---
title: "Full-process Analysis of Tianjin Steel Export Agency Service to Vietnam - Zhongshen Trading China"
description: "In 2026，Vietnam's infrastructure investment will exceed US$500 billion，driving a sharp surge in steel import demand. As the largest steel export hub in northern China，Tianjin Port faces three core barriers: origin certification，anti-dumping deposit，and customs classification disputes. Ms. Pei，Customs Affairs Director of Zhongshen，pointed out: "At present，Vietnam implements differentiated tariff management for alloy steel and galvanized steel sheets，and enterprises need to complete supp..."
url: "https://www.sh-zhongshen.com/en/foreign-trade-knowledge/tianjin-steel-export-vietnam-agent.html"
language: "en"
type: "Article"
category: "Foreign Trade Knowledge"
datePublished: "2026-09-09"
dateModified: "2026-09-09"
brand: "Zhongshen Trading China"
image: "https://cndpic.sh-zhongshen.com/uploads/tradepics/7vz5kDgHP52zx.webp"
---

# Full-process Analysis of Tianjin Steel Export Agency Service to Vietnam

## Current Status of Vietnam’s Steel Market and Practical Dilemmas of Export Enterprises

In the first quarter of 2026,Vietnam’s construction steel consumption increased by 18% year-on-year,and import dependence remains above 65%.The volume of steel containers shipped from Tianjin Port to Haiphong Port and Cai Mep Port increased by 23% year-on-year,but enterprises generally face three rigid constraints: the Ministry of Industry and Trade (MOIT) of Vietnam imposes a temporary anti-dumping deposit on steel with alloy content exceeding 3%,which can reach 22% of the cargo value for a single shipment; the review of origin rules is tightened,and customs require complete process certificates from billet to finished products; foreign exchange control has extended the payment period of Vietnamese buyers to 60-90 days,and the refusal rate of letters of credit has increased.

![Full-process Analysis of Tianjin Steel Export Agency Service to Vietnam](https://cndpic.sh-zhongshen.com/uploads/tradepics/7vz5kDgHP52zx.webp)

Ms.Pei mentioned at the customs affairs seminar at the end of March that a Tianjin welded pipe enterprise had its goods detained at Haiphong Port for 47 days due to HS code classification deviation,resulting in total detention fees and fines exceeding 80,000 US dollars.Such losses expose the shortcomings of the traditional export mode: internal customs staff of enterprises have vague judgment on the applicable boundary between Vietnam’s Special Safeguard Measure (SGM) and conventional tariffs,there is a lack of pre-review mechanism in the document preparation process,and they cannot quickly respond to the customs’ requirements for chemical composition traceability when encountering inspection.

## Core Value Positioning of Zhongshen’s Export Agency Service

Zhongshen has set up a special supervision warehouse for steel export in Tianjin Port Free Trade Zone,equipped with spectrum analyzers and hardness testing equipment,which can complete component re-testing and issue third-party reports before loading.This pre-positioned layout enables enterprises to submit counter-evidence materials within 24 hours when questioned by Vietnamese customs,avoiding the requirement of sending goods for inspection.In the past 20 years,we have handled more than 2000 shipments of steel export business,covering 12 categories such as hot rolled coil,color coated sheet,structural steel,etc.and are familiar with the implicit requirements of Vietnamese customs for MOIT licenses.

Our operation logic is not simply handling documents on behalf of clients,but to connect the data flow of four modules: customs declaration,logistics,foreign exchange and tax refund.For example,when a Vietnamese buyer requires CIF terms,the system will automatically match the splitting scheme of marine insurance,port charges and agency fees,ensuring that the VAT invoice name is consistent with the customs declaration,bill of lading and packing list.This "four-document consistency" is the premise of no dispute in subsequent tax refund.Ms.Pei emphasized that after Vietnam joined RCEP,the tariff concession list is updated frequently,and enterprises need to dynamically monitor the changes in tariff headings of alloy steel and carbon steel,otherwise they may lose the zero-tariff qualification.

