Geothermal Water Well Drilling Machine from Japan
Specialized rig for drilling deep water wells for geothermal heat pump systems, using air rotary or mud rotary methods. Falls under HTS 8430.49.8040 as other water well boring equipment despite geothermal application. Designed for closed-loop groundwater heat exchange.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Include geothermal certification or specs showing water circulation use; distinguish from oil/gas rigs; energy efficiency docs may qualify for exemptions