What is the import duty on heat exchange units from China?

On HTS 8419.50.50.00 the effective duty rate is 50% (0% general rate + 25% Section 301 + 25% Section 232 Aluminum (Derivative)). On a $10,000 customs value that is $5,000 in duty before CBP fees.

Which tariff programs apply to HTS 8419.50.50.00 from China?

Section 301 China (List 1) at 25%; Section 232 Aluminum (Derivative) at 25%. Checked and not applied: Section 301 forced labor (Exempt: article is already subject to Section 232 duties (9903.05.90, U.S. note 52)).

What does CBP charge on top of the duty?

The Merchandise Processing Fee at 0.3464% of value, $34.64 here, subject to the statutory minimum and maximum. The Harbor Maintenance Fee at 0.125% on ocean entries, $12.50 here. Total government fees on this shipment: $47.14. Collected by U.S. Customs and Border Protection.

Is this the exact amount my customs broker will collect?

It is a planning estimate priced by the Gateway tariff engine on the assumptions shown: HTS 8419.50.50.00, China origin, $10,000 customs value, ocean transport. The entered classification, the appraised value, the entry date and any exclusion or program claim change the result, and antidumping or countervailing rates are exporter-specific. Run your own numbers in the calculator and confirm with a licensed broker.

Machinery and electronics / HTS 8419.50.50.00

Heat exchange units from China: 50% import duty

A worked example on a $10,000 commercial shipment of other heat exchange units for treatment of materials by temperature-changing processes. Priced Sep 2, 2026 by the Gateway tariff engine, the same engine behind the calculator, with every active duty program stacked and every carve-out shown.

Effective duty rate

50%

All active programs stacked

Duties on $10,000

$5,000

Ad valorem duty amount

CBP fees

$47.14

MPF and HMF, ocean entry

Landed cost

$15,047.14

Goods, duties and fees

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	Heading	Rate	Amount
General rate of duty (Column 1) Official rate: Free 8419.50.50.00	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)

Notes for this line

Section 301 China tariff (List 1) adds 25% to this product.
Section 232 Aluminum (Derivative) tariff adds 25%.
Section 301 forced labor does not apply to this line: Exempt: article is already subject to Section 232 duties (9903.05.90, U.S. note 52).

What changed on this lane

57.5% before the first entry below, 50% today.

Feb 20, 2026IEEPA tariffs removed (SCOTUS)-20 pts
Jul 24, 2026Section 301 forced labor: articles the product of China (U.S. note 52) added+12.5 pts

Official classification

8419.50.50.00Other

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

Source: Harmonized Tariff Schedule of the United States, USITC, current revision. General rate of duty (Column 1) as published; Chapter 99 headings as listed in the table above.

More from China

Other lines importers price from the same origin.

Questions about this example

What is the import duty on heat exchange units from China?: On HTS 8419.50.50.00 the effective duty rate is 50% (0% general rate + 25% Section 301 + 25% Section 232 Aluminum (Derivative)). On a $10,000 customs value that is $5,000 in duty before CBP fees.
Which tariff programs apply to HTS 8419.50.50.00 from China?: Section 301 China (List 1) at 25%; Section 232 Aluminum (Derivative) at 25%. Checked and not applied: Section 301 forced labor (Exempt: article is already subject to Section 232 duties (9903.05.90, U.S. note 52)).
What does CBP charge on top of the duty?: The Merchandise Processing Fee at 0.3464% of value, $34.64 here, subject to the statutory minimum and maximum. The Harbor Maintenance Fee at 0.125% on ocean entries, $12.50 here. Total government fees on this shipment: $47.14. Collected by U.S. Customs and Border Protection.
Is this the exact amount my customs broker will collect?: It is a planning estimate priced by the Gateway tariff engine on the assumptions shown: HTS 8419.50.50.00, China origin, $10,000 customs value, ocean transport. The entered classification, the appraised value, the entry date and any exclusion or program claim change the result, and antidumping or countervailing rates are exporter-specific. Run your own numbers in the calculator and confirm with a licensed broker.

Estimate for planning purposes only, priced on the assumptions stated above. Actual duties depend on the entered classification, the appraised value, the entry date and any program or exclusion claimed, and antidumping or countervailing rates are exporter-specific. Gateway Lines is not a licensed customs broker; confirm official determinations with one.