Pierced Silkworm Cocoons Suitable for Reeling from China

Pierced silkworm cocoons where pupae have emerged naturally, but filaments remain intact for reeling into silk. These are commonly used in artisanal silk production. HTS 5001.00.00.00 includes them as long as suitable for reeling, per chapter definitions.

Duty Rate — China → United States

35%

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

Provide lab reports confirming filament length >300 meters to prove reeling suitability

Separate from non-pierced in shipments to avoid average valuation disputes

Comply with CITES if from wild silk strains, though most Bombyx mori are cultivated