Marimaca Copper Objectives and Strategy

Marimaca Copper Corp is an emerging copper producer and exploration company focused on the development of a new copper district in northern Chile. The Company’s flagship asset, the Marimaca Oxide Deposit (“MOD”), is one of the most attractive copper development projects globally, underpinned by the Definitive Feasibility Study (“DFS”) completed in 2025, demonstrating robust economics, low capital intensity, competitive operating costs, with a clear pathway to construction and production. In the adjacent broader Sierra de Medina land package, Marimaca is expanding the potentially game changing Pampa Medina sulphide discovery and unlock what could be a new copper district in Chile.

The DFS confirms the MOD’s potential to support an initial anticipated production capacity of approximately 50ktpa of copper cathode, with strong cashflows across a wide range of copper price scenarios. The MOD is well-advanced with the RCA (Environmental Approval) permit secured, and financing workstreams ongoing.

Alongside advancing the MOD toward production, the Company is executing a district-scale growth strategy across its extensive Sierra de Medina land package. Recent exploration success at the Pampa Medina Deposit has confirmed the discovery of a potentially significant new copper system, with high-grade continuity demonstrated over hundreds of metres and strong potential for both oxide and sulphide expansion. Exploration programs are underway to further define the scale, controls, and growth potential of the deposit, which is increasingly viewed as a cornerstone of Marimaca’s long-term expansion strategy beyond the initial MOD development.

The Company believes that the anticipated 50ktpa production profile from the MOD represents a starting point, with a clear ambition to increase copper cathode production to over 70ktpa within the next five years through disciplined exploration success, resource growth, and staged development.

All members of the Board believe in the importance of good corporate governance and in its accountability to all stakeholders in Marimaca Copper Corp including our shareholders, advisers, regulators, consultants, employees and local communities. Exemplary corporate performance mitigates risk and is an important factor in achieving the long-term success of the Company, and in unlocking the full potential of the Marimaca Copper Project. This performance requires a highly skilled team on the ground, close community engagement, and environmental prudence to correctly capitalise on the land under the Company’s control.

Marimaca is committed to creating long-term value for all our stakeholders through integrating ESG best practice into the ongoing development of the Company:

Marimaca has demonstrated a commitment to environmentally sound exploration most recently shown by the receipt of its Environmental Qualification Resolution, allowing new exploration campaigns at the Project and in the broader Marimaca District.

It is the Company’s view that working closely with the government and local stakeholders will maximise the success of the area and engage local communities in the important work ahead. Marimaca’s prime location, and proximity to Antofagasta, allows ready access to world class talent to progress the Project as well as infrastructure and utilities, ensuring low execution risk.