---
title: "Detailed Explanation of Import PET Customs Clearance Agency Process and Notes - Zhongshen Trading China"
description: "In 2026，the domestic demand for imported PET in packaging，textile and other industries continues to grow steadily. However，PET import customs clearance involves multiple links such as qualification review，tariff calculation，supervision and inspection，and any minor omission can easily lead to cargo detention and extra costs. Many enterprises are put in a passive position when operating on their own due to unfamiliarity with the newly added environmental compliance requirements of the year. Manage..."
url: "https://www.sh-zhongshen.com/en/customs-declaration-knowledge/import-pet-customs-clearance-process-and-notes.html"
language: "en"
type: "Article"
category: "Customs Declaration Basics"
datePublished: "2026-10-08"
dateModified: "2026-10-08"
brand: "Zhongshen Trading China"
image: "https://cndpic.sh-zhongshen.com/uploads/tradepics/LWb5Y251dOLgy.webp"
---

# Detailed Explanation of Import PET Customs Clearance Agency Process and Notes

## Import PET Customs Clearance Agency: Full Process Breakdown and Professional Service Value

As a core polyester material,PET will maintain a growing demand in application fields such as food packaging,textile fibers and engineering plastics in 2026.However,import PET customs clearance is not a simple document submission.It involves multiple links such as customs qualification review,accurate HS code classification,tariff preference application,and environmental compliance verification.Any omission will lead to port container detention fees in minor cases,and customs penalties for violations in severe cases.Many enterprises that try to operate on their own are often put in a passive position due to unfamiliarity with the newly added PET import supervision requirements in 2026.This article will systematically sort out the core process of import PET customs clearance,as well as the service value of Zhongshen in each link.

![How to Save Cost and Improve Efficiency for Import PET Customs Clearance in 2026](https://cndpic.sh-zhongshen.com/uploads/tradepics/LWb5Y251dOLgy.webp)

### I.Pre-import Preparation Stage: Pre-review of Qualifications and Documents

**Stage Objective**: Ensure that the enterprise has the legal qualification to import PET,and all documents meet the latest requirements of customs and environmental protection departments in 2026,so as to avoid stagnation of subsequent processes due to document problems.

- **Key Actions**:
Review import enterprise qualifications: confirm whether they have import and export operation rights and filing registration of foreign trade operators (electronic signatures need to be updated synchronously in some regions in 2026)
- Accurate HS code classification: match the latest 2026 tariff schedule according to the form of PET (slice/granule/finished product) and composition (recycled/virgin).Some recycled PET codes have been adjusted compared with 2025
- Collect basic documents: certificate of origin,packing list,commercial invoice,bill of lading,ocean/air waybill,as well as the newly added PET environmental protection test report in 2026 (issued by CNAS accredited institutions)

- **Common Problems**:
The enterprise fails to update the import and export operation right filing in time,resulting in failure to submit declarations in the customs system
- Incorrect HS code classification leads to wrong tariff calculation (the tariff difference between some virgin PET and recycled PET reaches 8% in 2026)
- The environmental protection test report does not mark the newly added "recyclable label compliance" clause in 2026,and is rejected by the customs

**Role of Zhongshen**: Manager Xiao is responsible for docking with enterprises,completing qualification and document review 10 working days in advance.For the newly added environmental protection requirements in 2026,he assists enterprises to connect with CNAS accredited institutions to supplement test reports.The customs declaration team has 15 years of experience in PET customs clearance,and can accurately match the HS code according to product parameters.Since 2025,it has avoided more than 3 million CNY of tariff deviation for customers.

### II.Pre-arrival Declaration Stage: Accurate Calculation of Customs Declaration Form and Tariff

**Stage Objective**: Complete electronic declaration before the arrival of the goods,use the 2026 free trade agreement preferential policies to reduce tariff costs,and avoid port container detention fees.

- **Key Actions**:
Submit electronic data of customs declaration form,including 12 core information such as product name,quantity,value,origin,HS code,etc.
- Calculate tariff and value-added tax: Under RCEP in 2026,some PET imported from ASEAN countries can enjoy zero tariff,and the origin declaration needs to be submitted synchronously
- Apply for tariff quota: If the enterprise meets the PET import quota conditions of the National Development and Reform Commission,the application shall be submitted 30 days before the arrival of the goods

- **Common Problems**:
The electronic declaration data is inconsistent with the paper documents (for example,the quantity error exceeds 0.5%),and the customs rejects the declaration and requires re-submission
- Failure to apply for RCEP origin declaration in time,missing the zero tariff preference (the benchmark tariff for ASEAN PET import is 12% in 2026)
- Incomplete tariff quota application materials,missing the quarterly quota deadline

**Role of Zhongshen**: Manager Tao is responsible for the operation of the electronic declaration system,and has established a "document-declaration data" double-check mechanism,with a declaration pass rate of 99%.The tariff calculation team updates the 2026 free trade agreement tax rate in real time.In 2025,it applied for RCEP preferences for 12 customers,saving an average of 12% of tariffs.It reminds enterprises to prepare quota materials 30 days in advance and assists in submitting them to the customs,with a quota application success rate of over 95%.

