Sierra Metals Inc. announced consolidated production results for the fourth quarter and full year ended December 31, 2021. For the quarter, the company reported ore processed of 590,057 tonnes milled against 778,236 tonnes milled a year ago. Silver production was 805,000 ounces against 922,000 ounces a year ago. Copper production was 6,071,000 pounds against 10,626,000 pounds a year ago. Lead production was 6,011,000 pounds against 7,630,000 pounds a year ago. Zinc production was 14,913,000 pounds against 21,612,000 pounds a year ago. Gold production was 1,863 ounces against 3,363 ounces a year ago. Copper equivalent production was 17,841,000 pounds against 29,267,000 pounds a year ago. For the full year, the company reported ore tonnes processed of 2,902,220 against 2,828,877 a year ago. Silver production was 3,527,000 ounces against 3,465,000 ounces a year ago. Copper production was 31,757,000 pounds against 44,262,000 pounds a year ago. Lead production was 30,816,000 pounds against 32,972,000 pounds a year ago. Zinc production was 79,281,000 pounds against 81,868,000 pounds a year ago. Gold production was 9,572 ounces against 13,771 ounces a year ago. Copper equivalent production was 89,926,000 pounds against 118,214,000 pounds a year ago.