Analysis
HTS 2941.90.30 covers aromatic or modified aromatic under heading 2941 (antibiotics). US Customs collects import statistics for it under 2 ten-digit suffixes, reported in kilograms.
For statistics it divides in two: 2941.90.30.30 for vancomycin (INN) and its salts and 2941.90.30.90 for other. Both pay the same duty; the suffix records which kind was imported.
There is no general-rate duty on this line, which puts it with roughly 26% of the 1050 tariff lines in chapter 29 that are also free. Free here means free of the base duty only: origin-specific Chapter 99 duties such as Section 301 can still be owed.
The other lines in the same group are 2941.90.10 (other: natural, duty-free) and 2941.90.50 (other: other, duty-free).
All 2 neighbouring lines carry the same duty-free rate, so a borderline choice between them changes the statistics reported, not the duty paid.
Every edition we compared, from Jan 2023 to Oct 2026 (Rev. 22), shows the same general rate of Free.
Statistical suffixes
| Code | Description | Units | NAICS |
|---|---|---|---|
| 2941.90.30.30 | Vancomycin (INN) and its salts | kg | |
| 2941.90.30.90 | Other | kg |
Neighbouring lines
| Line | Description | General rate |
|---|---|---|
| 2941.90.10 | Other: natural | Free |
| 2941.90.50 | Other: other | Free |