Ludo Diels, Dr. in chemistry & biotechnology, is professor emeritus at Antwerp University, former scientific advisor sustainable chemistry at VITO. He is the former chair (and now still member with responsibilities on portfolio, Clean Hydrogen, Circular Bioeconomy in Europe and Advanced Materials Initiative) of the Advisory & Program Group of A. SPIRE. In that function he was chairing the preparation of research and development strategy and programs for the whole process industry in Europe towards climate neutrality, circularity and competitiveness under the Processes4Planet program. He is the chair of the advisory group of the shared research center Biorizon on bio-based aromatics, and as such also strongly involved in the biobased economy in Europe. He is involved in several wastewater treatment projects in India and Thailand. He is member of the Scientific Council of the Nobel Peace Laureates secretariat. As member of the Advisory group of the World Bioeconomy Forum, he is responsible for the pillar on Bioproducts around us. And he is active member of the G-STIC conference (Global Sustainable Technology Innovation Community) and member of the Sustainable Development Solutions Network Belgium.