HS code · 4-digit heading
HS Code 39.25 – Plastics; builders' wares n.e.c. or included
What HS 39.25 covers
Heading 3925 is a critical classification for 'Plastics; builders' wares n.e.c. or included,' specifically addressing plastic articles predominantly used in construction and building applications that are not covered by more specific headings within Chapter 39. This heading encompasses a wide range of plastic components integral to building structures and infrastructure. Its scope includes items like plastic pipes and fittings for plumbing and drainage, conduits for electrical wiring, gutters, window and door frames, and various structural or finishing elements. The boundaries are clearly defined by exclusion: it does not cover plastic sanitary ware (3922), plastic packaging (3923), or general household articles (3924). It also excludes articles of plastics that are clearly classifiable in other chapters (e.g., electrical apparatus in Chapter 85). Key sub-categories include PVC pipes, plastic window profiles, plastic wall panels, and plastic reservoirs. This classification is vital for trade compliance due to its implications for building codes, construction standards, safety regulations (e.g., fire ratings), and specific tariffs applied to construction materials. Historically, the adoption of plastics in construction has provided lightweight, corrosion-resistant, and cost-effective alternatives to traditional materials. As a specialized part of Chapter 39, it highlights the significant role of plastics in modern infrastructure and building development.
- Covers
- Plastic pipes for plumbing
- Plastic pipe fittings
- Plastic electrical conduits
- Plastic gutters
- Plastic downspouts
- Plastic window frames
- Plastic door frames
- Plastic shutters
- Plastic blinds
- Plastic skirting boards
- Plastic wall panels
- Plastic ceiling tiles
- Plastic reservoirs
- Plastic tanks (e.g., septic tanks)
- Plastic paving grids
- Plastic formwork for concrete
- Plastic insulation boards
- Plastic gratings for drainage
- Plastic fencing components
- Plastic roof tiles
- Plastic facade cladding
- Plastic cable ducts
- Plastic access panels
- Plastic manhole covers
- Plastic expansion joints.
- Examples
A German manufacturer exports high-quality PVC window profiles and door frames to construction companies across Eastern Europe, benefiting from streamlined trade within the EU. A Chinese factory supplies large quantities of plastic drainage pipes and fittings to major infrastructure development projects in African nations, utilizing cost-effective ocean freight. An American company imports specialized plastic water storage tanks from Mexico for agricultural and residential applications, leveraging the USMCA agreement for duty-free access.
Subheadings under 39.25 4
Codes often confused with 39.25
Common mistake. Common misclassifications under 3925 arise from confusing it with other plastic articles. For instance, plastic tubes, pipes, and hoses that are not specifically 'builders' wares' (e.g., flexible garden hoses) might fall under 3917. Plastic sanitary ware like bathtubs or sinks (3922) are distinct and should not be classified here. Another error is classifying general plastic articles (3926) as builders' wares if they lack a specific construction application. It's crucial to confirm the article's specific function in building or construction and ensure it is not more specifically covered by another heading within Chapter 39 or other chapters (e.g., electrical components in Chapter 85, if they are more than just conduits).
Top exporters and importers of HS code 3925, 2025
In 2025, the largest exporter of HS code 3925 in UN Comtrade data was China, with 22% of world exports; the largest importer in UN Comtrade data was the United States, with 17% 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 $4.1B 22% of world exports
- 2 Poland $3.0B 16% of world exports
- 3 Germany $1.8B 9.5% of world exports
World total: $18.9B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $2.9B 17% of world imports
- 2 Germany $1.5B 9.2% of world imports
- 3 France $1.1B 6.5% of world imports
World total: $16.5B 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.
Questions about HS 39.25
What is HS code 3925?
HS code 3925 is a 4-digit heading in the Harmonized System that covers: Plastics; builders' wares n.e.c. or included. Heading 3925 is a critical classification for 'Plastics; builders' wares n.e.c. or included,' specifically addressing plastic articles predominantly used in construction and building applications that are not covered by more specific headings within Chapter 39. This heading encompasses a wide range of plastic components integral to building structures and infrastructure. Its scope includes items like plastic pipes and fittings for plumbing and drainage, conduits for electrical wiring, gutters, window and door frames, and various structural or finishing elements. The boundaries are clearly defined by exclusion: it does not cover plastic sanitary ware (3922), plastic packaging (3923), or general household articles (3924). It also excludes articles of plastics that are clearly classifiable in other chapters (e.g., electrical apparatus in Chapter 85). Key sub-categories include PVC pipes, plastic window profiles, plastic wall panels, and plastic reservoirs. This classification is vital for trade compliance due to its implications for building codes, construction standards, safety regulations (e.g., fire ratings), and specific tariffs applied to construction materials. Historically, the adoption of plastics in construction has provided lightweight, corrosion-resistant, and cost-effective alternatives to traditional materials. As a specialized part of Chapter 39, it highlights the significant role of plastics in modern infrastructure and building development.
What products fall under HS code 3925?
Plastic pipes for plumbing, plastic pipe fittings, plastic electrical conduits, plastic gutters, plastic downspouts, plastic window frames, plastic door frames, plastic shutters, plastic blinds, plastic skirting boards, plastic wall panels, plastic ceiling tiles, plastic reservoirs, plastic tanks (e.g., septic tanks), plastic paving grids, plastic formwork for concrete, plastic insulation boards, plastic gratings for drainage, plastic fencing components, plastic roof tiles, plastic facade cladding, plastic cable ducts, plastic access panels, plastic manhole covers, plastic expansion joints.
What are common misclassifications for HS code 3925?
Common misclassifications under 3925 arise from confusing it with other plastic articles. For instance, plastic tubes, pipes, and hoses that are not specifically 'builders' wares' (e.g., flexible garden hoses) might fall under 3917. Plastic sanitary ware like bathtubs or sinks (3922) are distinct and should not be classified here. Another error is classifying general plastic articles (3926) as builders' wares if they lack a specific construction application. It's crucial to confirm the article's specific function in building or construction and ensure it is not more specifically covered by another heading within Chapter 39 or other chapters (e.g., electrical components in Chapter 85, if they are more than just conduits).
Which countries are the top exporters of goods under HS code 3925?
In 2025, the top exporters of HS code 3925 in UN Comtrade data were China ($4.1B, 22% of world exports), Poland ($3.0B) and Germany ($1.8B). World exports came to about $18.9B, 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 3925?
In 2025, the top importers of HS code 3925 in UN Comtrade data were the United States ($2.9B, 17% of world imports), Germany ($1.5B) and France ($1.1B). World imports came to about $16.5B, 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 3925 structured?
HS code 3925 is a 4-digit heading under Chapter 39 of the Harmonized System. The first 2 digits (39) identify the chapter, and digits 3-4 (25) specify the heading. This code contains multiple 6-digit subheadings for precise product classification.