Analysis
HTS 7017.90.10 covers microscope slides and micro cover glasses under heading 7017 (laboratory, hygienic or pharmaceutical glassware, whether or not graduated or calibrated).
Neighbouring lines carry rates from duty-free to 6.7%, so the exact line matters. The widest gap is with 7017.90.50 (other: other), at 6.7%: a product that belongs there but is entered here, or the reverse, changes the duty by 6.7 percentage points.
Goods from countries without normal trade relations pay the column 2 rate of 85% instead of nothing, so origin decides between free entry and a 85% duty.
Goods classified here enter the United States duty-free at the general (normal trade relations) rate, as do about 28% of the 192 tariff lines in chapter 70. 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 7017.10.30 (quartz reactor tubes and holders designed for insertion…, duty-free), 7017.10.60 (of fused quartz or other fused silica: other, 4.6%), 7017.20.00 (of other glass having a linear coefficient of expansion not…, 6.7%) and 7017.90.50 (other: other, 6.7%).
Neighbouring lines
| Line | Description | General rate |
|---|---|---|
| 7017.10.30 | Quartz reactor tubes and holders designed for insertion into diffusion and oxidation furnaces for production of semiconductor wafers | Free |
| 7017.10.60 | Of fused quartz or other fused silica: other | 4.6% |
| 7017.20.00 | Of other glass having a linear coefficient of expansion not exceeding 5 x 10-6 per Kelvin within a temperature range of 0°C to 300°C | 6.7% |
| 7017.90.50 | Other: other | 6.7% |