粗滤纸
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 4823201000 | 35.0% | CN | US | Official Doc |
| 8421990180 | 35.0% | CN | US | Official Doc |
| 4823209000 | 35.0% | CN | US | Official Doc |
| 8421290065 | 35.0% | CN | US | Official Doc |
| 4823201000 | 35.0% | CN | US | Official Doc |
AI Analysis
📄 Precision & Coarse Filter Paper (Industrial Filtration Media)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Customs Strategy
📌 I. Product Definition & Classification: What Exactly is "Filter Paper"?
Filter paper, whether Precision (精密) or Coarse (粗滤), is a specialized porous material used for separating solids from fluids (liquids or gases). In international trade, it is not a single entity but is classified based on its physical form, composition, and end-use.
The core distinction lies in: 1. Material vs. Function: Is it treated as a paper product (chemical/manufactured good) or as a part of a filtration machine (functional component)? 2. Porosity: "Coarse" implies larger pore sizes for bulk separation; "Precision" implies micron-level filtration for high-purity applications.
⚠️ Key Distinction Point:
- If described primarily as raw material or paper product → Likely falls under Chapter 48 (Paper/Paperboard).
- If described as a functional medium for a machine → Likely falls under Chapter 84 (Machinery/Parts).
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
| HS Code | Product Description | Application Scenario | Primary Classification Basis |
|---|---|---|---|
4823.20.10.00 |
Precision Filter Paper | High-purity filtration, laboratory analysis, micro-filtration | Classified as Filter Paper/Cardboard based on material |
4823.20.90.00 |
General Filter Paper/Cardboard | Broader category under filter paper, specific uses | Classified under Filter Paper/Cardboard (Other specific uses) |
8421.99.01.80 |
Filter Medium for Machinery | Parts of filtration/purification machines | Classified as Filtering/Purifying Machinery Parts |
8421.29.00.65 |
Liquid Filtration Consumables | Consumables for liquid filtration/purification apparatus | Classified as Liquid Filtration/ Purification Consumables |
4823.20.10.00 |
Coarse Filter Paper | Bulk separation, initial filtration, similar material to precision paper | Classified as Filter Paper/Cardboard (Material similarity) |
🔍 Key Reminder:
- Both Precision and Coarse filter papers can be classified under Chapter 48 if the emphasis is on the paper medium itself. - If the paper is sold as an integral, non-replaceable, or specialized component of a specific filtration machine, it may be classified under Chapter 84. - Warning: Misclassification can lead to significant tariff differences due to Section 122 and USITC duties.
💰 III. 2026 Latest Tariff Rate Breakdown (Including Surcharges & Policy Add-ons)
✅ Applicable Country: United States (US)
✅ Country of Origin: China (CN)
✅ Effective Date: 2025 November 10 onwards (including subsequent imports)
🎯 1. 4823.20.10.00 —— Precision Filter Paper (Chapter 48)
| Item | Content |
|---|---|
| Base Tariff Rate | 0% (ad valorem) |
| Section 301 Surcharge | +25% (USITC Footnote 9903.48.23.20) |
| Section 122 Surcharge | +10% (Bilateral trade measures) |
| Total Tariff Rate | 35.0% |
| Tax Calculation | CIF Value × 35% |
| De Minimis Eligibility | ❌ Not Eligible (deny_de_minimis) |
| Legal Basis Path | Section 301: 9903.48.23.20 → Section 122: 10% → USITC: 4823.20.10.00 |
📌 Explanation:
- Even though the base tariff is 0%, the 25% Section 301 duty is significant. - An additional 10% Section 122 tariff applies, bringing the total to 35%. - This is a high-cost category for Chinese-origin filter paper.
🎯 2. 8421.99.01.80 —— Filter Medium for Machinery (Chapter 84)
| Item | Content |
|---|---|
| Base Tariff Rate | 0% (ad valorem) |
| Section 301 Surcharge | +25% |
| Section 122 Surcharge | +10% |
| Total Tariff Rate | 35.0% |
| Tax Calculation | CIF Value × 35% |
| De Minimis Eligibility | ❌ Not Eligible |
| Legal Basis Path | Section 301: 9903.84.21.99 → Section 122: 10% → USITC: 8421.99.01.80 |
📌 Note:
- Although classified under Machinery Parts (Chapter 84), it is still subject to the same 35% total tariff. - Classification as "Part" may require stricter technical documentation.
🎯 3. 4823.20.90.00 —— Other Filter Paper/Cardboard
| Item | Content |
|---|---|
| Base Tariff Rate | 0% |
| Section 301 Surcharge | +25% |
| Section 122 Surcharge | +10% |
| Total Tariff Rate | 35.0% |
| Tax Calculation | CIF Value × 35% |
| De Minimis Eligibility | ❌ Not Eligible |
| Legal Basis Path | Section 301: 9903.48.23.20 → Section 122: 10% → USITC: 4823.20.90.00 |
🎯 4. 8421.29.00.65 —— Liquid Filtration Consumables
| Item | Content |
|---|---|
| Base Tariff Rate | 0% |
| Section 301 Surcharge | +25% |
| Section 122 Surcharge | +10% |
| Total Tariff Rate | 35.0% |
| Tax Calculation | CIF Value × 35% |
| De Minimis Eligibility | ❌ Not Eligible |
| Legal Basis Path | Section 301: 9903.84.21.29 → Section 122: 10% → USITC: 8421.29.00.65 |
📌 Consistency Alert:
- Regardless of whether it is classified under Chapter 48 (Paper) or Chapter 84 (Machinery/Parts), the total effective tariff rate remains 35.0%. - The key difference lies in customs scrutiny: Chapter 84 may require proof of machine compatibility; Chapter 48 focuses on material composition.
