Organic Synthesis Intermediate Mixture
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 2905591000 | 40.5% | CN | US | Official Doc |
| 2905593000 | 35.0% | CN | US | Official Doc |
| 2932999010 | 13.7% | CN | US | Official Doc |
| 2932999090 | 13.7% | CN | US | Official Doc |
| 293399 | 0.0% | CN | US | Official Doc |
| 290000 | 0.0% | CN | US | Official Doc |
| 3824992600 | 35.0% | CN | US | Official Doc |
| 3824992900 | 41.5% | CN | US | Official Doc |
| 293399 | 0.0% | CN | US | Official Doc |
| 290000 | 0.0% | CN | US | Official Doc |
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π§ͺ Organic Synthesis Intermediate Mixture
π HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Trade Compliance Strategy
π I. Product Definition & Classification: What Exactly is an "Organic Synthesis Intermediate Mixture"?
In the international chemical trade, an "Organic Synthesis Intermediate Mixture" is not a single, defined chemical entity but a blend of chemical compounds specifically formulated or encountered as by-products/residues used to facilitate further organic synthesis.
Because "mixture" is a generic term, customs authorities strictly look at the chemical composition and specific constituents to determine the correct HS Code. Misclassification here is common and risky, leading to significant duty discrepancies.
β οΈ Critical Distinction Point:
- Is it a pure specific chemical? β Classify under the specific chemical heading (e.g.,2905,2932).
- Is it a generic mixture of unknown/specific intermediates? β Classify under "Not Elsewhere Specified" (NES) headings like2933or2900.
- Is it a preparation with a specific function (e.g., binding, catalyst)? β Might fall under Chapter 38 (3824).
π¦ II. HS Code Classification Details (2026 Latest Tariff Authority Mapping)
Based on the provided data, here are the applicable HS Codes for organic intermediates and related chemical preparations:
| HS Code | Product Description | Applicable Scenario | Tax Status |
|---|---|---|---|
2933.99 |
Other organic chemicals, not elsewhere specified or included, used as intermediates in the manufacture of organic chemicals, including mixtures of such intermediates. | Generic Mixture: A blend of intermediates that do not fit into more specific subheadings (e.g., complex mixtures of heterocyclic compounds). | β Error: Failed to retrieve tax information |
2900.00 |
Organic chemicals, not elsewhere specified or included, including mixtures of organic chemicals used as intermediates in organic synthesis. | General NES Mixture: A broad category for organic chemical mixtures used in synthesis where no more specific heading applies. | β Error: Failed to retrieve tax information |
2905.59.10.00 |
Derivatives of monohydric alcohols (Halogenated, sulfonated, nitrated, or nitrosated). | Specific Monohydric Derivative: If the mixture is primarily composed of derivatives of simple monohydric alcohols. | β 0.0% |
2905.59.30.00 |
Dibromoneopentylglycol (Specific derivative of acyclic alcohol). | Specific Dibromoneopentylglycol: If the mixture is predominantly or exclusively this specific compound. | β 25.0% |
2932.99.90.10 |
Glucosamine and its salts and esters (Heterocyclic compounds with oxygen hetero-atoms). | Sugar/Amino-Sugar Intermediate: If the mixture contains significant amounts of Glucosamine derivatives. | β 3.7% |
2932.99.90.90 |
Other Heterocyclic compounds with oxygen hetero-atoms only (Other/Other). | Generic Heterocyclic Mix: Mixtures of oxygen-heterocyclic intermediates not specified elsewhere. | β 0.0% |
3824.99.26.00 |
Mixtures containing β₯5% aromatic/modifies aromatic substances (Specific listed mixtures). | Special Aromatic Preparation: Highly specific industrial mixtures (e.g., containing specific isocyanate homopolymers or fluoro-indenes). | β 25.0% |
3824.99.29.00 |
Mixtures containing β₯5% aromatic/modifies aromatic substances (Other). | Other Aromatic Mixtures: Other prepared binders or chemical preparations with high aromatic content, not specifically listed in 26.00. |
β 0.0% |
π Key Takeaway:
- "Mixture" is the keyword. If the product is a pure chemical, it will likely be classified under2905or2932.
- If it is a blend, check if it fits specific lists (3824.99.26) or general "Not Elsewhere Specified" (2933.99,2900.00).
- Tax Uncertainty: Codes2933.99and2900.00show "Failed to retrieve tax information" in the source data. This is a major compliance risk!
