Analysis
HTS 2917.39.08 covers naphthalic anhydride under heading 2917 (polycarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their…).
Rates on the nearby lines range from duty-free to 6.5%. The costliest confusion would be with 2917.39.70 (other: other) at 6.5%, a difference of 6.5 points on the customs value.
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.
Census statistics map these goods to NAICS 325199 (All Other Basic Organic Chemical Manufacturing), an industry of 894 US establishments employing 77,304 people, the industry a domestic producer of these goods reports under.
The general rate of Free has not changed in any edition of the schedule since Jan 2023.
Neighbouring lines
| Line | Description | General rate |
|---|---|---|
| 2917.39.04 | 1,2,4-Benzenetricarboxylic acid, 1,2-dianhydride (Trimellitic anhydride); Phthalic acid; and 4-Sulfo-1,8-naphthalic anhydride | 6.5% |
| 2917.39.12 | 4,4'-(Hexafluoroisopropylidene)bis(phthalic anhydride) | Free |
| 2917.39.15 | Other: isophthalic acid | 6.5% |
| 2917.39.17 | Tetrabromophthalic anhydride | 6.5% |
| 2917.39.20 | Other: plasticizers | 6.5% |
| 2917.39.30 | Products described in additional U.S. note 3 to section VI | 6.5% |
| 2917.39.70 | Other: other | 6.5% |