Codelco and Rio Tinto sign early agreement to explore new mining investments in Chile

The Chilean state-owned copper giant and the Anglo-Australian miner have signed a memorandum of understanding to assess joint development opportunities, focusing on project execution, operational standards and supply chain coordination.

Codelco, the world’s largest copper producer, and Rio Tinto have signed a memorandum of understanding (MoU) to explore development and investment opportunities in Chile, extending a relationship that already includes joint work in both copper and lithium. The agreement sets out a strategic collaboration framework aimed at improving the execution of large-scale mining projects in the country.

According to Codelco, the MoU is designed to combine the global experience of both companies in project management, operational excellence and supply chain coordination, with the goal of improving timelines, optimizing costs and strengthening long-term value creation in Chilean mining. Codelco also said the cooperation is intended to support knowledge transfer and stronger integration of ESG criteria in future project execution.

Joint steering committee will identify pilot initiatives

As part of the agreement, the two companies will form a joint steering committee made up of senior executives. Its role will be to identify pilot projects and oversee the initiatives developed under the MoU.

This structure gives both sides a formal mechanism to assess where collaboration can create the most operational and financial value, especially as mining projects in Chile become more complex and capital-intensive. That final point is a reasonable inference from the stated purpose of the agreement.

Agreement builds on existing copper and lithium partnerships

The new MoU builds on an existing relationship between the two companies. Rio Tinto already partners with Codelco in the Nuevo Cobre copper project in Chile and in lithium development at the Maricunga salt flat.

Reuters previously reported that Codelco and Rio Tinto were already stepping up work around Nuevo Cobre as part of a broader effort to develop a copper “mining district” in northern Chile.

Taken together, these links suggest the new agreement is not a standalone move, but part of a broader effort to deepen cooperation across multiple strategic assets in Chile. That is an inference based on the companies’ existing partnerships and the wider scope of the MoU.

Codelco continues partnership strategy to support expansion

The MoU also aligns with Codelco’s broader strategy of partnering with major international mining companies to help support its high-cost, capital-intensive expansion plans. Reuters has reported that the state miner continues to rely on alliances to improve execution and help fund large project pipelines.

That approach has become increasingly important as Codelco pushes ahead with major structural investments while managing rising project complexity and funding requirements.

Chile remains central to global copper and lithium growth

The agreement comes as Chile seeks to reinforce its role as a leading supplier of both copper and lithium, two commodities that remain central to electrification, energy transition and industrial technology. While the MoU does not commit either company to a specific new project yet, it signals that both still see room for large-scale mining investment in the country. That conclusion is an inference based on the agreement’s stated intent to explore opportunities.

With this move, Codelco and Rio Tinto are broadening a partnership that already spans key strategic minerals, positioning it as a platform to evaluate future mining investments in Chile.