According to the China Trade Remedies Information Network, on September 3, 2026, Korea's Ministry of Planning and Finance issued Notice 2026-242 to launch an anti-dumping sunset review investigation against polyester full-stretch yarn originating in China in response to an application submitted by the Korea Chemical Fiber Association on June 29, 2026. The dumping investigation period in this case was from January 1, 2025 to December 31, 2025, and the damage investigation period was from January 1, 2021 to December 31, 2025. The final ruling is expected within six months, unless further adjourned.

According to the China Trade Remedies Information Network, on September 3, 2026, Korea's Ministry of Planning and Finance issued Notice 2026-242 to launch an anti-dumping sunset review investigation against polyester full-stretch yarn originating in China in response to an application submitted by the Korea Chemical Fiber Association on June 29, 2026. The dumping investigation period in this case was from January 1, 2025 to December 31, 2025, and the damage investigation period was from January 1, 2021 to December 31, 2025. The final ruling is expected within six months, unless further adjourned.