HTS 8404

Auxiliary plant for use with boilers of heading 8402 or 8403 (for example, economizers, super-heaters, soot removers, gas recoverers); condensers for steam or other vapor power units; parts thereof

As of Revision 22 (2026), effective Oct 30, 2026Source: USITC HTS ↗

Chapter 99 measures listing products under 8404

9903.88.01 Section 301+25%
Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this…
China2 listed products
9903.88.03 Section 301+25%
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided…
China1 listed product

HTS	Description	General	Column 2
8404.10.00	Auxiliary plant for use with boilers of heading 8402 or 8403	3.5%	45%
8404.10.00.10	Economizers
8404.10.00.50	Other
8404.20.00.00	Condensers for steam or other vapor power units	5%	45%
8404.90.00.00	Parts	3.5%	45%