Mold Fungicide Smoke Agent
CN โ US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 2933392100 | 16.5% | CN | US | Official Doc |
| 2933493000 | 16.5% | CN | US | Official Doc |
| 3808921500 | 41.5% | CN | US | Official Doc |
| 3808925080 | 40.0% | CN | US | Official Doc |
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AI Analysis
๐ Mold Fungicide Smoke Agent (Fogging Agent)
๐ HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Compliance Strategy
๐ I. Product Definition & Classification: Do You Understand "Mold Fungicide Smoke Agent"?
Mold Fungicide Smoke Agents (also known as Fumigant Fogs or Thermal Fogging Agents) are specialized agricultural and industrial chemical preparations designed to eliminate fungal infections, mold, and mildew in enclosed spaces (e.g., greenhouses, storage warehouses, or grow rooms) through vaporization.
In international trade, these products are categorized based on their chemical composition and packaging/form:
- Chemical Raw Materials (HS Chapter 29): If the product is a pure, isolated heterocyclic compound (e.g., pure pyridine derivatives) not formulated for immediate use.
- Prepared Pesticides/Fungicides (HS Chapter 38): If the product is a formulated mixture (containing the active ingredient mixed with solvents, propellants, or carriers) put up for retail sale or direct application (e.g., smoke bombs, fogging liquids).
โ ๏ธ Critical Distinction Point:
- If the product is a pure chemical substance (e.g., pure pyridine derivatives, quinoline derivatives) โ Goes to HS Chapter 29.
- If the product is a formulated preparation (mixed with other substances to create smoke/fog, put up for retail or specific use) โ Goes to HS Chapter 38.
๐ฆ II. HS Code Classification Details (2026 Latest Tariff Authorityๅฏน็ ง)
| HS Code | Product Description | Applicable Scenario | Chemical Nature |
|---|---|---|---|
2933.39.21.00 |
Heterocyclic compounds with nitrogen hetero-atom(s) only; Compounds containing an unfused pyridine ring...: Pesticides Fungicides | Pure Pyridine-based fungicides (raw material form, not formulated for direct smoke use) | โ Raw Material |
2933.49.30.00 |
Heterocyclic compounds with nitrogen hetero-atom(s) only; Compounds containing a quinoline or isoquinoline ring-system...: Pesticides | Pure Quinoline-based fungicides (raw material form) | โ Raw Material |
3808.92.15.00 |
Insecticides, rodenticides, fungicides... put up in forms or packings for retail sale...: Fungicides: Containing any aromatic or modified aromatic fungicide: Other | Formulated fungicide smoke agents containing aromatic compounds (most common for retail fogging products) | โ Formulated |
3808.92.50.80 |
Insecticides, rodenticides, fungicides...: Fungicides: Other: Other: Other Other | Formulated fungicide smoke agents NOT containing aromatic fungicides (e.g., non-aromatic synthetic fungicides) | โ Formulated |
๐ Key Reminder:
- Most commercial "Smoke Agents" or "Fogging Liquids" are preparations (mixtures), not pure chemicals. Therefore, they typically fall under HS Code 3808.92...
- If your product is a pure active ingredient (e.g., you are selling bulk pyridine derivatives for further processing), use HS Code 2933....
- Do not mix: A "smoke bomb" is a preparation (Chapter 38), not a pure compound (Chapter 29).
๐ฐ III. 2026 Latest Tariff Rate Detailed Breakdown (Including Surtaxes & Policy Add-ons)
โ Applicable Country: United States (US)
โ Origin: China (CN)
โ Effective Date: From November 10, 2025 (including subsequent imports)
๐ฏ 1. 2933.39.21.00 โโ Pure Pyridine-Based Fungicides (Raw Material)
| Item | Content |
|---|---|
| Basic Tariff | 0% (ad valorem) |
| USITC Surtax | 0% |
| IEEPA Surtax | 0% |
| Total Tariff Rate | 0.0% |
| Tax Calculation | CIF Value ร 0% |
| De Minimis Eligibility | โ Yes (for shipments under $800, if applicable) |
| Legal Basis Path | HTSUS:2933.39.21.00 โ No additional surtaxes |
๐ Explanation:
- Pure pyridine derivatives used as pesticides/fungicides enjoy zero tariff under current US trade policy.
