Tunnel Boring Electric Detonator from China
Short-period delay electric detonators for tunnel boring machine-assisted blasting in infrastructure projects. Classified HTS 3603.60.00.00 as electric detonators for precise underground excavation. Reduces overbreak and vibration.
Duty Rate — China → United States
20.2%
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
• Vibration monitoring data required; FIFO inventory for shelf life; train on tunnel ventilation protocols