China's Commerce Ministry Sets Anti-Dumping Duties on Polyoxymethylene from US, EU, Taiwan, and Japan

China's Ministry of Commerce on Thursday announced the final ruling in its anti-dumping investigation into imported polyoxymethylene copolymer originating from the United States, the European Union, Taiwan, and Japan, setting specific anti-dumping duty rates for the companies involved. According to Reuters, the rates announced are at the enterprise level, with the measures taking effect from May 19.

**Rate Structure and Regional Differences**

Based on disclosed information, the anti-dumping duties reach up to 74.9%, with notable variations across regions and companies. Two companies in Taiwan have received preferential rates, with specific applicable conditions subject to the Ministry of Commerce announcement. Market sources indicate that the investigation was conducted under China's Anti-Dumping Regulations, with the probe tracing back to May of last year.

**Impact on Related Industries**

Polyoxymethylene copolymer is an engineering plastic widely used in automotive parts, electronics, and precision machinery. Imposing anti-dumping duties on major import sources will directly raise the cost of related imported products. Taiwan's Ministry of Economic Affairs stated it has begun assisting local manufacturers in diversifying export markets to reduce dependence on the mainland market. Analysts noted that downstream users may face rising raw material cost pressures in the short term, while domestic polyoxymethylene producers are expected to gain greater market share.

**Policy Signals Amid Trade Frictions**

This anti-dumping measure covers four major trading partners—the US, EU, Taiwan, and Japan—reflecting a broad scope. Against the backdrop of rising global trade protectionism, this move is seen as another case of China using trade remedy tools to protect its domestic industry. However, the ultimate impact of the anti-dumping duties will depend on the actual export adjustments by the companies involved and the pace of downstream substitution in procurement.