Calcined Witherite Powder from Canada
Natural barium carbonate (witherite) ore calcined to remove impurities, ground into powder for glass manufacturing and chemical feedstock. HTS 2511.10.50.00 includes calcined witherite explicitly, as 'other' barium compounds excluding barium oxide. Differs from synthetic carbonates.
Duty Rate — Canada → United States
0%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Confirm calcination without full conversion to oxide; provide carbonate content analysis; handle as potential irritant in shipping docs