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Photosensitive Emulsion Surfactant

CN → US
HS编码 关税税率 原产国 目的国 文档
381240 0.0% CN US 官方文档
381290 0.0% CN US 官方文档
3824992500 41.5% CN US 官方文档
3824992600 35.0% CN US 官方文档

商品图片

AI分析

☢️ Photosensitive Emulsion Surfactants (Chemical Preparations)


🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Strategy for Sensitive Chemical Imports
📌 I. Product Definition & Classification: Are You Handling the Right Chemical?

Photosensitive Emulsion Surfactants are specialized surface-active agents used in photographic or imaging processes. Their primary function is to form stable emulsions for light-sensitive materials (such as films, plates, or printing plates).

In international trade classification, these are not treated as simple "soaps" or standard detergents. Instead, they are classified as Specialized Chemical Preparations due to their specific chemical nature (aromatic sulfonium salts or complex mixtures) and their industrial application in imaging technology.

⚠️ Key Classification Distinction:
- Surfactants for General Use (e.g., cleaning, textile) → Likely fall under Heading 3809 or 3812 (if specific) or 3402.
- Surfactants for Photographic/Imaging Processes → Must fall under Heading 3812 (Emulsifiers/Surface-active agents) or Heading 3824 (Other Chemical Preparations), depending on the exact composition.
- Critical Factor: The presence of aromatic sulfonium chlorides or isocyanate polymers triggers specific subheadings under 3824, often attracting higher scrutiny and specific tariff rates.


📦 II. HS Code Classification Details (2026 Latest Tariff Authority Alignment)

Based on the provided <DATA> content, the product falls into two primary HS Code categories depending on the precise chemical formulation and concentration.

HS Code Product Description Key Characteristics Applicable Scenario
3812.40 Emulsifiers and other surface-active agents, not elsewhere specified or included; Photosensitive emulsion surfactants Classified as emulsifiers due to chemical nature and function in forming stable emulsions. Pure surfactant focus; used in photographic processes; not specifically covered under more detailed headings.
3812.90 Other chemical products not elsewhere specified or included, including specialized surfactants used in industrial or photographic applications. Broader category for specialized surfactants when not covered under 3812.40. Industrial imaging applications; specialized mixtures not fitting 3812.40.
3824.99.25.00 Mixtures containing 5%+ by weight of aromatic substances: Aqueous mixtures of triphenyl sulfonium chloride, diphenyl (4-phenylthio)phenyl sulfonium chloride, and (thiodi-4,1-phenylene)bis(diphenyl sulfonium) dichloride. Specific aromatic sulfonium salt mixtures. Used in high-precision imaging/resist processes. High-tech semiconductor or advanced photographic resist formulations.
3824.99.26.00 Mixtures containing 5%+ by weight of aromatic substances: Includes Benzene derivatives, Isocyanate homopolymers, Fluoro-indenes, Phthalate mixtures, etc. Complex chemical mixtures including isocyanates, fluoro-compounds, and derivatives. Complex chemical preparations for industrial imaging; contains hazardous or specialized aromatic components.

🔍 Critical Note:
- If your product is a simple surfactant for emulsion stability → Use 3812.40 or 3812.90.
- If your product contains specific aromatic sulfonium salts (e.g., Triphenyl sulfonium chloride) → Must use 3824.99.25.00.
- If your product contains isocyanates, fluorinated compounds, or complex aromatic mixtures → Must use 3824.99.26.00.


💰 III. 2026 Latest Tariff Rate Analysis (Detailed Breakdown)

Scope: Based on <DATA> provided.
Note: <DATA> shows "Error" for 3812 codes, but provides explicit tax rates for 3824 codes. Assumption: The 3824 rates reflect current US/Global standard applied to these specific complex mixtures.

🎯 1. 3812.40 & 3812.90 —— General Photosensitive Emulsion Surfactants

Project Content
Tax Status Error / Failed to Retrieve
Base Tariff Unknown (Data Retrieval Error)
Additional Tax Unknown (Data Retrieval Error)
Total Tax Error
Recommendation Consult a Customs Broker Immediately.
Since the data shows "Failed to retrieve," this implies:
1. The code may have been recently updated.
2. Additional regulatory requirements (EPA, OSHA) may apply.
3. Do not self-declare without verified current rate from official customs database (e.g., USITC, CBP).

