2931.43.00.00Diethyl ethylphosphonate
HTS Code 2931.43.00.00 covers any article best defined as Products of the Chemical or Allied IndustriesOrganic chemicalsOther organo-inorganic compounds:Non-halogenated organo-phosphorous derivatives:Diethyl ethylphosphonate in the Harmonized Tariff Schedule.
Estimated Duty on 2931.43.00.00
$10,000.00 by ocean, entered Oct 21, 2026
- Total duty
- 23.7%
- $2,370.00 on this shipment
- Fees
- 0.47%
- MPF + HMF · $47.14
- Duty + fees
- 24.17%
- Payable to CBP
- Landed cost
- $12,417.14
- On $10,000.00 customs value
- Base duty3.7%
- Section 301 – China7.5%
- Section 301 – Forced Labor12.5%
- Customs fees0.47%
6 exemptions could lower this
So could Pharmaceutical products and related appendix. Check them against your real shipment details.
Base Duty Rates for 2931.43.00.00
From the Harmonized Tariff Schedule
- General Rate of Duty
- 3.7%
- Special Rate of Duty
- Free
- AAUBHCLCODEILJOKKRMAOMPPAPESSG
- Column 2 (Non-NTR)
- 25%
- Units of Quantity
- kg
- China23.7%
- Mexico13.7%
- Canada13.7%
- Vietnam16.2%
- Germany10%
Tariff updates
Recent US tariff actions that name 2931.43.00.00 or its heading.
- Oct 16, 2026 · CBP guidanceCBP issues HSU 2625 with Section 232 pharmaceutical updates and CPSC flag changes
- Dec 18, 2025 · PublishedUS cuts reciprocal tariff on Swiss and Liechtenstein goods to 15% all-in, exempts certain products
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US Import Duty on HTS 2931.43.00.00 by Country of Origin
As of Oct 21, 2026, US imports of diethyl ethylphosphonate (HTS 2931.43.00.00) from China pay 23.7% in duties: the 3.7% base rate plus Section 301 – China (7.5%) and Section 301 – Forced Labor (12.5%). Of the 20 largest sources of US imports, the lowest total is 10%, from Germany, Taiwan and 3 more.
| Country of origin | Base rate | Additional tariffs | Total duty |
|---|---|---|---|
| China | 3.7% |
| 23.7%12.5% with Pharmaceutical products and related appendix |
| Mexico | 3.7% |
| 13.7%0% with USMCA |
| Canada | 3.7% |
| 13.7%0% with USMCA |
| Vietnam | 3.7% |
| 16.2%12.5% with Pharmaceutical products and related appendix |
| Germany | 3.7% |
| 10%10% with Pharmaceutical products and related appendix |
| Japan | 3.7% |
| 12.5% |
| South Korea | 3.7% |
| 12.5% |
| Taiwan | 3.7% |
| 10%10% with Pharmaceutical products and related appendix |
| India | 3.7% |
| 13.7%10% with Pharmaceutical products and related appendix |
| Ireland | 3.7% |
| 10%10% with Pharmaceutical products and related appendix |
| Italy | 3.7% |
| 10%10% with Pharmaceutical products and related appendix |
| Switzerland | 3.7% |
| 12.5% |
| Thailand | 3.7% |
| 16.2%12.5% with Pharmaceutical products and related appendix |
| Malaysia | 3.7% |
| 13.7%10% with Pharmaceutical products and related appendix |
| United Kingdom | 3.7% |
| 13.7%10% with Pharmaceutical products and related appendix |
| France | 3.7% |
| 10%10% with Pharmaceutical products and related appendix |
| Indonesia | 3.7% |
| 13.7%10% with Pharmaceutical products and related appendix |
| Brazil | 3.7% |
| 41.2%37.5% with Pharmaceutical products and related appendix |
| Bangladesh | 3.7% |
| 13.7%10% with Pharmaceutical products and related appendix |
| Cambodia | 3.7% |
| 13.7%10% with Pharmaceutical products and related appendix |
Duty from each country, in words
- As of Oct 21, 2026, US imports of diethyl ethylphosphonate (HTS 2931.43.00.00) from China pay 23.7% in duties: the 3.7% base rate plus Section 301 – China (7.5%) and Section 301 – Forced Labor (12.5%). With Pharmaceutical products and related appendix, qualifying goods pay 12.5%.
