| 400211 | 400211 - Rubber; synthetic, styrene-butadiene rubber (SBR) and carboxy |
| 400219 | 400219 - Rubber; synthetic, styrene-butadiene rubber (SBR) and carboxy |
| 400220 | 400220 - Rubber; synthetic, butadiene rubber (BR), in primary forms or |
| 400231 | 400231 - Rubber; synthetic, isobutene-isoprene (butyl) rubber (IIR), i |
| 400239 | 400239 - Rubber; synthetic, halo-isobutene-isoprene rubber (CIIR or BI |
| 400241 | 400241 - Rubber; synthetic, chloroprene (chlorobutadiene) rubber (CR), |
| 400249 | 400249 - Rubber; synthetic, chloroprene (chlorobutadiene) rubber (CR), |
| 400251 | 400251 - Rubber; synthetic, acrylonitrile-butadiene rubber (NBR), late |
| 400259 | 400259 - Rubber; synthetic, acrylonitrile-butadiene rubber (NBR), (oth |
| 400260 | 400260 - Rubber; synthetic, isoprene rubber (IR), in primary forms or |
| 400270 | 400270 - Rubber; synthetic, ethylene-propylene-non-conjugated diene ru |
| 400280 | 400280 - Rubber; mixtures of natural and synthetic rubbers of heading |
| 400291 | 400291 - Rubber; synthetic, n.e.c. in heading 4002, latex, in primary |
| 400299 | 400299 - Rubber; synthetic, n.e.c. in heading 4002, (other than latex) |