HS code · 6-digit subheading
HS Code 2621.10 – Slag and ash; ash and residues from the incineration of municipal waste
HS code 2621.10 is the 6-digit subheading for slag and ash, ash and residues from the incineration of municipal waste. It is used for municipal solid waste incinerator bottom ash (IBA), fly ash from municipal waste, mixed metal concentrates from ash, aggregate from IBA and waste-to-energy plant residues.
What HS 2621.10 covers
This HS code specifically covers ash and residues resulting from the incineration of municipal waste. These materials are a significant by-product of waste-to-energy facilities and municipal waste management processes globally. While often considered waste, they can contain valuable recoverable materials, particularly metals, and can also be processed into aggregates for construction. The trade in these residues is driven by environmental management goals, landfill reduction, and the potential for resource recovery. Importers are typically specialized waste processors, construction material producers, or companies involved in metal recovery from ash. Exporters are municipalities, waste management companies, and operators of waste-to-energy plants. Key aspects include managing potential heavy metal contamination, ensuring proper classification for transport, and developing markets for their reuse as secondary raw materials.
- Covers
- Municipal solid waste incinerator bottom ash (IBA)
- Fly ash from municipal waste
- Mixed metal concentrates from ash
- Aggregate from IBA
- Waste-to-energy plant residues
- Examples
- Veolia incinerator ash
- Suez waste-to-energy residues
- municipal waste management by-products
- Ragn-Sells bottom ash
Codes often confused with 2621.10
Common mistake. Can be confused with 262190 (other ash) if not specifically from municipal waste, or 261900 (slag from iron/steel) if the origin is not clearly defined.
Top exporters and importers of HS code 262110, 2025
In 2025, the largest exporter of HS code 262110 in UN Comtrade data was the Netherlands, with 32% of world exports; the largest importer in UN Comtrade data was the Netherlands, with 52% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Top exporters 2025 · share of world exports
- 1 Netherlands $23M 32% of world exports
- 2 United Kingdom $23M 31% of world exports
- 3 Finland $5.5M 7.6% of world exports
World total: $73M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Netherlands $45M 52% of world imports
- 2 Belgium $20M 23% of world imports
- 3 France $5.7M 6.7% of world imports
World total: $85M Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for 2621.10
Brazil does not split HS 2621.10: its NCM code is 2621.10.00.
All Brazil NCM codes in heading 26.21 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 2621.10
What is HS code 262110?
HS code 262110 is a 6-digit subheading in the Harmonized System that covers: Slag and ash; ash and residues from the incineration of municipal waste. This HS code specifically covers ash and residues resulting from the incineration of municipal waste. These materials are a significant by-product of waste-to-energy facilities and municipal waste management processes globally. While often considered waste, they can contain valuable recoverable materials, particularly metals, and can also be processed into aggregates for construction. The trade in these residues is driven by environmental management goals, landfill reduction, and the potential for resource recovery. Importers are typically specialized waste processors, construction material producers, or companies involved in metal recovery from ash. Exporters are municipalities, waste management companies, and operators of waste-to-energy plants. Key aspects include managing potential heavy metal contamination, ensuring proper classification for transport, and developing markets for their reuse as secondary raw materials.
What products fall under HS code 262110?
Municipal solid waste incinerator bottom ash (IBA), fly ash from municipal waste, mixed metal concentrates from ash, aggregate from IBA, waste-to-energy plant residues
What are common misclassifications for HS code 262110?
Can be confused with 262190 (other ash) if not specifically from municipal waste, or 261900 (slag from iron/steel) if the origin is not clearly defined.
Which countries are the top exporters of goods under HS code 262110?
In 2025, the top exporters of HS code 262110 in UN Comtrade data were the Netherlands ($23M, 32% of world exports), the United Kingdom ($23M) and Finland ($5.5M). World exports came to about $73M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of goods under HS code 262110?
In 2025, the top importers of HS code 262110 in UN Comtrade data were the Netherlands ($45M, 52% of world imports), Belgium ($20M) and France ($5.7M). World imports came to about $85M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
How is HS code 262110 structured?
HS code 262110 is a 6-digit subheading under the Harmonized System. The first 2 digits (26) identify the chapter, digits 3-4 (21) identify the heading, and digits 5-6 (10) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 262110?
In Brazil, HS code 262110 is NCM 2621.10.00. The last two digits are 00 because Brazil does not split this HS code further.