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Thailand's Customs Department and China's General Administration of Customs (GACC) signed a new customs cooperation protocol on August 31. Under its terms, the document will formally take effect within 60 days once China completes its relevant domestic approval process. Once in force, clearance efficiency for goods moving between the two countries is expected to improve further, while the scope of bilateral customs cooperation will expand from existing areas into five new directions. It is the latest step in deepening Thailand-China economic and trade ties since Thai Prime Minister Anutin Charnvirakul's official visit to China in July, during which the two sides signed a package of cooperation documents, and is seen as one of the concrete measures following up on the trade-facilitation goals set out in the joint statement the two countries issued earlier this year.

According to Thailand and China's earlier joint statement and related public information, the priority areas for bilateral customs cooperation include advancing “smart customs” development, establishing a single-window service for cross-border trade, deepening cooperation on mutual recognition of regulatory standards and capacity-building, and stepping up joint efforts against intellectual-property infringement and counterfeit goods, alongside strengthening food safety. The statement also noted that China welcomes Thailand's participation in the Belt and Road Customs Cooperation Mechanism on Food Safety, aiming to jointly raise food-safety governance capacity and continue expanding the volume of agricultural and food trade between the two countries. These priorities align closely with the scope of the newly signed protocol, reflecting how Thailand-China customs cooperation is shifting from an early focus on clearance facilitation toward deeper institutional cooperation encompassing regulatory alignment, risk prevention and supply-chain coordination.

The deepening of customs cooperation is closely tied to the rapid growth of Thailand-China agricultural trade in recent years. Fresh durian, Thailand's most important agricultural export to China, illustrates the trend: in the first half of this year, the value of Thailand's fresh durian exports to China topped 100 billion baht (more than US$3 billion), with export volume exceeding 870,000 tonnes, and the Chinese market has consistently accounted for around 98% of Thailand's total durian exports. To respond to Chinese customs' earlier tightening of inspections for the chemical residue Basic Yellow 2 (BY2), Thailand built an information system linking the entire chain from orchards and packing houses to testing laboratories, paired with the issuance of electronic phytosanitary certificates (e-Phyto) to improve regulatory efficiency and speed up clearance. That experience underpins the “smart customs” and single-window elements of the new Thailand-China protocol.

At a broader level, the strengthened customs cooperation is also a continuation of a series of high-level visits and economic-cooperation mechanisms Thailand and China have built in recent years. During Prime Minister Anutin's visit to China in July, the two sides witnessed the signing of cooperation documents spanning trade, agriculture, customs, science and technology, aviation and aerospace, intellectual property, anti-money laundering and media, and the two countries have also kept up communication on major connectivity projects such as the China-Thailand railway. Analysts note that as the upgraded ASEAN-China Free Trade Area 3.0 agreement — which adds new chapters on the digital economy, green economy, competition and consumer protection, supply-chain connectivity and support for micro, small and medium enterprises — moves forward, deeper bilateral Thailand-China customs cooperation should help Thailand better capture and connect with the resulting regulatory benefits amid the regional restructuring of industrial supply chains, creating a smoother clearance environment for Thai exporters, particularly small and medium-sized firms.

In terms of timeline, the new protocol will take effect within 60 days of China completing its domestic approval process, meaning the related facilitation measures could come into force as early as later this year. For Thai exporters, shorter clearance times mean lower logistics costs and faster market responsiveness — especially critical for time-sensitive trade categories such as fresh agricultural produce and electronic components. For China, deepening customs cooperation with Thailand, a key ASEAN member, also helps reinforce the stability of China-ASEAN trade corridors, providing more resilient institutional safeguards for regional supply chains amid a complex and volatile global trade environment. Market watchers will continue to follow the specific implementation rules once the protocol takes effect, as well as further progress on data-sharing and joint risk assessment between the two countries' customs authorities at the technical level.

The customs cooperation protocol comes against a backdrop of expanding bilateral trade alongside growing structural imbalance. According to Thailand's Ministry of Commerce, China has for years remained Thailand's largest trading partner, with bilateral trade worth roughly US$91.51 billion in the first half of this year alone. In the first quarter of this year, total Thailand-China trade reached 1.278 trillion baht, up 18.78% year-on-year — with Thai exports to China at 299.423 billion baht, up just 0.70%, while imports from China surged to 979.16 billion baht, up 25.68%, widening Thailand's trade deficit with China to 679.737 billion baht, a 41% jump. Some academics have projected that if the trend continues, Thailand's full-year trade deficit with China could exceed 2.2 trillion baht, a new record. Analysts attribute the widening gap partly to Chinese exports being redirected toward ASEAN markets including Thailand amid a shifting external environment, and partly to Thai manufacturers' growing reliance on imported Chinese machinery and raw materials.

Against this backdrop, faster customs clearance is seen as something of a double-edged sword: on one hand, it should speed up exports of Thailand's competitive goods, such as agricultural products, to China and help some industries expand their share of the Chinese market; on the other, the same facilitation applies to goods imported from China, which in theory could also accelerate import growth in the short term. Thailand's Ministry of Commerce and industry groups say they will closely monitor the protocol's actual impact on bilateral trade structure once it takes effect, while pushing ahead with industrial upgrading and export diversification to ease pressure from the trade imbalance with China. Overall, the signing of this customs cooperation protocol is seen as another example of the continued institutional deepening of Thailand-China economic and trade ties, and how it plays out will be an important gauge of whether the two countries' economic cooperation can move toward a more balanced and sustainable footing.

Thailand's business community has largely welcomed the new protocol, saying streamlined clearance procedures will directly cut logistics and compliance costs for small and medium-sized enterprises, particularly smaller producers that rely on cross-border e-commerce and fast logistics to export to China. Industry figures have urged the relevant Thai authorities to quickly publish detailed operating procedures and transition arrangements once the protocol takes effect, so businesses can adjust their declaration processes and documentation in advance, fully capture the facilitation benefits of the new rules, and avoid new clearance bottlenecks arising from any friction in aligning the two systems.