Microtunnel Boring Rig from Mexico
A microtunnel boring rig is a small-diameter rock tunnelling machine used for utilities in mineral-bearing areas. It is classified under 8430.39.00 as other tunnelling machinery, as it is not a full-size tunnel boring machine or a roadheader.
Duty Rate — Mexico → Canada
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Import Tips
• Classify the microtunnel boring rig as a complete machine under 8430.39.00, and include all guidance systems if integral
• Provide specifications showing it is for rock tunnelling
• Verify if the rig is self-propelled, which may affect classification