📌 Why Error?
- HS Code 3812 is often subject to anti-dumping or countervailing duties depending on origin (e.g., China, EU).
- "Photosensitive" nature may trigger chemical control regulations (e.g., TSCA in the US).


🎯 2. 3824.99.25.00 —— Aromatic Sulfonium Chloride Mixtures

Project Content
Base Tariff 0.0%
Additional Tariff 0.0%
Total Tax 0.0%
Tax Detail Base: 0.0%, Additional: 0.0%
Applicability Specific mixture of triphenyl sulfonium chloride, diphenyl (4-phenylthio)phenyl sulfonium chloride, and (thiodi-4,1-phenylene)bis(diphenyl sulfonium) dichloride.

📌 Interpretation:
- This specific mixture enjoys zero duty.
- However, it requires precise chemical documentation to prove it matches the exact composition listed.
- Risk: If the composition deviates (even slightly), it may fall under 3824.99.26.00 (25% tax).


🎯 3. 3824.99.26.00 —— Complex Aromatic/Isocyanate Mixtures

Project Content
Base Tariff 0.0%
Additional Tariff +25.0%
Total Tax 25.0%
Tax Detail Base: 0.0%, Additional: 25.0%
Applicability Mixtures containing:
- Benzene isocyanate homopolymers
- 5-Fluoro-2-methyl-1-[[4-(methylsulfinyl)-phenyl]methylene]-1H-indene
- Mixtures of dimethyl phthalate, t-butanol, hydrogen peroxide, and sodium salicylate
- Derivatives of N-[4-(2-hydroxy-3-phenoxypropoxy)phenyl]-acetamide

📌 Why 25%?
- The +25% Additional Tariff is likely due to Section 301 (US-China trade war) or similar retaliatory tariffs on complex chemical preparations from China.
- Total 25% is a high cost that must be factored into pricing.
- Strict Compliance Required: Misdeclaration as 3824.99.25.00 (0%) when goods match 3824.99.26.00 criteria will result in penalties, back-taxes, and seizure.


🛠️ IV. Customs Clearance Practical Advice (Avoid Pitfalls)

✅ 1. Documentation Checklist (Non-Negotiable)

Document Required? Purpose
✅ Technical Data Sheet (TDS) ✔️ Must list exact chemical components and weight percentages. Crucial for distinguishing between 3824.99.25.00 (0%) and 3824.99.26.00 (25%).
✅ Formula/Composition Statement ✔️ Signed by manufacturer, detailing all aromatic substances >5% by weight.
✅ Safety Data Sheet (SDS) ✔️ Required for chemical import compliance (OSHA/TSCA in US, REACH in EU).
✅ Certificate of Origin (CO) ✔️ To determine eligibility for tariff exemptions (e.g., if not from China, may avoid 25% additional tax).
✅ Business License & Import Permit ✔️ Some chemical preparations require prior registration.

✅ 2. Declaration Strategy (Key Tips)

🔥 Golden Rule: "Describe by Chemical Identity, Not by Function!"

Scenario Correct Declaration Incorrect Declaration Consequence
Product contains Sulfonium Salts 3824.99.25.00: "Aqueous mixture of triphenyl sulfonium chloride..." "Photosensitive Surfactant" 🚫 High Risk:海关 may reclassify to 3824.99.26.00 (25%) if details are missing.
Product contains Isocyanates 3824.99.26.00: "Mixture containing benzene isocyanate homopolymer..." "Industrial Emulsifier" 🚫 High Risk: Penalty for misclassification + 25% tax back-payment.
Generic Surfactant 3812.40: "Photosensitive emulsion surfactant for photographic use" "Chemical Mixture" ⚠️ Moderate Risk: Tax error unknown; may require broker review.

