): Royalty based on net profits after operating costs and capital recovery