The smelters at the Chuquicamata and El Salvador divisions will stop operating from December 13 to comply with the Chilean supreme decree 28 to cut gas emissions.
Output of zinc and lead by Mexico's four biggest producers fell, impacted by changes in grades, throughput and recoveries.
The Mexico-focused miner saw a 69% hike in silver equivalent output in Q3,reflecting the addition of the San Dimas gold-silver operation.
Steel demand in the Latin American economies is set to enter its second year of recovery, backed by positive developments in the domestic and the global economy, according to the World Steel Association.
Companies report Q3 output for gold, silver, copper, lead and zinc operations in Mexico and Colombia.
Companies issue appointment and financing updates relating to gold and silver assets in Mexico and Panama.
Companies in Colombia, Ecuador and Peru published results from their exploration programs.