延长器
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 8536509033 | 35.0% | CN | US | Official Doc |
| 8537109170 | 37.7% | CN | US | Official Doc |
| 8536509031 | 35.0% | CN | US | Official Doc |
| 8537108000 | 35.0% | CN | US | Official Doc |
| 8517620020 | 35.0% | CN | US | Official Doc |
AI Analysis
🔌 Extenders (Signal & Cable Extenders)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
📌 I. Product Definition & Classification: Do You Truly Understand "Extenders"?
Extenders are critical components in modern data transmission and industrial control systems. In international trade, they are not a single homogeneous category but are strictly divided based on their functional purpose (Button/Control vs. Network/Data Transmission) and technical attributes. Misclassification here leads to significant tariff discrepancies and customs delays.
Button Extenders (Control Components): Physical devices used to extend the reach of push-buttons, switches, or control panel interfaces. These are auxiliary components for electrical control equipment.
Network Cable Extenders (Data Transmission Devices): Electronic devices that amplify, convert, or extend network signals (Ethernet, HDMI, USB, etc.). These are classified under communication equipment or data transmission apparatus.
⚠️ Key Distinction Point:
- If the device is primarily for manual control (buttons, switches, panels) → It falls under Chapter 85 (Electrical Machinery) – Control/Distribution Boards (e.g., 8536/8537).
- If the device is for data/signal transmission (Network, Ethernet, HDMI) → It falls under Chapter 85 – Telecommunication/Transmission Equipment (e.g., 8517).
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
Based on the provided data, "Extenders" are classified into five specific HS Codes depending on the exact nature of the extension.
| HS Code | Product Description | Application Scenario | Key Attribute |
|---|---|---|---|
8536.50.90.31 |
Button Extender | Push-button switches, control knobs, physical interface extensions | Component of Switches |
8537.10.91.70 |
Button Extender | Auxiliary component for voltage control/distribution boards, control panels | Auxiliary Control Component |
8537.10.80.00 |
Button Extender | Parts/accessories for control panels, electro-control equipment attachments | Panel Accessory |
8517.62.00.20 |
Network Cable Extender | Signal transmission links for switches/routers, auxiliary transmission chains | Network Transmission Device |
8517.62.00.90 |
Network Cable Extender | Data transmission devices (metal/plastic), other miscellaneous transmission apparatus | General Data Transmission |
🔍 Critical Reminder:
- Button Extenders are generally treated as parts/accessories of electrical control devices (Chapters 8536/8537).
- Network Extenders are treated as apparatus for transmission (Chapter 8517).
- Do not mix these categories. A "USB Extender" is NOT a "Button Extender," and a "Power Button Extender" is NOT a "Network Extender."
💰 III. 2026 Latest Tariff Rate Breakdown (Including Surtaxes & Policy Add-ons)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Time: As per current trade policies (Section 301 & IEEPA)
🎯 1. 8536.50.90.31 —— Button Extender (Switch Component)
| Item | Content |
|---|---|
| Base Tariff | 0.0% |
| Section 301 Surtax | +25.0% |
| IEEPA Add-on (122 Clause) | +10.0% |
| Total Rate | 35.0% |
| Calculation Method | CIF Value × 35% |
| De Minimis Exemption | ❌ Not Eligible (Deny de minimis) |
| Legal Basis Path | USITC:8536.50.90.31 → Section 301: 25% → IEEPA: 10% |
📌 Explanation:
- This code classifies the extender as a part of a button switch.
- Although the base duty is 0%, the 35% total burden is heavy.
- It is subject to both the standard Section 301 tariffs and the additional IEEPA tariffs.
🎯 2. 8537.10.91.70 —— Button Extender (Control Board Auxiliary)
| Item | Content |
|---|---|
| Base Tariff | 2.7% |
| Section 301 Surtax | +25.0% |
| IEEPA Add-on (122 Clause) | +10.0% |
| Total Rate | 37.7% |
| Calculation Method | CIF Value × 37.7% |
| De Minimis Exemption | ❌ Not Eligible (Deny de minimis) |
| Legal Basis Path | USITC:8537.10.91.70 → Section 301: 25% → IEEPA: 10% |
📌 Explanation:
- This code is slightly higher than the switch component because it has a base duty of 2.7%.
