防静电复合板
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3921905010 | 39.8% | CN | US | Official Doc |
| 3921904010 | 39.2% | CN | US | Official Doc |
| 4823908000 | 35.0% | CN | US | Official Doc |
AI Analysis
🛡️ ESD (Electrostatic Discharge) Composite Boards
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
📌 I. Product Definition & Classification: Do You Really Understand "ESD Composite Boards"?
ESD Composite Boards are specialized materials designed to dissipate static electricity, protecting sensitive electronic components from damage. They are not a single standard product but vary significantly by base material and structure. In international trade, correct classification depends entirely on the primary substrate (plastic/resin vs. cellulose/paper) and the physical form.
There are three primary categories for ESD composite boards based on raw materials:
- Plastic/Resin-Based ESD Boards: Made from polymers (PVC, PP, PE, ABS) often with carbon black or conductive additives.
- Paper/Cellulose-Based ESD Boards: Made from kraft paper or cellulose fibers impregnated with resins or conductive coatings.
⚠️ Key Classification Point:
- If the board is primarily made of plastic or resin, it falls under Chapter 39.
- If the board is primarily made of cellulose or paper, it falls under Chapter 48.
- Do not assume all "composite boards" are the same; the material composition dictates the tax rate and regulatory requirements.
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
Based on the provided data, the ESD composite board is classified into the following HS Codes depending on its specific material composition:
| HS Code | Product Description | Applicable Scenario | Base Material |
|---|---|---|---|
3921.90.50.10 |
Composite boards based on plastic or resin, in the form of boards, sheets, or membranes | ESD PVC mats, plastic-based anti-static tiles, resin-coated conductive sheets | ✅ Plastic/Resin |
3921.90.40.10 |
Other plastic boards, in the form of boards, sheets, or membranes, possibly containing stabilizers | Generic ESD plastic panels, uncoated conductive plastic sheets, boards with anti-static additives | ✅ Plastic/Resin |
4823.90.80.00 |
Composite boards containing cellulose or paper-based substrates, in the form of board-shaped products | ESD kraft paper pads, paper-based static-dissipating mats, cellulose-core conductive boards | ✅ Cellulose/Paper |
🔍 Important Note:
- Plastic-Based (3921): Typically more durable, moisture-resistant, and suitable for industrial flooring or heavy-duty workbenches.
- Paper-Based (4823): Typically lighter, used for packaging liners, temporary static-dissipating sheets, or disposable ESD protection.
- Misclassification Risk: Declaring a plastic-based board as "paper-based" to seek lower base tariffs (0% vs 4.8%) is a common audit trigger and can lead to severe penalties.
💰 III. 2026 Latest Tariff Rate Detailed Explanation (Including Surcharges & Policy Add-ons)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Time: Current tariffs apply including Section 301 and IEEPA surcharges.
🎯 1. 3921.90.50.10 —— Plastic/Resin-Based ESD Composite Boards
| Item | Content |
|---|---|
| Base Tariff | 4.8% |
| Section 301 Surcharge | +25.0% |
| Section 122 Surcharge | +10.0% |
| Total Tariff | 39.8% |
| Tax Calculation | CIF Value × 39.8% |
| De Minimis Exemption | ❌ Not Applicable |
| Legal Basis Path | HTSUS:3921.90.50.10 → Section 301: Footnote 9903.88.01 → Section 122 |
📌 Explanation:
- The 4.8% is the standard Most Favored Nation (MFN) rate for plastic composite boards.
- The 25.0% is the standard Section 301 tariff for Chinese-made plastic articles.
- The 10.0% is an additional surcharge under Section 122 (often related to specific trade enforcement actions).
- Total Impact: Nearly 40% of the value is tax, significantly impacting cost competitiveness.
🎯 2. 3921.90.40.10 —— Other Plastic ESD Boards
| Item | Content |
|---|---|
| Base Tariff | 4.2% |
| Section 301 Surcharge | +25.0% |
| Section 122 Surcharge | +10.0% |
| Total Tariff | 39.2% |
| Tax Calculation | CIF Value × 39.2% |
| De Minimis Exemption | ❌ Not Applicable |
| Legal Basis Path | HTSUS:3921.90.40.10 → Section 301: Footnote 9903.88.01 → Section 122 |
📌 Explanation:
- This code is for "other" plastic boards, often implying a different formulation or lack of specific composite layers compared to 3921.90.50.10.
- The base tariff is slightly lower (4.2% vs 4.8%), resulting in a 0.6% total savings, but the surcharges remain identical.
- Suitable for simpler, single-layer plastic ESD sheets without complex lamination.
🎯 3. 4823.90.80.00 —— Cellulose/Paper-Based ESD Composite Boards
| Item | Content |
|---|---|
| Base Tariff | 0.0% |
| Section 301 Surcharge | +25.0% |
| Section 122 Surcharge | +10.0% |
| Total Tariff | 35.0% |
| Tax Calculation | CIF Value × 35.0% |
| De Minimis Exemption | ❌ Not Applicable |
| Legal Basis Path | HTSUS:4823.90.80.00 → Section 301: Footnote 9903.88.01 → Section 122 |
📌 Explanation:
- The 0.0% base tariff is a significant advantage for paper-based products.
- However, the 25.0% Section 301 and 10.0% Section 122 surcharges are still fully applied to Chinese-origin goods.
- Total Savings: Compared to plastic boards (~39.5%), this code saves approximately 4.2–4.8%.
- Caution: Ensure the product truly meets the definition of "cellulose/paper-based." If it contains >50% plastic by weight or function, it may still be classified under Chapter 39.
