Mirador copper mine contract extension set for 1H 2026 as Ecuador targets higher output

ECSA

The Mirador copper mine contract extension will be signed in the first half of 2026, according to Ecuador’s mining vice-minister. The deal will extend Ecuador’s agreement with China’s Ecsa-Ecuacorriente to develop the Mirador Norte deposit. As a result, the Mirador copper mine contract extension could unlock a major production step-change at the country’s only large-scale copper mine.

The negotiation has dragged on since 2023 despite expectations for an earlier completion. However, Ecuador’s 2024 power crisis slowed talks and forced new conditions around self-supplied electricity. Therefore, the Mirador copper mine contract extension now hinges on power security as much as geology.

Power constraints reshape Ecuador copper mine operations

Power reliability now dictates operational stability at Mirador. Ecuador faced scheduled blackouts for 88 days in 2024, with outages lasting between four and 14 hours. Meanwhile, harsh drought conditions and a thermoelectric shortfall tightened supply and increased grid risk.

Mirador disconnected from the grid from September to December during the crisis. The mine relied on its own thermoelectric generation, but it could not cover full demand. Consequently, Ecuador required Ecsa to install dedicated power capacity to reduce system exposure.

Mirador Norte deposit expansion targets 140,000 t/d processing

Ecsa has installed 40MW of thermoelectric power and is installing another 40MW to cover current needs. The mine still needs an additional 90MW to operate Mirador Norte at scale. Therefore, the operator plans to source that power from private suppliers developing nearby small hydroelectric plants.

Mirador Norte would lift throughput to 140,000 tonnes per day by 2027–2028, up from 70,000 tonnes per day today. This expansion would materially increase concentrate output and export volumes. Meanwhile, Ecuador’s copper strategy depends on proving it can scale mining without repeating grid disruptions.

The Metalnomist Commentary

This contract extension highlights how electricity now acts as a de-risking requirement for copper expansions. However, reliance on new private hydro supply adds schedule and counterparty risk. Therefore, Mirador’s next growth phase will test Ecuador’s ability to align mining growth with firm power delivery.