Celestite Flotation Concentrate from Mexico
Wet-processed celestite concentrate from froth flotation (97% SrSO4), dried but uncalcined. Still classified as crude celestite under HTS 2530.90.8010 since beneficiation doesn't constitute chemical change. Feedstock for strontium carbonate production.
Duty Rate — Mexico → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Document flotation process doesn't alter mineral structure (XRD proof); declare moisture content accurately; distinguish from chemically precipitated SrSO4