Waste Dimethyl Sulfoxide Recycled Material
CN → US| HS编码 | 关税税率 | 原产国 | 目的国 | 文档 |
|---|---|---|---|---|
| 2902420000 | 35.0% | CN | US | 官方文档 |
| 3825490000 | 35.0% | CN | US | 官方文档 |
| 2902440000 | 35.0% | CN | US | 官方文档 |
| 3825410000 | 35.0% | CN | US | 官方文档 |
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AI分析
♻️ Waste Dimethyl Sulfoxide (DMSO) Recycled Material
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Entry Strategy
📌 I. Product Definition & Classification: Do You Really Understand "Waste DMSO"?
Dimethyl Sulfoxide (DMSO) is a potent polar aprotic solvent widely used in pharmaceuticals, chemical synthesis, and polymer processing. When referring to "Waste DMSO Recycled Material," it specifically denotes:
- Residual DMSO: Contaminated or spent solvent from industrial processes (chemical manufacturing, drug production, etc.).
- Recycled Form: The material has undergone some form of recovery or distillation but is classified as "waste" or "residue" under customs rules because it is not a primary, virgin chemical product.
⚠️ Key Distinction Point:
- If it is pure, virgin DMSO for chemical use → It falls under Chapter 29 (Organic Chemicals).
- If it is waste, residue, or recycled solvent → It falls under Chapter 38 (Miscellaneous Chemical Products), specifically waste solvents.
- "Recycled" does NOT mean "Virgin": In customs terminology, "recycled waste material" often triggers the "waste/residue" classification unless it meets strict purity standards for primary chemicals.
📦 II. HS Code Classification Details (2026 Latest Tariff Authority Mapping)
Based on the provided data, here are the matched HS Codes for Waste Dimethyl Sulfoxide Recycled Material:
| HS Code | Product Description | Matching Logic | Total Tax Rate |
|---|---|---|---|
| 2902.42.00.00 | Mixed Xylene Isomers | ❌ Mismatch Alert: The provided summary incorrectly links "Xylene" to DMSO. However, if the input was "Mixed Xylene," this applies. For DMSO, this is technically incorrect but listed in source data. | 35.0% |
| 3825.49.00.00 | Other waste organic solvents | ✅ Match: DMSO is an organic solvent. "Recycled material" from waste fits "waste/residue." Category: Other waste organic solvents. | 35.0% |
| 2902.44.00.00 | Mixed Xylene Isomers | ❌ Mismatch Alert: Similar to above, this summary references "Xylene." For DMSO, this is technically incorrect but listed in source data. | 35.0% |
| 3825.41.00.00 | Waste of halogenated organic solvents | ⚠️ Partial Match: DMSO is NOT halogenated. However, the source summary links "Waste DMSO" to this code under a general "organic solvent waste" logic. Caution: Technically DMSO is non-halogenated, so 3825.49 is more accurate. | 35.0% |
🔍 Critical Note on Source Data Discrepancy:
The provided<DATA>contains summaries that mention "Xylene" (二甲苯) while the user input is "Dimethyl Sulfoxide" (二甲基亚砜, DMSO).
- DMSO (C₂H₆OS) is chemically different from Xylene (C₈H₁₀).
- However, all codes in the source data result in the same tax rate (35.0%).
- Recommendation: For DMSO, the most chemically accurate code is 3825.49.00.00 (Waste organic solvents, other). The codes 2902.42 and 2902.44 are for Xylenes, not DMSO. Code 3825.41 is for Halogenated solvents (DMSO is not halogenated).
- Despite the chemical mismatch in the summaries, the tax outcome is identical. We will proceed with the 35.0% total tax as per the source data, but advise verifying the exact chemical identity for customs accuracy.
💰 III. 2026 Latest Tariff Rate Breakdown (Including Additional Taxes & Policies)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: From November 10, 2025 (including subsequent imports)
🎯 1. 3825.49.00.00 —— Waste Organic Solvents (Other)
(Most Chemically Accurate for DMSO Waste)
| Item | Content |
|---|---|
| Base Tax Rate | 0% (ad valorem) |
| USITC Additional Tax | +25% (From USITC Footnote 9903.88.01 / Section 301) |
| IEEPA Additional Tax | +10% (For Chinese/Hong Kong products, from Nov 10, 2025) |
| Total Tax Rate | 35.0% |
| Tax Calculation | CIF Value × 35% |
| De Minimis Exemption | ❌ Not Eligible (deny_de_minimis) |
| Legal Basis Path | IEEPA:9903.01.25 → IEEPA:9903.01.24 → USITC:3825.49.00.00 → FOOTNOTE:9903.88.01 |
📌 Explanation:
- "USITC Additional Tax 25%": From Section 301 of the U.S. Trade Act (targeting Chinese manufacturing).
- "IEEPA 10%": International Emergency Economic Powers Act tariffs on Chinese goods.
- Total 35% is a high tariff for chemical waste, significantly impacting profit margins.
🎯 2. 2902.42.00.00 & 2902.44.00.00 —— Mixed Xylene Isomers
(Listed in Source Data, but Chemically Mismatched for DMSO)
| Item | Content |
|---|---|
| Base Tax Rate | 0% |
| USITC Additional Tax | +25% |
| IEEPA Additional Tax | +10% |
| Total Tax Rate | 35.0% |
| Tax Calculation | CIF Value × 35% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Basis Path | Same as above |
📌 Note: Even though the summaries mention "Xylene," if your shipment is DMSO, declaring it as "Xylene" is misdeclaration. However, the tax burden is identical. Do not misdeclare chemistry! Use 3825.49.00.00 for DMSO waste.
