HS Code for Cadmium sulphide

Cadmium sulphide is classified under HS code 2830.90, which encompasses sulphides and polysulphides, whether or not chemically defined, excluding sodium sulphides. This classification is primarily driven by the chemical nature of the substance as an inorganic compound. Within the Harmonized System, Chapter 28 is dedicated to inorganic chemicals, precious metals, and rare-earth metals. Heading 2830 specifically addresses sulphides. Cadmium sulphide (CdS) is a binary compound of sulfur and cadmium. The classification remains consistent regardless of the physical form—be it powder, crystals, or lumps—provided it remains a chemically defined compound. If the product is prepared as a pigment, however, the classification may shift to Chapter 32. The distinction is crucial: Chapter 28 covers the chemical itself, while Chapter 32 covers preparations used in the coloring industry. Furthermore, if the cadmium sulphide is in the form of a natural mineral (greenockite), it would be classified under Chapter 26 as an ore. For international trade, 2830.90 is the standard for the pure or technical grade chemical used in laboratory settings or as a precursor in industrial manufacturing. According to the General Rules of Interpretation (GRI 1), classification is determined by the terms of the headings and any relative section or chapter notes. Since cadmium sulphide is a distinct chemical compound, it fits the criteria for Chapter 28. The Explanatory Notes to heading 2830 further clarify that this heading includes sulphides of non-metals and sulphides of metals, with specific exclusions for certain minerals and precious metal sulphides. This ensures that high-purity chemicals are distinguished from raw ores or finished pigments.

Products Included

• Synthetic cadmium sulphide
• Cadmium monosulphide
• High-purity cadmium sulphide for semiconductor applications
• Technical grade cadmium sulphide powder
• Cadmium yellow (unmixed chemical)

Common Misclassification

3206.49 (Cadmium-based pigments and preparations) is the most frequent error. This occurs when the cadmium sulphide is mixed with other substances to function as a coloring agent. Another common error is 2830.10, which is reserved specifically for sodium sulphides. Additionally, natural greenockite must be classified under 2617.90 as an ore rather than a chemical.

FAQ

What is the HS code for Cadmium sulphide?

The HS code for chemically defined cadmium sulphide is 2830.90.

Is cadmium sulphide considered a hazardous material for shipping?

Yes, cadmium compounds are generally classified as hazardous substances due to their toxicity and environmental impact, requiring specific labeling and documentation under international maritime and air transport regulations.