2508.40Other clays (not including expanded clays of heading 68.06), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths › Other clays

Classify a whole shipment, not one line at a time.

Adhoc's agent assigns HS codes with the ruling chain cited, checks CFIA and other agency requirements, and drafts the CBSA declaration for your broker to review.