| 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. | 
| 3811.11 | 000 | Based on lead compounds | 
| 3811.19 |  | Additives for lubricating oils : | 
| 3811.21 | 000 | Containing petroleum oils or oils obtained from bituminous minerals | 
| 3811.90 | 010 | - For fuel oil | 
| 38.12 |  | Prepared rubber accelerators; compound plasticisers for rubber or plastics, not elsewhere specified or included; anti-oxidising preparations and other compound stabilisers for rubber or plastics. | 
| 3812.10 | 000 | Prepared rubber accelerators | 
| 3812.20 | 000 | Compound plasticisers for rubber or plastics | 
| 3812.20 |  | Anti-oxidising preparations and other compound stabilizers for rubber or plastics : | 
| 3812.31 |  | Mixtures of oligomers of 2,2,4-trimethyl-1,2-dihydroquinoline (TMQ) | 
| 3814.00 | 000 | Organic composite solvents and thinners, not elsewhere specified or included; prepared paint or varnish removers. | 
| 38.15 |  | Reaction initiators, reaction accelerators and catalytic preparations, not elsewhere specified or included. | 
| 38.15 |  | Supported catalysts | 
| 3815.11 | 000 | With nickel or nickel compounds as the active substance | 
| 3815.12 |  | With precious metal or precious metal compounds as the active substance | 
| 3815.12 | 100 | 1 Platinum catalysts | 
| 3815.12 | 210 | (1)For purification of the exhaust gas of motor vehicles | 
| 3815.19 | 100 | 1 Iron catalysts | 
| 3815.19 | 210 | - Silica-alumina catalysts | 
| 3815.90 | 100 | 1 Iron catalysts and platinum catalysts | 
| 3815.90 | 200 | 2 Silica-alumina catalysts | 
| 3815.90 | 310 | - Catalysts | 
| 3816.00 |  | Refractory cements, mortars, concretes and similar compositions, other than products of heading 38.01. |