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Harmonized System
U.S. imports of tetramethyl lead and tetraethyl lead (HS 293110) totaled $303K in July 2026, traded with 2 countries.
Importers of Tetramethyl Lead and Tetraethyl Lead paid $42K in duties in July 2026 — an effective duty rate of 14% on $303K in dutiable value, based on actual customs collections rather than the published tariff schedule. Tetramethyl Lead and Tetraethyl Lead imports of $303K in July 2026 ran 92% above the year-to-date monthly average of $158K.
Last updated: July 2026 dataTetraethyl lead (TEL) and tetramethyl lead (TML) are organo-lead antiknock compounds whose use as gasoline additives has been phased out in most markets under the Clean Air Act and international environmental agreements, leaving residual trade primarily for specialty industrial or research applications. Japan leads US imports under this heading, followed by India and China. EPA regulates these compounds under both TSCA and the Clean Air Act, and importers must be prepared to demonstrate that the intended use does not violate US fuel additive prohibitions.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
2 shipments/mo
These compounds are not categorically banned from import, but their use as gasoline additives in on-road vehicles is prohibited under the Clean Air Act. Any import must be for a lawful purpose — such as aviation fuel applications, research, or export — and importers must be able to document the end use. EPA TSCA Section 13 certification is required, and CBP may request additional documentation to confirm the shipment does not violate fuel additive regulations.
Both are organo-lead antiknock agents, but tetraethyl lead (TEL) historically dominated gasoline blending due to its superior octane-boosting efficiency, while tetramethyl lead (TML) was used in blends requiring a different volatility profile. Today, both are largely obsolete for fuel use in developed markets, and remaining trade is concentrated in niche industrial chemistry, calibration standards, and legacy aviation fuel markets.
HSChapter 29
Subheading 3 of 17 in heading 2931
Subheading 293110 · $303K of $69.3M
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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 |
|---|---|---|---|---|---|
| 2931100000 | Tetramethyl Lead and Tetraethyl Lead | $303K | 13.70% | 100.00% | $42K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2931100000 | Tetramethyl Lead and Tetraethyl Lead | $14K |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
ImportsExports
Imports
$303KYoY · Pro
Exports
$14KYoY · Pro
12-mo low · imports
YoY · ProFewer than 6 of the last 12 months reported trade above $500K; the trend chart is not shown for thin series.
Through July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
Japan and China together supply 100% of it.
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destination
entry
rate provision · imports
the effective duty rate is 13.70%.