🛠️ IV. Customs Clearance Practical Advice (Real-World Pitfall Avoidance)
✅ 1. Required Documentation Checklist (None Can Be Skipped)
| Document | Mandatory? | Description |
|---|---|---|
| ✅ Material Composition Statement | ✔️ | Must clearly state % of plastic vs. cellulose/paper. Critical for choosing between Ch 39 and Ch 48. |
| ✅ Product Specification Sheet | ✔️ | Include dimensions, surface resistivity (e.g., $10^6 - 10^9$ ohms), thickness, and color. |
| ✅ Product Photos | ✔️ | Clear images showing texture, edges, and any labeling. Paper-based boards look fibrous; plastic boards look smooth/glossy. |
| ✅ Commercial Invoice | ✔️ | Must accurately describe the item as "ESD Composite Board" and specify the base material. |
| ✅ Packing List | ✔️ | Detail gross/net weight and package dimensions. |
| ✅ Test Report (Optional but Recommended) | ✔️ | Third-party lab report confirming static-dissipating properties and material composition. |
✅ 2. Declaration Tips (Key Mantra)
🔥 "Material Dictates Code, Resistivity Doesn't Matter for HS!"
| Scenario | Correct Declaration | Incorrect Practice |
|---|---|---|
| PVC Plastic ESD Mat | 3921.90.50.10 or 3921.90.40.10 |
Declare as "Paper Board" to save tax → Audit Risk |
| Kraft Paper ESD Pad | 4823.90.80.00 |
Declare as "Plastic Sheet" → Higher Base Tax (4.8%) |
| Hybrid Material | Analyze primary material by weight/volume | Ambiguous description "Composite Board" → Customs Determination |
| Rolls vs. Sheets | Specify if cut to size or in rolls | Failing to specify form factor |
📌 Crucial Point: The "Anti-Static" (ESD) function is a functional characteristic, not a material characteristic. The HTSUS system classifies by material first. Therefore, you cannot declare an item as "Anti-Static" and bypass material classification.
✅ 3. Special Handling for ESD Goods
| Scenario | Handling Advice |
|---|---|
| Custom Formula ESD Boards | Provide a detailed Bill of Materials (BOM) showing resin type, additives (carbon black, antistatic agents), and base layer. |
| Paper-Based with Plastic Lamination | If the plastic layer is functional (not just protective), customs may classify under Chapter 39. Be honest about composition. |
| Samples for R&D | Even samples are subject to tariffs. Declare accurately. Do not use "Gift" or "Sample" labels to evade taxes. |
| High-Value ESD Boards | Consider applying for Section 301 Exclusions if available for specific plastic electronic components, though rare for general boards. |
🌍 V. Global Market Clearance Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff (China Origin) | Certification Requirements | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 3921.90.50.10 / 4823.90.80.00 |
39.8% (Plastic) / 35.0% (Paper) | None specific for ESD, but material proof required | Highest surcharges in world |
| 🇪🇺 EU | 3921.90 / 4823.90 |
5–6.5% (Plastic) / 5% (Paper) | REACH (Chemical Safety) | No Section 301 equivalent |
| 🇨🇳 China | 3921.90 / 4823.90 |
5–10% | CCC (if for specific electronics) | Lower tariffs, different regulatory focus |
| 🇬🇧 UK | 3921.90 / 4823.90 |
5–6.5% | UKCA | Post-Brexit rules apply |
📌 Conclusion:
- USA is the most expensive market due to Section 301 + Section 122 surcharges.
- Paper-based boards (4823.90.80.00) offer a 4–5% savings over plastic-based boards in the US due to 0% base tariff.
- EU/UK do not have equivalent surcharges, making tariffs significantly lower (5–6%).
📌 VI. Common Mistakes & Pitfall Guide (Lessons Learned)
❌ Mistake 1: Declaring a plastic-based ESD board as paper to get 0% base tax.
👉 Consequence: Customs inspects, finds it's PVC, reclassifies to 3921, and charges 39.8% + penalties.
❌ Mistake 2: Assuming "Anti-Static" is a separate category.
👉 Consequence: ESD is a function, not a material. HS codes are material-based. Ignoring this leads to misclassification.
❌ Mistake 3: Ignoring Section 122 Surcharge.
👉 Consequence: Many traders only account for the 25% Section 301. The additional 10% Section 122 can add $1,000+ on a $10,000 shipment.
✅ Correct Approach:
"PVC-Based ESD Composite Board, 2mm Thick, Surface Resistivity $10^7$ Ohms, Black Color, Model XYZ"
OR
"Cellulose-Based ESD Kraft Paper Board, 5-Ply, Brown, Model ABC"
🎯 VII. Conclusion: Professional Declaration, Save Costs, Ensure Compliance!
🎯 Remember the Mantra:
🔹 "Material First, Function Second. Plastic = 39.8%, Paper = 35.0%. Don't Hide the Truth!"
🔹 "Section 301 + 122 = 35–40% Tax. Plan Your Supply Chain Accordingly."
📌 Pro Tip:
If your ESD boards are made in Vietnam, Mexico, or Thailand, you may be eligible for zero Section 301 surcharges, reducing the total tax to just the base rate (4.8% or 0%).
Recommendation: Consider supply chain diversification to avoid US tariffs if volume is high.
📣 Immediate Action:
📞 Consult a licensed customs broker + Provide Material Composition Report + Request Advance Ruling for complex hybrids.
🚀 Ensure your ESD boards pass through customs smoothly, legally, and cost-effectively!
✨ Professional Clearance Starts with Accurate Classification!
💼 Every Percent of Tariff 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.