Natural Rubber Gaskets for Machinery from China

Custom-molded gaskets from vulcanized natural rubber used to seal joints in industrial machinery. Classified in HTS 4016.99.3550 as other articles of natural rubber, distinct from hard rubber and not fitting specific prior headings. Its vulcanized form and natural rubber composition dictate this placement per Chapter 40 notes.

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

Submit detailed material certificates proving 100% natural rubber origin to avoid reclassification to synthetic rubber categories

Include cross-sectional diagrams showing it's not a simple rod or profile under 4008

Check for Section XVI exclusions if gaskets are integral parts of electrical appliances