| 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: | | | | |
| 4001.21.00 | | Smoked sheets | | Free | | Free |
| 4001.21.00 | 10 | Grade 1 | kg | | | |
| 4001.21.00 | 20 | Grade 2 | kg | | | |
| 4001.21.00 | 30 | Grade 3 | kg | | | |
| 4001.21.00 | 50 | Other | kg | | | |
| 4001.22.00 | | Technically specified natural rubber (TSNR) | | Free | | Free |
| 4001.22.00 | 05 | Grade 5 | kg | | | |
| 4001.22.00 | 10 | Grade CV | kg | | | |
| 4001.22.00 | 15 | Grade L | kg | | | |
| 4001.22.00 | 20 | Grade 10 | kg | | | |
| 4001.22.00 | 25 | Grade 20 | kg | | | |
| 4001.22.00 | 50 | Other | kg | | | |
| 4001.29.00 | 00 | Other | kg | Free | | Free |
| 4001.30.00 | | Balata, gutta-percha, guayule, chicle and similar natural gums | | Free | | Free |
| 4001.30.00 | 05 | Balata | kg | | | |
| 4001.30.00 | 10 | Gutta-percha and guttas, not elsewhere specified or included | kg | | | |
| 4001.30.00 | 15 | Jelutong or pontianak | kg | | | |
| 4001.30.00 | 20 | Chicle | kg | | | |
| 4001.30.00 | 25 | Leche caspi and sorva | kg | | | |
| 4001.30.00 | 50 | Other | kg | | | |
| 4002 | | Synthetic rubber and factice derived from oils, in primary forms or in plates, sheets or strip; mixtures of any product of heading 4001 with any product of this heading, in primary forms or in plates, sheets or strip: | | | | |
| 4002.11.00 | 00 | Styrene-butadiene rubber (SBR); carboxylated styrene-butadiene rubber (XSBR): | | | | |
