HS code · 6-digit subheading
HS Code 3923.40 – Plastics; spools, cops, bobbins and similar supports, for the conveyance or packing of goods
HS code 3923.40 is the 6-digit subheading for plastics, spools, cops, bobbins and similar supports, for the conveyance or packing of goods. It is used for textile bobbins, wire spools, cable reels, yarn cones and film cores.
What HS 3923.40 covers
This HS code encompasses plastic spools, cops, bobbins, and similar supports primarily used for the conveyance or packing of goods in industrial settings. These items are crucial for efficient material handling, particularly in the textile, wire, cable, and film industries, where they facilitate the winding, storage, and transport of threads, wires, films, and other continuous materials. Major importers are manufacturing companies that integrate these plastic supports into their production lines, requiring them for their raw materials or intermediate products. Exporters are typically specialized plastic component manufacturers, often leveraging advanced injection molding or extrusion techniques. The trade in these goods is driven by global manufacturing activity, with a focus on durability, precision, and compatibility with automated machinery, ensuring smooth and uninterrupted production processes across various sectors.
- Covers
- Textile bobbins
- Wire spools
- Cable reels
- Yarn cones
- Film cores
- Ribbon spools
- Thread cops
- Examples
- Oerlikon Textile bobbins
- Prym sewing thread spools
- Belden cable reels
- 3M tape cores
- Coats thread cones
Codes often confused with 3923.40
Common mistake. This code can be confused with 392390 (other plastic packing articles) if the item's primary function as a 'support' for winding is not clear, or 8448 (parts of textile machinery) if mistakenly considered an integral machine part rather than a separate packing/conveyance item.
Top exporters and importers of HS code 392340, 2025
In 2025, the largest exporter of HS code 392340 in UN Comtrade data was China, with 21% of world exports; the largest importer in UN Comtrade data was Germany, with 8.2% 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 China $203M 21% of world exports
- 2 Italy $86M 8.7% of world exports
- 3 South Korea $85M 8.7% of world exports
World total: $979M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Germany $80M 8.2% of world imports
- 2 South Korea $78M 7.9% of world imports
- 3 Mexico $54M 5.4% of world imports
World total: $985M 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 code for 3923.40
Brazil does not split HS 3923.40: its NCM code is 3923.40.00.
All Brazil NCM codes in heading 39.23 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 3923.40
What is HS code 392340?
HS code 392340 is a 6-digit subheading in the Harmonized System that covers: Plastics; spools, cops, bobbins and similar supports, for the conveyance or packing of goods. This HS code encompasses plastic spools, cops, bobbins, and similar supports primarily used for the conveyance or packing of goods in industrial settings. These items are crucial for efficient material handling, particularly in the textile, wire, cable, and film industries, where they facilitate the winding, storage, and transport of threads, wires, films, and other continuous materials. Major importers are manufacturing companies that integrate these plastic supports into their production lines, requiring them for their raw materials or intermediate products. Exporters are typically specialized plastic component manufacturers, often leveraging advanced injection molding or extrusion techniques. The trade in these goods is driven by global manufacturing activity, with a focus on durability, precision, and compatibility with automated machinery, ensuring smooth and uninterrupted production processes across various sectors.
What products fall under HS code 392340?
Textile bobbins, wire spools, cable reels, yarn cones, film cores, ribbon spools, thread cops
What are common misclassifications for HS code 392340?
This code can be confused with 392390 (other plastic packing articles) if the item's primary function as a 'support' for winding is not clear, or 8448 (parts of textile machinery) if mistakenly considered an integral machine part rather than a separate packing/conveyance item.
Which countries are the top exporters of goods under HS code 392340?
In 2025, the top exporters of HS code 392340 in UN Comtrade data were China ($203M, 21% of world exports), Italy ($86M) and South Korea ($85M). World exports came to about $979M, 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 392340?
In 2025, the top importers of HS code 392340 in UN Comtrade data were Germany ($80M, 8.2% of world imports), South Korea ($78M) and Mexico ($54M). World imports came to about $985M, 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 392340 structured?
HS code 392340 is a 6-digit subheading under the Harmonized System. The first 2 digits (39) identify the chapter, digits 3-4 (23) identify the heading, and digits 5-6 (40) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 392340?
In Brazil, HS code 392340 is NCM 3923.40.00. The last two digits are 00 because Brazil does not split this HS code further.