异硫氰酸酯温室消毒剂
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3808922800 | 38.7% | CN | US | Official Doc |
| 3808922400 | 35.0% | CN | US | Official Doc |
| 3808922800 | 38.7% | CN | US | Official Doc |
| 3808922400 | 35.0% | CN | US | Official Doc |
| 3808922800 | 38.7% | CN | US | Official Doc |
AI Analysis
🌿 Greenhouse Sterilizer (Isothiocyanate)
🌐 HS Code Reference & Clearance Guide | 2026 Latest Tariff Analysis | Professional Customs Strategy
📌 1. Product Definition & Classification: Do You Really Understand "Isothiocyanate Greenhouse Sterilizer"?
Isothiocyanate greenhouse sterilizers are specialized chemical formulations used primarily in agricultural settings. They contain isothiocyanate components and serve dual purposes: sterilization (killing pathogens/pests) and disinfection (sanitizing the environment). In international trade, they are classified based on their primary function (whether they are deemed primarily "fungicides/bactericides" or "disinfectants") and their physical form (formulations).
⚠️ Critical Distinction:
- If the product is classified primarily as a Fungicide/Bactericide (biocidal action against plants/pathogens) → HS 3808.92.24.00
- If the product is classified primarily as a Disinfectant (sanitizing environment/surfaces) → HS 3808.92.28.00
📦 2. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
| HS Code | Product Description | Application Scenario | Primary Function | Tax Rate |
|---|---|---|---|---|
3808.92.24.00 |
Isothiocyanate Greenhouse Sterilizer, containing isothiocyanate components, for greenhouse disinfection, in formulation form. | Greenhouse environment disinfection, specific chemical classification. | Disinfection/Sterilization | 35.0% |
3808.92.28.00 |
Isothiocyanate Greenhouse Sterilizer, containing isothiocyanate components, for disinfection and bactericidal purposes, in formulation form. | General disinfection and sterilization, conforms to disinfectant classification definition. | Disinfection/Bactericidal | 38.7% |
3808.92.24.00 |
Isothiocyanate Fungicide Greenhouse Sterilizer, containing isothiocyanate components, combining both fungicidal and disinfectant uses. | 兼具杀菌与消毒用途 (Dual-purpose but classified under fungicide/sterilizer category). | Fungicide/Sterilizer | 35.0% |
3808.92.28.00 |
Isothiocyanate Fungicide Greenhouse Sterilizer, containing isothiocyanate components, meeting the definition of a disinfectant. | Complies with disinfectant classification definition. | Disinfectant | 38.7% |
3808.92.24.00 |
Isothiocyanate Greenhouse Sterilizer, clear ingredients, purpose for greenhouse environment disinfection, conforms to specific chemical classification. | Specific chemical classification, greenhouse use. | Disinfection | 35.0% |
🔍 Key Reminder:
- Both HS codes (3808.92.24.00and3808.92.28.00) fall under Chapter 38 (Miscellaneous Chemical Products), specifically heading 38.08 (Insecticides, rodenticides, fungicides, herbicides, anti-sprouting products and plant-growth regulators, disinfectants and similar products; retail packs). - The critical difference lies in the 8-digit subheading determination by customs, which hinges on the primary declared use and product labeling.
💰 3. 2026 Latest Tariff Rate Details (Including Surcharges & Policy Add-ons)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: From November 10, 2025 (including subsequent imports)
🎯 1. 3808.92.24.00 —— Isothiocyanate Greenhouse Sterilizer (Disinfection/Fungicide Focus)
| Item | Content |
|---|---|
| Base Tariff Rate | 0.0% (ad valorem) |
| Section 301 Surtax | +25.0% (USITC Footnote 9903.88.01) |
| Section 122 Surtax | +10.0% (Specific policy surcharge for this category) |
| Total Tariff Rate | 35.0% |
| Tax Calculation | CIF Value × 35.0% |
| De Minimis Exemption | ❌ Not Applicable (High tariff rates usually exclude de minimis benefits in practice for chemical agents, though policy varies; assume no exemption for safety/security reasons) |
| Legal Basis Path | Section 301: 9903.88.01 → Section 122: 10% Surtax → USITC: 3808.92.24.00 |
📌 Explanation:
- "Base Tariff 0%": General duty for many chemical preparations under 38.08. - "Section 301 Surtax 25%": Standard additional tariff on Chinese goods under US trade law. - "Section 122 Surtax 10%": Specific additional tariff applied to certain chemical products/disinfectants as per recent policy updates. - Total 35.0%: This is a significant cost factor. Must be calculated into CIF price.
