Tunneling Blast Igniter from Mexico
Heavy-duty igniter for tunnel boring machine (TBM) face blasting in underground construction. Engineered for high-pressure environments, under HTS 3603.50.00.00.
Duty Rate — Mexico → United States
10.2%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Specify methane-rated explosion-proof design for mine safety approval
• Coordinate with MSHA for underground facility imports
• Pressure test certificates mandatory for customs release