改性丙烯酸短纤维
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 5516930090 | 43.5% | CN | US | Official Doc |
| 5509620000 | 47.0% | CN | US | Official Doc |
| 5509610000 | 48.2% | CN | US | Official Doc |
| 5503300000 | 39.3% | CN | US | Official Doc |
| 5503909000 | 39.3% | CN | US | Official Doc |
Product Images
AI Analysis
🧵 Modified Acrylic Staple Fibers (改性丙烯酸短纤维)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Strategy
📌 I. Product Definition & Classification: Understanding "Modified Acrylic"
Modified Acrylic Staple Fibers are synthetic textile materials derived from acrylic polymers (polyacrylonitrile-based) that have undergone chemical or physical modification to enhance properties such as dyeability, softness, or moisture absorption. In international trade, the classification hinges on two critical factors: 1. Material Composition: Is it "Modacrylic" (modified acrylonitrile copolymer) or "Standard Acrylic" with additives? 2. Physical Form: These are staple fibers (short fibers, not continuous filaments), typically sold in bales for spinning into yarn.
⚠️ Critical Distinction Point:
- If the polymer is primarily acrylonitrile but modified with other monomers (e.g., vinyl chloride, vinyl acetate) to change properties → It is classified as Modacrylic (Heading 5503 or 5509 depending on mix).
- If it is pure acrylic but merely "surface-treated" without changing the polymer class → It may fall under 5516 (Articles of Acrylic Fibers) or 5503 (Synthetic Staple Fibers).
- Short Fiber (Staple) vs. Filament: This product is explicitly "staple," ruling out heading 54 (Filament) or 60/61 (Fabrics/Knitwear).
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Match)
Based on the provided data context, here are the 5 most relevant HS Codes, ranked by suitability and tax impact.
| HS Code | Product Description & Summary | Key Classification Logic | Total Tax Rate |
|---|---|---|---|
5503.30.00.00 |
Modified Acrylic (Modacrylic) Staple Fibers | "Modified acrylic" corresponds to Modacrylic (a copolymer modified with other monomers). "Staple" matches the short fiber form. This is the most precise match for chemically modified acrylics. | 39.3% |
5503.90.90.00 |
Other Synthetic Staple Fibers | Acrylic is a synthetic fiber. If not specifically "Modacrylic" (5503.30) or "Acrylic" (5503.10/20), it falls under "Other." Applies the "catch-all" principle for synthetic staples. | 39.3% |
5516.93.00.90 |
Acrylic Staple Fibers (Blended/Other) | If classified as standard Acrylic (not Modacrylic), it falls under Heading 5516. "93" implies other acrylic fibers. Summary matches "Acrylic belongs to artificial fibers." | 43.5% |
5509.62.00.00 |
Modacrylic/Yarn Blends | If the product is already in the form of yarn or mixed with other short fibers/synthetics in a specific ratio defined by subheading 62. Summary: "Mod-acrylic + short fiber/yarn form matches core classification." | 47.0% |
5509.61.00.00 |
Modacrylic/Wool Blends | Specific blend classification: Mod-acrylic mixed with wool or fine animal hair. Summary: "Mod-acrylic + short fiber matches blending characteristics with wool." | 48.2% |
🔍 Priority Recommendation:
- For pure modified acrylic staple fibers (spinning stock),5503.30.00.00is the strongest technical match, offering the lowest tax (39.3%).
- Avoid5509codes unless the goods are already yarn or pre-blended with wool/synthetics in a specific manufactured form.
- Avoid5516if the fiber is chemically "modified" (Modacrylic), as Heading 5503 is more specific for copolymers.
💰 III. 2026 Latest Tariff Rate Breakdown (Including Surtaxes & Policy Add-ons)
✅ Applicable Country: United States (US)
✅ Country of Origin: China (CN)
✅ Effective Date: From November 10, 2025 (and subsequent imports)
🎯 1. 5503.30.00.00 —— Modacrylic Staple Fibers (Recommended)
| Item | Details |
|---|---|
| Base Tariff | 4.3% (ad valorem) |
| Section 301 Surtax | +25.0% (USITC Footnote 9903.88.01 equivalent for Textiles/Fibers) |
| IEEPA Add-on | +10.0% (Against Chinese/HK products, effective Nov 10, 2025) |
| Total Effective Rate | 39.3% |
| Tax Calculation | CIF Value × 39.3% |
| De Minimis Eligibility | ❌ NO (Deny de_minimis; high risk for small parcels) |
| Legal Basis Path | IEEPA:9903.01.25 → USITC:5503.30.00.00 → FOOTNOTE:301 Textiles |
📌 Explanation:
- Base 4.3%: Standard MFN rate for synthetic staple fibers.
