imidazolinone fungicide
CN → US| HS编码 | 关税税率 | 原产国 | 目的国 | 文档 |
|---|---|---|---|---|
| 2934991800 | 16.5% | CN | US | 官方文档 |
| 3802905000 | 39.8% | CN | US | 官方文档 |
| 2934107000 | 10.0% | CN | US | 官方文档 |
| 3802100050 | 39.8% | CN | US | 官方文档 |
| 3808993000 | 35.0% | CN | US | 官方文档 |
AI分析
🧪 Imidazolinone Fungicides: The Ultimate HS Code & Tariff Breakdown (2026)
🌐 HS Code Reference & Customs Clearance Guide | Latest Tariff Analysis | Professional Clearance Strategy
📌 I. Product Definition: What Exactly is "Imidazolinone" in Trade?
Imidazolinone fungicides are a class of heterocyclic organic compounds widely used in agriculture for their potent antimicrobial properties. In international trade, they are classified based on two distinct factors: 1. Chemical Structure: Whether they are considered pure chemical substances (Chapter 29). 2. End Use: Whether they are formulated as pesticides/fungicides ready for application (Chapter 38).
⚠️ Critical Distinction:
- If sold as a pure active ingredient (raw chemical) → Usually falls under Chapter 29 (Heterocyclic Compounds).
- If sold as a formulated product (mixed with carriers, solvents, or emulsifiers for direct use) → Falls under Chapter 38 (Miscellaneous Chemical Products).
- Misclassification Risk: Classifying a formulated product as a pure chemical (or vice versa) can lead to massive duty discrepancies, especially with current US-China trade tensions.
📦 II. HS Code Classification Details (Based on Provided Data)
Below is the detailed breakdown of the 5 possible HS Codes for Imidazolinone, derived from the provided dataset. Each code has a significantly different tax implication.
| HS Code | Summary Description | Total Tax Rate | Tax Detail Breakdown |
|---|---|---|---|
| 2934.99.18.00 | Heterocyclic Compound / Pesticide Use | 16.5% | Base: 6.5% + Section 122: 10% + Add'l: 0% |
| 3802.90.50.00 | Other Chemical Substances | 39.8% | Base: 4.8% + Section 301: 25% + Section 122: 10% |
| 2934.10.70.00 | Specific Chemical Structure / Fungicide | 10.0% | Base: 0.0% + Section 122: 10% + Add'l: 0% |
| 3802.10.00.50 | Chemical Active Ingredient / Raw Material | 39.8% | Base: 4.8% + Section 301: 25% + Section 122: 10% |
| 3808.99.30.00 | Fungicide Composition (Chemical Match) | 35.0% | Base: 0.0% + Section 301: 25% + Section 122: 10% |
🔍 Key Observation:
- The lowest tax rate (10.0%) applies if the product is classified as a specific chemical structure under 2934.10.70.00.
- The highest tax rates (39.8%) apply if classified as a generic chemical substance (3802.90.50.00) or active ingredient (3802.10.00.50) due to the combination of Base Tariff + Section 301 Tariff + Section 122 Tariff.
