Ribbed Smoked Rubber Sheets Grade RSS4 from China
Grade RSS4 smoked sheets are lower-quality natural rubber sheets with allowable defects like bark bits, used mainly for industrial compounding. HTS 4001.21.0050 covers these as 'other' smoked sheets in primary forms, excluding compounded mixtures.
Duty Rate — China → United States
25%
Rate breakdown
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)
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Conduct lab testing for moisture (<1.0%), nitrogen, and DRC to confirm grade and prevent undervaluation claims
• Declare exact sheet thickness (typically 2.5-3.5mm) and packing (pale crepe bales) on entry docs
• Watch for reclassification if sheets exceed simple cuts and become profile shapes