Analysis
HTS 3907.99.20 covers thermoplastic liquid crystal aromatic polyester copolymers under heading 3907 (polyacetals, other polyethers and epoxide resins, in primary forms; polycarbonates, alkyd…).
Neighbouring lines carry rates from duty-free to 6.5%, so the exact line matters. The widest gap is with 3907.99.50 (other: other), at 6.5%: a product that belongs there but is entered here, or the reverse, changes the duty by 6.5 percentage points.
Goods classified here enter the United States duty-free at the general (normal trade relations) rate, as do about 13% of the 236 tariff lines in chapter 39. Chapter 99 measures such as Section 301 or 232 can still apply on top, depending on where the goods come from.
Census statistics map these goods to NAICS 325211 (Plastics Material and Resin Manufacturing), an industry of 1,285 US establishments employing 88,827 people. That is the industry code a US manufacturer of the same product would normally use.
The general rate of Free has not changed in any edition of the schedule since Jan 2023.
Neighbouring lines
| Line | Description | General rate |
|---|---|---|
| 3907.10.00 | Polyacetals, other polyethers and epoxide resins, in primary forms; polycarbonates, alkyd resins, polyallyl esters and other polyesters, in primary forms: polyacetals | 6.5% |
| 3907.21.00 | Bis(polyoxyethylene) methylphosphonate | 6.5% |
| 3907.29.00 | Other polyethers: other | 6.5% |
| 3907.30.00 | Polyacetals, other polyethers and epoxide resins, in primary forms; polycarbonates, alkyd resins, polyallyl esters and other polyesters, in primary forms: epoxide resins | 6.1% |
| 3907.40.00 | Polyacetals, other polyethers and epoxide resins, in primary forms; polycarbonates, alkyd resins, polyallyl esters and other polyesters, in primary forms: polycarbonates | 5.8% |
| 3907.50.00 | Polyacetals, other polyethers and epoxide resins, in primary forms; polycarbonates, alkyd resins, polyallyl esters and other polyesters, in primary forms: alkyd resins | 6.5% |
| 3907.61.00 | Having a viscosity number of 78 ml/g or higher | 6.5% |
| 3907.69.00 | Poly(ethylene terephthalate): other | 6.5% |
| 3907.70.00 | Polyacetals, other polyethers and epoxide resins, in primary forms; polycarbonates, alkyd resins, polyallyl esters and other polyesters, in primary forms: poly(lactic acid) | 6.5% |
| 3907.91.20 | Allyl resins, uncompounded | Free |
| 3907.91.40 | Allyl resins: other | 5.8% |
| 3907.91.50 | Unsaturated: other | 6.5% |
| 3907.99.50 | Other: other | 6.5% |