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.
Petroleum resins, coumarone-indene resins, polyterpenes, polysulfides, polysulfones and other products specified in note 3 to this chapter, not elsewhere specified or included, in primary forms: › Other:
Elastomeric
Source units: kg
Petroleum resins, coumarone-indene resins, polyterpenes, polysulfides, polysulfones and other products specified in note 3 to this chapter, not elsewhere specified or included, in primary forms: › Other: › Other: › Containing monomer units which are aromatic or modified aromatic, or which are obtained, derived or manufactured in whole or in part therefrom: › Thermoplastic:
Poly(nitrilomethanetetraarylnitrilo- [2,4,6-tris-(1-methyethyl)-1,3- phenylene]]-2,6-bis(1-methylethyl)- phenyl]-ω-[[[2,6-bis(1-methylethyl)- phenyl]amino]methylene]amino carbodiimide or 2,4-diisocyanate-1,3,5-tris(1-methyl- ethyl) homopolymer with polyethylene
Source units: kg
Petroleum resins, coumarone-indene resins, polyterpenes, polysulfides, polysulfones and other products specified in note 3 to this chapter, not elsewhere specified or included, in primary forms: › Other: › Other: › Containing monomer units which are aromatic or modified aromatic, or which are obtained, derived or manufactured in whole or in part therefrom: › Thermoplastic:
Other
Source units: kg
Petroleum resins, coumarone-indene resins, polyterpenes, polysulfides, polysulfones and other products specified in note 3 to this chapter, not elsewhere specified or included, in primary forms: › Other: › Other: › Containing monomer units which are aromatic or modified aromatic, or which are obtained, derived or manufactured in whole or in part therefrom: › Thermosetting:
1,1'-Bis(methylenedi-4,1-phenylene)- 1H-pyrrole-2,5-dione, copolymer with 4,4'-methylenebis(benzeneamine); and Hydrocarbon novolac cyanate ester
Source units: kg
Petroleum resins, coumarone-indene resins, polyterpenes, polysulfides, polysulfones and other products specified in note 3 to this chapter, not elsewhere specified or included, in primary forms: › Other: › Other: › Containing monomer units which are aromatic or modified aromatic, or which are obtained, derived or manufactured in whole or in part therefrom: › Thermosetting:
Other
Source units: kg
Petroleum resins, coumarone-indene resins, polyterpenes, polysulfides, polysulfones and other products specified in note 3 to this chapter, not elsewhere specified or included, in primary forms: › Other: › Other: › Other:
Chlorinated synthetic rubber
Source units: kg
Petroleum resins, coumarone-indene resins, polyterpenes, polysulfides, polysulfones and other products specified in note 3 to this chapter, not elsewhere specified or included, in primary forms: › Other: › Other: › Other:
Other
Petroleum resins, coumarone-indene resins, polyterpenes, polysulfides, polysulfones and other products specified in note 3 to this chapter, not elsewhere specified or included, in primary forms: › Other: › Other: › Other: › Other
Thermoplastic
Source units: kg
Other
Petroleum resins, coumarone-indene resins, polyterpenes, polysulfides, polysulfones and other products specified in note 3 to this chapter, not elsewhere specified or included, in primary forms: › Other: › Other: › Other: › Other
Thermosetting
Source units: kg
Other
Reported average: 2.62857127189636%.
Source year: 2023. Classification: HS 2022 (H6). Checked 2026-09-14.
National lines included: 7 of 7. Excluded from the average: 0.
Reported ad-valorem range: 0%–6.5%.
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 2.63% (2023 MFN average) for Polysulphides, polysulphones and similar products of chemical synthesis n.e.c. in chapter 39; in primary forms.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.
2.63% (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 391190 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 |
|---|---|---|
| 391110 | Petroleum resins, coumarone, indene or coumarone-indene resins and polyterpenes; in primary forms | 6.10% (2023 MFN average)WITS 2023 historical MFN average |
| 391120 | Petroleum resins, poly(1,3-phenylene methylphosphonate), in primary forms | 6.50% (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.