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Vietnam and Thailand Are Deepening Ties to Build a More Resilient ASEAN

  • May 29
  • 6 min read
Thai Prime Minister Paetongtarn Shinawatra

As global supply chains become more fragmented and geopolitical competition intensifies, Vietnam and Thailand are strengthening economic cooperation in ways that could shape ASEAN's long‑term resilience. Relations between Vietnam and Thailand are increasingly evolving beyond traditional trade. What was once primarily a bilateral commercial relationship is gradually becoming a broader strategic partnership centered around supply chain integration, green energy cooperation, digital transformation, and regional economic resilience (Vietnam, Thailand Discuss Ways for Promoting Bilateral Trade, 2024).


In May 2025, Vietnam and Thailand elevated their bilateral relationship to a Comprehensive Strategic Partnership, underscoring the growing importance of economic, trade, and investment cooperation as a key pillar of their ties. For ASEAN, this matters. As Southeast Asia faces growing external pressures ranging from supply chain disruptions to intensifying competition between major powers, deeper cooperation between two of mainland Southeast Asia's largest economies could strengthen the region's ability to maintain economic stability and strategic flexibility (Joint Statement on the Elevation to a Comprehensive Strategic Partnership Between Vietnam and Thailand, 2025).


Increasingly, Vietnam and Thailand appear to view bilateral cooperation not simply through a national lens, but as part of a larger effort to reinforce ASEAN's collective economic position (Vietnam, Thailand to Draft Action Plan for Implementing New Partnership, 2025).


Key Facts


Background

Economic ties between Vietnam and Thailand have expanded significantly over the past two decades as ASEAN integration accelerated. In 2021, bilateral trade stood at US$18.8 billion, up 17.9% year‑on‑year despite the COVID‑19 pandemic. Thailand was among the earlier ASEAN economies to invest heavily in Vietnam during the country's industrial expansion period and ranks ninth among foreign investors in Vietnam. Over time, trade relations evolved from basic commodity exchange toward deeper manufacturing and investment cooperation (Vietnam, Thailand Discuss Ways for Promoting Bilateral Trade, 2024).


Today, both economies are increasingly connected through regional value chains. Vietnam's rapid emergence as a manufacturing center — particularly in electronics, industrial components, and export‑oriented production — has created new opportunities for integration with Thai industrial networks and logistics systems. At the same time, Thailand's more advanced infrastructure, automotive sector, and regional business networks continue making it an important economic partner for Vietnam's broader industrial ambitions (Vietnam, Thailand to Draft Action Plan for Implementing New Partnership, 2025).


This shift reflects a larger ASEAN trend. Rather than operating purely as separate national economies competing for foreign investment, Southeast Asian states are increasingly attempting to strengthen intra‑ASEAN production ecosystems capable of reducing external vulnerabilities (Vietnam, Thailand to Draft Action Plan for Implementing New Partnership, 2025).


The ASEAN View

From a Southeast Asian perspective, stronger Vietnam–Thailand ties are important because they reinforce ASEAN's long‑term economic resilience. The COVID‑19 pandemic, geopolitical tensions, and disruptions in global shipping networks exposed the risks of excessive dependence on concentrated external supply chains. In response, ASEAN economies have increasingly focused on diversification, regional connectivity, and supply chain redundancy (Vietnam, Thailand to Draft Action Plan for Implementing New Partnership, 2025).


Vietnam and Thailand are now becoming central to that effort. Vietnam's manufacturing growth has positioned the country as one of Southeast Asia's key export and production centers, while Thailand remains one of the region's most important industrial and logistics hubs. Together, deeper cooperation between the two countries could strengthen ASEAN's broader role within global supply chains (Joint Statement on the Elevation to a Comprehensive Strategic Partnership Between Vietnam and Thailand, 2025).


This cooperation is increasingly visible in:

  • electronics manufacturing,

  • automotive supply chains,

  • renewable energy investment,

  • logistics integration, and

  • digital infrastructure development.


For ASEAN policymakers, stronger bilateral integration between major member states also helps reinforce regional economic cohesion at a time of increasing global uncertainty (Vietnam, Thailand to Draft Action Plan for Implementing New Partnership, 2025).


Analysis

One of the most important developments in Vietnam–Thailand relations is the gradual shift from transactional trade toward integrated economic cooperation. This is especially visible in manufacturing. Vietnam's industrial expansion has created growing demand for regional supply chain coordination, particularly as multinational companies diversify production away from overconcentrated manufacturing bases elsewhere in Asia (Vietnam, Thailand Discuss Ways for Promoting Bilateral Trade, 2024).


