Lactam heterocyclic compounds from India
India exported $186 million of lactam heterocyclic compounds (HS 2933.79) in FY2025-26, down 1.1% on FY2024-25. Goods made in India pay 10% to 16.5% US import duty, depending on the tariff line, against 37.5% to 44% for goods from China.
- US duty from India
- 10%China 37.5%
- India's exports, FY2025-26
- $186MDown 1.1% on last year
- HS code
- 2933.79Page updated 6 Nov 2026
US import duty, India vs China
India pays 27.5 points less on the lowest-duty line. From the USITC HTS 2026 Rev 22.
All 7 US tariff lines
| HTS line | Description | Base | India | China |
|---|---|---|---|---|
| 2933.79.04.00 | Aromatic or modified aromatic: 2,5-Dihydro-3,6-diphenylpyrrolo-(3,4-<i>c</i>)- pyrrole-1,4-dione0% if the goods are for pharmaceutical use | Free | 10% | 37.5% |
| 2933.79.08.00 | Other: Products described in additional U.S. note 3 to section VI6.5% if the goods are for pharmaceutical use | 6.5% | 16.5% | 44% |
| 2933.79.15.00 | Other: Other6.5% if the goods are for pharmaceutical use | 6.5% | 16.5% | 44% |
| 2933.79.20.00 | Other: <i>N</i>-Methyl-2-pyrrolidone; and 2-Pyrrolidone4.2% if the goods are for pharmaceutical use | 4.2% | 14.2% | 41.7% |
| 2933.79.30.00 | Other: <i>N</i>-Vinyl-2-pyrrolidone, monomer5.5% if the goods are for pharmaceutical use | 5.5% | 15.5% | 43% |
| 2933.79.40.00 | Other: 12-Aminododecanoic acid lactam0% if the goods are for pharmaceutical use | Free | 10% | 37.5% |
| 2933.79.85.00 | Other: Other6.5% if the goods are for pharmaceutical use | 6.5% | 16.5% | 44% |
Totals include the Section 301 duty on goods from India or China and any Section 232 metals duty. They exclude anti-dumping and countervailing duties and customs fees. Check the current rate before you quote.
India's exports of lactam heterocyclic compounds
India's exports to all countries under HS 2933.79, April to March, from DGCI&S.
Rules and other duties
- EU base duty
- The EU's average applied base (MFN) rate on HS 2933.79 is 6.5%, from 2021 data. It doesn't include India's GSP preference, so goods from India may pay less. Check the current rate in TARIC before you quote.
- RoDTEP
- India's schedule lists 0.9% of FOB value for exporters. The scheme was notified until 30 September 2026, so check with DGFT whether it's been extended.
- India's export policy
- Free to export, with no licence needed.
Common questions
What is the US import duty on lactam heterocyclic compounds from India?
10% to 16.5% on the 7 US tariff lines under HS 2933.79, including the Section 301 duty on Indian goods and any Section 232 metals duty. Goods from China pay 37.5% to 44%. Anti-dumping duties and customs fees aren't included.
What is the HS code for lactam heterocyclic compounds?
2933.79, under heading 2933 (Heterocyclic compounds with nitrogen hetero-atom(s) only). Check the exact 8-digit or 10-digit line with your customs broker, since duty can differ between lines.
Does India export lactam heterocyclic compounds?
Yes. India exported $186 million under HS 2933.79 in FY2025-26, according to DGCI&S, the Ministry of Commerce's trade statistics body.