HTS 2937.21.00Hormones, prostaglandins, thromboxanes and leukotrienes, natural or reproduced by synthesis; derivatives and structural analogues thereof, including chain modified polypeptides, used primarily as hormones:Steroidal hormones, their derivatives and structural analogues: Cortisone, hydrocortisone, prednisone (dehydrocortisone), and prednisolone (dehydrohydrocortisone)

What that translates to:Cortisone, hydrocortisone, prednisone and prednisolone

Also written 29372100. Rates as CBP is collecting them today. Updated Oct 1, 2026.

Country of origin

Cortisone, hydrocortisone, prednisone and prednisolone (HTS 2937.21.00) from China owe no duty as of Oct 1, 2026: the regular duty is Free and no extra tariffs apply.

Total duty rateFreeNothing to pay on a $10,000 shipment.

Regular dutyBase rate (MFN) in the tariff scheduleFree

Total dutyFree

No forced-labor tariff on this product: it's on the tariff's exemption list (HTS 9903.05.86).

Sources: USITC Harmonized Tariff Schedule, Revision 20 (2026).

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Official description

Hormones, prostaglandins, thromboxanes and leukotrienes, natural or reproduced by synthesis; derivatives and structural analogues thereof, including chain modified polypeptides, used primarily as hormones: Steroidal hormones, their derivatives and structural analogues: Cortisone, hydrocortisone, prednisone (dehydrocortisone), and prednisolone (dehydrohydrocortisone)

Legal text from the Harmonized Tariff Schedule, Revision 20 (2026), chapter 29: Organic chemicals.

Statistical lines

The 10-digit numbers used on entry paperwork. They share this code's duty rates.

2937.21.0010 (2937210010)Cortisone · reported in g
2937.21.0020 (2937210020)Hydrocortisone · reported in g
2937.21.0030 (2937210030)Prednisone · reported in g
2937.21.0040 (2937210040)Prednisolone · reported in g

What changed for this code

Jul 24, 2026Forced-labor tariffs start on imports from 60 economies (Section 301)
Jul 22, 202625% Section 301 tariff on products of Brazil starts
Jan 1, 2026Section 301 tariff on Nicaragua starts at 0%, set to rise to 10% in 2027 and 15% in 2028

Questions about HTS 2937.21.00

What is the duty rate for HTS 2937.21.00?

The regular (column 1 general) rate printed in the tariff schedule is Free. Goods from China owe no duty as of Oct 1, 2026, including any additional tariffs. Additional tariffs depend on the country of origin; choose one above to see its full rate.

Is HTS 2937.21.00 subject to Section 301 tariffs?

Yes, for goods from 1 country as of Oct 1, 2026: Nicaragua. Choose a country above to see the rate and any exemptions.

Is HTS 2937.21.00 subject to Section 232 tariffs?

No Section 232 tariff applies to HTS 2937.21.00 as of Oct 1, 2026, from any country of origin.

HTSLookup shows the duties CBP collects on this code by country of origin. Antidumping or countervailing duties may also apply to some exporters; they're set per company and aren't shown.