Tennessee Brown Rock Phosphate from Canada
Unground brown rock phosphate from Tennessee deposits, rich in natural apatite for organic farming applications. Classified in HTS 2510.10.00.00 as unground natural calcium phosphates, ideal for direct soil application.
Duty Rate — Canada → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Certify low magnesium content to stay under 2510; higher levels route to 2511
• For organic certification, provide mining origin docs showing no chemical treatment
• Avoid fine screening that could classify as partially ground under customs scrutiny