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Backing Board

CN → US
HS编码 关税税率 原产国 目的国 文档
4823908620 35.0% CN US 官方文档
8504909634 35.0% CN US 官方文档
3926305000 22.8% CN US 官方文档
8504909638 35.0% CN US 官方文档
4421999880 38.3% CN US 官方文档

商品图片

AI分析

🛠️ Backing Board: HS Code Classification & 2026 US Customs Clearance Guide


🌐 HS Code Reference & Clearance Strategy | 2026 Latest Tariff Analysis | Professional Compliance Protocol
📌 I. Product Definition & Classification: What Exactly is a "Backing Board"?

A Backing Board is a structural or supporting component used in various industries, including electrical equipment (transformers), furniture, and construction. In international trade, its classification depends heavily on its material, specific function, and intended end-use.

The data provided suggests four primary potential classifications based on different material/logical interpretations:

  1. As a Structural Plate (Metal/General): Viewed as a "plate-like" component.
  2. As a Transformer Part: Viewed as a structural support similar to laminated core parts.
  3. As a Plastic Component: Viewed as a generic plastic part if no specific material conflict exists.
  4. As a Wooden Component: Viewed as a generic "other wooden article" if made of wood.

⚠️ Key Distinction Point:
- If it is a structural support for electrical equipment (like transformers) → Prioritize 8504.
- If it is a generic plastic plate → Prioritize 3926.
- If it is a generic wooden plate → Prioritize 4421.
- If it is a generic metal/other plate → Prioritize 4823.


📦 II. HS Code Classification Details (2026 Latest Tariff Authority)

Based on the provided data, here are the specific HS Codes and the logical reasoning for each:

HS Code Product Description Classification Logic Material/Type Assumption
4823.90.86.20 Other plates, sheets, film, paper, etc. Component Rule: "Backing Board" is plate-shaped. Treated as a general component/part. Default inclination match. Paper/Cardboard or Generic Plate
8504.90.96.34 Parts of electric transformers Special Part Rule: Structural support part. No conflict with laminated core parts. Matches logic for transformer components. Metal/Insulating Material (Transformer Context)
3926.30.50.00 Other articles of plastics 兜底 (Catch-all) Rule: Inferred as plastic material due to lack of material conflict. Classified as other plastic articles. Plastic
8504.90.96.38 Other parts of transformers Part Category Match: Structural/Supporting component. Fits the logic of "parts" for transformers. Metal/Insulating Material (Transformer Context)
4421.99.98.80 Other wooden articles Naming Rule: If the name includes "Buckle/Fastener" (扣), it falls under spare parts/components. Matches "other wooden articles" catch-all. Wood

🔍 Key Takeaway:
- Transformer Parts (8504) are the most likely correct classification if the board is specifically designed for electrical transformers.
- Plastic (3926) is a strong alternative if the material is plastic and no specific transformer function is proven.
- Wood (4421) applies only if the material is definitively wood.


💰 III. 2026 Latest Tariff Rate Breakdown (Including Surtaxes & Policy Add-ons)

Applicable Country: United States (US)
Origin: China (CN)
Effective Date: November 10, 2025 onwards (including subsequent imports)

🎯 1. 4823.90.86.20 – Other Plates/Sheets (Paper/Generic)

Item Content
Base Tariff 0.0%
Section 301 Surcharge +25.0%
122 Clause Tariff +10.0%
Total Rate 35.0%
Calculation CIF Value × 35%
De Minimis Exemption Not Available (deny_de_minimis)
Legal Basis Section 301 → 122 Clause

📌 Explanation:
- Base 0%: Many paper/plate products have low base tariffs.
- 25% Section 301: Standard US trade war tariff on Chinese goods.
- 10% 122 Clause: Additional tariff under specific US trade clauses targeting Chinese imports.
- Total 35%: Significant cost impact. Must be factored into pricing.


