Polycarbonate Mold Resistant Board
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3920610000 | 40.8% | CN | US | Official Doc |
| 3925200091 | 22.8% | CN | US | Official Doc |
| 3925900000 | 40.3% | CN | US | Official Doc |
| 3920991000 | 41.0% | CN | US | Official Doc |
| 3921190090 | 41.5% | CN | US | Official Doc |
Product Images
AI Analysis
π‘οΈ Polycarbonate Mold Resistant Board | Advanced Plastic Construction Component
π HS Code Classification & 2026 U.S. Tariff Strategy | Full Compliance Guide
π A. Product Definition: What is a "Polycarbonate Mold Resistant Board"?
Polycarbonate Mold Resistant Board is a high-performance plastic building material designed for environments with high humidity, fungal growth, or chemical exposure (e.g., food processing, healthcare, marine, and cleanrooms).
In international trade (specifically US import from China), this product falls under Chapter 39 (Plastics and Articles Thereof). However, the specific HS Code depends entirely on the manufacturing process, surface treatment, and structural classification:
| Classification Logic | Description |
|---|---|
| Category 1: Building Components | If the board is specifically shaped, finished, or treated as a construction component (e.g., pre-cut for walls/roofs, anti-microbial treated surface). |
| Category 2: Generic Plastic Sheets | If it is a raw sheet with only basic anti-mold additives but no special functional surface treatment. |
| Category 3: Composite/Functional Board | If it involves laminating, coating, or specific non-cellular structural modifications. |
β οΈ Critical Warning:
Misclassification here leads to significant tariff penalties.
- Correct Classification (Building Component) β Total Tax: 22.8%
- Incorrect Classification (Generic Sheet) β Total Tax: 40.3% ~ 41.5%
Difference: Over 170 basis points (1.7x) in tax cost!
π¦ B. HS Code Classification Matrix (2026 U.S. Tariff Data)
Based on Chinese Origin Imports to USA (Including 301 + 122 Clause Tariffs)
| HS Code | Product Description (Summary) | Classification Basis | Total Tax Rate |
|---|---|---|---|
| 3925.20.00.91 | Polycarbonate Mold Resistant Board β Classified as Plastic Building Components | Specific for construction use, shaped/fitted | 22.8% |
| 3925.90.00.00 | Polycarbonate Mold Resistant Board β General Plastic Building Components (Other) | Broader building category, less specific | 40.3% |
| 3920.99.10.00 | Polycarbonate Mold Resistant Board β Composite/Functional Boards | Multi-layer or specific functional processing | 41.0% |
| 3921.19.00.90 | Polycarbonate Mold Resistant Board β Other Plastic Sheets/Plates | Generic plastic plate classification | 41.5% |
| 3920.61.00.00 | Polycarbonate Mold Resistant Board β Non-cellular, Unreinforced Plates | Plain plastic plate without specific treatment | 40.8% |
π Deep Dive Analysis:
- 3925.20.00.91 is the optimal classification for purpose-built anti-mold boards intended for construction. It carries the lowest tariff burden.
- 3925.90.00.00 is a fallback if the board doesn't strictly meet the "specific" criteria of 3925.20.
- 3920/3921 codes generally apply to raw sheets or generic sheets that haven't been processed into a "building component." If you ship raw sheets, these apply, but you lose the "Construction Component" benefit.
π° C. 2026 Tax Structure & Detailed Breakdown
Applicable to: US Imports from China (CN)
ηζζ₯ζοΌCurrent (Includes Section 301 + 122 Clauses)
π― 1. 3925.20.00.91 (Lowest Tax: 22.8%)
| Item | Rate | Legal Basis |
|---|---|---|
| Base Tariff | 5.3% | Normal MFN Rate |
| Section 301 (Trade War) | +7.5% | Additional "301" Tariffs (China specific) |
| Section 122 | +10.0% | New 122 Clause Tariff (Effective 2024/2025) |
| Total | 22.8% | Optimal Rate |
π Why 122 Clause?
The "122 Clause" (Section 122 of the Trade Facilitation and Trade Enforcement Act) targets specific Chinese plastic imports to counter dumping and unfair subsidies. This is the most recent and critical factor raising taxes on generic plastic sheets.
π― 2. 3925.90.00.00 (High Tax: 40.3%)
| Item | Rate | Legal Basis |
|---|---|---|
| Base Tariff | 5.3% | Normal MFN Rate |
| Section 301 (Trade War) | +25.0% | Higher 301 Tariff (Most other plastics) |
| Section 122 | +10.0% | Section 122 Clause |
| Total | 40.3% | Penalty Rate |
π― 3. 3920.99.10.00 / 3921.19.00.90 / 3920.61.00.00 (Very High Tax: 40.8% - 41.5%)
| Item | Rate | Legal Basis |
|---|---|---|
| Base Tariff | 5.8% - 6.5% | Varies by sub-category |
| Section 301 (Trade War) | +25.0% | Standard High 301 Tariff |
| Section 122 | +10.0% | Section 122 Clause |
| Total | 40.8% - 41.5% | Highest Risk |
β οΈ Key Takeaway:
The Section 301 tariff difference (7.5% vs 25%) is the main driver of the cost gap. If your product can be classified as a specific building component (3925.20), you save 17.5% immediately. If it is classified as a generic sheet, you pay the full 25% + 10% = 35% extra.
