| 54 | Chemical threads; plane and similar threads from chemical textile materials |
| 5402 | Threads integrated synthetic (other than sewing threads) not packed for retail sale, including synthetic monoits of linear density less than 67 dtex |
| 540269 | Other integrated synthetic threads (except sewing threads), multi-scale (two) or single-scale, not packed for retail sales |
| 54026990 | Other threads (except sewing), not packed, multicular or one-bended, including synthetic monoits of linear density less than 67 dtex |