🎯 3. 3825.41.00.00 —— Waste of Halogenated Organic Solvents
(Listed in Source Data, but Chemically Mismatched for DMSO)
| Item | Content |
|---|---|
| Base Tax Rate | 0% |
| USITC Additional Tax | +25% |
| IEEPA Additional Tax | +10% |
| Total Tax Rate | 35.0% |
| Tax Calculation | CIF Value × 35% |
| De Minimis Exemption | ❌ Not Eligible |
📌 Caution: DMSO is NOT halogenated. Classifying DMSO waste under halogenated solvents (3825.41) may trigger environmental inspections. 3825.49.00.00 is the safer, more accurate classification.
🛠️ IV. Customs Clearance Practical Advice (Combat Pitfalls)
✅ 1. Documentation Checklist (All Required)
| Document | Mandatory? | Description |
|---|---|---|
| ✅ MSDS / SDS | ✔️ YES | Must confirm DMSO content, purity, and that it is NOT hazardous waste under RCRA (unless specified). |
| ✅ Certificate of Analysis (COA) | ✔️ YES | Shows composition: % DMSO, % water, % impurities. Critical for classification. |
| ✅ Waste/Recycling Certificate | ✔️ YES | Proof that the material is "recycled" or "waste" from a specific industrial process. |
| ✅ Commercial Invoice | ✔️ YES | Clearly state: "Waste Dimethyl Sulfoxide (DMSO) - Recycled Solvent, Not for Food/Pharma Use." |
| ✅ Packing List | ✔️ YES | Detail net/gross weight, container types (drums, IBCs). |
| ✅ EPA Notification | ⚠️ Maybe | If classified as hazardous waste, EPA TSCA notification may be required. |
✅ 2. Declaration Tips (Key Mantras)
🔥 “Accurate Chemistry, No Mislabeling, DMSO is Non-Halogenated, Use 3825.49!”
| Scenario | Correct Declaration | Wrong Action |
|---|---|---|
| Waste DMSO (Recycled) | HS 3825.49.00.00 | Declare as "Xylene" (2902.42) → Illegal Misdeclaration |
| Virgin DMSO | HS 2911.00.00.00 (or similar) | Declare as "Waste" → Unnecessary 35% Tax |
| DMSO with High Halogen Impurities | HS 3825.41.00.00 (if halogenated) | Ignore halogen content → Environmental Penalties |
✅ 3. Special Case Handling
| Situation | Handling Advice |
|---|---|
| Is it Hazardous Waste? | If DMSO is contaminated with heavy metals or other hazardous substances, it may be classified as RCRA Hazardous Waste. Requires EPA notification and special permits. |
| High Purity (>99%)? | If recycled to virgin quality, it may qualify for Chapter 29 (Organic Chemicals), potentially lowering tariff, but requires strict COA proof. |
| Small Quantities (< $800) | ❌ No De Minimis Exemption for chemical waste from China. Tariffs apply from the first dollar. |
🌍 V. Global Market Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff | Certification | Remarks |
|---|---|---|---|---|
| 🇺🇸 USA | 3825.49.00.00 |
35% (China) | EPA TSCA, MSDS | High tariff, strict environmental checks. |
| 🇨🇳 China | 3825.49.00.00 |
~0-5% | N/A | No additional Section 301 taxes. |
| 🇪🇺 EU | 3825.49.00 |
~0% | REACH Registration | Requires REACH compliance for solvents. |
| 🇬🇧 UK | 3825.49.00 |
~0% | UK REACH | Post-Brexit regulations apply. |
📌 Conclusion:
- The USA imposes a 35% tariff on Chinese waste DMSO.
- EU/UK have lower tariffs but stricter REACH chemical registration requirements.
- Always verify if the DMSO is "Hazardous Waste" under local environmental laws.
📌 VI. Common Mistakes & Pitfalls (Lessons Learned)
❌ Mistake 1: Declaring DMSO Waste as "Xylene" (2902.42)
👉 Consequence: Illegal misdeclaration. Even if tax is similar, customs audits will find chemical mismatch → Fines + Seizure.
❌ Mistake 2: Ignoring Halogen Content
👉 Consequence: If halogenated impurities are present, classifying under 3825.49 (non-halogenated) instead of 3825.41 (halogenated) may lead to environmental violations.
❌ Mistake 3: Assuming "Recycled" = "Raw Material"
👉 Consequence: If it’s waste, it goes to Chapter 38. If you declare it as Chapter 29 (raw chemical), it’s misclassification → 35% penalty + back taxes.
✅ Correct Approach:
"Waste Dimethyl Sulfoxide (DMSO), Recycled Organic Solvent, Not for Human/Animal Consumption, CAS No. 67-68-5, Purity: XX%"
🎯 VII. Conclusion: Precision in Classification Saves Money & Avoids Penalties
🎯 Remember Mantras:
🔹 "Waste Solvent → Chapter 38, Not 29!"
🔹 "DMSO is NOT Halogenated → Use 3825.49!"
🔹 "35% Total Tax for USA Imports → Budget Accordingly!"
📌 Pro Tip:
If your DMSO is high-purity and intended for new chemical production, consider upgrading processing to meet Chapter 29 standards. This may allow reclassification to 2911.00 (Organic Chemicals), which might have lower tariffs (verify current Chapter 29 rates). Consult a customs broker for an Advance Ruling.
📣 Immediate Action:
📞 Contact a Licensed Customs Broker + Provide MSDS & COA + Request Advance Ruling
🚀 Ensure DMSO Waste is declared under 3825.49.00.00 to stay compliant and minimize risk.
✨ Professional Customs Clearance Starts with Accurate Classification!
💼 Every Dollar of Tariff Matters in Chemical Trade!
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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
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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。