| 2615.10.00 | 00 | Zirconium ores and concentrates | kg | Free |  | Free | 
| 2615.90.60 | 30 | Niobium (columbium) ores and concentrates | kg |  |  |  | 
| 2615.90.60 | 60 | Tantalum ores and concentrates | kg |  |  |  | 
| 2615.90.60 | 90 | Vanadium ores and concentrates | kg V2O5 kg |  |  |  | 
| 2616 |  | Precious metal ores and concentrates: |  |  |  |  | 
| 2616.10.00 |  | Silver ores and concentrates |  | 0.8¢/kg on lead content | Free (A+,AU,BH, CA,CL,D,E,IL,J, JO,MA,MX, P,SG) | 8.8¢/kg on copper content +  3.3¢/kg on lead content +  3.7¢/kg on zinc content | 
| 2617 |  | Other ores and concentrates: |  |  |  |  | 
| 2617.10.00 | 00 | Antimony ores and concentrates | kg Sb kg | Free |  | Free | 
| 2617.90.00 | 30 | Beryllium ores and concentrates | kg |  |  |  | 
| 2618.00.00 | 00 | Granulated slag (slag sand) from the manufacture or iron or steel | t | Free |  | 10% | 
| 2619.00 |  | Slag, dross (other than granulated slag), scalings and other waste from the manufacture of iron or steel: |  |  |  |  | 
| 2620 |  | Slag, ash and residues (other than from the manufacture of iron or steel), containing arsenic, metals or their compounds: |  |  |  |  | 
| 2620.19.30 | 00 | Zinc dross and zinc skimmings | kg Zn kg | Free |  | 3.3¢/kg | 
| 2620.21.00 |  | Leaded gasoline sludges and leaded anti- knock compound sludges |  | Free |  | 8.8¢/kg on  copper content +  3.3¢/kg on lead content +  3.7¢/kg on zinc content | 
| 2620.99.50 | 00 | Slag containing by weight over 40 percent titanium, and which if containing over 2 percent by weight of copper, lead, or zinc is not to be treated for the recovery thereof | kg | Free |  | Free | 
| 2620.99.75 |  | Other materials which are residues not advanced in value or condition by any means, and which if containing over 2 percent by weight of copper, lead or zinc are not to be treated for the recovery thereof |  | Free |  | Free | 
| 2621 |  | Other slag and ash, including seaweed ash (kelp); ash and residues from the incineration of municipal waste: |  |  |  |  | 
| 2621.10.00 | 00 | Ash and residues from the incineration of municipal waste | t | Free |  | Free | 
| 2701 |  | Coal; briquettes, ovoids and similar solid fuels manufactured from coal: |  |  |  |  | 
| 2701.20.00 | 00 | Briquettes, ovoids and similar solid fuels manufactured from coal | t | Free |  | Free | 
| 2704.00.00 |  | Coke and semicoke of coal, of lignite or of peat, whether or not agglomerated; retort carbon |  | Free |  | Free | 
| 2704.00.00 | 11 | Coke and semicoke of coal: |  |  |  |  | 
| 2704.00.00 | 11 | Coke larger than 100 mm (4 inches) in maximum diameter and at least 50 percent of which is retained on a 100-mm (4-inch) sieve after drop shatter testing pursuant to ASTM D 3038, of a kind used in foundries | t |  |  |  | 
| 2705.00.00 | 00 | Coal gas, water gas, producer gas and similar gases, other than petroleum gases and other gaseous hydrocarbons | thousand m3 kg | Free |  | Free | 
| 2706.00.00 | 00 | Tar distilled from coal, from lignite or from peat, and other mineral tars, whether or not dehydrated or partially distilled, including reconstituted tars | liters | Free |  | Free |