Magnesium tungstate

Magnesium tungstate, inorganic tungstate salt

CBIC CLEARANCE

HSN 2841 80 20 (Magnesium tungstate) is subject to mandatory additional qualifiers in the import declaration under the Central Board of Indirect Taxes and Customs (CBIC) Circular 23/2023-Cus dated 30-09-2023, operative from 15 October 2023. The circular requires Chapter 28 commodities to comply with the specific declaration parameters set out in paragraphs 4.1 and 4.2.

What this is

HSN code

2841 80 20

Chapter

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

Primary regulator

CBIC · Circular 23/2023-Cus, Chapter 28 mandatory declaration qualifiers

Customs documentation

Chapter 28 qualifiers from CBIC
Import declaration from CBIC

Compliance steps

1
Ensure the import declaration for magnesium tungstate includes all mandatory additional qualifiers stipulated in paragraphs 4.1 and 4.2 of CBIC Circular 23/2023-Cus. These qualifier requirements apply to all commodities under Chapter 28 with effect from 15 October 2023.
CBIC Circular 23/2023-Cus dated 30-09-2023, paragraphs 4.1 and 4.2
2
Verify the bill of entry is filed with complete and accurate qualifier data before submission to customs. Incomplete or absent qualifiers on a Chapter 28 commodity may result in consignment detention pending 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 with a generic chemical description and omitting the mandatory declaration qualifiers required under CBIC Circular 23/2023-Cus paragraphs 4.1 and 4.2. Absent qualifiers trigger a customs query or detention for amendment — a rectifiable defect, but one that accrues demurrage and ground rent while the declaration is held. Ensure the exporter's commercial invoice and packing list carry the qualifier-level specificity required before the bill of entry is filed.

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Frequently asked

Does HSN 2841 80 20 require BIS certification?

No. Magnesium tungstate is not covered by any BIS Quality Control Order. The operative requirement is compliance with the mandatory Chapter 28 declaration qualifiers under CBIC Circular 23/2023-Cus dated 30-09-2023, administered by the Central Board of Indirect Taxes and Customs.

Which specific qualifier parameters apply to Chapter 28 imports under CBIC Circular 23/2023-Cus?

The mandatory additional qualifiers for Chapter 28 commodities are set out in paragraphs 4.1 and 4.2 of CBIC Circular 23/2023-Cus; importers should review those paragraphs directly to confirm the exact data fields required in the declaration.

Does CBIC Circular 23/2023-Cus apply only to magnesium tungstate, or to other chapters as well?

The circular extends the mandatory qualifier regime across commodities under Chapters 28, 29, 32, 39 and CTH 3808; magnesium tungstate under Chapter 28 falls within this scope from 15 October 2023.

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