Pandermite Calcium Borate Lump from Japan
Pandermite, a variety of colemanite, is supplied as natural calcium borate lumps from Turkish deposits, with B2O3 content around 30-35%. HTS 2528.00.0010 covers this uncalcined, non-brine form for boron sourcing in detergents and enamels. It remains in raw mineral state post basic crushing.
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
• Ensure lumps meet size specs for natural form; provide dry weight H3BO3 assays under 85%
• Beware of over-calcination during transport mimicking processed goods
• Use ISPM-15 compliant pallets for wood packaging to avoid fumigation delays