2831.10.10.00
Sodium formaldehyde sulfoxylate
Dithionites and sulfoxylates: Of sodium
Duty rates
Column 1 (General / MFN)
Free
Column 2 (Non-NTR)
35%
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United States, before 12:01 a.m. eastern standard time on February 24, 2026; and (2) are entered for consumption, or withdrawn from warehouse for consumption, before 12:01 a.m. eastern standard time on February 28, 2026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
Coastwise Transportation; 46 U.S.C. § 55103; 19 C.F.R. § 4.50(b)
You ask whether one individual may be transported on the non-coastwise-qualified M/V CAP CLEVELAND (the “vessel”), from Oakland, California, to Long Beach, California from on or about April 10, 2014, through on or about April 12, 2014. The
The tariff classification of sodium formaldehyde sulfoxylate (CAS 149-44-0) from China and India
Your literature states that you plan to import sodium formaldehyde sulfoxylate (CAS 149-44-0) from two different suppliers, one in China and one in India. You indicate that the product will be imported in a semi-finished crude form and that
The tariff classification of Sodium Hydrosulfite CAS# 7775-14-6 from Europe and Asia
The tariff classification of Sodium Hydrosulfite CAS# 7775-14-6 from Europe and Asia
Internal Advice; Country of origin determination for men'ssuit-type jacket components; 19 CFR Section 102.21(c)(2); tariff shift; 102.21(c)(4); country in which the most important assembly or manufacturing process occurs
are as follows: UNITED STATES fusible material (hereinafter, "interlining") of U.S. origin is cut into pieces for assembly into two front pieces of jacket interlinings are shipped to United States Insular Possession UNITED STATES INSULAR PO
The tariff classification of Soduim Hydrosulfite (CAS# 7775-14-6) from Japan.
The tariff classification of Soduim Hydrosulfite (CAS# 7775-14-6) from Japan.
The tariff classification of sodium formaldehydesulfoxylate, (CAS no 149-44-0) from Germany.
The tariff classification of sodium formaldehydesulfoxylate, (CAS no 149-44-0) from Germany.
The tariff classification of Bruggolite CH and CH 1,Bruggolite EP, Bruggolite TC, Blancolen PX 77 and Blancolen Kfrom Germany.
The tariff classification of Bruggolite CH and CH 1,Bruggolite EP, Bruggolite TC, Blancolen PX 77 and Blancolen Kfrom Germany.
The tariff classification of sodium formaldehyde sulfoxylate (CAS# 149-44-0) from Taiwan.
The tariff classification of sodium formaldehyde sulfoxylate (CAS# 149-44-0) from Taiwan.
Other codes in heading 2831
Duty by origin country
The rate above is the statutory base. Total landed duty depends on origin — see the calculated rate for 2831.10.10.00 from each major US trading partner.
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