- 25% Surtax: Section 301 tariff on Chinese textiles/fibers.
- 10% IEEPA: Additional penalty tariff under the International Emergency Economic Powers Act.
- Total 39.3%: High barrier. Must be factored into landed cost calculations.
🎯 2. 5503.90.90.00 —— Other Synthetic Staple Fibers (Fallback)
| Item | Details |
|---|---|
| Base Tariff | 4.3% |
| Section 301 Surtax | +25.0% |
| IEEPA Add-on | +10.0% |
| Total Effective Rate | 39.3% |
| Tax Calculation | CIF Value × 39.3% |
| Legal Basis | Same as above, different subheading. |
📌 Note: Identical tax burden to
5503.30. Choice depends on accurate chemical definition.
🎯 3. 5516.93.00.90 —— Acrylic Staple Fibers (Non-Modacrylic)
| Item | Details |
|---|---|
| Base Tariff | 8.5% |
| Section 301 Surtax | +25.0% |
| IEEPA Add-on | +10.0% |
| Total Effective Rate | 43.5% |
| Tax Calculation | CIF Value × 43.5% |
📌 Warning: Higher base rate (8.5% vs 4.3%). Only use if the fiber is NOT chemically modified (i.e., pure acrylic homopolymer).
🎯 4. 5509.62.00.00 & 5509.61.00.00 —— Blended Yarns/Products
| Item | Details |
|---|---|
| Base Tariff | 12.0% / 13.2% |
| Section 301 Surtax | +25.0% |
| IEEPA Add-on | +10.0% |
| Total Effective Rate | 47.0% / 48.2% |
| Tax Calculation | CIF Value × (47-48.2)% |
📌 Critical: Do NOT use these codes for raw staple fibers. These are for yarns or mixed fabrics. Misclassification leads to severe penalties and back-taxes.
🛠️ IV. Customs Clearance Practical Advice (Real-World Pitfall Guide)
✅ 1. Document Checklist (Non-Negotiable)
| Document | Required? | Purpose |
|---|---|---|
| ✅ Product Specification Sheet | ✔️ | Must specify: Polymer Type (Acrylic vs. Modacrylic), Fiber Length (Staple), Denier, Color |
| ✅ Chemical Composition Report | ✔️ | Certificate of Analysis (COA) proving if it is "Modified" (Modacrylic) or "Pure Acrylic" |
| ✅ Product Photos | ✔️ | Show bales, fiber texture, and packaging labels |
| ✅ Commercial Invoice | ✔️ | Must clearly state "Staple Fiber" NOT "Yarn" or "Fabric" |
| ✅ Country of Origin Cert | ✔️ | To confirm CN origin for IEEPA/301 application |
✅ 2. Declaration Tips (Key Mnemonics)
🔥 "Chemistry Defines Code, Form Defines Heading!"
| Scenario | Correct Declaration | Error to Avoid |
|---|---|---|
| Pure Acrylic Short Fiber | 5516.93.00.90 (43.5%) |
Don't call it "Modacrylic" → Avoids 5503? No, 5516 is less favorable base rate. |
| Modified Acrylic (Modacrylic) Staple | 5503.30.00.00 (39.3%) |
Best Value. Ensure COA says "Modacrylic Copolymer." |
| Acrylic Yarn | 5509.xx.xx |
DO NOT declare as Staple Fiber → Will be rejected/audited. |
| Acrylic Fabric | Chapter 55/60 | DO NOT declare as Staple Fiber → Major misclassification. |
✅ 3. Special Handling
| Situation | Recommendation |
|---|---|
| OEM Custom Fiber | Provide customer order + technical datasheet to prove "Modified" status for 5503.30. |
| Blended Bales (e.g., Acrylic/Cotton) | If mixed in fiber form before spinning, check if it's still "Staple." If yes, may still be 5503/5516. If woven/knitted, move to Chapter 55/60. |
| Small Parcels (De Minimis) | ❌ Avoid. 39.3-48.2% tax applies. No $800 exemption for CN-origin textiles. |
🌍 V. Global Market Clearance Comparison (2026)
| Country/Region | Recommended HS Code | Estimated Total Tax | Key Certification | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 5503.30.00.00 |
39.3% | None specific | High tax due to Section 301 + IEEPA. |
| 🇨🇳 China | 5503.30.00.00 |
~5-9% | No special | Low tax. Import duty + VAT. |
| 🇪🇺 EU | 5503.30.00.00 |
~4.5-6.5% | REACH (Chemicals) | No major surtaxes, but REACH compliance is strict. |
| 🇬🇧 UK | 5503.30.00.00 |
~6.5% | UKCA (if applicable) | Post-Brexit rules apply. |
| 🇯🇵 Japan | 5503.30.00.00 |
~5-7% | FSC (if treated) | Competitive market. |
📌 Conclusion:
- USA is the most expensive market due to layered surtaxes (25% + 10%).
