Instantaneous Safety Fuse from Mexico
High-speed safety fuse variant burning at over 100 m/s for rapid sequential blasting in tunnel construction. Made with reinforced gunpowder core and polymer coating for moisture resistance. HTS 3603.10.00.00 covers this as a specialized safety fuse for industrial detonations.
Duty Rate — Mexico → United States
13%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Specify burn velocity in commercial invoice; >50 m/s risks detonating cord classification
• DOT hazmat shipping papers must list as 1.4B explosive
• Storage facility must meet ATF magazine requirements pre-import