HS Code for Zinc ash

Zinc ash is classified under HS code 262019, which specifically covers slag, ash, and residues (other than from the manufacture of iron or steel) containing mainly zinc, excluding hard zinc spelter. This classification is governed by the General Rules of Interpretation (GRI) and the specific notes of Chapter 26, which pertains to ores, slag, and ash. Unlike primary zinc ores, zinc ash is a secondary material or industrial by-product. It typically results from the oxidation of molten zinc during processes such as galvanizing or the melting of zinc scrap. The material consists of a mixture of metallic zinc, zinc oxide, and various impurities such as chlorides or silicates. To be classified under 262019, the residue must be of a kind used in industry either for the extraction of metal or as a basis for the manufacture of chemical compounds of metals. It is distinct from 'unwrought' metal because it has not been refined into a metallic form suitable for fabrication, but rather remains a residue of a metallurgical process.

Products Included

• Zinc dross from galvanizing baths
• Zinc skimmings and residues
• Zinc-bearing flue dust
• Zinc-rich sludge from industrial wastewater treatment
• Oxidized zinc residues from smelting operations

Common Misclassification

Zinc ash is frequently misclassified under HS code 262011, which is reserved specifically for hard zinc spelter. Hard zinc spelter is a specific type of residue that forms at the bottom of galvanizing baths and has a higher metallic content and density than standard zinc ash. Another common error is using HS code 790200, which covers zinc waste and scrap. The distinction lies in the physical form: 790200 is for metallic scrap (like old zinc gutters or clippings), whereas 262019 is for residues like ash and slag that require further chemical or metallurgical processing to recover the metal.

FAQ

What is the HS code for zinc ash?

The HS code for zinc ash is 262019, which falls under the category of slag, ash, and residues containing mainly zinc.

Is zinc ash considered a hazardous material for shipping?

Yes, zinc ash is often classified as a hazardous material (Class 4.3 or Class 9 depending on composition) because it can emit flammable gases when in contact with water or contain toxic impurities, requiring specific documentation alongside the HS code.