Thallium Reference Standard Foil from Mexico
Ultra-pure thallium foil sheets used as calibration standards in analytical chemistry labs. HTS 8112.59.00.00 covers this as 'other' thallium article, excluding basic shapes.
Duty Rate — Mexico → United States
4%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Include calibration certificate to prove lab use and avoid commercial scrutiny
• Confirm foil thickness doesn't qualify as 'wrought sheet' under other subs