Sub Headings of 2811
| 2811.11.00.00 | Hydrogen fluoride (Hydrofluoric acid) |
| 2811.19.10.00 | Arsenic acid |
| 2811.19.30.00 | Hydrobromic acid |
| 2811.19.60. | Other |
| 2811.21.00.00 | Carbon dioxide |
| 2811.22.10.00 | Synthetic silica gel |
| 2811.22.50.00 | Other |
| 2811.29.10.00 | Arsenic trioxide |
| 2811.29.20.00 | Selenium dioxide |
| 2811.29.30.00 | Sulfur dioxide |
| 2811.29.50.00 | Other |