Quicklime
Quicklime for industrial and construction use
HSN 2522 10 00 (Quicklime) 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 (IEC), bill of entry, commercial invoice, packing list. Calcium oxide and hydroxide of higher purity classified under Chapter 28 (Heading 2825) may attract separate compliance, and misclassification between those headings is the principal importer risk.
The absence of compliance at this tariff line does not extend to chemically pure calcium oxide, which falls under Heading 2825 of Chapter 28 and carries its own regulatory treatment. Re-classification on customs examination — based on purity grade, intended use, or product specification — triggers retrospective compliance and potential detention. Importers should verify the product's CaO content and technical specification against the customs tariff before relying on this tariff line's clean compliance profile.