Agglomerated Mica Insulation Sheets from China

These are plates and sheets made from agglomerated or reconstituted mica, often backed with paper support, used primarily for high-temperature electrical insulation in motors and transformers. They fall under HTS 6814.10.00.00 as they are specifically plates, sheets, or strips of agglomerated mica, whether or not on a support. The product provides dielectric strength and thermal resistance essential for industrial applications.

Duty Rate — China → United States

37.7%

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
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)

Import Tips

Verify the mica is agglomerated or reconstituted, not natural mica, to confirm classification under 6814.10.00.00; provide lab analysis if challenged

Include detailed specifications on support material (e.g

paper) and thickness in commercial invoice to avoid misclassification as articles

Ensure compliance with electrical safety standards like UL for insulation products to facilitate customs clearance