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Sierra Metals Significantly Increases Mineral Resource Estimate for Cusi Silver Mine, Mexico

Total Measured and Indicated Resources increased 129% to 4,557,000 tonnes from 1,990,000 tonnes previously reported; and Total Inferred Resources increased 36% to 1,633,000 tonnes from 1,200,000 tonnes previously reported
Total Measured Mineral Resources for Cusi are 362,000…