Saudi Aramco’s US downstream subsidiary Motiva plans to add multiple world-scale ethylene derivatives to its proposed mixed-feed cracker to be integrated with its 635,000 b/d Port Arthur refinery on the US Gulf coast. In a recent filing to the Texas Comptroller’s Office Motiva proposes beginning construction of the plants in the 4Q 2020 with a view to completion on 4Q 2024. Motiva has already submitted proposals for a world-scale cracker at the site, targeting a late-2022...