Product classification
HS code for Bituminous mastic: 2715.00
Bituminous mixtures based on natural asphalt, on natural bitumen, on petroleum bitumen, on mineral tar or on mineral tar pitch (e.g. bituminous mastics, cut-backs).
Classification of bituminous mastic under HS 2715.00
Bituminous mastic is classified under HS code 2715.00. This heading covers bituminous mixtures based on natural asphalt, natural bitumen, petroleum bitumen, mineral tar, or mineral tar pitch. These products are generally used for waterproofing, caulking, or as adhesives in construction and road works. The classification is based on the composition of the mixture, where the bituminous substance acts as the primary binder. Unlike pure bitumen (which falls under 2713), bituminous mastics are prepared mixtures containing mineral fillers or other substances to modify their physical properties for specific applications like joint sealing or roofing. The Explanatory Notes for heading 2715 state that it includes products such as cut-backs (bitumen dissolved in volatile solvents) and emulsions. Bituminous mastic specifically refers to mixtures of bitumen with finely divided mineral matter (like sand or asbestos) and sometimes fibers. The classification remains in Chapter 27 because the product is a mineral-based fuel or bituminous substance, even though it has been processed into a construction material. This code is vital for the construction industry to ensure that bulk sealing materials are correctly identified for environmental and safety regulations, as well as for the application of appropriate trade tariffs.
- Covers
- Bituminous mastics for roofing
- Asphalt-based caulking compounds
- Bituminous cut-backs
- Mineral-filled bitumen for joint sealing
- Bituminous emulsions for road surfacing
- Also under 2715.00
- Sika Bituminous Mastics
- BASF Bituminous Coatings
- Colas Emulsions
- W. R. Meadows Asphaltic Sealants
Codes often confused with 2715.00
Common mistake. Bituminous mastic is frequently misclassified under HS code 3214, which covers glaziers' putty, grafting putty, and resin cements. While both are used for sealing, 3214 is for products based on resins or other non-bituminous binders. If the product is primarily based on bitumen or asphalt, 2715.00 is the correct code. Another common error is using 2713.20 for petroleum bitumen; however, 2713 is for the raw material, while 2715 is for the prepared mixture.
Top exporters and importers of HS 271500 (the code used for bituminous mastic), 2025
In 2025, the largest exporter of HS 271500 (the code used for bituminous mastic) in UN Comtrade data was the United States, with 12% of world exports; the largest importer in UN Comtrade data was China, with 68% of world imports. The Netherlands reports $17.6B of its chapter 27 imports without product detail (confidential), so it may also belong among the top importers.
Figures cover everything classified under HS 271500, not only bituminous mastic.
Top exporters 2025 · share of world exports
- 1 United States $98M 12% of world exports
- 2 Canada $97M 12% of world exports
- 3 Germany $92M 12% of world exports
World total: $794M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 China $2.4B 68% of world imports
- 2 United States $126M 3.5% of world imports
- 3 Malaysia $72M 2.0% of world imports
The Netherlands reports $17.6B of its chapter 27 imports without product detail (confidential), so it may also belong among the top importers.
World total: $3.6B 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 bituminous mastic
Brazil classifies bituminous mastic under NCM 2715.00.00: HS 2715.00 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about bituminous mastic
What is the HS code for Bituminous mastic?
The HS code for Bituminous mastic is 271500 (Bituminous mixtures based on natural asphalt, on natural bitumen, on petroleum bitumen, on mineral tar or on mineral tar pitch (e.g. bituminous mastics, cut-backs)). The HS code for bituminous mastic and similar bituminous mixtures is 2715.00.
How do I classify Bituminous mastic for customs?
Bituminous mastic is classified under HS code 271500 — Bituminous mixtures based on natural asphalt, on natural bitumen, on petroleum bitumen, on mineral tar or on mineral tar pitch (e.g. bituminous mastics, cut-backs). This is a 6-digit subheading level code.
Can this code be used for asphalt used in road construction?
Yes, if the asphalt is a prepared mixture (like a cut-back or emulsion) rather than just raw bitumen, 2715.00 is appropriate.
Which countries are the top exporters of bituminous mastic (HS 271500)?
In 2025, the top exporters of HS 271500 (the code used for bituminous mastic) in UN Comtrade data were the United States ($98M, 12% of world exports), Canada ($97M) and Germany ($92M). World exports came to about $794M, 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 bituminous mastic (HS 271500)?
In 2025, the top importers of HS 271500 (the code used for bituminous mastic) in UN Comtrade data were China ($2.4B, 68% of world imports), the United States ($126M) and Malaysia ($72M). World imports came to about $3.6B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). The Netherlands reports $17.6B of its chapter 27 imports without product detail (confidential), so it may also belong among the top importers.
Is the HS code for Bituminous mastic the same in all countries?
The base HS code 271500 for Bituminous mastic is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for bituminous mastic in Brazil?
In Brazil, bituminous mastic (HS 271500) is classified under NCM 2715.00.00.