Promethium-147 Battery from Japan
Promethium-147 used in betavoltaic nuclear batteries for long-life power. An 'other' radioactive element per HTS 2844.43.0050.
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
• Classify as device only if radiation < threshold; else as radioactive material
• Comply with ITAR if for space/military applications
• Test for specific activity exceeding 74 Bq/g limit