Ribbed Smoked Sheets (RSS4) from Japan
Lower-grade RSS4 smoked sheets with higher ash content (max 1.0%) and visible bark specks, used in lower-end rubber products. Classified in HTS 4001.21.00 as it meets 'smoked sheets' definition without prohibited additives.
Duty Rate — Japan → United States
0%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Test for copper/heavy metals pre-shipment; RSS4 tolerances higher but still regulated
• Document smoke-drying process to distinguish from chemically coagulated alternatives