Dithiocarbamate Fungicide

🌿 Dithiocarbamate Fungicide (Di-propyl Dithiocarbamate)

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

Dithiocarbamate fungicides are synthetic chemical compounds widely used in agriculture to protect crops from fungal diseases. The specific compound di-propyl dithiocarbamate is a sulfur-containing organic fungicide known for its broad-spectrum activity against pathogens like Pythium, Phytophthora, and Rhizoctonia.

In international trade, this chemical is not classified as a pharmaceutical or antibiotic, but rather as a specialized agricultural chemical due to its mode of action and chemical structure.

⚠️ Critical Distinction:
- If the product contains di-propyl dithiocarbamate as the active ingredient and is used exclusively for fungicidal purposes, it falls under chemical fungicide categories.
- It is not considered a "biological agent" or "antibiotic" despite some historical overlap in function.

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

🔍 Key Insight:
- The presence or absence of a metal ion (like Fe²⁺) determines whether it's classified under 2941.90 (organic) or 2833.29.51.90 (inorganic salt).
- Formulation matters: If the product includes solvents, emulsifiers, or stabilizers, it may be pushed into 3808.92.28.00 with higher tariffs.

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

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

🎯 1. 2941.90.50.00 — Di-propyl Dithiocarbamate Fungicide (Organic, Non-Metal)

📌 Explanation:
- Although no USITC 301 tariff applies here, the IEEPA 10% remains in force for all chemicals from China. - This is not a "biological" or "antibiotic" product, so it avoids the higher 25% USITC rate. - Still, 10% is non-negotiable for China-origin goods under IEEPA.

🎯 2. 2941.90.10.50 — Organic Sulfur Compound Fungicide

📌 Note:
- This code is identical in rate to the previous one. - The distinction lies in chemical structure: this one emphasizes the organic sulfur compound nature, which is still not subject to 301 tariffs.

🎯 3. 3808.92.24.00 — Fungicide with Dithiocarbamate Core (Formulated, Non-Metal)

📌 Critical Warning:
- This code triggers the full 25% USITC + 10% IEEPA = 35%. - Any formulation (even with 5% solvent) that is not pure chemical but labeled as "fungicide product" falls here. - This is the most dangerous HS Code for cost control.

🎯 4. 3808.92.28.00 — Formulated Fungicide with Dithiocarbamate Core

📌 Why Higher?
- The 3.7% base duty is added due to formulation complexity (e.g., emulsifiers, surfactants). - This is the highest tariff tier for this product. - Avoid this code if possible — it’s a cost trap.

🎯 5. 2833.29.51.90 — Iron Dithiocarbamate Fungicide (Metal Complex)

📌 Key Insight:
- If your product contains iron (Fe²⁺), it must be declared as a metal complex. - Even if the active ingredient is di-propyl dithiocarbamate, the presence of iron shifts it to inorganic sulfur compound category. - Same rate as 3808.92.28.00 — 38.7%.

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

✅ 1. Required Documentation (Must-Have Checklist)

✅ 2.申报技巧 (Smart Declaration Strategies)

🔥 “Pure = Lower Tax, Formulated = Higher Tax, Iron = Highest Tax!”

✅ 3. Special Cases & Solutions

🌍 Five: Global Market Tariff Comparison (2026)

📌 Insight:
- The U.S. is the only market with IEEPA + 301 tariffs on this chemical. - China and EU are much more favorable for pure forms.

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

❌ Mistake 1: Declaring iron-based fungicide as 2941.90.50.00
👉 Result: $10,000+ in back taxes + penalties — 38.7% vs 10% = 287% overpayment

❌ Mistake 2: Not disclosing metal content in SDS or invoice
👉 Result: Customs holds shipment, demands reclassification, delays 2–6 weeks

❌ Mistake 3: Assuming "formulated" product is still "pure chemical"
👉 Result: 35% tariff instead of 10% — massive cost overrun

✅ Correct Practice:

Use exact phrasing:
“Di-propyl dithiocarbamate fungicide, 98% pure, no metal ions, no solvents, for agricultural use”

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

🎯 Remember the Golden Rule:

🔹 “Pure = 10%, Formulated = 35–38.7%, Iron = 38.7%”
🔹 “If it’s not pure, it’s taxed like a product — not a chemical.”

🚨 Warning:
- No de minimis relief for this product in the U.S. — even $100 shipments pay full tariff. - IEEPA 10% applies to all China-origin chemicals, regardless of type.

📣 Take Immediate Action!

📞 Contact a customs broker with chemical expertise
📄 Submit product specs, CoA, and structure diagram for HS Code pre-ruling
🌐 Explore sourcing from Vietnam/Mexico to avoid IEEPA

✨ Pro Tip:

If you're producing this fungicide, consider reformulating to avoid metals and solvents — it could cut your U.S. tariff by 28.7%.

💼 Your product’s success depends on one thing: precise classification.
🚫 Don’t gamble on HS codes — get it right the first time.

📣 Ready to clear customs with confidence?

✅ Apply for an Advance Ruling (Pre-Approval)
✅ Use the correct HS Code from Day 1
✅ Save thousands in tariffs and avoid delays

🎯 Precision in Classification = Profit in Trade!
🚀 Let your fungicide go global — without the tax shock!