---
title: "Full Analysis of Customs Brokerage for Imported River Sand: Process Difficulties and Compliance Points - Zhongshen Trading China"
description: "In 2026，China's domestic infrastructure demand continues to expand，and the scale of river sand import grows steadily. However，radioactive testing，environmental compliance and port supervision constitute three major thresholds. Zhongshen has been focusing on mineral product customs clearance for over 20 years. Targeting the unique quarantine requirements and document specifications for Southeast Asian river sand import，we sorted out full-chain operation key points from pre-shipment pre-audit..."
url: "https://www.sh-zhongshen.com/en/customs-declaration-knowledge/river-sand-import-customs-agency-guide.html"
language: "en"
type: "Article"
category: "Customs Declaration Basics"
datePublished: "2026-06-27"
dateModified: "2026-06-27"
brand: "Zhongshen Trading China"
image: "https://cndpic.sh-zhongshen.com/uploads/tradepics/LRc8iyDioVOmO.webp"
---

# Full Analysis of Customs Brokerage for Imported River Sand: Process Difficulties and Compliance Points

## Background and Operational Difficulties of Southeast Asian River Sand Import

In 2026,infrastructure projects in East China are launched intensively,and the annual gap of construction sand has expanded to 30 million tons.China’s policy restricting domestic river sand mining remains tightened,so Pahang (Malaysia) and the Mekong Delta (Vietnam) have become main source regions.This cargo looks ordinary,but it actually falls under extended supervision of the Environmental Protection Control Standard for Imported Solid Waste Usable as Raw Materials issued by the Ministry of Ecology and Environment.Data from Shanghai Port in Q4 2025 shows that the inspection rate of mineral products increased by 12% year-on-year,among which return cases of river sand caused by excessive radioactive elements thorium and uranium accounted for 17% of total mineral product returns.

![2026 Construction Sand Import: Is Customs Brokerage Feasible](https://cndpic.sh-zhongshen.com/uploads/tradepics/LRc8iyDioVOmO.webp)

Operational difficulties concentrate on three levels: First,natural river sand is a legally inspected commodity,requiring dual inspection of foreign impurity quarantine and radioactivity; Second,some batches are mixed with coral fragments or shell remains,which may be identified as animal-derived impurities and trigger quarantine procedures from agricultural authorities; Third,there are disputes over the tax base of environmental protection tax,and customs adopt different duty-paid price standards for wet sand with moisture content over 8% and dry sand.A Suzhou-based building material enterprise once declared a batch of Vietnamese river sand by itself.Since the bill of lading did not mark the actual moisture content,it was suspected of underreporting price by customs,and the total of tax reimbursement and fine exceeded 15% of the cargo value.

## Core Role of Zhongshen in the River Sand Import Chain

Zhongshen has handled Malaysian river sand import since 2006,with cumulative customs clearance volume exceeding 800,000 tons.Our core role is not simply document submission,but upfront risk interception.The mineral product team led by Manager Niu established a database of major sand mining sites in Southeast Asia,covering radioactive background value,typical mineral composition and historical test fluctuation range of each mining area.In 2025,we intercepted three batches of goods with initial radioactive test value of 0.45μSv/h (regulatory threshold is 0.3μSv/h),coordinated the shipper to conduct magnetic separation impurity removal before shipment,and the final test value dropped to 0.22μSv/h,avoiding 30,000 RMB daily container detention fee caused by post-arrival detention.

Another key value lies in coordinating port relations.River sand is a bulk cargo,often involving water-to-water transshipment and anchorage lightering.Zhongshen maintains a monthly meeting mechanism with tally and inspection departments of Yangshan Port and Waigaoqiao Port,can lock inspection yard slots in advance,and compress the conventional 4-day inspection cycle to within 48 hours.This coordination capability directly determines whether the project schedule can be推进 on time amid worsening port congestion in 2026.

