Harmonized System
U.S. imports of Ash and Residues from Leaded Gasoline and Antiknock Compound Sludges (HS 262021) totaled $4K in September 2026, imported from 1 country.
Ash and Residues from Leaded Gasoline and Antiknock Compound Sludges imports of $4K in September 2026 ran 406% above the year-to-date monthly average of $797.
Last updated: September 2026 dataResidues and sludges arising from the production or use of leaded gasoline and antiknock compounds — including tetraethyl lead formulations — represent a narrow, specialized waste stream that has diminished significantly as leaded fuel has been phased out globally. The United Kingdom is the sole recorded US supplier under this heading, likely reflecting legacy refinery and chemical plant cleanup streams. The US schedule includes a separate line (2620210050) for sludges with recoverable gold content, which can arise when precious metals were used as process catalysts. Given the hazardous nature of lead-bearing materials, EPA and DOT regulations governing hazardous waste imports are relevant alongside customs requirements.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
1 import shipments a month
Beyond customs entry, lead-bearing hazardous waste imports may be subject to EPA regulations under the Resource Conservation and Recovery Act (RCRA) and require prior notification and consent procedures. DOT hazardous materials transport rules also apply. Importers should engage both a licensed customs broker and environmental compliance counsel before arranging shipment.
Line 2620210050 captures sludges that contain recoverable gold, which can occur when precious-metal catalysts were used in refinery or chemical processes alongside antiknock compounds. The separate line allows customs to track the precious-metal content for valuation and statistical purposes, and the gold content may affect the commercial value and processing destination of the material.
Trade Directory
List your company under HS 262021 — Ash and Residues from Leaded Gasoline and Antiknock Compound Sludges, so the companies trading it can find you. Be the first supplier listed.
Subheading 6 of 9 in heading 2620
Subheading 262021 · $4K of $5.3M
ImportsExports
Imports
$4KYoY · free account
Exports
—YoY · free account
Low of 2 reported months · imports
Low · free accountFewer than 6 of the last 12 months reported trade, or the latest month was under $500K; the trend chart is not shown for thin series.
Through September 2026 · imports 2 of 12 months reported, exports 3 of 12 months reported. Source: U.S. Census Bureau.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share |
|---|---|---|---|---|
| 2620210050 | Leaded Gas & Anti-Knock Comp Sludges, Gold Content | — | -- | -- |
Imports · September 2026
origin
customs district
destination
entry
rate provision · imports
duty collected equals 10.00% of imports for consumption.