Asphalt Flux Residue
Asphalt flux residue is the heavy unrefined bottoms from vacuum distillation towers, used as feedstock for asphalt fluxing. Derived from petroleum oils or bituminous minerals, it is not a separate chemically defined compound. It falls under tariff item 2713.90.00 as other residues of petroleum oils, before any fluxing or blending.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the product is petroleum bitumen rather than a residue.
Petroleum bitumen is a distinct heading from other residues.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Confirm the residue is not blended with fluxing agents, as that may change classification
• Provide viscosity and distillation data to support the residue status
• Ensure the product is not classified as petroleum bitumen under 2713.20.00, which has different duty rates
Related Products under Tariff item 2713.90.00
Alkylation Unit Spent Acid Sludge
Alkylation unit spent acid sludge is a hydrocarbon-rich residue recovered from the bottoms of acid settlers in HF or sulfuric acid alkylation units. The organic layer, separated from the spent acid, consists of petroleum oil residues and is not a separate chemically defined compound. It is classified under tariff item 2713.90.00 as other residues of petroleum oils, suitable for fuel recovery.
API Separator Sludge Oil
API separator sludge oil is a hydrocarbon sludge recovered from oil-water separators in refinery wastewater treatment systems. It consists of petroleum oil residues from bituminous minerals, often mixed with water and solids. This material is classified under tariff item 2713.90.00 as other residues of petroleum oils, typically reprocessed for fuel or asphalt blending.
Clarified Sludge Oil from Tank Bottoms
Clarified sludge oil from tank bottoms is the heavy sediment accumulated in petroleum storage tanks, clarified to recover oil residues. It contains petroleum oils from bituminous minerals and is not fit for primary use without further processing. This material is classified under tariff item 2713.90.00 as other residues of petroleum oils.
Coker Quench Oil Residue
Coker quench oil residue is a heavy hydrocarbon residue from delayed coker quench towers, derived from petroleum vacuum resid. It contains pitch-like materials from bituminous oil processing and is not a separate chemically defined compound. It is classified under tariff item 2713.90.00 as other residues of petroleum oils.
Crude Oil Emulsion Breaker Residue
Crude oil emulsion breaker residue is the bottoms from chemical demulsification of crude oil/water emulsions, containing asphaltenes and resins. It is a residue of petroleum oil processing, not a separate chemically defined compound. This material falls under tariff item 2713.90.00 as other residues of petroleum oils, used in drilling mud formulations.
Diesel Hydrotreater Purge Residue
Diesel hydrotreater purge residue is a heavy polynuclear aromatic stream purged from diesel hydrotreating units to maintain product specifications. It is a residue of petroleum oil processing from bituminous materials, not a separate chemically defined compound. It is classified under tariff item 2713.90.00 as other residues of petroleum oils, valuable as asphalt modifier feedstock.