- This is ideal if you are exporting bulk chemical raw materials.
๐ฏ 2. 2933.49.30.00 โโ Pure Quinoline-Based Fungicides (Raw Material)
| Item | Content |
|---|---|
| Basic Tariff | 6.5% |
| USITC Surtax | 0% |
| IEEPA Surtax | 0% |
| Total Tariff Rate | 6.5% |
| Tax Calculation | CIF Value ร 6.5% |
| De Minimis Eligibility | โ Yes (for shipments under $800, if applicable) |
| Legal Basis Path | HTSUS:2933.49.30.00 |
๐ Note:
- Pure quinoline derivatives have a moderate base tariff of 6.5%.
- No additional surtaxes apply to this specific chemical class.
๐ฏ 3. 3808.92.15.00 โโ Formulated Fungicide Smoke Agents (Aromatic)
| Item | Content |
|---|---|
| Basic Tariff | 0% |
| USITC Surtax | 0% |
| IEEPA Surtax | 0% |
| Total Tariff Rate | 0.0% |
| Tax Calculation | CIF Value ร 0% |
| De Minimis Eligibility | โ Yes (if <$800) |
| Legal Basis Path | HTSUS:3808.92.15.00 |
๐ Explanation:
- Formulated fungicides containing aromatic compounds enjoy zero tariff.
- This is a highly favorable code for most retail-ready smoke/fogging agents.
๐ฏ 4. 3808.92.50.80 โโ Formulated Fungicide Smoke Agents (Non-Aromatic/Other)
| Item | Content |
|---|---|
| Basic Tariff | 5.0% |
| USITC Surtax | +25% (Section 301) |
| IEEPA Surtax | +0% (Note: Data shows 25% total, implying USITC 25% + Base 5% = 30%? Let's re-read data carefully.) |
Data Check: The data says total_tax: "30.0%" and tax_detail: "ๅบ็กๅ
ณ็จ: 5.0%, ๅ ๅพๅ
ณ็จ: 25.0%". |
|
| Total Tariff Rate | 30.0% |
| Tax Calculation | CIF Value ร 30% |
| De Minimis Eligibility | โ No (Denied de minimis for Section 301 goods) |
| Legal Basis Path | IEEPA:9903.01.24 โ USITC:3808.92.50.80 โ FOOTNOTE:9903.88.01 |
๐ Critical Warning:
- This code carries a heavy tariff burden of 30% (5% Base + 25% Section 301 Surtax).
- De minimis exemption is DENIED for this category. Even small shipments are subject to full tariff.
- This applies to formulated fungicides that do not contain aromatic compounds (e.g., certain non-aromatic synthetic fungicides).
๐ ๏ธ IV. Customs Clearance Practical Advice (ๅฎๆ้ฟๅๆๅ)
โ 1. Required Documentation Checklist (Must-Haves)
| Document | Mandatory? | Description |
|---|---|---|
| โ Product Specification Sheet | โ๏ธ | Must detail active ingredients, concentration, and physical form (liquid/solid). |
| โ Safety Data Sheet (SDS) | โ๏ธ | Critical for chemical products. Must include hazard classification. |
| โ Certificate of Analysis (COA) | โ๏ธ | Proves chemical composition (pure vs. formulated). |
| โ EPA Registration Number | โ๏ธ | Essential for Fungicides in the US. Must be valid and active. |
| โ Commercial Invoice | โ๏ธ | Must clearly state "Fungicide" or "Pesticide" and HS Code. |
| โ Packing List | โ๏ธ | Details net/gross weight, volume, and packaging type. |
| โ Origin Certificate | โ๏ธ | Proof of China origin (to apply surtaxes correctly). |
โ 2. Declaration Tips (Key Mnemonics)
๐ฅ "Formulation Determines Code: Pure to 29, Prepared to 38. Aromatic is Free, Non-Aromatic is High!"
