Complete Guide to Import Customs Declaration of Glue in Taizhou: Practical Guide to Avoiding Supervision Risks of Chemical Products

Current Status and Core Pain Points of Glue Import in Taizhou

As an important manufacturing base in the Yangtze River Delta,Taizhou’s annual demand for high-performance industrial glue from local automobile & motorcycle accessories,mold and plastic products industries has exceeded 120,000 tons in 2026,of which about 60% relies on imports from Germany,Japan and the United States.Such products usually contain chemical components such as epoxy resin,polyurethane and cyanoacrylate,and are generally classified into Category 35 (Adhesives) or Category 32 (Paints) in the customs supervision system.Some models containing flammable solvents are directly classified as hazardous chemicals.

In actual operations,Taizhou enterprises often encounter three typical problems: First,the data in MSDS (Material Safety Data Sheet) does not match the actual components of the goods,triggering technical rectification during port inspection; Second,the hazardous chemical packaging label does not comply with GB 15258-2020 "Regulations on the Preparation of Chemical Safety Labels",resulting in on-site rectification requirements or goods return; Third,HS code classification disputes.For example,the tax rate difference between structural adhesive and sealant can reach 5 percentage points,and incorrect declaration will lead to tax supplementary payment and even administrative penalty.The enterprise of Ms.Wu once misdeclared a German-made two-component epoxy adhesive as general cargo,which was identified as "false declaration of product name" by the customs audit department.Eventually,the enterprise not only had to pay back taxes,but also its enterprise credit rating was affected.

Positioning of Zhongshen in the Glue Import Supply Chain

Zhongshen is not just a simple customs brokerage,but a compliance manager embedded in the front end of the supply chain of Taizhou enterprises.From supervision condition prediction before signing the purchase contract to emergency disposal after the goods arrive at the port,we provide a risk buffer layer throughout the entire import cycle.Specifically,we have built professional barriers in three dimensions: First,the ability of hazardous chemical classification and identification,which can identify in advance whether the goods are listed in the Catalogue of Hazardous Chemicals (2025 Edition); Second,the document pre-audit mechanism,which completes cross verification of MSDS,hazard communication labels,certificate of origin and other documents before the supplier ships the goods; Third,port resource integration.We maintain normalized cooperation with hazardous chemical yards and inspection institutions at surrounding ports such as Ningbo,Shanghai and Wenzhou to ensure rapid response to abnormal situations.

Phase-by-phase Breakdown of Import Process and Compliance Key Points

Phase 1: Pre-shipment Document Pre-audit and Risk Elimination

This link directly determines the smoothness of subsequent customs clearance and must be completed before the supplier loads the container.Zhongshen will form an ad-hoc project group led by a senior inspection officer,focusing on verifying the following four types of documents:

• Completeness of 16 sections of MSDS: Pay special attention to whether Section 3 (component information) discloses the name,CAS number and concentration range of all hazardous chemicals,and whether Section 14 (transport information) marks the UN number and hazard class.We once encountered a case where the Japanese supplier’s MSDS lacked physical and chemical property data in Section 9.We required supplement of parameters such as flash point and explosion limit,avoiding the cargo being detained after arrival at the port due to incomplete documents.
• Hazard communication label sample: It is necessary to pre-check whether the Chinese label includes the eight core elements: chemical identification,pictogram,signal word,hazard statement,etc.and the size is not less than 105×148mm.For a batch of American instant glue imported by Mr.Sun’s company,the original label did not mark the warning "Fatal if inhaled".We coordinated with the overseas factory to reprint and apply the label,avoiding the risk of port rectification.
• Hazardous chemical packaging performance certificate: For Class I and Class II packaging,it is necessary to verify whether the packaging container has passed UN certification,and whether the UN mark on steel drums and plastic drums is clear and durable.In 2026,the spot check ratio of packaging compliance by customs has increased to 30%,and false reporting of packaging grade will face a fine of more than 100,000 RMB.
• Consistency of certificate of origin and trade documents: The product name,weight and number of pieces on the invoice,packing list and bill of lading must form a closed evidence chain.Any conflict in any field may trigger price questioning or classification verification.

The pre-audit cycle usually takes 3-5 working days.If problems are found,we communicate directly with overseas suppliers via email to correct them.This pre-action can save customers an average of 7-10 days of port detention time.

Phase 2: Port Customs Declaration and Classification Dispute Resolution

After the goods arrive at Ningbo Port or Shanghai Port,they enter the formal declaration process.The core challenge of customs declaration for glue products is the accurate determination of HS code.The operation principle of Zhongshen is: take component content as the leading factor,take use and function as auxiliary,and cross-verify with reference to the classification decisions issued by the General Administration of Customs over the years.

During declaration,we will additionally mark the percentage of key components in the remarks column of the customs declaration,for example,"Contains 45% epoxy resin,30% silica filler",to provide technical reference for customs document review.For new models imported for the first time,it is recommended to apply for pre-ruling to the classification center in advance to obtain a legally valid classification opinion.A Taizhou auto parts enterprise served by Supervisor Peng once had a dispute with the customs over the classification of a German-made hemming adhesive.We retrieved the classification database of similar products in the European Union,combined with the definition clause of "polymer-based composition" in the Notes to the Tariff,and finally persuaded the customs to adopt the code 3506.9120,avoiding the requirement for additional supervision documents caused by classification as sealant.

