HS Code for Lead anti-knock additive

Lead anti-knock additives are classified under HS code 381111. These are chemical preparations added to gasoline (petrol) to increase its octane rating and prevent engine knocking or pre-ignition. The classification is determined by the active chemical component; heading 3811 covers anti-knock preparations, oxidation inhibitors, and other prepared additives for mineral oils. Subheading 381111 is specific to those based on lead compounds, most notably tetraethyl lead (TEL) or tetramethyl lead (TML). Despite the global phase-out of leaded gasoline in many jurisdictions, this code remains the international standard for classifying these specific lead-based chemical mixtures.

Products Included

• Tetraethyl lead (TEL) anti-knock compounds
• Tetramethyl lead (TML) preparations
• Lead-based octane boosters
• Ethyl fluid (anti-knock mixture)

Common Misclassification

These additives are frequently confused with HS code 381119, which covers anti-knock preparations that are not based on lead compounds (such as those based on manganese or methylcyclopentadienyl manganese tricarbonyl). They may also be misclassified under 381190, which is a general category for other fuel additives like detergents or dispersants. It is critical to identify the presence of lead to ensure the 381111 code is used correctly, as leaded compounds are often subject to stricter environmental regulations and import controls.

FAQ

What is the HS code for lead-based anti-knock preparations?

The specific HS code for anti-knock preparations based on lead compounds is 381111.

Is tetraethyl lead classified here?

Yes, tetraethyl lead, when prepared as an anti-knock additive for fuel, is classified under HS code 381111.