Photosensitive Emulsion Additive
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3824992500 | 41.5% | CN | US | Official Doc |
| 3824992100 | 35.0% | CN | US | Official Doc |
| 3824810000 | 40.0% | CN | US | Official Doc |
| 3824997000 | 35.0% | CN | US | Official Doc |
| 8479820080 | 35.0% | CN | US | Official Doc |
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AI Analysis
π§ͺ Photosensitive Emulsion Additive (ζε δΉ³ζΆ²ζ·»ε ε)
π HS Code Classification & Customs Clearance Guide | 2026 Updated Tariff Analysis | Professional Entry Strategy
π I. Product Definition & Technical Context: What is it really?
Photosensitive Emulsion Additives are specialized chemical formulations used in the manufacturing of photolithographic plates, photographic films, PCB (Printed Circuit Board) photoresists, and optical coatings. These are not pure substances but complex chemical mixtures or preparations designed to modify the properties of emulsions (surfactants, penetrants, or dispersants).
In international trade, classification depends heavily on the specific function (surfactant vs. penetrant vs. dispersant) and the chemical composition of the additive. Misclassification often leads to significant tariff discrepancies due to US Section 301 and IEEPA tariffs.
β οΈ Key Distinction Point:
- Is it a surfactant (reducing surface tension)? β Likely 3824.99.25.00 or 3824.99.21.00.
- Is it a penetrant (aiding absorption)? β Likely 3824.81.00.00 or 3824.99.70.00.
- Is it a dispersant (stabilizing mixtures)? β Likely 8479.82.00.80.
π¦ II. HS Code Classification Matrix (2026 Authoritative Reference)
| HS Code | Product Description (English Summary) | Chemical Nature | Total Tax Rate* |
|---|---|---|---|
3824.99.25.00 |
Photosensitive emulsion surfactant; chemical mixture with photosensitive properties | Chemical Mixture | 41.5% |
3824.99.21.00 |
Photosensitive emulsion surfactant; chemical industry products and preparations | Chemical Preparation | 35.0% |
3824.81.00.00 |
Photosensitive emulsion penetrant; chemical preparation, industrial category | Chemical Preparation | 40.0% |
3824.99.70.00 |
Photosensitive emulsion penetrant; chemical preparation, industrial category | Chemical Preparation | 35.0% |
8479.82.00.80 |
Photosensitive emulsion dispersant; chemical auxiliary, aids emulsification process | Chemical Auxiliary | 35.0% |
π Critical Note:
-3824chapter covers "Chemical products and preparations of the chemical or allied industries (excluding those of division 1 to 6)."
-8479covers "Machinery and mechanical appliances having individual functions not specified or included elsewhere." Here, it applies to dispersants viewed as industrial auxiliaries for machinery/processes.
- Tax rates vary by 5-6% depending on the exact chemical definition (Surfactant vs. Penetrant) and duty structure.
*Total Tax Rate applies to US imports from China.
π° III. Detailed Tariff Breakdown (US Imports from China)
β Applicable Country: United States (US)
β Origin: China (CN)
β Effective Date: 2019β2026 (Continuous Section 301 & IEEPA regimes)
π― 1. Surfactants: The 3824.99.2x Series
A. 3824.99.25.00 β Photosensitive Emulsion Surfactant (Mixture)
| Item | Detail |
|---|---|
| Base Duty | 6.5% |
| Section 301 Additional Duty | 25.0% |
| IEEPA Additional Duty (Section 122/China-specific) | 10.0% |
| Total Rate | 41.5% |
| Calculation | CIF Value Γ 41.5% |
| De Minimis Exemption | β Not Eligible (Deny De Minimis for China goods under Section 321) |
| Legal Path | USITC:3824.99.25.00 β Section 301 Footnote β IEEPA China Proclamation |
π Explanation:
- If your product is a blend/mixture with distinct photosensitive properties, this is the most common classification for surfactants.
- The 6.5% base is higher than other subheadings, making the total impact significant.