### III.Port Inspection and Release Stage: Compliance Verification and Fast Customs Clearance

![How to Save Cost and Improve Efficiency for Import PET Customs Clearance in 2026](https://cndpic.sh-zhongshen.com/uploads/tradepics/LwmmYpwAVDJgx.webp)

**Stage Objective**: Smoothly pass the customs inspection,avoid cargo detention at the port and resulting container detention fees (the daily container detention fee at the Port of Shanghai increases by 50-100 CNY per container in 2026).

- **Key Actions**:
Cooperate with customs inspection: unpacking inspection (check quantity and packaging) or document verification (confirm environmental protection report and certificate of origin)
- Handle inspection problems: If it is found that the PET packaging is not marked with the newly added "dangerous goods label" in 2026 (some PET granules are Class 4.1 dangerous goods),on-site rectification is required
- Pay taxes and release: Pay tariffs and value-added tax through the customs tax payment system,and obtain the release note

- **Common Problems**:
Damaged PET packaging is found during unpacking inspection,which does not meet the 2026 dangerous goods transportation packaging standards
- The label does not indicate the "2026 recyclable ratio",and the customs requires additional labels before release
- Delayed tariff payment (such as insufficient enterprise account balance) leads to 3-5 days of release delay

**Role of Zhongshen**: Supervisor Shen accompanies the customs inspection throughout the whole process,sorts out the detailed materials required for inspection (such as packaging test reports) in advance,reducing the inspection time by 30%.He informs enterprises of the latest 2026 PET packaging and labeling standards in advance,and assists in rectification to avoid inspection problems.It provides tariff payment agency services,tracks the payment status in real time to ensure no delay in release.In 2025,the average PET customs clearance time at the Port of Shanghai was 2 days faster than the industry average.

### IV.Subsequent Settlement and Verification Stage: Foreign Exchange and Compliance Closing

**Stage Objective**: Complete foreign exchange receipt and payment and customs verification to ensure capital compliance,and apply for import value-added tax deduction if eligible.

- **Key Actions**:
Foreign exchange receipt and payment: Handle receipt and payment of foreign exchange through the bank according to the amount on the customs declaration form (electronic files of trade documents need to be uploaded synchronously in 2026)
- Customs verification: Submit the verification form,customs declaration stub,and foreign exchange receipt and payment vouchers to the customs system
- VAT deduction: If the enterprise is a general taxpayer,sort out the customs VAT payment certificate to apply for deduction

- **Common Problems**:
The error between the foreign exchange receipt and payment amount and the customs declaration amount exceeds 0.3%,leading to verification failure
- The customs VAT payment certificate is not applied for deduction within 360 days,missing the deduction period
- Lost verification form affects the customs credit rating of subsequent import business

**Role of Zhongshen**: Supervisor Bao is responsible for foreign exchange receipt,payment and verification,ensuring that the amount fully matches the customs declaration form,with a 100% verification pass rate.He assists enterprises to sort out all materials required for VAT deduction and submit them to the tax department in time.A document archiving system is established,and all verification forms and customs declaration stubs are kept for 5 years,which is convenient for enterprises to query and audit later.

## Self-operation vs Zhongshen Agency: Core Difference Comparison

| Comparison Dimension | Self-operation by Enterprises | Zhongshen Agency Service |
| --- | --- | --- |
| Average Customs Clearance Time | 5-7 working days | 2-3 working days |
| Tariff Error Rate | 15%-20% | Within 0.5% |
| Container Detention Fee Risk | High (about 30% probability of occurrence) | Low (only 5% probability and early warning) |
| Compliance Risk | High (easy to violate the new 2026 supervision requirements) | Low (professional team updates policies in real time) |
| Annual Average Cost Saving | None | About 8%-15% of the cargo value |

## Conclusion: Professional Agency is the Core Guarantee for Import PET Customs Clearance

Each link of import PET customs clearance involves policy details and practical operation experience.The newly added environmental compliance requirements,free trade agreement tariff adjustment and other changes in 2026 further increase the operation difficulty.Zhongshen has been deeply engaged in foreign trade agency for more than 20 years,and is familiar with the whole process supervision logic of PET import.From qualification review to verification closing,each link is handled by a dedicated person,which can help customers avoid risks such as document errors,wrong tariff calculation,inspection delay,and save time and cost.If you have demand for imported PET,you may contact a professional agency to make the process smoother.

## Related Resources
- [Customs Declaration Basics](https://www.sh-zhongshen.com/en/customs-declaration-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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