- EU/UK/Japan are more cost-effective, but require strict chemical compliance (REACH).
- Strategy: For US imports, ensure accurate "Modacrylic" classification to save 4-9% vs. "Other" or "Yarn" misclassifications.
📌 VI. Common Errors & Pitfalls (Lessons Learned)
❌ Error 1: Calling "Modacrylic" simply "Acrylic"
👉 Consequence: May be misclassified under 5516 (43.5%) instead of 5503.30 (39.3%). Loss of 4.2% savings.
❌ Error 2: Declaring "Staple Fiber" when it is "Yarn"
👉 Consequence: Customs will reclassify to 5509 (47-48.2%). Additional 8-9% tax + penalties.
❌ Error 3: Ignoring "Modified" Status
👉 Consequence: If "Modified" (copolymer), it MUST be 5503. If declared as 5516 (homopolymer), it invites audit for correct chemical identity.
❌ Error 4: Assuming De Minimis Exemption for Small Bales
👉 Consequence: No exemption for CN-origin textiles in the US under current rules. Full tax applies.
✅ Correct Declaration Example:
"Synthetic Staple Fibers, Modacrylic (Modified Acrylic Copolymer), Cut to Length, Not Yet Spun into Yarn, Model XYZ, REACH Compliant"
🎯 VII. Conclusion: Precision Saves Money!
🎯 Remember the Mnemonic:
🔹 "Modacrylic is 5503, Pure Acrylic is 5516. Fiber not Yarn, Don't pay 48%. USA tax is high, 39% is the goal!"
🔹 "Chemical proof is key, to avoid audit fees. Staple form matters, don't confuse with yarns."
📌 Pro Tip:
If your product is 100% Modacrylic, insist on 5503.30.00.00. Provide a Certificate of Analysis to Customs to justify the "Modified" status. This is the most cost-effective and legally sound path for Chinese-origin modified acrylic staples entering the US.
📣 Immediate Action:
📞 Consult a licensed customs broker to verify your COA (Certificate of Analysis).
🚀 Ensure your invoice describes the goods as "Staple Fiber" and "Modacrylic" to qualify for the 39.3% rate.
✨ Professional clearance starts with accurate classification!
💼 Every percentage point counts in global trade!
Customer Reviews
About HS Code Classification
The Harmonized System (HS) is an internationally standardized nomenclature developed by the World Customs Organization (WCO) to classify traded products. Over 200 countries use the HS system as the basis for customs tariffs, trade statistics, and import/export regulations.
Each HS code follows a hierarchical structure:
- Chapter (2 digits) — Broad category of goods (e.g., Chapter 84: Machinery and Mechanical Appliances)
- Heading (4 digits) — More specific grouping within the chapter
- Subheading (6 digits) — Internationally standardized breakdown, used by all WCO member countries
- National subdivisions (8-10 digits) — Country-specific extensions for further classification, such as US HTSUS 10-digit codes
Correct HS code classification is essential for smooth customs clearance, accurate duty payment, and compliance with trade regulations. Misclassification can lead to customs delays, overpayment of duties, or penalties.
When importing from CN to US, the applicable tariff rates may include:
- Most-Favored-Nation (MFN) rate — The standard duty rate applied to WTO members
- General rate — Applied to countries without trade agreements
- Trade remedy duties — Additional tariffs such as Section 301 (anti-dumping), Section 232 (national security), or countervailing duties
The information provided on this page is for reference purposes only. For official classification, please consult with your local customs authority or a licensed customs broker.