2026 DC Power Import Agent Clearance Process and Compliance Operation Guide

Market Background and Compliance Pain Points of Imported DC Power Supplies

In 2026,with the upgrade of domestic semiconductor testing,new energy vehicle R&D and industrial automation production lines,enterprises’ demand for high-precision,high-stability DC power supplies has grown exponentially.A large number of domestic manufacturers turn to markets with mature power technology such as Germany,the United States and Japan.However,in actual import operations,DC power supplies are not ordinary goods.Their classification involves complex HS code identification,and most power range products are strictly regulated by the national compulsory product certification (3C certification).

Many importers often underestimate the compliance threshold in the early stage of operation.Some enterprises consider power supplies as industrial parts and neglect the provisions in the "Compulsory Product Certification Catalogue" regarding "circuit switches and protection or connection electrical devices" and related power products.In addition,customs’ inspection efforts on energy efficiency labels have further increased in 2026.If imported DC power supplies are not pasted with energy efficiency labels as required or not filed in the system,they will face the risks of cargo detention,return and even administrative penalties.This information asymmetry leads to a surge in enterprises’ customs clearance costs and forced delays in production plans.

Core Value of Zhongshen in DC Power Supply Imports

In response to the above industry pain points,Zhongshen has built a tight compliance protection network for importers relying on more than 20 years of practical experience in the foreign trade agency field.We not only provide logistics and transportation services,but our core value lies in the accurate interpretation of regulatory policies and risk prediction.In DC power supply import projects,Zhongshen acts as an enterprise compliance officer,resolving potential compliance risks before the cargo arrives at the port through pre-examination of documents,accurate declaration elements and coordination of port inspections.

Our professional team can accurately determine whether it falls within the scope of 3C exemption or must provide a 3C certificate based on the output voltage,current,power and purpose of the power supply (such as whether it is used in a scientific research laboratory or production line).This precise control over policy red lines can help customers avoid customs clearance delays caused by false declarations.At the same time,in view of the clearance characteristics of Shanghai Port and major ports,we have formulated an efficient logistics and customs declaration collaboration plan to ensure that this sensitive cargo of DC power supplies can "enter smoothly and pass quickly".

Document Pre-examination: Accurate Identification of Regulatory Requirements

The first step of the import process is not the arrival of the cargo,but the in-depth pre-examination of documents.For DC power supplies,this step determines the smoothness of subsequent customs clearance.After receiving the client’s entrustment,Zhongshen will immediately activate the document review mechanism,focusing on verifying the following key documents and elements:

• Compulsory Product Certification (3C) Verification: Check whether the imported power supply is within the 3C catalogue.If it is in the catalogue,the original 3C certificate must be verified to confirm that the certificate is valid,and the applicant,manufacturer,product name,model and specifications on the certificate are completely consistent with the actual goods and nameplate.For power supplies used for scientific research,testing and other purposes,we assist enterprises in applying for 3C exemption certificates.
• Energy Efficiency Label Filing Check: According to the "Energy Efficiency Label Management Measures",some DC power supplies fall within the scope of energy efficiency label management.We assist enterprises in confirming whether the product needs to be pasted with China’s energy efficiency label (the blue and white label of "China Energy Efficiency Label"),and complete the filing data entry in the system in advance to ensure that the goods and documents are consistent.
• Compliance Statement and Technical Parameters: Review the packing list,invoice and product manual provided by foreign suppliers,focusing on extracting declaration elements such as voltage (V),current (A),power (W),etc.These parameters directly determine the customs valuation and HS code classification,and any slight deviation may trigger customs doubts.

Comparison of Key Regulatory Elements for General Trade Imported DC Power Supplies

Port Customs Declaration and Commodity Inspection: The Key to Avoiding Inspection Risks

When the cargo arrives at Shanghai Port,the process enters the substantive customs declaration and commodity inspection stage.In 2026,the combination of "document verification" and "physical inspection" by customs has become closer.As a key sensitive commodity,DC power supplies have a relatively high inspection rate.Zhongshen adopts refined operation strategies at this stage:

In the electronic declaration link,we ensure that the entered declaration elements are 100% consistent with the physical nameplate.Especially for the "power" and "purpose" fields of the power supply,we will fill in truthfully based on the pre-examination results to avoid triggering risk control due to underreported prices or vague declarations (such as declaring "for production" as "for maintenance").Once the system generates an inspection instruction,Zhongshen’s on-site customs declarer will respond immediately to assist customs officials in unpacking and inspecting the goods.