🎯 2. 3808.92.28.00 —— Isothiocyanate Greenhouse Sterilizer (Disinfectant Classification)
| Item | Content |
|---|---|
| Base Tariff Rate | 3.7% (ad valorem) |
| Section 301 Surtax | +25.0% (USITC Footnote 9903.88.01) |
| Section 122 Surtax | +10.0% (Specific policy surcharge for this category) |
| Total Tariff Rate | 38.7% |
| Tax Calculation | CIF Value × 38.7% |
| De Minimis Exemption | ❌ Not Applicable |
| Legal Basis Path | Section 301: 9903.88.01 → Section 122: 10% Surtax → USITC: 3808.92.28.00 |
📌 Note:
- The base tariff is higher (3.7% vs 0%) for this subheading, leading to a 3.7% higher total tax compared to3808.92.24.00. - Both classifications incur the same Section 301 (25%) and Section 122 (10%) surcharges. - Key Decision Point: Choosing the wrong HS code can lead to underpayment (3.7% difference) if3808.92.28.00should be used, or potential penalties if3808.92.24.00is incorrectly applied to a product clearly defined as a disinfectant.
🛠️ 4. Clearance Practical Advice (实战避坑指南)
✅ 1. Preparation Material Checklist (Indispensable)
| Material | Required | Description |
|---|---|---|
| ✅ Product Specification Sheet | ✔️ | Must clearly state active ingredient (Isothiocyanate), concentration, and primary use (Disinfection vs. Fungicide). |
| ✅ Safety Data Sheet (SDS) | ✔️ | Critical for chemical clearance. Must align with HS code classification. |
| ✅ Product Photos (Label & Packaging) | ✔️ | Clear visibility of brand, model, and usage instructions. |
| ✅ Third-party Test Report | ✔️ | EPA registration (if applicable in US), efficacy test results proving disinfection or fungicidal properties. |
| ✅ Commercial Invoice | ✔️ | Explicitly state "Isothiocyanate Greenhouse Sterilizer" and the intended use. |
| ✅ Certificate of Origin (CO) | ✔️ | For origin determination. |
| ✅ Packing List | ✔️ | Detail net/gross weight, volume, and packaging type. |
✅ 2. Declaration Tips (Key Mantra)
🔥 "Define Primary Use, Match HS Code, Avoid Penalty!"
