According to China Trade Remedies Information Network, on December 30, Korea's Ministry of Planning and Finance issued Notice No. 2025-242, extending the temporary anti-dumping duty period on single-mode optical fibers originating in China by 2 months, from September 19, 2025 to January 18, 2026 to September 19, 2025 to March 18, 2026.

According to China Trade Remedies Information Network, on December 30, Korea's Ministry of Planning and Finance issued Notice No. 2025-242, extending the temporary anti-dumping duty period on single-mode optical fibers originating in China by 2 months, from September 19, 2025 to January 18, 2026 to September 19, 2025 to March 18, 2026.