To Lam’s Official Visit to Thailand: Key Achievements and Strategic Significance General Secretary and President To Lam paid an official...

To Lam’s Official Visit to Thailand: Key Achievements and Strategic Significance

General Secretary and President To Lam paid an official visit to Thailand from May 27-29, 2026, marking a new milestone in the Comprehensive Strategic Partnership on the occasion of the 50th anniversary of diplomatic relations.

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General Secretary and President To Lam’s official visit to Thailand from May 27-29, 2026 produced substantial results. The two sides adopted the Action Plan for the Vietnam-Thailand Comprehensive Strategic Partnership 2026-2031, signed four key cooperation documents in science & technology, aviation and education, and set a bilateral trade target of US$25 billion.

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Against the backdrop of a rapidly shifting geopolitical landscape in Southeast Asia, marked by intensifying great-power competition and the growing need to preserve ASEAN centrality, the official visit of General Secretary and President To Lam to Thailand from May 27 to 29, 2026 carries significant strategic weight. This was his first visit to an ASEAN member state since assuming the dual roles of Party General Secretary and State President. The trip coincided with the 50th anniversary of diplomatic relations between Vietnam and Thailand (1976-2026) and sent a clear signal of Vietnam’s priority toward neighboring countries and traditional partners.

Thailand is not only Vietnam’s second-largest trading partner within ASEAN but also a vital gateway connecting Vietnam to the region’s more advanced economies. As Vietnam accelerates industrialization, digital transformation and deeper global integration, strengthening ties with Thailand helps expand cooperation in supply chains, high technology, green energy and non-traditional security. As Le Sy Hung, I view this visit as more than diplomatic symbolism — it represents a concrete step in implementing Vietnam’s “bamboo diplomacy” of diversification and multilateralization, building strategic trust through tangible outcomes.

Background and Strategic Significance of the Visit

Vietnam-Thailand relations have grown robustly in recent decades, especially after the two sides elevated ties to a Comprehensive Strategic Partnership. However, turning this framework into reality requires concrete action plans with clear timelines and measurable targets. President To Lam’s visit took place at a moment when both countries had completed leadership transitions and were preparing to enter a new phase of cooperation. Thailand, currently led by Prime Minister Anutin Charnvirakul, welcomed the Vietnamese leader as the first ASEAN destination in his new capacity — a choice that underscores Vietnam’s high regard for Thailand’s geostrategic position in the Mekong sub-region and ASEAN.

For Vietnam, the visit reaffirmed its independent, self-reliant and diversified foreign policy while reinforcing ASEAN’s central role amid ongoing South China Sea tensions and U.S.-China strategic rivalry. For Thailand, hosting Vietnam’s top leader for the first time in years provided an opportunity to advance its “3 Connect” strategy — linking future-industry supply chains, local economies and green energy cooperation.

Key Activities and High-Level Engagements

The three-day official visit (27-29 May 2026) began with arrival at Udon Thani International Airport in northeastern Thailand, followed by travel to Bangkok. Highlights included a formal welcome ceremony at the Thai Government House hosted by Prime Minister Anutin Charnvirakul, bilateral talks on the morning of 28 May, an audience with the King and Queen of Thailand, a meeting with the President of the Thai Parliament, participation in the Vietnam-Thailand Business Forum, and separate meetings with senior executives of major Thai conglomerates such as TCC Group and ThaiBev.

Notably, the Vietnamese leader also visited sites associated with President Ho Chi Minh in Thailand, underscoring the deep historical and emotional bonds between the two peoples. The diverse program demonstrated that the visit extended beyond government-to-government engagement to include economic and people-to-people channels, laying a solid foundation for long-term cooperation.

Key Agreements and Cooperation Documents Signed

The most significant outcome was the adoption and exchange of four major cooperation instruments:

• Action Plan for the Implementation of the Vietnam-Thailand Comprehensive Strategic Partnership for 2026–2031: The centerpiece document that translates the strategic partnership into concrete programs across politics, security, economy, and socio-cultural fields, with clear benchmarks and periodic review mechanisms.
• Cooperation in Science, Technology and Innovation: Focused on artificial intelligence, semiconductors, biotechnology, space technology and satellite applications — areas where the two countries possess strong complementary strengths.
• Feasibility Study for an Aircraft Maintenance, Repair and Overhaul (MRO) Center at U-tapao Airport: An agreement between Thailand’s Eastern Economic Corridor (EEC) Office and VietJet Group, representing a strategic move for Vietnam to participate more deeply in the regional aviation value chain.
• Academic Cooperation between Vietnam’s National Academy of Public Administration and Khon Kaen University: Aimed at enhancing training and policy research exchanges.

In addition, the two sides agreed to accelerate negotiations on an Extradition Treaty and a Mutual Legal Assistance Agreement in criminal matters, while reaffirming their commitment not to allow any individual or organization to use their territory for activities against the other country.

Achievements in Economy, Trade and Investment

On the economic front, both countries set an ambitious target of raising bilateral trade to US$25 billion in the coming period (current volume stands at approximately US$22.1 billion in 2025). Priority areas include supply-chain connectivity, the digital economy, green economy, renewable energy and digital transformation. The Vietnam-Thailand Business Forum created direct opportunities for enterprises from both sides to explore concrete projects in aviation, logistics and technology.

VietJet’s involvement in the U-tapao MRO feasibility study not only opens commercial prospects but also helps elevate Vietnam’s aviation technology capabilities while leveraging Thailand’s strategic location in Southeast Asia.

Security-Defense Cooperation and Other Areas

In security and defense, the two sides agreed to intensify cooperation against transnational crime, cybercrime, drug trafficking, illegal fishing and maritime security threats. These are shared challenges that require close coordination between two countries sharing both land and maritime borders. The proposal to conclude an extradition treaty and mutual legal assistance agreement signals a strong determination to bring legal cooperation into practice.

The leaders also pledged closer coordination at regional forums such as ASEAN, APEC and Mekong sub-regional mechanisms, while supporting the peaceful resolution of disputes in accordance with international law, including the 1982 UNCLOS.

Assessment and Prospects for Vietnam-Thailand Relations

President To Lam’s visit to Thailand concluded successfully, delivering tangible results in both political depth and the breadth of economic-security cooperation. The adoption of the 2026-2031 Action Plan represents a turning point — transforming the Comprehensive Strategic Partnership from a political declaration into actionable programs with clear responsibilities assigned to ministries and agencies.

Nevertheless, realizing these commitments will require sustained monitoring mechanisms and an enabling environment for businesses. Vietnam should proactively propose specific cooperation projects in high technology and sustainable supply chains, while Thailand can further facilitate the flow of Vietnamese goods and labor to help balance trade.

Overall, the visit has reaffirmed strategic trust between the two nations and opened a more dynamic new chapter of cooperation on the occasion of the 50th anniversary of diplomatic relations. This is a positive signal not only for bilateral ties but also for the stability and prosperity of ASEAN as a whole.

General Secretary and President of Vietnam To Lam and his wife Ngo Phuong Ly met with King Maha Vajiralongkorn and Queen of Thailand at the Royal Palace.

Disclaimer: This article is a political analysis based on publicly available sources. All assessments are for reference purposes only and do not represent official positions of any government agency. The author bears no responsibility for policy decisions made based on this content.

Readers interested in Vietnam-Thailand relations and Vietnam’s foreign policy are welcome to share their views in the comments section. Let us discuss together to gain deeper insight into the opportunities and challenges in this new phase.

Le Sy Hung