HS Code 47.01 – Wood pulp, mechanical wood pulp

HS code 4701 is a 4-digit heading in the Harmonized System that covers: Wood pulp, mechanical wood pulp. Heading 4701 specifically covers mechanical wood pulp, a fundamental raw material in the paper and board industry. This classification encompasses pulp produced primarily through mechanical means, where wood logs or chips are ground or refined to separate fibers, largely retaining the lignin content of the wood. This process results in a high yield, opaque pulp, but typically with lower strength and a tendency to yellow over time compared to chemical pulps. Key sub-categories include groundwood pulp (GW), thermomechanical pulp (TMP), and chemi-thermomechanical pulp (CTMP), each varying in their processing intensity and resulting fiber properties. The scope is limited to pulp obtained mechanically, distinguishing it from chemical pulps (4703, 4704) or semi-chemical pulps which involve significant chemical treatment. Mechanical pulp is predominantly used in the production of newsprint, tissue paper, printing and writing papers, and some types of paperboard. For trade compliance, accurate classification is crucial for determining duty rates, adhering to environmental regulations regarding pulp sourcing, and managing international supply chains. This heading forms the initial classification within Chapter 47, which broadly covers 'Pulp of wood or other cellulosic fibrous material; recovered (waste and scrap) paper or paperboard', establishing the foundational raw material for paper production.

Groundwood pulp (GW), thermomechanical pulp (TMP), chemi-thermomechanical pulp (CTMP), refiner mechanical pulp (RMP), stone groundwood pulp (SGW), pressure groundwood pulp (PGW), bleached mechanical pulp, unbleached mechanical pulp, spruce mechanical pulp, pine mechanical pulp, aspen mechanical pulp, eucalyptus mechanical pulp, mechanical pulp for newsprint, mechanical pulp for tissue paper, mechanical pulp for coated paper, mechanical pulp for paperboard, defibrated mechanical pulp, semi-chemical mechanical pulp (where mechanical is predominant), mechanical pulp in rolls, mechanical pulp in sheets, mechanical pulp for printing and writing paper, mechanical pulp for packaging paper, mechanical pulp for specialty papers.

A common misclassification involves confusing mechanical wood pulp (4701) with chemical wood pulps (4703 for chemical wood pulp, soda or sulphate; 4704 for chemical wood pulp, sulphite). The key distinction lies in the pulping process: 4701 is mechanical, retaining most lignin, while 4703/4704 use chemical agents to remove lignin. This impacts pulp properties, uses, and duty rates. Another error is classifying wood chips or logs (Chapter 44) as pulp, or vice-versa, when the material has not undergone the pulping process. Sometimes, semi-chemical pulps might be incorrectly placed here if the chemical treatment is significant enough to qualify for other headings.

In 2025, the top exporters of HS code 4701 in UN Comtrade data were New Zealand ($93M, 40% of world exports), Germany ($41M) and Norway ($29M). World exports came to about $230M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.

In 2025, the top importers of HS code 4701 in UN Comtrade data were Germany ($25M, 16% of world imports), Italy ($17M) and France ($17M). World imports came to about $158M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.

HS code 4701 is a 4-digit heading under Chapter 47 of the Harmonized System. The first 2 digits (47) identify the chapter, and digits 3-4 (01) specify the heading. This code contains multiple 6-digit subheadings for precise product classification.