HSN Code 7903 is dedicated to 'Zinc dust, powders and flakes' within India's Customs Tariff Act. This heading is crucial for businesses dealing with zinc in its finely divided states, distinct from bulk zinc forms. Procurement teams, accountants, and Customs House Agents (CHAs) use this code to accurately classify transactions for import, export, and Goods and Services Tax (GST) purposes. Understanding HSN 7903 ensures correct duty calculation and compliance. MetaleMart’s extensive catalog, while focusing on bulk metals and standard shapes, may facilitate sourcing some specialized zinc forms or raw materials used in producing these fine zinc products, connecting buyers with a wide network of industrial material suppliers across India.
What HSN 7903 Covers
HSN Code 7903 specifically encompasses zinc in its particulate forms: dust, powders, and flakes. This includes zinc that has been ground, atomized, or otherwise processed to create fine particles. These materials are distinct from solid, unwrought zinc (covered under HSN 7901) or wrought forms like plates and sheets (HSN 7905). Zinc dust is primarily used in applications requiring a high concentration of metallic zinc, such as in zinc-rich primers and paints for anti-corrosion, thermal spray coatings (metallizing), and as a reducing agent in chemical syntheses. Zinc powders find use in battery production and specialized alloys. Zinc flakes may be used in specific non-electrolytic coating processes.
Exclusions from HSN 7903:
- Zinc ores and concentrates (Chapter 26).
- Zinc compounds like zinc oxide, zinc chloride, zinc sulphate (typically Chapter 28 or 38).
- Wrought zinc articles not in powder/dust/flake form.
- Zinc alloys in bulk or wrought forms.
Procurement professionals must ensure the material's physical form is accurately declared. For instance, zinc powder intended for powder metallurgy might fall under 7903, whereas zinc plating chemicals would not.
Common Materials & Grades under HSN 7903
- Zinc Dust (Micronized): Finely processed zinc particles, often used in anti-corrosion paints and coatings. MetaleMart focuses on bulk metals, but this is the core classification.
- Zinc Powder (Atomized): Produced by atomizing molten zinc, resulting in spherical or near-spherical particles for specific applications like thermal spraying.
- Zinc Flakes: Small, flat particles of zinc, sometimes used in specialized coatings or chemical processes.
- High Purity Zinc Dust: Zinc dust with a very high zinc content (e.g., 98%+), required for sensitive applications like battery manufacturing.
- Coarse Zinc Powder: Larger particle size zinc powder compared to micronized versions, used where finer dispersion isn't critical.
Trade Names & Synonyms for HSN 7903 in India
- Zinc Powder
- Zinc Dust
- Micronized Zinc
- Atomized Zinc
- Zinc Flakes
- Metallic Zinc Powder
- Zinc Grey
- Zinc Dust for Galvanizing
Typical Industrial Uses of Zinc Dust, Powders & Flakes (HSN 7903)
- Anti-corrosion coatings (Zinc-rich paints, primers)
- Thermal spray coatings (Metallizing)
- Chemical manufacturing (Reducing agent)
- Battery production
- Specialized alloy manufacturing
- Rubber compounding
- Printed circuit board (PCB) manufacturing
GST Rate (Indicative)
Products classified under HSN 7903, covering Zinc Dust, Powders, and Flakes, typically fall under the 18% GST slab in India. However, this can vary based on the specific form and application. Always verify the applicable GST rate on the official CBIC portal before finalizing your transactions.
Related HSN Codes
- HSN 7901: Zinc and Zinc Alloys, Unwrought — Covers basic zinc metal forms like ingots.
- HSN 7904: Zinc and Zinc Alloys, Wrought and Unwrought — Broader category for zinc alloys.
- HSN 7905: Plates, Sheets, Strip and Foil of Zinc.
- HSN 7907: Other Articles of Zinc.
- HSN 7204: Ferro-alloys and Ferrous Waste and Scrap (for context on metal powders in other chapters).
- HSN 3206: Other pigments, preparations based on zinc compounds (relevant for zinc oxide/sulphide pigments, distinct from elemental zinc forms here).
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Frequently Asked Questions about HSN 7903
What are the typical packaging and MOQs for Zinc Dust, Powders, and Flakes in India?
Yes, suppliers typically offer Zinc Dust, Powders, and Flakes in various particle sizes such as micronized, fine, coarse, and sometimes custom grinds. Packaging is usually in steel drums or heavy-duty bags, with Minimum Order Quantities (MOQs) varying significantly based on grade and quantity, often starting from 25 kg bags up to pallet quantities. Always confirm MOQs and particle size specifications with your supplier on MetaleMart.
How does HSN 7903 differentiate from other zinc-related HSN codes?
HSN 7903 specifically covers zinc in the form of dust, powders, and flakes. While zinc in other forms like ingots (HSN 7901), unwrought zinc alloys (HSN 7904), or plates, sheets, and strip of zinc (HSN 7905) fall under different HSN codes, zinc dust/powders/flakes are exclusively classified here. Ensure your documentation correctly identifies the physical form to avoid customs issues.
What are the main industrial uses for products classified under HSN 7903?
The primary applications for zinc dust/powders/flakes under HSN 7903 include anti-corrosion coatings (like galvanizing paints and primers), metallizing, chemical manufacturing (e.g., as a reducing agent), and in the production of specialized batteries and other alloys. Verify the exact application and required purity/particle size with your technical team.
What are the key compliance and documentation considerations for HSN 7903?
When importing or procuring Zinc Dust, Powders, and Flakes under HSN 7903, ensure compliance with Indian import regulations. This includes correct declaration of the product, particle size, purity, and intended use. Seek guidance from your Customs House Agent (CHA) for specific documentation, such as Certificates of Analysis (COA), and to verify any import restrictions or specific duties applicable beyond the standard GST.