Thorium Tetrafluoride Crystals from Mexico
ThF4 single crystals grown by Czochralski method for optical research. As <2.5g cultured crystals of radioactive compounds, HTS 2844.30.50 applies per Chapter note exclusions. Used in fluoride glass studies.
Duty Rate — Mexico → United States
5%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Specify crystal weight per note 2(e); use laser marking for identification; provide growth method documentation