---
title: "What are the full-process operation specifications and core precautions for import customs brokerage?"
description: "A first-time import of infant formula was detained at the port for 7 days due to the freight forwarder&#039;s customs clearance error，resulting in high port demurrage charges and missed stock preparation window for the e-commerce grand promotion，putting small and micro enterprises under dual pressure of compliance and cost. By entrusting a professional customs broker，completing document review and fee confirmation in advance，connecting core customs clearance nodes and formulating abnormal contingency..."
url: "https://www.sh-zhongshen.com/en/qa/import-customs-brokerage-process-specs-key-precautions.html"
language: "en"
type: "Q&A"
category: "Customs Declaration Q&A"
datePublished: "2026-06-21"
dateModified: "2026-06-21"
brand: "Zhongshen Trading China"
answerCount: 9
---

# What are the full-process operation specifications and core precautions for import customs brokerage?

## Question

 I am the head of a small and micro enterprise in Shanghai specializing in importing high-end maternal and infant products. Last month, when I imported a batch of infant formula from the Netherlands for the first time, I hired a freight forwarder to handle customs clearance incidentally. As a result, the goods were detained at the port for 7 days due to lax document review, which incurred nearly 20,000 RMB of port demurrage charges, and I also missed the stock preparation window for the June 18 (618) e-commerce grand promotion, with a direct loss of more than 150,000 RMB. I still feel frightened when I think about it now. This time I plan to find a professional customs broker to handle the next batch of import orders, but I have no idea about the process: I don't know what exclusive materials to prepare in advance, how to confirm the compliance qualification of the broker, how to quickly stop losses if I encounter port detention or valuation disputes again, and I am also afraid of hidden fees. I am eager to sort out the specific operation path and key points of risk prevention and control. 

## Answers
                            
### Answer 1 — Best Answer

First of all，the details of pre-document review: 7-10 days before the goods arrive at the port，submit documents such as **Certificate of Origin**，**Sanitary Certificate**，Chinese label filing certificate，packing list，commercial invoice and sales contract to the broker for review. Focus on checking the consistency between the certificate number and the goods information，especially the formula component labeling of infant formula must comply with China's national GB standards，to avoid port detention caused by inconsistent documents，at the same time，require the broker to issue an itemized charge list，clarify all charge items and standards，and eliminate hidden fees.

In terms of core node connection: the broker will contact the shipping company in advance to exchange for delivery order，and simultaneously submit advance declaration to the customs. After the goods arrive at the port，they will directly connect the inspection link，and it is necessary to ensure that the container seal is intact and consistent with the bill of lading label，if sampling inspection is involved，cooperate with the broker to complete sample delivery within 3 working days to reduce the risk of port detention.

Abnormal contingency plans need to be finalized in advance: agree that in case of valuation disputes，the broker shall issue defense documents including the original factory procurement contract and foreign exchange payment voucher within 24 hours，in case of port detention，it is necessary to activate the customs communication channel as soon as possible，and coordinate warehouse transfer at the same time to avoid superimposition of port demurrage charges.

Final compliant implementation: after customs clearance and release，the broker shall simultaneously provide the customs duty payment receipt，inspection and quarantine certificate and charge voucher，and all operation records shall be kept and archived to ensure compliance with tax and regulatory requirements，which is convenient for subsequent sales filing and cost accounting.

**status:** accepted
**Author:** Kevin Lin
**Date:** 2026-06-21

### Answer 2

For inspection-involved goods such as imported maternal and infant products, the accurate classification of commodity codes should be focused on in the customs declaration link. If infant formula is incorrectly classified as ordinary dairy products, it will not only lead to incorrect application of tax rates, but also may trigger customs valuation review and retrospective adjustment, increasing customs clearance time.

You should obtain the official classification code through the customs commodity classification pre-ruling service in advance to ensure the accuracy of declaration; in case of customs valuation disputes, you need to provide complete transaction chain vouchers including procurement orders, foreign exchange payment receipts, original factory invoices and ocean bills of lading, and the quantity and amount of goods in all vouchers must be completely matched, to avoid logical loopholes leading to declaration deletion and re-submission. In addition, pay attention to the time limit requirement for integrated customs clearance declaration, advance declaration should be completed 3 days before the goods arrive at the port, and逾期 will affect the inspection priority.

**status:** suggested
**Author:** Eric Zhou
**Date:** 2026-06-21

### Answer 3

When entrusting import customs brokerage, the cargo right control node should be locked in advance in the logistics link, especially when shipping from overseas, the freight forwarder should be required to issue a To Order bill of lading, and ensure that the bill of lading endorsement is only authorized to the entrusted customs broker, to avoid loss of cargo right. At the same time, clarify the management and control plan for the free storage period and container detention charge with the broker: apply to the shipping company in advance for an additional 2-3 days of free storage period for fast-moving consumer goods such as maternal and infant products.

If container detention charges are incurred due to customs clearance delays, require the broker to assist in applying for exemption from the shipping company. Some shipping companies can give a 50% reduction in container detention charges for compliant imported livelihood products. In addition, if the goods need to be transferred to another warehouse, ensure that the transfer vehicles have the transportation qualification recognized by the inspection and quarantine department, to avoid unqualified sampling inspection of goods during the transfer process.