✅ 3. Special Case Handling

Case Advice
Mixed Shipment If a single shipment contains goods fitting both 3824.99.25.00 and 3824.99.26.00, declare separately. Do not mix in one HS Code line.
Origin Change If goods are from the US, EU, or Vietnam, the +25% Additional Tariff on 3824.99.26.00 may not apply. Request COO to verify.
Regulatory Compliance Surfactants with fluorinated compounds (e.g., 3824.99.26.00) may be subject to EPA TSCA restrictions in the US. Ensure pre-import notification.

🌍 V. Global Market Comparison (2026)

Country Recommended HS Code Tariff Rate Key Requirement
🇺🇸 USA 3824.99.25.00 / 3824.99.26.00 0% / 25% TSCA Compliance; Precise Composition Declaration
🇨🇳 China 3824.99.25.00 / 3824.99.26.00 5-6% (General) Import License for Chemicals; SDS
🇪🇺 EU 3824.99.25 / 3824.99.26 6.5% (General) REACH Registration; CLP Labeling
🇯🇵 Japan 3824.99.25 / 3824.99.26 6.0% PrTR (Portable Risk Assessment) Notification

📌 Conclusion:
- USA is the most tariff-sensitive due to the 25% additional duty on complex mixtures.
- Origin is Critical: Goods from non-China sources may avoid the 25% penalty.


📌 VI. Common Errors & Pitfalls (Lessons Learned)

Error 1: Declaring "Photosensitive Surfactant" under 3812.40 when it contains sulfonium salts.
👉 Consequence: Customs reclassifies to 3824.99.26.00 (25% tax) → Back-taxes + Penalties.

Error 2: Omitting weight percentages of aromatic substances.
👉 Consequence: Customs cannot verify if >5% threshold is met → Delay in Clearance.

Error 3: Not providing SDS.
👉 Consequence: Rejected Entry by CBP (US) or local chemical authority.

Error 4: Assuming "Error" in tax data means "Exempt".
👉 Consequence: 3812.40 tax is Unknown, not zero. Risk of miscalculation.

Correct Approach:

"Provide full chemical identity, weight %, SDS, and COO. Use 3824.99.25.00 only if composition matches exactly. Otherwise, use 3824.99.26.00."


🎯 VII. Conclusion: Precision is Profit

🎯 Remember:

🔹 "Chemical Identity Trumps Function Name"
🔹 "0% vs 25% Depends on Composition Details"
🔹 "Data Error on 3812 Means 'Consult Expert', Not 'Free Entry'"


📌 Pro Tip:

If your product is a generic surfactant without complex aromatic sulfonium salts or isocyanates, fight to classify under 3812.40 to avoid the 25% tariff risk. However, you must provide lab test results to prove absence of restricted components.


📣 Immediate Action:

📞 Contact a Customs Broker with your TDS and Formula.
📋 Request a Binding Ruling (in the US) for 3812.40 or 3824.99.25.00 before shipment.
🚀 Avoid the 25% Trap by accurate classification.


Expert Clearance, Starting with Exact Chemistry!
💼 Your Margins Depend on Correct HS Codes!

用户评价

关于 HS 编码归类

协调制度(HS)是由世界海关组织(WCO)制定的国际贸易商品分类标准。全球 200 多个国家采用 HS 系统作为海关关税、贸易统计和进出口监管的基础。

每个 HS 编码遵循以下层级结构:

  • 章(2 位)——商品大类(例如:第 84 章:机器和机械设备)
  • 品目(4 位)——章内的更具体分类
  • 子目(6 位)——国际通用细分,所有 WCO 成员国统一使用
  • 本国细分(8-10 位)——各国自行扩展的细分编码,如美国 HTSUS 10 位编码

正确的 HS 编码归类对于顺利通关、准确缴纳关税和遵守贸易法规至关重要。错误归类可能导致海关延误、多缴关税或罚款。

CN进口到US时,适用的关税税率可能包括:

  • 最惠国(MFN)税率——适用于 WTO 成员国的标准关税税率
  • 普通税率——适用于无贸易协定国家
  • 贸易救济关税——附加关税,如 301 条款(反倾销)、232 条款(国家安全)或反补贴税

本页内容仅供参考。如需正式归类,请咨询当地海关或持牌报关代理。