Products A–Z
HS code for proteins - hardened in primary forms
In the UK Trade Tariff’s list of everyday names, “proteins - hardened in primary forms” points to heading 3913: natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms. Check the description and the notes of the chapter before declaring: the right code depends on what the goods are made of and how they are used.
The UK Global Tariff divides 3913 into 9 tariff lines; the duty is duty-free.
In the EU Combined Nomenclature, 3913 covers 2 tariff lines and the duty is between 5% and 6.5%.
The Turkish Customs Tariff Schedule divides 3913 into 4 tariff lines; the duty is between 5% and 6.5% (average 6.1%).
Duty rates compared
UK Free Third-country duty 9 tariff lines 
EU 5% – 6.5% Third-country duty 2 tariff lines · average 5.8% 
Türkiye 5% – 6.5% Third-country duty 4 tariff lines · average 6.1% 
USA Free – 6.5% General (MFN) 4 tariff lines · average 4.1% 
Canada Free General (MFN) 4 tariff lines 
Mexico Free – 7% General (MFN) 11 tariff lines · average 1.4% 
Brazil Free – 12.6% General (MFN) 10 tariff lines · average 2.5% 
Argentina Free – 12.6% General (MFN) 17 tariff lines · average 1.5% 
Peru Free General (MFN) 5 tariff lines 
New Zealand Free General (MFN) 3 tariff lines 
Japan 3.3% – 3.4% General (MFN) 2 tariff lines · average 3.4% 
Taiwan 2.5% – 5% General (MFN) 6 tariff lines · average 3.7% 
GCC 5% General (MFN) 5 tariff lines 
Switzerland Free General (MFN) 2 tariff lines 
Norway Free General (MFN) 2 tariff lines 
North Macedonia 5% General (MFN) 2 tariff lines 
Nigeria 5% General (MFN) 2 tariff lines See also
Questions and answers
What is the HS code for proteins - hardened in primary forms?
Proteins - hardened in primary forms are classified under 3913 (Natural polymers) in the Harmonized System. National tariffs add more digits; see the lines on this page.