HS code · 6-digit subheading
HS Code 8439.99 – Machinery; parts of machinery for making or finishing paper or paperboard
HS code 8439.99 is the 6-digit subheading for machinery, parts of machinery for making or finishing paper or paperboard. It is used for dryer felts, press rolls, calender rolls, coater blades and slitter knives.
What HS 8439.99 covers
This 'basket' HS code covers parts of machinery for making or finishing paper or paperboard, excluding those specifically for pulp-making machinery (843991). This category includes a vast array of components essential for the operation, maintenance, and upgrade of paper machines (843920) and paper finishing equipment (843930). These parts range from large press rolls and dryer felts to precision coater blades, slitter knives, and sophisticated control system modules. The continuous supply of these specialized components is crucial for paper mills to ensure product quality, maximize uptime, and adapt to evolving production demands. Importers are paper and paperboard manufacturers globally, while leading exporters include countries with advanced manufacturing capabilities in the paper machinery sector, such as Germany, Finland, and the United States, which provide critical support to the global paper industry.
- Covers
- Dryer felts
- Press rolls
- Calender rolls
- Coater blades
- Slitter knives
- Headbox components
- Winding shafts
- Control system modules
- Doctor blades
- Examples
- Valmet paper machine parts
- Voith finishing line components
- Jagenberg slitter parts
- Toscotec dryer fabrics
Codes often confused with 8439.99
Common mistake. Often confused with 843991 (parts for pulp making machinery) if the specific function of the part within the paper production chain is not precisely identified. This code covers parts for the actual paper sheet formation and subsequent finishing.
Top exporters and importers of HS code 843999, 2025
In 2025, the largest exporter of HS code 843999 in UN Comtrade data was Germany, with 31% of world exports; the largest importer in UN Comtrade data was the United States, with 14% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Top exporters 2025 · share of world exports
- 1 Germany $694M 31% of world exports
- 2 China $373M 17% of world exports
- 3 Finland $212M 9.4% of world exports
World total: $2.3B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $276M 14% of world imports
- 2 Germany $174M 8.5% of world imports
- 3 China $146M 7.2% of world imports
World total: $2.0B Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM codes for 8439.99 2
Brazil splits HS 8439.99 into 2 NCM codes, Mercosur's 8-digit tariff lines.
- 8439.99.10 Corrugator rolls, 2,500 mm wide or moreRolos, corrugadores ou de pressão, de máquinas para ondular, com largura útil igual ou superior a 2.500 mm
- 8439.99.90 Other parts of paper making or finishing machineryOutras
All Brazil NCM codes in heading 84.39 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 8439.99
What is HS code 843999?
HS code 843999 is a 6-digit subheading in the Harmonized System that covers: Machinery; parts of machinery for making or finishing paper or paperboard. This 'basket' HS code covers parts of machinery for making or finishing paper or paperboard, excluding those specifically for pulp-making machinery (843991). This category includes a vast array of components essential for the operation, maintenance, and upgrade of paper machines (843920) and paper finishing equipment (843930). These parts range from large press rolls and dryer felts to precision coater blades, slitter knives, and sophisticated control system modules. The continuous supply of these specialized components is crucial for paper mills to ensure product quality, maximize uptime, and adapt to evolving production demands. Importers are paper and paperboard manufacturers globally, while leading exporters include countries with advanced manufacturing capabilities in the paper machinery sector, such as Germany, Finland, and the United States, which provide critical support to the global paper industry.
What products fall under HS code 843999?
Dryer felts, press rolls, calender rolls, coater blades, slitter knives, headbox components, winding shafts, control system modules, doctor blades
What are common misclassifications for HS code 843999?
Often confused with 843991 (parts for pulp making machinery) if the specific function of the part within the paper production chain is not precisely identified. This code covers parts for the actual paper sheet formation and subsequent finishing.
Which countries are the top exporters of goods under HS code 843999?
In 2025, the top exporters of HS code 843999 in UN Comtrade data were Germany ($694M, 31% of world exports), China ($373M) and Finland ($212M). World exports came to about $2.3B, 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.
Which countries are the top importers of goods under HS code 843999?
In 2025, the top importers of HS code 843999 in UN Comtrade data were the United States ($276M, 14% of world imports), Germany ($174M) and China ($146M). World imports came to about $2.0B, 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.
How is HS code 843999 structured?
HS code 843999 is a 6-digit subheading under the Harmonized System. The first 2 digits (84) identify the chapter, digits 3-4 (39) identify the heading, and digits 5-6 (99) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 843999?
Brazil splits HS code 843999 into 2 NCM codes: 8439.99.10 (Corrugator rolls, 2,500 mm wide or more), 8439.99.90 (Other parts of paper making or finishing machinery). The first 6 digits of each match the HS code.