Section 07 Plastics and articles thereof; rubber and articles thereof 40 Rubber and articles thereof 40 01 Natural rubber, balata, gutta-percha, guayule, chicle and similar natural gums, in primary forms or in plates, sheets or strip Commodity Code Description 40 01 10 - Natural rubber latex, whether or not pre-vulcanized 40 01 21 - - Smoked sheets 40 01 22 - - Technically specified natural rubber (TSNR) 40 01 29 - - Other 40 01 30 - Balata, gutta-percha, guayule, chicle and similar natural gums