| 2830 | | Sulfides; polysulfides, whether or not chemically defined: | | | | |
| 2830.90.10 | 00 | Zinc sulfide, luminescent grade having a purity of 99.99 percent or more by weight | kg | Free | | 11% |
| 2830.90.20 | 00 | Cadmium sulfide | kg | 3.1% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 25% |
| 2831 | | Dithionites and sulfoxylates: | | | | |
| 2831.10.10 | 00 | Sodium formaldehyde sulfoxylate | kg | Free | | 35% |
| 2832 | | Sulfites; thiosulfates: | | | | |
| 2832.30 | | Thiosulfates: | | | | |
| 2832.30.10 | 00 | Sodium thiosulfate | kg | 1.5% | Free (A*,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 4.5% |
| 2833 | | Sulfates; alums; peroxosulfates (persulfates): | | | | |
| 2833.11 | | Sodium sulfates: | | | | |
| 2833.11 | | Disodium sulfate: | | | | |
| 2833.11.10 | 00 | Salt cake | t | Free | | Free |
| 2833.11.50 | 10 | Anhydrous | t | | | |
| 2833.21.00 | 00 | Other sulfates: | | | | |
| 2833.21.00 | 00 | Of magnesium | kg | 3.7% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 20% |
| 2833.22.00 | 00 | Of aluminum | kg | Free | | 10% |
| 2833.27.00 | 00 | Of barium | kg | 0.6% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 4.2% |
| 2833.29.10 | 00 | Of cobalt | kg | 1.4% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 6.5% |
| 2833.29.30 | 00 | Of vanadium | kg V kg | 5.5% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P) 2.8% (SG) | 40% |
| 2833.30.00 | 00 | Alums | kg | 1.6% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 25% |
| 2833.40 | | Peroxosulfates (persulfates): | | | | |
| 2834 | | Nitrites; nitrates: | | | | |
| 2834.21.00 | 00 | Nitrates: | | | | |
| 2834.21.00 | 00 | Of potassium | t | Free | | Free |
| 2834.29.05 | 00 | Of bismuth | kg | 5.5% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX, P,SG) | 35% |
