Strontium Sulfite Powder from Mexico
Strontium sulfite (SrSO3) powder for pyrotechnics and specialty ceramics. Under HTS 2832.20.00.00 as a rare earth-adjacent sulfite, excluded from radioactive elements in 2844.
Duty Rate — Mexico → United States
13.1%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Declare end-use; pyrotechnic applications require BATF import license
• Purity >98% needed for ceramics; impurities shift to waste classifications
• Radioactivity testing mandatory per Chapter 28 Note 6 for strontium compounds