26,806 official source entries are searchable. Checked 2026-09-22; edition published 2026-09-15.
Printed tariff and statistical lines from this edition, separate from historical WITS averages. Blank duty cells are not a confirmed zero. Review the parent tariff line, general and chapter notes, chapter 99, origin, exclusions, quotas and additional duties. No shipment total or special-rate eligibility is calculated. The edition publication date is not a line-level effective date.
Other organo-inorganic compounds: › Non-halogenated organo-phosphorous derivatives:
2,4,6-Tripropyl-1,3,5,2,4,6-trioxatriphosphinane 2,4,6-trioxide
Source units: kg
Reported average: 3.70000004768372%.
Source year: 2023. Classification: HS 2022 (H6). Checked 2026-09-14.
National lines included: 1 of 1. Excluded from the average: 0.
Reported ad-valorem range: 3.70000004768372%–3.70000004768372%.
Reported historical ad-valorem MFN simple average for 2023, not a national tariff schedule. No preferential rates, additional duties, VAT, excise or import permissions are determined.
Not a current 2026 national duty. The HS6 average does not determine the duty of a particular national subdivision, origin or shipment.
WITS observation for this code and year
UN Comtrade H6 descriptions (HS 2022)
WITS API definitions: reported averages and excluded national lines
Direct HS code answer for United States
The source reports an indicative HS6 MFN average of 3.70% (2023 MFN average) for Non-halogenated organo-phosphorous derivatives; 2,4,6-tripropyl-1,3,5,2,4,6-trioxatriphosphinane 2,4,6-trioxide.Source status: not assessed. Verify the exact national tariff line, origin treatment, taxes, restrictions, and current customs guidance before using this information in a declaration.
3.70% (2023 MFN average)
not assessed
Import planning
Request a one-page research summary with source checks, landed-cost inputs, and points to verify for HS code 293146 in United States.
Each destination shows its own source label. Oman uses its national schedule; Qatar and UAE entries may cite their separately published references and unresolved exceptions. Other entries retain the historical GCC reference. National codes, duty notes, restrictions and tax treatment can differ; verify with the destination customs authority.
| HS Code | Description | Duty |
|---|---|---|
| 293110 | Organo-inorganic compounds; tetramethyl lead and tetraethyl lead | 3.70% (2023 MFN average)WITS 2023 historical MFN average |
| 293120 | Organo-inorganic compounds; tributyltin compounds | 3.70% (2023 MFN average)WITS 2023 historical MFN average |
| 293141 | Non-halogenated organo-phosphorous derivatives; dimethyl methylphosphonate | 3.70% (2023 MFN average)WITS 2023 historical MFN average |
| 293142 | Non-halogenated organo-phosphorous derivatives; dimethyl propylphosphonate | 3.70% (2023 MFN average)WITS 2023 historical MFN average |
| 293143 | Non-halogenated organo-phosphorous derivatives; diethyl ethylphosphonate | 3.70% (2023 MFN average)WITS 2023 historical MFN average |
| 293144 | Non-halogenated organo-phosphorous derivatives; methylphosphonic acid | 3.70% (2023 MFN average)WITS 2023 historical MFN average |
| 293145 | Non-halogenated organo-phosphorous derivatives; salt of methylphosphonic acid and (aminominomethyl) urea (1:1) | 3.70% (2023 MFN average)WITS 2023 historical MFN average |
| 293147 | Non-halogenated organo-phosphorous derivatives; (5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl) methyl methyl methylphosphonate | 3.70% (2023 MFN average)WITS 2023 historical MFN average |
| 293148 | Non-halogenated organo-phosphorous derivatives; 3,9-dimethyl-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5] undecane 3,9-dioxide | 3.70% (2023 MFN average)WITS 2023 historical MFN average |
| 293149 | Non-halogenated organo-phosphorous derivatives; other non-halogenated organo-phosphorous derivatives, n.e.c. in item no. 2931.4 | 3.70% (2023 MFN average)WITS 2023 historical MFN average |
| 293151 | Halogenated organo-phosphorous derivatives; methylphosphonic dichloride | 3.70% (2023 MFN average)WITS 2023 historical MFN average |
| 293152 | Halogenated organo-phosphorous derivatives; propylphosphonic dichloride | 3.70% (2023 MFN average)WITS 2023 historical MFN average |
| 293153 | Halogenated organo-phosphorous derivatives; O-(3-chloropropyl) O-[4-nitro-3-(trifluoromethyl)phenyl] methylphosphonothionate | 3.70% (2023 MFN average)WITS 2023 historical MFN average |
| 293154 | Halogenated organo-phosphorous derivatives; trichlorfon (ISO) | 3.70% (2023 MFN average)WITS 2023 historical MFN average |
| 293159 | Halogenated organo-phosphorous derivatives; other halogenated organo-phosphorous derivatives, n.e.c. in item no. 2931.5 | 3.70% (2023 MFN average)WITS 2023 historical MFN average |
| 293190 | Organo-inorganic compounds; other than tetramethyl lead, tetraethyl lead, tributyltin compounds, and other organo-phosphorous derivatives | 4.67% (2023 MFN average)WITS 2023 historical MFN average |
Data source: WITS/UNCTAD TRAINS (MFN 2022). Values are indicative HS6 MFN averages, not shipment-specific applied rates. Import permission and restrictions are not assessed. Historical reference rates exclude VAT, excise and other national measures. Separate national entries preserve the columns printed by their source; these are not a complete shipment assessment. Full disclaimer.