| 2519 | | Natural magnesium carbonate (magnesite); fused magnesia; dead-burned (sintered) magnesia, whether or not containing small quantities of other oxides added before sintering; other magnesium oxide, whether or not pure: | | | | |
| 2528 | | Natural borates and concentrates thereof (calcined or not), but not including borates separated from natural brine; natural boric acid containing not more than 85 percent of H3BO3 calculated on the dry weight: | | | | |
| 2529.21.00 | 00 | Containing by weight 97 percent or less of calcium fluoride | t | Free | | 13.5% |
| 2529.22.00 | 00 | Containing by weight more than 97 percent of calcium fluoride | t | Free | | $5.51/t |
| 2602.00.00 | 40 | Containing less than 47 percent by weight of manganese | kg Mn kg | | | |
| 2602.00.00 | 60 | Containing 47 percent or more by weight of manganese | kg Mn kg | | | |
| 2620 | | Slag, ash and residues (other than from the manufacture of iron or steel), containing arsenic, metals or their compounds: | | | | |
| 2620.11.00 | 00 | Containing mainly zinc: | | | | |
| 2620.21.00 | | Containing mainly lead: | | | | |
| 2620.30.00 | | Containing mainly copper | | Free | | 8.8￠/kg on copper content + 3.3￠/kg on lead content + 3.7￠/kg on zinc content |
| 2620.40.00 | | Containing mainly aluminum | | Free | | Free |
| 2620.60 | | Containing arsenic, mercury, thallium or their mixtures, of a kind used for the extraction of arsenic or those metalsor for the manufacture of their chemical compounds: | | | | |
| 2620.91.00 | 00 | Containing antimony, beryllium, cadmium, chromium or their mixtures | kg | Free | | 30% |
| 2620.99.10 | 00 | Containing mainly vanadium | kg V2O5 kg | Free | | Free |
| 2620.99.20 | 00 | Containing mainly tungsten | kg W kg | 17.6￠/kg on tungsten content + 3.8% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX, P,SG) | $1.32/kg on tungsten content + 40% |
| 2620.99.30 | 00 | Materials not provided for elsewhere in this heading containing by weight over 10 percent nickel | kg Ni kg | Free | | Free |
| 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 |
| 2707.99.51 | 00 | Containing more than 50 percent by weight of hydroxybenzene | kg | 2.9￠/kg + 12.5% | Free (A,AU,BH,CA, CL,E,IL,J,JO, MA,MX,P) 1￠/kg + 4.6% (SG) | 7.7￠/kg + 29.5% |
| 2710 | | Petroleum oils and oils obtained from bituminous minerals, other than crude; preparations not elsewhere specified or included, containing by weight 70 percent or more of petroleum oils or of oils obtained from bituminous minerals, these oils being the basic constituents of the preparations; waste oils: | | | | |
| 2710.11 | | Petroleum oils and oils obtained from bituminous minerals, other than crude; preparations not elsewhere specified or included, containing by weight 70 percent or more of petroleum oils or of oils obtained from bituminous minerals, these oils being the basic constituents of the preparations, other than waste oils: | | | | |
| 2710.19.05 | 05 | Containing not more than 500 ppm of sulfur | bbl | | | |
| 2710.19.05 | 15 | Containing more than 500 ppm of sulfur | bbl | | | |
| 2710.19.10 | 08 | Containing more than 500 ppm of sulfur | bbl | | | |
| 2710.19.10 | 11 | Containing not more than 15 ppm of sulfur | bbl | | | |
