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SITCSection 5
U.S. imports of mixed alkylbenzenes & mixed alkylnaphthalenes (not elsewhere specified) (SITC 59840) totaled $9.8M in April 2026, traded with 7 countries.
Importers of Mixed Alkylbenzenes & Mixed Alkylnaphthalenes (Not Elsewhere Specified) paid $37K in duties in April 2026 — an effective duty rate of 11% on $325K in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataProduced by alkylating benzene or naphthalene with olefins, these mixtures serve as base fluids for industrial lubricants, heat-transfer oils, and electrical insulating fluids, as well as intermediates in detergent and surfactant manufacture. The heading explicitly excludes alkylbenzenes and alkylnaphthalenes already classified under specific chemical subgroups, so importers must verify that the product's composition does not fall within those excluded categories before applying this code. Linear alkylbenzene (LAB), a key detergent intermediate, is among the most commercially significant products in this space, though its classification depends on whether it meets the specific subgroup exclusions.
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The heading explicitly carves out materials already covered by SITC subgroups 335.2 and 511.2. Importers should obtain a detailed GC analysis or composition report from the supplier and cross-reference the product's carbon-chain distribution and degree of branching against the definitions of those excluded subgroups. When the boundary is unclear, a binding classification ruling is advisable.
Mixed alkylnaphthalenes are used primarily as base stocks for high-temperature lubricants, transformer and cable insulating oils, and process fluids in plastics manufacturing. Their thermal stability and low volatility at elevated temperatures make them preferred over mineral oils in demanding industrial applications.
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Monthly import values over time