Expanded Clay Pebbles Hydroponics from Canada
Round, lightweight expanded clay aggregate (LECA) balls used as growing medium in hydroponic systems for thermal insulation and drainage. Classified in HTS 6806.90.00.90 as expanded clays, a sound-insulating mineral material not covered by other headings.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Specify particle size (e.g
• 8-16mm) and inertness certificates for agricultural entry
• Prevent misclassification as Chapter 25 earths by proving thermal expansion process
• Fumigation may be required if suspected of pest contamination