New Material Import Customs Clearance Agent: 2026 Full-Process Practical Guide

As a core raw material for electronics,new energy,high-end manufacturing and other fields,domestic import volume of new materials in 2026 has increased by more than 15% compared with 2023.However,new material customs clearance involves links such as accurate HS code classification,quarantine standard adaptation and implementation of special supervision conditions,so many enterprises face delays,fines and even cargo detention due to unfamiliarity with the process.Combining more than 20 years of foreign trade agency experience,Zhongshen has systematically sorted out the full process of new material import customs clearance agency,helping customers avoid risks and improve efficiency.

I.Core Stage Breakdown of New Material Import Customs Clearance Agency

1.Pre-preparation: Pre-compliance is the Key to Speeding up Customs Clearance

Objective: Ensure all documents meet customs and quarantine requirements,and avoid potential risks in advance

Key Actions:

• Review new material technical parameters,certificate of origin,packing list and other documents provided by customers
• Confirm HS code with Zhongshen’s coding experts (the 2026 updated customs code catalogue requires key verification)
• Coordinate with overseas suppliers to confirm quarantine compliance documents (such as RoHS certification for new materials used in electronic factories)

Common Problems:

• Customers mistakenly classify ordinary plastic particles as "modified new materials",leading to wrong HS code
• Overseas suppliers fail to provide the latest quarantine certificate,making declaration impossible after cargo arrives at the port

Zhongshen’s Value: We have established a "Document Pre-review Checklist".When Ms.Zhu imported new energy battery separators last year,we found the RoHS certification provided by the supplier expired during pre-review,and coordinated for update in advance to avoid delay after cargo arrival.Our coding expert team can carry out accurate classification based on the "composite material" and "modification process" of new materials.We have handled code confirmation for more than 120 similar new materials in 2026,with 100% accuracy.

2.Pre-arrival Declaration: Advance Operation Shortens the Overall Cycle

Objective: Complete electronic declaration and pre-quarantine before cargo arrives at the port,to reduce waiting time after arrival

Key Actions:

• Submit declaration data through the single window (customs requires all new material declarations to be uploaded with technical parameter PDF synchronously in 2026)
• Coordinate with the quarantine department for pre-audit (some new materials require prior risk assessment)
• Confirm tariff rate and value-added tax (some new energy new materials enjoy tariff reduction and exemption in 2026)

Common Problems:

• Declaration data does not match actual cargo (such as weight error exceeding 3%)
• Pre-quarantine fails,requiring re-sampling and testing after cargo arrival

Zhongshen’s Value: The declaration team led by Mr.Mo can connect with the customs single window and quarantine system synchronously.In 2026,85% of new material pre-declarations have been approved.For tariff reduction and exemption policies,we help customers prepare "technical explanation documents" in advance.Mr.Lan saved more than 20,000 yuan in tariffs on photovoltaic new materials he imported last year for this reason.

3.Post-arrival Inspection: Rapid Response Avoids Cargo Detention

Objective: Cooperate with customs inspection,complete tax payment in time,and realize quick release

Key Actions:

• Coordinate with customs inspection notification within 1 hour after cargo arrives at the port
• Arrange special personnel to cooperate with on-site inspection (need to carry new material samples and technical parameters)
• Pay tariffs and value-added tax online (electronic letter of guarantee deduction is supported in 2026)

Common Problems:

• New material packaging is found not meeting quarantine requirements during inspection (such as no Chinese label attached)
• Insufficient electronic letter of guarantee quota leads to failure to pay tax in time

Zhongshen’s Value: Supervisor Zuo (Zhongshen’s inspection contact) can remind customers to prepare for packaging rectification 24 hours before inspection.In 2026,the inspection delay rate caused by packaging problems has dropped to less than 5%.We provide tariff payment agency service,supporting electronic letter of guarantee and credit line.When Mr.Gan imported electronic new materials last year and faced insufficient temporary quota,Zhongshen advanced the tax payment,avoiding cargo detention at the port and container detention charges.

4.Follow-up Work: Closed-loop Service Ensures Smooth Delivery

Objective: Complete cargo storage,distribution and document archiving,and realize closed loop of customs clearance process

Key Actions:

• Coordinate with customs supervised warehouses (Zhongshen has established a priority scheduling mechanism with 3 supervised warehouses in Shanghai Yangshan Port in 2026)
• Arrange special vehicle delivery to the warehouse designated by customers (constant temperature transport is provided for special new materials)
• Sort out and archive customs clearance documents (including customs declaration form,quarantine certificate,tax payment voucher,etc.)

Common Problems:

• Tight scheduling of supervised warehouses leads to failure to put cargo into storage in time
• Lost customs clearance documents affect subsequent tax refund or verification and write-off

Zhongshen’s Value: The priority scheduling mechanism with Yangshan Port supervised warehouses can shorten the storage time from the conventional 4 hours to 1 hour.We have established a "document electronic archiving system",where customers can check customs clearance documents online at any time,and no document loss has occurred in 2026.

II.Core Differences Between Self-operated Customs Clearance and Agency Customs Clearance

III.Core Precautions for New Material Import Customs Clearance

• The "modification process" and "composite material" of new materials shall be clearly marked in the technical parameters to avoid wrong HS code classification
• Overseas suppliers shall provide the latest 2026 quarantine certificate and RoHS certification (some new materials require additional REACH certification)
• For tariff reduction and exemption,"technical explanation documents" shall be prepared in advance to prove that new materials are used in encouraged industries such as new energy and high-end manufacturing
• For special new materials (such as lithium battery separators),customs supervision conditions shall be confirmed in advance (the new "environmental compliance filing" requirement is added in 2026)

The 2026 new customs regulations put forward higher standards for the technical parameters and quarantine requirements of new materials.Enterprises adopting self-operated customs clearance often face delays due to unfamiliarity with the new regulations.With more than 20 years of industry experience,Zhongshen provides customers with full-process closed-loop services from early document pre-review to later storage and distribution.We have helped more than 300 customers complete new material import customs clearance,shortening the cycle by 50% on average and reducing losses by more than 80%.If you have new material import needs,you can contact a professional agency team to avoid delays and risks caused by unfamiliarity with the process.