Other
Catalytic preparations with precious metal active substance, other
HSN 3815 12 90 (catalytic preparations with precious metal or precious metal compounds as the active substance — other than supported catalysts on platinum) 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. Other catalytic preparations within Chapter 38, particularly those not elsewhere specified or those with non-precious-metal active substances, may be classified under sibling tariff lines that attract distinct compliance obligations.
The principal importer risk at this tariff line is misclassification: precious-metal-based catalysts on a specific support medium (notably platinum on a carrier) are separately enumerated within heading 3815 and may attract different treatment on customs examination. Re-classification by customs to a more specific tariff line triggers retrospective compliance, including potential detention pending resolution. Confirm the active substance identity, support medium, and intended catalytic application against the customs tariff schedule before relying on the absence of compliance here.