3815.90.20.00/Mercuric Sulfate Catalyst/Canada

Mercuric Sulfate Catalyst from Canada

HgSO4 preparation employed as a catalyst in acetylene hydration to acetone production. Classified in HTS 3815.90.2000 as a wholly inorganic mercury reaction initiator.

Duty Rate — Canada → United States

12.8%

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
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Import Tips

• Strict mercury import quotas apply; obtain Commerce Department authorization prior to shipment

• Use secondary containment packaging per UN standards for soluble mercury salts

• Misclassification risk as battery component (8507) if not clearly catalytic

Mercuric Sulfate Catalyst from Canada — Import Duty Rate | HTS 3815.90.20.00