On November 7, 2023, the kick-off meeting of the Building Materials Working Group, which was set up by the four recomine projects, took place at the Helmholtz Institute Freiberg for Resource Technology:

• RepNEU – “Remining by fine particle processing of tin tailings from the Ore Mountains with innovative pNEUmatic flotation technology, more sustainable processing strategies and utilization potential of silicate residues in stones and pavers”;
• LiDoVa – “Sustainable recovery of vanadium from LD slags”;
• ResuS – “Recycling of subhydric sediments”;
• Walue – “Holistic recovery of recyclable materials from rolling slag”.

All four projects have a strong research focus on the processing and recycling of mining residues, the development of an efficient technological process and the further implementation of the results for use in construction products.

We would like to thank all those involved from the Helmholtz Institute Freiberg for Resource Technology, the TU Bergakademie Freiberg and the partners from Chemnitz University of Technology and PICON GmbH for discussing common goals on the way to a circular economy.