HS 38.11 — Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils.

Chapter 38 Miscellaneous chemical products. · SECTION VI PRODUCTS OF THE CHEMICAL OR ALLIED INDUSTRIES · Edition 2026-04-01 (effective 1 April 2026)

Import duty rates for heading 38.11 from Japan's official tariff schedule. Which column applies? Most imports take the WTO rate (or General/Temporary where shown, if lower); GSP/LDC are preferential rates for developing countries; EPA rates (inside each row) apply when your goods qualify under that agreement's rules of origin. Rows without a percentage rate (specific, compound, seasonal or quota rates) need case-by-case review. Use the Calc button for the landed-cost estimate.

CodeDescriptionGeneralTemporaryWTOGSPLDCUnitLaw
38.11Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils.
Anti-knock preparations :
3811.11 000Based on lead compounds
EPA rates (21)

Singapore: Free · Mexico: Free · Malaysia: Free · Chile: Free · Thailand: Free · Indonesia: Free · Brunei: Free · ASEAN: Free · Philippines: Free · Switzerland: Free · Viet Nam: Free · India: Free · Peru: Free · Australia: Free · Mongolia: Free · CPTPP: Free · EU: Free · UK: Free · ASEAN/Australia/New Zealand(RCEP): Free · China / (RCEP): Free · Korea / (RCEP): Free

Free(Free)KGPD / CR
3811.19 000Other
EPA rates (21)

Singapore: Free · Mexico: Free · Malaysia: Free · Chile: Free · Thailand: Free · Indonesia: Free · Brunei: Free · ASEAN: Free · Philippines: Free · Switzerland: Free · Viet Nam: Free · India: Free · Peru: Free · Australia: Free · Mongolia: Free · CPTPP: Free · EU: Free · UK: Free · ASEAN/Australia/New Zealand(RCEP): Free · China / (RCEP): Free · Korea / (RCEP): Free

Free(Free)KGPD / CR
Additives for lubricating oils :
3811.21 000Containing petroleum oils or oils obtained from bituminous minerals
EPA rates (21)

Singapore: Free · Mexico: Free · Malaysia: Free · Chile: Free · Thailand: Free · Indonesia: Free · Brunei: Free · ASEAN: Free · Philippines: Free · Switzerland: Free · Viet Nam: Free · India: Free · Peru: Free · Australia: Free · Mongolia: Free · CPTPP: Free · EU: Free · UK: Free · ASEAN/Australia/New Zealand(RCEP): Free · China / (RCEP): Free · Korea / (RCEP): Free

Free(Free)KGPD / CR
3811.29 000Other
EPA rates (21)

Singapore: Free · Mexico: Free · Malaysia: Free · Chile: Free · Thailand: Free · Indonesia: Free · Brunei: Free · ASEAN: Free · Philippines: Free · Switzerland: Free · Viet Nam: Free · India: Free · Peru: Free · Australia: Free · Mongolia: Free · CPTPP: Free · EU: Free · UK: Free · ASEAN/Australia/New Zealand(RCEP): Free · China / (RCEP): Free · Korea / (RCEP): Free

Free(Free)KGPD / CR
3811.90OtherFree(Free)
3811.90 010- For fuel oil
EPA rates (21)

Singapore: Free · Mexico: Free · Malaysia: Free · Chile: Free · Thailand: Free · Indonesia: Free · Brunei: Free · ASEAN: Free · Philippines: Free · Switzerland: Free · Viet Nam: Free · India: Free · Peru: Free · Australia: Free · Mongolia: Free · CPTPP: Free · EU: Free · UK: Free · ASEAN/Australia/New Zealand(RCEP): Free · China / (RCEP): Free · Korea / (RCEP): Free

KGPD / CR
3811.90 090- Other
EPA rates (21)

Singapore: Free · Mexico: Free · Malaysia: Free · Chile: Free · Thailand: Free · Indonesia: Free · Brunei: Free · ASEAN: Free · Philippines: Free · Switzerland: Free · Viet Nam: Free · India: Free · Peru: Free · Australia: Free · Mongolia: Free · CPTPP: Free · EU: Free · UK: Free · ASEAN/Australia/New Zealand(RCEP): Free · China / (RCEP): Free · Korea / (RCEP): Free

KGPD / CR

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Source & disclaimer. Rates from Japan Customs, tariff schedule 2026-04-01 (Government Standard Terms of Use). Reference only — classification and the applicable rate are decided by customs at declaration; confirm with a licensed customs broker. Consumption tax (10%) applies on top of duty. See the import taxes guide and the customs FX rates.