硅胶原材料
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3926909989 | 22.8% | CN | US | Official Doc |
| 7202215000 | 36.5% | CN | US | Official Doc |
| 7202217500 | 36.9% | CN | US | Official Doc |
AI Analysis
🧪 Silicone Raw Materials: HS Code Classification & Customs Clearance Strategy (2026 Update)
🌐 HS Code Reference & Customs Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
📌 I. Product Definition & Classification: What are "Silicone Raw Materials"?
In international trade, "Silicone Raw Materials" is a broad term that can refer to different chemical states. The key to correct classification lies in distinguishing between finished silicone products (silicone rubber items) and primary metallurgical/chemical raw materials (silicon alloys).
1. Silicone Rubber Products (Finished/Semi-finished)
Refers to processed silicone rubber items. If the material is already shaped into products (seals, tubes, medical devices, etc.), it is classified under Chapter 39 (Plastics).
- Key Indicator: The item is a "silicone product" made of silicone rubber.
- Classification Logic: Classified under "Other articles of plastics" as a catch-all category.
2. Silicon Alloy Raw Materials (Primary Form)
Refers to industrial silicon-iron alloys (Silico-iron), specifically Ferrosilicon. This is a primary raw material used in steelmaking and metallurgy, not a consumer plastic product.
- Key Indicator: The material is a metal alloy in primary form (lumps, powder, granules).
- Classification Logic: Classified under Chapter 72 (Iron and Steel) under the subheading for Ferrosilicon.
⚠️ Critical Distinction:
- If it is Silicone Rubber (polymer) → Go to HS 3926.
- If it is Ferrosilicon (metal alloy) → Go to HS 7202.
Do not confuse "Silicone" (the polymer) with "Silicon" (the element in alloys).
📦 II. HS Code Classification Details (2026 Latest Tariff Authority)
Based on the provided data, here are the specific HS Codes and their corresponding tax implications.
1. For Silicone Rubber Products (Polymers)
| HS Code | Product Description | Application Scenario | Material State |
|---|---|---|---|
3926.90.99.89 |
Other plastic articles, not specified elsewhere | Silicone rubber products (e.g., seals, mats, medical devices) | Processed Silicone Rubber |
🔍 Explanation:
- This code is a "catch-all" for silicone products that do not fit into more specific plastic categories.
- It assumes the material is silicone rubber (a type of plastic/polymer).
2. For Ferrosilicon Raw Materials (Metal Alloys)
| HS Code | Product Description | Application Scenario | Silicon Content/State |
|---|---|---|---|
7202.21.50.00 |
Ferrosilicon in primary form | Raw material for steelmaking, matching silicon iron material | Primary Form |
7202.21.75.00 |
Ferrosilicon in primary form | Specific silicon content range, primary alloy state | Specific Si Range |
🔍 Explanation:
- These codes apply to Ferrosilicon (FeSi), a metal alloy.
- The difference between.50.00and.75.00usually depends on the silicon content percentage or specific metallurgical specifications defined in the tariff schedule.
💰 III. 2026 Latest Tariff Rate Breakdown (Including Surtaxes)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: Current rates including 301 and 122 Section surcharges
🎯 1. 3926.90.99.89 – Silicone Rubber Products
| Item | Content |
|---|---|
| Base Tariff | 5.3% |
| Section 301 Surtax | 7.5% |
| Section 122 Tariff | 10% |
| Total Tax Rate | 22.8% |
| Tax Calculation | CIF Value × 22.8% |
| De Minimis Exemption | ❌ Not Eligible (High risk for low-value shipments) |
| Legal Basis Path | USITC:3926.90.99.89 → Section 301 Footnote → Section 122 |
📌 Analysis:
- The total tax burden is 22.8%.
- Unlike some tech goods with 25%+ surtaxes, silicone rubber products face a moderate combined rate.
- However, if misclassified as a raw chemical or exempt good, penalties apply.
🎯 2. 7202.21.50.00 – Ferrosilicon (Primary Form)
| Item | Content |
|---|---|
| Base Tariff | 1.5% |
| Section 301 Surtax | 25.0% |
| Section 122 Tariff | 10% |
| Total Tax Rate | 36.5% |
| Tax Calculation | CIF Value × 36.5% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Basis Path | USITC:7202.21.50.00 → Section 301 Footnote 9903.88.01 → Section 122 |
📌 Analysis:
- The total tax burden is 36.5%, which is high.
- The 25% Section 301 surtax is the dominant cost driver.
- Ferrosilicon is heavily regulated due to its strategic importance in steel production.
🎯 3. 7202.21.75.00 – Ferrosilicon (Specific Si Content)
| Item | Content |
|---|---|
| Base Tariff | 1.9% |
| Section 301 Surtax | 25.0% |
| Section 122 Tariff | 10% |
| Total Tax Rate | 36.9% |
| Tax Calculation | CIF Value × 36.9% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Basis Path | USITC:7202.21.75.00 → Section 301 Footnote 9903.88.01 → Section 122 |
📌 Analysis:
- The total tax burden is 36.9%, slightly higher than the previous code due to a higher base tariff (1.9% vs 1.5%).
- This code applies to specific silicon-iron alloys with different compositional standards.
