First Quantum Minerals has opened preliminary discussions on a potential minority-interest sale in the Taca Taca copper project in Argentina, with Rio Tinto, Mitsubishi Corporation and Mitsui & Co identified among potential counterparties. The process remains at an early stage. No information has been disclosed on the potential stake, valuation, transaction structure or timetable. Neither First Quantum nor the prospective investors has confirmed that active negotiations are under way, and there is no assurance that the discussions will result in a transaction.
Taca Taca is an undeveloped copper-gold-molybdenum deposit in Salta province, near Argentina’s border with Chile. Argentine officials have indicated that development would require approximately US$5.25 billion, while peak production could exceed 320,000 tonnes of copper a year, equivalent to about 1.5 per cent of current global mine supply.
Potential partners could share development requirements
A minority transaction would allow First Quantum to retain control of Taca Taca while bringing another investor into the project’s construction and infrastructure requirements. The structure could also distribute jurisdictional and development risk between the partners. A strategic investor could contribute equity, procurement capabilities, export-credit access or future offtake arrangements. Japanese trading companies can combine minority project interests with long-term marketing arrangements, while Rio Tinto could contribute mine-development and technical expertise.
First Quantum and Rio already have a project relationship through the La Granja copper project in Peru, where First Quantum acquired a majority interest from Rio in 2023. That transaction provides an existing precedent between the companies, although the eventual ownership and financing structure at Taca Taca could differ.
Taca Taca requires major capital and infrastructure
The potential investment process comes as First Quantum seeks to maintain balance-sheet flexibility following the closure of its flagship Cobre Panamá mine in late 2023. Building Taca Taca independently would require substantial debt and equity commitments before the project begins generating operating cash flow. Bringing in a well-capitalised partner could reduce First Quantum’s direct funding requirement while providing additional financial support for development and improving the project’s position with potential lenders.
Argentina’s RIGI regime, which provides investment incentives including tax, customs and foreign-exchange protections, adds to the project’s investment framework. Taca Taca nevertheless requires significant infrastructure, permitting and execution work before construction can proceed.
Power, water and export infrastructure remain key requirements
Any prospective partner would need to assess the project’s requirements for power, water and transport, together with arrangements for exporting copper concentrate and the broader costs associated with mine construction. The discussions therefore remain a potential stake-sale process rather than a completed merger-and-acquisition transaction or financing commitment. No agreement has been reached, and the eventual structure will depend on the terms of any transaction, including the price, the proportion of future capital assumed by a new partner and the extent to which First Quantum retains operating control and construction exposure.
