HS Code 2621: Slag and ash n.e.c. in chapter 26; including seaweed ash (kelp) and ash and residues from the incineration of municipal waste

Q: Is HS code 2621 the same in every country?

Yes — HS code 2621 is part of the WCO Harmonized System and is the same in every WCO member country at the 6-digit level. Beyond 6 digits, each country extends the code under its own system (e.g. HTSUS in the US, CN/TARIC in the EU, HSK in Korea, CCCHS in China) for national tariff rates and trade statistics. To see how a specific country classifies this code, select a country.

Q: Which WCO edition does HS code 2621 belong to, and has it been reclassified?

The Harmonized System is maintained by the World Customs Organization (WCO) and revised approximately every five years. The current edition is HS 2022, which replaced HS 2017 on 1 January 2022. Codes are added, merged, or split between editions to reflect new products and trade patterns, so a code valid in one edition may not exist or may mean something different in another.

Q: How do I find the correct country-specific version of HS code 2621?

Beyond the international 6-digit level, each country adds its own digits — the US extends to 10 digits (HTSUS), the EU to 8 or 10 (CN/TARIC), China to 13 (CCCHS), Korea to 10 (HSK), Japan to 9, and so on. To find the full code used by a specific country, select a country in TradeInt's HS Code Tool and search for 2621.

What is HS Code 2621

HS Code 2621 covers Slag and ash n.e.c. in chapter 26; including seaweed ash (kelp) and ash and residues from the incineration of municipal waste. It is a 4-digit heading within Chapter 26 (Ores, slag and ash), Section V. Its 6-digit subheadings are identical in every HS-adopting country; from the 7th digit onward, each country extends the code for its own tariff and statistics.

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What does HS Code 2621 Slag and ash n.e.c. in chapter 26; including seaweed ash (kelp) and ash and residues from the incineration of municipal waste Cover?

Section V

Chapters (25-27) Mineral products

Chapter 26

Ores, slag and ash

HS Code 2621

Slag and ash n.e.c. in chapter 26; including seaweed ash (kelp) and ash and residues from the incineration of municipal waste

HS Code 262110

Slag and ash; ash and residues from the incineration of municipal waste

HS Code 262190

Slag and ash n.e.c. in chapter 26; including seaweed ash (kelp) but excluding ash and residues from the incineration of municipal waste

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What HS Codes for Ores and Slag Do Not Cover

Chapter 26 covers metalliferous ores, slag, and ash. Goods frequently misclassified here but that belong elsewhere include:

Metals in unrefined or refined form

Chapters 72–81

Slag wool, rock wool, and similar mineral wools

Chapter 68

Radioactive isotopes

heading 2844

Salt, sulphur, and non-metallic minerals

Chapter 25

This list highlights common classification errors only — it is not exhaustive. For binding classification, work with a licensed customs broker or qualified trade compliance professional.

Related HS Codes under Other Slag and Ash HS 2621

HS Code 262110

Slag and ash; ash and residues from the incineration of municipal waste

HS Code 262190

Slag and ash n.e.c. in chapter 26; including seaweed ash (kelp) but excluding ash and residues from the incineration of municipal waste

HS Code 2601

Iron ores and concentrates; including roasted iron pyrites

HS Code 2602

Manganese ores and concentrates, including ferruginous manganese ores and concentrates with a manganese content of 20% or more, calculated on the dry weight

HS Code 2603

Copper ores and concentrates

HS Code 2604

Nickel ores and concentrates

HS Code 2605

Cobalt ores and concentrates

HS Code 2606

Aluminium ores and concentrates

HS Code 2607

Lead ores and concentrates

HS Code 2608

Zinc ores and concentrates

Frequently Asked Questions

What is HS code 2621?

HS code 2621 covers Slag and ash n.e.c. in chapter 26; including seaweed ash (kelp) and ash and residues from the incineration of municipal waste, a heading within Chapter 26 (Ores, slag and ash) of the WCO Harmonized System. Headings sit between the broad chapter level and the more specific 6-digit subheading level.

Is HS code 2621 the same in every country?

Which WCO edition does HS code 2621 belong to, and has it been reclassified?

How do I find the correct country-specific version of HS code 2621?