Potassium Nitrate Crystals from Mexico
Pure potassium nitrate (KNO3) in crystalline form, a chemically defined inorganic salt used primarily as a fertilizer and in pyrotechnics. It falls under HTS 2834.21.00.00 as a nitrate of potassium, distinct from ammonium or other metal nitrates.
Duty Rate — Mexico → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Verify purity certificate to confirm 'chemically defined' status per Chapter 28 notes; obtain end-use declarations for fertilizer vs explosive uses to avoid scrutiny; ensure packaging prevents moisture absorption during transit