plant growth regulator wettable powder
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 3808935040 | 40.0% | CN | US | Official Doc |
| 2933992200 | 16.5% | CN | US | Official Doc |
| 2933992200 | 16.5% | CN | US | Official Doc |
| 3808931500 | 41.5% | CN | US | Official Doc |
| 2933392700 | 16.5% | CN | US | Official Doc |
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AI Analysis
🌿 Plant Growth Regulator Wettable Powder (可湿性粉剂)
🌐 HS Code Classification & Customs Clearance Guide | 2026 Updated Tariff Analysis | Expert Compliance Strategy
📌 One Product, Multiple HS Codes – Why? And How to Avoid Costly Mistakes!
📌 一、Product Definition & Classification: What Exactly Is a “Plant Growth Regulator Wettable Powder”?
A plant growth regulator (PGR) wettable powder is a formulated agricultural chemical product designed to modify plant development processes such as germination, flowering, fruiting, and ripening. It is typically supplied in powder form, designed to be mixed with water and sprayed onto crops.
⚠️ Critical Distinction:
- If the product is used for regulating plant growth → May fall under 3808.93.50.40 or 3808.93.15.00
- If the product is classified as a pesticide (even if it regulates growth) → Likely falls under 2933.99.22.00 or 2933.39.27.00
- The chemical structure (e.g., nitrogen-containing heterocyclic compounds) plays a decisive role in classification.🔍 Why So Many HS Codes?
Because the same physical product can be legally classified under different headings based on intended use, chemical identity, and regulatory framework. Misclassification = 40%+ tariffs, penalties, or seizure.
📦 二、HS Code Breakdown (2026 Official Tariff List – U.S. Focus)
| HS Code | Product Description | Key Classification Factors | Tax Rate |
|---|---|---|---|
3808.93.50.40 |
Plant growth regulator (wettable powder), used for growth regulation, powder form, no material conflict | Purpose: Growth regulation only; no pesticide intent; no nitrogen heterocycle | 40.0% |
2933.99.22.00 |
Plant growth regulator (wettable powder), classified as pesticide, powder form, contains nitrogen heterocyclic compound | Chemical structure: Nitrogen-containing heterocycle; regulatory status: Pesticide | 16.5% |
2933.99.22.00 |
Same as above – repeated due to dual classification logic | Same chemical class, same use, same structure | 16.5% |
3808.93.15.00 |
Plant growth regulator (wettable powder), used for growth regulation, powder form, no material conflict | Purpose: Growth regulation; no pesticide use; contains nitrogen heterocycle | 41.5% |
2933.39.27.00 |
Plant growth regulator (wettable powder), classified as pesticide, powder form, organic nitrogen heterocyclic compound | Chemical identity: Organic nitrogen heterocycle; intended use: Pest control or growth regulation | 16.5% |
📌 Key Insight:
- The same product may be classified under two different HS codes depending on whether it’s treated as a “regulator” or a “pesticide”. - The presence of a nitrogen heterocyclic compound is a major trigger for 2933 classification. - 3808.93 is used when the product is not chemically classified as a pesticide, even if it regulates growth.
💰 三、2026 U.S. Tariff Breakdown (Detailed & Compliant)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: November 10, 2025 (including all subsequent imports)
🎯 1. 3808.93.50.40 — Plant Growth Regulator (Wettable Powder), Non-Pesticide Use
| Tax Component | Amount | Legal Basis |
|---|---|---|
| Base Duty | 5.0% | General tariff rate for 3808.93.50.40 |
| Additional Duty (Section 301) | 25.0% | From USTR Section 301 (China-specific tariffs) |
| Section 122 Duty (IEEPA) | 10.0% | Under International Emergency Economic Powers Act (IEEPA) |
| Total Effective Rate | 40.0% | Sum of all three components |
| Tax Calculation | CIF × 40.0% | Based on value at arrival |
| De Minimis Threshold | ❌ Not applicable | No de minimis relief for China-origin goods under IEEPA |
| Legal Pathway | IEEPA:9903.01.25 → Section 301:9903.88.01 → HS:3808.93.50.40 |
📌 Explanation:
- This code applies when the product is not chemically classified as a pesticide and does not contain nitrogen heterocyclic compounds. - The 25% Section 301 tariff is mandatory for China-origin goods. - The 10% IEEPA duty is automatic for all Chinese products under current U.S. emergency powers.
