According to the latest data released by Thailand's Ministry of Commerce and the Customs Department, bilateral trade between Thailand and China reached US$108.804 billion in the first seven months of 2026 (January-July), up a sharp 29.89% year-on-year — a growth rate far exceeding Thailand's overall trade performance. The figure extends China's standing as Thailand's largest trading partner for a 13th consecutive year, a milestone confirmed by Chinese Vice Minister of Commerce Yan Dong at a trade promotion event in Bangkok in July, who also noted that Thailand remains an important trading partner for China among ASEAN nations. Public data show full-year bilateral trade in 2025 totaled roughly US$147.33 billion; extrapolating from the current pace, 2026's full-year trade volume could set a fresh record, even as the structural imbalance in that trade becomes more pronounced.

A breakdown of the figures shows Thai exports to China totaled US$26.837 billion over the same seven months, up a comparatively modest 9.17%, while imports from China surged 38.49%, far outpacing export growth. As a result, Thailand's trade deficit with China widened 59.31% year-on-year to US$55.13 billion — up from a deficit of US$46.22 billion recorded in the first half of the year (January-June), which had itself widened by US$17.63 billion year-on-year, suggesting the deterioration showed little sign of easing into July. Notably, the pace at which Thailand's deficit with China alone is widening even outstrips the growth of Thailand's overall trade deficit with the rest of the world, which stood at roughly US$35.3545 billion over the same seven months — implying Thailand still runs surpluses with other major partners such as the United States that partly offset the imbalance with China, even as it underscores Thailand's heavy reliance on a single market and a long-standing structural imbalance in its trade.

The import surge was driven mainly by capital goods and production materials, chief among them electrical machinery and components, whose imports jumped roughly 83% year-on-year to US$19.37 billion — the fastest-growing import category. Imports of mechanical machinery, chemicals, computers and parts, integrated circuits and steel also rose broadly. Analysts note this largely reflects investment-driven demand rather than consumer imports: large volumes of Chinese capital equipment and components are being used to build and supply electric vehicle (EV), electronics, artificial intelligence and data-centre projects inside Thailand.

Chinese direct investment in Thailand has continued to expand in recent years, concentrated particularly in the Eastern Economic Corridor (EEC). Chinese automakers including BYD, Great Wall Motor and Changan have established EV manufacturing plants in the country. Industry data show China now accounts for roughly 42% of the total value of approved foreign investment in Thailand, having overtaken Japan as the dominant force shaping the country's industrial landscape. Some analysts caution, however, that much of the new EV capacity relies heavily on automation and robotics, limiting its contribution to local employment and local-component sourcing — a concern now drawing attention from Thai policymakers and industry groups. Japanese firms, which long dominated investment in Thailand's automotive and electronics sectors, have seen their investment growth in new-energy and digital-infrastructure fields clearly lag behind their Chinese counterparts — a shift widely seen as a signal that the centre of gravity in Thailand's supply chains is moving from the traditional Japanese-led system toward a China-led emerging industrial chain.

On the export side, agricultural products remain the backbone of Thailand's sales to China, with durian standing out in particular. According to Thailand's Ministry of Agriculture and Cooperatives, fresh durian exports to China reached 872,237.24 tonnes worth more than US$3.1 billion in the first half of 2026, shipped in 53,665 containers — a record for the period, attributed to supply-chain quality measures including the "Four Nos" policy, four-layer screening, traceability systems and electronic phytosanitary certificates (e-Phyto). Rubber exports, by contrast, face pressure from soft global demand, with Thailand's Office of Agricultural Economics warning that natural rubber prices could remain under strain this year. Separately, Thailand's trade with its free trade agreement (FTA) partners rose 21.8% year-on-year in the first half of 2026, with China ranking first among them — underscoring the role played by arrangements such as the Regional Comprehensive Economic Partnership (RCEP) in supporting Thailand-China commerce.

Facing a persistently widening deficit with China — with one forecast putting the full-year 2026 shortfall on track to exceed THB2.2 trillion, a potential record, and the cumulative deficit from 2016 through 2026 projected to reach as much as THB12.14 trillion — Thailand's Deputy Prime Minister and Commerce Minister Suphajee Suthumpun has proposed a "co-creation" approach to Beijing built around three core measures: requiring Chinese-invested firms operating in Thailand to source more local materials, opening Chinese e-commerce channels to Thai small and medium enterprises, and encouraging Chinese investment in Thai agricultural processing. Thai officials say the aim is to ensure Chinese investment generates more real value for the local economy, rather than relying mainly on imported Chinese materials and components for assembly. China has reportedly accepted the proposals in principle while requesting a transition period for companies to adjust, and the two sides have agreed to form a joint working group to speed up discussions.

This year marks the 51st anniversary of diplomatic relations between China and Thailand. In remarks marking the occasion, China's ambassador to Thailand emphasized that China is not only Thailand's largest trading partner but also its largest export market for agricultural products, a major source of investment, and one of its largest sources of tourists, with bilateral trade having grown more than 6,000-fold since the early years of diplomatic ties. Analysts say that while the trade imbalance is unlikely to be resolved quickly, the deepening integration of the two economies — extending from traditional agricultural trade into electric vehicles, electronics manufacturing and digital infrastructure — continues to reshape Thailand's industrial structure and regional supply chains, a trend that will keep shaping the priorities of Thai policymakers in the period ahead.

For China, Thailand serves as an important base for Chinese firms expanding into the ASEAN market and building out regional supply chains, and is a key partner country for China-Thailand economic cooperation under the Belt and Road framework. For Thailand, how to attract Chinese capital and technology while raising the value added by local industry, narrowing the trade deficit and avoiding excessive reliance on a single market will be a policy challenge the Thai government will need to keep weighing in the period ahead. As the two sides' joint working group begins its talks, whether Thailand-China trade can sustain rapid growth while gradually achieving a more balanced structure will be a key indicator to watch for the next phase of the bilateral economic relationship.