55 | | | HS Code for Synthetic or artificial fibers, discontinued |
| 5503 | | HS Code for Synthetic staple fibres not carded combed or otherwise |
| | 55033000 | Uncoated polyacrylonitrile synthetic fiber staple fiber |
| | 55034000 | Uncoated polypropylene staple fiber |
| | 55039010 | Uncooked polyphenylene sulfide staple fiber |
| | 55039090 | Other synthetic fiber staple fibers that are not combed |
| 5504 | | HS Code for Artificial staple fibres not carded combed or otherwise processed for spinning |
| | 55041010 | Not made of bamboo viscose staple fiber |
| | 55041021 | Not combed wood flame retardant viscose staple fiber |
| | 55041029 | Other non-combed wood non-flame retardant viscose staple fibers |
| | 55041090 | Other uncoated viscose staple fibers |
| | 55049000 | Not made of other man-made fiber staple fiber |
| 5505 | | HS Code for Waste (including noils yarn waste and garnetted stock) of man-made fibres |
| | 55051000 | Synthetic fiber waste |
| | 55052000 | Man - made fiber waste |
| 5506 | | HS Code for Synthetic staple fibres carded combed or otherwise processed for spinning |
| | 55061011 | Has been combed with isophthalamide |
| | 55061012 | Has been combed with p-phenylene terephthalamide |
| | 55061019 | Other scaffolds that have been combed with aromatic polyamide |
| | 55061090 | Other combed nylon or other polyamide staple fibers |
| | 55062000 | Combed polyester staple fiber |
| | 55063000 | Combed polyacrylonitrile and its denatured fiber staple fibers |
| | 55064000 | Combed polypropylene staple fiber |
| | 55069010 | Combed polyphenylene sulfide staple fiber |
| | 55069090 | Has been combed with other synthetic fiber staple fibers |
| 5507 | | HS Code for Artificial staple fibres carded combed or otherwise processed for spinning |
| | 55070000 | Combed man-made fiber staple fiber |
| 5508 | | HS Code for Sewing thread of man-made staple fibres whether or not put up for retail sale |
| | 55081000 | Synthetic fiber staple sewing thread |
| | 55082000 | Man - made fiber staple sewing thread |