en.Wedoany.com Reported - The Korea Trade Commission decided at its 474th meeting to impose definitive anti-dumping duties on seamless copper pipes originating from Thailand. The Korea Trade Commission will propose to the Ministry of Economy and Finance to levy anti-dumping duties ranging from 4.93% to 8.41% on the relevant imported products. Previously, South Korea had imposed provisional anti-dumping duties of 3.64% to 8.41% on seamless copper pipes from Thailand starting in March 2026.
Seamless copper pipes, known for their excellent thermal conductivity and corrosion resistance, are widely used in air conditioners, refrigerators, heating and cooling systems, industrial heat exchangers, and HVAC applications. The anti-dumping investigation was formally initiated in September 2025 under case number 23-2025-7. The investigation was filed by domestic producers Neungwon Metal Industry and LS Metal. The dumping investigation period was from January 1, 2024, to December 31, 2024, and the injury investigation period was from January 1, 2022, to June 30, 2025. The products under investigation are seamless copper pipes with an outer diameter of less than 66.68 mm and a wall thickness greater than 0.20 mm but less than 2.50 mm, falling under South Korean tariff heading 7411.10.0000.
According to the final determination, Hoi Leung Metal Company of Hong Kong and its related companies will be subject to an anti-dumping duty of 4.93%, Fine Metal Technologies and its related companies will face a duty of 8.41%, and other Thai exporters will be subject to a rate of 4.93%. The Korea Trade Commission found that the low-priced imports of seamless copper pipes from Thailand caused material injury to the domestic industry, leading to a decline in market share and operating profits for local producers.
Prior to the imposition of definitive anti-dumping duties, South Korea had already imposed provisional anti-dumping duties on seamless copper pipes from Thailand in March 2026. This final ruling represents the conclusion of the investigation initiated in September 2025. The Korea Trade Commission stated that the measure aims to create a level playing field for the domestic manufacturing industry. The decision will be submitted to the Ministry of Economy and Finance for formal implementation.
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