2918.21.10.00
Suitable for medicinal use
Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives: Carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives: Salicylic acid and its salts
Duty rates
Column 1 (General / MFN)
6.5%
Column 2 (Non-NTR)
15.4¢/kg + 72%
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United States, before 12:01 a.m. eastern standard time on February 24, 2026; and (2) are entered for consumption, or withdrawn from warehouse for consumption, before 12:01 a.m. eastern standard time on February 28, 2026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 cream of tartar from Spain, and eligibility under subheading 9802.00.50, HTSUS
00.50, Harmonized Tariff Schedule of the United States, for cream of tartar from Spain. We referred the information provided to our laboratory for review. We regret the delay. The U.S. origin crude potassium bitartrate (argol or wine lees)
The tariff classification of YMS Methyl Salicylate Pharma and YMS Methyl Salicylate 150 STD from France
The subject products YMS Methyl Salicylate Pharma and YMS Methyl Salicylate 150 STD, are both described as methyl salicylate, CAS No. 119-36-8. You indicate that the YMS Methyl Salicylate Pharma is used primarily in external analgesic drug
The tariff classification of Calcium Lactate Pentahydrate USP (CAS No. 5743-47-5) from China
The subject product, Calcium Lactate Pentahydrate USP is also known as L-Lactic acid calcium salt. It is a salt of lactic acid used in the food industry. You indicate that it will be imported in bulk form.
The tariff classification of DL-Malic acid (CAS No. 6915-15-7) and L-Malic acid (CAS No. 97-67-6) imported in bulk form, from China
DL-Malic acid, CAS No. 6915-15-7, also known as hydroxysuccinic acid is indicated for use as a food additive, acidulant and flavor enhancer. L-Malic acid, CAS No. 97-67-6, also known as L-Apple acid, is indicated for use as a food additive,
The tariff classification of 3,4-Epoxycyclohexylmethyl-3',4'-Epoxycyclohexane Carboxylate, (CAS No. 2386-87-0) from China
The material in question is 3,4-Epoxycyclohexylmethyl-3',4'-Epoxycyclohexane Carboxylate.
The tariff classification of 3,4-Epoxycyclohexylmethyl Methacrylate (CAS # 82428-30-6) from China
The subject product is 3,4-Epoxycyclohexylmethyl Methacrylate (CAS # 82428-30-6) from China. The product will be used in the manufacture of UV curable adhesives or electronic coatings. The product 3,4,-epoxycyclohexlmethyl methacrylate, (CA
The tariff classification of UV 2908 (CAS # 67845-93-6) from China
The subject product is called UV 2908 (CAS # 67845-93-6). It is also known as n-Hexadecyl-3,5-di-tert-butyl-4-hydroxybenzoate, Hexadecyl 4-hydroxy-3,5-bis(2-methyl-2-propanyl)benzoate and Benzoic acid, 3,5-bis(1,1-dimethylethyl)-4-hydroxy-,
Dicamba DMA salt, CAS No. 2003-66-5; DR-CAFTA eligibility
CTL plans to import into the U.S. from Guatemala the Doleac DMA (3,6-dichloro-o-anisic acid-dimethylamine (1:1)), CAS No. 2003-66-5, an herbicide known as Dicamba DMA salt. You state that the Dicamba DMA Salt is classifiable in subheading 3
The tariff classification of Triethyl O-Acetylcitrate (CAS# 77-89-4), imported in liquid form, from the United Kingdom
The subject product is called Triethyl O-Acetylcitrate (CAS# 77-89-4)) imported in liquid form. It is an ester of citric acid. It is indicated for industrial use, as a cosmetic additive, for pharmaceutical use, as raw material for paint, an
The country of origin of 2,4-Dichlorophenoxyacetic 2-ethylhexyl ester (CAS 1928-43-4) emulsion concentrate.
The country of origin of 2,4-Dichlorophenoxyacetic 2-ethylhexyl ester (CAS 1928-43-4) emulsion concentrate.
The tariff classification of Methyl 3,3-dimethoxypropanoate, (CAS 7424-91-1) from China
The subject chemical substance is called Methyl 3,3-dimethoxypropanoate, (CAS 7424-91-1). It consists of an organic substance containing both carboxylic acid and ether functional groups. It is also known as Propanoic acid, 3,3-dimethoxy-, m
The tariff classification of Magnesium Lactate Dihydrate and Zinc Lactate Dihydrate from Austria
The first item is Magnesium Lactate Dihydrate (CAS-No 18917-93-6).
Other codes in heading 2918
Duty by origin country
The rate above is the statutory base. Total landed duty depends on origin — see the calculated rate for 2918.21.10.00 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 →