Chapter 50
Silk
By TariffCenter Research Team · Updated 2026-04-09 · Source: USITC Harmonized Tariff Schedule
At a glance
Chapter 50 contains 41 HTS lines covering silk. General U.S. duty rates: Free to 3.9%. Section 301 surcharges apply on selected lines for imports from China. Reciprocal tariffs apply following the February 2026 SCOTUS ruling.
5001 — Silkworm cocoons suitable for reeling
#Heading 5001 contains 1 HTS line. General U.S. duty rates: Free. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 5001.00.00.00 | Silkworm cocoons suitable for reeling | Free | 301: 25%S122: 10% |
5002 — Raw silk (not thrown)
#Heading 5002 contains 1 HTS line. General U.S. duty rates: Free. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 5002.00.00.00 | Raw silk (not thrown) | Free | 301: 25%S122: 10% |
5003 — Silk waste (including cocoons unsuitable for reeling, yarn waste and garnetted stock)
#Heading 5003 contains 3 HTS lines. General U.S. duty rates: Free–2.5%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
5003.00
Silk waste (including cocoons unsuitable for reeling, yarn waste and garnetted stock):
Free
5003.00.10.00
Not carded or combed
Free
5003.00.90.00
Other
2.5%
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 5003.00 | Silk waste (including cocoons unsuitable for reeling, yarn waste and garnetted stock): | Free | 301: 25%S122: 10% |
| 5003.00.10.00 | Not carded or combed | Free | 301: 25%S122: 10% |
| 5003.00.90.00 | Other | 2.5% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
5004 — Silk yarn (other than yarn spun from silk waste) not put up for retail sale
#Heading 5004 contains 1 HTS line. General U.S. duty rates: Free. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 5004.00.00.00 | Silk yarn (other than yarn spun from silk waste) not put up for retail sale | Free | 301: 25%S122: 10% |
5005 — Yarn spun from silk waste, not put up for retail sale
#Heading 5005 contains 3 HTS lines. General U.S. duty rates: Free. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
5005.00.00
Yarn spun from silk waste, not put up for retail sale
Free
5005.00.00.10
Containing 85 percent or more by weight of silk or silk waste
Free
5005.00.00.90
Other (800)
Free
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 5005.00.00 | Yarn spun from silk waste, not put up for retail sale | Free | 301: 25%S122: 10% |
| 5005.00.00.10 | Containing 85 percent or more by weight of silk or silk waste | Free | 301: 25%S122: 10% |
| 5005.00.00.90 | Other (800) | Free | 301: 25%S122: 10% |
5006 — Silk yarn and yarn spun from silk waste, put up for retail sale; silkworm gut
#Heading 5006 contains 3 HTS lines. General U.S. duty rates: Free. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
5006.00
Silk yarn and yarn spun from silk waste, put up for retail sale; silkworm gut:
Free
5006.00.10.00
Containing 85 percent or more by weight of silk or silk waste
Free
5006.00.90.00
Other (800)
Free
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 5006.00 | Silk yarn and yarn spun from silk waste, put up for retail sale; silkworm gut: | Free | 301: 25%S122: 10% |
| 5006.00.10.00 | Containing 85 percent or more by weight of silk or silk waste | Free | 301: 25%S122: 10% |
| 5006.00.90.00 | Other (800) | Free | 301: 25%S122: 10% |
5007 — Woven fabrics of silk or of silk waste
#Heading 5007 contains 29 HTS lines. General U.S. duty rates: Free–3.9%. Section 301 surcharges (7.5%–100%) and Section 122 surcharge (15%) apply to selected lines.
5007
Woven fabrics of silk or of silk waste:
Free
5007.10
Fabrics of noil silk:
Free
5007.10.30
Containing 85 percent or more by weight of silk or silk waste
0.8%
5007.10.30.20
More than 127 cm in width
Free
5007.10.30.40
Other
Free
5007.10.30.90
Other
Free
5007.10.60
Other
3.9%
5007.10.60.10
Of yarns of different colors (218)
Free
5007.10.60.20
Other (220)
Free
5007.10.60.30
Subject to wool restraints (410)
Free
5007.10.60.90
Other (810)
Free
5007.20.00
Other fabrics, containing 85 percent or more by weight of silk or of silk waste other than noil silk
Free
5007.20.00.15
Measuring less than 77 cm in width or less than 77 cm between selvages, with more than 47 warp yarns per cm, of a kind for use in the manufacture of neckties
Free
5007.20.00.25
More than 127 cm in width
Free
5007.20.00.35
Other
Free
5007.20.00.55
Measuring less than 77 cm in width or less than 77 cm between selvages, with more than 47 warp yarns per cm, of a kind for use in the manufacture of neckties
Free
5007.20.00.65
More than 127 cm in width
Free
5007.20.00.85
Other
Free
5007.20.00.95
Other
Free
5007.90
Other fabrics:
Free
5007.90.30
Containing 85 percent or more by weight of silk or silk waste
0.8%
5007.90.30.20
More than 127 cm in width
Free
5007.90.30.40
Other
Free
5007.90.30.90
Other
Free
5007.90.60
Other
3.9%
5007.90.60.10
Of yarns of different colors (218)
Free
5007.90.60.20
Other (220)
Free
5007.90.60.30
