Slow release reducing agent for casting
CN โ US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3824999397 | 40.0% | CN | US | Official Doc |
| 3825610000 | 35.0% | CN | US | Official Doc |
| 3825690000 | 35.0% | CN | US | Official Doc |
| 3801300000 | 39.9% | CN | US | Official Doc |
| 3824999397 | 40.0% | CN | US | Official Doc |
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๐ญ Slow Release Reducing Agent for Casting (Industrial Chemicals)
๐ HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Entry Strategy
๐ I. Product Definition & Classification: What is "Slow Release Reducing Agent for Casting"?
A Slow Release Reducing Agent for Casting is a specialized chemical additive used in metallurgical casting processes (iron, steel, aluminum). Its primary function is to reduce iron oxides and improve the fluidity and surface finish of the cast metal by releasing reducing gases (like CO or Hโ) gradually during the mold heating phase.
In international trade, this product is typically classified under Chapter 38 (Miscellaneous Chemical Products). The exact HS Code depends on its chemical composition (organic vs. inorganic), physical state (powder, granule, paste), and whether it is considered a "waste" or a "pure chemical formulation."
โ ๏ธ Key Distinction Point:
- If the product is a synthetic chemical formulation designed for specific industrial use โ It falls under Heading 3824.
- If the product is classified as waste or contains significant organic by-products from industrial processes โ It may fall under Heading 3825.
- If it is carbon-based paste/powder for lining or electrodes โ It may fall under Heading 3801.
๐ฆ II. HS Code Classification Details (2026 Latest Tariff Authority)
Based on the provided data, here are the four most likely HS Codes for "Slow Release Reducing Agent for Casting," categorized by composition and use case.
| HS Code | Product Description | Use Case / Composition | Tax Detail Summary |
|---|---|---|---|
| 3824.99.93.97 | Casting Buffers/Agents, Chemical Preparations | Synthetic chemical additives for casting processes. Pure or formulated for industrial use. | Total Tax: 40.0% โข Base: 5.0% โข Additional: 25.0% โข Section 122: 10% |
| 3825.61.00.00 | Casting Buffers/Agents, Waste Containing Organics | Chemical/industrial waste containing organic components. | Total Tax: 35.0% โข Base: 0.0% โข Additional: 25.0% โข Section 122: 10% |
| 3825.69.00.00 | Casting Buffers/Agents, Other Auxiliaries | Other chemical industry auxiliary substances not specified elsewhere. | Total Tax: 35.0% โข Base: 0.0% โข Additional: 25.0% โข Section 122: 10% |
| 3801.30.00.00 | Casting Buffers/Agents, Carbonaceous Paste/Powder | Carbon-based pastes or powders used for furnace linings or electrodes. | Total Tax: 39.9% โข Base: 4.9% โข Additional: 25.0% โข Section 122: 10% |
๐ Critical Reminder:
- 3824.99.93.97 is the most common code for pure, formulated reducing agents. It carries the highest total tax (40%) due to the 5% base tariff. - 3825 Codes apply if the product is considered waste or by-product (even if functional). They have 0% base tariff but still incur 35% total. - 3801.30.00.00 applies only if the product is carbonaceous (coal, coke, graphite-based) and used for lining/electrodes, not just a general additive.
๐ฐ III. 2026 Latest Tariff Rate Breakdown (Including Surcharges)
โ Applicable Country: United States (US)
โ Origin: China (CN)
โ Effective Date: From November 10, 2025 (and subsequent imports)
๐ฏ 1. 3824.99.93.97 โ Synthetic Chemical Reducing Agents
| Item | Content |
|---|---|
| Base Tariff | 5.0% (ad valorem) |
| USITC Additional Tariff | +25% (Under USITC Footnote 9903.88.01 / Section 301) |
| IEEPA Additional Tariff | +10% (Under IEEPA Section 1702, targeting Chinese goods) |
| Total Tariff Rate | 40.0% |
| Tax Calculation | CIF Value ร 40% |
| De Minimis Exemption | โ Not Eligible (deny_de_minimis) |
| Legal Authority Path | IEEPA:9903.01.25 โ IEEPA:9903.01.24 โ USITC:3824.99.93.97 โ FOOTNOTE:9903.88.01 |
๐ Explanation:
- The 5% base is the standard MFN rate for miscellaneous chemical products.
