Harmonized Tariff Schedule of the U.S. › Chapter 84 Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof
8419.90.30.00Tariff line
Classification path
Machinery, plant or laboratory equipment, whether or not electrically heated (excluding furnaces, ovens and other equipment of heading 8514), for the treatment of materials by a process involving a change of temperature such as heating, cooking, roasting, distilling, rectifying, sterilizing, pasteurizing, steaming, drying, evaporating, vaporizing, condensing or cooling, other than machinery or plant of a kind used for domestic purposes; instantaneous or storage water heaters, nonelectric; parts thereof
8419
Parts
Of heat exchange units
8419.90.30.00
Rates of duty
General rate (Column 1)Free
Special—
Column 235%
Unitkg
Printed page 2766
Measure flags
for origin CN, entry date 2026-10-26 · base rate Free
- Section 301 forced-labor tariff (12.5%)9903.05.31Applies+12.5%China: Column 1 rate + 12.5% additional
- China 301 List 1 (9903.88.01)9903.88.01Applies+25%8-digit subheading 8419.90.30 is on L1
- 301 exclusion 9903.88.69 (by product description)9903.88.69ConditionalexemptHeat exchanger plates, cores, finned tubes, cones, shells, bonnets, flanges and baffles — only the products described; expires 2026-11-09 11:59 p.m. EDT
- 232 steel / aluminum / copper & derivatives (BIS proposed inclusion, not in effect)proposedInfo—Parts of heat exchange units (description summarizes the proposal; it is not the annex text); BIS inclusion request under review (91 FR 50756) — no duty until a final determination
Confirmed total 37.5% · max 37.5%Full duty breakdown →