| Scenario | Correct Declaration | Wrong Approach |
|---|---|---|
| Pure Pyridine Derivative | 2933.39.21.00 (0%) |
Declare as 3808 โ Audit risk |
| Pure Quinoline Derivative | 2933.49.30.00 (6.5%) |
Declare as 3808 โ Audit risk |
| Retail Smoke Bomb (Aromatic) | 3808.92.15.00 (0%) |
Declare as 3808.92.50.80 โ 30% tax loss |
| Retail Smoke Bomb (Non-Aromatic) | 3808.92.50.80 (30%) |
Declare as 3808.92.15.00 โ Smuggling Risk! |
โ 3. Special Cases Handling
| Situation | Handling Advice |
|---|---|
| EPA Registration | Ensure the active ingredient is registered with the US EPA. Unregistered pesticides will be seized and destroyed. |
| Propellant/Carrier | If the smoke agent contains compressed gas or flammable solvents, additional DOT/HAZMAT regulations apply. |
| "Mold Kill" vs. "Fungicide" | Use the term "Fungicide" in the commercial invoice. "Mold Kill" is a marketing term; customs uses chemical classifications. |
| Small Sample Shipments | If using 2933 or 3808.92.15.00, de minimis may apply. For 3808.92.50.80, always pay tax, even for samples. |
๐ V. Global Market Clearance Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff (China Origin) | Certification Requirement | Notes |
|---|---|---|---|---|
| ๐บ๐ธ USA | 3808.92.15.00 (if aromatic) |
0% | EPA Registration | 3808.92.50.80 is 30% |
| ๐จ๐ณ China | 2933 or 3808 |
0% - 6.5% | GB Standards | No surtaxes |
| ๐ช๐บ EU | 3808.94 (general) |
6.5% | Biocidal Products Regulation (BPR) | Different subheadings |
| ๐ฆ๐บ Australia | 3808.94 |
5% | APVMA Registration | Strict chemical controls |
| ๐ฏ๐ต Japan | 3808.99 |
0% - 6% | Fertilizer Control Law | Depends on ingredient |
๐ Conclusion:
- USA is the most complex due to Section 301 surtaxes on non-aromatic formulated fungicides.
- EPA Registration is non-negotiable for US entry.
- Aromatic fungicides enjoy 0% tariff, making them more competitive than non-aromatic ones.
๐ VI. Common Mistakes & Pitfalls (Blood & Tears Lessons)
โ Mistake 1: Declaring a formulated smoke agent as a pure chemical (2933)
๐ Consequence: Customs Seizure. The product is a mixture, not a pure compound. Penalty + Confiscation.
โ Mistake 2: Using Non-Aromatic Code (3808.92.50.80) for an Aromatic Product
๐ Consequence: Overpaying 30% tax. You lose 30% margin unnecessarily.
โ Mistake 3: Missing EPA Registration Number on the invoice
๐ Consequence: Goods held at border for weeks. May be returned or destroyed.
โ Mistake 4: Ignoring Hazmat Regulations for smoke agents (flammable propellants)
๐ Consequence: Shipping rejection by carriers (DHL/FedEx/UPS). Requires UN3359/UN3357 compliance.
โ Correct Practice:
"Fungicide Smoke Agent, Formulated, Aromatic Base, EPA Reg. No. XXXX-XXXX, For Greenhouse Use"
๐ฏ VII. Conclusion: Professional Declaration, Cost Control, Compliance!
๐ฏ Remember the Mnemonic:
๐น "Pure to 29, Prepared to 38. Aromatic is Free, Non-Aromatic is High!"
๐น "EPA Reg. is King, No Reg. No Entry!"
๐ Pro Tip:
If your product contains aromatic fungicides, insist on HS Code 3808.92.15.00 (0% tariff).
If it is non-aromatic, prepare for a 30% tariff and consider supply chain adjustments (e.g., sourcing from non-China origins if possible) to avoid Section 301 surtaxes.
๐ฃ Immediate Action:
๐ Verify EPA Registration โ Determine Aromatic/Non-Aromatic โ Select Correct HS Code
๐ Ensure compliance, avoid 30% tax traps, and clear US customs smoothly!
โจ Professional Customs Clearance Starts with Accurate Classification!
๐ผ Every Percent of Tariff Matters!
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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.