🎯 2. 8504.90.96.34 & 8504.90.96.38 – Parts of Electric Transformers

Item Content
Base Tariff 0.0%
Section 301 Surcharge +25.0%
122 Clause Tariff +10.0%
Total Rate 35.0%
Calculation CIF Value × 35%
De Minimis Exemption Not Available (deny_de_minimis)
Legal Basis Section 301 → 122 Clause

📌 Explanation:
- Base 0%: Transformer parts often enjoy low base tariffs due to industrial importance.
- 25% + 10%: Surcharges apply fully.
- Total 35%: Same as above. If the product is indeed a transformer part, this is the correct classification.


🎯 3. 3926.30.50.00 – Other Articles of Plastics

Item Content
Base Tariff 5.3%
Section 301 Surcharge +7.5%
122 Clause Tariff +10.0%
Total Rate 22.8%
Calculation CIF Value × 22.8%
De Minimis Exemption Not Available (deny_de_minimis)
Legal Basis Section 301 (partial) → 122 Clause

📌 Explanation:
- Base 5.3%: Plastics have a modest base tariff.
- 7.5% Section 301: Lower surcharge compared to metals/paper, reflecting different trade policies for certain plastic goods.
- 10% 122 Clause: Still applies.
- Total 22.8%: The most cost-effective option if the material is plastic.


🎯 4. 4421.99.98.80 – Other Wooden Articles

Item Content
Base Tariff 3.3%
Section 301 Surcharge +25.0%
122 Clause Tariff +10.0%
Total Rate 38.3%
Calculation CIF Value × 38.3%
De Minimis Exemption Not Available (deny_de_minimis)
Legal Basis Section 301 → 122 Clause

📌 Explanation:
- Base 3.3%: Wood products have a small base tariff.
- 25% Section 301: Full surcharge applies.
- 10% 122 Clause: Applies.
- Total 38.3%: The highest tariff among the options. Avoid this classification unless the product is definitively wood and no other classification fits.


🛠️ IV. Customs Clearance Practical Advice (Real-World Pitfall Guide)

✅ 1. Preparation Checklist (Non-Negotiable)

Document Required Purpose
Product Specification Sheet ✔️ Detail material, dimensions, weight, and end-use (e.g., "for transformer assembly").
Material Certificate ✔️ Crucial to prove if it's Plastic (3926), Wood (4421), or Metal/Paper (4823/8504).
Technical Diagram/Structure ✔️ If claiming 8504, show it’s a structural part for transformers.
Product Photos (Label & Overall) ✔️ Show brand, model, and any material markings.
Commercial Invoice ✔️ Must clearly state "Backing Board for Transformer" or "Plastic Backing Board".
Packing List ✔️ Prevents confusion with packaging materials.

✅ 2. Declaration Tips (Key Mantras)

🔥 "Material Defines Code, Function Defines Context, Name Must Match!"

Scenario Correct Declaration Wrong Practice
Transformer Part 8504.90.96.34/38
Desc: "Backing Board, Structural Part for Transformer"
Declaring as "Plastic Plate" → Wrong HS, Risk of Audit
Plastic Board 3926.30.50.00
Desc: "Plastic Backing Board, Non-Structural"
Declaring as "Wood" → 38.3% Tax vs 22.8%
Wooden Board 4421.99.98.80
Desc: "Wooden Backing Board"
Declaring as "Plastic" → Misdeclaration Penalty
Generic Plate 4823.90.86.20
Desc: "Paper/Cardboard Backing Plate"
Overly vague description → Delays

✅ 3. Special Cases

Situation Handling Advice
Multi-Material Board Declare based on the principal material or essential character. If plastic-coated wood, consult a specialist.
OEM Custom Parts Provide customer design drawings to prove specific use (e.g., transformer support).
Unsure of Material Do not guess. Provide a material analysis report. Guessing plastic might save tax, but if customs finds wood, penalties apply.
Small Samples De Minimis does NOT apply. All samples are subject to full tariffs and duties.

