Installment Payment Import Customs Declaration Agency: Practical Guide for Chemical Compliance

I.Practical Pain Points of Installment Payment Import of EU Fine Chemical Products

2026 Shanghai port import data shows that the import volume of fine chemical products produced in the EU increased by 18.7% year-on-year due to low technical barriers and stable performance,of which 62% adopted the installment payment model of "30% advance payment for the first installment and 70% balance payment against documents".The import pain points of such high-value goods are concentrated in three links:

• Document matching deviation: The bill of lading corresponding to the first payment is inconsistent with the origin certificate information of subsequent batches,and the customs document review and return rate reaches 23%;
• Mismatched commodity inspection cycle: Hazardous chemicals require pre-import inspection.If batch documents are not submitted synchronously during installment payment,it is easy to cause goods to stay at the port for more than 5 days;
• Foreign exchange receipt and payment risk: Some enterprises cannot complete foreign exchange declaration in time due to delayed documents,which affects the payment limit for subsequent batches.

II.Process Breakdown of Zhongshen Agency Services

1.Document Pre-review Stage: Proactively Avoid Compliance Risks

Specific requirements for EU fine chemical product imports include: SDS (Safety Data Sheet) complying with the 2026 REACH regulation updates,hazardous chemical classification and identification report,and consistency of HS codes for each batch of goods under the installment payment model (some products require subdivided codes due to differences in purity).

Support provided by Zhongshen: Supervisor Yu takes the lead in verifying the SDS and contract terms of each batch,and helps enterprises supplement test reports in advance for the 3 newly added restricted substances under REACH; it coordinates with Shanghai Customs to pre-verify HS codes to avoid miscalculation of tariffs caused by code errors.

2.Port Customs Declaration Stage: Coordinate with Customs to Optimize Document Review

Customs declaration documents under installment payment need to meet the following requirements: The customs declaration form is marked with the note of "installment payment",and the invoice amount of each batch matches the payment voucher; the anti-dumping duty rate for some EU chemical products was adjusted to 8.2% in 2026,so additional anti-dumping duty payment certificates are required.

Support provided by Zhongshen: Ms.Shi connects with the dedicated customs window,and uploads the installment payment contract filing form in advance,increasing the document review priority by 40%; for anti-dumping duty declaration,it verifies the manufacturer information on the origin certificate in advance to avoid duty miscalculation caused by inconsistent origin.

3.Commodity Inspection Link: Synchronize and Connect Payment Nodes

Commodity inspection requirements for fine chemical products: The sampling ratio for each batch is 5%,and the inspection report needs to be associated with the payment batch.If the inspection report corresponding to the first payment has not been issued,a qualification certificate needs to be supplemented when paying the balance.

Support provided by Zhongshen: General Manager Bi connects with the hazardous chemical laboratory of Shanghai Entry-Exit Inspection and Quarantine Bureau,coordinating to shorten the sampling cycle from 3 working days to 1.5 working days; it simultaneously feeds back the inspection progress to the enterprise’s finance department to ensure that the report has been issued when the balance is paid,avoiding container detention fees.

III.Actual Case: Risk Avoidance for Installment Payment Chemical Import

At the end of 2025,General Manager Tang of a new material company in Shanghai planned to import 5 batches of fine chemical products from Germany,adopting the model of "30% first payment,70% balance payment against documents".However,since the SDS of the first two batches did not update the description of restricted substances under the 2026 REACH regulations,the supplier informed that they needed to be reissued.According to the conventional process,document update would take 10 working days,resulting in a container detention fee of 2000 yuan per day.

After General Manager Tang contacted Zhongshen,Supervisor Yu connected with the compliance department of the German supplier on the same day,assisted in supplementing the test report,and submitted an installment payment filing application to the customs,shortening the pre-review cycle to 3 working days.Finally,customs declaration was completed 2 days after the first batch of goods was paid for,and commodity inspection and payment for subsequent batches were seamlessly connected,saving a total of more than 30,000 yuan in container detention fees.

IV.Comparison of Compliance Requirements for Installment Payment Import of Chemical Products

V.Core Value of Professional Agency Services

In the 2026 Shanghai import market,the installment payment model is widely adopted because it reduces capital pressure,but compliance requirements for products such as chemicals are complex,and self-operation by enterprises is prone to additional costs.With 20 years of experience,Zhongshen intervenes in the whole process from document pre-review to commodity inspection connection,helping enterprises avoid more than 80% of common risks,shortening the average import cycle from 12 working days to 7 working days,and effectively improving import efficiency.