Non-Electric Delay Blasting Cap from Mexico
A detonating cap incorporating a pyrotechnic delay element that allows for timed detonation sequences in tunnel blasting. The cap uses a shock-sensitive primary explosive initiated by a fuse. Falls under HTS 3603.40.00.00 due to its function as a non-electric detonating cap.
Duty Rate — Mexico → United States
10.2%
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 delay timing specifications on commercial invoice; ensure compliance with DOT hazardous materials regulations for Class 1.1B explosives; maintain chain-of-custody documentation for licensed blasters only