Garnetted stock is produced by passing wool rags, yarn waste, or worn fabric through a garnetting machine, which tears the material apart to recover individual fibers. This mechanical reclamation step is the defining criterion. Material that has not been through a garnetting machine — even if it is loose fiber waste — remains classified under the wool waste heading rather than here.

No. Once garnetted stock is carded or combed, it advances to heading 5105 (carded or combed wool and animal hair). Heading 5104 covers only the garnetted fiber in its recovered state, before any subsequent alignment or preparation for spinning.