Shareholders of both companies approve the US$1.29bn deal to form one of the world's largest silver miners.
Completion of the expansion included the installation of a refurbished mill, an electrical substation with 1250 KVA of capacity, a secondary crusher and a hydrocyclone cluster.
Companies operating in Mexico, Argentina and Guatemala published results from their drilling campaigns.
The Canadian company is demanding that the Colla del Río Jorquera community pay back 285mn pesos given back in 2013 after ending various conflicts.
According to studies by the state copper commission, greater copper production will also result in higher water and energy consumption.
Great Panther Silver will suspend its Guanajuato silver-gold-lead-zinc operation in Mexico for 2019 to conserve cash amid weaker metal prices, with growth plans underway in Peru and Brazil.
The German group will build a new coke oven battery to improve performance and plant efficiency at ArcelorMittal's Tubarão plant.
The export revenue figure represents a threefold year-on-year increase, official data show.