Thermomechanical Pulp (TMP)
Thermomechanical Pulp (TMP) is produced by steaming wood chips at high temperature and then mechanically defibrating them, with mild chemical additives to enhance fiber separation. This process combines both mechanical and chemical pulping methods, which is the defining characteristic of tariff item 4705.00.00. TMP is commonly used in the production of graphic papers, tissue, and packaging grades.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
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- CFIA
All Programs · Required
CANADIAN FOOD INSPECTION AGENCY: CFIA All Programs requires review / declaration data. CBSA's Single Window matching criteria match this classification number (Equal To 4705000000).
CBSA Single Window matching criteria, unknown
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the pulp is produced without any chemical additives
Pure mechanical pulp is classified under heading 47.01.
If the pulp is predominantly chemical (kraft) with only incidental mechanical treatment
Chemical wood pulp, soda or sulphate, falls under heading 47.03.
If the pulp is predominantly chemical (sulphite) with only incidental mechanical treatment
Chemical wood pulp, sulphite, falls under heading 47.04.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Classify TMP under 4705.00.00 only if the production process genuinely combines mechanical and chemical steps; otherwise, it may fall under 4701 (mechanical) or 4703/4704 (chemical)
• Keep detailed process documentation, including temperature, pressure, and chemical usage, to support your classification during CBSA audits
• Check if the pulp qualifies for duty-free entry under a free trade agreement based on its origin
Related Products under Tariff item 4705.00.00
Bleached Chemi-Thermomechanical Pulp (BCTMP)
Bleached Chemi-Thermomechanical Pulp (BCTMP) is produced by chemically treating wood chips with sodium sulfite or similar agents, followed by mechanical refining under steam pressure, and then peroxide bleaching to achieve high brightness. This combined chemical and mechanical process qualifies it as wood pulp obtained by a combination of mechanical and chemical pulping processes under tariff item 4705.00.00.
Chemi-Groundwood Pulp (CGP)
Chemi-Groundwood Pulp (CGP) involves treating wood chips with mild chemicals to soften them before mechanical grinding between stones, combining chemical and mechanical actions in the pulping process. This hybrid method places it under tariff item 4705.00.00 as wood pulp obtained by a combination of mechanical and chemical pulping processes.
Chemi-Thermomechanical Pulp (CTMP)
Chemi-Thermomechanical Pulp (CTMP) is manufactured by treating wood chips with chemicals such as sodium sulfite before mechanical refining under steam pressure, yielding high-strength, high-yield pulp. This integrated chemical and mechanical process classifies it under tariff item 4705.00.00 as wood pulp from combined pulping processes.
Eucalyptus CTMP
Eucalyptus CTMP is a chemi-thermomechanical pulp made from eucalyptus wood, combining chemical pretreatment and mechanical refining to produce fluff pulp with high absorbency. This combined pulping process places it under tariff item 4705.00.00 as wood pulp obtained by a combination of mechanical and chemical processes.
Hardwood Semi-Chemical Pulp
Hardwood Semi-Chemical Pulp is produced from hardwoods like aspen or eucalyptus using a chemi-mechanical process that combines chemical softening with mechanical defibration. This hybrid method qualifies it under tariff item 4705.00.00 as wood pulp from combined mechanical and chemical pulping, suitable for tissue and fluff applications.
High-Yield Bleached Pulp
High-Yield Bleached Pulp is a semi-chemical pulp with a yield above 90%, produced through a combination of chemical treatment and mechanical refining, followed by bleaching. This high-yield combined process classifies it under tariff item 4705.00.00 as wood pulp obtained by a combination of mechanical and chemical pulping processes.