On April 8, 2026, BASF Corporation (“Petitioner”) filed a petition for the imposition of antidumping duties on the imports of polytetramethylene ether glycol (“PTMEG”) from China, South Korea, Taiwan, and Vietnam. The petition alleges dumping margins of 172.71 – 419.88% from China, 116.39 – 132.36% from South Korea, 165.84 – 212.90% from Taiwan, and 78.72 – 295.36% from Vietnam. The petition identifies certain foreign producers/exporters of the investigated product.
The merchandise covered by this investigation is polytetramethylene ether glycol, which is a polymer consisting of linear diols (i.e., organic chemical compound that has two hydroxyl (-OH) functional groups) with a molecular backbone of repeating tetramethylene units (‑CH₂CH₂CH₂CH₂-) interconnected through ether bonds (i.e., a single oxygen atom bonded to two carbon atoms), with a chemical formula HO{(CH2)4}nOH. PTMEG is also referred to as Polytetrahydrofuran, PTHF, Polytetramethylene ether glycol, PTMG, and Polybutylene glycol. PTMEG is typically blended with butylated hydroxytoluene (“BHT”) or another stabilizer. PTMEG is normally associated with Chemical Abstracts Service (“CAS”) registry number 25190-06-1.
The scope includes all forms of PTMEG, regardless of physical form, purity, molecular weight, number of hydroxyls, number of acids, color, density, softening point, glass transition point, flash point, water content, viscosity, and packaging. Please see the petition for a more detailed description of the covered merchandise and exclusions.
The projected date of International Trade Commission’s Preliminary Conference is April 29, 2026. The earliest theoretical date for retroactive suspension of liquidation for AD is June 17, 2026.
Please feel free to contact one of our attorneys for further information, including a complete scope description, complete projected schedule for the AD investigation; the volume and value of imports; and list of identified foreign exporters.