Orvana’s El Valle Mine: European Standards for Clean Gold Processing Orvana’s El Valle Mine, operated by subsidiary Orovalle Minerals S.L. in the scenic Rio Narcea Gold Belt of Asturias, northern…
Orvana Minerals: Advancing Clean Gold Processing in Spain’s Historic Mines The Rio Narcea Gold Belt in northern Spain’s Asturias region boasts one of Europe’s richest gold mining histories, dating back…
Orvana Minerals’ El Valle-Boinás: Red Mercury 258 N9 for Sustainable Gold Extraction in Asturias The El Valle-Boinás (EVBC) mine, nestled in the historic Rio Narcea Gold Belt of Asturias, Spain,…
