Refinery Sludge from Leaded Additive Processing Zinc Content
Sludge byproduct from petroleum refineries processing leaded anti-knock compounds, containing mainly lead with reportable zinc levels. Classified in HTS 2620.21.0030 as leaded anti-knock sludges for use in metal extraction industries.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If from zinc smelting slag rather than fuel additives
Origin from metal smelting shifts to heading 2617 for specific ore residues.
If containing silver compounds predominantly
Precious metal compounds have separate classification in Chapter 28.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Document chain of custody from refinery to prove non-municipal waste origin
• Report only assay zinc quantity; no deductions allowed per statistical notes
Related Products under HTS 2620.21.00.30
Leaded Gasoline Sludge with Zinc Residue
Residue generated from the cleaning of storage tanks that held leaded gasoline, containing mainly lead compounds along with significant zinc content from anti-knock additives. Classified under HTS 2620.21.0030 due to its origin from leaded fuel processing and metal content primarily lead with reportable zinc assay. Used in industry for metal recovery processes.
Tank Bottom Sludge from Leaded Fuel Storage with Zinc
Accumulated sludge from the bottoms of storage tanks that stored leaded gasoline, rich in lead and zinc from additive degradation. HTS 2620.21.0030 applies to such leaded gasoline sludges reporting zinc content, intended for industrial metal reclamation.
Leaded Anti-Knock Compound Sludge with Zinc
Sludge from the production and cleanup of leaded anti-knock additives for gasoline, featuring high lead concentration and zinc as a key metallic component. Falls under HTS 2620.21.0030 for leaded anti-knock sludges with zinc content, suitable for recovery of metals in chemical manufacturing.
Leaded Fuel Sediment with Zinc Impurities
Sediment collected from filtration systems in leaded gasoline production lines, primarily lead-based with zinc from compound interactions. HTS 2620.21.0030 covers these sludges with zinc content for industrial recovery applications.