Product classification
HS code for Heptachlor: 2903.82
Halogenated derivatives of cyclanic, cyclenic or cycloterpenic hydrocarbons, aldrin (ISO), chlordane (ISO), and heptachlor (ISO).
Classification of heptachlor under HS 2903.82
Heptachlor is classified under HS code 2903.82. This classification is based on its identity as a specific halogenated derivative of cyclanic, cyclenic, or cycloterpenic hydrocarbons. Heptachlor is an organochlorine compound that was historically used as an insecticide. Under the Harmonized System, pure chemical elements and separate chemically defined compounds are generally classified in Chapter 29. Subheading 2903.82 specifically names Heptachlor (ISO), along with aldrin and chlordane, reflecting international efforts to monitor and control these persistent organic pollutants (POPs). The classification is straightforward for the pure chemical substance. The GRI 1 states that classification is determined by the terms of the headings and any relative section or chapter notes. Since Heptachlor is a halogenated derivative of a cyclanic hydrocarbon, it fits perfectly into the 2903 heading. Because it is a named substance in the 2022 HS nomenclature updates (and previous versions), there is little ambiguity regarding its placement when traded as a technical grade chemical or pure compound.
- Covers
- Pure Heptachlor (ISO)
- Technical grade Heptachlor
- Heptachlor crystals
- Heptachlor solutions in organic solvents (provided they are not formulated for retail)
- Also under 2903.82
- Shell Aldrin (historical)
- Velsicol Chlordane (historical)
- Heptachlor (as a standalone pesticide)
Codes often confused with 2903.82
Common mistake. Heptachlor is most commonly misclassified under HS code 3808.91, which covers insecticides. This occurs when the product is prepared in forms or packings for retail sale or as preparations or articles. However, if the Heptachlor is a separate chemically defined compound (even if containing impurities), Chapter 29 Note 1 dictates it must remain in Chapter 29. Another potential misclassification is 2903.89, the residual category for other halogenated derivatives; however, since Heptachlor is specifically named in 2903.82, the specific code must be used over the general one according to GRI 3(a).
Top exporters and importers of HS 290382 (the code used for heptachlor), 2025
In 2025, the largest exporter of HS 290382 (the code used for heptachlor) in UN Comtrade data was the United States, with 61% of world exports; the largest importer in UN Comtrade data was Taiwan, with about 21% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 290382, not only heptachlor.
Top exporters 2025 · share of world exports
- 1 United States $204K 61% of world exports
- 2 Germany $81K 24% of world exports
- 3 South Africa $17K 5.1% of world exports
World total: $336K Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Taiwan* ~$31K 21% of world imports · partner records ↗
- 2 United States $23K 16% of world imports
- 3 United Kingdom $13K 8.8% of world imports
World total: $143K Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries marked * did not, so their figures add up what other countries recorded trading with them, and their exports are valued at buyers' CIF prices. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. UN Comtrade records Taiwan as "Other Asia, not elsewhere specified". Saudi Arabia's exports under that code are left out: they are far too large to be trade with Taiwan, so mostly undisclosed partners. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM codes for heptachlor
Brazil splits HS 2903.82 into 3 NCM codes. Pick the one that matches your product:
- 2903.82.10Aldrin
- 2903.82.20Chlordane
- 2903.82.30Heptachlor
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about heptachlor
What is the HS code for Heptachlor?
The HS code for Heptachlor is 290382 (Halogenated derivatives of cyclanic, cyclenic or cycloterpenic hydrocarbons; aldrin (ISO), chlordane (ISO), and heptachlor (ISO)). The specific HS code for Heptachlor is 2903.82.
How do I classify Heptachlor for customs?
Heptachlor is classified under HS code 290382 — Halogenated derivatives of cyclanic, cyclenic or cycloterpenic hydrocarbons; aldrin (ISO), chlordane (ISO), and heptachlor (ISO). This is a 6-digit subheading level code.
Is Heptachlor regulated under the Rotterdam Convention?
Yes, Heptachlor is listed under the Rotterdam Convention on the Prior Informed Consent Procedure for Certain Hazardous Chemicals and Pesticides in International Trade, which is why it has a specific, dedicated HS code for monitoring.
Which countries are the top exporters of heptachlor (HS 290382)?
In 2025, the top exporters of HS 290382 (the code used for heptachlor) in UN Comtrade data were the United States ($204K, 61% of world exports), Germany ($81K) and South Africa ($17K). World exports came to about $336K, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of heptachlor (HS 290382)?
In 2025, the top importers of HS 290382 (the code used for heptachlor) in UN Comtrade data were Taiwan (about $31K, 21% of world imports), the United States ($23K) and the United Kingdom ($13K). World imports came to about $143K, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Is the HS code for Heptachlor the same in all countries?
The base HS code 290382 for Heptachlor is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for heptachlor in Brazil?
Brazil splits HS 290382 into 3 NCM codes, so the right one for heptachlor depends on the product's details: 2903.82.10 (Aldrin), 2903.82.20 (Chlordane), 2903.82.30 (Heptachlor).