Products A–Z
HS code for sulphonamides
In the UK Trade Tariff’s list of everyday names, “sulphonamides” points to heading 2935: sulphonamides. 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.
In the UK Global Tariff, 2935 covers 43 tariff lines and the duty is between 0% and 6%. 2 of them are duty-free.
The EU Combined Nomenclature divides 2935 into 7 tariff lines; the duty is between 0% and 6.5% (average 5.6%). 1 of them is duty-free.
In the Turkish Customs Tariff Schedule, 2935 covers 18 tariff lines and the duty is between 0% and 6.5%. 1 of them is duty-free.
Duty rates compared
UK Free – 6% Third-country duty 43 tariff lines · average 5.7% 
EU Free – 6.5% Third-country duty 7 tariff lines · average 5.6% 
Türkiye Free – 6.5% Third-country duty 18 tariff lines · average 6.1% 
USA Free – 6.5% General (MFN) 19 tariff lines · average 4.8% 
Canada Free General (MFN) 6 tariff lines 
Mexico Free – 5% General (MFN) 43 tariff lines · average 0.5% 
Brazil Free – 12.6% General (MFN) 24 tariff lines · average 4.1% 
Argentina Free – 12.6% General (MFN) 41 tariff lines · average 2.4% 
Peru Free General (MFN) 7 tariff lines 
New Zealand Free General (MFN) 6 tariff lines 
Japan 3.9% General (MFN) 6 tariff lines 
Taiwan 5% General (MFN) 13 tariff lines 
GCC 5% General (MFN) 6 tariff lines 
Switzerland Free General (MFN) 6 tariff lines 
Norway Free General (MFN) 6 tariff lines 
North Macedonia Free – 5% General (MFN) 7 tariff lines · average 0.7% 
Nigeria 5% General (MFN) 6 tariff lines Questions and answers
What is the HS code for sulphonamides?
Sulphonamides are classified under 2935 (Sulphonamides) in the Harmonized System. National tariffs add more digits; see the lines on this page.