- As of Oct 21, 2026, US imports of diethyl ethylphosphonate (HTS 2931.43.00.00) from Mexico pay 13.7% in duties: the 3.7% base rate plus Section 301 – Forced Labor (10%). With USMCA, qualifying goods pay 0%.
- As of Oct 21, 2026, US imports of diethyl ethylphosphonate (HTS 2931.43.00.00) from Canada pay 13.7% in duties: the 3.7% base rate plus Section 301 – Forced Labor (10%). With USMCA, qualifying goods pay 0%.
- As of Oct 21, 2026, US imports of diethyl ethylphosphonate (HTS 2931.43.00.00) from Vietnam pay 16.2% in duties: the 3.7% base rate plus Section 301 – Forced Labor (12.5%). With Pharmaceutical products and related appendix, qualifying goods pay 12.5%.
- As of Oct 21, 2026, US imports of diethyl ethylphosphonate (HTS 2931.43.00.00) from Germany pay 10% in duties: the 3.7% base rate plus Section 301 – Forced Labor (6.3%). With Pharmaceutical products and related appendix, qualifying goods pay 10%.
- As of Oct 21, 2026, US imports of diethyl ethylphosphonate (HTS 2931.43.00.00) from Japan pay 12.5% in duties: the 3.7% base rate plus Section 301 – Forced Labor (8.8%).
- As of Oct 21, 2026, US imports of diethyl ethylphosphonate (HTS 2931.43.00.00) from South Korea pay 12.5% in duties: the 3.7% base rate plus Section 301 – Forced Labor (8.8%).
- As of Oct 21, 2026, US imports of diethyl ethylphosphonate (HTS 2931.43.00.00) from Taiwan pay 10% in duties: the 3.7% base rate plus Section 301 – Forced Labor (6.3%). With Pharmaceutical products and related appendix, qualifying goods pay 10%.
- As of Oct 21, 2026, US imports of diethyl ethylphosphonate (HTS 2931.43.00.00) from India pay 13.7% in duties: the 3.7% base rate plus Section 301 – Forced Labor (10%). With Pharmaceutical products and related appendix, qualifying goods pay 10%.
- As of Oct 21, 2026, US imports of diethyl ethylphosphonate (HTS 2931.43.00.00) from Ireland pay 10% in duties: the 3.7% base rate plus Section 301 – Forced Labor (6.3%). With Pharmaceutical products and related appendix, qualifying goods pay 10%.
- As of Oct 21, 2026, US imports of diethyl ethylphosphonate (HTS 2931.43.00.00) from Italy pay 10% in duties: the 3.7% base rate plus Section 301 – Forced Labor (6.3%). With Pharmaceutical products and related appendix, qualifying goods pay 10%.
- As of Oct 21, 2026, US imports of diethyl ethylphosphonate (HTS 2931.43.00.00) from Switzerland pay 12.5% in duties: the 3.7% base rate plus Section 301 – Forced Labor (8.8%).
- As of Oct 21, 2026, US imports of diethyl ethylphosphonate (HTS 2931.43.00.00) from Thailand pay 16.2% in duties: the 3.7% base rate plus Section 301 – Forced Labor (12.5%). With Pharmaceutical products and related appendix, qualifying goods pay 12.5%.
- As of Oct 21, 2026, US imports of diethyl ethylphosphonate (HTS 2931.43.00.00) from Malaysia pay 13.7% in duties: the 3.7% base rate plus Section 301 – Forced Labor (10%). With Pharmaceutical products and related appendix, qualifying goods pay 10%.
- As of Oct 21, 2026, US imports of diethyl ethylphosphonate (HTS 2931.43.00.00) from United Kingdom pay 13.7% in duties: the 3.7% base rate plus Section 301 – Forced Labor (10%). With Pharmaceutical products and related appendix, qualifying goods pay 10%.