🛠️ IV. Customs Clearance Practical Advice (Avoid Pitfalls)
✅ 1. Preparation Checklist (Essential Documents)
| Document | Mandatory? | Description |
|---|---|---|
| ✅ Product Specification Sheet | ✔️ | Must clearly state: Material Type (Silicone Rubber vs. Ferrosilicon), Composition, Shape (Powder, Lump, Molded). |
| ✅ Material Safety Data Sheet (MSDS) | ✔️ | Critical for chemical/silicone products to prove non-hazardous status. |
| ✅ Commercial Invoice | ✔️ | Must explicitly state: "Silicone Rubber Product" or "Ferrosilicon Alloy". Do not use vague terms like "Silicone Raw Material". |
| ✅ Certificate of Origin (CO) | ✔️ | To verify Chinese origin for surtax calculations. |
| ✅ Photos of Goods | ✔️ | Show packaging, labeling, and physical state (e.g., powder vs. molded part). |
✅ 2. Declaration Tips (Key Mantras)
🔥 "Material Type First, Then Form. Silicone Rubber ≠ Ferrosilicon!"
| Scenario | Correct Declaration | Wrong Practice |
|---|---|---|
| Silicone Seals/Rubber Parts | 3926.90.99.89 – "Silicone Rubber Product" |
Misdeclaring as "Plastic Part" without specifying silicone → Risk of audit. |
| Ferrosilicon Powder/Lumps | 7202.21.50.00 or 7202.21.75.00 – "Ferrosilicon Alloy" |
Misdeclaring as "Chemical Raw Material" → 36.5% tax applies anyway, but description must match. |
| Silicone Gel/Liquid | Check if it's a pre-mixed compound or raw polymer. If raw polymer, may be Chapter 39. If alloy, Chapter 72. | Confusing liquid silicone with metal slag → Major misclassification. |
✅ 3. Special Circumstances
| Situation | Handling Advice |
|---|---|
| Mixed Shipment | If packing both silicone rubber parts and ferrosilicon, declare separately. Do not combine into one line item. |
| Unknown Silicon Content | For ferrosilicon, get a lab test report for silicon percentage. This determines whether to use .50.00 or .75.00. |
| Silicone vs. Silica | Ensure the HS code is not confused with Silica (Sand/Silica Gel, HS 2811) or Silicon Metal (HS 2804). Silicone Rubber is plastic (39); Ferrosilicon is iron alloy (72). |
🌍 V. Global Market Comparison (2026)
| Country/Region | Recommended HS Code | Tariff (China Origin) | Certification | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 3926.90.99.89 or 7202.21.xx.xx |
22.8% (Rubber) / 36.5-36.9% (Ferrosilicon) | FDA (if medical), MSDS | High Surtaxes Apply |
| 🇨🇳 China | 3926.90.99.89 or 7202.21.xx.xx |
Low/Zero (Import) | CCC (if applicable) | No surtaxes |
| 🇪🇺 EU | 3926.90.99 or 7202.21 |
Varies (0-6.5%) | REACH, SDS | No Section 122/301 |
| 🇬🇧 UK | 3926.90.99 or 7202.21 |
Varies (0-6.5%) | UKCA, SDS | Post-Brexit rules apply |
📌 Conclusion:
- USA is the most expensive market for these goods due to Section 301 and Section 122 tariffs.
- Ferrosilicon faces a much higher tax burden (~37%) than Silicone Rubber Products (~23%).
- Accurate material identification is crucial to avoid overpaying or facing penalties.
📌 VI. Common Errors & Pitfalls (Lessons Learned)
❌ Error 1: Calling Ferrosilicon "Silicone Rubber"
👉 Consequence: HS Code mismatch, potential customs seizure, or incorrect tax calculation.
❌ Error 2: Misidentifying Silicon Content for Ferrosilicon
👉 Consequence: Using the wrong sub-code (.50.00 vs .75.00) may lead to discrepancies in duty paid.
❌ Error 3: Ignoring Section 122 Tariffs
👉 Consequence: Failing to include the 10% Section 122 surtax in cost calculations leads to underpayment and audits.
✅ Correct Approach:
"Ferrosilicon Alloy, 75% Silicon Content, in Lumps, for Steelmaking"
vs.
"Silicone Rubber Seal, Medical Grade, Cured, Molded"
🎯 VII. Conclusion: Precise Classification Saves Money
🎯 Remember the Mantra:
🔹 "Rubber = 39 (22.8%), Alloy = 72 (36.5%+)"
🔹 "Check Silicon Content for Alloy, Check Shape for Rubber"
🔹 "Don't Mix Materials, Separate Declarations are Key"
📌 Pro Tip:
If you are importing Ferrosilicon, consider the total landed cost including the 36.9% tax. If you are importing Silicone Products, ensure your MSDS and FDA compliance (if applicable) are ready to avoid delays.
📣 Immediate Action:
📞 Consult with a licensed customs broker.
📋 Provide detailed material composition reports.
🚀 Accurate HS Code = Lower Risk, Faster Clearance, Accurate Costs.
✨ Professional Customs Clearance Starts with Precise Classification!
💼 Every cent in tariff cost matters!
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.