- The 25% is the Section 301 penalty for Chinese-origin chemicals.
- The 10% is the IEEPA surcharge for strategic goods or specific categories from China.
- Total 40% is a high-cost barrier. Pre-clearance and accurate labeling are crucial.
๐ฏ 2. 3825.61.00.00 & 3825.69.00.00 โ Industrial Waste/By-Product Agents
| Item | Content |
|---|---|
| Base Tariff | 0.0% |
| USITC Additional Tariff | +25% |
| IEEPA Additional Tariff | +10% |
| Total Tariff Rate | 35.0% |
| Tax Calculation | CIF Value ร 35% |
| De Minimis Exemption | โ Not Eligible |
| Legal Authority Path | IEEPA:9903.01.24 โ USITC:3825.61.00.00 / 3825.69.00.00 โ FOOTNOTE:9903.88.01 |
๐ Note:
- These codes have 0% base tariff, making them 5% cheaper than the pure chemical code (3824).
- Risk: Customs may reclassify waste-derived products as pure chemicals (3824) if they appear to be manufactured products rather than waste. Ensure documentation supports "waste/by-product" status.
๐ฏ 3. 3801.30.00.00 โ Carbonaceous Paste/Powder for Linings
| Item | Content |
|---|---|
| Base Tariff | 4.9% |
| USITC Additional Tariff | +25% |
| IEEPA Additional Tariff | +10% |
| Total Tariff Rate | 39.9% |
| Tax Calculation | CIF Value ร 39.9% |
| De Minimis Exemption | โ Not Eligible |
| Legal Authority Path | IEEPA:9903.01.25 โ IEEPA:9903.01.24 โ USITC:3801.30.00.00 โ FOOTNOTE:9903.88.01 |
๐ Note:
- Only applicable if the product is carbon-based paste/powder used for furnace lining or electrodes.
- If used as a general reducing agent in the melt, this code may be incorrectly applied, leading to customs disputes.
๐ ๏ธ IV. Customs Clearance Practical Advice (Pitfall Avoidance Guide)
โ 1. Required Documentation Checklist
| Document | Mandatory | Description |
|---|---|---|
| โ Product Specification Sheet | โ๏ธ | Must detail: Chemical composition, release mechanism (slow-release), physical form (powder/granule), and CAS numbers. |
| โ Safety Data Sheet (SDS) | โ๏ธ | Required for all chemical imports. Must classify under GHS standards. |
| โ Certificate of Analysis (COA) | โ๏ธ | Proves purity and consistency, especially for 3824 classification. |
| โ Commercial Invoice | โ๏ธ | Must clearly state: "Slow Release Reducing Agent for Casting" and HS Code. |
| โ Bill of Lading | โ๏ธ | Ensure cargo description matches invoice. |
| โ Non-Dangerous Goods Certificate | โ ๏ธ | If applicable, to prove it is not classified as dangerous goods (DG) for shipping. |
โ 2. Declaration Tips (Key Mantras)
๐ฅ โComposition Dictates Code, Waste vs. Pure is the Core!โ
| Scenario | Correct Declaration | Wrong Practice |
|---|---|---|
| Pure Chemical Formulation | 3824.99.93.97Desc: "Synthetic Reducing Agent for Cast Iron" |
Misdeclare as "Fertilizer" or "Other Chemicals" โ High Risk |
| Waste/By-Product Type | 3825.61.00.00Desc: "Organic Industrial Waste, Used as Reducing Agent" |
Declare as "New Product" โ Customs may reclassify to 3824 (+5% tax) |
| Carbon Paste for Lining | 3801.30.00.00Desc: "Carbon Paste for Furnace Lining" |
Declare as "General Additive" โ Misclassification risk |
| Small Samples (Low Value) | No De Minimis | Assume < $800 is tax-free โ Penalties & Seizures! |
๐ Key Warning:
- Do NOT useDe Minimis(Section 321) for these items. All four codes havedeny_de_minimisstatus.
- Even small shipments (< $800) are subject to 35โ40% tax and full customs examination.
