Sand Modifier
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3824401000 | 41.5% | CN | US | Official Doc |
| 3824405000 | 40.0% | CN | US | Official Doc |
| 2517100015 | 35.0% | CN | US | Official Doc |
| 2517100055 | 35.0% | CN | US | Official Doc |
| 382499 | 0.0% | CN | US | Official Doc |
| 381190 | 0.0% | CN | US | Official Doc |
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ποΈ Sand Modifier (Chemical Additives & Mineral Aggregates)
π HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional-Level Entry Strategy
π Part I: Product Definition & Classification: What Exactly is a "Sand Modifier"?
In international trade, "Sand Modifier" is not a single, unified HS Code. It is a broad functional term that covers two distinct categories of goods:
- Chemical/Industrial Additives (HS Chapter 38): Substances used to chemically or physically alter the properties of sand (e.g., binders, waterproofing agents, surface modifiers) for construction, foundry, or industrial use.
- Mineral Aggregates (HS Chapter 25): The physical sand/gravel itself, sometimes treated or processed, but primarily valued as a raw material rather than a chemical product.
β οΈ Critical Distinction Point:
- If the product is a liquid, powder, or paste intended to change the sand's properties (e.g., adhesion, resistance, binding) β It belongs to Chapter 38.
- If the product is rock, pebble, or crushed stone (physical material) β It belongs to Chapter 25.
- Do not mix "chemical additives" with "raw sand" in the same line item unless explicitly defined as a mixed preparation.
π¦ Part II: HS Code Classification Details (2026 Latest Tariff Authority)
Based on the provided data, here are the specific HS Codes for "Sand Modifiers" and related products. Note that tax information for Chapter 38 items is currently marked as "Error" in the source, while Chapter 25 items have clear rates.
| HS Code | Product Description | Application Scenario | Classification Logic |
|---|---|---|---|
| 3824.99 | Other chemical products and preparations not elsewhere specified or included (NESOI), including additives for modifying sand. | General chemical sand modifiers (non-specific). | β Chemical Preparation |
| 3811.90 | Other chemical products and preparations used in the manufacture of sand-based materials or for modifying sand in construction/industrial processes. | Specific industrial sand treatment agents. | β Chemical Preparation |
| 2517.10.00.15 | Pebbles, gravel, broken/crushed stone for concrete aggregates, road metalling, or ballast (Shingle/Flint), heat-treated or not. | Physical sand/stone aggregates. | β Mineral Material (Not Chemical) |
| 2517.10.00.55 | Other pebbles, gravel, broken/crushed stone for concrete aggregates, road metalling, or ballast. | Physical sand/stone aggregates (Other). | β Mineral Material (Not Chemical) |
| 3824.40.10.00 | Prepared additives for cements, mortars, or concretes containing β₯5% aromatic or modified aromatic substances. | High-performance cement/sand mix additives. | β Chemical Preparation (High Tariff) |
| 3824.40.50.00 | Prepared additives for cements, mortars, or concretes (Other). | Standard cement/sand mix additives. | β Chemical Preparation (High Tariff) |
π Key Reminder:
- Chapter 38 Items (3824.99, 3811.90, 3824.40): These are chemical preparations. Even if the description says "used for modifying sand," they are classified by their chemical nature, not the sand itself.
- Chapter 25 Items (2517.10): These are physical minerals. They are only "sand modifiers" in the literal sense of providing the sand material, not the chemical agent.
π° Part III: 2026 Latest Tariff Rate Breakdown (Including Surcharges)
β Applicable Country: United States (US)
β Origin: China (CN)
β Effective Date: 2025/2026 Tariff Schedule
π― 1. Chemical Sand Modifiers (Chapter 38: 3824.99, 3811.90, 3824.40)
| Item | Content |
|---|---|
| Base Tariff | Varies (5.0% - 6.5% depending on specific subheading) |
| Surtax (Section 301) | +25% (Standard Section 301 surcharge for most Chinese chemical goods) |
| Total Tariff | 30.0% - 31.5% |
| Tax Status | β οΈ Data Note: For 3824.99 and 3811.90, the source data indicates "Failed to retrieve tax information." However, based on standard US-China trade rules, Section 301 surcharges typically apply. For 3824.40, the rates are explicitly calculated below. |
π Detailed Breakdown for 3824.40 (Prepared Additives for Cements/Mortars):
| HS Code | Description | Base Rate | Surtax | Total Rate | Calculation |
|---|---|---|---|---|---|
3824.40.10.00 |
Additives with β₯5% aromatic substances | 6.5% | +25.0% | 31.5% | CIF Γ 31.5% |
3824.40.50.00 |
Other additives for cements/mortars | 5.0% | +25.0% | 30.0% | CIF Γ 30.0% |
π Interpretation:
- High Cost Alert: Chemical additives for construction materials are heavily taxed.
- "Aromatic Substance" Trap: If your additive contains >5% aromatic substances, it falls under3824.40.10.00(31.5%), which is 1.5% higher than standard additives (3824.40.50.00).
- Unknowns for 3824.99/3811.90: Since the source data shows "Error," you must verify with a licensed customs broker. Historically, these also attract the +25% Section 301 surcharge, leading to a total of ~25-30%.
π― 2. Physical Sand & Gravel Aggregates (Chapter 25: 2517.10)
| HS Code | Description | Base Rate | Surtax (Section 301) | Total Rate |
|---|---|---|---|---|
2517.10.00.15 |
Pebbles/Gravel for aggregates/road metalling | 0.0% | +25.0% | 25.0% |
2517.10.00.55 |
Other Pebbles/Gravel for aggregates | 0.0% | +25.0% | 25.0% |
π Note:
- Although the base tariff is 0%, the 25% Section 301 surcharge still applies to Chinese-origin stone/sand products.
- These are heavy, low-value goods. Shipping costs often exceed the duty cost, but the 25% duty remains a significant factor.
π οΈ Part IV: Customs Clearance Practical Advice (Pitfall Avoidance Guide)
β 1. Preparation Checklist (Non-Negotiable)
| Document | Required? | Explanation |
|---|---|---|
| β Safety Data Sheet (SDS) | βοΈ Mandatory | For Chapter 38 products (chemical modifiers). Must show composition, hazard class, and ingredients. |
| β Product Specification Sheet | βοΈ Mandatory | Clearly distinguish between "Chemical Additive" (38xx) and "Mineral Aggregate" (25xx). |
| β Commercial Invoice | βοΈ Mandatory | Must clearly state the HS Code, description, and Country of Origin. |
| β Proof of Non-Aromatic Content | βοΈ If applicable | To qualify for 3824.40.50.00 (30%) instead of 3824.40.10.00 (31.5%), provide lab reports showing <5% aromatic substances. |
| β Certificate of Origin (CO) | βοΈ Mandatory | To confirm China origin and apply Section 301 surcharges accurately. |
β 2. Declaration Tips (Key Mantra)
π₯ βChemical Needs SDS, Stone Needs Weight, Donβt Mix Them!β
| Scenario | Correct Declaration | Incorrect Practice |
|---|---|---|
| Liquid Sand Sealant | 3824.40.50.00 |
Misdeclare as "Building Material" β Delay + Audit |
| Bagged Cement Additive | 3824.40.10.00 (if aromatic) |
Under-declaring as "3824.99" β Risk of Penalty |
| Crushed River Stone | 2517.10.00.15 |
Misdeclare as "Chemical" β Wrong Tax & Inspection |
| Mixed Shipment (Chem + Sand) | Separate Lines | Combined line item β Customs Rejection |
β 3. Special Circumstances
| Situation | Handling Advice |
|---|---|
| OEM Chemical Additive | Provide the formula sheet (generic) to prove it falls under 3824.40 and not 3824.99. |
| Heat-Treated Sand | Specify "Heat-Treated" in the description. If itβs just washed sand, use 2517.10.00.55. |
| Unknown Tax Status (3824.99/3811.90) | Apply for an Advance Ruling before shipping. Do not guess. The "Error" in data is a major risk. |
| Low-Value Samples | β No De Minimis! Section 301 surcharges generally exclude de minimis exemptions for China-origin goods. |
π Part V: Global Market Clearance Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Duty Rate (China Origin) | Certification | Notes |
|---|---|---|---|---|
| πΊπΈ USA | 3824.40.50.00 / 2517.10 |
30.0% - 25.0% | EPA, SDS Required | Heavy Section 301 impact |
| π¨π³ China | 3824.40 / 2517 |
5% - 0% | None | Domestic trade, low duty |
| πͺπΊ EU | 3824.40 / 2517 |
~6.5% - 0% | REACH, CLP | No Section 301 equivalent |
| π¦πΊ Australia | 3824.40 / 2517 |
5% | None | Standard MFN rate |
| π―π΅ Japan | 3824.40 / 2517 |
~6% - 0% | JIS | No major surcharges |
π Conclusion:
- USA is the most expensive market for "Sand Modifiers" due to the 25% Section 301 surcharge stacking on top of base duties.
- EU/Australia/Japan are significantly cheaper, making them better markets for high-volume chemical sand modifiers.
- Physical Sand (2517) has a 0% base rate globally, but the US still charges 25%.
π Part VI: Common Errors & Pitfalls (Lessons from Tears)
β Error 1: Declaring chemical sand additives as "Building Materials" (Chapter 68/39)
π Consequence: Rejected by Customs. Must re-classify to Chapter 38 β 30-31.5% Duty + Penalties.
β Error 2: Confusing "Sand Additive" (3824) with "Sand" (2517)
π Consequence: If you ship a chemical liquid but declare it as "Gravel," Customs will detain it for hazardous material inspection. SDS is mandatory.
β Error 3: Ignoring the "Aromatic Substance" threshold
π Consequence: Shipping 3824.40.50.00 but testing shows >5% aromatic content β Back-duty of 1.5% + Interest.
β Correct Action:
"Prepared Cement Additive, Non-Aromatic, Liquid, 20kg Drum, SDS Provided, HS Code 3824.40.50.00"
π― Part VII: Conclusion: Professional Declaration Saves Money!
π― Remember the Mantra:
πΉ "Chemical = SDS + 30%, Stone = Weight + 25%, Donβt Mix Them!"
πΉ "Aromatics >5%? Thatβs 31.5%! Check your formula!"
π Pro Tip:
Since 3824.99 and 3811.90 show "Tax Error" in the source data, do not assume they are duty-free or low-taxed. Apply the standard 25% Section 301 surcharge in your cost calculation to be safe. Always get a Pre-Ruling for chemical products.
π£ Immediate Action:
π Contact your customs broker with the SDS and Formula Breakdown.
π Verify HS Code 3824.40.10.00 vs 3824.40.50.00 to save 1.5% on every shipment!
β¨ Professional clearance starts with accurate classification!
πΌ Your profit margin depends on getting the HS Code right!
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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.