Silvercorp Metals Q1 Production ~1.8M Oz. Of Silver, 20.1M Lbs. Of Lead, 7.5M Lbs. Of Zinc; Says Co. On Track To Produce 6.2M-6.5M Oz. Of Silver, 66.1M-68.5M Lbs. Of Lead, 24.5M-26.7M Lbs Of Zinc In FY21