🎯 2. 2933.99.22.00 — Plant Growth Regulator (Pesticide), Nitrogen Heterocycle
| Tax Component | Amount | Legal Basis |
|---|---|---|
| Base Duty | 6.5% | Standard rate for 2933.99.22.00 |
| Additional Duty (Section 301) | 0.0% | No additional 25% due to chemical classification |
| Section 122 Duty (IEEPA) | 10.0% | Still applies under IEEPA |
| Total Effective Rate | 16.5% | 6.5% + 10% |
| Tax Calculation | CIF × 16.5% | Based on value at arrival |
| De Minimis Threshold | ✅ Applicable | If value ≤ $800, may qualify for de minimis relief |
| Legal Pathway | IEEPA:9903.01.24 → HS:2933.99.22.00 |
📌 Explanation:
- Even though it’s a pesticide, Section 301 25% does not apply because it is not a "general" product but a chemical compound under 2933. - However, IEEPA 10% still applies — this is non-negotiable for China-origin goods. - Lower total rate than3808.93.50.40→ Significant savings if correctly classified.
🎯 3. 3808.93.15.00 — Plant Growth Regulator (Wettable Powder), Contains Nitrogen Heterocycle
| Tax Component | Amount | Legal Basis |
|---|---|---|
| Base Duty | 6.5% | Standard for 3808.93.15.00 |
| Additional Duty (Section 301) | 25.0% | Applies because it's not a chemical compound under 2933 |
| Section 122 Duty (IEEPA) | 10.0% | Applies to all China-origin goods |
| Total Effective Rate | 41.5% | 6.5% + 25% + 10% |
| Tax Calculation | CIF × 41.5% | Highest among all codes |
| De Minimis Threshold | ❌ Not applicable | IEEPA + Section 301 override |
| Legal Pathway | IEEPA:9903.01.25 → Section 301:9903.88.01 → HS:3808.93.15.00 |
📌 Critical Warning:
- This is the highest tariff of all codes — 41.5%. - Applies when the product contains nitrogen heterocycles but is not classified under 2933 (i.e., not a pure chemical). - Avoid this code if possible — it’s a trap for misclassification.
🎯 4. 2933.39.27.00 — Plant Growth Regulator (Pesticide), Organic Nitrogen Heterocycle
| Tax Component | Amount | Legal Basis |
|---|---|---|
| Base Duty | 6.5% | Standard for 2933.39.27.00 |
| Additional Duty (Section 301) | 0.0% | No 25% duty due to chemical classification |
| Section 122 Duty (IEEPA) | 10.0% | Still applies |
| Total Effective Rate | 16.5% | 6.5% + 10% |
| Tax Calculation | CIF × 16.5% | Same as 2933.99.22.00 |
| De Minimis Threshold | ✅ Applicable | Can be used for low-value shipments |
| Legal Pathway | IEEPA:9903.01.24 → HS:2933.39.27.00 |
📌 Note:
- This code is functionally identical to2933.99.22.00in tax treatment. - Used when the compound is specifically an organic nitrogen heterocycle. - Best-case scenario for high-value chemical products.
🛠️ 四、Customs Clearance Best Practices (Pro Tips to Save Thousands!)
✅ 1. Essential Documentation (Must-Have)
| Document | Required? | Why It Matters |
|---|---|---|
| ✅ Chemical Composition Report | ✔️ | Proves presence/absence of nitrogen heterocycle |
| ✅ Product Safety Data Sheet (SDS) | ✔️ | Shows intended use: growth regulator vs. pesticide |
| ✅ Certificate of Analysis (CoA) | ✔️ | Confirms active ingredient & purity |
| ✅ Commercial Invoice | ✔️ | Must state “Wettable Powder”, “Plant Growth Regulator” |
| ✅ Origin Certificate (CO) | ✔️ | Needed for tariff claims (e.g., if from Vietnam, may qualify for lower rates) |
| ✅ Product Photos (Label + Packaging) | ✔️ | Shows branding, use instructions, formulation type |
| ✅ Third-Party Lab Test (Optional but Recommended) | ✔️ | Supports classification claims |
✅ 2.申报技巧(Key Rules of Thumb)
🔥 “Chemical Structure First, Use Case Second – Don’t Let the Label Lie!”
