2835.24.00.00
Of potassium
Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined: Phosphates
Duty rates
Column 1 (General / MFN)
3.1%
Column 2 (Non-NTR)
25%
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)
9903.03.01
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United States, before 12:01 a.m. eastern standard time on February 24, 2026; and (2) are entered for consumption, or withdrawn from warehouse for consumption, before 12:01 a.m. eastern standard time on February 28, 2026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 Monopotassium Phosphate from Russia
You identify the subject product as Monopotassium Phosphate (potassium dihydrogen phosphate, potassium phosphate monobasic), CAS number 7778-77-0, with a chemical formula of KH2PO4. Monopotassium Phosphate is a solid inorganic compound, whi
The tariff classification of Aluminum Hypophosphite from India
In your submission, the subject product is identified as Aluminum Hypophosphite, CAS Number: 7784-22-7. Aluminum Hypophosphite is an inorganic chemical compound in white crystalline powder form.
The tariff classification of sodium hexametaphosphate from China
You have indicated that the product at issue is most commonly used as a food additive and also used in the refining process of copper wire production. Your submission states that the molecular formula for sodium hexametaphosphate is (NaPO3)
The tariff classification of various inorganic chemicals from China
Product number 545 is an inorganic compound. It will be used to treat water for corrosion and scale control.
The tariff classification of various organic and inorganic chemicals from China
Product number 646 is an inorganic compound. It will be used to treat water for corrosion and scale control.
The tariff classification of various inorganic chemicals from China
Product number 205 is an inorganic compound. It will be used to treat water for corrosion and scale control.
The tariff classification of various inorganic chemicals from China
Product number 841 is an inorganic compound. It will be used to treat water for corrosion and scale control.
The tariff classification of various inorganic chemicals from China
Product number 312 is an inorganic compound. It will be used to treat water for corrosion and scale control.
The tariff classification of Di-Tert Butyl Potassium Phosphate (CAS # 33494-80-3) from an unspecified country
You describe the item as Di-Tert Butyl Potassium Phosphate (CAS # 33494-80-3). The attached Material Safety Data Sheet, provided by Rhodia UK Limited, indicates that the product at issue will be used under strictly controlled conditions, as
The tariff classification of Lithium iron phosphate (CAS# 15365-14-7) from China.
The product is described as a powder mixture of lithium phosphate and iron phosphate used in the domestic manufacture of battery cells and systems targeted primarily for use in electric and hybrid vehicles and in various electric grid stora
The tariff classification of Tripotassium Phosphate (CAS # 7778-53-2), Monopotassium Phosphate (CAS# 7778-77-0), Magnesium Hydroxide (CAS# 1309-42-8), Xanthan Gum (X-Gum), and Fused Magnesium Oxide.
The first product is described as Tripotassium Phosphate (CAS # 7778-53-2), the second product is described as Monopotassium Phosphate (CAS# 7778-77-0), the third product is described as Magnesium Hydroxide (CAS# 1309-42-8), the fourth prod
The tariff classification and status under the United States-Israel Free Trade Agreement (IFTA), of Sodium Tripolyphosphate Food Grade M 212 Granular from Israel.
The tariff classification and status under the United States-Israel Free Trade Agreement (IFTA), of Sodium Tripolyphosphate Food Grade M 212 Granular from Israel.
Other codes in heading 2835
Duty by origin country
The rate above is the statutory base. Total landed duty depends on origin — see the calculated rate for 2835.24.00.00 from each major US trading partner.
Need to defend this classification?
TariffLens generates GRI reasoning, cites the right CBP rulings, and builds the audit trail you need for reasonable care.
Book a demo →