Thermomechanical Pulp (TMP) from Spruce from Canada
TMP is generated by steaming wood chips at high temperature followed by mechanical defibration in refiners, preserving most lignin for strength and yield. Ideal for magazine paper and board due to its high bulk and print quality. Falls under HTS 4701.00.00.00 as a true mechanical woodpulp without significant chemical dissolution.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Provide process flow documentation showing steam pretreatment and refiner mechanical action to distinguish from chemical methods
• Test for brightness and freeness values typical of TMP (e.g
• CSF 100-400 ml) to support classification
• Package in moisture-proof bales; declare exact yield percentage to prevent disputes over semi-chemical blends