| 3824.90.45 | 00 | Mixtures that are in whole or in part of hydrocarbons derived in whole or in part from petroleum, shale oil or natural gas | kg | 6.5% | Free (A+,AU,BH, CA,CL,D,E,IL,J, JO,K,MA,MX, P,SG) | 25% |
| 3913 | | Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms: | | | | |
| 3913.90.10 | 00 | Chemical derivatives of natural rubber | kg | Free | | 20% |
| 4001 | | Natural rubber, balata, gutta-percha, guayule, chicle and similar natural gums, in primary forms or in plates, sheets or strip: | | | | |
| 4001.10.00 | 00 | Natural rubber latex, whether or not pre-vulcanized | kg | Free | | Free |
| 4001.21.00 | | Natural rubber in other forms: | | | | |
| 4001.22.00 | | Technically specified natural rubber (TSNR) | | Free | | Free |
| 4001.30.00 | | Balata, gutta-percha, guayule, chicle and similar natural gums | | Free | | Free |
| 4006.90.10 | 00 | Of natural rubber | kg | Free | | 35% |
| 4008.11.10 | 00 | Of natural rubber | kg | Free | | 25% |
| 4008.19.20 | 00 | Of natural rubber: | | | | |
| 4012.90.30 | 00 | Of natural rubber: | | | | |
| 4015.11.01 | 10 | Of natural rubber | doz.prs. | | | |
| 4015.19.05 | 10 | Of natural rubber | doz.prs. | | | |
| 4016.99.30 | 00 | Of natural rubber: | | | | |
| 4501 | | Natural cork, raw or simply prepared; waste cork; crushed, granulated or ground cork: | | | | |
| 4501.10.00 | 00 | Natural cork, raw or simply prepared | kg | Free | | Free |
| 4502.00.00 | 00 | Natural cork, debacked or roughly squared, or in rectangular (including square) blocks, plates, sheets or strip (including sharp-edged blanks for corks or stoppers) | kg | Free | | 22¢/kg |
| 4503 | | Articles of natural cork: | | | | |
| 6801.00.00 | 00 | Setts, curbstones and flagstones, of natural stone (except slate) | t | 2.8% | Free (A,AU,BH,CA, CL,E,IL,J,JO, MA,MX,P,SG) | 60% |
| 6802 | | Worked monumental or building stone (except slate) and articles thereof, other than goods of heading 6801; mosaic cubes and the like, of natural stone (including slate), whether or not on a backing; artificially colored granules, chippings and powder, of natural stone (including slate): | | | | |
| 6804 | | Millstones, grindstones, grinding wheels and the like, without frameworks, for grinding, sharpening, polishing, trueing or cutting, hand sharpening or polishing stones, and parts thereof, of natural stone, of agglomerated natural or artificial abrasives, or of ceramics, with or without parts of other materials: | | | | |
| 6804.21.00 | 00 | Of agglomerated synthetic or natural diamond | No. | Free | | 30% |
| 6804.23.00 | 00 | Of natural stone | No. | Free | | Free |
| 6805 | | Natural or artificial abrasive powder or grain, on a base of textile material, of paper, of paperboard or of other materials, whether or not cut to shape or sewn or otherwise made up: | | | | |
Harmonized Tariff Schedule of the United States inquiry: ɡ
