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.
Common commodities
Seaweed Ash (Kelp)Ash from Municipal Waste IncinerationFly AshBottom AshBoiler SlagMineral Ash from Industrial WasteRefuse AshIncinerator ResidueWaste Combustion ResidueCoal Combustion Ash