Heading 5504: Artificial staple fibers, not carded, combed or otherwise processed for spinning:

From Chapter 55: Chapter 55

HTS Codes (10-Digit)

HTS Code Description General Duty
5504100000
Artificial staple fibers, not carded, combed or otherwise processed for spinning Of viscose rayon
 4.3%
5504900000
Artificial staple fibers, not carded, combed or otherwise processed for spinning Other
 4.3%