**status:** suggested
**Author:** Daniel Xu
**Date:** 2026-06-21

### Answer 4

Imported infant formula can apply for the VAT deferred payment policy, there is no need to pay VAT in a lump sum at the customs clearance link, and the payment time limit can be postponed to the VAT declaration period, which eases the capital pressure of small and micro enterprises. Note that three conditions need to be met to apply for VAT deferral: first, the imported goods belong to the categories allowed for deferral, and maternal and infant products are within this scope; second, the enterprise has completed the customs credit rating filing and has no tax arrears record; third, it is necessary to submit the deferred tax payment declaration form during customs clearance declaration, and ensure that the VAT declaration is completed on time in the follow-up.

In addition, accurately calculate the tariffs, consumption tax and VAT in the import link, to avoid tax inspection caused by incorrect tax base calculation. You can require the broker to provide an itemized tax calculation list, and check it one by one against the customs duty payment receipt.

**status:** suggested
**Author:** Victor Sun
**Date:** 2026-06-21

### Answer 5

The compliance of the import foreign exchange payment link should be ensured, especially when importing goods from Europe, the payment should be completed through the Cross-Border Interbank Payment System (CIPS) for RMB, to avoid foreign exchange payment failure caused by inconsistent SWIFT message information. Provide accurate foreign exchange payment information to the customs broker in advance, including the full name of the overseas supplier, bank account number, SWIFT code (if paying in US dollars), trade terms of the goods (such as CIF Shanghai), and the foreign exchange payment amount must be consistent with the total value of the goods declared by the customs, no overpayment or underpayment is allowed.

If advance payment for goods is involved, file it in the Foreign Exchange Monitoring System for Goods Trade of the State Administration of Foreign Exchange (SAFE) in advance, to avoid being listed as an abnormal foreign exchange payment subject, which affects the foreign exchange payment authority for subsequent import business.

**status:** suggested
**Author:** Jason Wu
**Date:** 2026-06-21

### Answer 6

When signing an entrustment contract with a customs broker, three core clauses should be clarified: first, the cargo right ownership clause, which stipulates that before the completion of customs clearance, the cargo right still belongs to the importer, and the broker is only responsible for operation and has no right to dispose of the goods; second, the abnormal compensation clause, if the expenses caused by port detention and demurrage are incurred due to the broker's operation error, the broker shall bear 80% of the compensation liability; third, the confidentiality clause, which requires the broker not to disclose the importer's supplier information, goods quantity, procurement price and other commercial secrets. In addition, if the imported goods involve intellectual property rights, such as the brand trademark of milk powder, complete the customs intellectual property protection filing in advance, to avoid port detention due to suspected infringement, and you can require the broker to assist in completing the data sorting and submission of the filing process.

**status:** suggested
**Author:** Andy Guo
**Date:** 2026-06-21

### Answer 7

In the on-site inspection link of imported infant formula, focus on cooperating with the customs' sampling and inspection requirements, and prepare the Chinese label draft of the goods, original factory quality inspection report and other materials in advance, so that the customs can quickly check. If the container is unpacked for inspection, ensure that the goods in the container are stacked neatly, and the batch number of each box of goods is consistent with the document label, to avoid prolonged inspection time caused by messy stacking.

In addition, pay attention to the integrity of the container seal. If the seal is found to be damaged when arriving at the port, require the shipping company to issue a damage certificate immediately, and inform the customs broker simultaneously to activate the abnormal inspection contingency plan, to avoid being identified as goods replacement and detained at the port. If sampling inspection is required after inspection, cooperate with the broker to complete sample delivery within 24 hours to ensure smooth inspection process.

**status:** suggested
**Author:** Cindy Chen
**Date:** 2026-06-21

### Answer 8

The packaging of imported infant formula should comply with domestic and international transportation standards, especially in the ocean shipping link, five-layer corrugated cartons with moisture-proof and shock-resistant properties should be used, and desiccant should be placed in each carton to avoid deterioration of goods caused by the humid environment during ocean transportation. Provide the Material Safety Data Sheet (MSDS) of the goods to the customs broker in advance.

Although milk powder is not a dangerous product, MSDS can help the customs quickly determine the properties of the goods and speed up the inspection. In addition, pay attention to the pasting position of the Chinese label, which should be pasted on the prominent position of the outer packaging of the goods, and the content of the label should comply with the requirements of GB 7718-2011, including the ingredient list, nutrition information table, production date, shelf life, etc., to avoid rework caused by unqualified labels and increase additional costs.

**status:** suggested
**Author:** Evelyn Li
**Date:** 2026-06-21

### Answer 9

For the import customs clearance needs of small and micro enterprises, the customs clearance link should be linked with supply chain inventory management. Through the advance declaration service of the entrusted customs broker, the customs clearance cycle can be compressed from the conventional 7-10 days to 3-5 days, to ensure that the goods are quickly put into storage after arriving at the port, matching the stock preparation rhythm of the e-commerce platform.

Agree with the broker to provide customs clearance progress reports by batch, so that you can adjust the inventory replenishment plan according to the customs clearance progress, and avoid inventory overstock or out of stock. In addition, you can sign a long-term cooperation agreement with the customs broker to obtain preferential fees for batch customs clearance, reduce the customs clearance cost of a single import, and at the same time agree on the service clause of priority handling of urgent orders to meet the sudden stock preparation needs such as e-commerce grand promotions.

**status:** suggested
**Author:** Michael Zhang
**Date:** 2026-06-21

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