| 550700 | -Artificial staple fibres, carded, combed or otherwise processed for spinning. |
| 550810 | Sewing thread of man-made staple fibres, whether or not put up for retail sale.-Of synthetic staple fibres |
| 550820 | Sewing thread of man-made staple fibres, whether or not put up for retail sale.-Of artificial staple fibres |
| 550911 | Yarn (other than sewing thread) of synthetic staple fibres, not put up for retail sale.-Single yarn |
| 550912 | Yarn (other than sewing thread) of synthetic staple fibres, not put up for retail sale.-Multiple (folded) or cabled yarn |
| 550921 | Yarn (other than sewing thread) of synthetic staple fibres, not put up for retail sale.-Single yarn |
| 550922 | Yarn (other than sewing thread) of synthetic staple fibres, not put up for retail sale.-Multiple (folded) or cabled yarn |
| 550931 | Yarn (other than sewing thread) of synthetic staple fibres, not put up for retail sale.-Single yarn |
| 550932 | Yarn (other than sewing thread) of synthetic staple fibres, not put up for retail sale.-Multiple (folded) or cabled yarn |
| 550941 | Yarn (other than sewing thread) of synthetic staple fibres, not put up for retail sale.-Single yarn |
| 550942 | Yarn (other than sewing thread) of synthetic staple fibres, not put up for retail sale.-Multiple (folded) or cabled yarn |
| 550951 | Yarn (other than sewing thread) of synthetic staple fibres, not put up for retail sale.-Mixed mainly or solely with artificial staple fibres |
| 550952 | Yarn (other than sewing thread) of synthetic staple fibres, not put up for retail sale.-Mixed mainly or solely with wool or fine animal hair |
| 550953 | Yarn (other than sewing thread) of synthetic staple fibres, not put up for retail sale.-Mixed mainly or solely with cotton |
| 550959 | Yarn (other than sewing thread) of synthetic staple fibres, not put up for retail sale.-Other |
