What documents are required to import HS 31043000 into United States?

Typically required: commercial invoice, packing list, bill of lading / airway bill, certificate of origin (for preferential rates). Confirm latest requirements with USITC Harmonized Tariff Schedule (HTS) 2026.

How to calculate landed cost for importing HS 31043000 into United States?

Use CIF (goods + freight + insurance) × Free = import duty. Then add VAT/GST = landed cost. Treayo provides an online calculator at https://treayo.com/en/calculator/us.

WCO classification path

Chapter31Fertilisers
Heading3104Mineral or chemical fertilisers, potassic
Subheading310430Potassium sulphate
National31043000Potassium sulfate

31043000

ACTIVE

What is the United States import tariff for HS 31043000 (Potassium sulfate)?

Quick answer: United States MFN rate for HS 31043000 is Free.

"Potassium sulfate"

HS code 3104.30.00.00 (Chapter 31 "Fertilisers"; Heading 3104 "Mineral or chemical fertilisers, potassic"; Subheading 310430 "Potassium sulphate") under the United States tariff schedule classifies "Potassium sulfate". United States customs apply MFN rate of Free, Column 2 rate Free. Statutory unit of measure: t.

Tariff Schedule

Classification	Rate	Legal
最惠国税率 (MFN) MFN rate	Free	Official tariff schedule
第二栏税率 Column 2 rate	Free	Official tariff schedule

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HS-6 prefix 3104.30 across other jurisdictions