Analysis
HTS 5104.00.00 covers garnetted stock of wool or of fine or coarse animal hair under heading 5104 (garnetted stock of wool or of fine or coarse animal hair).
The normal trade relations rate here is zero, shared by about 35% of the 82 tariff lines in chapter 51, a useful check when a neighbouring dutiable line is a candidate. Duty-free at the general rate does not rule out additional duties under Chapter 99, such as Section 301 or Section 232 measures, which depend on the country of origin.
It is the only US line under subheading 5104.00, so the six-digit code used by every Harmonized System country and the eight-digit US line describe the same goods; a foreign tariff or an exporter's invoice showing 5104.00 points straight here.
Census statistics map these goods to NAICS 314999 (All Other Miscellaneous Textile Product Mills), an industry of 2,241 US establishments employing 26,500 people. That concordance is how imports of this line are compared with US output.
Every edition we compared, from Jan 2023 to Oct 2026 (Rev. 22), shows the same general rate of Free.