This document discusses a project to recover sulfur and metals from waste streams at a chemical platform in Roussillon, France. A laboratory pilot plant is currently operational to study sulfur dioxide absorption. An industrial pilot plant is under construction and aims to concentrate sulfur solutions and further absorb remaining SO2. The objectives are to recover 80% of sulfur from flue gases and wastewater treatment plant effluents. Tests on the laboratory pilot have begun and will continue, while the industrial pilot is scheduled to be operational by June 2023 to help advance circular economy goals at the chemical site.