U.S. exports of antiknock preparations (non-lead-based) (HS 381119) totaled $1.4M in August 2026.
Importers of Antiknock Preparations (Non-Lead-Based) paid $70K in duties in August 2026, an effective tariff rate of 18.46% of the $378K imported — duty actually collected as a share of that value, not the published tariff schedule.
Last updated: August 2026 dataNon-lead antiknock preparations — including manganese-based (MMT), ferrocene-based, and oxygenate-blended formulations — are classified under a single 10-digit line (3811190000) and serve as the commercially dominant alternatives to leaded compounds in modern fuel systems. Belgium and India are the leading US import sources, with the United Kingdom and France also supplying meaningful volumes, reflecting Europe's and India's established specialty chemical industries. Importers should be aware that certain manganese-based additives face EPA scrutiny under the Clean Air Act's fuel additive registration program, requiring registration before commercial introduction.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
6 shipments/mo
Yes. Under the Clean Air Act, fuel additives — including non-lead antiknock preparations — must be registered with the EPA before they are introduced into commerce. Importers should confirm that the specific additive formulation holds a valid EPA fuel additive registration, as unregistered additives cannot legally be blended into motor fuels for US sale.
Belgium hosts major specialty chemical manufacturing hubs with long-standing expertise in petroleum additive chemistry, while India has developed a competitive export-oriented fine chemicals sector that includes fuel additive intermediates and finished formulations. Both countries supply a range of oxygenate and organometallic antiknock chemistries that meet US fuel specifications.
HSChapter 38
ImportsExports
Imports
$378KYoY · free account
Exports
$1.4MYoY · free account
12-mo low · imports
YoY · free accountOver the twelve months to August 2026, the U.S. imported $4.4M of Antiknock Preparations (Non-Lead-Based).
Through August 2026. Source: U.S. Census Bureau.
Trade Directory
List your company under HS 381119 — Antiknock Preparations (Non-Lead-Based), so the companies trading it can find you. Be the first supplier listed.
Subheading 4 of 5 in heading 3811
Subheading 381119 · $1.4M of $311.0M
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 |
|---|---|---|---|---|---|
| 3811190000 | Antiknock Preparations, NESOI | $378K | 18.46% | 93.61% | $70K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3811190000 | Antiknock Preparations, NESOI | $1.4M |
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.
Exports · August 2026
destination
Peru and Canada together take 58% of it.
customs district
origin
entry
rate provision · imports
6.4% enters free of duty; duty collected equals 18.46% of total import value.