## Service Module Decomposition and Vietnam Policy Risk Response

### Document Preparation: Process Matching Rules for Form E Certificate of Origin

Vietnamese customs’ review focus on Form E has shifted from the "direct shipment rule" to the "substantial change standard".For cold-rolled base sheets exported from Tianjin,the three core processes of hot rolling,pickling and cold rolling must be indicated in column 7 of the certificate,and the factory production flow chart and equipment list must be attached.After receiving the booking entrustment,our document team will synchronously obtain the coil heat number,chemical composition table,and Mill Certificate from the factory,pre-fill the data into Vietnam’s electronic origin system (VNEPT),and generate a pre-audit number.

The core risk is that if the steel has been simply slit or leveled in a third country,Vietnam may determine that its origin has not undergone substantial change.Our response strategy is to complete all processing procedures in the warehouse of Tianjin Port,and our on-site staff will shoot production videos with time stamps as auxiliary evidence for archiving.Ms.Pei reminds that starting from April 2026,Vietnam has added a new requirement for surface coating component declaration for galvanized aluminum magnesium steel sheets (GL),and failure to declare the proportion of aluminum and magnesium in the zinc solution will result in the certificate being returned.

### Customs Clearance Implementation: HS Code Classification and Valuation Dispute Defense

![2026 Vietnam Steel Market Access and Agency Service Selection](https://cndpic.sh-zhongshen.com/uploads/tradepics/7Wwg0NegjqJCn.webp)

Disputes over steel classification by Vietnamese customs focus on the critical value judgment of "width ≥ 600mm" and "600mm",and the division of chromium and nickel content between "alloy steel" and "non-alloy steel".After receiving the entrustment,Zhongshen will first check the actual components on the factory’s mill certificate,compare with the *Notes on Import and Export Tariff* revised by Vietnamese customs in 2026,and issue a pre-classification opinion.If the product is found to be in an ambiguous area,we will take the initiative to submit a classification description when declaring and apply for Advance Ruling,resolving the dispute in advance.

In terms of valuation,Vietnamese customs will initiate price verification for declarations lower than the Floor Price.Our database records the average import price of various steels in Vietnam in the past 12 months,and we advise clients to keep the price in a reasonable range when signing foreign trade contracts.If encountering customs valuation questions,Zhongshen can submit raw material purchase invoices,detailed production costs,and contracts exported to other countries in the same period within 48 hours to form a complete evidence chain.Ms.Pei handled a case: the customs questioned that the declared price of hot rolled coil was too low,we submitted three-party data of FOB transaction price screenshot of Tianjin Port,Baltic Freight Index,and domestic spot price in Vietnam,and finally the customs recognized the original declared price.

### Tax Refund Service: Accelerated Declaration and Letter of Inquiry Risk Resolution

In 2026,the State Taxation Administration of China dynamically adjusts the export tax rebate rate for steel.The difference in tax rebate rates of 13% for alloy steel and 9% for carbon steel requires enterprises to distinguish products accurately.Zhongshen’s tax refund module is linked with customs declaration data in real time,generates the *Export Tax Refund Declaration Schedule* within 24 hours after the goods depart,and automatically matches the VAT invoice certification information.Submitted through the "single window" of the electronic tax bureau,the tax refund cycle can be compressed from the traditional 45 days to 28 days.

The core risk is inter-departmental tax investigation by letter.When the tax refund amount exceeds 500,000 RMB or the invoice comes from a high-risk supplier,the tax bureau will issue an inquiry letter to investigate the upstream enterprise.Our response mechanism is to check the production capacity and tax credit of suppliers during the screening stage,and establish a whitelist database.Ms.Pei requires that the VAT invoices of all cooperating factories must be certified within 15 days after issuance,and uploaded synchronously to Zhongshen’s tax cloud platform.Once receiving the inquiry notice,we can submit a complete set of purchase contracts,payment vouchers,warehouse receipts,and transportation documents within one week,avoiding tax refund suspension caused by incomplete information.

