---
title: "How to Conduct Document Checking with Agent for Ocean Export? Full Analysis of Core Process - Zhongshen Trading China"
description: "In 2026，driven by the capacity expansion of Vietnam's electronic manufacturing industry，the export demand for small electronic components made in Shanghai increased by 28%. However，container detention and document rejection caused by document checking errors between exporters and agents account for more than 15% of total ocean export cases. Manager Liu，document supervisor of Zhongshen，pointed out that document checking must comply with Vietnam's latest Administrative Measures for Stand..."
url: "https://www.sh-zhongshen.com/en/agency-knowledge/shipping-export-document-checking-with-agent-process.html"
language: "en"
type: "Article"
category: "Agent Knowledge"
datePublished: "2026-07-06"
dateModified: "2026-07-06"
brand: "Zhongshen Trading China"
image: "https://cndpic.sh-zhongshen.com/uploads/tradepics/EEBvGypg2lubD.webp"
---

# How to Conduct Document Checking with Agent for Ocean Export? Full Analysis of Core Process

## Shanghai Electronic Components Export to Vietnam: 2026 Market and Document Checking Pain Points

In 2026,the capacity expansion of Vietnam’s electronic manufacturing industry drives a 28% year-on-year increase in demand for small Shanghai-made electronic components,and many Shanghai-based factories choose ocean export for their goods.However,Factory Director Zhang recently ran into trouble: last month,a shipment was detained at Ho Chi Minh Port for 3 days because he missed the latest Import Quarantine List for Electronic Components required by Vietnam during document checking with his agent,costing an extra RMB 20,000 in container demurrage.Similar document checking errors account for more than 15% of ocean export shipments from Shanghai to Southeast Asia — this is exactly the core reason why many enterprises choose professional foreign trade agents.

![20 Years of Foreign Trade Experience: Compliance Guide for Ocean Export Document Checking](https://cndpic.sh-zhongshen.com/uploads/tradepics/EEBvGypg2lubD.webp)

## Zhongshen’s Agency Service: Document Checking Solution Aligned with Vietnam’s Trade Policies

With 20 years of expertise in foreign trade agency,Zhongshen has developed a "policy pre-implementation + document pre-review + dynamic checking" service framework in response to the Administrative Measures for Standardization of Import Commodity Documents implemented by Vietnam in 2026,helping clients like Factory Director Zhang avoid various compliance risks.

### 1.Document Checking Module: Vietnam-specific Policy Requirements and Countermeasures

Vietnam added two new document requirements for imported electronic components in 2026: **The certificate of origin must be marked "Under the China-ASEAN Free Trade Agreement" and affixed with an electronic seal**、**The import quarantine list must be uploaded to the National Aquaculture and Quarantine Inspection Service (NAQIS) system of Vietnam**.Enterprises handling document checking independently often get documents rejected for ignoring these two requirements.

- Manager Liu,document supervisor of Zhongshen,will pre-review 3 core types of documents against Vietnam’s latest policies within 1 hour after clients submit materials: bill of lading,commercial invoice & packing list,certificate of origin;
- For NAQIS system uploading,we coordinate with local partnered Vietnamese customs brokers in advance to confirm the update time of the system interface and avoid uploading failure;
- For the electronic seal requirement,we coordinate with the China Council for the Promotion of International Trade (CCPIT) to activate the 2026 new version of electronic seal system,ensuring compatibility with Vietnam’s customs system.

### 2.Customs Clearance Coordination Module: Document Checking Risk Points at Vietnamese Ports

In 2026,Ho Chi Minh Port and Haiphong Port of Vietnam implement a dual-track system of "document pre-review + on-site random inspection".If the latest "commodity classification code" (HS code refined to 10 digits) is not updated during document checking,additional inspection will be triggered.Zhongshen’s countermeasures:

![20 Years of Foreign Trade Experience: Compliance Guide for Ocean Export Document Checking](https://cndpic.sh-zhongshen.com/uploads/tradepics/EEVPz0GmdSdCG.webp)

| Vietnamese Port | Special Document Checking Requirements 2026 | Zhongshen’s Solution | Average Customs Clearance Lead Time Improvement |
| --- | --- | --- | --- |
| Ho Chi Minh Port | Provide "commodity traceability QR code" (bound to production batch) | Generate QR code meeting Vietnamese standards for clients in advance,upload to port system synchronously | 24h → 12h |
| Haiphong Port | HS code must match Version 5 of Vietnam’s Import Commodity Catalogue | Update HS code database weekly,check code accuracy 1 day before document checking | 30h → 16h |

### 3.Tax Refund Coordination Module: Document Checking Details for Tax Refund in Vietnam Trade

In 2026,the China-Vietnam FTA was upgraded,and the export tax refund rate for electronic components exported to Vietnam remains at 13%.However,a key note for document checking: **The "Trade Mode" column on the customs declaration must be marked "Under Free Trade Agreement",otherwise the tax refund review will be affected**.Zhongshen’s practices:

- We check the consistency of "trade mode" between the customs declaration and the tax refund declaration system during document checking to avoid tax refund delay caused by labeling errors;
- We connect with the 2026 new version of tax refund system of Shanghai Tax Bureau,upload the electronic version of checked documents in advance to shorten the review cycle;
- For the common problem of "amount discrepancy between invoice and customs declaration",we provide one-on-one checking service to ensure the discrepancy is within 0.5%,which meets the tax bureau’s requirements.

## How Can Agent Document Checking Improve Customs Clearance and Tax Refund Efficiency?

After Factory Director Zhang hired Zhongshen as his agent last year,the document checking process was simplified from the original 4 steps: "client submission → agent checking → client modification → re-checking" to 3 steps: "Zhongshen pre-review → client confirmation → synchronous customs clearance/tax refund".The average customs clearance lead time was shortened from 2 days to within 1 day,and the tax refund arrival time was shortened from 15 working days to 10 working days.Manager Liu summarized: "The core is to integrate Vietnam’s policy requirements into the document checking stage in advance,instead of supplementing documents after the cargo arrives at the port."

## Customized Document Checking Service: Matched to Your Products and Destination Country

Whether you export electronic components to Vietnam or machinery products to Thailand,Zhongshen’s document checking service will be adjusted according to the latest 2026 policies of the destination country.For example,exporting to Thailand requires an additional phytosanitary certificate if the product uses wooden packaging; exporting to Malaysia requires checking the validity of ASEAN Certificate of Origin FORM E,which was adjusted to 1 year in 2026.If you are troubled by document checking for ocean export,contact Manager Jian of Zhongshen for a customized exclusive document checking solution.

## Related Resources
- [Agent Knowledge](https://www.sh-zhongshen.com/en/agency-knowledge/)
- [Trade Services](https://www.sh-zhongshen.com/en/services/)
- [Trade Cases](https://www.sh-zhongshen.com/en/cases/)
- [Trade Wiki](https://www.sh-zhongshen.com/en/wiki/)
- [Trade Class](https://www.sh-zhongshen.com/en/guide/)
- [Global Trade Services](https://www.sh-zhongshen.com/en/country/)
- [Trade Q&A Hub](https://www.sh-zhongshen.com/en/qa/)

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