HTS heading 2923
Quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids, whether or not chemically defined — 10 codes under this heading, with the duty on each.
| Code | Description | General rate | Units |
|---|---|---|---|
| 2923 | Quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids, whether or not chemically defined + Ch. 99 | not stated | — |
| 2923.10.00.00 | Choline and its salts + Ch. 99 | 3.7% | kg |
| 2923.20 | Lecithins and other phosphoaminolipids + Ch. 99 | not stated | — |
| 2923.20.10.00 | Purified egg phospholipids, pharmaceutical grade meeting requirements of the U.S. Food and Drug Administration, for use in intravenous fat emulsion + Ch. 99 | Free | kg |
| 2923.20.20 | Other + Ch. 99 | 5% | — |
| 2923.20.20.10 | Certified organic lecithins + Ch. 99 | 5% (inherited from 2923.20.20) | kg |
| 2923.20.20.50 | Other + Ch. 99 | 5% (inherited from 2923.20.20) | kg |
| 2923.30.00.00 | Tetraethylammonium perfluorooctane sulfonate + Ch. 99 | 6.2% | kg |
| 2923.40.00.00 | Didecylmethylammonium perfluorooctane sulfonate + Ch. 99 | 6.2% | kg |
| 2923.90.01.00 | Other + Ch. 99 | 6.2% | kg |
2 of these lines state no rate of their own and inherit one from the line above, which is how the schedule is read. Each says which line it came from.
Additional duties may apply
10 lines here reference Chapter 99, where Section 301, Section 232 and other additional duties live. Those are charged on top of the general rate and depend on where the goods were made. What those provisions are.
Source: Harmonized Tariff Schedule of the United States, U.S. International Trade Commission (public domain). Classification and the duties that finally apply to a shipment are a licensed customs broker's call.