Chapter 84, Machinery and mechanical appliances / Heading 8419
HTS 8419.50.50.00: Heat exchange units
Schedule text: Other. Classification: 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 › Heat exchange units › Other
General rate of duty
Free
Column 1, USITC schedule
From China, all in
50%
Priced live by the Gateway engine
Section 301 China
25%
List 1
Forced labor 301
exempt
9903.05.90
How the rate is built
Each line is a separate legal authority. They stack on the $10,000 customs value unless a carve-out says otherwise.
| Program | Rate | Amount |
|---|---|---|
General rate of duty (Column 1) Official rate: Free 8419.50.50.00 | 0% | $0.00 |
Section 301 China (List 1) | 25% | $2,500.00 |
Section 232 Aluminum (Derivative) As of April 6, 2026, CBP may assess Section 232 metals duties based on US sales price rather than declared customs value. | 25% | $2,500.00 |
Effective duty rate | 50% | $5,000.00 |
Checked and not applied
- Section 301 forced labor: Exempt: article is already subject to Section 232 duties (9903.05.90, U.S. note 52)
Stack priced from China on a $10,000 customs value, ocean entry. Other origins carry different programs; the calculator prices any of them.
Questions about this example
- What is HTS code 8419.50.50.00?
- HTS 8419.50.50.00 covers heat exchange units; the schedule's own line text is "Other". Its full classification path in the Harmonized Tariff Schedule of the United States is: 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 › Heat exchange units › Other. It sits in chapter 84 (Machinery and mechanical appliances) under heading 8419.
- What is the general duty rate for HTS 8419.50.50.00?
- The Column 1 general rate of duty is Free. That is the most-favored-nation rate before any Section 301, Section 232, Section 338, Section 201 or antidumping and countervailing action, and before CBP's Merchandise Processing and Harbor Maintenance fees.
- What is the tariff on HTS 8419.50.50.00 from China?
- Priced on $10,000 of goods, the effective duty from China is 50%: 0% general rate + 25% Section 301 + 25% Section 232 Aluminum (Derivative). Section 301 applies (List 1). Forced-labor duty: Exempt: article is already subject to Section 232 duties (9903.05.90, U.S. note 52).
- Which lines are related to HTS 8419.50.50.00?
- Neighbouring statistical lines under the same 8-digit heading are listed on this page. All lines under one 8-digit heading share the same legal duty rate; the tenth digit reports statistics.