EU Issues Affirmative Preliminary Anti-Dumping Ruling on 1,4-Butanediol (BDO) Involving China

February 5, 2026 – The European Commission published a regulation announcing an affirmative preliminary anti-dumping ruling on 1,4-butanediol (BDO) originating in China, Saudi Arabia, and the United States. The ruling imposes provisional anti-dumping duties as follows: 105.6% for Chinese producer Xinjiang Markor Chemical Industry Co., Ltd.; 113.7% for Wanhua Chemical (Sichuan) Co., Ltd; 107.5% for other cooperating Chinese companies (details in the original appendix); and 113.7% for all other Chinese companies. For Saudi Arabia, a provisional duty of 52.4% was set for both International Diol Company and all other Saudi enterprises. For the United States, Lyondell Chemical Company faces a provisional duty of 135.7%, while all other U.S. companies are subject to a duty of 142.5%. The products concerned fall under EU Combined Nomenclature (CN) codes 2905 39 26 and 2905 39 28.

The European Commission initiated this anti-dumping investigation concerning BDO originating in China, Saudi Arabia, and the United States on June 6, 2025. The dumping investigation period covered January 1, 2024, to December 31, 2024, and the injury investigation period spanned from January 1, 2021, to the end of the dumping investigation period.