| Scenario | Correct Declaration | Incorrect Action |
|---|---|---|
| Primary function is disinfecting environment/surfaces | 3808.92.28.00 (38.7%) |
Misdeclare as 3808.92.24.00 (35.0%) → Underpayment + Penalty |
| Primary function is killing fungi/plant pathogens (Fungicide) | 3808.92.24.00 (35.0%) |
Misdeclare as 3808.92.28.00 (38.7%) → Overpayment (Minor issue, but still error) |
| Product has dual purpose (Fungicide + Disinfectant) | Consult Customs/Broker: Likely 3808.92.24.00 if fungicidal claim is stronger, or 3808.92.28.00 if disinfection claim is stronger. |
Vague declaration "Greenhouse Chemical" → Delay/Inspection |
✅ 3. Special Handling Cases
| Case | Handling Advice |
|---|---|
| Dual-Label Products | If packaging says "Fungicide & Disinfectant", provide evidence (e.g., EPA label) of primary claim. Usually, if it kills fungi, 3808.92.24.00 is safer if supported by tests. |
| Liquid vs. Solid | Ensure "Formulation" is stated. Both HS codes specify "in formulation form". If it's a pure chemical (not formulation), classification may differ (e.g., Chapter 29). |
| Origin Non-China | If originating from Vietnam/Mexico, Section 301 (25%) and Section 122 (10%) may not apply. Base tariff remains 0% or 3.7%. Total rate could be just 0% or 3.7%. |
🌍 5. Global Main Market Clearance Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff (China Origin) | Certification Requirement | Remarks |
|---|---|---|---|---|
| 🇺🇸 USA | 3808.92.24.00 or 3808.92.28.00 |
35.0% or 38.7% | EPA Registration (if pesticide/disinfectant claim) | High additional tariffs (301+122). |
| 🇨🇳 China | 3808.92.24.00 or 3808.92.28.00 |
Varies (Check local tariff) | Agricultural Chemical Registration | No US surcharges. |
| 🇪🇺 EU | 3808.92 (General) |
Varies (Often 0-6.5%) | BPR (Biocidal Products Regulation) | Strict biocide regulation. |
| 🇦🇺 Australia | 3808.92 |
Varies (Often 5%) | APVMA Approval | Requires local registration. |
📌 Conclusion:
- USA has the highest barrier due to Section 301 (25%) and Section 122 (10%) surcharges on Chinese-origin chemical products. - Tariff Difference:3808.92.28.00is 3.7% more expensive than3808.92.24.00. Ensure accurate classification to avoid underpayment penalties.
📌 6. Common Mistakes & Pitfalls Guide (Blood-Teaching Lessons)
❌ Mistake 1: Declaring as "General Chemical" without specifying Isothiocyanate or Use
👉 Consequence: Customs may classify under a higher tariff or demand additional documentation → Delay.
❌ Mistake 2: Using 3808.92.24.00 for a product clearly labeled as a "Surface Disinfectant" without fungicidal evidence
👉 Consequence: Underpayment of 3.7% → Penalty + Interest.
❌ Mistake 3: Ignoring Section 122 and 301 Surcharges
👉 Consequence: Profit margin erosion. 35%-38.7% is significant. Do not calculate based on base tariff alone.
❌ Mistake 4: Failing to provide EPA or equivalent efficacy test reports
👉 Consequence: Rejection at border if regulatory compliance is questioned.
✅ Correct Approach:
"Isothiocyanate Formulation, Greenhouse Sterilizer, Active Ingredient: Isothiocyanate X%, Use: Disinfection/Fungicide, Model: ABC, Origin: China, EPA Reg. No.: 12345-67"
🎯 7. Conclusion: Professional Declaration, Time-Saving, Cost-Effective!
🎯 Remember the Mantra:
🔹 "35% for Fungicide/Disinfection A, 38.7% for Disinfectant B. Don't miss the 3.7%, or pay the price!"
🔹 "Base Tariff + 25% (301) + 10% (122) = Total Cost. Calculate Before Shipping!"
📌 Tips:
If your product originates from Vietnam, Mexico, Thailand, or Malaysia, the 301 and 122 surcharges may NOT apply. The total tariff could be 0% (for
3808.92.24.00) or 3.7% (for3808.92.28.00).
Recommendation: Apply for a Pre-Ruling from US Customs if the product has dual functions, to ensure correct HS code selection and avoid penalties.
📣 Immediate Action:
📞 Contact a professional customs broker + Provide SDS + Apply for HS Code Pre-Ruling
🚀 Let your Greenhouse Sterilizer clear customs smoothly, efficiently, and profitably!
✨ Professional Clearance Starts with Accurate Classification!
💼 Your Every Penny Costs Deserve Precise Calculation!
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) — Broad category of goods (e.g., Chapter 84: Machinery and Mechanical Appliances)
- Heading (4 digits) — More specific grouping within the chapter
- Subheading (6 digits) — Internationally standardized breakdown, used by all WCO member countries
- National subdivisions (8-10 digits) — 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 — The standard duty rate applied to WTO members
- General rate — Applied to countries without trade agreements
- Trade remedy duties — 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.