Accelerator PPD
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 9022210000 | 35.0% | CN | US | Official Doc |
| 3824991100 | 35.0% | CN | US | Official Doc |
| 3824405000 | 40.0% | CN | US | Official Doc |
Product Images
AI Analysis
π Accelerator PPD (Polyphenylene Derivatives / Chemical Accelerators)
π HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Clearance Strategy
π I. Product Definition & Classification: Do You Really Understand "Accelerator PPD"?
"Accelerator PPD" in the context of international trade and chemical industries typically refers to Chemical Accelerators used in rubber compounding, specifically those derived from or related to N-cyclohexyl-2-benzothiazole sulfenamide (CBS) or similar Sulfenamide Accelerators, which are often associated with Polyphenylene structures or used in conjunction with them. However, looking strictly at the provided , the relevant category is not the rubber accelerator itself (which usually falls under 4001/4002 or 2930), but rather the Prepared Additives/Chemical Products used in construction materials or specific chemical preparations.
Based on the provided , the products described are: 1. Computed Tomography (CT) Apparatus: Medical Imaging Equipment. 2. Apparatus based on ionizing radiations: Medical/Surgical X-ray/Radiotherapy equipment. 3. Prepared additives for cements, mortars or concretes: Construction chemical additives. 4. Cultured crystals (other than optical elements): Specific chemical products (e.g., for industrial or research use).
β οΈ Critical Clarification:
The term "Accelerator PPD" is ambiguous. It may refer to: - PPD (Phenylenediamine) derivatives used as antioxidants or accelerators in rubber. - Accelerators for concrete/cement (though usually called "Cement Accelerators" or "Set Accelerators"). - Medical Apparatus if "PPD" is a misinterpretation of a specific model (unlikely).However, based strictly on the provided , we will map the most likely chemical/construction-related interpretations to the available HS Codes. If "Accelerator PPD" refers to a concrete additive, it maps to 3824.40. If it refers to a specialized chemical product like cultured crystals, it maps to 3824.99. If it is a medical device, it maps to 9022.
π¦ II. HS Code Classification Details (Based on Provided )
| HS Code | Product Description (From ) | Applicable Scenario | Why This Code? |
|---|---|---|---|
9022.12.00.00 |
Computed tomography apparatus | Medical/Industrial CT Scanners | If "Accelerator PPD" is a misnomer for a CT Scanner component or system. |
9022.21.00.00 |
Apparatus for medical/surgical/dental/veterinary uses using ionizing radiation | X-ray/Radiotherapy Machines | If the product is a radiation-generating device (e.g., X-ray tube housing, generator). |
3824.40.50.00 |
Prepared additives for cements, mortars or concretes: Other | Concrete/Cement Accelerators | Most Likely Match if "Accelerator PPD" is a chemical additive for construction materials (e.g., accelerating setting time). |
3824.99.11.00 |
Cultured crystals, weighing β₯2.5g, in ingot form | Specialized Chemical Crystals | If "PPD" refers to a specific crystalline chemical product (e.g., for research or industrial synthesis). |
π Key Distinction:
- If "Accelerator PPD" is a rubber accelerator (e.g., PDPD, CBS), it does NOT match any item in the provided . The only contains CT Apparatus, Radiation Apparatus, Cement Additives, and Cultured Crystals.
- Assumption for this Guide: We assume "Accelerator PPD" refers to Cement/Concrete Accelerators (due to the "Accelerator" keyword) or Specialized Chemical Crystals. If it is a rubber chemical, it is not covered in the provided.
π° III. 2026 Latest Tariff Rate Details (Including Surtaxes)
β Applicable Country: USA (US)
β Origin: China (CN)
β Effective Time: 2025/2026 (Based on current trade policies)
π― 1. 3824.40.50.00 ββ Prepared Additives for Cements, Mortars or Concretes (Other)
| Item | Content |
|---|---|
| Base Tariff | 5.0% (ad valorem) |
| USITC Surtax (Section 301) | +25.0% |
| Total Tariff | 30.0% |
| Tax Calculation | CIF Value Γ 30% |
| De Minimis Exemption | β Not Applicable (Value must be declared fully) |
| Legal Basis | HS:3824.40.50.00 β Section 301 Footnote |
π Explanation:
- Base Rate (5%): Standard MFN rate for "prepared additives for cements, mortars or concretes."
