Chile and Argentina are breathing new life into a decades old treaty to create a massive copper hub spanning the Andes Mountains. In a recent meeting in Santiago, officials from both nations established operational protocols that clear the way for over 20 billion dollars in potential investments. While the Mining Integration and Complementation Treaty was originally signed back in 1997, it remained largely dormant until the current administrations of President Jose Antonio Kast and President Javier Milei decided to revive it this year to capitalize on the global demand for minerals.
The heart of this agreement lies in three specific mega projects known as Vicuna, NexoAndino, and Filo Sur. These deposits sit directly on the border between Argentinas San Juan province and Chiles Atacama region, making shared infrastructure essential for their success. By signing these additional protocols, the two countries have created a legal roadmap that allows companies to move equipment and resources seamlessly across borders. For Argentina, this is particularly transformative as it grants landlocked mines easier access to Chiles sophisticated ports and existing supply chains along the Pacific coast.
Industry leaders believe this cooperation will trigger an economic boom for both neighbors. Joaquin Villarino of Chiles Mining Council noted that binational projects open huge doors for local suppliers and service providers who can now operate across a wider geographic area. On the Argentine side, the push comes at a critical time; the country hasn’t produced copper since 2018, but it is currently entering its most aggressive investment cycle in history thanks to new tax incentives designed to attract foreign capital.
The scale of ambition here is staggering, with some analysts suggesting that total capital absorption across various Argentine developments could eventually reach 44 billion dollars. If these integrated hubs become fully operational, projections suggest Argentina could produce over a million tons of copper annually by 2035. As representatives from major firms like Glencore and McEwen Mining gather to refine these plans, the revival of this old treaty signals a shift toward regional pragmatism aimed at dominating the green energy transition market.
