Silk Cocoon Waste
Waste material consisting of silk cocoons unsuitable for reeling due to damage or immaturity, classified under HTS 5003.00.90.00 as silk waste. This byproduct is generated during silk production and used for secondary processing. It falls under 'Other' silk waste, distinct from reeling-grade cocoons in heading 5001.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If cocoons are suitable for reeling
Reelable silk cocoons are classified in heading 5001 as raw silk-worm cocoons, not waste.
If heavily contaminated or sorted textile rags
Contaminated silk waste resembling sorted rags falls under Chapter 63 as used textile articles.
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Import Tips & Compliance
• Verify the cocoons are truly unsuitable for reeling via supplier certification to avoid reclassification; declare exact weight and moisture content accurately; check for contamination that could shift it to waste chapter 6310
Related Products under HTS 5003.00.90.00
Silk Yarn Waste
Discarded remnants and clippings from silk yarn production, classified as 'Other' silk waste under HTS 5003.00.90.00. This includes short fibers and tangles not suitable for re-spinning directly. It is distinguished from usable yarn in heading 5004-5006.
Garnetted Silk Stock
Silk fibers recovered through garnettng machines from waste fabric or yarn, categorized as 'Other' silk waste in HTS 5003.00.90.00. This indeterminate color stock is used for low-grade spinning. It matches the legal definition of garnetted stock explicitly.
Silk Noil Waste
Short fiber silk noils produced during reeling or throwing, falling under 'Other' silk waste HTS 5003.00.90.00. These tangled bundles are unsuitable for high-quality yarn but valuable for coarser textiles. Distinct from raw cocoons or finished yarns.
Degumming Silk Waste
Fibrous residue from the degumming process of silk cocoons, classified in HTS 5003.00.90.00 as other silk waste. This sericin-removed material is in natural fiber state per unbleached yarn notes. Used in non-woven applications or blending.
Silk Reeling Scrap
Scrap fibers and broken filaments collected during silk reeling operations, under 'Other' in HTS 5003.00.90.00. This waste has the natural color of silk fibers matching unbleached definitions. Ideal for recycling into spun silk.
Tussah Silk Waste
Waste from wild tussah silk production including damaged cocoons and yarn remnants, HTS 5003.00.90.00 other silk waste. Natural color fibers fit unbleached yarn criteria in subheading notes. Used for rustic textiles or padding.