Detergent manufacturers (as a water-softening builder) and food processors (frozen seafood/meat moisture retention) are the two dominant, quite different buyer segments for STPP.
HSN code 28353100 is classified as Free under India's DGFT ITC(HS) export policy — no export license is required.
This product may be freely exported/imported from India without a license.
HSN Code Details
HSN 28353100 covers sodium triphosphate (sodium tripolyphosphate, STPP), a major detergent builder and food processing additive (meat/seafood water retention).
Food-grade STPP requires FCC certification and is subject to maximum residual-level regulations in many countries (phosphate content restrictions on seafood), while detergent-grade faces environmental phosphate-discharge restrictions in some markets banning STPP in consumer detergents.
Related HSN Codes (Heading 2835)
Frequently Asked Questions
No. HSN 28353100 is classified as Free under DGFT ITC(HS) policy, so it can be exported from India without an export license or permit.
STPP (28353100) faces two separate regulatory pressures: food-grade needs FCC certification with residual-level limits on seafood, and detergent-grade is banned in some markets over phosphate water-pollution concerns.
HSN 28353100 falls under Chapter 28 and Heading 2835 of India's customs tariff schedule.
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