HTS heading 2939 · Chapter 29
HTS 2939: Alkaloids, natural or reproduced by synthesis, and…
HTS heading 2939 covers alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives. It has 23 tariff lines with a duty rate; the general (MFN) rates are Free (21 lines), 6.5% (1 line), 5.8% (1 line).
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.
Tariff lines and duty rates
| HTS code | Description | General | Special | Column 2 | Estimate |
|---|---|---|---|---|---|
| Alkaloids of opium and their derivatives; salts thereof: | |||||
| 2939.11.00.00 | Concentrates of poppy straw; buprenorphine (INN); codeine, dihydrocodeine (INN), ethylmorphine, etorphine (INN), heroin, hydrocodone (INN), hydromorphone (INN), morphine, nicomorphine (INN), oxycodone (INN), oxymorphone (INN), pholcodine (INN), thebacon (INN) and thebaine; salts thereof[kg] | Free | 15.4¢/kg + 50% | Estimate → | |
| 2939.19 | Other: | ||||
| 2939.19.10.00 | Papaverine and its salts[kg] | Free | 15.4¢/kg + 104% | Estimate → | |
| Other: | |||||
| 2939.19.20.00 | Synthetic[kg] | Free | 15.4¢/kg + 50% | Estimate → | |
| 2939.19.50.00 | Other[g] | Free | 10.6¢/g | Estimate → | |
| 2939.20.00 | Alkaloids of cinchona and their derivatives; salts thereof | Free | Free | ||
| 2939.20.00.10 | Quinine and its salts[g] | Estimate → | |||
| 2939.20.00.50 | Other[g] | Estimate → | |||
| 2939.30.00.00 | Caffeine and its salts[kg] | Free | 59% | Estimate → | |
| Alkaloids of ephedra and their derivatives; salts thereof: | |||||
| 2939.41.00.00 | Ephedrine and its salts[kg] | Free | 15.4¢/kg + 59% | Estimate → | |
| 2939.42.00.00 | Pseudoephedrine (INN) and its salts[kg] | Free | 15.4¢/kg + 59% | Estimate → | |
| 2939.43.00.00 | Cathine (INN) and its salts[kg] | Free | 15.4¢/kg + 59% | Estimate → | |
| 2939.44.00.00 | Norephedrine and its salts[kg] | Free | 15.4¢/kg + 59% | Estimate → | |
| 2939.45.00.00 | Levometamfetamine, metamfetamine (INN), metamfetamine racemate and their salts[kg] | Free | 25% | Estimate → | |
| 2939.49.03.00 | Other[kg] | Free | 15.4¢/kg + 59% | Estimate → | |
| Theophylline and aminophylline (theophylline- ethylenediamine) and their derivatives; salts thereof: | |||||
| 2939.51.00.00 | Fenetylline (INN) and its salts[kg] | Free | 25% | Estimate → | |
| 2939.59.00.00 | Other[kg] | Free | 25% | Estimate → | |
| Alkaloids of rye ergot and their derivatives; salts thereof: | |||||
| 2939.61.00.00 | Ergometrine and its salts[kg] | Free | 25% | Estimate → | |
| 2939.62.00.00 | Ergotamine and its salts[kg] | Free | 25% | Estimate → | |
| 2939.63.00.00 | Lysergic acid and its salts[kg] | Free | 25% | Estimate → | |
| 2939.69.00.00 | Other[kg] | Free | 25% | Estimate → | |
| Other, of vegetal origin: | |||||
| 2939.72.00.00 | Cocaine, ecgonine; salts, esters and other derivatives thereof[kg] | Free | 25% | Estimate → | |
| 2939.79.00 | Other | Free | 25% | ||
| 2939.79.00.10 | Atropine (INN) and its salts[kg] | Estimate → | |||
| 2939.79.00.90 | Other[kg] | Estimate → | |||
| 2939.80.00 | Other | 6.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) | 30.5% | |
| 2939.80.00.10 | Saxitoxin[kg] | Estimate → | |||
| 2939.80.00.50 | Other[kg] | Estimate → | |||
| XIII. OTHER ORGANIC COMPOUNDS | |||||
| 2940.00 | Sugars, chemically pure, other than sucrose, lactose, maltose, glucose and fructose; sugar ethers, sugar acetals and sugar esters, and their salts, other than products of heading 2937, 2938 or 2939: | ||||
| 2940.00.20.00 | D-Arabinose[kg] | Free | 50% | Estimate → | |
| 2940.00.60.00 | Other[kg] | 5.8% | Free (A*,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) | 50% | Estimate → |
29 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 2939.80.00 at the general rate of 6.5%, shipped by ocean, before any Chapter 99 tariffs:
| Base duty (6.5%) | $650.00 |
| Merchandise Processing Fee (0.3464%, min $34.58) | $34.64 |
| Harbor Maintenance Fee (0.125%) | $12.50 |
| Duty and fees | $697.14 |
Origin-specific tariffs can multiply this. Run this example from China or from Mexico to see every line.
Special program codes in this heading
- A, A*, A+
- Generalized System of Preferences (GSP)
- AU
- U.S.–Australia FTA
- BH
- U.S.–Bahrain FTA
- CL
- U.S.–Chile FTA
- CO
- U.S.–Colombia Trade Promotion Agreement
- D
- African Growth and Opportunity Act (AGOA)
- E, E*
- Caribbean Basin Economic Recovery Act
- IL
- U.S.–Israel FTA
- JO
- U.S.–Jordan FTA
- K
- Agreement on Trade in Pharmaceutical Products
- KR
- U.S.–Korea FTA (KORUS)
- MA
- U.S.–Morocco FTA
- OM
- U.S.–Oman FTA
- P, P+
- CAFTA-DR
- PA
- U.S.–Panama Trade Promotion Agreement
- PE
- U.S.–Peru Trade Promotion Agreement
- S, S+
- USMCA (United States–Mexico–Canada Agreement)
- SG
- U.S.–Singapore FTA
A special rate applies only when the goods qualify under that program's rules of origin and the claim is made at entry.
Frequently asked questions
What is the duty rate for HTS 2939?
Heading 2939 has 23 rate lines. The general (MFN) duty rates are Free (21 lines), 6.5% (1 line), 5.8% (1 line). 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 2939?
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 2939?
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.