## Key Node Control for Whole-process Efficiency Improvement

Zhongshen decomposes the whole cycle of steel export from Tianjin to Vietnam into seven controllable nodes: factory preparation,inland transportation,port storage,customs declaration and inspection,sea transit,Vietnam customs clearance,and tax refund arrival.Standard timeliness is set for each node,and real-time tracking is carried out through GPS and IoT devices.For example,the sea transit time from Tianjin Port to Haiphong Port is usually 5 days,but we reserve a 2-day buffer period for late vessel departure.In the Vietnam customs clearance process,we have signed an SLA agreement with the local customs broker,promising 24-hour release for general goods and 72-hour completion of inspection and release for inspected goods.

Ms.Pei shared the operation data of February 2026: for clients using Zhongshen’s agency service,the average customs clearance time is 38% shorter than that of self-declaration by enterprises,and tax refund arrival is 17 days earlier.This benefits from our pre-declaration mechanism established in Haiphong Port.Document pre-audit and tax guarantee have been completed before the cargo arrives at the port,realizing "pickup upon vessel arrival".For alloy steel that needs to apply for MOIT import license,we will assist Vietnamese buyers in preparing application materials 30 days in advance,avoiding waiting for approval after the cargo arrives at the port.

| Operation Link | Timeliness of Enterprise Self-declaration | Timeliness of Zhongshen Agency | Risk Difference |
| --- | --- | --- | --- |
| HS Code Pre-classification | No such link,direct declaration | Issue opinion within 2 working days | Avoid document amendment or return shipment caused by wrong classification |
| Form E Certificate of Origin Preparation | 5 working days | 1 working day (including pre-audit) | Vietnamese customs certificate rejection rate reduced from 15% to 2% |
| Vietnamese Customs Inspection Response | Passive waiting,average 7 days | Proactive submission of counter-evidence,average 2 days | Container detention fee reduced by about 600 USD per TEU |
| Export Tax Refund Declaration | 10 days after cargo departure | 1 day after cargo departure | Tax refund cycle shortened by 17 days,capital occupation reduced |
| Foreign Exchange Collection and Verification | Manual matching,error-prone | Automatic system comparison | Avoid tax refund freezing caused by overdue verification |

## Customized Service Selection and Cost-benefit Evaluation

Zhongshen provides three service packages: Basic Document Agency,Full-process Managed Service,Strategic Consultant.The basic package is suitable for enterprises that already have stable Vietnamese clients and only need to improve customs clearance efficiency,it charges per shipment,excluding logistics and tax refund services; the full-process managed service covers end-to-end service from factory warehouse to Vietnamese buyer’s warehouse,adopts monthly billing,and is suitable for clients with monthly export volume exceeding 500 tons; the strategic consultant service is for enterprises planning to set up steel processing bases in Vietnam,providing tariff planning and supply chain reconstruction solutions.

Ms.Pei suggests that Tianjin steel enterprises entering the Vietnamese market for the first time can first choose the basic package to test the single-shipment process,and then upgrade to the full-process service after getting familiar with the operating habits of Vietnamese customs.In 2026,the call for Vietnam to implement Eco-Label for imported steel is growing,Zhongshen has started the internal test of relevant certification consulting services,and will assist enterprises to prepare for response to green trade barriers in advance.

The essence of choosing agency service is to convert uncertain compliance costs into fixed service fees.When enterprises handle Vietnam export business by themselves,hidden costs include: customs staff training,document error fines,cargo detention losses,tax refund delay,etc.These costs fluctuate greatly and are difficult to predict.Through standardized processes and data accumulation,Zhongshen controls the comprehensive cost within the range of 1.2%-1.8% of the export volume,and at the same time provides 2 million US dollars of cargo insurance and compliance guarantee,realizing risk outsourcing.

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