Subject to wool restraints (410)
Free
5007.90.60.90
Other (810)
Free
| HS Code | Description | General Rate | Special Rates |
|---|---|---|---|
| 5007 | Woven fabrics of silk or of silk waste: | Free | 301: 25%S122: 10% |
| 5007.10 | Fabrics of noil silk: | Free | 301: 25%S122: 10% |
| 5007.10.30 | Containing 85 percent or more by weight of silk or silk waste | 0.8% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 5007.10.30.20 | More than 127 cm in width | Free | 301: 25%S122: 10% |
| 5007.10.30.40 | Other | Free | 301: 25%S122: 10% |
| 5007.10.30.90 | Other | Free | 301: 25%S122: 10% |
| 5007.10.60 | Other | 3.9% | 301: 25%S122: 10%hts_special: Free (AU,BH, CL,CO,E*, IL,JO,KR,MA,OM,P,PA, PE,S,SG) |
| 5007.10.60.10 | Of yarns of different colors (218) | Free | 301: 25%S122: 10% |
| 5007.10.60.20 | Other (220) | Free | 301: 25%S122: 10% |
| 5007.10.60.30 | Subject to wool restraints (410) | Free | 301: 25%S122: 10% |
| 5007.10.60.90 | Other (810) | Free | 301: 25%S122: 10% |
| 5007.20.00 | Other fabrics, containing 85 percent or more by weight of silk or of silk waste other than noil silk | Free | 301: 25%S122: 10% |
| 5007.20.00.15 | Measuring less than 77 cm in width or less than 77 cm between selvages, with more than 47 warp yarns per cm, of a kind for use in the manufacture of neckties | Free | 301: 25%S122: 10% |
| 5007.20.00.25 | More than 127 cm in width | Free | 301: 25%S122: 10% |
| 5007.20.00.35 | Other | Free | 301: 25%S122: 10% |
| 5007.20.00.55 | Measuring less than 77 cm in width or less than 77 cm between selvages, with more than 47 warp yarns per cm, of a kind for use in the manufacture of neckties | Free | 301: 25%S122: 10% |
| 5007.20.00.65 | More than 127 cm in width | Free | 301: 25%S122: 10% |
| 5007.20.00.85 | Other | Free | 301: 25%S122: 10% |
| 5007.20.00.95 | Other | Free | 301: 25%S122: 10% |
| 5007.90 | Other fabrics: | Free | 301: 25%S122: 10% |
| 5007.90.30 | Containing 85 percent or more by weight of silk or silk waste | 0.8% | 301: 25%S122: 10%hts_special: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) |
| 5007.90.30.20 | More than 127 cm in width | Free | 301: 25%S122: 10% |
| 5007.90.30.40 | Other | Free | 301: 25%S122: 10% |
| 5007.90.30.90 | Other | Free | 301: 25%S122: 10% |
| 5007.90.60 | Other | 3.9% | 301: 25%S122: 10%hts_special: Free (AU,BH, CL,CO,E*, IL,JO,KR,MA,OM,P,PA, PE,S,SG) |
| 5007.90.60.10 | Of yarns of different colors (218) | Free | 301: 25%S122: 10% |
| 5007.90.60.20 | Other (220) | Free | 301: 25%S122: 10% |
| 5007.90.60.30 | Subject to wool restraints (410) | Free | 301: 25%S122: 10% |
| 5007.90.60.90 | Other (810) | Free | 301: 25%S122: 10% |
Frequently Asked Questions — Chapter 50
Sources & Methodology
- Base HTS rates: U.S. International Trade Commission — Harmonized Tariff Schedule (2025 edition, Chapter 50). “General rate” shows the min–max range across all 10-digit subheadings.
- Section 301 rates: Office of the U.S. Trade Representative — Section 301 action lists. Flags indicate HTS lines listed on USTR China 301 Lists 1–4B.
- Reciprocal tariffs: Based on the post-SCOTUS Section 122 framework (February 2026). See the TariffCenter Tariff Tracker for current program status.
- Verify before importing: U.S. Customs and Border Protection — Rulings Online or consult a licensed customs broker for binding classification rulings.
Glossary
- General rate (MFN rate)
- The base import duty applied to all World Trade Organization members under Most-Favored-Nation treatment. This is the standard rate shown in the General Rate column.
- Section 301 tariff (301: 7.5%–100%)
- An additional surcharge authorized under Section 301 of the Trade Act of 1974, imposed on selected imports from China. Rates vary by product list and category: Lists 1–3 at 25%, List 4A at 7.5%, with four-year review increases up to 100% on strategic sectors (EVs, semiconductors, solar, medical equipment). Applied on top of the MFN base rate.
- Section 122 surcharge (Sec. 122: 15%)
- A 15% global surcharge on all imports enacted under Section 122 authority after the February 2026 SCOTUS ruling struck down IEEPA-based reciprocal tariffs. USMCA-qualifying goods are exempt. Stacked on top of base and Section 301 rates.
- Section 232 tariff (S232)
- Tariffs on qualifying steel, aluminum, copper, and derivative products imposed under Section 232 of the Trade Expansion Act of 1962 on national security grounds. Rates now vary by product bucket and current Chapter 99 treatment.
- hts_special / Special rates
- Preferential duty rates available to imports from countries with Free Trade Agreements or other special trade programs with the U.S. Country codes: AU (Australia), BH (Bahrain), CA (Canada), CL (Chile), CO (Colombia), IL (Israel), JO (Jordan), KR (South Korea), MA (Morocco), MX (Mexico), OM (Oman), PA (Panama), PE (Peru), SG (Singapore). Free (AU,BH...) means duty-free treatment for those partners.