Press Release Nokia and Boldyn Networks power the future of mining at Callio Pyhäjärvi with private 5G network Deployment enables safer, smarter, and more sustainable operations, where most workforces can operate from above ground. 24 September 2025 Espoo, Finland – Nokia and Boldyn Networks have deployed a private 5G network at the Callio FutureMINE site in Pyhäjärvi, Finland, transforming one of Europe’s deepest mines into a next-generation testbed for mining innovation. Formerly a fully operational cop ...