Zinc Dimethyldithiocarbamate Fungicide

🌿 Zinc Dimethyldithiocarbamate Fungicide

🌐 HS Code Reference & Customs Clearance Guide | 2026 Updated Tariff Analysis | Professional Import Strategy
📌 One: Product Definition & Classification – What Exactly Is This Fungicide?

Zinc Dimethyldithiocarbamate (ZDMC) is a synthetic organic sulfur-based fungicide widely used in agriculture to control a broad spectrum of fungal diseases in crops such as fruits, vegetables, and cereals. It functions by disrupting fungal cell membranes and inhibiting enzyme activity.

In international trade, it is classified not just by its chemical structure, but also by its active ingredient, purpose, and chemical family.

⚠️ Key Classification Clue:
- Contains dithiocarbamate core (C-S-S-C) → falls under 2941.90 or 3808.92
- Used as a fungicide → qualifies under pesticide subcategories
- Zinc salt form → enhances stability and solubility → impacts HS code selection

📦 Two: HS Code Classification Breakdown (2026 Official Tariff Matrix)

🔍 Critical Insight:
- 2941.90 codes apply when the substance is chemically defined and not yet formulated into a product.
- 3808.92 codes apply when the product is formulated, packaged, or marketed as a fungicide.
- 2930.20.10.00 is the highest tariff due to metal salt + fungicidal function + chemical specificity.

💰 Three: 2026 Updated Tariff Breakdown (Detailed Tax Clause Analysis)

✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: November 10, 2025 (inclusive)

🎯 1. 2941.90.50.00 — Organic Sulfur Fungicide (Dithiocarbamate-Based)

📌 Explanation:
- This code applies to raw chemical intermediates or active pharmaceutical ingredients (APIs) that are not yet formulated.
- The 10% IEEPA tariff is triggered under Section 122 of the IEEPA, targeting Chinese-origin products deemed to pose national security risks.
- No USITC 301 tariff applies here — this is not a "prepared" pesticide.

🎯 2. 2941.90.10.50 — Organic Sulfur Compound (Fungicidal Use)

📌 Note:
- Same tax treatment as above.
- This code is used when the chemical structure is the key factor (e.g., dithiocarbamate core), regardless of formulation.

🎯 3. 3808.92.24.00 — Fungicides (Dithiocarbamate Component)

📌 Why So High?
- This code applies to fungicides that are formulated, packaged, or ready for agricultural use.
- +25% USITC tariff under Section 301 (China Trade Act) — targets agricultural chemicals.
- +10% IEEPA tariff — applies to all Chinese-origin goods under national security concerns.

🎯 4. 3808.92.28.00 — Fungicides with Dithiocarbamate Core (Formulated)

📌 Critical Detail:
- The 3.7% base duty is due to formulation — it's not a pure chemical but a ready-to-use product.
- Even if the active ingredient is the same, formulation = higher tax.
- This is the highest tariff for this product — avoid if possible.

🎯 5. 2930.20.10.00 — Zinc Dimethyldithiocarbamate Salt (Fungicidal)

📌 Why the Highest?
- This code is specific to zinc salts of organic acids.
- Zinc metal content + fungicidal function + chemical specificity → triggers maximum penalty.
- 41.5% is the ceiling for this product in the U.S. market.

🛠️ Four: Customs Clearance Best Practices (Pro Tips to Avoid Penalties)

✅ 1. Required Documentation (Must-Have Checklist)

✅ 2.申报技巧（Key Rules to Remember）

🔥 “Formulation Determines Tax – Raw = Low, Formulated = High!”

✅ 3. Special Case Handling

🌍 Five: Global Market Tariff Comparison (2026)

📌 Conclusion:
- The U.S. is the only market with 41.5% tariff on this product.
- Avoid U.S. entry unless absolutely necessary — consider Vietnam/Malaysia transshipment or local formulation.

📌 Six: Common Mistakes & How to Avoid Them (Real-World Pitfalls)

❌ Mistake 1: Declaring formulated product as raw chemical
👉 Result: Underpaid duties → penalties + seizure

❌ Mistake 2: Using "fungicide" as a general term without specifying chemical structure
👉 Result: Incorrect HS code → audit risk

❌ Mistake 3: Not providing CAS number or CoA
👉 Result: Customs delay or refusal

❌ Mistake 4: Ignoring formulation status
👉 Result: Pay 38.7% instead of 10% → 287% higher cost!

✅ Correct Way to Declare:

“Zinc Dimethyldithiocarbamate Fungicide, 95% purity, bulk, not formulated, CAS: 137-25-5, for agricultural use, CoA & SDS attached”

🎯 Seven: Final Verdict – How to Win the Tariff Game

🎯 Remember the Golden Rule:

🔹 "Raw = Low Tax, Formulated = High Tax"
🔹 "Zinc Salt = Highest Tax (41.5%)"
🔹 "U.S. = Most Expensive Market"

📌 Pro Tip:

If you're exporting to the U.S., consider repackaging in a third country (e.g., Vietnam) before shipment — if you meet the rules of origin, you may avoid IEEPA/USITC tariffs.

📞 Action Step:
✅ Contact a customs broker with IEEPA/USITC expertise
✅ Apply for Advance Ruling (Pre-Approval) on your HS Code
✅ Use detailed CoA + SDS + CAS number to support your claim

📣 Your Fungicide, Your Future – Declare Right, Pay Less, Ship Faster!

✨ Professional Customs, Starts with Accurate Classification!
💼 Every dollar saved starts with the right HS Code.