Thai firms are increasingly participating in these production ecosystems through investment, logistics, industrial services, and component manufacturing partnerships. In practical terms, this means ASEAN supply chains are becoming more interconnected internally rather than relying solely on external markets. That evolution could become strategically significant over the next decade. A more integrated ASEAN manufacturing ecosystem would likely improve (Vietnam, Thailand Discuss Ways for Promoting Bilateral Trade, 2024):

  • supply chain resilience,

  • regional bargaining power,

  • industrial specialization, and

  • investment attractiveness.


Green energy cooperation is also emerging as a major pillar of Vietnam–Thailand engagement. Both governments are under increasing pressure to balance industrial growth with sustainability goals as global investors place greater emphasis on environmental standards and clean energy transition strategies. Vietnam has rapidly expanded renewable energy capacity in recent years, particularly in solar development, while Thailand continues to position itself as a regional leader in green industrial policy and energy diversification. Collaboration in these areas may help ASEAN remain competitive as global supply chains increasingly prioritize sustainability compliance (Joint Statement on the Elevation to a Comprehensive Strategic Partnership Between Vietnam and Thailand, 2025).


Digital transformation is another growing area of overlap. Both countries are investing heavily in digital infrastructure, high‑tech manufacturing, workforce development, and innovation ecosystems, including cooperation in the digital economy and green economy. This reflects a broader regional reality: ASEAN's future competitiveness will increasingly depend not only on low‑cost manufacturing but also on technological upgrading and digital integration (Vietnam, Thailand to Draft Action Plan for Implementing New Partnership, 2025).


However, challenges remain. Infrastructure gaps, regulatory differences, financing requirements, and geopolitical uncertainty continue to complicate deeper integration efforts. Vietnam faces challenges including bureaucratic delays, infrastructure constraints, and regulatory complexity, which can affect investment and project timelines. Both countries must also navigate a more competitive strategic environment as major powers intensify engagement across Southeast Asia. Maintaining ASEAN neutrality while expanding economic partnerships will remain a delicate balancing act (Vietnam Transport Infrastructure: State, Challenges & Future, 2026).


Still, the broader trajectory is increasingly clear. Vietnam and Thailand are moving toward a more strategic form of bilateral cooperation centered on resilience rather than simply growth (Vietnam, Thailand to Draft Action Plan for Implementing New Partnership, 2025).


What Should Happen Next

Vietnam and Thailand will likely continue expanding cooperation across sectors considered strategically important to ASEAN's long‑term development. Both sides agreed to expedite development of a substantive action plan for implementing the Comprehensive Strategic Partnership for the 2026–30 period, including a joint working group to outline concrete implementation plans for the "Three Connects" strategy (Joint Statement on the Elevation to a Comprehensive Strategic Partnership Between Vietnam and Thailand, 2025).


  • renewable energy integration and energy transition,

  • electronics and semiconductor supply chains,

  • digital economy collaboration,

  • logistics connectivity and transport links, and

  • industrial innovation partnerships in science, technology, and innovation.


Cross‑border infrastructure projects and regional transportation networks may also become increasingly important as ASEAN seeks to strengthen intra‑regional trade and supply chain efficiency. Both sides have agreed to strengthen links in transport connectivity and implement and upgrade the ASEAN Trade in Goods Agreement (ATIGA) and ASEAN Plus free trade agreements to facilitate trade and consolidate intra‑ASEAN trade and regional supply chains (Vietnam, Thailand Discuss Ways for Promoting Bilateral Trade, 2024)


For ASEAN as a whole, the deeper significance of Vietnam–Thailand relations lies in the model they may create for broader regional cooperation. As global economic fragmentation accelerates, ASEAN's long‑term resilience will likely depend on how effectively member states can build stronger internal economic linkages while maintaining openness to global markets (Vietnam, Thailand to Draft Action Plan for Implementing New Partnership, 2025)


Vietnam and Thailand appear increasingly aware of this reality. Their growing partnership reflects a wider regional shift toward a more interconnected, strategically coordinated, and resilient ASEAN economy (Joint Statement on the Elevation to a Comprehensive Strategic Partnership Between Vietnam and Thailand, 2025).


FAQ

Why are Vietnam and Thailand strengthening economic ties?

Both countries are seeking to improve supply chain resilience, strengthen regional manufacturing networks, and expand cooperation in emerging sectors such as renewable energy, digital economy, and green economy.


Which sectors are driving Vietnam–Thailand cooperation?

Manufacturing, electronics, logistics, renewable energy, digital infrastructure, energy transition, and industrial development are among the key growth areas.


Why does this matter for ASEAN?

Stronger Vietnam–Thailand cooperation could help reinforce ASEAN's economic resilience, improve regional supply chains through ATIGA and ASEAN Plus FTAs, and strengthen Southeast Asia's position within the global economy.


What challenges could affect deeper cooperation?

Infrastructure gaps, regulatory differences, bureaucratic delays, financing requirements, and geopolitical tensions remain important long‑term challenges.

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