2834.29.51.00
Other
Nitrites; nitrates: Nitrates: Other
Data provenance: Rates from HTS Revision 16 (Aug 15, 2026); trade measures verified against CBP CSMS and Federal Register notices through Aug 15, 2026.
Duty rates
Column 1 (General / MFN)
3.5%
Column 2 (Non-NTR)
10%
Column 1 (Special / FTA)
Free
Eligible
The rates above are statutory column rates. Trade remedies in Chapter 99 (Section 301, 232, IEEPA, reciprocal) and FTA preferences can change the duty owed on a given entry — see below.
Trade measures (Chapter 99)
9903.90.08
35%
ActiveArticles the product of the Russian Federation, as provided for in U.S. note 30(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 30(b) to this subchapter
Applies to origin: RU, BY
Effective from April 5, 2025
Related CBP rulings
The tariff classification of Calcium Nitrate Tetrahydrate (CAS # 13477-34-4), Copper (II) Sulfate Pentahydrate (CAS # 7758-99-8), Magnesium Sulfate Heptahydrate (CAS # 10034-99-8), Manganese (II) Sulfate Pentahydrate (CAS # 15244-3-7), and Zinc Sulfate Heptahydrate (CAS # 7446-20-0) from an unspecified country
You describe the items as Calcium Nitrate Tetrahydrate (CAS # 13477-34-4), Copper (II) Sulfate Pentahydrate (CAS # 7758-99-8), Magnesium Sulfate Heptahydrate (CAS # 10034-99-8), Manganese (II) Sulfate Pentahydrate (CAS # 15244-3-7), and Zin
The tariff classification of calcium nitrite powder (CAS 13780-06-8) from China
You state in your letter that you plan to import calcium nitrite powder. The sample that you submitted was analyzed by our laboratory.
The tariff classification of Magnesium Nitrate Hexahydrate from Poland
It was determined that your product is not a fertilizer in its imported condition. Magnesium Nitrate Hexahydrate is provided for in heading 2834 in the Harmonized Tariff Schedule (HTS). Additionally this issue is addressed by the Explanator
The tariff classification of Barium Nitrate from China
The tariff classification of Barium Nitrate from China
The tariff classification of X-874, X-875, X-879, MK-9 and DF-102 from Japan
The applicable subheading for X-874 will be 2802.00.0000, Harmonized Tariff Schedule of the United States, (HTS), which provides for Sulfur, sublined or preciptated: colloidal sulfur. The rate of duty will be Free.
The tariff classification of potassium nitrate from Chilewhich according to your letter will be used in metal treatment.
The tariff classification of potassium nitrate from Chilewhich according to your letter will be used in metal treatment.
The tariff classification of calcium nitrate and magnesiumnitrate from West Germany.
The tariff classification of calcium nitrate and magnesiumnitrate from West Germany.
The tariff classification of various chemicals from SouthAfrica.
The tariff classification of various chemicals from SouthAfrica.
Other codes in heading 2834
Duty by origin country
The rate above is the statutory base. Total landed duty depends on origin — see the calculated rate for 2834.29.51.00 from each major US trading partner.
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