Volcanic Sulfur Crystals from Canada
Bright yellow crystalline sulfur formed around fumaroles in active volcanoes like those in Indonesia or Japan. HTS 2503.00.00.90 covers this natural sulfur variety excluding sublimed or colloidal processing.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Provide volcanic origin documentation; lab purity tests distinguish from synthetic crystals
• Avoid polished or sized crystals that resemble sublimed sulfur under exclusion
• Declare as loose crystals, not powdered, to stay in crude sulfur category