MOC rules two Daicel companies to inherit anti-dumping duty rates

Two Daicel companies will inherit existing anti-dumping duty rates on polyformaldehyde copolymer exports to the Chinese mainland, the Ministry of Commerce said on Thursday.

Effective Friday, Japan's Daicel Corporation will inherit the 35.5 percent rate applied to Polyplastics Co Ltd, while Daicel HPP Taiwan Co Ltd will take over Polyplastics Taiwan Co Ltd's 3.8 percent rate, according to a ministry statement.

The ministry said the decision followed the transfer of Polyplastics' engineering plastics business to parent company Daicel and the renaming of Polyplastics Taiwan, adding that there had been no material changes to production equipment and capacity, suppliers, customers or sales channels.

Exports made under the former company names will instead be subject to rates for other companies — 35.5 percent for Japanese companies and 32.6 percent for companies in China's Taiwan region, the statement said.

Polyformaldehyde copolymer is an engineering plastic widely used in auto parts, electronic appliances, industrial machinery and medical equipment, according to the ministry.

China imposed five-year anti-dumping duties ranging from 3.8 percent to 74.9 percent on imports of the product originating from the United States, the European Union, China's Taiwan region and Japan in May 2025, according to an earlier ministry announcement.