Onça Puma has production capacity of 58,000t/y of nickel, mostly as ferronickel.
The limestone extraction project is focused on the production of magnesite and other minerals.
Mexican ferroalloy producer is on track for its best results in nearly a decade this year following strong rises in silicomanganese and ferromanganese prices.
Mining exploration companies Glen Eagle Resources, Horizonte Minerals and U3O8 provide operating updates on their projects.
First Quantum Minerals' US$5.48bn copper-gold project will become one of the country's biggest cash generators when production begins in 2019, Panama's President Juan Carlos Varela says.
Citi-Banchile said that it has a positive outlook for the company's lithium investment strategy, and that SQM is well positioned to take advantage of its competitor's woes in the potassium nitrate business.
Peruvian precious metals miner Buenaventura may add to its copper assets as a rebound in prices this year makes the metal more attractive.