Inorganic Anti algae Agent
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 2842909050 | 10.0% | CN | US | Official Doc |
| 3808913000 | 40.0% | CN | US | Official Doc |
| 3808997000 | 40.0% | CN | US | Official Doc |
| 2827399050 | 10.0% | CN | US | Official Doc |
| 2827399010 | 10.0% | CN | US | Official Doc |
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π¦ Inorganic Anti-Algae Agent (Inorganic Algicide)
π HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Customs Strategy
π 1. Product Definition & Classification: Do You Really Understand "Inorganic Anti-Algae Agent"?
An Inorganic Anti-Algae Agent is a chemical substance used to kill or inhibit the growth of algae, primarily in industrial cooling towers, swimming pools, water treatment facilities, and agricultural reservoirs. Unlike organic algicides, its active ingredients are derived from inorganic compounds (such as copper sulfate, chlorine compounds, or other metallic salts).
In international trade, classification hinges on two critical factors: 1. Material Nature: Is it a pure inorganic chemical salt? Or a formulated product? 2. Function/Use: Is it explicitly designed for pest control (algae control)?
β οΈ Key Classification Distinction:
- If it is a pure chemical compound (e.g., pure Copper Sulfate) without other additives for specific formulation β It may fall under Chapter 28 (Inorganic Chemicals).
- If it is a formulated product containing inorganic active ingredients mixed with carriers, surfactants, or stabilizers for direct application β It falls under Chapter 38 (Miscellaneous Chemical Products), specifically heading 3808 (Insecticides, Rodenticides, Fungicides, Herbicides, Anti-Sprouting Products and Plant-Growth Regulators).
π¦ 2. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
Based on the provided data, there are two main classification paths. The choice depends on whether Customs views the product as a raw chemical material or a ready-to-use pesticide/algicide.
| HS Code | Product Description | Classification Logic | Tax Impact (China to US) |
|---|---|---|---|
| 2842.90.90.50 | Other Salts of Inorganic Acids or Peroxoacids | Material-Based: Treats the product as an "inorganic salt." Assumes the "algicide" function is secondary to its chemical identity as an inorganic compound. Uses the "Other" catch-all category. | +10% (Section 301 Only) |
| 3808.91.30.00 | Pesticides & Disinfectants (Other Than Insecticides, Rodenticides, Fungicides, Herbicides) | Function-Based: Explicitly categorizes as a pesticide/algicide. Fits the definition of "containing inorganic substances" for pest control. | 40% (5% Base + 25% Sec 301 + 10% IEEPA) |
| 3808.99.70.00 | Other Pesticides, Rodenticides, Fungicides, Herbicides | Function-Based: Another "Other" category for pesticides. Matches the "inorganic" material and "algicide" use case. | 40% (5% Base + 25% Sec 301 + 10% IEEPA) |
| 2827.39.90.50 | Other Chlorides, Bromides, or Iodides | Material-Based: Infers the inorganic agent is a chloride/bromide salt. No material conflict, but ignores the specific "pesticide" function. | +10% (Section 301 Only) |
| 2827.39.90.10 | Other Chlorides, Bromides, or Iodides | Material-Based: Similar to above, focuses on the inorganic chemical nature (chloride/bromide). | +10% (Section 301 Only) |
π Critical Insight:
- Path A (Lower Tax): Classify under Chapter 28 (2842, 2827). This assumes the product is a raw inorganic chemical. Risk: Customs may reject this if the product is clearly a formulated "algicide" intended for direct use.
- Path B (Higher Tax): Classify under Chapter 38 (3808). This is the correct functional classification for ready-to-use algaecides. It incurs significantly higher tariffs.
π° 3. 2026 Latest Tariff Rate Breakdown (Including Additional Taxes & Policies)
β Applicable Country: United States (US)
β Origin: China (CN)
β Effective Date: November 10, 2025 (and subsequent imports)
π― Scenario 1: Chapter 28 Classification (Raw Inorganic Chemical)
Applicable HS Codes: 2842.90.90.50, 2827.39.90.50, 2827.39.90.10
| Item | Detail |
|---|---|
| Base Tariff Rate | 0% (Most inorganic chemicals have 0% base MFN rate) |
| Section 301 Tariff (25%) | 0% (These specific subheadings are exempt from the standard 25% Section 301 list in this data context) |
| IEEPA Additional Tax (10%) | +10% (Targeting Chinese products under International Emergency Economic Powers Act) |
| Total Tariff Rate | 10% |
| Calculation Basis | CIF Value Γ 10% |
| De Minimis Exemption | β Not Applicable (Section 321 de minimis generally excluded for Section 301/IEEPA items) |
| Legal Basis Path | IEEPA:9903.01.24 β USITC:2842.90.90.50 or 2827.39.90.x0 |
π Explanation:
- The 10% comes solely from the IEEPA provision.
- Crucial: This path is only valid if the product is deemed a raw chemical, not a formulated pesticide. If Customs determines it's a formulated algicide, this classification will be rejected, leading to penalties.
π― Scenario 2: Chapter 38 Classification (Formulated Pesticide/Algicide)
Applicable HS Codes: 3808.91.30.00, 3808.99.70.00
| Item | Detail |
|---|---|
| Base Tariff Rate | 5% (Standard MFN rate for pesticides) |
| Section 301 Tariff (25%) | +25% (Standard 25% additional tariff on Chinese pesticides) |
| IEEPA Additional Tax (10%) | +10% (HIA/IEEPA tariff on Chinese goods) |
| Total Tariff Rate | 40% |
| Calculation Basis | CIF Value Γ 40% |
| De Minimis Exemption | β Not Applicable |
| Legal Basis Path | IEEPA:9903.01.24 β IEEPA:9903.01.25 β USITC:3808.91.30.00 or 3808.99.70.00 |
π Explanation:
- This is the most likely correct classification for commercial "Anti-Algae Agents" because they are typically formulated products.
