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Golden Minerals Announces Management Change and Argentine Project Update

DENVER, CO / ACCESS Newswire / September 4, 2026 / Golden Minerals Company ("Golden Minerals," "Golden" or the "Company") (OTCQB:AUMN) and (TSX:AUMN) announces that Pablo Castanos has notified the Company of his resignation from the offices of President and CEO, effective September 30, 2026 to pursue another opportunity. Mr. Castanos will continue to serve as a director of the Company.

Golden Minerals Announces Formation of Sand Canyon Joint Venture

DENVER, CO / ACCESS Newswire / August 4, 2026 / Golden Minerals Company ("Golden" or the "Company") (OTCQB:AUMN)(TSX:AUMN) is pleased to announce that it has completed the formation of Sand Canyon Explorations LLC ("Sand Canyon"), a Delaware limited liability company established as a joint venture with Golden Gryphon USA, Inc. ("GGUSA") to advance the exploration of the parties' mining claims located in Humboldt County, Nevada. In connection with the formation of Sand Canyon, Golden and GGUSA have executed the definitive Limited Liability Company Agreement (the "LLC Agreement") and transferred their respective mining claims to Sand Canyon pursuant to quitclaim deeds.