2620.21.00
Leaded gasoline sludges and leaded anti-knock compound sludges
This code covers sludges and residues containing lead, specifically from leaded gasoline and anti-knock compounds. Use this code when importing these industrial byproducts, as they generally enter the U.S. duty-free, falling within Chapter 26 which deals with ores, slag, and ash.

Detailed information for HTS Code 2620.21.00
This classification covers slag, ash, and residues from industrial processes, specifically within Chapter 26 regarding ores, slag, and ash. Code 2620.21.00 focuses on those containing mainly lead, such as sludges from leaded gasoline and anti-knock compounds, and must consist essentially of lead, lead compounds, and iron oxide. Further breakdowns exist to report the content of copper, lead, zinc, silver, or gold specifically, requiring the selection of the appropriate six-digit suffix based on the primary metallic component being reported; if a product contains multiple metals, multiple suffixes should be used to report each metal’s weight and value. Statistical reporting requires the assay quantity of each metal without deductions, even if it's present in alloys or chemical compounds.
| Chapter | Chapter 26 - Ores, slag and ash |
| Section | Section V - Mineral Products |
Duty snapshot
Quick reference for the duty outcomes tied to this HTS line.
Free
Standard trade partners (NTR)
N/A
Eligible FTA or preference programs
The general duty rate for HTS code 2620.21.00 and its subdivisions (2620.21.00.10 - 2620.21.00.50) is free, applying to standard trade partners (NTR). Special rates are not specified, but eligibility for FTA or preference programs may offer reduced or eliminated duties. Reporting of metal content is required in the following units: Ag g, Au g, Cu kg, Pb kg, and Zn kg, based on assay quantity without deductions, and must be reported for each metal content under corresponding ten-digit statistical reporting numbers when applicable.
Rate of Duty (Column 2): 8.8¢/kg on copper content + 3.3¢/kg on lead content + 3.7¢/kg on zinc content
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Code subdivisions
2620.21.00.10
Slag, ash and residues (other than from the manufacture of iron or steel), containing arsenic, metals or their compounds: > Containing mainly lead: > Leaded gasoline sludges and leaded anti-knock compound sludges > Copper content
2620.21.00.20
Slag, ash and residues (other than from the manufacture of iron or steel), containing arsenic, metals or their compounds: > Containing mainly lead: > Leaded gasoline sludges and leaded anti-knock compound sludges > Lead content
2620.21.00.30
Slag, ash and residues (other than from the manufacture of iron or steel), containing arsenic, metals or their compounds: > Containing mainly lead: > Leaded gasoline sludges and leaded anti-knock compound sludges > Zinc content
2620.21.00.40
Slag, ash and residues (other than from the manufacture of iron or steel), containing arsenic, metals or their compounds: > Containing mainly lead: > Leaded gasoline sludges and leaded anti-knock compound sludges > Silver content
2620.21.00.50
Slag, ash and residues (other than from the manufacture of iron or steel), containing arsenic, metals or their compounds: > Containing mainly lead: > Leaded gasoline sludges and leaded anti-knock compound sludges > Gold content
Chapter & section notes
Chapter notes
Section notes
Latest update
Last updated
November 15, 2025
Revised every January & July
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