Japan Import Customs Declaration Agency: Full Process Analysis from Documents Preparation to Release

In the first half of 2026,Mr.Zhou from an auto parts trading company in Shanghai encountered trouble: a batch of steering gears imported from Japan were temporarily stored by the port customs due to incomplete documents,which not only delayed the production plan of downstream automobile enterprises,but also generated storage fees of hundreds of yuan per day.Cases like Mr.Zhou’s are not rare among enterprises engaged in Japan import business in Shanghai: the document requirements and quarantine standards involved in Japan import customs declaration are quite different from those in China,and enterprises may face return or fines if they are not careful.

Zhongshen has been deeply engaged in foreign trade agency for more than 20 years.In view of the characteristics of Japan imports,it has built a full-process service system from document pre-review to port customs clearance,helping enterprises solve the problems of customs declaration and inspection for goods delivered from Japan to Shanghai ports.

I.Core Preparation Before Import: Document Pre-review and Compliance Confirmation

The first threshold for Japan import customs declaration usually lies in documents.Compared with other countries,Japan has more detailed requirements for export goods documents,especially for food,agricultural products,mechanical products and other categories,which require special certificates issued by Japanese local authorities.

When reviewing Mr.Zhou’s documents,Manager Cao from Zhongshen found that he only provided regular commercial invoices and packing lists,but lacked the *Export Inspection Certificate* issued by the Ministry of Agriculture,Forestry and Fisheries of Japan,which is a mandatory document for Japanese food and agricultural products exported to China.Manager Cao immediately reminded Mr.Zhou to contact the Japanese supplier for supplementation,and assisted in checking the consistency of other documents,avoiding the risk of return after the goods arrived at the port.

List of common core documents for Japan imports is as follows:

• Commercialinvoice(shallindicatetheoriginofgoodsasJapan)
• Packinglist(shallindicatethegrossweight,netweight,volumeandpackagingmethodofgoods)
• JapaneseCertificateofOrigin(JAC,eligiblefortariffpreferencesbetweenChinaandJapan)
• Food/agriculturalproducts:*ExportInspectionCertificate*issuedbytheMinistryofAgriculture,ForestryandFisheriesofJapan,*SanitaryCertificate*issuedbytheMinistryofHealth,LabourandWelfareofJapan
• Mechanicalproducts:JIScertificationreport,typetestreport
• Woodenpackaging:CertificatestampedwithIPPCmark(orheattreatmentcertificate)

The document team of Zhongshen will generate a customized pre-review list in advance according to different product types,to ensure that enterprises complete all document preparation before goods shipment,and avoid the passive situation of "goods arrive but documents are incomplete".

II.Port Customs Declaration: Code Classification and Tariff Optimization

Port customs declaration is a key link of Japan import,among which HS code classification directly affects the tariff rate and customs clearance efficiency.The codes of some Japanese products are different from those in China.If the classification is wrong,enterprises will not only have to pay supplementary tariffs,but also may face customs penalties.

In 2026,Manager Jiang from a chemical enterprise in Shanghai imported electronic grade photoresist from Japan,and the initially self-declared HS code was 3707900000 with a tax rate of 12%.During pre-review,the customs declaration team of Zhongshen found that the product met the code requirements of 3707100000 (special code for electronic grade photoresist),with a tax rate of only 8%.After confirmation by customs pre-classification,Manager Jiang saved 40,000 yuan in tariffs for the goods worth 1 million yuan.

The following is the code classification comparison of some imported Japanese products:

Zhongshen has established a regular communication mechanism with Shanghai Port Customs.For difficult classification problems of imported Japanese goods,it can apply for consultation from the customs pre-classification department in advance to ensure the code is accurate.At the same time,in view of Japan’s Generalized System of Preferences (GSP) tariff preferences,the team will review whether the goods meet the rules of "wholly produced" or "substantially transformed",to help enterprises enjoy the minimum tariff rate.