π° III. 2026 Latest Tariff Rate Details (Including Add-ons & Policy Surcharges)
β Applicable Country: United States (US)
β Origin: China (CN) (Note: Tax details in data suggest US-China trade context due to "Additional Tariff" mentions in examples like 2905.59.30.00)
β Effective Date: Current 2026 Tariff Schedule
π― 1. 2933.99 & 2900.00 ββ Generic Organic Intermediates (Mixture)
| Item | Content |
|---|---|
| Tax Status | Error / Unknown |
| Detail | "Failed to retrieve tax information" |
| Risk Level | π΄ HIGH |
| Explanation | These codes represent a "catch-all" category. The failure to retrieve tax info suggests either: 1. The data source is incomplete. 2. These codes are subject to dynamic policy changes or anti-dumping duties not reflected in standard base rates. 3. They may be subject to Section 301 tariffs if originating from China, but the base rate itself is unclear. |
| Action Required | Do NOT rely on this data alone. You must apply for an Advance Ruling or consult a licensed customs broker to determine if Section 301 tariffs (typically 25%) apply on top of an unknown base rate. |
π― 2. 2905.59.10.00 ββ Derivatives of Monohydric Alcohols
| Item | Content |
|---|---|
| Base Tariff | 0.0% |
| Additional Tariff | 0.0% |
| Total Tax | 0.0% |
| Explanation | Benign classification for simple alcohol derivatives. Low risk, low cost. |
π― 3. 2905.59.30.00 ββ Dibromoneopentylglycol
| Item | Content |
|---|---|
| Base Tariff | 0.0% |
| Additional Tariff | 25.0% |
| Total Tax | 25.0% |
| Explanation | This specific compound is subject to a 25% punitive/additional tariff. This is likely due to US Section 301 List 4 or similar trade remedies against Chinese chemical products. Even if the base is 0%, the effective duty is 25%. |
π― 4. 2932.99.90.10 & 2932.99.90.90 ββ Heterocyclic Compounds (Oxygen)
| HS Code | Base Tax | Additional Tax | Total Tax |
|---|---|---|---|
2932.99.90.10 (Glucosamine) |
3.7% | 0.0% | 3.7% |
2932.99.90.90 (Other) |
0.0% | 0.0% | 0.0% |
| Explanation | Glucosamine derivatives have a small base duty. Other oxygen-heterocyclic mixtures are duty-free. No additional tariffs indicated in the source data. |
π― 5. 3824.99.26.00 & 3824.99.29.00 ββ Aromatic Mixtures (Prepared Preparations)
| HS Code | Base Tax | Additional Tax | Total Tax |
|---|---|---|---|
3824.99.26.00 (Specific Listed Mix) |
0.0% | 25.0% | 25.0% |
3824.99.29.00 (Other Aromatic Mix) |
0.0% | 0.0% | 0.0% |
| Explanation | If your mixture contains β₯5% aromatic substances and matches the specific complex descriptions in 26.00 (e.g., specific isocyanate homopolymers), you face a 25% additional tariff. If it is a generic aromatic mixture not listed, it is 0%. Precision in chemical description is critical here. |
π οΈ IV. Customs Clearance Practical Advice (Real-World Pitfall Avoidance)
β 1. Preparation Checklist (Non-Negotiable)
| Document | Must Provide | Purpose |
|---|---|---|
| β Chemical Composition Analysis | βοΈ | Critical. Must list every component by weight % and CAS number. Without this, 2933.99 vs 2905.59 cannot be determined. |
| β Certificate of Analysis (COA) | βοΈ | Proves the product is an "Intermediate" and not a final consumer chemical. |
| β Process Flowchart | βοΈ | Shows where this mixture sits in the synthesis chain (supports "Intermediate" classification). |
| β MSDS/SDS | βοΈ | Safety data sheet. Must match the chemical description in the commercial invoice. |
| β Commercial Invoice | βοΈ | Must explicitly state: "Mixture of Organic Intermediates for further synthesis" and list key CAS numbers. |
β 2. Declaration Strategy (Key Mnemonics)
π₯ "Component Determines Code, Aromatics Trigger Tariffs, Errors Cause Delays!"