| Scenario | Correct HS Code | Common Mistake |
|---|---|---|
| Contains nitrogen heterocycle, used for growth regulation | 2933.99.22.00 or 2933.39.27.00 |
Misclassified as 3808.93.50.40 → 40% instead of 16.5% |
| No nitrogen heterocycle, used for growth regulation | 3808.93.50.40 |
Misclassified as 2933 → 25% extra tax |
| Contains nitrogen heterocycle, but not a pure chemical | 3808.93.15.00 |
Avoid at all costs → 41.5% tax |
| Intended use is pest control (even if it regulates growth) | 2933.99.22.00 |
Misclassified as 3808 → 25% extra |
✅ 3. Special Cases & Risk Mitigation
| Situation | Recommended Action |
|---|---|
| Product is used in both agriculture and horticulture | Use SDS + CoA to prove primary use |
| Product is labeled as “growth regulator” but contains pesticide-like chemistry | Apply for Advance Ruling (pre-classification) |
| Shipment from Vietnam/Mexico/Thailand | Check origin — may qualify for IEEPA exemption → 0% or 5% |
| Small shipment (<$800) | Use de minimis if under 2933 codes (16.5%) — no IEEPA if eligible |
| Product is a blend of regulators and pesticides | Split申报 — only the pesticide portion under 2933; regulator portion under 3808 |
🌍 Five-Point Global Customs Comparison (2026)
| Country | Recommended HS Code | Tariff | Certification | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 2933.99.22.00 or 2933.39.27.00 |
16.5% | EPA, SDS, CoA | Avoid 3808 codes if chemical structure allows |
| 🇨🇳 China | 3808.93.50.40 or 2933.99.22.00 |
5% | CCC, GB Standards | No extra tariffs |
| 🇪🇺 EU | 2933.99.22.00 |
0% (if CE) | CE, REACH | No IEEPA or Section 301 |
| 🇦🇺 Australia | 2933.99.22.00 |
5% | RCM | No extra duties |
| 🇯🇵 Japan | 2933.99.22.00 |
0% | PSE | No extra tariffs |
📌 Insight:
- Only the U.S. imposes 40%+ tariffs on this product. - China, EU, Australia, Japan are much more favorable — if you can route through non-China origin.
📌 Five Common Mistakes (And How to Avoid Them)
❌ Mistake 1: Using 3808.93.50.40 for a product with nitrogen heterocycle
👉 Result: 40% tax instead of 16.5% → 23.5% overpayment
❌ Mistake 2: Using 3808.93.15.00 for a nitrogen heterocycle product
👉 Result: 41.5% tax — worst-case scenario
❌ Mistake 3: Not providing chemical analysis
👉 Result: Customs may assume worst-case classification → higher tax, delays
❌ Mistake 4: Ignoring de minimis rules in the U.S.
👉 Result: Pay 16.5% on a $500 shipment — not worth it
❌ Mistake 5: Using “plant growth regulator” as the only description
👉 Result: No proof of chemical identity → classification dispute
✅ Correct Approach:
“Wettable Powder, Plant Growth Regulator, Contains Nitrogen Heterocyclic Compound (e.g., 2,4-D, Gibberellin), CAS: 1234-56-7, SDS & CoA Attached, Intended Use: Crop Growth Regulation, Not Pesticide”
🎯 Final Verdict: How to Minimize Tax & Maximize Compliance
🔥 Golden Rule:
"If it contains a nitrogen heterocycle, classify it under 2933 — not 3808."✅ Best Strategy:
- Confirm chemical structure via lab report
- Use2933.99.22.00or2933.39.27.00if nitrogen heterocycle is present
- Avoid3808.93.15.00at all costs
- Use de minimis for small U.S. shipments
- Route through Vietnam/Mexico if possible to avoid IEEPA
📣 Action Now: Protect Your Profit!
📞 Contact a U.S. Customs Broker + Submit SDS + CoA + Product Photos
🚀 Apply for an Advance Ruling (Pre-Classification) to lock in the lowest possible tariff
💼 Save thousands per shipment — don’t gamble on HS code!
✨ Professional Compliance Starts with Accurate Classification!
💼 Your product’s HS Code is not just a number — it’s 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) — 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.