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HomeHSNChapter 28HSN 2806 20 00

Chlorosulphuric acid

Chlorosulphuric acid, inorganic chlorosulphur compound

CBIC CLEARANCE

HSN 2806 20 00 (Chlorosulphuric acid) is subject to mandatory additional qualifiers in import declarations under Central Board of Indirect Taxes and Customs (CBIC) Circular 23/2023-Cus dated 30-09-2023, operative from 15 October 2023. All import declarations for commodities under Chapter 28 must include the stipulated qualifiers at bill-of-entry stage as prescribed in Paragraphs 4.1 and 4.2 of that Circular.

What this is
HSN code
2806 20 00
Chapter
28 · Inorganic chemicals; organic or inorganic compounds of precious metals
Primary regulator
CBIC · Circular 23/2023-Cus, mandatory qualifiers for Chapter 28 import declarations
Customs documentation
  • Chapter 28 qualifiers declaration to CBIC
  • Bill of entry with mandatory qualifiers from CBIC
Compliance steps
  1. 1
    Include all mandatory additional qualifiers in the import declaration for chlorosulphuric acid at the bill-of-entry stage, as stipulated in Paragraphs 4.1 and 4.2 of CBIC Circular 23/2023-Cus. These qualifiers are compulsory for all Chapter 28 commodities with effect from 15 October 2023.
    CBIC Circular 23/2023-Cus dated 30-09-2023, Paragraphs 4.1 and 4.2
  2. 2
    Verify that the bill of entry filed at customs accurately reflects the qualifier fields prior to submission. Non-compliance with the qualifier requirement exposes the importer to out-of-charge denial and consignment detention pending declaration rectification.
    CBIC Circular 23/2023-Cus dated 30-09-2023
A word of counsel

The most common error on this tariff line is filing the bill of entry without populating the Chapter 28 mandatory qualifier fields, treating them as optional supplementary data. CBIC Circular 23/2023-Cus makes those qualifiers a hard requirement from 15 October 2023; a declaration filed without them is liable to detention pending amendment, with demurrage and ground rent accruing until the corrected declaration is accepted.

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Frequently asked
Does HSN 2806 20 00 require BIS certification?
No, chlorosulphuric acid is not covered by any BIS Quality Control Order. The operative compliance requirement is the mandatory additional qualifier declaration under CBIC Circular 23/2023-Cus dated 30-09-2023 for all Chapter 28 import declarations.
What are the mandatory qualifiers required under CBIC Circular 23/2023-Cus for Chapter 28 commodities?
The specific qualifier fields are prescribed in Paragraphs 4.1 and 4.2 of CBIC Circular 23/2023-Cus dated 30-09-2023; importers must consult the Circular directly and ensure all stipulated fields are populated in the bill of entry before filing.
Does the mandatory qualifier requirement under Circular 23/2023-Cus apply to re-imports or only to fresh commercial imports?
The Circular prescribes the qualifier requirement for import declarations under Chapter 28 without a re-import carve-out; all bills of entry for chlorosulphuric acid should include the stipulated qualifiers irrespective of import category.
Last verified against gazette notifications: 2026-05-16. Source: CBIC / Indian Customs CUSDATA.
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