Sierra Madre Announces Guitarra Processing Plant Achieves Throughputs of up to 720 Tonnes per Day as Development at Nazareno and Guitarra Mines Accelerates
Vancouver, British Columbia--(Newsfile Corp. - September 28, 2026) - Sierra Madre Gold and Silver Ltd. (TSXV: SM) (OTCQX: SMDRF) ("Sierra Madre" or the "Company") is pleased to provide an operational update on activities at its Guitarra silver-gold mine complex in Estado de Mexico, Mexico.Throughput at the Guitarra processing plant has significantly increased following Phase 1 expansion modifications to the existing crushing and milling circuits. Daily production has reached up to a steady 720...