Complete Process Compliance Guide for Import Customs Clearance Agency of Nine Types of Chemicals

Core Compliance Logic for Import Customs Clearance of Nine Types of Chemicals

Nine types of chemicals are regulated categories under the "Hazardous Chemicals Catalog (2025 Edition)" (still effective in 2026),covering sub-categories such as industrial solvents,organic pigment auxiliaries,synthetic resin additives,etc.When importing,they must simultaneously meet the triple regulatory requirements of customs,maritime,and emergency management departments.Manager Xu handled a case of industrial cleaner import from Germany in 2025,where the client failed to conduct pre-inspection for commodity inspection in advance,resulting in the goods being subject to control inspection upon arrival at the port,incurring demurrage fees of 120,000 RMB.This is a pre-clearance step that many enterprises easily overlook.

1.Key Techniques for Accurate HS Code Classification

In 2026,the General Administration of Customs updated the HS code annotations.The classification of nine types of chemicals requires combining three core elements: CAS number,component proportion,and intended use.For example,ethanol with 95% concentration used for industrial cleaning is classified under 3824999990,while that for medical disinfection is classified under 38089400.The key here is to provide complete MSDS reports and component testing reports; otherwise,misclassification is highly likely,leading to a tariff rate difference of up to 15%.

2.Essential Document List and Pre-review Points

• Officially issued hazardous characteristics classification identification report (from 2026 onwards,must be issued by a third-party agency recognized by the General Administration of Customs)
• MSDS report (must include 16 complete items and be consistent with the actual components)
• Import hazardous chemicals registration certificate (issued by the emergency management department,valid for 3 years)
• Certificate of origin (if from RCEP member countries,eligible for 0% tariff preference,electronic certificate must be submitted)
• Packing list,invoice,contract (must indicate the CAS number and component proportion of the goods)

Starting from 2026,customs no longer accepts paper certificates of origin; all must upload electronic certificates through the International Trade Single Window,otherwise tariff reductions cannot be applied.Mr.Du handled an order for importing nine types of chemicals from South Korea last year,and due to submitting a paper certificate,customs clearance was delayed by 3 days,incurring an additional container demurrage fee of 8,000 RMB.

Common Risk Warnings and Avoidance Solutions

1.Response Techniques for Customs Valuation Disputes

In 2026,customs’ valuation system has been upgraded to AI-based comparison,automatically matching historical transaction prices of similar goods.If the declared price is lower than 80% of the market average,it will directly trigger control inspection.The response solution is to prepare supporting materials for the transaction price in advance,such as comparison records with third parties,long-term supply contracts,exchange rate fluctuation explanations,etc.If related-party transactions are involved,it is necessary to submit an explanation of the relationship to customs in advance to avoid being identified as transfer pricing.

2.Prevention and Control Measures for Inspection Control

The inspection rate for nine types of chemicals is approximately 22% (2026 Shanghai Port data),mainly due to discrepancies between declared elements and actual goods.For example,declaring "free of heavy metals" but the testing report shows trace amounts of lead.The avoidance method is to commission a domestic third-party testing agency for pre-inspection before shipment to ensure that the declared information matches the actual goods.Local agents in Shanghai are familiar with the inspection process and can quickly cooperate with customs to complete container opening,reducing demurrage time.

3.Avoidance of Hidden Cost Traps

Some freight forwarders may vaguely indicate fees such as document exchange fee and manifest fee in contracts.In 2026,the standard document exchange fee at Shanghai Port is 300-500 RMB per shipment.If it exceeds this range,it should be confirmed in advance.Additionally,the calculation method for demurrage fees needs to be clarified,whether it is per day or based on container demurrage rates,to avoid disputes later.

Zhongshitong Exclusive Service Advantages

As a foreign trade agency headquartered in Shanghai,we can provide cross-port declaration services nationwide.For example,for nine types of chemicals imported from Ningbo Port,document review can be completed in Shanghai and directly pushed to Ningbo Customs,without requiring clients to make extra trips.Simultaneously,we have a global agent network that can assist clients in completing pre-clearance steps overseas such as pickup,booking,and insurance,ensuring quick customs clearance after goods arrive at the port.For the latest regulatory policies in 2026,we will push a document pre-review checklist to clients 7 days in advance to avoid delays due to document issues upon arrival.

Standardized Practical Operation Process

• Step 1: Provide detailed goods information,complete HS code pre-classification and risk assessment
• Step 2: Assist clients in obtaining import hazardous chemicals registration certificate and classification identification report
• Step 3: Review full set of documents,upload to the International Trade Single Window
• Step 4: Arrange manifest declaration,tax payment,and follow up on electronic tax bill verification
• Step 5: Cooperate with customs and commodity inspection for inspection,complete the release process
• Step 6: Arrange delivery to the client’s designated warehouse,provide subsequent tax refund consultation services

Starting from 2026,all imported hazardous chemicals must complete manifest declaration 72 hours before arrival at the port,otherwise a 0.05% late declaration penalty will be incurred.We will remind clients to prepare relevant materials promptly after signing the contract to avoid unnecessary cost expenses.

The core of import customs clearance for nine types of chemicals lies in pre-clearance compliance preparation.Avoiding risks such as classification,documents,and valuation in advance can save enterprises over 30% in clearance time and costs.Choosing a professional agency ensures full compliance with the latest customs and regulatory requirements in 2026,making the import process smoother.