- It is classified as an auxiliary component for voltage control or distribution equipment.
- Cost Impact: This is the most expensive classification among the button extenders. Avoid this if possible.
🎯 3. 8537.10.80.00 —— Button Extender (Panel Part/Accessory)
| Item | Content |
|---|---|
| Base Tariff | 0.0% |
| Section 301 Surtax | +25.0% |
| IEEPA Add-on (122 Clause) | +10.0% |
| Total Rate | 35.0% |
| Calculation Method | CIF Value × 35% |
| De Minimis Exemption | ❌ Not Eligible (Deny de minimis) |
| Legal Basis Path | USITC:8537.10.80.00 → Section 301: 25% → IEEPA: 10% |
📌 Explanation:
- Similar to8536.50.90.31, this has a 0% base duty.
- It is viewed as a part/accessory of a control panel rather than a switch component.
- Optimization Tip: If you can argue your product is a "panel accessory" rather than a "control board auxiliary component," you save 2.7% on the base rate.
🎯 4. 8517.62.00.20 —— Network Cable Extender (Transmission Chain)
| Item | Content |
|---|---|
| Base Tariff | 0.0% |
| Section 301 Surtax | +25.0% |
| IEEPA Add-on (122 Clause) | +10.0% |
| Total Rate | 35.0% |
| Calculation Method | CIF Value × 35% |
| De Minimis Exemption | ❌ Not Eligible (Deny de minimis) |
| Legal Basis Path | USITC:8517.62.00.20 → Section 301: 25% → IEEPA: 10% |
📌 Explanation:
- Classified as an "auxiliary transmission link device" for switches and routers.
- Despite being a network device, it carries the same 35% total tax burden as the button extenders (with 0% base).
🎯 5. 8517.62.00.90 —— Network Cable Extender (Other)
| Item | Content |
|---|---|
| Base Tariff | 0.0% |
| Section 301 Surtax | +25.0% |
| IEEPA Add-on (122 Clause) | +10.0% |
| Total Rate | 35.0% |
| Calculation Method | CIF Value × 35% |
| De Minimis Exemption | ❌ Not Eligible (Deny de minimis) |
| Legal Basis Path | USITC:8517.62.00.90 → Section 301: 25% → IEEPA: 10% |
📌 Explanation:
- This is a "catch-all" for other data transmission devices (metal/plastic construction).
- Same tariff structure as the specific network extender.
- Use this when the device does not fit neatly into the "switch/router auxiliary" description.
🛠️ IV. Customs Clearance Practical Advice (Real-World Pitfall Guide)
✅ 1. Required Documentation Checklist
| Document | Mandatory? | Notes |
|---|---|---|
| ✅ Product Specifications | ✔️ | Must clearly state: "Button Extender" OR "Network Cable Extender." Do NOT use generic terms like "Adapter." |
| ✅ Functional Diagram | ✔️ | Show how it connects. Is it between a button and a PLC? Or between two network ports? |
| ✅ Product Photos | ✔️ | Clear images of labels, ports, and internal components (if possible). |
| ✅ Commercial Invoice | ✔️ | Item description must match HS Code intent exactly. |
| ✅ Country of Origin | ✔️ | Required for Section 301/IEEPA application. |
✅ 2. Declaration Strategy (Key Mnemonics)
🔥 "Function Determines Code, Code Determines Cost!"
