Sulfates; alums; peroxosulfates (persulfates)
HTS heading 2833 · chapter 28 · 3 tariff lines · 3 subheadings
Rates below are the general column — the rate for goods from countries with normal trade relations. Compare every line in the heading at once, then open a line for the duty calculator.
Tariff lines in heading 2833
| HTS code | Description | General | Special | Col. 2 |
|---|---|---|---|---|
| 2833.11Disodium sulfate | ||||
| 2833.11.50 | Other | 0.4% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 3.6% |
| 2833.29Other | ||||
| 2833.29.51 | Other | 3.7% | Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) | 30% |
| 2833.40Peroxosulfates (persulfates) | ||||
| 2833.40.60 | Other | 3.1% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% |
Pricing the duty
Open the tariff line that matches your goods — each line page has a calculator that applies the exact rate, including specific duties charged per kilogram.
Open the duty calculatorAbout heading 2833
Heading 2833 covers sulfates; alums; peroxosulfates (persulfates). It splits into 3 six-digit subheadings and 3 US tariff lines, 0 of which are duty-free under the general rate.
Headings are the four-digit level of the Harmonized System — the layer that is identical across all 160-plus countries that use it. The six-digit subheading is also international; the last two digits of each code here are US-specific and do not carry across to another country's tariff.