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Concentrated sulphate lye

Concentrated sulphate lye from wood pulp manufacture

NO PGA · STANDARD CUSTOMS PROCEDURE

HSN 3804 00 20 (Concentrated sulphate lye) is not covered by a Bureau of Indian Standards Quality Control Order and carries no Partner Government Agency clearance requirement at the tariff-line level. Import follows the standard customs procedure: Importer-Exporter Code, bill of entry, commercial invoice, packing list. Other residual lye products within Chapter 38 — particularly lignin sulphonates and chemically treated variants — may be classified under distinct tariff lines that carry separate compliance obligations.

No partner government agency notification covers this tariff line.
A word of counsel

Concentrated sulphate lye is an industrial by-product of the kraft pulping process; its precise chemical composition and degree of concentration determine correct classification within heading 3804. Customs re-classification to a tariff line covering lignin sulphonates or chemically treated lyes — or to a hazardous chemical entry elsewhere in Chapter 38 — triggers retrospective compliance and detention pending resolution. Verify the product's technical specification, concentration level, and intended end-use against the customs tariff before shipment.

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Frequently asked
Does HSN 3804 00 20 require any pre-import registration?
A valid Importer-Exporter Code is required for any commercial import; no product-specific registration applies to this tariff line.
What changes if the residual lye contains lignin sulphonates or is chemically treated?
Lignin sulphonate-containing or chemically treated lyes may be classified under a distinct sub-heading within heading 3804 or elsewhere in Chapter 38, potentially attracting compliance obligations that do not apply to concentrated sulphate lye.
Last verified against gazette notifications: 2026-05-16. Source: BIS / DGFT / Indian Customs CUSDATA.
Related
ChapterChapter 38 · Miscellaneous chemical productsHSNRESIDUAL LYES FROM THE MANUFACTURE OF WOOD PULP, WHETHER OR NOT CONCENTRATED, DESUGARED OR CHEMICALLY TREATED, INCLUDING LIGNIN SULPHONATES, BUT EXCLUDING TALL OIL OF HEADING 3803HSNResidual lyes from the manufacture of wood pulp, whether or not concentrated, desugared or chemically treated, including lignin sulphonates, but excluding tall oil of heading 3803: