Cement Anti seepage Additive
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3403195000 | 40.8% | CN | US | Official Doc |
| 3824402000 | 35.0% | CN | US | Official Doc |
| 3403191000 | 35.2% | CN | US | Official Doc |
| 3824405000 | 40.0% | CN | US | Official Doc |
| 2530908050 | 10.0% | CN | US | Official Doc |
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𧱠Cement Anti-Seepage Additive: HS Code Classification & US Customs Clearance Guide (2026)
π HS Code Reference & Customs Clearance Strategy | 2026 Latest Tariff Analysis | Professional Compliance Guide π Part 1: Product Definition & Classification Logic
Cement Anti-Seepage Additives are chemical or mineral compounds added to concrete, mortar, or grout to improve impermeability, durability, and resistance to water penetration. In international trade, the classification depends strictly on the chemical composition and primary function of the additive.
β οΈ Critical Distinction Point: - If the additive is mineral-based (e.g., silicates, fly ash) β It falls under Chapter 25. - If the additive is organic/inorganic chemical (e.g., polymers, silanes) β It falls under Chapter 38. - If the additive is petroleum/mineral oil-based (lubricants or specific oil-containing preparations) β It falls under Chapter 34.
π¦ Part 2: HS Code Classification Details (2026 Tariff Schedule)
| HS Code | Product Description | Key Characteristics | Classification Logic |
|---|---|---|---|
2530.90.80.50 |
Other mineral products (Mineral Additives) | Mineral-based, inorganic, non-specified elsewhere | Logic: Fits "Other mineral products" if not chemically prepared as a chemical product. |
3824.40.20.00 |
Prepared Binders for Metal Foundry Molds & Cores / Concrete Additives | Inorganic or organic chemical preparations | Logic: Classified as "Other prepared binders" or chemical additives for concrete/cement. |
3824.40.50.00 |
Prepared Binders for Foundry Molds / Concrete Additives | Chemical preparations specifically for cement/mortar | Logic: Specifically identified as a "preparation for cement, mortar or concrete." |
3403.19.10.00 |
Lubricating Preparations Containing Petroleum Oils | Oil-based chemical preparations | Logic: If the additive is primarily a lubricant or contains significant petroleum/mineral oil content as per Chapter 34 definitions. |
3403.19.50.00 |
Other Lubricating Preparations | Petroleum or mineral oil-based anti-corrosion/preparations | Logic: Used if the product is explicitly defined as a corrosion-prevention agent containing petroleum oils. |
π Key Reminder: - Chapter 25 is for raw or simply processed minerals. - Chapter 38 is for complex chemical preparations and anti-corrosion agents for construction. - Chapter 34 is specifically for lubricating preparations and anti-corrosion preparations based on petroleum/mineral oils. - Do not confuse "chemical additives" with "lubricating preparations." The presence of petroleum oil shifts the code to 3403.
π° Part 3: 2026 Tariff Rate Breakdown (US Market)
β Applicable Country: United States (US) β Origin: China (CN) β Effective Date: November 10, 2025 (and subsequent imports)
π― 1. 2530.90.80.50 ββ Mineral Additives (Lowest Risk)
| Item | Details |
|---|---|
| Base Tariff | 0.0% |
| USITC Additional Tariff | 0.0% |
| IEEPA Additional Tariff | +10% (ιε―ΉδΈε½/ι¦ζΈ―δΊ§ε) |
| Total Tax Rate | 10.0% |
| Calculation | CIF Value Γ 10% |
| De Minimis Eligibility | β No (deny_de_minimis) |
| Legal Path | IEEPA:9903.01.25 β USITC:2530.90.80.50 |
π Explanation: - This is the most tax-efficient classification if the product qualifies as a simple mineral product. - Only the IEEPA 10% surcharge applies. No Section 301 (25%) tariff.
π― 2. 3824.40.20.00 & 3824.40.50.00 ββ Chemical/Concrete Additives
| Item | Details |
|---|---|
| Base Tariff | 0.0% (~3824.40.20) / 5.0% (~3824.40.50) |
| USITC Additional Tariff | +25% |
| IEEPA Additional Tariff | +10% |
| Total Tax Rate | 35.0% (~3824.40.20) / 40.0% (~3824.40.50) |
| Calculation | CIF Value Γ Total Rate |
| De Minimis Eligibility | β No (deny_de_minimis) |
| Legal Path | IEEPA:9903.01.25 β IEEPA:9903.01.24 β USITC:3824.40.x0.00 β FOOTNOTE:9903.88.01 |
π Explanation: - 3824.40.20.00: Base 0% + 25% (301) + 10% (IEEPA) = 35%. - 3824.40.50.00: Base 5% + 25% (301) + 10% (IEEPA) = 40%. - These are standard chemical preparations for construction. High tariff burden.
π― 3. 3403.19.10.00 & 3403.19.50.00 ββ Petroleum/Oil-Based Additives
| Item | Details |
|---|---|
| Base Tariff | 0.2% (~3403.19.10) / 5.8% (~3403.19.50) |
| USITC Additional Tariff | +25% |
| IEEPA Additional Tariff | +10% |
| Total Tax Rate | 35.2% (~3403.19.10) / 40.8% (~3403.19.50) |
| Calculation | CIF Value Γ Total Rate |
| De Minimis Eligibility | β No (deny_de_minimis) |
| Legal Path | IEEPA:9903.01.25 β IEEPA:9903.01.24 β USITC:3403.19.x0.00 β FOOTNOTE:9903.88.01 |
π Explanation: - If your anti-seepage additive contains petroleum oils or is marketed as a corrosion-prevention agent with oil content, it falls here. - 3403.19.10.00: Base 0.2% + 25% + 10% = 35.2%. - 3403.19.50.00: Base 5.8% + 25% + 10% = 40.8%. - This is the highest tariff category among the options.