💰 III. Detailed Tariff Explanation (Section 122 vs. Section 301)
To understand why the taxes vary so drastically, we must break down the components mentioned in the data:
🎯 1. HS Code 2934.10.70.00 – The "Goldilocks" Zone (Lowest Tax)
| Item | Detail |
|---|---|
| Total Tax | 10.0% |
| Base Tariff | 0.0% |
| Additional Tariff (Section 301) | 0.0% |
| Section 122 Tariff | 10.0% |
| Why is this the best? | This code captures "Imidazolinone" as a specific chemical structure explicitly listed under Chapter 29. Because it is a precise chemical entry, it avoids the higher "Base Tariff" (4.8%) and the punitive Section 301 tariff (25%). Only the Section 122 tariff (10%) applies. |
| Legal Basis | Section 122: 10% applied to specific heterocyclic compounds. |
🎯 2. HS Code 2934.99.18.00 – Moderate Tax
| Item | Detail |
|---|---|
| Total Tax | 16.5% |
| Base Tariff | 6.5% |
| Additional Tariff (Section 301) | 0.0% |
| Section 122 Tariff | 10.0% |
| Why? | Classified under "Other heterocyclic compounds." It has a slightly higher Base Tariff (6.5%) than the specific subheading (0%), but still avoids Section 301. |
🎯 3. HS Code 3808.99.30.00 – Formulated Fungicide (Higher Tax)
| Item | Detail |
|---|---|
| Total Tax | 35.0% |
| Base Tariff | 0.0% |
| Additional Tariff (Section 301) | 25.0% |
| Section 122 Tariff | 10.0% |
| Why? | This is for formulated fungicides. While the Base Tariff is 0%, it attracts the heavy Section 301 tariff (25%) because it is considered a chemical product subject to trade restrictions, plus Section 122 (10%). |
🎯 4. HS Codes 3802.90.50.00 & 3802.10.00.50 – Highest Tax (Avoid If Possible)
| Item | Detail |
|---|---|
| Total Tax | 39.8% |
| Base Tariff | 4.8% |
| Additional Tariff (Section 301) | 25.0% |
| Section 122 Tariff | 10.0% |
| Why? | These codes classify Imidazolinone as a generic chemical substance or active ingredient under Chapter 38. This triggers ALL tariffs: Base (4.8%) + Section 301 (25%) + Section 122 (10%). This is the wor-case scenario. |
🛠️ IV. Customs Clearance Practical Advice
✅ 1. Preparation Checklist (Must-Haves)
| Document | Requirement | Purpose |
|---|---|---|
| Chemical Structure Diagram | ✔️ Must provide | To prove if it fits 2934.10.70.00 (specific structure) vs. generic categories. |
| Formula / Composition | ✔️ Critical | To distinguish between raw chemical (Ch 29) and formulated product (Ch 38). |
| MSDS (Material Safety Data Sheet) | ✔️ Required | Standard for chemical imports; helps customs verify classification. |
| Purity Certificate | ✔️ Required | High purity (>98%) supports Chapter 29 classification; low purity/formulated supports Chapter 38. |
| Commercial Invoice | ✔️ Accurate Description | Must clearly state: "Imidazolinone, [Specific Name], Purity [%], for Use as Fungicide" |
✅ 2. Classification Strategy (The "How-To")
🔥 Golden Rule: "Structure First, Use Second!"
| Scenario | Recommended HS Code | Tax Rate | Strategy |
|---|---|---|---|
| Pure Chemical Powder (High Purity, No Formulation) | 2934.10.70.00 | 10.0% | Best Choice. Argue that it is a specific heterocyclic compound. Provide structural proof. |
| Pure Chemical (Not Specifically Listed) | 2934.99.18.00 | 16.5% | Second Best. If structure doesn't fit 2934.10, use this "Other" category. |
| Formulated Fungicide (Mixed with Solvents/Carriers) | 3808.99.30.00 | 35.0% | Acceptable. If it's a ready-to-use spray, you must use Ch 38. No choice here. |
| Generic Chemical Substance | 3802.90.50.00 | 39.8% | AVOID. Do not use unless necessary. High tax due to Section 301 + Base Tariff. |
| Active Ingredient (Raw Material for Mix) | 3802.10.00.50 | 39.8% | AVOID. Same reason as above. High tax. |
✅ 3. Special Handling Tips
| Issue | Solution |
|---|---|
| Customs Questions Purity | Provide a Certificate of Analysis (COA) showing the chemical is not a mixture. |
| Section 122 Tariff Applicability | Ensure the product is not excluded from Section 122. Most fungicides are included. |
| Section 301 Exemption | Check if the specific HS Code is eligible for any exclusions. 2934.10.70.00 seems to have 0% Section 301, which is a huge advantage. |
| Documentation | Clearly mark: "Heterocyclic Compound, Not Formulated Pesticide" if using Ch 29 codes. |
🌍 V. Global Market Comparison (2026 Outlook)
| Market | HS Code Focus | Tax Implication | Note |
|---|---|---|---|
| 🇺🇸 USA | 2934.10.70.00 |
10.0% (Lowest) | Target this code! Avoids Section 301. |
| 🇺🇸 USA | 3808.99.30.00 |
35.0% (High) | For formulated products only. |
| 🇨🇳 China | Similar Codes | Varies | Domestic taxes may differ; focus on US export compliance. |
| 🇪🇺 EU | Ch 29/38 | Varies | EU does not have Section 122 or 301, but may have anti-dumping duties. |
📌 Conclusion for US Importers:
- Maximize Savings: Classify as 2934.10.70.00 if the product is a pure chemical.
