Chemicals for use in industry; chemicals for use in industry based on artificial photosynthesis or predominantly based on artificial photosynthesis; chemicals for use in industry based on a combination of electrolysis and fermentation or predominantly based on a combination of electrolysis and fermentation; chemicals for use in industry based on carbon dioxide, hydrogen and electricity from renewable energy or renewable energy sources and bacteria or predominantly based on carbon dioxide, hydrogen and electricity from renewable energy or renewable energy sources and bacteria; chemicals used in industry, in particular carbonaceous chemicals for use in industry, based on sustainable feedstock or predominantly based on sustainable feedstock, based on natural feedstock or predominantly based on natural feedstock, based on feedstock with sustainable properties or predominantly based on feedstock with sustainable properties, based on electricity from renewable energy, predominantly based on electricity from renewable energy, based on electricity from renewable energy sources, predominantly based on electricity from renewable energy sources; carbonaceous chemicals for use in industry.