III.Commodity Inspection and Quarantine: Response to Special Requirements for Japanese Products

The commodity inspection and quarantine requirements for imported Japanese goods are strict,especially for animal and plant products,food,cosmetics and other categories,which need to comply with the bilateral quarantine agreement between China and Japan.In 2025,a food trading company in Shanghai had its imported Japanese matcha powder detained by the commodity inspection bureau for 10 days due to the lack of a sanitary certificate from the Ministry of Health,Labour and Welfare,resulting in nearly 20,000 yuan of storage fees.

In 2026,when the company imported matcha powder again,it entrusted Zhongshen as the agent.The commodity inspection team of Zhongshen confirmed the raw material origin (Shizuoka Prefecture,Japan) with the Japanese supplier in advance,assisted in providing the sanitary certificate of the Ministry of Health,Labour and Welfare,and checked the IPPC mark on the wooden packaging at the same time -- this mark is a mandatory requirement for wooden packaging of goods exported from Japan,and if it is missing,heat treatment shall be carried out at the port,which takes at least 3 days.Finally,the batch of matcha powder completed inspection and release in only 2 days,8 days shorter than the last time.

The special quarantine requirements for imported Japanese products include:

• Food:SanitarycertificateissuedbytheMinistryofHealth,LabourandWelfareofJapanandingredientanalysisform(complyingwithChina’sGB2760standard)arerequired
• Animalandplantproducts:QuarantinecertificateissuedbytheMinistryofAgriculture,ForestryandFisheriesofJapanisrequired,andsomeproductsneedtobeincludedinChina’saccesslist(forexample,Japaneseapples,pearsandotherfruitsneedtobequarantinedandapprovedforaccess)
• Cosmetics:Japanesecosmeticssafetyassessmentreportandingredientlist(complyingwithChina’s*RegulationsontheSupervisionandAdministrationofCosmetics*)arerequired
• Woodenpackaging:ShallbestampedwithIPPCmark,orprovidedwithheattreatment/fumigationcertificate

The commodity inspection team of Zhongshen has a cooperation channel with Shanghai Entry-Exit Inspection and Quarantine Bureau,which can make an appointment for inspection time in advance to avoid port congestion; in case of need for supplementary materials,the team will communicate with the Japanese supplier as soon as possible to ensure that the materials are submitted within the quarantine period.

IV.Release,Pick-up and Follow-up Services: One-stop Solution to Worries

After the goods are released,Zhongshen also provides follow-up warehousing management and foreign exchange receipt and payment services.For imported Japanese goods,the team will arrange warehousing in Shanghai bonded warehouse (can be stored for 6 months,tariff-free) or ordinary warehouse according to the needs of enterprises,and assist in handling Japanese yen foreign exchange receipt and payment -- since most Japanese suppliers require settlement in Japanese yen,the foreign exchange team of Zhongshen can provide real-time exchange rate query and settlement services to avoid losses caused by exchange rate fluctuations.

After Mr.Zhou’s steering gear goods were released,Zhongshen arranged the transportation from Yangshan Port to the warehouse of Shanghai Free Trade Zone,and assisted in handling the foreign exchange payment procedures.The whole process took only 5 days,saving 3 days compared with his own operation.

Summary: Professional Agency Makes Japan Import More Efficient and Compliant

As can be seen from Mr.Zhou’s case,the difficulties of Japan import customs declaration lie in the detailed requirements for documents,accurate code classification and special quarantine standards.With more than 20 years of industry experience,Zhongshen helps enterprises shorten the average customs clearance time by 40% and avoid more than 80% of return risks through the full-process service of "pre-review before import,docking during processing,follow-up after release",and saves considerable costs for enterprises through tariff optimization.

For enterprises engaged in Japan import business in Shanghai,choosing a professional customs declaration agency can not only solve the problems in actual operation,but also allow them to focus on business expansion,so as to achieve efficient growth of import business.