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SITCSection 5
U.S. imports of additives for lubricating oils (SITC 59725) totaled $63.2M in April 2026, traded with 28 countries.
Importers of Additives for Lubricating Oils paid $6.9M in duties in April 2026 — an effective duty rate of 17% on $40.8M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataLubricating oil additives — including viscosity index improvers, anti-wear agents, detergents, and antioxidants — are a high-value input for the automotive, industrial machinery, and aerospace lubrication sectors. SITC 59725 captures a chemically diverse range of compounded packages, and the precise additive chemistry (e.g., zinc dialkyldithiophosphate vs. ashless dispersants) can affect both classification and end-use performance specifications. Trade in this category is commercially significant, with formulated additive packages often sourced from specialty chemical producers and subject to proprietary blending specifications.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Additives classified under 59725 are concentrated functional chemicals intended to be blended into base oils to produce finished lubricants. A finished, ready-to-use lubricant would be classified elsewhere. The key distinction is whether the product is a compounded additive package or a fully formulated end product — a determination that often requires a technical data sheet and may benefit from a binding ruling.
Certain specialty chemical additives sourced from China may be subject to Section 301 tariffs depending on their specific HTS classification at the 10-digit level. Importers should verify the applicable HTS subheading and check current Section 301 lists, as coverage can vary by chemical type within this broad SITC category.
Monthly import values over time
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