Sodium thiosulphate (hypo)

Sodium thiosulphate, inorganic thiosulphate salt

CBIC CLEARANCE

HSN 2832 30 10 (Sodium thiosulphate) is subject to customs-level document verification administered by the Central Board of Indirect Taxes and Customs (CBIC), with mandatory Chapter 28 additional qualifiers in import declarations effective 15 October 2023. Where the consignment is classified as a drug, five further e-Sanchit documents — including a registration certificate and import licence for drugs — must be uploaded before out-of-charge.

What this is

HSN code

2832 30 10

Chapter

28 · Inorganic chemicals; organic or inorganic compounds of precious metals

Primary regulator

CBIC · CBIC Circular 23/2023-Cus dated 30-09-2023; Chapter 28 mandatory qualifiers regime

Customs documentation

Certificate of analysis from issuing laboratory
Registration certificate from drugs authority
Import licence for drugs from CBIC

Compliance steps

1
Include the mandatory additional qualifiers for Chapter 28 commodities in all import declarations filed on or after 15 October 2023. The qualifiers must conform to the specifications in paragraphs 4.1 and 4.2 of CBIC Circular 23/2023-Cus; non-compliant declarations are liable to examination and detention at customs.
CBIC Circular 23/2023-Cus dated 30-09-2023, paras 4.1 and 4.2
2
Where the consignment is presented as a drug, upload all five mandatory documents in e-Sanchit before filing the bill of entry: certificate of analysis (0010dc), batch release certificate (0030dc), label of consignment (0110dc), registration certificate for drugs (101dc1), and import licence for drugs (9111dc). Out-of-charge will not be granted until each document code is verified in e-Sanchit.
CBIC e-Sanchit document codes 0010dc, 0030dc, 0110dc, 101dc1, 9111dc

A word of counsel

The most common error on this tariff line is treating sodium thiosulphate purely as an industrial inorganic chemical and overlooking the drug-classification overlay that activates the five-document e-Sanchit requirement. If the consignment carries any pharmaceutical-grade or drug-application designation on the commercial invoice, label, or certificate of analysis, customs will route it through the drug-document checklist regardless of the buyer's intended end-use, and a missing registration certificate (101dc1) or import licence (9111dc) will halt out-of-charge until the deficiency is rectified.

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Frequently asked

Does HSN 2832 30 10 require BIS certification?

No, sodium thiosulphate is not covered by any BIS Quality Control Order. Import is governed by the Central Board of Indirect Taxes and Customs under CBIC Circular 23/2023-Cus, with mandatory Chapter 28 additional qualifiers in import declarations, and a drug-document overlay where the product is classified as a drug.

Which document codes must be uploaded in e-Sanchit when the consignment is classified as a drug?

Five document codes are mandatory: certificate of analysis (0010dc), batch release certificate (0030dc), label of consignment (0110dc), registration certificate for drugs (101dc1), and import licence for drugs (9111dc) — all must be present in e-Sanchit before out-of-charge is granted.

From what date do the Chapter 28 mandatory qualifiers apply, and what happens if they are omitted?

The mandatory additional qualifiers under paragraphs 4.1 and 4.2 of CBIC Circular 23/2023-Cus apply to all import declarations filed on or after 15 October 2023; omission renders the declaration non-compliant and exposes the consignment to examination and detention at customs.

Last verified against gazette notifications: 2026-05-16. Source: CBIC / Indian Customs CUSDATA.