- As of Oct 21, 2026, US imports of diethyl ethylphosphonate (HTS 2931.43.00.00) from France pay 10% in duties: the 3.7% base rate plus Section 301 – Forced Labor (6.3%). With Pharmaceutical products and related appendix, qualifying goods pay 10%.
- As of Oct 21, 2026, US imports of diethyl ethylphosphonate (HTS 2931.43.00.00) from Indonesia pay 13.7% in duties: the 3.7% base rate plus Section 301 – Forced Labor (10%). With Pharmaceutical products and related appendix, qualifying goods pay 10%.
- As of Oct 21, 2026, US imports of diethyl ethylphosphonate (HTS 2931.43.00.00) from Brazil pay 41.2% in duties: the 3.7% base rate plus Section 301 – Brazil (25%) and Section 301 – Forced Labor (12.5%). With Pharmaceutical products and related appendix, qualifying goods pay 37.5%.
- As of Oct 21, 2026, US imports of diethyl ethylphosphonate (HTS 2931.43.00.00) from Bangladesh pay 13.7% in duties: the 3.7% base rate plus Section 301 – Forced Labor (10%). With Pharmaceutical products and related appendix, qualifying goods pay 10%.
- As of Oct 21, 2026, US imports of diethyl ethylphosphonate (HTS 2931.43.00.00) from Cambodia pay 13.7% in duties: the 3.7% base rate plus Section 301 – Forced Labor (10%). With Pharmaceutical products and related appendix, qualifying goods pay 10%.
Duties on goods entered Oct 21, 2026 at the general rate (Column 2 where it applies), with tariff data verified through 2026 HTS Revision 20. Totals are before customs fees (MPF, HMF) and any antidumping or countervailing duties. Some tariffs and exemptions depend on details such as metal content or end use, which the calculator asks about. See US tariffs for every country.
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Relevant HTS Notes
Official USITC notes that may affect classification under HTS 2931.43.00.00.
Related CROSS Rulings for HTS 2931.43.00.00
CBP classification rulings related to 2931.43.00.00. Open a ruling to read how Customs classified a similar product.
No rulings found
No CROSS classification rulings were found for HTS code "2931.43.00".
What does HTS code 2931.43.00.00 cover?
HTS code 2931.43.00.00 covers diethyl ethylphosphonate, classified under Chapter 29 (Organic chemicals) in the US Harmonized Tariff Schedule. The general duty rate is 3.7%.
What is the duty rate for HTS 2931.43.00.00?
The general (Column 1) rate of duty for HTS 2931.43.00.00 is 3.7%. Goods that qualify for a trade program can enter at the special rate: Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG). The Column 2 rate, for countries without normal trade relations, is 25%. Additional Chapter 99 tariffs, such as Section 301 and Section 232, can apply on top depending on the country of origin.
What is the US tariff on diethyl ethylphosphonate (HTS 2931.43.00.00) from China?
As of Oct 21, 2026, US imports of diethyl ethylphosphonate (HTS 2931.43.00.00) from China pay 23.7% in duties: the 3.7% base rate plus Section 301 – China (7.5%) and Section 301 – Forced Labor (12.5%).
What is the US tariff on diethyl ethylphosphonate (HTS 2931.43.00.00) from Vietnam?
As of Oct 21, 2026, US imports of diethyl ethylphosphonate (HTS 2931.43.00.00) from Vietnam pay 16.2% in duties: the 3.7% base rate plus Section 301 – Forced Labor (12.5%). Goods that qualify for Pharmaceutical products and related appendix pay 12.5%.
What is the US tariff on diethyl ethylphosphonate (HTS 2931.43.00.00) from Mexico?
As of Oct 21, 2026, US imports of diethyl ethylphosphonate (HTS 2931.43.00.00) from Mexico pay 13.7% in duties: the 3.7% base rate plus Section 301 – Forced Labor (10%). Goods that qualify for USMCA pay 0%.
Which country has the lowest US duty on HTS 2931.43.00.00?
Of the 20 largest sources of US imports, the lowest total duty on HTS 2931.43.00.00 is 10%, from Germany, Taiwan and 3 more, as of the tariffs in effect on 2026-10-21.
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