🌍 V. Global Market Comparison (2026 Latest)

Country/Region Recommended HS Code Tariff (CN Origin) Key Certifications Notes
🇺🇸 USA 8504.90.96.34 / 3926.30.50.00 35% (Transformer) / 22.8% (Plastic) FCC (if electrical), RoHS High tariff impact. Plastic is cheaper.
🇨🇳 China 8504.90.96.34 / 3926.30.50.00 5-10% (Import Tariff) CCC (if electrical) Lower tariffs, but export compliance needed.
🇪🇺 EU 8504.90 / 3926.90 0-6.5% CE, RoHS, REACH No Section 301/122 equivalent.
🇬🇧 UK 8504.90 / 3926.90 0-6.5% UKCA, RoHS Post-Brexit rules apply.
🇯🇵 Japan 8504.90 / 3926.90 0-5% PSE (if electrical) Free Trade Agreement (JTEPA) may reduce rates.

📌 Conclusion:
- USA is the most expensive market due to Section 301 and 122 Clause tariffs.
- Plastic classification (3926) offers the lowest duty (22.8%) if material allows.
- Transformer parts (8504) are higher (35%) due to broader trade restrictions on industrial components.


📌 VI. Common Errors & Pitfalls (Lessons Learned)

Error 1: Declaring a Plastic Backing Board as Wooden (4421) to avoid plastic regulations.
👉 Result: 38.3% tariff + potential fraud investigation.

Error 2: Declaring a Transformer Part as a Generic Plastic Plate (3926) without proof.
👉 Result: Customs may reclassify to 8504 (35%) or flag for misdeclaration.

Error 3: Ignoring the 122 Clause.
👉 Result: Even if base tariff is 0%, missing the 10% surcharge leads to underpayment penalties.

Error 4: Using vague names like "Board" or "Plate".
👉 Result: Customs will assign the highest default duty or delay clearance for material verification.

Correct Approach:

"Plastic Backing Board, Model XYZ, for Transformer Assembly, Material: Polypropylene, HS: 3926.30.50.00"


🎯 VII. Conclusion: Smart Classification, Lower Costs, Faster Clearance

🎯 Remember the Mantra:

🔹 "Material First, Function Second, Name Precise!"
🔹 "Plastic is Cheaper (22.8%), Transformer is Specific (35%), Wood is Expensive (38.3%)."
🔹 "122 Clause is Always On (10%), Don't Forget It!"


📌 Pro Tip:
If your Backing Board is plastic and used in non-electrical applications, 3926.30.50.00 is your best financial bet.
If it is for transformers, use 8504.90.96.34/38 but budget for 35%.
Always provide material certificates to avoid costly reclassifications.


📣 Immediate Action:

📞 Contact a licensed customs broker + Provide Material Data Sheet + Apply for Advance Ruling if value is high.
🚀 Ensure your Backing Boards clear US Customs smoothly, without surprise 35%+ tariffs!


Professional Clearance Starts with Accurate Classification!
💼 Every Percent of Duty Saved is Profit Earned!

用户评价

关于 HS 编码归类

协调制度(HS)是由世界海关组织(WCO)制定的国际贸易商品分类标准。全球 200 多个国家采用 HS 系统作为海关关税、贸易统计和进出口监管的基础。

每个 HS 编码遵循以下层级结构:

  • 章(2 位)——商品大类(例如:第 84 章:机器和机械设备)
  • 品目(4 位)——章内的更具体分类
  • 子目(6 位)——国际通用细分,所有 WCO 成员国统一使用
  • 本国细分(8-10 位)——各国自行扩展的细分编码,如美国 HTSUS 10 位编码

正确的 HS 编码归类对于顺利通关、准确缴纳关税和遵守贸易法规至关重要。错误归类可能导致海关延误、多缴关税或罚款。

CN进口到US时,适用的关税税率可能包括:

  • 最惠国(MFN)税率——适用于 WTO 成员国的标准关税税率
  • 普通税率——适用于无贸易协定国家
  • 贸易救济关税——附加关税,如 301 条款(反倾销)、232 条款(国家安全)或反补贴税

本页内容仅供参考。如需正式归类,请咨询当地海关或持牌报关代理。