HSChapter 50
Silkworm cocoons suitable for reeling represent the earliest stage of the raw silk supply chain, harvested before the chrysalis is killed and the continuous filament is unwound. Japan leads US imports under this heading, a reflection of Japan's long-standing sericulture tradition and the premium placed on Japanese cocoon quality in specialty textile markets. Because these are agricultural products of animal origin, importers must be aware of USDA APHIS quarantine requirements governing the entry of animal-derived materials that could harbor pests or pathogens. The single US tariff line (5001000000) covers all reelable cocoons regardless of variety or origin.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Yes. As an animal-derived agricultural product, silkworm cocoons are subject to USDA APHIS review at the port of entry. Importers should verify current APHIS admissibility requirements and may need to provide phytosanitary or health certificates from the country of origin. Consulting a licensed customs broker familiar with APHIS entry procedures is advisable before shipment.
Cocoons suitable for reeling (HTS 500100) are intact, undamaged cocoons from which a continuous silk filament can be unwound. Cocoons that are pierced, double, or otherwise unsuitable for reeling are classified as silk waste under HTS 500300. The physical condition and commercial usability of the cocoon at the time of importation determine the correct heading.
Supplier Network
Get discovered by U.S. importers searching for HS 500100 — Silkworm Cocoons Suitable for Reeling. Be the first supplier listed.
Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| INDONESIA | -- | $6K | +$6K |
| MEXICO | -- | $3K | +$3K |
| HUNGARY | -- | -- | -- |
| UNITED ARAB EMIRATES | -- | -- | -- |
| CHINA | -- | -- | -- |
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % |
|---|---|---|---|
| 5001000000 | SILKWORM COCOONS SUITABLE FOR REELING | $0 | -- |
SILKWORM COCOONS SUITABLE FOR REELING
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 5001000000 | SILKWORM COCOONS SUITABLE FOR REELING | $9K |
SILKWORM COCOONS SUITABLE FOR REELING
5.4K kg
WOV FAB OV 85% SILK OR SILK WASTE EXCEPT NOIL SLK
HS 500720
WOVEN FABRICS OF NOIL SILK
HS 500710
SILK YARN, NOT SPUN FROM WASTE, NOT RETAIL PACKED
HS 500400
WOVEN FABRICS OF SILK OR SILK WASTE, NESOI
HS 500790
SILK YARN & YARN FROM WASTE RETAIL PK; SILKWM GUT
HS 500600
YARN SPUN FROM SILK WASTE NOT PUT UP RETAIL SALE
HS 500500
| Port | Imports | Exports | Balance |
|---|---|---|---|
| ANCHORAGE, AK | -- | $6K | +$6K |
| LAREDO, TX | -- | $3K | +$3K |
| NEW ORLEANS, LA | -- | -- | -- |