Epoxy Resin Cement Additive
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 350691 | 0.0% | CN | US | Official Doc |
| 382499 | 0.0% | CN | US | Official Doc |
| 3824405000 | 40.0% | CN | US | Official Doc |
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ποΈ Epoxy Resin Cement Additive: The Sticky Truth Behind Construction Chemicals
π HS Code Classification & Customs Clearance Guide | 2026 Tariff Analysis | Professional Strategy for Importers
π Part 1: Product Definition β What Exactly Are We Talking About?
An Epoxy Resin Cement Additive is a specialized chemical preparation used to enhance the properties of cement, mortar, or concrete. It is not a structural adhesive in the traditional sense (like gluing wood or metal), but rather a preparation for cements.
In international trade, the distinction between "Adhesive" and "Cement Additive" is critical.
Adhesives (HS 3506): Used to join surfaces together permanently.
Cement Additives (HS 3824): Added to the cement mix before or during pouring to improve strength, setting time, water resistance, or durability.
β οΈ Key Distinction Point:
- If the product is primarily used to glue two distinct objects together β Likely HS 3506.
- If the product is mixed into cement/concrete/mortar to modify its physical properties β HS 3824.
- Since the input specifies "Cement Additive", the primary classification logic points toward Chapter 38, specifically heading 3824.
π¦ Part 2: HS Code Classification Details (2026 Latest Tariff Reference)
Based on the provided data, here is the breakdown of the relevant HS Codes and why they are (or are not) applicable.
| HS Code | Product Description | Applicability to "Epoxy Resin Cement Additive" | Key Reason |
|---|---|---|---|
3506.91 |
Products suitable for use as adhesives, containing epoxy resins | β οΈ Possible Alternative | The description states: "as the additive is an epoxy resin cement additive." This implies that if the product is marketed primarily as an adhesive (e.g., structural bonding for tiles over concrete), it might fall here. However, for mixing into cement, this is less likely. |
3824.99 |
Prepared binders for foundry molds; other chemical products not elsewhere specified | β Less Likely | This is a "catch-all" for chemical preparations. It is only used if no more specific description fits. Since 3824.40 specifically mentions cement additives, 3824.99 is subordinate. |
3824.40.50.00 |
Prepared additives for cements, mortars or concretes: Other | β Best Fit | The description explicitly states: "Prepared additives for cements, mortars or concretes: Other." This is the most accurate classification for an epoxy-based additive intended to modify cement properties. |
π Critical Note:
- The data explicitly links3824.40.50.00to the description: "Prepared binders for foundry molds or cores; chemical products... Prepared additives for cements, mortars or concretes: Other".
- This is the only code in the dataset with a clear, non-error tax rate, making it the pragmatic choice for compliance and cost calculation.
π° Part 3: 2026 Tariff Rate Breakdown (Detailed Tax Analysis)
β Applicable Country: United States (US)
β Origin: China (CN) (Inferred from typical 30%+ rates and 25% Section 301 context)
β HS Code:3824.40.50.00
π― 1. 3824.40.50.00 β Prepared Additives for Cements, Mortars, or Concretes
| Tax Component | Rate | Source / Basis |
|---|---|---|
| Base Duty (MFN) | 5.0% | Standard Most-Favored-Nation tariff for chemical preparations in Chapter 38. |
| Section 301 Additional Duty | 25.0% | Imposed on Chinese goods under US Trade Act Section 301. |
| Total Duty Rate | 30.0% | Sum of Base + Additional |
| Tax Detail Note | "εΊη‘ε ³η¨: 5.0%, ε εΎε ³η¨: 25.0%" | Directly from provided data. |
| De Minimis Eligibility | β Not Eligible | Section 301 duties generally apply to all shipments, including de minimis (though enforcement varies by carrier/value). |
π Explanation:
- The 5% base rate is the standard WTO MFN rate for cement additives.
- The 25% additional duty is a punitive tariff targeting specific Chinese chemical products.
- Total 30% is a significant cost factor. Importers must budget for this high duty burden.
- No Other Surcharges: The data does not mention IEEPA (10%) or other surcharges for this specific code, unlike the monitor example. Only Base + Section 301 apply.
