Hydroton Expanded Clay Balls from Mexico
Hydroton brand expanded clay balls are spherical lightweight aggregates for hydroponic growing systems. Classified in HTS 6806.20.00.00 as expanded clays used in inert media applications. Reusable and pH neutral for plant root support.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Specify ball diameter (e.g
• 8mm) and expansion specs in commercial invoices
• Ensure phytosanitary certificates if destined for agricultural use
• Package in mesh bags to demonstrate non-soil growing medium status