What is HS code 381111 used for?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
HS-6 · Subheading
Anti-knock preparations; based on lead compounds
Heading 3811 — Anti-knock preparations, oxidation and gum inhibitors, viscosity improvers, anti-corrosive preparations and the like, for mineral oils (including gasoline) or other liquids used for the same purposes
Chapter 38: Miscellaneous chemical products
Use HS-6 381111 when importing or exporting anti-knock preparations based on lead compounds, commonly used in gasoline. For instance, a shipment of leaded gasoline additives falls under this code.
This code specifically covers anti-knock agents that enhance the performance of mineral oils and fuels. In contrast, HS-6 381112 applies to similar preparations but is based on compounds other than lead.
When dealing with products like tetraethyl lead, which is used to improve engine performance by preventing knocking, this HS-6 is the correct classification. It's essential to distinguish it from other additives that may not contain lead.
If you're unsure whether your product qualifies under this code, consider its formulation and intended use. Products designed for similar purposes but without lead may require a different classification.
Useful terms traders and brokers use for this HS-6 subheading.
anti-knock preparations · lead compounds · mineral oils · gasoline additives · fuel performance · octane boosters · engine knocking · chemical formulations · automotive fuel · aviation gasoline · specialty fuel additives · combustion efficiency
Drawn from the official tariff wording for this HS-6 subheading. Always confirm against your published schedule and legal notes.
Frequent classification questions with short practical guidance.
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Write down material, use, and product form first, then compare nearby lines before you lock the code.
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Common real-world topics that come up during code comparison.
Use this topic to narrow your shortlist, then validate the final code against legal wording.
Use this topic to narrow your shortlist, then validate the final code against legal wording.
Check the exact product specs and destination-country tariff notes before finalizing the code.
Use this topic to narrow your shortlist, then validate the final code against legal wording.
Use this topic to narrow your shortlist, then validate the final code against legal wording.
Use this as a checklist topic, then confirm legal requirements with your broker or customs advisor.
Compare adjacent HS lines and pick the one that matches material, function, and product form most closely.
Check the exact product specs and destination-country tariff notes before finalizing the code.
For orientation only—the binding text is your national tariff and the WCO nomenclature your country uses.
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