| Scenario | Correct Declaration | Wrong Declaration | Consequence |
|---|---|---|---|
| Mixture is mostly Glucosamine | 2932.99.90.10 |
2933.99 (Generic) |
Overpaying/Underpaying; Audit Risk |
| Mixture is Dibromoneopentylglycol | 2905.59.30.00 |
2933.99 |
25% Tax vs Unknown Tax. Huge Risk! |
| Mixture has 6% Aromatic X | 3824.99.29.00 (If not listed) |
3824.99.26.00 (If misidentified as listed) |
25% Tax vs 0%. Avoid accidental 25% |
| Pure Chemical Mixture | 2933.99 |
3824 (Preparation) |
Classification Error. Chapter 29 is for chemicals; Chapter 38 is for preparations. |
β
3. Special Handling for "Error" Codes (2933.99, 2900.00)
Since the tax data is missing for these codes:
1. Assume Section 301 Applies: If originating from China, assume an additional 25% tariff on top of the base rate until confirmed otherwise.
2. Apply for Pre-Ruling: Do not clear these shipments without a US CBP Advance Ruling. The "Error" flag indicates ambiguity that customs officers will exploit during random inspections.
3. Chemical Breakdown: You must prove that the mixture does not contain the specific compounds listed in 3824.99.26.00 to avoid the 25% tariff there, or prove it is not a simple alcohol derivative to avoid 2905.59.30.00.
π V. Global Market Comparison (2026 Latest)
| Country/Region | Recommended HS Code (Example) | Estimated Tariff (CN Origin) | Key Requirement | Notes |
|---|---|---|---|---|
| πΊπΈ USA | 2933.99 or 2900.00 |
High Risk (Unknown + 25%) | Detailed CAS breakdown | Section 301 likely applies. |
| π¨π³ China | 2933.99 |
~6-10% (MFN) | HS Code precision | Standard import duties. |
| πͺπΊ EU | 2933.99 |
6.5% (Standard) | REACH Registration | REACH compliance is mandatory. |
| π¬π§ UK | 2933.99 |
6.5% (Standard) | UK REACH | Post-Brexit UK REACH rules apply. |
π Conclusion:
- The USA is the most complex market for these codes due to missing tax data and potential Section 301 tariffs.
- The EU focuses on environmental/safety registration (REACH) rather than high tariffs, but delays are common if REACH docs are missing.
π VI. Common Errors & Pitfall Guide (Lessons Learned)
β Error 1: Declaring "Organic Mixture" with no CAS numbers.
π Consequence: Customs rejects the entry, demands full chemical analysis, causing weeks of delay.
β Error 2: Assuming 2933.99 is 0% tax because it's "other."
π Consequence: If it contains specific dibrominated or aromatic compounds, it may fall under 2905.59.30.00 or 3824.99.26.00, triggering a 25% retroactive tax + penalties.
β Error 3: Confusing "Intermediate Mixture" with "Preparation."
π Consequence: Misclassifying as Chapter 38 (3824) when it should be Chapter 29 (2933) or vice versa. This changes the duty from 0% to 25% or triggers different regulatory licenses.
β Correct Approach:
"Mixture of [CAS 123-45-6] (40%) and [CAS 789-01-2] (60%), used as intermediate in organic synthesis. Not a preparation for adhesive or binding."
π― VII. Conclusion: Precision is Profit in Chemical Trade
π― Remember the Mantra:
πΉ "Specific Components, Specific Codes."
πΉ "If it's a mixture, prove what's inside."
πΉ "Chapter 29 for Chemicals, Chapter 38 for Preparations."
πΉ "Missing Tax Data? Assume 25% and File a Pre-Ruling!"
π Pro Tip:
For 2933.99 and 2900.00, always request a Binding Tariff Information (BTI) ruling from the destination country's customs authority before shipping. The cost of a ruling is negligible compared to the cost of a 25% retroactive duty + storage fees.
π£ Immediate Action:
π Send your Chemical Composition Sheet to a Customs Broker TODAY.
π Do not ship until the HS Code is confirmed.
πΌ Your supply chain depends on this accuracy.
β¨ Professional Clearance Starts with Precise Classification!
πΌ Every chemical detail counts!
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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) β Broad category of goods (e.g., Chapter 84: Machinery and Mechanical Appliances)
- Heading (4 digits) β More specific grouping within the chapter
- Subheading (6 digits) β Internationally standardized breakdown, used by all WCO member countries
- National subdivisions (8-10 digits) β 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 β The standard duty rate applied to WTO members
- General rate β Applied to countries without trade agreements
- Trade remedy duties β 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.