The 2nd review meeting was held on the 8th and 9th of February 2024, hosted by MYTILINEOS in Arachova, Greece. ReActiv partners and project adviser Mr. D. Paraskevas had the chance to meet again in person (and hybrid for those in different time zones), present all the latest advances from all WPs, and discuss the next steps of the project. On the second day, the physically attending partners had the opportunity to visit the pilot plant and have a guided tour in the actual alumina plant with E. Balomenos presenting.