Imidazole ring compounds from India

India exported $292 million of imidazole ring compounds (HS 2933.29) in FY2025-26, up 13% 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
$292MUp 12.6% on last year
HS code
2933.29Page updated 6 Nov 2026

US import duty, India vs China

India 10%
China 37.5%

India pays 27.5 points less on the lowest-duty line. From the USITC HTS 2026 Rev 22.

All 8 US tariff lines
HTS lineDescriptionBaseIndiaChina
2933.29.05.00 Aromatic or modified aromatic: 1-[1-((4-Chloro-2-(trifluoromethyl)phenyl)- imino)-2-propoxyethyl]-1<i>H</i>-imidazole (Triflumizole); and Ethylene thiourea0% if the goods are for pharmaceutical use Free 10% 37.5%
2933.29.10.00 Aromatic or modified aromatic: 2-Phenylimidazole5.8% if the goods are for pharmaceutical use 5.8% 15.8% 43.3%
2933.29.20.00 Other: Drugs6% if the goods are for pharmaceutical use 6% 16% 43.5%
2933.29.35.00 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%
2933.29.43.00 Other: Other6.5% if the goods are for pharmaceutical use 6.5% 16.5% 44%
2933.29.45.00 Other: Drugs3.7% if the goods are for pharmaceutical use 3.7% 13.7% 41.2%
2933.29.60.00 Other: Imidazole0% if the goods are for pharmaceutical use Free 10% 37.5%
2933.29.90.00 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 imidazole ring compounds

FY2022-23 $321 million
FY2023-24 $272 million
FY2024-25 $259 million
FY2025-26 $292 million

India's exports to all countries under HS 2933.29, April to March, from DGCI&S.

Rules and other duties

EU base duty
The EU's average applied base (MFN) rate on HS 2933.29 is 6%, ranging from 0% to 6.5% across tariff lines, 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 0.7% 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 imidazole ring compounds from India?

10% to 16.5% on the 8 US tariff lines under HS 2933.29, 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 imidazole ring compounds?

2933.29, 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 imidazole ring compounds?

Yes. India exported $292 million under HS 2933.29 in FY2025-26, according to DGCI&S, the Ministry of Commerce's trade statistics body.