Sierra Madre provides update on production expansion and equipment purchases at La Guitarra
Sierra Madre Gold and Silver Ltd. (TSXV: SM) (OTCQX: SMDRF) ("Sierra Madre" or the "Company") (- https://www.commodity-tv.com/play/sierra-madre-gold-silver-site-visit-at-mexicos-newest-silver-and-gold-producer/ -) is pleased to provide an update on the progress of the planned two-stage expansion at its La Guitarra silver-gold mine complex. The Mehr








