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HTS heading 2936 · Chapter 29

HTS 2936: Provitamins and vitamins, natural or reproduced by…

HTS heading 2936 covers provitamins and vitamins, natural or reproduced by synthesis (including natural concentrates), derivatives thereof used primarily as vitamins, and intermixtures of the foregoing, whether or not in any solvent. It has 13 tariff lines with a duty rate; the general (MFN) rates are Free (13 lines).

Imports may also owe Chapter 99 tariffs (Section 232, 301 or 201) depending on origin and date, plus the Merchandise Processing Fee and, by sea, the Harbor Maintenance Fee.

Rates from the 2026 HTS Revision 22, effective October 30, 2026. Source: U.S. International Trade Commission.

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Tariff lines and duty rates

HTS codeDescriptionGeneralSpecialColumn 2Estimate
Vitamins and their derivatives, unmixed:
2936.21.00.00Vitamins A and their derivatives[kg]Free25%Estimate →
2936.22.00.00Vitamin B1 (Thiamine) and its derivatives[kg]Free25%Estimate →
2936.23.00.00Vitamin B2 (Riboflavin) and its derivatives[kg]Free15.4¢/kg + 62%Estimate →
2936.24.01.00D- or DL-Pantothenic acid (Vitamin B5) and its derivatives[kg]Free25%Estimate →
2936.25.00.00Vitamin B6 (Pyridoxine and related compounds with Vitamin B6 activity) and its derivatives[kg]Free25%Estimate →
2936.26.00.00Vitamin B12 (Cyanocobalamin and related compounds with Vitamin B12 activity) and its derivatives[kg]Free15.4¢/kg + 145.5%Estimate →
2936.27.00.00Vitamin C (Ascorbic acid) and its derivatives[kg]Free25%Estimate →
2936.28.00.00Vitamin E (Tocopherols and related compounds with Vitamin E activity) and its derivatives[kg]Free15.4¢/kg + 63.5%Estimate →
2936.29Other vitamins and their derivatives:
2936.29.10.00Folic acid[kg]Free15.4¢/kg + 49%Estimate →
2936.29.16Niacin and niacinamideFree25%
Niacin:
2936.29.16.10Pharmaceutical grade[kg]Estimate →
2936.29.16.20Other[kg]Estimate →
2936.29.16.30Niacinamide[kg]Estimate →
Other:
2936.29.20.00Aromatic or modified aromatic[kg]Free15.4¢/kg + 45%Estimate →
2936.29.50OtherFree25%
2936.29.50.20Vitamins D and their derivatives[kg]Estimate →
2936.29.50.30Biotin[kg]Estimate →
2936.29.50.50Other[kg]Estimate →
2936.90.01Other, including provitamins and natural concentratesFree25%
2936.90.01.10Provitamins[kg]Estimate →
2936.90.01.50Other[kg]Estimate →

21 lines shown. Statistical suffixes (the last two digits) inherit the rate of the 8-digit subheading above them.

Example: base duty and fees on $10000

For HTS 2936.21.00.00 at the general rate of Free, shipped by ocean, before any Chapter 99 tariffs:

Base duty (Free)$0.00
Merchandise Processing Fee (0.3464%, min $34.58)$34.64
Harbor Maintenance Fee (0.125%)$12.50
Duty and fees$47.14

Origin-specific tariffs can multiply this. Run this example from China or from Mexico to see every line.

Frequently asked questions

What is the duty rate for HTS 2936?

Heading 2936 has 13 rate lines. The general (MFN) duty rates are Free (13 lines). Products of free trade agreement partners may enter at the special rate, and Column 2 rates apply to countries without normal trade relations. Chapter 99 tariffs can be added on top: calculate the full amount.

Do Section 301, 232 or 201 tariffs apply to HTS 2936?

It depends on the 8- or 10-digit subheading, the country of origin, the entry date and, for Section 232, the metal content. These additional duties are listed in Chapter 99 of the HTS. The free duty calculator checks each program for a given code, origin and date and shows which apply and why.

What fees are added to an import under HTS 2936?

Formal entries pay the Merchandise Processing Fee of 0.3464% of value (minimum $34.58, maximum $670.86 in FY2027). Ocean shipments also pay the Harbor Maintenance Fee of 0.125% of value. See the import duty calculator for how they combine.