3104.30.00.00
Potassium sulfate
Mineral or chemical fertilizers, potassic
Duty rates
Column 1 (General / MFN)
Free
Column 2 (Non-NTR)
Free
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)
9903.03.01
The duty provided in the applicable subheading + 10%
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Effective from February 24, 2026 through July 24, 2026
9903.03.02
The duty provided in the applicable subheading
Articles the product of any country that (1) were loaded onto a vessel at the port of loading and in transit on the final mode of transit prior to entry into the United States, before 12:01 a.m. eastern standard time on February 24, 2026; and (2) are entered for consumption, or withdrawn from warehouse for consumption, before 12:01 a.m. eastern standard time on February 28, 2026
Effective from February 24, 2026 through July 24, 2026
9903.03.03
The duty provided in the applicable subheading
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Effective from February 24, 2026 through July 24, 2026
9903.03.04
The duty provided in the applicable subheading
Articles the product of any country, as provided for in subdivision (aa)(iii) of U.S. note 2 to this subchapter
Effective from February 24, 2026 through July 24, 2026
9903.03.05
The duty provided in the applicable subheading
Articles of civil aircraft (all aircraft other than military aircraft); their engines, parts and components; their other parts, components and subassemblies; and ground flight simulators and their parts and components of any country, provided for in subdivision (aa)(iv) of U.S. note 2 to this subchapter
Effective from February 24, 2026 through July 24, 2026
9903.03.06
The duty provided in the applicable subheading
Articles of aluminum, of steel, or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; and semiconductor articles, of any country, as provided in subdivision (aa)(v) of U.S. note 2 to this subchapter
Effective from February 24, 2026 through July 24, 2026
9903.03.07
The duty provided in the applicable subheading
Articles the product of Canada, as provided for in subdivision (aa)(vi) of U.S. note 2 to this subchapter
Applies to origin: CA
Effective from February 24, 2026 through July 24, 2026
9903.03.08
The duty provided in the applicable subheading
Articles the product of Mexico, as provided for in subdivision (aa)(vii) of U.S. note 2 to this subchapter
Applies to origin: MX
Effective from February 24, 2026 through July 24, 2026
9903.03.09
The duty provided in the applicable subheading
Articles of textiles or apparel the product of Costa Rica, the Dominican Republic, El Salvador, Guatemala, Honduras or Nicaragua, as provided for in subdivision (aa)(viii) of U.S. note 2 to this subchapter
Applies to origin: CR, SV, GT, HN, NI, DO
Effective from February 24, 2026 through July 24, 2026
9903.03.10
The duty provided in the applicable subheading
Articles that are donations, by persons subject to the jurisdiction of the United States, such as food, clothing and medicine, intended to be used to relieve human suffering
Effective from February 24, 2026 through July 24, 2026
9903.03.11
The duty provided in the applicable subheading
Articles that are informational materials, including but not limited to publications, films, posters, phonograph records, photographs, microfilms, microfiche, tapes, compact disks, CD ROMs, artworks and news wire feeds
Applies to origin: IL
Effective from February 24, 2026 through July 24, 2026
9903.88.03
LIST_1
The duty provided in the applicable subheading + 25%
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Applies to origin: CN
Effective from August 23, 2018
Related CBP rulings
The tariff classification of potassium nitrate, magnesium sulfate heptahydrate, ammonium dihydrogenorthophosphate, potassium dihydrogenorthophosphate, and potassium sulfate from Japan
In your submission, you describe the five subject products as follows: Item Description 1 Product name: OAT HOUSE No.3 Substance/mixture: Substance Chemical name: Potassium nitrate CAS No.: 7757-79-1 Concentration: 99.0% Item Description 2
The tariff classification of “Potassium Chloride” from Canada
” Your submission identifies the subject product as 100% “Potassium Chloride” (CAS No. 7447-40-7), chemical formula KCl, also known as “Muriate of Potash” or “Potassium Salt.” This product will be imported in colorless transparent crystal f
The tariff classification of four “Water Soluble Fertilizers” from Japan
” Your submission identifies Item #1 as OAT HOUSE No. 2. You indicate that this product is a substance containing 98.0% or more calcium nitrate tetrahydrate (CAS No. 13477-34-4). Your submission identifies Item #2 as OAT HOUSE No. 1. You in
The tariff classification of “Glouconite (green sand)” fertilizer from Russia and applicability of any trade program or agreement
You have described the product at issue as a natural fertilizer known as “Glouconite (green sand).” Your submission indicates that this product contains 2.48 percent potassium oxide and several other substances. This product is intended to
The tariff classification of Disodium Molybdate (VI) Dihydrate (CAS # 10102-40-6), Boric Acid (CAS # 10043-35-3), Calcium Chloride Dihydrate (CAS # 10035-04-8), Potassium Sulfate (CAS # 07778-80-5), and Ammonium Nitrate (CAS # 06484-52-2) from an unspecified country
You describe the items as Disodium Molybdate (VI) Dihydrate (CAS # 10102-40-6), Boric Acid (CAS # 10043-35-3), Calcium Chloride Dihydrate (CAS # 10035-04-8), Potassium Sulfate (CAS # 07778-80-5), and Ammonium Nitrate (CAS # 06484-52-2).
The tariff classification of "Disney Car Repair Kit" from China
The item includes toy pliers, screwdriver and wrench, a tool belt with suction cups to hang on a wall, a rinse cup, a Lightening McQueen car cup holder with a circular depression for the cup and 7oz. bottle of body wash. The sample will be
THE COUNTRY OF ORIGIN MARKING OF prepared unrecorded CDs and DVDs.
THE COUNTRY OF ORIGIN MARKING OF prepared unrecorded CDs and DVDs.
The tariff classification of Fertilizer from China
The tariff classification of Fertilizer from China
THE COUNTRY OF ORIGIN MARKING OF CD-Rs from Taiwan.
THE COUNTRY OF ORIGIN MARKING OF CD-Rs from Taiwan.
The tariff classification of Untreated High Quality Granular Potassium Chloride and Special Granular Potassium Chloride from Canada
The tariff classification of Untreated High Quality Granular Potassium Chloride and Special Granular Potassium Chloride from Canada
Other codes in heading 3104
Duty by origin country
The rate above is the statutory base. Total landed duty depends on origin — see the calculated rate for 3104.30.00.00 from each major US trading partner.
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