HSN · Goods classification
HSN Code 280920 - Phosphoric acid and polyphosphoric acids :
Subheading (6-digit)PHOSPHORIC ACID AND POLYPHOSPHORIC ACIDS :
Classification path
Follow the code from its broad category to this entry.
- Code
- 280920
- Classification level
- Subheading (6-digit)
- Parent entry
- 2809 DIPHOSPHORUS PENTAOXIDE; PHOSPHORIC ACID; POLYPHOSPHORIC ACIDS, WHETHER OR NOT CHEMICALLY DEFINED
Related codes under 280920
Open a related code for its description and classification path.
Understand the hierarchy
Read the HSN code guide How HSN code levels fit together
Learn how a chapter, heading and subheading lead to a more specific tariff item.
Source and verification
Check official record ↗This directory uses a user-provided workbook. Its publisher, data effective date and permission to republish have not been independently verified. The workbook does not include GST rates or trade-name suggestions. Confirm the current code and applicable rules with the official GST Portal.
Catalog note: Workbook file modified 2026-04-24; data effective date not provided.