π οΈ D. Customs Clearance Strategy & Risk Mitigation
Action Plan for Importers
β 1. Pre-Shipment Documentation Checklist
To justify 3925.20.00.91 (22.8% tax) and avoid being downgraded to 3920/3921 (40%+ tax):
| Document | Requirement | Why It Matters |
|---|---|---|
| Product Technical Spec | Must explicitly state "Mold Resistant", "Anti-Fungal", and "Construction Use" | Proves functional intent for building, not just raw material. |
| Certificate of Treatment | Lab report confirming anti-mold agent application or surface treatment | Distinguishes from "plain plastic sheet" (3920). |
| Installation Guide | Shows how it is used in building structures (walls, roofs, ceilings) | Essential for "Building Component" classification. |
| Packaging Label | Must include "Polycarbonate Mold Resistant Board for Construction" | Prevents "generic" description which triggers higher tariffs. |
| 3D Drawing/Cut Plan | If pre-cut or shaped, provide CAD drawings | Proves it is a "component," not a "sheet." |
β 2. Declaration Best Practices (The "Gold Standard")
DO NOT write: "Plastic Board" or "PC Sheet".
DO write: "Polycarbonate Mold Resistant Board for Building Construction (Anti-Fungal Treated)"
π£οΈ Sample Customs Declaration Description:
"HS 3925.20.00.91: Polycarbonate Mold Resistant Board, specifically designed for wet environment construction (e.g., swimming pool walls, food processing). Material: Polycarbonate. Treatment: Anti-microbial coating. Shape: Rectangular panels, pre-drilled. Not a raw plastic sheet."
β 3. Avoiding Common Pitfalls
| β Mistake | β Consequence | β Solution |
|---|---|---|
| Declaring as "Plastic Sheet" (3920/3921) | Tariff jumps to 40%+ | Provide proof of "Building Component" status. |
| No Anti-Mold Certification | Customs rejects "Mold Resistant" claim | Submit third-party lab report (ASTM G21 / ISO 846). |
| Shipping Raw Sheets (No Treatment) | Cannot use 3925.20 | Classify correctly under 3920/3921 to avoid fraud penalties. |
| Splitting Shipment (Mixed HS Codes) | Audit Risk | Keep shipment uniform; do not mix raw sheets and finished boards. |
π E. Strategic Recommendation for 2026
-
Prioritize 3925.20.00.91:
If your product is specifically treated for mold resistance and intended for construction, aggressively push for this code. The 17.5% tax saving is massive.
Action: Ensure your supplier's technical data sheet explicitly mentions "Mold Resistant" and "Building Application." -
Verify "122 Clause" Eligibility:
The 10% "122 Clause" tariff is currently active for Chinese plastics. Check if any Exclusions apply to your specific product formulation.
Action: File for an exclusion request if your product is unique and not available from US manufacturers. -
Pre-Ruling Application:
Given the high stakes (40% vs 22%), apply for a Binding Ruling from CBP before the first container shipment.
Benefit: Lock in the 22.8% rate legally; avoid post-clearance audits. -
Supply Chain Adjustment:
If 3925.20 is not achievable (e.g., you sell raw sheets), consider manufacturing in Vietnam/Mexico to bypass US Section 301 tariffs (if applicable), or accept the 40% cost as part of the product margin.
π Final Verdict: The Tax War on Plastic Boards
π₯ "It's not just about the plastic; it's about the PURPOSE."
- Construction Purpose = 22.8% (3925.20.00.91)
- Generic Sheet = 40.8% - 41.5% (3920/3921 series)
Your Move:
π Document your "Mold Resistant" claim with lab reports.
π Label your product as "Building Component."
π Apply for a Binding Ruling.
Failure to classify correctly means paying double the tax on every kilogram imported.
β¨ Smart Importers Win with Precision.
πΌ Don't let a 2% HS Code difference cost you 17% in profit.
π‘οΈ Secure your supply chain today!
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) β Broad category of goods (e.g., Chapter 84: Machinery and Mechanical Appliances)
- Heading (4 digits) β More specific grouping within the chapter
- Subheading (6 digits) β Internationally standardized breakdown, used by all WCO member countries
- National subdivisions (8-10 digits) β 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 β The standard duty rate applied to WTO members
- General rate β Applied to countries without trade agreements
- Trade remedy duties β 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.