OPC UA Walk: a guided tour to demonstrate how OPC UA Companion Specifications supports digitalization in mining. The tour will visit the following companies that explain their motivation for participating in OPC UA activites: talpasolutions (C2.225/11), Siemens (C2.325), Schulte Strathaus (B2.202), Weir Minerals (B2.212), Haver Niagara (B2.149). At the beginning of the tour, we present the interaction of several machines with different controls on demo area (C2.124).  Registrations for the OPC UA Walk: www.vdma.org/viewer/-/v2article/render/68700866