| 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% |
| 2839.90.10 | 00 | Of potassium | 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): | | | | |
| 2840.11.00 | 00 | Anhydrous | kg | 0.3% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 1.2% |
| 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 | | | |
| 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% |
| 2841.61.00 | 00 | Manganites, manganates and permanganates: | | | | |
| 2841.61.00 | 00 | Potassium permanganate | kg | 5% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX, P,SG) | 23% |
| 2841.69.00 | 10 | Sodium permanganate | kg | | | |
| 2841.70 | | Molybdates: | | | | |
| 2841.70.10 | 00 | Of ammonium | kg Mo kg | 4.3% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 29% |
| 2841.80.00 | | Tungstates (wolframates) | | 5.5% | Free (A+,AU,BH, CA,CL,D,E,IL,J, JO,MA,MX, P,SG) | 49.5% |
| 2841.80.00 | 10 | Of ammonium | kg W kg | | | |
| 2841.80.00 | 20 | Of calcium | kg W kg | | | |
| 2841.90.10 | 00 | Vanadates | kg V kg | 5.5% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX, P,SG) | 40% |
| 2841.90.20 | 00 | Ammonium perrhenate | kg | 3.1% | Free (A*,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 25% |
| 2841.90.30 | 00 | Potassium stannate | kg | 3.1% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 25% |
| 2841.90.40 | 00 | Aluminates | kg | 3.1% | Free (A,AU,BH, CA,CL,E,IL,J,JO, K,MA,MX,P,SG) | 25% |
