Sierra Metals Inc. revised production guidance for the year 2021. For the year, the company now expects production of Silver 3,700,000 to 4,000,000 oz, Copper 36,500,000 to 39,000,000 lbs, Lead 30,500,000 to 33,000,000 lbs, Zinc 76,500,000 to 84,000,000 lbs, gold 10,500,000 to 11,000,000 oz, Copper equivalent pounds 110,000,000 to 115,000,000 and Silver equivalent ounces 13,500,000 to 14,500,000 compared to previous guidance of Silver 4,298,000 to 4,628,000 oz, Copper 44,090,000 to 48,380,000 lbs, Lead 31,871,000 to 34,322,000 lbs, Zinc 101,409,000 to 109,240,000 lbs, gold 10,691,000 to 11,720,000 oz, Copper equivalent pounds 129,988,000 to 141,018,000 and Silver equivalent ounces 16,126,000 to 17,494,000, respectively.