Natural Ulexite Borate Ore from Germany
Ulexite is a hydrated sodium calcium borate mineral mined as sodium borate ore, commonly used in fertilizers and fiberglass production. Classified in HTS 2528.00.0050 as a natural borate not from brine, with H3BO3 content below 85% dry weight. It remains in raw or concentrated form without chemical separation.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide geological assay reports proving natural origin and boric acid equivalence; watch for misclassification as boron compounds
• Declare exact moisture content for accurate dry weight calculations