| 2836.99.30 | 00 | Commercial ammonium carbonate and other ammonium carbonates | kg | 1.7% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 16% |
| 2836.99.40 | 00 | Lead carbonates | kg | 0.5% | Free (A,AU,BH, CA,CL,E, IL,J,JO, MA,MX,P,SG) | 4.5% |
| 2836.99.50 | 00 | Other | kg | 3.7% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 25% |
| 2837.19.01 | | Other | | Free | | Free |
| 2837.19.01 | 10 | Potassium cyanide | kg | | | |
| 2837.19.01 | 25 | Other | kg | | | |
| 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% |
| 2839 | | Silicates; commercial alkali metal silicates: | | | | |
| 2839.11.00 | 00 | Sodium metasilicates | kg | 1.1% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 3% |
| 2839.19.00 | 00 | Other | kg | 1.1% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 3% |
| 2839.90 | | Other: | | | | |
| 2839.90.10 | 00 | Of potassium | kg | 3.1% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 25% |
| 2839.90.50 | 00 | Other | kg | 3.1% | Free (A*,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 25% |
| 2840 | | Borates; peroxoborates (perborates): | | | | |
| 2840.11.00 | 00 | Disodium tetraborate (refined borax): | | | | |
| 2840.19.00 | 00 | Other | kg | 0.1% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 0.4% |
| 2840.20.00 | 00 | Other borates | kg | 3.7% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 25% |
| 2840.30.00 | | Peroxoborates (perborates) | | 3.7% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 25% |
| 2840.30.00 | 10 | Sodium perborate | kg | | | |
| 2840.30.00 | 50 | Other | kg | | | |
| 2841 | | Salts of oxometallic or peroxometallic acids: | | | | |
| 2841.30.00 | 00 | Sodium dichromate | kg | 2.4% | Free (A*,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 8.5% |
| 2841.50 | | Other chromates and dichromates; peroxochromates: | | | | |
| 2841.50.10 | 00 | Potassium dichromate | kg | 1.5% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 3.5% |