π οΈ Part 4: Customs Clearance Practical Advice
β 1. Preparation Checklist (Must-Have Documents)
| Document | Required | Notes |
|---|---|---|
| Product Specification Sheet | β Yes | Must detail chemical composition (Mineral vs. Chemical vs. Oil-based). |
| Safety Data Sheet (SDS) | β Yes | Crucial for customs to determine chemical nature (Chapter 38 vs 34). |
| Commercial Invoice | β Yes | Clearly state "Concrete Additive" or "Anti-Seepage Agent." Avoid vague terms. |
| Certificate of Origin (CO) | β Yes | Required for IEEPA assessment. |
| Bill of Lading | β Yes | Standard shipping document. |
| Third-Party Test Report | β Recommended | To prove mineral content (for 2530) or chemical composition. |
β 2. Declaration Strategy (Key Tips)
π₯ "Composition Determines Code, Oil Means High Tax!"
| Scenario | Recommended HS Code | Tax Rate | Strategy |
|---|---|---|---|
| Pure Mineral Additive | 2530.90.80.50 |
10% | Best Option. Provide SDS proving inorganic/mineral nature. |
| Organic/Inorganic Chemical Additive | 3824.40.20.00 |
35% | Standard for most polymer-based additives. |
| Oil-Containing Corrosion Agent | 3403.19.50.00 |
40.8% | Avoid if possible. Only use if explicitly oil-based. |
| Foundry Binder for Concrete | 3824.40.50.00 |
40% | Specific use-case. Ensure product fits "preparation for cement." |
π Warning: - Misclassification Penalty: If you declare a chemical additive as "Mineral" (
2530) to save 25% tariff, but customs finds petroleum or organic polymers, you will face back taxes + fines. - Oil Content: If the product contains petroleum distillates, it must be classified under Chapter 34 (3403), triggering the highest tax.
β 3. Special Cases
| Case | Handling Advice |
|---|---|
| Hybrid Additives | If it contains both minerals and chemicals, the primary function and characteristic material determine the code. Usually, chemical binding agents push it to Chapter 38. |
| Sample vs. Bulk | Both are subject to the same tariff rates. De Minimis ($800) exemption does not apply. |
| Private Label | Ensure the supplierβs SDS matches your declared composition. |
π Part 5: Global Market Comparison (2026)
| Country/Region | Recommended HS Code | Estimated Tariff (China Origin) | Notes |
|---|---|---|---|
| πΊπΈ USA | 2530.90.80.50 (if mineral) |
10% | Best for mineral-based. Chemicals face 35-40%. |
| πΊπΈ USA | 3824.40.20.00 (if chemical) |
35% | Standard for most modern chemical additives. |
| π¨π³ China | 3824.40.20.00 |
5-6% | Low import tariff. No additional surcharges. |
| πͺπΊ EU | 3824.40.20.00 |
0-6% | Varies by member state. No Section 301/IEEPA equivalents. |
| π¬π§ UK | 3824.40.20.00 |
0-6% | Post-Brexit tariffs generally aligned with EU. |
π Conclusion: - USA is the most challenging market due to Section 301 and IEEPA tariffs. - Mineral-based additives (
2530) offer the lowest risk and cost (10%). - Chemical additives (3824) are standard but expensive (35%). - Oil-based additives (3403) are the most expensive (40.8%) and should be avoided if the product allows mineral/chemical alternatives.
π Part 6: Common Mistakes & Pitfalls
β Mistake 1: Declaring a chemical polymer additive as "Mineral Product" (2530) |
π Consequence: Customs audit reveals organic content β Back taxes + 25% penalty.
β Mistake 2: Ignoring "Petroleum Oil" content in the ingredient list |
π Consequence: Misclassified to 2530 or 3824 β Reclassified to 3403 β 40.8% tax applied retroactively.
β Mistake 3: Assuming "De Minimis" ($800) exemption applies | π Consequence: False. All HS codes listed are deny_de_minimis. Every shipment is taxed.
β Best Practice:
"Concrete Anti-Seepage Agent, [Mineral/Chemical] Based, SDS Attached, Model XYZ, Intended for Residential Construction"
π― Part 7: Conclusion
π― Remember:
πΉ "Mineral = 10%, Chemical = 35%, Oil = 40.8%." πΉ "De Minimis Does Not Apply!" πΉ "SDS is Your Best Friend in Classification."
π Pro Tip:
If your product is primarily a mineral additive (e.g., silicate-based), insist on HS Code 2530.90.80.50 for maximum savings.
If it is a chemical polymer, accept 3824.40.20.00 as the standard.
Avoid 3403 unless the product is explicitly oil-based, as it carries the highest tax burden.
π£ Immediate Action:
π Contact your supplier for the SDS (Safety Data Sheet). π Verify chemical composition against Chapter 25, 34, and 38 criteria. πΌ Accurate classification saves thousands in tariffs!
β¨ Professional Clearance Starts with Accurate Classification! πΌ Every percentage point matters in your profit margin!
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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.