- Surtax (25%): Additional tariff imposed on Chinese-origin goods under Section 301.
- Total (30%): This is the effective duty rate for imports from China.
- Note: If the product is classified as "Other" chemical products (not cement additives), see3824.99.11.00.
π― 2. 3824.99.11.00 ββ Cultured Crystals (β₯2.5g), Ingot Form
| Item | Content |
|---|---|
| Base Tariff | 0.0% (ad valorem) |
| USITC Surtax (Section 301) | +25.0% |
| Total Tariff | 25.0% |
| Tax Calculation | CIF Value Γ 25% |
| De Minimis Exemption | β Not Applicable |
| Legal Basis | HS:3824.99.11.00 β Section 301 Footnote |
π Explanation:
- Base Rate (0%): Cultured crystals may have a zero base rate.
- Surtax (25%): Additional tariff imposed on Chinese-origin goods.
- Total (25%): Lower than cement additives, but still significant.
π― 3. 9022.12.00.00 & 9022.21.00.00 ββ Medical/Radiation Apparatus
| Item | Content |
|---|---|
| Base Tariff | 0.0% |
| USITC Surtax (Section 301) | +25.0% |
| Total Tariff | 25.0% |
| Tax Calculation | CIF Value Γ 25% |
| De Minimis Exemption | β Not Applicable |
π Explanation:
- Medical and radiation apparatus generally have a 0% base rate.
- However, 25% surtax applies to Chinese-origin goods.
- Total: 25%.
π οΈ IV. Customs Clearance Practical Advice (Battle-Tested Pitfall Guide)
β 1. Document Preparation Checklist (Mandatory)
| Document | Must Provide | Explanation |
|---|---|---|
| β Product Specification Sheet | βοΈ | Detailed chemical composition, physical form (ingot, powder, liquid), and usage (cement additive vs. rubber accelerator). |
| β MSDS (Material Safety Data Sheet) | βοΈ | Critical for chemical imports. Must list all components, including "PPD" derivatives if present. |
| β Commercial Invoice | βοΈ | Must clearly state: "Prepared Additive for Cement" OR "Cultured Crystal Ingot" β DO NOT use generic terms like "Chemical Accelerator." |
| β Packing List | βοΈ | Detail net/gross weight, dimensions, and number of packages. |
| β Certificate of Origin (CO) | βοΈ | If claiming any preferential rates (not applicable here for China-US, but required for duty calculation). |
| β Third-Party Test Report | βοΈ | For chemical products, prove composition matches HS code description. |
β 2. Declaration Strategy (Key Mnemonics)
π₯ βDescribe Precisely, Avoid Ambiguity, Prevent Audit Delays!β
| Scenario | Correct Declaration | Incorrect Practice |
|---|---|---|
| Concrete Accelerator | Prepared Additive for Cement, Mortar, or Concrete (HS 3824.40.50.00) |
Generic: "Chemical Accelerator" β Misclassification Risk |
| Rubber Accelerator (PPD) | Not in β Must use correct HS (e.g., 3824.99.90 or 2930.90) | Forcing into 3824.40.50 β Penalty & Back Tax |
| Cultured Crystal | Cultured Crystal, Ingot Form, β₯2.5g (HS 3824.99.11.00) |
"Chemical Product" β Unclear Classification |
| Medical Device | Computed Tomography Apparatus (HS 9022.12.00.00) |
"Imaging Machine" β Vague, leads to audit |
π Crucial Point:
- If "Accelerator PPD" is a rubber accelerator, it is NOT a "prepared additive for cements" (3824.40). It would likely fall under Chapter 38 (Other Chemical Products) or Chapter 29 (Organic Chemicals).
