Heading 3811 (Anti seismic agents, antioxidants, anti glue agents, viscosity improvers, anti-corrosion agents, and other formulation additives used for mineral oil (including gasoline) or other liquids used for the same purpose as mineral oil) contains 3 sub-codes. Open a sub-code for the applicable MFN rate, temporary rate, consumption tax, VAT and any FTA / RCEP preferential rate.