Customs Import Tariff of Taiwan · CCC code · HS 3907.91
3907.91.00.00: Other polyesters, unsaturated, in primary forms
Unsaturated polyester resins
✓ Can be used in a customs declaration Data: Customs Import Tariff of Taiwan, in force from 24 April 2025 · checked on 24 October 2026
What you pay
Importing into Taiwan
Customs duty only: import VAT, other taxes and trade defence duties of this country are not covered here, and the duty calculator works only with the EU, Türkiye, US and UK tariffs.
Same subheading in other tariffs
3907.91 Polyacetals, other polyethers and epoxide resins: other polyesters, unsaturated
UK Free – 6% Third-country duty 3 tariff lines · average 2% 
EU 6.5% Third-country duty 2 tariff lines 
Türkiye 6.5% Third-country duty 2 tariff lines 
USA Free – 6.5% General (MFN) 3 tariff lines · average 4.1% 
Canada Free General (MFN) 1 tariff line 
Mexico Free – 35% General (MFN) 2 tariff lines · average 17.5% 
Brazil 20% General (MFN) 1 tariff line 
Argentina 12.6% General (MFN) 3 tariff lines 
Peru Free General (MFN) 1 tariff line 
New Zealand Free – 5% General (MFN) 2 tariff lines · average 2.5% 
Japan 3.1% General (MFN) 1 tariff line 
GCC 5% General (MFN) 1 tariff line 
Switzerland Free General (MFN) 1 tariff line 
Norway Free General (MFN) 1 tariff line 
North Macedonia 3% General (MFN) 2 tariff lines 
Nigeria 5% General (MFN) 1 tariff line Binding rulings for similar goods
Decisions of U.S. Customs and Border Protection (CROSS) and HMRC (Advance Tariff Rulings) on goods classified here. A ruling binds only its holder, but shows how the authorities classify similar goods. The descriptions are the authorities’ own, in English.
- N303296 U.S. CBP
The tariff classification of Radpar AD-032 from Japan
- N273662 U.S. CBP
The tariff classification of a thermal spray powder from Germany
- 600010228 HMRC
Castor Polyol Chemically modified castor oil use: production of polyurethane The product is packaged in 1000kg IBC's or 200kg drums
- 600010353 HMRC
Castor polyol D-1145 Chemically modified castor oil use: production of polyurethane The product is packaged in 1000kg IBCs or 200kg drums
Legal notes
CCC code 3907.91.00.00 is a line of the Customs Import Tariff of Taiwan under HS subheading 3907.91 (polyacetals, other polyethers and epoxide resins: other polyesters, unsaturated).
The column 1 rate is 2.5%, and quantities are declared in KGM.
For the same subheading, the UK duty is 0%–6%, the EU duty is 6.5%, the Türkiye duty is 6.5%, the US duty is 0%–6.5%, the Canada duty is free, the Mexico duty is 0%–35%, the Brazil duty is 20%, the Argentina duty is 12.6%, the Peru duty is free, the New Zealand duty is 0%–5%, the Japan duty is 3.1%, the GCC duty is 5%, the Switzerland duty is free, the Norway duty is free, the North Macedonia duty is 3% and the Nigeria duty is 5%.
Taiwan imported goods of subheading 3907.91 worth US$16m in 2024; the largest supplier was China.
Questions and answers
What is the Taiwan import duty for CCC code 3907.91.00.00?
The column 1 rate in the Customs Import Tariff of Taiwan is 2.5%; the supplementary unit is KGM. This page shows the rate as published by the national source and, where the source publishes them, preferential rates: choose the country of origin to see them. Trade defence duties and VAT are not covered.
Where does Taiwan import these goods from?
For subheading 3907.91 as a whole, the largest supplier in 2024 was China (US$6m), followed by the United States.