Bivoltine Silkworm Cocoons
Bivoltine silkworm cocoons, producing two generations per year, ideal for reeling into strong, uniform silk filaments. These high-yield cocoons are suitable for commercial reeling operations. They are precisely covered by HTS 5001.00.00.00 as raw silkworm cocoons ready for processing.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If pupae extracted and sold as food
Silkworm pupae intended for human consumption are classified under edible animal products in 0407.
If for univoltine strain post-reeling
Any reeled silk, regardless of strain, is under 5002; bivoltine status irrelevant after processing.
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Import Tips & Compliance
• Pair with commercial invoice specifying cocoon yield per 1,000 units for accurate duty assessment
• Ensure no pupae piercing; pierced cocoons risk reclassification as inedible animal products
• Register as agricultural import with USDA APHIS if from non-approved regions to expedite clearance
Related Products under HTS 5001.00.00.00
Raw Bombyx Mori Silkworm Cocoons
Natural silkworm cocoons from Bombyx mori, the primary species used in sericulture, suitable for reeling into raw silk thread. These unprocessed cocoons contain intact silk glands ready for boiling and unwinding. They fall under HTS 5001.00.00.00 as they are specifically silkworm cocoons suitable for reeling, the first stage in silk production.
Fresh White Silkworm Cocoons
Freshly harvested white silkworm cocoons suitable for reeling, prized for their high-quality, fine silk filament. These are typically sourced from controlled sericulture farms and processed promptly to maintain integrity. Classified under HTS 5001.00.00.00 due to their direct suitability for silk reeling without further preparation.
Yellow Silkworm Cocoons for Reeling
Yellow-tinted silkworm cocoons suitable for reeling, valued for producing robust silk used in upholstery threads. These natural-colored cocoons from specific mulberry-fed worms maintain filament integrity for unwinding. HTS 5001.00.00.00 applies as they meet the criteria for reeling suitability in raw form.
Pierced Silkworm Cocoons Suitable for Reeling
Pierced silkworm cocoons where pupae have emerged naturally, but filaments remain intact for reeling into silk. These are commonly used in artisanal silk production. HTS 5001.00.00.00 includes them as long as suitable for reeling, per chapter definitions.
Mulberry-Fed Silkworm Cocoons
Silkworm cocoons fed exclusively on mulberry leaves, yielding premium silk suitable for high-end reeling. Known for purity and fineness, they are a staple in luxury textile imports. Classified under HTS 5001.00.00.00 for their raw, reeling-ready state.
Commercial Grade Silkworm Cocoons
Commercial grade silkworm cocoons optimized for mass reeling in textile mills, with consistent size and filament quality. These support large-scale silk production. HTS 5001.00.00.00 covers them as standard reeling-suitable raw material.