Calcium Phosphide from China
Calcium phosphide serves as a phosphide for generating phosphine gas in life-saving pyrotechnic signal flares and smoke generators. It is classified under HTS 2853.90.50.00 as a phosphide of other metals, chemically defined per Chapter 28 notes. This reactive compound is used in emergency signaling devices.
Duty Rate — China → United States
37.5%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 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(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Comply with DOT hazardous material regulations (UN1432); include phosphine emission test data
• For pyrotechnic use, cross-reference ATF import requirements if destined for signal flares