Harmonized Tariff Schedule of the United States · HTS code · HS 3501.10
3501.10.50: Casein, caseinates and other casein derivatives: casein, other
Casein
Not declarable on its own: use one of its 1 subdivisions Data: Harmonized Tariff Schedule of the United States · checked on 24 October 2026
- 3501 Casein, caseinates and other casein derivatives; casein glues:
- 3501.10 Casein:
- 3501.10.50 Other
What you pay
Importing into USA
US additional duties of HTS chapter 99 in force on 22 October 2026 are included (Section 301, 232, 338 and 201). IEEPA duties are no longer collected after the Supreme Court ruling of February 2026. Conditional exemptions (US content, end use, metal share) are not computed: check the provision.
Additional duties and import rules
Charges on top of the customs duty, and rules the goods must meet at the border.
Additional duties and charges 2
- Additional dutySection 338 — Canada — discrimination against US alcoholic beverages, dairy, motor vehicles (Proclamations 11046–11048, as modified) 50%
- Applies to goods from
- Canada
- In force
- from 22 August 2026
- Legal act
- HTSUS 9903.03.13
- Additional dutySection 301 — China — technology transfer, IP and innovation (2018 actions and 2024 four-year review) 7.5%
- Applies to goods from
- China
- In force
- from 1 September 2019
- Legal act
- HTSUS 9903.88.15
Same subheading in other tariffs
3501.10 Casein, caseinates and other casein derivatives: casein
UK Free Third-country duty 4 tariff lines 
EU Free – 9% Third-country duty 3 tariff lines · average 4.1% 
Türkiye Free – 9% Third-country duty 3 tariff lines · average 4.1% 
Canada Free General (MFN) 1 tariff line 
Mexico Free General (MFN) 1 tariff line 
Brazil 12.6% General (MFN) 1 tariff line 
Argentina 12.6% General (MFN) 2 tariff lines 
Peru Free General (MFN) 1 tariff line 
New Zealand Free General (MFN) 3 tariff lines 
Japan Free General (MFN) 1 tariff line 
Taiwan 4% General (MFN) 1 tariff line 
GCC 5% General (MFN) 1 tariff line 
Switzerland specific or compound duty General (MFN) 2 tariff lines 
Norway specific or compound duty General (MFN) 1 tariff line 
North Macedonia 2% General (MFN) 3 tariff lines 
Nigeria 5% General (MFN) 1 tariff line USA lines: 3501.10
Legal notes
In the Harmonized Tariff Schedule of the United States, 3501.10.50 is one of 2 lines under subheading 3501.10, casein, caseinates and other casein derivatives: casein.
The general duty is free, and quantities are declared in kg, kg msc.
For the same subheading, the UK duty is free, the EU duty is 0%–9%, the Türkiye duty is 0%–9%, the Canada duty is free, the Mexico duty is free, the Brazil duty is 12.6%, the Argentina duty is 12.6%, the Peru duty is free, the New Zealand duty is free, the Japan duty is free, the Taiwan duty is 4%, the GCC duty is 5%, the North Macedonia duty is 2% and the Nigeria duty is 5%.
The United States imported goods of subheading 3501.10 worth US$296m in 2024; the largest supplier was New Zealand.
Questions and answers
What is the USA import duty for HTS code 3501.10.50?
The general duty in the Harmonized Tariff Schedule of the United States is free; the supplementary unit is kg, kg msc. Preferential rates for goods from agreement countries, anti-dumping duties and VAT are not included.
Where does the United States import these goods from?
For subheading 3501.10 as a whole, the largest supplier in 2024 was New Zealand (US$152m), followed by Ireland.