After the customs declaration is submitted,the system will trigger risk control.In 2026,the customs implements the "inspect on arrival" mode for chemical products.After the inspection order is issued,the on-site coordinator of Zhongshen will arrive at the hazardous chemical yard within 2 hours,cooperate with customs inspectors to check the shipping mark,model and packaging mark of the goods,and answer technical questions in real time.This rapid response mechanism compresses the average inspection time from 3 days to within 1 day.

Phase 3: Commodity Inspection Sampling and Laboratory Testing

Glue products are legally inspected commodities and must accept port inspection and quarantine.Risks in the commodity inspection link are concentrated in two aspects: first,insufficient representativeness of on-site sampling,and second,uncontrollable laboratory testing cycle.The response strategy of Zhongshen is to actively participate in the sampling process,assist inspectors to determine the sampling plan according to GB/T 2828.1 standard,and ensure that samples cover different production batches.

For glue listed in the Catalogue of Hazardous Chemicals,qualitative and quantitative testing of hazardous chemicals is also required.It usually takes 5-7 working days for the laboratory to issue a report,but Taizhou enterprises often face the pressure of production line shutdown waiting for materials.For this reason,we have established an expedited channel with testing institutions such as Ningbo Research Institute of Chemical Industry and Shanghai Research Institute of Chemical Industry,which can shorten the cycle to 3 working days.At the same time,for old models with stable components and multiple imports,we assist enterprises to apply for the "qualification guarantee + conformity verification" mode,which allows direct release based on the enterprise’s self-declaration and previous test reports,exempting from batch-by-batch sampling.

Label rectification is a frequent cause of non-compliance in commodity inspection.The new regulation in 2026 requires that Chinese labels must be applied by overseas factories,and no post-application is accepted at ports.Zhongshen will provide label templates during the document pre-audit stage,and coordinate overseas suppliers to complete the application on the production line,and only conduct conformity verification after arrival at the port.In a case handled by Supervisor Pang,a batch of Italian imported glass glue was required to be rectified because the font height of the Chinese label was less than 1.5mm.We activated the emergency plan and coordinated the professional team of the yard to re-apply the label under customs supervision.Although additional costs were incurred,the loss of returning the whole batch was avoided.

Practical Case: Risk Resolution of Imported German Release Agent for Taizhou Mold Enterprise

In March 2026,a mold factory in Huangyan,Taizhou imported a batch of high-performance release agent from Germany,with a value of 85,000 euros,which was planned to be used in the production of export precision molds.The product is a mixture of silicone oil and isoparaffin,with a flash point of 62℃,and should be classified as UN1993,Class III packaging according to the maritime dangerous goods regulations.However,due to internal communication errors,the German shipper only arranged transportation as general chemical,did not apply for the hazardous chemical packaging performance certificate,nor did it paste the UN mark on the outer packaging of the goods.

After the goods arrived at Shanghai Waigaoqiao Port,Zhongshen found the abnormality before declaration.If declared directly,it would constitute a serious violation of "concealing hazardous chemicals as general cargo",and the enterprise would face a fine of more than 200,000 RMB; if returned,the loss of production line shutdown would be huge.We quickly launched three emergency measures:

• First,immediately contacted the transportation safety laboratory of Shanghai Research Institute of Chemical Industry to carry out transportation condition identification on the goods,and confirmed that although it is a hazardous chemical,it can be transported conditionally as general cargo;
• Second,coordinated temporary storage at the port hazardous chemical yard to avoid safety risks caused by the goods滞留 in ordinary warehouses;
• Third,submitted a situation description to the customs,applied for customs clearance of return in the mode of "supervised goods",and at the same time arranged the German supplier to resend the replacement goods that meet the requirements.

Through this scheme,the original batch of goods completed return customs clearance within 14 days,the new goods arrived at the port within 20 days after the supplier’s expedited production,and the overall delay was controlled within 35 days.The customer’s production line maintained operation through inventory adjustment.After retrospective analysis,if the enterprise had embedded Zhongshen’s compliance review clause in the purchase contract,such risk could be completely avoided before shipment.

Summary of Core Value of Zhongshen’s Service

The problems faced by Taizhou enterprises importing glue are not single technical problems,but systematic compliance challenges throughout the supply chain.The value of Zhongshen lies in converting scattered regulatory requirements into executable standardized operation procedures,and converting uncertain port inspections into predictable cost and time parameters.Through pre-document review,we control the declaration error rate below 1%; through accurate HS code classification,we save customers an average tax burden of 3-5%; through port resource collaboration,we reduce the average customs clearance cycle from the industry average of 9.2 days to 5.6 days.

More importantly,we have established a set of risk early warning mechanism.For glue imported from Germany and Japan,which are the main sources for Taizhou enterprises,we regularly track the updates of chemical supervision regulations of the two countries and the dynamic changes of China Customs’ classification decisions,and push compliance reminders to customers three months in advance.This transformation from passive response to active management allows the foreign trade department to focus on core business instead of being entangled in customs clearance trivialities.Choosing Zhongshen is essentially implanting a firewall for the enterprise’s import supply chain,and finding the optimal balance between compliance cost and operation efficiency.