Pandermite Calcium Borate Lump
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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If refractory-fired for ceramics
Fired or agglomerated borates become refractory materials under Chapter 69.
If converted to sodium borates
Material composition change to sodium variants shifts to polyborates in Chapter 28.
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Import Tips & Compliance
• 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
Related Products under HTS 2528.00.00.10
Colemanite Ore
Colemanite is a naturally occurring white to colorless calcium borate mineral (Ca2B6O11·5H2O) mined primarily from evaporite deposits in California and Turkey. It falls under HTS 2528.00.0010 as a natural calcium borate, unprocessed except for basic concentration, used as a source of boron in various industries. This statistical suffix specifically covers calcium borate variants like colemanite without chemical separation from brine.
Ulexite Calcium Borate
Ulexite, known as TV rock, is a hydrated sodium calcium borate mineral (NaCaB5O6(OH)6·5H2O) that appears fibrous and translucent, sourced from boron-rich lake beds. Classified under HTS 2528.00.0010 for its natural calcium borate composition, it is exported as crude ore for boron extraction. The code applies to concentrates not chemically altered from natural deposits.
Priceite Natural Borate
Priceite is a rare calcium borate hydroxide mineral (Ca4MgB10O19(OH)10·6H2O) found in boron deposits, appearing as yellow-brown crystals. It qualifies for HTS 2528.00.0010 as a natural calcium borate concentrate from mining operations, not including brine-extracted forms. Primarily used in research and specialty boron applications.
Hydroboracite Crude Concentrate
Hydroboracite (CaMgB6O11·6H2O) is a white fibrous calcium magnesium borate mineral extracted from evaporite basins and concentrated via flotation. It is classified in HTS 2528.00.0010 as natural calcium borates, provided no brine separation occurs. Common in fertilizers and glass flux production.