2937.23.50

Analysis

HTS 2937.23.50 covers other: other under heading 2937 (hormones, prostaglandins, thromboxanes and leukotrienes, natural or reproduced by…). US Customs collects import statistics for it under 3 ten-digit suffixes, reported in g.

There is no general-rate duty on this line, which puts it with roughly 26% of the 1050 tariff lines in chapter 29 that are also free. Free here means free of the base duty only: origin-specific Chapter 99 duties such as Section 301 can still be owed.

The other lines in the same group are 2937.23.10 (obtained directly or indirectly from animal or vegetable…, duty-free) and 2937.23.25 (estradiol benzoate; and Estradiol cyclopentylpropionate…, duty-free).

Census statistics map these goods to NAICS 325412 (Pharmaceutical Preparation Manufacturing), an industry of 1,436 US establishments employing 170,029 people, the industry a domestic producer of these goods reports under.

The ten-digit suffixes separate estrogens and progesterone. The duty is the same across them; the suffix matters for statistics, licensing and some quotas, and an entry needs all ten digits.

All 2 neighbouring lines carry the same duty-free rate, so a borderline choice between them changes the statistics reported, not the duty paid.