π οΈ Part 4: Customs Clearance Practical Advice (Pitfall Avoidance)
β 1. Documentation Checklist (Essential for Smooth Clearance)
| Document | Required? | Purpose |
|---|---|---|
| β Product Specification Sheet | βοΈ | Must clearly state: "Epoxy Resin Cement Additive" β NOT "Structural Adhesive". |
| β SDS (Safety Data Sheet) | βοΈ | Proves chemical composition and safety handling. Customs uses this to verify HS Code. |
| β Commercial Invoice | βοΈ | Must describe goods as "Chemical Additive for Concrete" to avoid classification disputes. |
| β Certificate of Origin | βοΈ | Essential to confirm Chinese origin and assess 25% Section 301 applicability. |
| β Formula/Composition Breakdown | βοΈ | To prove it is a "preparation for cements" and not a pure epoxy resin or adhesive. |
β 2. Declaration Tips (Key Phrases to Use)
π₯ βUse the Right Words: βCement Additiveβ, Not βGlueβ!β
| Scenario | Recommended Declaration | Risk if Wrong |
|---|---|---|
| Correct | "Epoxy resin cement additive, for use in concrete mixing, HS 3824.40.50.00" |
Low risk, clear classification. |
| Wrong | "Epoxy adhesive for construction" |
May be misclassified as 3506.91 β Potential 45%+ risk if other surcharges apply, or delays for reclassification. |
| Wrong | "Chemical binder" |
Too vague β May be flagged for manual review β Delay + Potential Audit. |
π Pro Tip:
- Ensure your SDS and Invoice match. If the invoice says "Adhesive" but you claim3824.40.50.00, Customs may question the classification.
- If the product is a liquid epoxy that is poured into formwork (not mixed into cement), it might be considered a coating or adhesive, changing the HS Code. Be precise.
π Part 5: Global Market Comparison (2026)
| Country/Region | Recommended HS Code | Estimated Duty | Notes |
|---|---|---|---|
| πΊπΈ USA | 3824.40.50.00 |
30.0% (5% + 25% S301) | High barrier due to Section 301. |
| πͺπΊ EU | 3824.40.00 |
~6.5% | No Section 301. Standard MFN applies. |
| π¨π³ China | 3824.40.50.00 |
~5-7% | Import duty for Chinese goods is irrelevant, but used for reference. |
| π¦πΊ Australia | 3824.40.00 |
~5% | Free Trade Agreement may apply depending on origin. |
π Conclusion:
- The US market is the most challenging due to the 25% additional tariff.
- For other markets, the duty is significantly lower (~5-7%).
π Part 6: Common Mistakes & Pitfalls (Lessons Learned)
β Mistake 1: Classifying as HS 3506.91 (Epoxy Adhesive)
π Consequence: If deemed incorrect, Customs may apply different rates or penalties. While 3506.91 may have lower base duty, it risks misclassification audits if the primary use is cement modification, not bonding.
β Mistake 2: Failing to declare Chinese Origin
π Consequence: If origin is not clearly marked, you might pay only 5% initially, but later face back-taxes + penalties when the 25% Section 301 duty is enforced upon audit.
β Mistake 3: Vague Description ("Chemical Product")
π Consequence: Customs may assign a default higher tariff or hold the shipment for manual review, causing delays of 2-4 weeks.
β Correct Approach:
"Epoxy-based cement additive, HS 3824.40.50.00, Origin: China"
π― Part 7: Conclusion β Smart Importing Strategy
π― Remember:
πΉ βCement Additive β Adhesiveβ
πΉ βHS 3824.40.50.00 is your best friend for cement modsβ
πΉ β30% Total Duty in the US β Plan Your Costs Accordingly!β
π Pro Tip:
If your epoxy cement additive is packaged in small quantities (under $800), check if de minimis exemptions apply in the US. However, for chemical products, enforcement is tightening. Always declare accurately.
π£ Immediate Action:
π Consult your customs broker to confirm the exact physical form (liquid/powder) and primary use.
π Prepare SDS and precise descriptions to avoid the 30% duty trap!
β¨ Professional Clearance Starts with Accurate Classification!
πΌ Every percent of duty saved is pure profit!
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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.