โ 3. Special Handling Advice
| Situation | Recommendation |
|---|---|
| OEM/Private Label | Provide supplier invoice and technical datasheet. Customs may request proof of manufacturing process. |
| Mixed Shipments | Do NOT mix casting agents with unrelated goods (e.g., tools, machinery). Keep HS codes separate in the entry. |
| Carbon-Based Products | If the product is >50% carbon, emphasize "Carbonaceous" in description to consider 3801. |
| Waste-Based Products | Provide evidence of waste origin (e.g., production by-product label) to support 3825. |
๐ V. Global Market Comparison (2026)
| Country/Region | Recommended HS Code | Tariff Rate (China Origin) | Certification | Notes |
|---|---|---|---|---|
| ๐บ๐ธ USA | 3824.99.93.97 |
40.0% (3824) 35.0% (3825) |
SDS, CPSIA (if consumer) | High Tariff: Section 301 + IEEPA apply. |
| ๐จ๐ณ China | 3824.99.93.97 |
~0โ7% | No special | Low import tariff, but environmental regulations strict. |
| ๐ช๐บ EU | 3824.99 |
~5.5% | REACH Registration | REACH Compliance is critical for chemical imports. |
| ๐ฎ๐ณ India | 3824.99 |
~10โ15% | BIS (if applicable) | Basic Customs Duty + Social Welfare Surcharge. |
๐ Conclusion:
- The US market is the most challenging due to the 40% total tariff.
- EU and China have lower base tariffs, but EU requires REACH registration, which is costly and time-consuming.
- Strategic Advice: For US imports, consider supply chain diversification (e.g., from Vietnam or Thailand) if possible, as IEEPA/Section 301 may have exemptions or different rates for non-China origins.
๐ VI. Common Mistakes & Pitfalls (Lessons Learned)
โ Mistake 1: Declaring as "Fertilizer" or "Soil Conditioner"
๐ Consequence: Customs rejects due to mismatched chemical profile โ Detention & Return.
โ Mistake 2: Ignoring IEEPA 10% Surcharge
๐ Consequence: Underpayment by 10% โ Back Taxes + Penalties.
โ Mistake 3: Assuming Small Shipments are Tax-Free
๐ Consequence: $800 De Minimis does NOT apply โ Full 40% tax collected upon entry.
โ Mistake 4: Misclassifying Waste as Pure Chemical
๐ Consequence: Overpayment of 5% base tariff. If proven waste, can apply for duty drawback.
โ Correct Practice:
โSlow-Release Carbon-Based Reducing Agent for Cast Iron, Powder Form, CAS #XXXX-XX-X, SDS Attached, For Industrial Use Onlyโ
๐ฏ VII. Conclusion: Precision Matters, Cost Optimization is Key!
๐ฏ Remember the Mantra:
๐น โCode 3824 is Pure (40%), Code 3825 is Waste (35%), Code 3801 is Carbon (39.9%).โ
๐น โNo De Minimis! Every Shipment Pays Tax!โ
๐น โPre-Clearance Saves Money, Misclassification Costs Time!โ
๐ Pro Tip:
If your reducing agent is originating from Vietnam, Mexico, or Thailand, you may avoid the 25% Section 301 and 10% IEEPA surcharges, lowering the total tax to just the base rate (0โ5%).
Recommendation: Apply for a Pre-Ruling (Advance Ruling) from CBP to confirm the correct HS Code and tax liability before shipment.
๐ฃ Immediate Action:
๐ Contact a Licensed Customs Broker + Provide SDS & Composition + Request Pre-Ruling
๐ Ensure Smooth Clearance, Avoid Delays, and Optimize Your Landing Cost!
โจ Professional Clearance Starts with Accurate Classification!
๐ผ Every Dollar Saved in Tariffs is Profit Added to Your Bottom Line!
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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) โ Broad category of goods (e.g., Chapter 84: Machinery and Mechanical Appliances)
- Heading (4 digits) โ More specific grouping within the chapter
- Subheading (6 digits) โ Internationally standardized breakdown, used by all WCO member countries
- National subdivisions (8-10 digits) โ 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 โ The standard duty rate applied to WTO members
- General rate โ Applied to countries without trade agreements
- Trade remedy duties โ 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.