Magnesium Tungstate from Mexico
Magnesium tungstate (MgWO4) is a crystalline salt employed in scintillation detectors and phosphors, classified as other tungstates in HTS 2841.80.0050. It is a simple oxometallic salt excluded from other chapters.
Duty Rate — Mexico → United States
5.5%
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
• Provide crystallographic data if challenged on 'chemically defined' status
• Separate from magnesium oxide mixtures (excluded to Section V)
• Document non-fire-extinguisher use to stay out of 3813