Sierra Metals Inc. reported consolidated production results for fourth quarter and full year 2018. 2018 Consolidated Production Highlights: Silver production of 2.7 million ounces; a 17% increase from 2017. Copper production of 34.0 million pounds; a 27% increase from 2017. Zinc production of 76.8 million pounds; a 1% increase from 2017. Lead production of 27.7 million pounds; a 7% decrease from 2017. Gold production of 7,743 ounces; a 25% increase from 2017. Total of 2.3 million tonnes processed; a 16% increase from 2017.

Fourth Quarter 2018 Production Highlights: Silver production of 0.7 million ounces; a 41% increase from Fourth Quarter 2017. Copper production of 8.9 million pounds; a 20% increase from Fourth Quarter 2017, Zinc production of 17.5 million pounds; a 10% decrease from Fourth Quarter 2017. Lead production of 7.9 million pounds; a 39% increase from Fourth Quarter 2017. Gold production of 2,137 ounces; a 34% increase from Fourth Quarter 2017.

The company provides 2019 Production Guidance. The Company anticipates that 2019 silver equivalent production will range between 19.5 to 21.8 million ounces, copper equivalent production will range between 107.0 to 119.9 million pounds, and zinc equivalent production will range between 261.5 to 292.9 million pounds. The increase in 2019 guidance for silver ounces and copper pounds compared to the actual 2018 production is due to the significant throughput and recovery increases planned at Bolivar and Cusi. At Yauricocha, higher copper production should be realized due to consistent copper head grades and improvement to recoveries expected from the various areas planned to be mined from the copper areas in the Esperanza Zone during 2019.