HSChapter 29
U.S. imports of chloromethane and chloroethane (HS 290311) totaled $1.1M in June 2026, traded with 4 countries.
Importers of Chloromethane and Chloroethane paid $173K in duties in June 2026 — an effective duty rate of 15% on $1.1M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: June 2026 dataChloromethane (methyl chloride) and chloroethane (ethyl chloride) are low-boiling halogenated hydrocarbons classified together under heading 290311, with the US schedule separating them at the 10-digit level into 2903110010 and 2903110020 respectively. Methyl chloride is widely used as a methylating agent in silicone and pharmaceutical production, while ethyl chloride serves as a blowing agent and local anesthetic precursor. Germany leads US imports under this heading, with China, the Netherlands, India, and Japan also supplying the market. Both compounds are subject to EPA TSCA certification, and methyl chloride is additionally regulated as an ozone-depleting substance under the Montreal Protocol framework.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Yes. Chloromethane (methyl chloride) is classified as a Class I ozone-depleting substance under the Montreal Protocol and is regulated by the EPA under the Clean Air Act. Importers must comply with EPA allowance and reporting requirements for controlled substances, in addition to standard TSCA certification. The specific regulatory obligations depend on the intended use and quantity imported.
The US tariff schedule separates the two compounds into distinct 10-digit lines: chloromethane (methyl chloride) under 2903110010 and chloroethane (ethyl chloride) under 2903110020. The distinction is based solely on chemical identity — one carbon versus two carbons in the alkyl chain — and must be supported by a Certificate of Analysis or equivalent documentation at entry.
| Country | Imports | Exports | Balance |
|---|---|---|---|
| GERMANY | $1.1M | -- | -$1.1M |
| BRAZIL | -- | $45K | +$45K |
| CANADA | -- | $40K | +$40K |
| CHINA | $19K | -- | -$19K |
| NETHERLANDS | -- | -- | -- |
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Monthly import values over time
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2903110010 | CHLOROMETHANE (METHYL CHLORIDE) | $1.1M | 15.24% | 100.00% | $173K |
| 2903110020 | CHLOROETHANE (ETHYL CHLORIDE) | $0 | -- | -- | -- |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2903110010 | CHLOROMETHANE (METHYL CHLORIDE) | $85K |
NUCLEIC ACIDS & SALTS; OTHER HETEROCYCLIC CMP, NES
HS 293499
POLYPEPTIDE PROTEIN& GLYCOPROTEIN HORMONES &DERIV
HS 293719
CMPDS CONT AN UNFUSED PYRIDINE RING ETC NESOI
HS 293339
BENZENE
HS 290220
HETEROCYCLIC COMP W NITROGEN HETERO-ATM ONLY NESOI
HS 293399
HETEROCYCLIC COMP WITH UNFUSED PYRAZOLE RING NESOI
HS 293319
| Port | Imports | Exports | Balance |
|---|---|---|---|
| SAVANNAH, GA | $784K | -- | -$784K |
| NEW ORLEANS, LA | $221K | -- | -$221K |
| HOUSTON, TX | $108K | -- | -$108K |