Heading 3810 · Pickling preparations for metal surfaces; fluxes and other auxiliary…
3810.90
Pickling preparations for metal surfaces; fluxes and other… — Other:
Mentioned in Chapter 99
The parts of Chapter 99, in the 2026 HTS Revision 22, that list HTS 3810.90, a broader code that includes it, or a narrower code within it.
| U.S. note | Excerpt | Headings that refer to it |
|---|---|---|
| U.S. note 20(f) | (f) Heading 9903.88.03 applies to all products of China that are classified in the following 8-digit subheadings, except products of China granted an exclusion by the U.S. Trade Representative and provided for in (1) heading 9903.88.13 and… | 9903.88.03, 9903.88.09 |
| U.S. note 20(iii)(45) | (45) Flux powder consisting wholly of inorganic substances, including but not limited to silicon dioxide, titanium oxide, manganese oxide, aluminum oxide, and calcium fluoride, for submerged arc welding (described in statistical reporting… | 9903.88.56 |
| U.S. note 20(vv)(30) | (30) Flux powder consisting wholly of inorganic substances, including but not limited to silicon dioxide, titanium oxide, manganese oxide, aluminum oxide, and calcium fluoride, for submerged arc welding (described in statistical reporting… | 9903.88.43 |
| U.S. note 20(yy)(18) | (18) 1,3,5-Triazine-2,4,6-triamine, deammoniated (CAS No. 68649-66-1) (described in statistical reporting number | 9903.88.46 |
Being listed is not owing a duty. A note may list goods that a measure leaves out; whether a heading applies depends on the origin, the date and the product; and the measures on all the goods of a country list no code at all. The calculator says what applies.
In the tariff
- 3810Pickling preparations for metal surfaces; fluxes and other auxiliary preparations for soldering, brazing or welding; soldering, brazing or welding powders and pastes consisting of metal and other materials; preparations of a kind used as cores or coatings for welding electrodes or rods
- 3810.90Other
- 3810.90.10.00Containing 5 percent or more by weight of one or more aromatic or modified aromatic substances6.5%
- 3810.90.20.00Consisting wholly of inorganic substancesFree
- 3810.90.50.00Other5%