🛠️ IV. Customs Clearance Practical Advice (Real-World Pitfall Avoidance)
✅ 1. Preparation Checklist (Non-negotiable)
| Document | Mandatory? | Explanation |
|---|---|---|
| ✅ Product Specification Sheet | ✔️ | Must detail pore size, material type (e.g., cellulose, glass fiber), dimensions, and flow rate. |
| ✅ Material Composition Certificate | ✔️ | Proof of raw materials to confirm classification under Chapter 48 if applicable. |
| ✅ Product Photos (Label & Package) | ✔️ | Clear view of model number, brand, and usage instructions. |
| ✅ Commercial Invoice | ✔️ | Must explicitly state "Filter Paper" or "Filtration Medium" and its intended use. |
| ✅ Packing List | ✔️ | Detailed weight and dimensions. |
| ✅ Certificate of Origin (CO) | ✔️ | Essential for verifying Chinese origin for Section 301/122 application. |
✅ 2. Declaration Tips (Key Mnemonic)
🔥 "Material First, Function Second; Paper is Paper, Part is Part!"
| Scenario | Correct Declaration | Wrong Practice |
|---|---|---|
| Selling bulk rolls of filter paper | 4823.20.10.00 or 4823.20.90.00 (Paper) |
Declaring as "Machinery Part" → Complex scrutiny |
| Selling pre-cut filter elements for a machine | 8421.99.01.80 or 8421.29.00.65 (Part) |
Declaring as "Paper" → May be rejected if clearly a machine part |
| Coarse Filter Paper (Bulk) | 4823.20.10.00 |
Misdeclaring as generic cardboard |
| Precision Filter Paper (Lab Use) | 4823.20.10.00 |
Under-declaring value |
✅ 3. Special Case Handling
| Situation | Handling Advice |
|---|---|
| OEM Custom Filter Paper | Provide customer order + design specs. Proves specific use, supporting Chapter 84 if needed. |
| Filter Paper + Housing (Integrated) | Declare as Assembly/Part (8421.99.01.80). Do not split into paper + housing to avoid multiple tariffs. |
| Lab Reagents + Filter Paper | If sold as a kit, the primary function determines the code. Usually, the paper dominates if it's a consumable. |
| Export to Non-US Markets | Tariffs are 0% for EU/China/Japan for these codes. Only US has the 35% burden. |
🌍 V. Global Market Customs Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff (CN Origin) | Certification Requirements | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 4823.20.10.00 / 8421.99.01.80 |
35% (25% Sec 301 + 10% Sec 122) | None specific | High Cost Market |
| 🇨🇳 China | 4823.20.10.00 |
0% - 5% | RoHS (if electronic use) | Low Cost |
| 🇪🇺 EU | 4823.20.10.00 |
0% | CE (if machine part) | No Add-on Tariffs |
| 🇦🇺 Australia | 4823.20.10.00 |
5% | None | Moderate Cost |
| 🇯🇵 Japan | 4823.20.10.00 |
0% - 5% | None | Low Cost |
📌 Conclusion:
- The USA is the only major market imposing heavy additional duties (35%) on Chinese-origin filter paper. - For other markets, the tariff is negligible (0-5%). - Strategic Advice: If exporting to the US, consider supply chain diversification (e.g., via Southeast Asia) to mitigate 35% tariff impact, or ensure high value-added to absorb the cost.
📌 VI. Common Errors & Pitfall Guide (Lessons Learned)
❌ Error 1: Declaring "Filter Paper" as "Cardboard" (4823.90)
👉 Consequence: Customs may reclassify to 4823.20 (specific filter paper), triggering Section 301 duties if not explicitly stated.
❌ Error 2: Splitting "Filter Element" (Paper + Housing) into two shipments
👉 Consequence: The housing might be classified under a different code with different duties, leading to audit risks and delayed clearance.
❌ Error 3: Ignoring Section 122 (10% Surcharge)
👉 Consequence: Underestimating total landed cost by 10%, hurting profit margins.
❌ Error 4: Using vague terms like "Filtration Media" without specifying material
👉 Consequence: Customs may assume the highest duty rate or request extensive technical data, causing delays.
✅ Correct Practice:
"Precision Filter Paper, Cellulose-based, Micron-rated 5μm, Roll Form, Model XYZ, For Laboratory Use"
OR
"Replaceable Filter Element for Liquid Purification Machine, Media: Filter Paper, Housing: Plastic, Model ABC"
🎯 VII. Conclusion: Precision Classification, Cost Control
🎯 Remember the Key Points:
🔹 "Paper is Chapter 48, Part is Chapter 84; Both carry 35% in the US!"
🔹 "Don't ignore Section 122; 10% adds up fast!"
🔹 "Be specific in description; Vague terms lead to audits!"
📌 Pro Tip:
If your filter paper is exported to the US, calculate the 35% total tariff in your pricing model from day one.
For non-US markets, highlight 0% tariff as a competitive advantage.
Consider applying for an Advance Ruling from US Customs if your product falls into a gray area between "Paper" and "Machinery Part".
📣 Immediate Action:
📞 Consult a licensed customs broker + Provide detailed product specs + Apply for HS Code Advance Ruling
🚀 Ensure smooth customs clearance, predictable costs, and maximized profit margins!
✨ Professional Customs, Starting with Accurate Classification!
💼 Every cent of tariff saved is pure profit earned!
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.