Three major olefins accounting for 290 Mt in 2020 (ethylene (56%), propylene (39%) and butadiene (5%)) are used in a wide range of products, dominated by polymers (~84%). Resource efficiency and circular strategies are leveraged by four downstream industriestransportation, construction, fast moving goods and textilesreducing overall demand for olefins by 26-42% between 2020 and 2050. However, demand for ethylene in the energy sector increases by 27 Mt, driven by deployment of wind and solar technologies. Solar panels require specialty chemicals such as ethylvinylacetate or polyvinylfluoride, while wind turbine blades require polyethylene terephthalate for core structural components and chemicals for composite materials (e.g., epoxy, polyvinyl chloride, polyurethane) . Current demand for aromatics is 116 Mt, including benzene (36%), toluene (23%), xylenes (40%)), and is expected to remain flat until 2050 with downstream mechanical recycling providing an important feedstock.