From Chapter 38: Chapter 38
| HTS Code | Description | General Duty |
|---|---|---|
| 3815110000 | Supported catalysts With nickel or nickel compounds as the active substance | Free |
| 3815120000 | Supported catalysts With precious metal or precious metal compounds as the active substance | Free |
| 3815120010 | With precious metal or precious metal compounds as the active substance With platinum group metals as the active substance | Free |
| 3815120090 | With precious metal or precious metal compounds as the active substance Other | Free |
| 3815190000 | Supported catalysts Other | Free |
| 3815901000 | Consisting wholly of inorganic substances Of bismuth, of tungsten or of vanadium | 6.5% |
| 3815902000 | Consisting wholly of inorganic substances Of mercury or of molybdenum | 2.8% |
| 3815903000 | Consisting wholly of inorganic substances Other | Free |
| 3815905000 | Other Other | 5% |