Section V — Mineral products
Chapter 26 — Ores, slag and ash
Heading 2621 — Other slag and ash, including seaweed ash (kelp); ash and residues from the incineration of municipal waste.
Subheading 2621.90 — Other
HS code
2621.90.90 Slag & ash excl metals, coal-fired power plant, residual of incrination of municipal was
Last Verified Date - 1 October 2026
Common commodities
Industrial Furnace Fly AshKelp Ash from Harvesting ProcessesNon-Metallic Bottom Ash from Coal Power PlantsSeaweed Incineration ResidueGeneral Industrial Slag WasteCoal-Fired Boiler Fly AshAsh from Mineral Processing OperationsKelp Combustion RemainsNon-Metallic Waste from Fossil Fuel CombustionIndustrial Incineration Residue (N.E.S.)