The project represents a strategic pivot for the company, utilizing existing infrastructure to increase ore processing capacity by 6 million tonnes annually, bringing the site’s total to 42 million tonnes. By integrating a new flotation circuit that removes waste rock earlier in the processing stream, the company expects to alleviate long-standing grinding bottlenecks and improve metallurgical recoveries. Beyond production gains, the expansion is projected to yield 15,000 ounces of gold as a byproduct, further bolstering the economic profile of Brazil’s largest copper operation.

Financial backing for the project includes a $40 million contribution from Wheaton Precious Metals, which simplifies the capital expenditure requirement for Vale to approximately $175 million. This partnership effectively replaces future streaming milestone payments, allowing the project to proceed with a low capital intensity of $5,000 to $6,000 per copper equivalent tonne. CEO Shaun Usmar noted that this development, alongside the early delivery of the Bacaba project, underscores the firm's ability to optimize its asset portfolio during a period of global supply shortages. The company is now evaluating the application of this flotation technology across its other polymetallic sites in the Carajás region.