Products A–Z
HS code for sulphite lye
In the UK Trade Tariff’s list of everyday names, “sulphite lye” points to heading 3804: residual lyes from the manufacture of wood pulp, whether or not concentrated, desugared or chemically treated, including lignin sulphonates, but excluding tall oil of heading 3803. 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 3804 into 2 tariff lines; the duty is duty-free.
3804 is a single line in the EU Combined Nomenclature, where the duty is 5%.
The Turkish Customs Tariff Schedule divides 3804 into 3 tariff lines; the duty is 5%.
Duty rates compared
UK Free Third-country duty 2 tariff lines 
EU 5% Third-country duty 1 tariff line 
Türkiye 5% Third-country duty 3 tariff lines 
USA Free – 3.7% General (MFN) 2 tariff lines · average 1.9% 
Canada Free Third-country duty 1 tariff line 
Mexico Free Third-country duty 2 tariff lines 
Brazil Free – 9% Third-country duty 3 tariff lines · average 6% 
Argentina Free – 9% Third-country duty 6 tariff lines · average 3% 
Peru Free – 6% Third-country duty 2 tariff lines · average 3% 
New Zealand Free Third-country duty 2 tariff lines 
Japan Free Third-country duty 1 tariff line 
Taiwan 3.4% Third-country duty 2 tariff lines 
GCC 5% Third-country duty 1 tariff line 
Switzerland Free Third-country duty 1 tariff line 
Norway Free Third-country duty 1 tariff line 
North Macedonia 5% Third-country duty 1 tariff line 
Nigeria 10% Third-country duty 1 tariff line Questions and answers
What is the HS code for sulphite lye?
Sulphite lye are classified under 3804 (Residual lyes from the manufacture of wood pulp) in the Harmonized System. National tariffs add more digits; see the lines on this page.