Sierra Madre declares industrial production at the Guitarra mine processing plant
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 that industrial production has begun at the Guitarra mine processing plant in Estado de Mexico, Mexico. The plant Mehr