B. 3824.99.21.00 β Photosensitive Emulsion Surfactant (Preparation)
| Item | Detail |
|---|---|
| Base Duty | 0.0% |
| Section 301 Additional Duty | 25.0% |
| IEEPA Additional Duty | 10.0% |
| Total Rate | 35.0% |
| Calculation | CIF Value Γ 35.0% |
| De Minimis Exemption | β Not Eligible |
| Legal Path | USITC:3824.99.21.00 β Section 301 Footnote β IEEPA China Proclamation |
π Explanation:
- If classified strictly as a "Chemical Industry Preparation" without the "mixture" label, the base duty is 0%.
- This results in a 6.5% savings compared to3824.99.25.00.
π― 2. Penetrants: The 3824.81 / 3824.99.70 Series
A. 3824.81.00.00 β Photosensitive Emulsion Penetrant
| Item | Detail |
|---|---|
| Base Duty | 5.0% |
| Section 301 Additional Duty | 25.0% |
| IEEPA Additional Duty | 10.0% |
| Total Rate | 40.0% |
| Calculation | CIF Value Γ 40.0% |
| De Minimis Exemption | β Not Eligible |
| Legal Path | USITC:3824.81.00.00 β Section 301 Footnote β IEEPA China Proclamation |
π Explanation:
- Penetrants are often classified under3824.81(Preparations for...) or3824.99.70.
- This classification carries a 5% base duty, which is higher than the 0% base for some surfactants.
B. 3824.99.70.00 β Photosensitive Emulsion Penetrant (Other)
| Item | Detail |
|---|---|
| Base Duty | 0.0% |
| Section 301 Additional Duty | 25.0% |
| IEEPA Additional Duty | 10.0% |
| Total Rate | 35.0% |
| Calculation | CIF Value Γ 35.0% |
| De Minimis Exemption | β Not Eligible |
| Legal Path | USITC:3824.99.70.00 β Section 301 Footnote β IEEPA China Proclamation |
π Explanation:
- If the penetrant is considered a generic "Other" chemical preparation, it benefits from the 0% base duty.
- Same total rate as3824.99.21.00(35%).
π― 3. Dispersants: The 8479 Series
C. 8479.82.00.80 β Photosensitive Emulsion Dispersant
| Item | Detail |
|---|---|
| Base Duty | 0.0% |
| Section 301 Additional Duty | 25.0% |
| IEEPA Additional Duty | 10.0% |
| Total Rate | 35.0% |
| Calculation | CIF Value Γ 35.0% |
| De Minimis Exemption | β Not Eligible |
| Legal Path | USITC:8479.82.00.80 β Section 301 Footnote β IEEPA China Proclamation |
π Explanation:
- Dispersants are sometimes argued as "Machinery Auxiliaries" rather than pure chemicals.
- If accepted under8479, it also results in a 35% total rate.
- Risk: Customs may dispute this classification and reclassify to3824if the product is clearly a chemical formulation.
π οΈ IV. Customs Clearance Practical Advice (Avoiding Pitfalls)
β 1. Documentation Checklist (Non-Negotiable)
| Document | Required? | Purpose |
|---|---|---|
| Safety Data Sheet (SDS) | βοΈ | Proves chemical nature; helps Customs distinguish between Surfactant/Penetrant/Dispersant. |
| Formula/Composition Breakdown | βοΈ | Essential for proving "Mixture" vs. "Preparation" to justify 0% vs. 5%/6.5% base duty. |
| Product Specification Sheet | βοΈ | Details "Photosensitive" properties to justify HS Code 3824 (Chemical Products). |
| Commercial Invoice | βοΈ | Must explicitly state: "Chemical Additive for Emulsion, Not for Consumer Use." |
| Certificate of Origin | βοΈ | Mandatory for Section 301/IEEPA assessment. |
| Third-Party Test Report | βοΈ | Confirms functional classification (e.g., surface tension reduction for surfactants). |
β 2. Classification Strategy (Key Mnemonic)
π₯ βSurfactant or Penetrant? Check the Base. Dispersant? Watch the Dispute.β
| Scenario | Recommended HS Code | Total Tax | Strategy |
|---|---|---|---|
| Pure Surfactant (Mixture) | 3824.99.25.00 |
41.5% | High base duty. Provide proof of "Mixture" nature. |
| Pure Surfactant (Prep) | 3824.99.21.00 |
35.0% | Optimal for Surfactants. Argue "Chemical Preparation." |
