3402909000 under HS Code Others, 3811900000 under HS Code 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 ADDITIVES FOR LUBRICATING OILS: OTHER, and 2811198000 under HS Code Others were the top imported HS Codes by K D LLC in 2021.