## Compliance Key Points in the Document Pre-audit Stage

Document pre-audit is the lowest-cost link for risk avoidance,and five types of documents require key verification:

- Certificate of Origin: Must mark the specific mining area name,not the general "Malaysia".Thorium content in different mining areas can differ by three times,which affects the passing rate of radioactive testing.
- Composition Test Report: Must include percentages of silicon dioxide,aluminum oxide,ferric oxide,and chloride ion content.The construction sand standard stipulates that chloride ion shall not exceed 0.06%,and seawater penetration during sea transportation may lead to non-compliance.
- Radioactive Test Report: Shall be issued by a third-party institution recognized by the shipment place,and test items must cover gamma ray air absorbed dose rate,specific activity of Thorium-232,Uranium-238 and Radium-226.Some Southeast Asian laboratories issue reports that do not test Radium-226,so re-testing will be required after arrival.
- Bill of Lading and Packing List: For bulk carrier transportation,the word "Bulk" must be indicated,and moisture content must be declared accurately.In 2026,customs requires two sets of pricing basis (dry weight and wet weight) for river sand with moisture content exceeding 15%.
- Sand Mining Permit: Malaysia requires exporters to provide a copy of the sand mining permit issued by the state government since 2025,to prove the legality of the source and prevent illegally mined river sand from entering the market.

Zhongshen’s pre-audit process adopts a double-review system.After the operator’s initial review,a senior staff with CIQ qualification conducts a second verification.In 2025,we found that the chloride ion data in the composition report provided by a Vietnamese supplier had a decimal point displacement,the actual value was 0.061%,which exceeded the standard by 0.001 percentage points.We timely required the supplier to rewash the sand,avoiding unqualified judgment after arrival.

## Implementation Details at the Port Customs Declaration Stage

![2026 Construction Sand Import: Is Customs Brokerage Feasible](https://cndpic.sh-zhongshen.com/uploads/tradepics/LRItpSRrqPfKn.webp)

The HS code of river sand is 2505.1000,tariff is 3%,VAT is 13%,and there is tentative no consumption tax in 2026.However,there is operational flexibility in environmental tax calculation.Take Shanghai Port as an example,for goods declared as "construction sand" with a construction site purchase contract provided,the tax is levied at 1.5 RMB per ton; for goods declared as "industrial raw material sand",it is 2.8 RMB per ton.Zhongshen will assist customers to select the optimal declaration name according to the final use of the goods.

Three details need attention when filling the customs declaration: First,the specification column must indicate "natural river sand,free of soil",to avoid being classified into the "other sand" category with high soil content; Second,in the transaction method column,for CIF terms,the breakdown of freight and insurance allocation must be indicated in the remark column,customs will focus on inspection for mineral products where freight accounts for over 20% of the cargo value; Third,the attached document column needs to be linked to the electronic account,the radioactive test qualification certificate must be entered into the system before customs declaration,otherwise the goods cannot be released.

During the inspection link,Zhongshen will prepare loading supervision photos and loading port video in advance for reference.In 2025,a batch of river sand shipped from Kuantan Port,Malaysia was suspected of carrying soil during inspection at Yangshan Port.We immediately retrieved underwater video footage taken during loading,proved that the black particles are natural magnetite in river sand,not soil impurities,and finally avoided the extra time consumption of sampling and testing.

## Commodity Inspection and Subsequent Supervision Response

Commodity inspection is the most uncontrollable node for river sand import.Statutory testing includes three items: radioactivity,foreign impurities,and chloride ion.Radioactive testing is performed by the nuclear radiation laboratory of the port customs technology center,the sampling standard is no less than three points per batch,1kg sample per point.The testing cycle is usually three working days.Zhongshen’s response strategy is: for first-time cooperating suppliers,we require pre-shipment sampling and pre-inspection at the shipping port by SGS or Bureau Veritas,and apply for a priority inspection channel with the pre-inspection qualification report,which can shorten the cycle to two working days.

