| 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 |
| 4706 | | Pulps of fibers derived from recovered (waste and scrap) paper or paperboard or of other fibrous cellulosic material: | | | | |
| 4706.20.00 | 00 | Pulps of fibers derived from recovered (waste and scrap) paper or paperboard | t adw | Free | | Free |
| 4707 | | Recovered (waste and scrap) paper and paperboard: | | | | |
| 7112 | | Waste and scrap of precious metal or of metal clad with precious metal; other waste and scrap containing precious metal or precious metal compounds, of a kind used principally for the recovery of precious metal: | | | | |
| 8404 | | Auxiliary plant for use with boilers of heading 8402 or 8403 (for example, economizers, super-heaters, soot removers, gas recoverers); condensers for steam or other vapor power units; parts thereof: | | | | |
| 8414.80.20 | 05 | Refrigerant recovery units | No. | | | |
| 8421.29.00 | 05 | Refrigerant recovery and recycling units | No. | | | |
| 8548.10.05 | | For recovery of lead | | Free | | 11.5% |
| 8548.10.25 | 00 | For recovery of lead | No. kg | Free | | 11.5% |
| 9801.00.20 | 00 | Articles, previously imported, with respect to which the duty was paid upon such previous importation or which were previously free of duty pursuant to the Caribbean Basin Economic Recovery Act or Title V of the Trade Act of 1974, if (1) reimported, without having been advanced in value or improved in condition by any process of manufacture or other means while abroad, after having been exported under lease or similar use agreements, and (2) reimported by or for the account of the person who imported it into, and exported it from, the United States | X | Free | | Free |
| 9817.00.80 | | Unwrought metal including remelt scrap ingot (except copper, lead, zinc and tungsten) in the form of pigs, ingots or billets (a) which are defective or damaged, or have been produced from melted down metal waste and scrap for convenience in handling and transportation without sweetening, alloying, fluxing or deliberate purifying, and (b) which cannot be commercially used without re-manufacture; relaying or rerolling rails; and articles of metal (except articles of lead, of zinc or of tungsten, and not including metal-bearing materials provided for in section VI, chapter 26 or subheading 8548.10 and not including unwrought metal provided for in chapters 72-81) to be used in remanufacture by melting or to be processed by shredding, shearing, compacting or similar processing which renders them fit only for the recovery of the metal content: | | | | |
