Calcium Cyanide 70% Technical Solution Precursor from China
70% calcium cyanide technical grade is a concentrated form used as a precursor for on-site solution making in remote mining sites. It is squarely under HTS 2837.19.01.15 for calcium cyanide, as a chemically defined compound per subheading note, not a preparation. Purity ensures classification remains in Chapter 28.
Duty Rate — China → United States
20%
Rate breakdown
9903.88.157.5%Except as provided in headings 9903.88.39, 9903.88.42, 9903.88.44, 9903.88.47, 9903.88.49, 9903.88.51, 9903.88.53, 9903.88.55, 9903.88.57, 9903.88.65, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(r) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(s)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Use refrigerated transport if hygroscopic; declare cyanide content precisely for CBP
• Avoid repackaging that creates 'retail' preparations