Analysis
HTS 8419.90.30 covers of heat exchange units under heading 8419 (machinery, plant or laboratory equipment, whether or not electrically heated (excluding…).
Neighbouring lines carry rates from duty-free to 4%, so the exact line matters. The widest gap is with 8419.90.95 (other: other), at 4%: a product that belongs there but is entered here, or the reverse, changes the duty by 4 percentage points.
Goods from countries without normal trade relations pay the column 2 rate of 35% instead of nothing, so origin decides between free entry and a 35% duty.
Goods classified here enter the United States duty-free at the general (normal trade relations) rate, as do about 61% of the 823 tariff lines in chapter 84. 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 332410 (Power Boiler and Heat Exchanger Manufacturing), an industry of 237 US establishments employing 23,734 people. That is the industry code a US manufacturer of the same product would normally use.
Neighbouring lines
| Line | Description | General rate |
|---|---|---|
| 8419.90.10 | Of instantaneous or storage water heaters | Free |
| 8419.90.20 | Of machinery and plant for making paper pulp, paper or paperboard | Free |
| 8419.90.50 | Of molten-salt-cooled acrylic acid reactors; of medical, surgical or laboratory sterilizers | Free |
| 8419.90.85 | Of electromechanical tools for working in the hand with self-contained electric motor | Free |
| 8419.90.95 | Other: other | 4% |