Pandermite Calcium Borate Lump from United States
Pandermite calcium borate lumps are a variety of colemanite from Turkish deposits, with B2O3 content around 30-35%. They are supplied as natural, uncalcined calcium borate lumps, qualifying under tariff item 2528.00.00 as natural borates not from brine.
Duty Rate — United States → Canada
0%
Import Tips
• Verify the lumps are not calcined or mixed with other materials
• Declare the B2O3 percentage to support classification
• Ensure the product is not separated from natural brine, as that would exclude it