Milled Phosphatic Chalk from Canada
Ground phosphatic chalk, a soft natural calcium phosphate-rich sedimentary rock, used in soil amendments and as a phosphate source. Falls under HTS 2510.20.00.00 for ground forms, explicitly including phosphatic chalk per the heading.
Duty Rate — Canada → United States
0%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Distinguish from writing chalks excluded under chapter note (k) by providing end-use affidavits; comply with soil additive regulations; batch-test for P2O5 content