HS Code 27.15 – 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)

HS code 2715 is a 4-digit heading in the Harmonized System that covers: 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). Heading 2715 covers a diverse range of bituminous mixtures, where a bituminous substance (whether natural asphalt, natural bitumen, petroleum bitumen, mineral tar, or mineral tar pitch) forms the primary binding agent. This classification encompasses manufactured products ready for specific applications, such as road paving, waterproofing, sealing, and construction. Examples include asphalt concrete, bituminous mastics, cut-back asphalts, and emulsified asphalts. Crucially, this heading distinguishes itself from the raw bituminous materials covered in 2713 and 2714 by explicitly including other ingredients (like aggregates, solvents, or emulsifiers) that transform the raw bitumen into a functional, prepared mixture. The scope is broad, covering both hot-mix and cold-mix asphalt products, as well as various bituminous compounds for roofing and damp-proofing. This classification is essential for trade compliance, as it impacts import duties on finished construction materials versus raw inputs, and ensures adherence to national construction standards and environmental regulations, particularly concerning volatile organic compounds (VOCs). Historically, these mixtures have been the backbone of modern road networks and building construction, with global demand directly tied to economic development and infrastructure spending. As further processed derivatives of Chapter 27's mineral fuels and bituminous substances, these products represent the end-use applications of these fundamental materials.

Asphalt concrete, hot mix asphalt, cold mix asphalt, bituminous mastics, cut-back asphalt, emulsified asphalt, road surfacing preparations, roofing compounds (bituminous), damp-proofing compounds (bituminous), asphalt pavement repair mix, bituminous sealants, asphalt emulsions for road treatment, modified bitumen membranes (pre-finished rolls), asphaltic concrete mixtures, slurry seal mixtures, chip seal binders, crack fillers (bituminous), pavement marking materials (bituminous-based), driveway sealers (bituminous), bridge deck waterproofing membranes, asphalt-rubber mixtures, polymer modified asphalt, asphalt primers, asphalt joint fillers, bituminous grouts.

Common misclassifications for products under HS 2715 often involve distinguishing between raw bituminous materials and prepared mixtures. A frequent error is classifying raw petroleum bitumen (2713) or natural bitumen (2714) under 2715; this heading is exclusively for *prepared mixtures* that include additional components beyond the pure bitumen. Another point of confusion can arise with products under Chapter 68 (Articles of stone, plaster, cement, etc.) if the bituminous material acts merely as a binder for a predominant mineral aggregate. However, 2715 applies when the bituminous substance is the defining 'base' of the mixture. Lastly, some specialized mastics and sealants might be confused with products in Chapter 32 (Paints, varnishes, mastics); the key distinction for 2715 is that the mixture must be *bituminous-based*, not primarily based on other synthetic resins or polymers.

In 2025, the top exporters of HS code 2715 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.

In 2025, the top importers of HS code 2715 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.

HS code 2715 is a 4-digit heading under Chapter 27 of the Harmonized System. The first 2 digits (27) identify the chapter, and digits 3-4 (15) specify the heading. This code contains multiple 6-digit subheadings for precise product classification.