KGHM Polska Miedź SA and BHP, via BHP World Exploration Inc, have signed a Memorandum of Understanding to create a formal framework for cooperation on copper-focused exploration and development projects. The MoU initiates structured technical dialogue between the two majors on potential joint work, likely covering greenfield targeting, resource definition drilling and project evaluation. For engineers, the move signals possible future collaboration on large-scale porphyry copper systems, shared geoscience datasets and standardised approaches to resource modelling and project development.

Viridis Mining and Minerals has placed its first major equipment order for the Colossus Rare Earth Project in Brazil, selecting a residue pressure filtration package from specialist clay filter press manufacturer Dewater Filter Press Srl of Cagli, Italy. The large pressure filter will handle clay-rich rare earth residues, a critical step for achieving low-moisture filter cakes suitable for dry stacking or controlled storage. The order signals Viridis’ move from project development towards an engineered flowsheet and defined tailings and residue management strategy.

Metso has signed an agreement with Gruvaktiebolaget Viscaria to supply key copper and iron ore process equipment for the restart of the Viscaria mine in Kiruna, Sweden, enabling the project to move into its execution phase. The plant is designed for 120,000 t/y of copper concentrate, positioning Viscaria to become Sweden’s second-largest copper producer. For process and plant engineers, the deal signals imminent demand for detailed flowsheet integration, brownfield tie-ins and Nordic-standard power, water and tailings interfaces.