| 2837 | | Cyanides, cyanide oxides and complex cyanides: | | | | |
| 2837.11.00 | 00 | Cyanides and cyanide oxides: | | | | |
| 2837.11.00 | 00 | Of sodium | kg | Free | | Free |
| 2837.19.01 | | Other | | Free | | Free |
| 2837.19.01 | 10 | Potassium cyanide | kg | | | |
| 2837.19.01 | 15 | Calcium cyanide | kg | | | |
| 2837.19.01 | 25 | Other | kg | | | |
| 2837.20 | | Complex cyanides: | | | | |
| 2837.20.10 | 00 | Potassium ferricyanide | kg | 1.1% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 5.1% |
| 2837.20.51 | 00 | Other | kg | 1.7% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 8.5% |