In terms of commodity inspection,DC power supplies are statutory inspection commodities.We assist customers in cooperating with the port inspection and quarantine department,focusing on checking whether the cargo carries undeclared wooden packaging (need to issue an IPPC fumigation certificate) and whether the appearance of the power supply is damaged.For power supplies that need to be sampled for inspection,we follow up the sample circulation throughout the process to ensure that customs is notified for release immediately after the test report is issued,minimizing the detention time of the goods at the terminal and reducing the occurrence of container detention fees and storage fees.

Actual Case: Assisting Mr.Ruan to Solve the Problem of Missing Energy Efficiency Labels

Mr.Ruan,the person in charge of a Shanghai-based enterprise engaged in precision instrument R&D,planned to import a batch of high-precision programmable DC power supplies with a total value of about 500,000 euros from Germany in early 2026 for the aging test of new products.Since this was Mr.Ruan’s first time directly importing such high-power equipment,he was not familiar with the specific domestic regulatory requirements.After the cargo arrived at the port and was declared,the system immediately triggered a "destination inspection" instruction and prompted "abnormal energy efficiency label".

Customs found during the inspection that although this batch of power supplies complied with German energy efficiency standards,they were not pasted with China’s energy efficiency labels,and the importer had not filed for energy efficiency at the port.According to regulations,this batch of goods faces the risk of rectification or even return.Mr.Ruan was extremely anxious because the production line had stopped waiting for materials,and the loss was huge for each day of delay.At this point,Mr.Ruan urgently contacted Zhongshen for emergency agency services.

After Zhongshen took over,we immediately assigned a special commissioner to connect.First,we calmed Mr.Ruan’s emotions and quickly assessed the current situation.We confirmed that this product was indeed within the energy efficiency label management catalogue,but the foreign supplier had neglected the labeling requirements.We then adopted a two-step strategy: First,assist Mr.Ruan in submitting a "Rectification Application" to the customs,explain the situation and apply for rectification under customs supervision; Second,urgently coordinate a domestic professional energy efficiency label service agency to produce qualified energy efficiency labels overnight,and arrange professionals to accompany them into the customs supervision warehouse to complete the labeling of each power supply unit.

At the same time,we completed all energy efficiency filing procedures and submitted a compliance statement to the customs.Relying on Zhongshen’s good communication mechanism with the customs and efficient rectification execution ability,the customs issued a release order on the same day after confirming that the rectification was qualified.It only took 48 hours for this batch of power supplies to be finally released after being detained,which was far lower than the return period expected by Mr.Ruan.This experience made Mr.Ruan deeply realize the importance of a professional agent,and subsequently all equipment imports of this company were fully entrusted to Zhongshen.

Operation Suggestions for Enterprises Importing DC Power Supplies

Based on Zhongshen’s years of practical experience,we recommend enterprises planning to import DC power supplies in 2026 and beyond to do the following preparations before operation:

• Clarify Product Purpose: Before signing the purchase contract,clearly distinguish whether the power supply is used for final product production,commercial sales or scientific research testing.Power supplies for scientific research testing may apply for 3C exemption,while those for sales must obtain a 3C certificate,which directly affects import costs and processes.
• Review Foreign Documents: Require foreign suppliers to provide detailed specifications and nameplate drawings.The nameplate must include information such as Chinese product name,model,voltage,current,power,manufacturer name,etc.which is the core basis for customs inspection.
• Confirm Packaging Compliance: Confirm whether the cargo pallet has wooden packaging.If so,be sure to require foreign suppliers to issue a fumigation certificate to avoid additional costs caused by destruction or decontamination due to wooden packaging problems after the cargo arrives at the port.
• Choose a Professional Agent: In view of the complexity of supervision over power products,do not be greedy for cheap and choose unscrupulous customs brokers.Choosing an agency company with rich industry experience and able to provide one-stop whole-process services like Zhongshen is the best solution to avoid risks.

Conclusion

Importing DC power supplies seems simple,but there are actually many compliance details hidden.From the strict review of 3C certification to the standardized filing of energy efficiency labels,every link cannot be neglected.With 20 years of industry accumulation,Zhongshen has opened up import channels for enterprises through professional document pre-examination,accurate customs declaration and efficient emergency handling capabilities.We not only help customers solve complex customs clearance problems,but also effectively reduce enterprises’ trade risks and hidden costs through compliant operations,allowing enterprises to focus on the development of their core business and introduce international advanced equipment without worries.