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HTS 2931.59.00 duty rate

Halogenated organo-phosphorous derivatives: Other. General duty 3.7%; Section 301 China: Not on a Section 301 China list.

3.7%General (MFN) duty rate
Not on a Section 301 China listSection 301, products of China
25%Column 2 (Cuba, North Korea, Russia, Belarus)

Official USITC Harmonized Tariff Schedule, 2026HTSRev20 · data built 2026-10-02 · check on hts.usitc.gov

Tariff line2931.59.00
DescriptionOther organo-inorganic compounds: › Halogenated organo-phosphorous derivatives: › Other
General rate3.7%
Special rate (trade programs)Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG)
Column 2 rate25%
Units of quantitysee statistical lines
Section 301 (China)Not on a Section 301 China list
FootnotesSee 9903.90.08.

Statistical reporting numbers (10-digit)

Report the 10-digit number on the entry; the duty rate is the one above.

CodeDescription
2931.59.00.10O-Alkyl (≤ C10, including cycloalkyl) alkyl (methyl, ethyl,n- propyl or isopropyl) phosphonofluoridates
2931.59.00.15Alkyl (methyl, ethyl, n-propyl or isopropyl) phosphonyl difluorides
2931.59.00.20O-Isopropyl methylphosphonochloridate
2931.59.00.25O-Pinacolyl methylphosphonochloridate
2931.59.00.30P-Alkyl (≤ C10, incl. cycloalkyl) N-(1-(dialkyl (≤ C10, incl. cycloalkyl) amino))alkylidene (H or ≤C10, incl. cycloalkyl) phosphonamidic fluorides and corresponding alkylated or protonated salts
2931.59.00.35Methyl- bis(diethylamino)methylene)phosphonamidofluoridate
2931.59.00.60Containing a phosphorus atom to which one methyl, ethyl, n-propyl or isopropyl group is bonded but no further carbon atoms
2931.59.00.80Other

2026 US–China tariff reduction lists: The US–China reduction lists are not published yet. Dutyfinch checks the Federal Register every day and flags each code as soon as the list appears.

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Nearby tariff lines

2931.10.00 · 2931.20.00 · 2931.41.00 · 2931.42.00 · 2931.43.00 · 2931.44.00 · 2931.45.00 · 2931.46.00 · 2931.47.00 · 2931.48.00 · 2931.49.00 · 2931.51.00 · 2931.52.00 · 2931.53.00 · 2931.54.00 · 2931.90.05 · 2931.90.10 · 2931.90.15 · 2931.90.22 · 2931.90.26 · 2931.90.30 · 2931.90.60 · 2931.90.70 · 2931.90.90

← 2931.54.00 · 2931.90.05 → · Heading 2931 · Chapter 29 · Chapter 29 rate summary

General information from the official US Harmonized Tariff Schedule (USITC) and Federal Register; not legal or customs advice. Section 232, IEEPA, antidumping/countervailing and other duties can also apply. Confirm classification and rates with CBP or a licensed customs broker before you file.