| Scenario | Correct HS Code | Reasoning | Risk if Wrong |
|---|---|---|---|
| Physical Button Extension | 8536.50.90.31 or 8537.10.80.00 |
It’s a switch/panel part. | Misclassifying as network gear may trigger security reviews. |
| Control Panel Auxiliary | 8537.10.91.70 |
Connects to voltage/control boards. | Higher base duty (2.7%) increases cost unnecessarily if 8537.10.80.00 is viable. |
| Network/Ethernet Extender | 8517.62.00.20 or 8517.62.00.90 |
It transmits data/signals. | Must prove it’s for "transmission," not just "connection." |
✅ 3. Special Handling Tips
| Situation | Recommendation |
|---|---|
| Dual-Function Devices | If a device does BOTH (e.g., a button that sends network signals), prioritize the primary function. Usually, "Transmission" (8517) or "Control" (8536/37) needs to be dominant based on design. |
| Packaging | If sold as a kit (e.g., Extender + Cable + Power Adapter), declare the whole kit under the HS Code of the main extender. Do not split. |
| Material Declaration | For 8517.62.00.90, explicitly mention materials (Metal/Plastic) if asked, as it fits the "no material conflict" summary. |
🌍 V. Global Market Comparison (2026 Update)
| Market | Typical HS Code | Base Duty | Surtaxes (China) | Total Est. | Notes |
|---|---|---|---|---|---|
| 🇺🇸 USA | 8536/8537/8517 |
0% - 2.7% | +25% + 10% | 35% - 37.7% | High compliance risk. Strict Section 301 enforcement. |
| 🇨🇳 China | 8536/8537/8517 |
0% - 6% | None | Low | Domestic production or imports from FTAs benefit. |
| 🇪🇺 EU | 8536/8537/8517 |
0% - 3% | None (WTO MFN) | Low | No Section 301 equivalent. Check for anti-dumping if applicable. |
| 🇬🇧 UK | 8536/8537/8517 |
0% - 3% | None | Low | Post-Brexit rules apply, but generally favorable for electronics. |
📌 Conclusion:
- USA is the only major market imposing these specific surtaxes.
- Total tariff of 35%-37.7% is significant. Profit margins must account for this.
- Consider supply chain diversification (e.g., assembly in Vietnam/Mexico) if possible, but ensure substantial transformation occurs.
📌 VI. Common Errors & Pitfalls (Lessons Learned)
❌ Error 1: Calling a "Network Extender" a "Button Extender"
👉 Consequence: Customs may reject the declaration for misclassification, causing delays. The HS Codes are functionally distinct.
❌ Error 2: Ignoring the Base Duty Difference (8537.10.91.70 vs 8537.10.80.00)
👉 Consequence: Paying an extra 2.7% on the CIF value unnecessarily.
👉 Fix: If your product is a panel accessory, use 8537.10.80.00 (0% base). Only use 8537.10.91.70 if it strictly interfaces with voltage control boards.
❌ Error 3: Assuming "De Minimis" Exemption
👉 Consequence: Section 301 and IEEPA tariffs DO NOT apply to de minimis exemptions. Even small packages from China will be taxed 35-37.7%.
✅ Correct Declaration Example:
"Network Cable Extender, Ethernet Type, Model XYZ, For Data Transmission, Plastic/Metal Housing" → 8517.62.00.20/90
"Button Extender Component, For Industrial Control Panel, Switch Accessory" → 8536.50.90.31 or 8537.10.80.00
🎯 VII. Conclusion: Precise Classification Saves Money!
🎯 Remember This Mantra:
🔹 "Network = 8517, Button = 8536/37."
🔹 "Check Base Duty: 0% vs 2.7% can save you thousands."
🔹 "USA Tariff = 35-37.7%. No De Minimis. Plan accordingly."
📌 Pro Tip:
If your product is borderline between 8537.10.91.70 (2.7% base) and 8537.10.80.00 (0% base), provide detailed technical drawings to Customs Brokers to argue for the "Panel Accessory" classification. This small effort can save 2.7% on every shipment.
📣 Take Action Now:
📞 Consult a licensed customs broker.
📄 Prepare technical datasheets highlighting primary function.
💰 Calculate landed cost with 35-37.7% tariff included.
🚀 Accurate HS Code = Predictable Cost + Smooth Clearance.
✨ Professional Customs Clearance Starts with Precision!
💼 Every Percent Saved is Pure Profit!
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.