Modacrylic Filament Tow for Flame-Retardant Fabrics

Modacrylic continuous filament tow designed for producing inherently flame-retardant textiles like upholstery and protective clothing. Falls under HTS 5501.30.00 as synthetic filament tow of modacrylic composition, supplied in uncrimped form for further processing.

Import Duty Rates by Country of Origin

Origin Country	MFN Rate	Ch.99 Surcharges	Total Effective Rate
🇨🇳China	7.5%	+35.0%	42.5%
🇲🇽Mexico	7.5%	+10.0%	17.5%
🇨🇦Canada	7.5%	+10.0%	17.5%
🇩🇪Germany	7.5%	+10.0%	17.5%
🇯🇵Japan	7.5%	+10.0%	17.5%

More Specific Codes

This product may fall under a more specific subheading:

5501.30.00.10Containing 92 percent or more by weight of acrylonitrile units with filaments numbering fewer than 70,000 (+/-2000) with filament diameter 1.59 decitex (plus or minus 0.027) or less, or in a separable tow construction capable of being separated into tows of 70,000 (+/-2000) or fewer with filament diameter 1.59 decitex (plus or minus 0.027) or less.

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5501.30.00.90Other

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Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

5503.30.00Lower: 39.3% vs 42.5%

If chopped into staple form

Cutting tow into discontinuous staple fibers reclassifies to heading 5503 for synthetic staple.

5402.47Lower: 18% vs 42.5%

If drawn and textured for yarn production

Processing into yarn form shifts to Chapter 54 under synthetic filament yarns.

5508.10.00Higher: 46.4% vs 42.5%

If sewn into sewing thread

If converted to sewing thread, it falls under heading 5508 regardless of acrylic content.

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Import Tips & Compliance

• Include flame-retardancy certifications and fiber analysis reports to support modacrylic classification

• Declare exact modacrylic polymer composition as it shares the subheading with acrylic

Related Products under HTS 5501.30.00

Modacrylic Tow for Industrial Filter Media

Modacrylic filament tow engineered for high-temperature filtration fabrics in industrial air and liquid systems. Classified as acrylic or modacrylic synthetic filament tow under HTS 5501.30.00 in its raw, unprocessed state.

Modacrylic High-Bulk Tow for Upholstery

Modacrylic tow with potential for high bulk development in upholstery fill and backing yarns. HTS 5501.30.00 for this raw synthetic modacrylic filament tow.

Acrylic Tow for Fishing Net Production

Durable acrylic filament tow for twine and rope used in fishing nets and marine applications. HTS 5501.30.00 as unprocessed synthetic acrylic tow.

Acrylic Filament Tow for Carpet Yarn

Unprocessed acrylic filament tow consisting of continuous filaments suitable for conversion into yarn for carpet manufacturing. Classified under HTS 5501.30.00 as synthetic filament tow specifically of acrylic, prior to texturing or cutting into staple fibers.

Acrylic Tow for Wig and Hair Extension Manufacturing

High-luster acrylic filament tow used as base material for synthetic wigs, hairpieces, and extensions. HTS 5501.30.00 applies to this unprocessed synthetic tow of acrylic filaments before being cut or styled into final hair products.

Acrylic Filament Tow for Hand-Knitting Yarns

Coarse acrylic tow supplied to yarn spinners for creating bulky hand-knitting and craft yarns. This synthetic filament tow under HTS 5501.30.00 remains untextured and ready for drafting into consumer yarn products.