The IC-Br index comprises prices of agricultural, mineral and energy commodities.
Companies issue corporate updates relating to gold and industrial metals properties in Mexico, Chile and Brazil.
The US$4.7bn Quebrada Blanca phase II expansion could be dwarfed by a further phase of growth at the Chilean copper asset, Teck Resources CEO Don Lindsay said, after he announced a new partnership deal.
The move is part of Vale's plans to create value from its operations, the CEO of the Brazilian company told reporters in New York on Tuesday.
Vitoria's municipal council, in Brazil's Espírito Santo state, maintains the charges against the steelmaker over black particles pollution.
Companies operating in Argentina, Peru and Mexico published updates on their mining developments.
The board also approved Quebrada Blanca 2. Sumitomo will pay US$50mn to Teck upon QB2 achieving optimized target mill throughput.