Ensure Smooth Durian & Longan Imports: Compliance Testing Solutions

[News Background]

Recently, Chinese customs authorities have repeatedly identified compliance violations in durian and longan imported from Thailand and Vietnam. Multiple shipments have been rejected and returned, severely impacting exporters’ profitability and customs clearance efficiency.

In the second half of 2025, several batches of Vietnamese durian were rejected due to excessive cadmium (a heavy metal). Meanwhile, Thai longan has frequently appeared on China’s non-entry list due to sulfur dioxide residues exceeding the limits set by China’s Standards for the Use of Food Additives (GB 2760), failing to meet the General Administration of Customs of China (GACC) import requirements.

For Southeast Asian fruit exporters, how to effectively prevent excessive pesticide residues, heavy metals, and Basic Yellow 2 contamination—and successfully pass Chinese customs inspection—has become an urgent challenge.

[Analysis of Causes]

Vietnamese Durian:

Excessive heavy metals in soil and improper use of pesticides (such as thiamethoxam) have led to pesticide residue and heavy metal levels exceeding allowable limits. As a result, shipments fail Chinese customs inspections and are returned, not meeting GACC import standards.

In the processing stage, Basic Yellow 2 is sometimes used for color enhancement and preservation. This substance is classified as a Group 2B carcinogen. Even after peeling, cross-contamination may occur. Since January 10, 2025, China requires all imported durian to be accompanied by a “Basic Yellow 2 Not Detected” report; otherwise, shipments will be returned or destroyed.

Thai Longan:

During processing, sulfite fumigation is commonly used for preservation and color protection. This leads to sulfur dioxide residues far exceeding legal limits, violating Chinese standards and becoming a major reason for customs rejection, failing to meet GACC requirements.

[FSTest Solution]

To address the key challenges faced by Southeast Asian fruit exporters and comply with GACC import requirements, FSTest offers tailored testing solutions to effectively minimize the risk of shipment rejection and ensure compliance with China’s GB 2763 and GB 2760 standards:

Results in just 5–10 minutes. Suitable for on-site screening in orchards and packing facilities. Quickly detects sulfur dioxide residues to prevent rejection due to excessive additives.

Product: IA32.1201.5 Sulfur Dioxide Test Kit (2 Tests/Kit)

Helps exporters assess soil and product compliance. Provides accurate detection of heavy metal content, eliminating the risk of exceeding limits and ensuring compliance with GACC standards.

Products:

IA32.4670.5 Heavy Metal Cd Test Strip (10 Tests/Kit)

IA32.4671.5 Heavy Metal Pb Test Strip (10 Tests/Kit)

Fully aligned with the latest GB 2763 standards, ensuring no prohibited pesticide residues and preventing shipment rejection at the source.

Broad-Spectrum Rapid Test Card:

PR32.7080.5 Pesticide Test Card-Ultra (20 tests/kit)

Detects organophosphorus and carbamate pesticides with one card—fast, efficient, and cost-effective screening.

Targeted Rapid Test Kits:

Over 100 lateral flow pesticide test kits available for precise detection of specific residues such as carbendazim, thiamethoxam, chlorpyrifos, and difenoconazole—providing a comprehensive solution to pesticide residue compliance.

Product: IA32.1098.5 Basic Yellow 2 Rapid Test Kit

Easy to use, enabling exporters to conduct accurate pre-export screening and reduce laboratory testing costs.

Contact us for customized compliance solutions and ensure smooth clearance under GACC requirements while minimizing the risk of shipment rejection:

www.fstestcorp.com

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