| Penetrant (Specific) | 3824.81.00.00 |
40.0% | Higher base. Only use if formula demands it. |
| Penetrant (Generic) | 3824.99.70.00 |
35.0% | Optimal for Penetrants. Argue "Other Preparation." |
| Dispersant | 8479.82.00.80 |
35.0% | Risky but viable. Must prove industrial machine auxiliary function. |
β 3. Special Case Handling
| Situation | Recommendation |
|---|---|
| Mixed Shipment (Surfactant + Penetrant) | Separate Line Items. Do not lump into one HS Code. Each attracts its own rate. |
| OEM/Contract Manufacturing | Provide the Formula Sheet provided by the US client. If the client specifies the HS Code, use it, but be prepared for CBP scrutiny. |
| "Trade Dress" Products | If the product is generic, describe it by function (e.g., "Chemical Emulsifier") rather than brand name to avoid confusion. |
| Small Sample Imports (<$800) | β NO DE MINIMIS. China-origin goods under Section 321 are explicitly excluded from de minimis relief since 2020/2023. Pay full duty. |
π V. Global Market Comparison (2026 Outlook)
| Market | Recommended HS Code | Estimated Duty | Certification | Notes |
|---|---|---|---|---|
| πΊπΈ USA | 3824.99.21.00 |
35.0% | None (Chemical) | High tariffs. SDS crucial. |
| πΊπΈ USA | 3824.99.25.00 |
41.5% | None (Chemical) | Avoid if possible. |
| π¨π³ China | 3824.99.99.90 |
~6-9% | None | Low import duty, no Section 301. |
| πͺπΊ EU | 3824.99.97 |
~6.5% | REACH Registration | REACH compliance is mandatory. |
| π―π΅ Japan | 3824.99.990 |
~6-8% | PRTR Act | Reporting requirements for chemicals. |
π Conclusion:
- The US market is the most expensive due to the 25% Section 301 + 10% IEEPAε ε .
- EU requires REACH registration before import, which is a huge compliance hurdle.
- China is a low-cost manufacturing base, so many US buyers source directly, facing the full brunt of US tariffs.
π VI. Common Errors & Pitfalls (Lessons Learned)
β Error 1: Declaring as "General Chemical" without specifying "Photosensitive"
π Consequence: Customs may classify it as a generic industrial chemical with a different (often higher) base duty or require extensive investigation.
β Error 2: Ignoring the "Mixture" vs. "Preparation" distinction
π Consequence: Missing the 6.5% saving between 3824.99.25.00 (41.5%) and 3824.99.21.00 (35.0%).
β Error 3: Assuming De Minimis applies to small shipments
π Consequence: Full 35-41.5% tax charged on packages under $800. This is a critical change in US law for China goods.
β Error 4: Using 8479 for pure chemicals without industrial machine context
π Consequence: CBP will reclassify to 3824 and issue a Supplemental Entry with back taxes and penalties.
β Correct Practice:
"Photosensitive Emulsion Surfactant, Chemical Preparation, HS Code 3824.99.21.00, Origin China, SDS Attached, For Industrial Use Only."
π― VII. Conclusion: Precision Saves Money!
π― Remember the Golden Rule:
πΉ "0% Base Duty is King: Aim for 3824.99.21.00 or 3824.99.70.00."
πΉ "Total 35% is the Target. Avoid the 41.5% Surfactant Trap."
πΉ "No De Minimis for China. Every Penny Counts."
π Pro Tip:
If you are importing large volumes, consider Advance Rulings (CBP Ruling Letter). Get a binding determination from US Customs on your specific formula to ensure 3824.99.21.00 applies. This protects you from audit penalties.
π£ Action Item:
π Contact Your Customs Broker Today with your SDS and Formula.
π Request an HS Code Pre-Ruling for your specific Photosensitive Emulsion Additive.
π Optimize Your Supply Chain to absorb or mitigate the 35%+ US Tariff burden.
β¨ Accurate Classification, Secure Entry, Maximized Profit!
πΌ In Chemical Trade, Details Determine Duty.
Customer Reviews
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.