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U.S. exports of lubricating preparations (non-petroleum, general use, nesoi) (HS 340399) totaled $95.2M in July 2026.
Importers of Lubricating Preparations (Non-Petroleum, General Use, NESOI) paid $1.8M in duties in July 2026 — an effective duty rate of 16% on $11.1M in dutiable value, based on actual customs collections rather than the published tariff schedule. Lubricating Preparations (Non-Petroleum, General Use, NESOI) imports of $16.1M in July 2026 ran 17% above the year-to-date monthly average of $13.8M.
Last updated: July 2026 dataNon-petroleum lubricating preparations not formulated for textile, leather, or furskin treatment — covering general industrial, mechanical, and specialty applications — are classified under this residual heading. Products here rely on synthetic base stocks such as polyalphaolefins, esters, or silicones rather than petroleum or bituminous mineral oils, and the single US tariff line (3403990000) reflects the heading's catch-all character. Germany is the primary import source, with Canada and Japan also supplying the US market, consistent with the global concentration of high-performance synthetic lubricant production. The NESOI designation means classification here is appropriate only after confirming the preparation does not belong in any more specific heading within Chapter 34.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
1.1K shipments/mo
Preparations under 340399 commonly use synthetic base stocks — such as polyalphaolefins (PAO), synthetic esters, polyalkylene glycols, or silicone fluids — rather than petroleum-derived oils. The defining characteristic is the complete absence of petroleum or bituminous mineral oils, which would otherwise direct the product to heading 340319.
The key question is whether the preparation contains any petroleum or bituminous mineral oils. If the answer is yes, heading 340319 applies regardless of the proportion; if no petroleum-derived oils are present, 340399 is appropriate. A binding ruling request to CBP can provide certainty for high-volume or recurring shipments where the base oil composition is ambiguous.
HSChapter 34
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Subheading 1 of 4 in heading 3403
Subheading 340399 · $16.1M of $29.1M
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 3403990000 | Lubricating Preps,not Cont Petroleum Oils,NESOI | $14.0M | 11.93% | 72.98% | $1.7M |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3403990000 | Lubricating Preps,not Cont Petroleum Oils,NESOI | $87.4M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
ImportsExports
Imports
$16.1MYoY · Pro
Exports
$95.2MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Exports · July 2026
destination
customs district
origin
entry
rate provision · imports
30.7% enters free of duty; the effective duty rate is 11.03%.