2937.21.00

Analysis

HTS 2937.21.00 covers cortisone, hydrocortisone, prednisone (dehydrocortisone), and prednisolone (dehydrohydrocortisone) under heading 2937 (hormones, prostaglandins, thromboxanes and leukotrienes, natural or reproduced by…). US Customs collects import statistics for it under 4 ten-digit suffixes, reported in g.

Goods classified here enter the United States duty-free at the general (normal trade relations) rate, as do about 26% of the 1050 tariff lines in chapter 29. Free here means free of the base duty only: origin-specific Chapter 99 duties such as Section 301 can still be owed.

Goods from countries without normal trade relations pay the column 2 rate of 25% instead of nothing, so origin decides between free entry and a 25% duty.

Census statistics map these goods to NAICS 325412 (Pharmaceutical Preparation Manufacturing), an industry of 1,436 US establishments employing 170,029 people. That is the industry code a US manufacturer of the same product would normally use.

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