Tunnel Boring Machine Cutterhead from China
Rotating cutterhead assembly for tunnel boring machines used in rock tunneling for mining access. Classified under HTS 8430.39.0080 as other tunneling machinery for earth and minerals. Features disc cutters for hard rock excavation.
Duty Rate — China → United States
37.5%
Rate breakdown
9903.88.0125%Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 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(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Include engineering drawings showing cutter design for rock boring to confirm classification
• Obtain mining safety certifications like MSHA approval for U.S. import clearance
• Avoid pitfalls by declaring as parts only if not integral to complete tunneling machine