The study looked at approximately 1,000 factories that make the raw materials for single-use products.

US-based ExxonMobil is the biggest producer of single-use plastic, the report says, followed by: Dow, Sinopec, Indorama Ventures, Saudi Aramco, PetroChina, LyondellBasell, Reliance Industries, Braskem, Alpek SA de CV, Borealis, Lotte Chemical, INEOS, Total, Jiangsu Hailun Petrochemical, Far Eastern New Century, Formosa Plastics Corporation, China Energy Investment Group, PTT and China Resources.