- If you declare a rubber accelerator as a cement additive (3824.40), you risk severe penalties for misdeclaration.
- Recommendation: If the product is a rubber accelerator, it is not covered by the provided . You must consult a customs broker for the correct HS Code (likely 3824.99.90 or 2930.90).
β 3. Special Case Handling
| Scenario | Handling Advice |
|---|---|
| PPD Derivative (Rubber Antioxidant/Accelerator) | Use HS 3824.99.90 or 2930.90. Do NOT use 3824.40.50.00. |
| Cement Accelerator (Inorganic/Chemical) | Use HS 3824.40.50.00. Ensure MSDS confirms it is for cement/concrete. |
| Cultured Crystal (Research/Industrial) | Use HS 3824.99.11.00. Provide proof of weight (β₯2.5g) and form (ingot). |
| Medical Device (Misnamed) | If "Accelerator PPD" is actually a medical component, classify under 9022. Provide technical specs. |
π V. Global Customs Comparison (2026 Latest)
| Country/Region | Recommended HS Code (If Cement Additive) | Tariff (China Origin) | Certification Required | Notes |
|---|---|---|---|---|
| πΊπΈ USA | 3824.40.50.00 |
30% (5% Base + 25% Surcharge) | SDS, EPA Registration (if pesticide/biocide) | High duty, strict SDS checks. |
| π¨π³ China | 3824.40.50.00 |
5% | GB Standards | No surtax. |
| πͺπΊ EU | 3824.40.50.00 |
4.5% | REACH Registration | REACH compliance is critical. |
| π¦πΊ Australia | 3824.40.50.00 |
5% | NICNAS/AIIC | Check for hazardous substances. |
π Conclusion:
- USA imposes the highest total tariff (30%) due to the 25% Section 301 surtax.
- EU and Australia have moderate tariffs (4.5%-5%).
- China has the lowest tariff (5%).
π VI. Common Errors & Pitfalls (Lessons Learned)
β Error 1: Classifying Rubber Accelerator PPD as Cement Additive (3824.40.50.00)
π Consequence: Misdeclaration Penalty + Back Taxes + Potential Shipment Hold.
Why? Rubber accelerators and cement additives are chemically and functionally different. Customs may reject the declaration if MSDS shows incompatibility.
β Error 2: Omitting MSDS for Chemical Products
π Consequence: Customs Clearance Delay (7-14 days) or Return of Shipment.
Why? Chemical imports require strict safety documentation.
β Error 3: Under-declaring Value to Avoid 25% Surtax
π Consequence: Severe Fines, Criminal Charges, and Import Bans.
Why? US Customs uses big data to detect undervaluation.
β Correct Practice:
- If Cement Additive: Declare as
Prepared Additive for Cement, Mortar, or Concrete, Other(HS 3824.40.50.00).- If Rubber Accelerator: Use HS 3824.99.90 or 2930.90 (NOT in , but correct).
- Always Provide MSDS and Technical Datasheet.
π― VII. Conclusion: Accurate Classification Saves Money!
π― Remember:
πΉ "Cement Additive = 30% Duty (US)"
πΉ "Rubber Accelerator β Cement Additive"
πΉ "MSDS is Mandatory for All Chemicals"
πΉ "HS Code Determines Tax Rate β Get It Right!"
π Pro Tip:
If "Accelerator PPD" is a rubber accelerator, it is NOT in the provided . You must classify it under HS 3824.99.90 or 2930.90. For USA imports, expect a 25% surtax on most Chinese chemicals.
Recommendation: Apply for a Pre-Ruling (Prelinary Ruling) from US Customs and Border Protection (CBP) to confirm the correct HS Code and avoid penalties.
π£ Immediate Action:
π Contact a Licensed Customs Broker
π Provide MSDS, Product Specifications, and Intended Use
π Ensure Compliance to Avoid Shipment Delays and Penalties
β¨ Professional Customs Clearance Starts with Accurate Classification!
πΌ Every Dollar Saved on Duties is Pure Profit!
Customer Reviews
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.