- The 40% total tax rate includes:
- 5%: Base duty.
- 25%: Section 301 Tariff (Trade War).
- 10%: IEEPA Tariff (National Security/Emergency Powers).
- Impact: This is a high-cost classification. Profit margins will be significantly reduced.
π οΈ 4. Customs Clearance Practical Advice (Pitfall Avoidance Guide)
β 1. Documentation Checklist (Essential)
| Document | Required | Notes |
|---|---|---|
| Product Specification Sheet | βοΈ | Must clearly state: Active Ingredient %, Chemical Name (Inorganic), CAS Number, and Formulation Type (e.g., powder, liquid). |
| Label/Copy of Label | βοΈ | Must include "Algicide," "Inorganic," and safety warnings. |
| MSDS (Safety Data Sheet) | βοΈ | Critical for determining if it's a hazardous material and verifying chemical composition. |
| EPA Registration (If for US Use) | βοΈ | If marketed in the US, EPA registration is mandatory for pesticides. |
| Commercial Invoice | βοΈ | Describe as "Inorganic Algicide, Powder, For Industrial Water Treatment" (avoid vague terms). |
| Origin Certificate | βοΈ | If shipped from China, subject to additional tariffs. |
β 2. Declaration Tips (Key Strategy)
π₯ "Describe by Function, Declare by Composition!"
| Scenario | Correct Declaration | Risk of Wrong Declaration |
|---|---|---|
| Formulated Algicide (Ready-to-use) | 3808.91.30.00 or 3808.99.70.00 | If declared as 28xx (Chemical), Customs may audit and assess 40% + penalties. |
| Raw Inorganic Salt (e.g., Pure CuSOβ) | 2842.90.90.50 or 2827.39.90.x0 | If declared as 3808 (Pesticide), you pay 40% unnecessarily. |
| Mix of Raw & Formulated | Split Line Items | Do not mix. One HS code per line item. |
π Critical Warning:
- If your product contains binders, solvents, or surfactants added to the inorganic salt, it is likely considered a formulated product β Chapter 38.
- If it is 100% pure inorganic compound with no additives β Chapter 28.
β 3. Special Cases
| Situation | Advice |
|---|---|
| EPA Registered Product | Must use HS 3808. EPA registration proves it's a "pesticide/algicide" by legal definition. |
| Industrial Raw Material | If sold to a factory for further processing, provide a Letter of Intent stating it's a raw chemical intermediate. May argue for Chapter 28. |
| High Active Ingredient % (>90%) | Borderline case. Provide Third-Party Purity Analysis. If >90% pure, argue for Chapter 28. If <90%, argue for Chapter 38. |
π 5. Global Market Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff Rate | Notes |
|---|---|---|---|
| πΊπΈ USA | 3808.91.30.00 | 40% | High tariff due to Section 301 + IEEPA. |
| πΊπΈ USA (Raw Chemical) | 2842.90.90.50 | 10% | Only if pure chemical, not formulated. |
| π¨π³ China | 3808.91.30.00 | 5% | Base rate. No Section 301 for imports. |
| πͺπΊ EU | 3808.91.00 | 0-6.5% | Varies by country. No major trade war tariffs. |
| π¦πΊ Australia | 3808.91.00 | 5% | Standard MFN rate. |
π Conclusion:
- The US market is the most expensive due to additional tariffs.
- Chapter 28 (10% tax) is only viable for pure inorganic salts.
- Chapter 38 (40% tax) is the standard for commercial algicides.
π 6. Common Errors & Pitfall Guide (Lessons Learned)
β Error 1: Declaring a formulated algicide as a raw chemical (HS 28xx) to save tax.
π Consequence: Customs inspection reveals additives β Reclassified to 3808 β Back taxes + Penalties + Delay.
β Error 2: Failing to provide EPA registration or MSDS.
π Consequence: Cargo detained or returned because pesticide imports are strictly regulated.
β Error 3: Vague description "Chemical for Algae."
π Consequence: Customs officer assigns worst-case scenario HS code β 40% tax + additional review time.
β Correct Practice:
"Inorganic Algicide, Powder, Containing 98% Copper Sulfate Pentahydrate, CAS No. 7758-98-7, For Industrial Cooling Towers, Not for Agricultural Use."
π― 7. Conclusion: Professional Declaration, Cost Optimization!
π― Key Takeaway:
πΉ "Pure Chemical = Chapter 28 (10% Tax)"
πΉ "Formulated Product = Chapter 38 (40% Tax)"
πΉ "EPA Registered = Chapter 38 Mandatory"
π Pro Tip:
If your product is 95%+ pure inorganic salt with no additives, strongly argue for Chapter 28. Provide purity certificates and MSDS showing no binders or surfactants. This can save you 30% in tariffs.
π£ Immediate Action:
π Consult a Customs Broker: Determine if your product is "raw" or "formulated."
π Prepare MSDS & Purity Report: Essential for Chapter 28 argument.
π Accurate Declaration: Avoid penalties and ensure smooth clearance.
β¨ Professional Customs Clearance Starts with Accurate Classification!
πΌ Every Percentage Point of Tariff Matters!
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.