- Save 29.8% compared to misclassification as3802.90.50.00.
- Save 25.0% compared to formulated product classification3808.99.30.00(if pure).
📌 VI. Common Mistakes & Pitfalls (Blood & Tears)
❌ Mistake 1: Calling a pure chemical "Fungicide Formulation"
👉 Result: Misclassified as 3808.99.30.00 → 35.0% tax instead of 10.0%.
👉 Fix: Be honest about formulation. If pure, declare as "Chemical Compound."
❌ Mistake 2: Using generic "Chemical Substance" codes (3802.xxxx) for a specific heterocyclic compound
👉 Result: Hits Section 301 (25%) + Base (4.8%) + Section 122 (10%) = 39.8%.
👉 Fix: Always check Chapter 29 first for specific chemical structures.
❌ Mistake 3: Ignoring Section 122
👉 Result: Underestimating costs. Even the "best" code (2934.10.70.00) has a 10% Section 122 tariff.
👉 Fix: Budget for 10.0% minimum for pure chemicals, 35.0% for formulated.
✅ Correct Declaration Example:
"Imidazolinone, Pure Chemical Compound, Heterocyclic Structure, Purity 99%, Not Formulated, HS: 2934.10.70.00"
🎯 VII. Conclusion: Professional Classification, Maximum Savings!
🎯 Remember the Strategy:
🔹 "Pure Chemical → Ch 29 → 10% Tax"
🔹 "Formulated Product → Ch 38 → 35% Tax"
🔹 "Avoid Generic Ch 38 Codes → 39.8% Tax Trap"
📌 Pro Tip:
If your product is a pure active ingredient, insist on 2934.10.70.00. This is the only code in the list that avoids the punitive Section 301 (25%) tariff. That’s a 29.8% savings on the total cost!
📣 Immediate Action:
📞 Contact your customs broker with the Chemical Structure Diagram.
📄 Request a Pre-Ruling for 2934.10.70.00 if applicable.
🚀 Secure the 10% Tax Rate and avoid the 39.8% trap!
✨ Precision Classification Saves You Thousands!
💼 Every Percent of Tariff is Profit Lost!
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关于 HS 编码归类
协调制度（HS）是由世界海关组织（WCO）制定的国际贸易商品分类标准。全球 200 多个国家采用 HS 系统作为海关关税、贸易统计和进出口监管的基础。
每个 HS 编码遵循以下层级结构：
- 章（2 位）——商品大类（例如：第 84 章：机器和机械设备）
- 品目（4 位）——章内的更具体分类
- 子目（6 位）——国际通用细分，所有 WCO 成员国统一使用
- 本国细分（8-10 位）——各国自行扩展的细分编码，如美国 HTSUS 10 位编码
正确的 HS 编码归类对于顺利通关、准确缴纳关税和遵守贸易法规至关重要。错误归类可能导致海关延误、多缴关税或罚款。
从CN进口到US时，适用的关税税率可能包括：
- 最惠国（MFN）税率——适用于 WTO 成员国的标准关税税率
- 普通税率——适用于无贸易协定国家
- 贸易救济关税——附加关税，如 301 条款（反倾销）、232 条款（国家安全）或反补贴税
本页内容仅供参考。如需正式归类，请咨询当地海关或持牌报关代理。