Foreign impurity quarantine focuses on screening for animal carcasses,plant seeds,and plastic waste.In 2026,customs launched AI image recognition assisted inspection for mineral products from tropical regions,which automatically alarms for suspected animal and plant residues.Zhongshen arranges loading supervisors at the Malaysian loading port,who use high-pressure water guns to flush the surface of sand to remove floating impurities and reduce the probability of alarm.

If the test is unqualified,there are two disposal options: for excessive radioactivity,return shipment is mandatory,no room for technical rectification; for excessive chloride ion or impurities,technical rectification can be implemented under customs supervision,such as fresh water flushing and sieving impurity removal.Zhongshen has a co-operated flushing site at Taicang Port,equipped with circulating water sedimentation tanks that meet environmental requirements.In 2025,we assisted customers to rectify three batches,recovering about 4 million RMB of cargo value.

## Practical Case: Complete Process of Avoiding Return Shipment Risk

In Q3 2025,Mr.Liu from a large construction engineering group in Shandong purchased 20,000 tons of Malaysian river sand for a key municipal project,with the contract stipulating arrival date as October 15.After the goods departed from Kuantan Port on September 28,Zhongshen found during pre-audit of the accompanying documents that the test date of the radioactive report provided by the supplier was August 10,which was more than 45 days apart from the shipment date.According to customs regulations,this is an expired report,and re-testing is mandatory after arrival.

Manager Niu immediately launched two actions: First,consulted with customs to book the inspection,and locked the October 17 inspection slot in advance; Second,coordinated with the shipping company to add a berth during transshipment in Hong Kong,arranged inspectors to board the ship for sampling,to obtain pre-inspection data before arrival.When the ship berthed at Yangshan Port on October 16,we already held the pre-inspection qualification report issued in Hong Kong,and customs agreed to waive anchorage waiting and allow direct berthing and unloading.Finally,all procedures for this batch were completed on October 19,delivered to the construction site four days earlier than the conventional process,guaranteeing the project node.

The core of this case is accurate calculation of the time window.If following the conventional process,applying for inspection after arrival requires 3 to 5 days of queuing,plus 3 days of testing,totaling 8 days,which would seriously delay the construction period.Through pre-inspection and appointment mechanism,Zhongshen converts uncontrollable factors into controllable processes.

## Summary of the Value of Zhongshen’s Professional Brokerage Service

Whether river sand import can be cleared smoothly depends on the mastery of technical details rather than simple customs declaration operation.The value of Zhongshen is reflected in three dimensions: First,risk prediction capability,identify high-risk suppliers and goods based on historical data,and intervene for rectification in advance; Second,process optimization capability,compress time cost through pre-shipment pre-inspection,port relationship coordination,inspection appointment and other means; Third,emergency response capability,provide rectification sites and technical solutions when non-compliance occurs,and minimize losses.

In 2026,customs supervision of mineral products tends to be more intelligent and stricter,and the trial-and-error cost for enterprise self-declaration has increased significantly.The service fee of a professional broker accounts for less than 3% of the vessel delay loss and construction delay penalty caused by cargo detention at the port,but it can effectively avoid extreme risks such as return shipment and confiscation.For enterprises with annual import volume exceeding 50,000 tons,entrusting a broker with practical experience and data accumulation like Zhongshen is a rational choice to guarantee supply chain stability.

| Port Name | Average Inspection Cycle | Radioactive Testing Fee | Environmental Tax Calculation Standard | 2026 Congestion Warning Level |
| --- | --- | --- | --- | --- |
| Shanghai Yangshan Port | 2-3 working days | ¥1,200/batch | Construction sand 1.5 RMB/ton | Yellow Warning |
| Guangzhou Nansha Port | 3-4 working days | ¥1,050/batch | Construction sand 1.8 RMB/ton | Orange Warning |
| Xiamen Haicang Port | 2 working days | ¥1,300/batch | Construction sand 1.6 RMB/ton | Blue Warning |

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