Sierra Madre announces first silver-gold concentrate shipment
Sierra Madre Gold and Silver Ltd. (TSXV: SM, OTCQX: SMDRF) (“Sierra Madre” or the “Company”) – https://www.commodity-tv.com/ondemand/companies/profil/sierra-madre-gold-silver/ – is pleased to announce first shipments of silver and gold concentrates from the 100% owned Guitarra Mine Complex located in Estado de Mehr








