Municipal Sewage Sludge Incineration Ash
Ash residue from incinerating municipal sewage sludge, rich in phosphorus and metals. It qualifies for HTS 2621.10.00.00 as a residue from municipal waste incineration, distinct from industrial process slags.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | +17.5% | 17.5% |
| 🇲🇽Mexico | Free | +10.0% | 10% |
| 🇨🇦Canada | Free | +10.0% | 10% |
| 🇩🇪Germany | Free | +10.0% | 10% |
| 🇯🇵Japan | Free | +10.0% | 10% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If processed into mineral fertilizer
Shifts to fertilizer heading if refined for direct agricultural application, no longer raw residue.
If used industrially for metal recovery
Only if meeting 2620 criteria for extraction/chemical use, excluding municipal incineration per note.
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Import Tips & Compliance
• Verify sludge as 'municipal waste' via wastewater treatment plant certification
• Include pathogen and nutrient analysis reports for agricultural reuse approvals
• Beware moisture content affecting weight declarations; dry basis reporting may apply
Related Products under HTS 2621.10.00.00
Municipal Solid Waste Incinerator Bottom Ash
Bottom ash collected from the combustion chamber of municipal waste incinerators, consisting of non-combustible residues like glass, metals, and ceramics. It falls under HTS 2621.10.00.00 as it is explicitly ash and residues from the incineration of municipal waste, distinguishing it from industrial slags in heading 2620.
Municipal Waste Fly Ash
Fine particulate fly ash captured from flue gases in municipal solid waste incineration plants, often containing dioxins and heavy metals. Classified under HTS 2621.10.00.00 due to its origin from municipal waste incineration, as per the heading's legal definition excluding it from industrial uses in 2620.
Combined Municipal Incinerator Ash (Bottom and Fly)
Mixture of bottom ash and fly ash from municipal waste incinerators, collected post-combustion for recycling or disposal. HTS 2621.10.00.00 applies as it directly matches 'ash and residues from the incineration of municipal waste,' separate from industrial or seaweed ashes.
Urban Refuse Incinerator Residue
Coarse and fine residues from incinerating household and commercial urban waste in municipal facilities. Falls under HTS 2621.10.00.00 per the specific subheading for municipal waste incineration products.
Municipal Waste-to-Energy Plant Ash
Ash byproducts from waste-to-energy incinerators processing municipal solid waste for electricity generation. Classified in HTS 2621.10.00.00 as residues from municipal incineration, not industrial under 2620.