Southeast Asia’s (SEA) economy continues to demonstrate resilience despite persistent global uncertainties, trade tensions and evolving market conditions. Across the region, economic performance has remained mixed, with varying country growth trajectories.
The region experienced divergent economic outcomes during 2025, with some economies recording accelerating growth while others faced slower expansion due to domestic challenges and weaker confidence levels.
As the economies of SEA countries continue adapting to changing global trade patterns and industrial shifts, infrastructure-linked sectors are increasingly influencing economic competitiveness, investment attractiveness and long-term development prospects.
Regional growth remains resilient amid external pressures
In 2025, the region’s economy faced a more challenging global environment. Trade tensions, policy uncertainties and shifting international demand affected growth across markets during the year. Growth moderated across much of the region during the first quarter of 2025. However, economic conditions improved later in the year, with a broad-based rebound emerging during the fourth quarter as stronger global demand supported production and exports. Industrial production, manufacturing activity and investment commitments strengthened, helping several economies regain momentum.
The recovery highlighted the importance of productive infrastructure systems that support industrial activity, manufacturing output, logistics efficiency and export competitiveness. Construction activity, transportation networks and industrial facilities continued to play a significant role in enabling economic expansion across the region.
Investment commitments increased during the fourth quarter, particularly in higher-value sectors. This trend reflected continued investor confidence in SEA’s long-term growth potential despite short-term economic uncertainties.
Indonesia maintains stable growth through domestic demand and investment
Indonesia remained one of SEA’s most stable large economies throughout 2025. Economic growth reached 5.04 per cent in the third quarter before accelerating to 5.39 per cent in the fourth quarter, marking the country’s fastest growth rate since the third quarter of 2022. Annual GDP growth reached 5.11 per cent for the year.
The country’s performance was largely supported by household consumption, government spending and investment recovery. Household consumption continued to account for slightly more than half of economic activity, highlighting the importance of domestic demand in sustaining growth.
From an infrastructure perspective, one of the most notable developments was the contribution of construction and investment-related sectors to overall economic activity. During the fourth quarter, manufacturing, construction, wholesale and retail trade, and agriculture all recorded growth. Transport and storage services also emerged among the strongest performing sectors within the services economy.
The growth of transportation and storage activities reflects the increasing importance of logistics infrastructure and connectivity systems within Indonesia’s broader economic framework. As trade and domestic consumption expand, infrastructure-linked sectors continue supporting the movement of goods, services and investment across the economy.
Investment recovery during the fourth quarter further reinforced growth momentum. According to the review, stronger investment activity contributed significantly to Indonesia’s strongest annual economic performance in three years.
Malaysia’s construction sector continues to deliver strong performance
Malaysia recorded one of the strongest growth accelerations in the region during 2025. GDP growth increased from 4.4 per cent in the second quarter to 5.2 per cent in the third quarter, supported by strong performance across several sectors.
Services and manufacturing, particularly consumer-related industry and electrical and electronics production, were the main drivers of the spike in economic growth in the third quarter. The mining sector also rebounded significantly, expanding by 9.7 per cent after contracting in the previous quarter.
One of the most important infrastructure-related indicators was the continued expansion of the construction sector. Construction maintained robust double-digit growth during the third quarter, making it one of the strongest-performing segments of the Malaysian economy.
The sustained growth of construction activity demonstrates the ongoing importance of infrastructure and development projects in the Malaysian economy. Construction performance often reflects broader investment trends, capital expenditure activity and confidence in future economic prospects.
Private consumption also remained strong, growing by 5.0 per cent during the third quarter. Supported by labour market conditions and policy measures, household spending continued to act as a key contributor to economic expansion.
The combination of manufacturing growth, construction expansion and resilient consumption reinforced Malaysia’s position among SEA’s stronger-performing economies during the year.
Singapore benefits from manufacturing strength and investment flows
Singapore recorded strong economic performance throughout 2025 despite facing external trade pressures.
During the third quarter, GDP expanded by 4.2 per cent, supported by resilient manufacturing activity and stable private consumption. Although growth moderated slightly from the previous quarter, the economy remained supported by a strong labour market and a low inflation environment.
Economic momentum strengthened considerably during the fourth quarter. GDP growth accelerated to 6.9 per cent year on year, the highest quarterly growth rate of the year. Growth was broad-based across sectors, with manufacturing emerging as the strongest contributor. The manufacturing sector expanded by 18.8 per cent, supported by robust demand for AI-related electronics products.
Infrastructure-linked sectors also contributed to Singapore’s performance. Construction rebounded from contraction during the fourth quarter of 2025, supported by increased public and private construction activity.
The recovery of construction activity highlights the continuing importance of infrastructure investment within Singapore’s economic model. While manufacturing remains a major growth driver, public and private construction activity contributes to broader economic stability while supporting long-term development requirements.
Foreign investment inflows into electronics and biomedical manufacturing sectors further strengthened economic performance. These investments underscore the importance of maintaining high quality industrial infrastructure capable of supporting advanced manufacturing activities.
Singapore’s experience demonstrates how industrial capacity, construction activity and investment attraction can collectively support economic resilience even during periods of global uncertainty.
The Philippines faces confidence challenges linked to infrastructure issues
Among the region’s major economies, the Philippines experienced some of the most significant economic challenges during 2025.
GDP growth slowed to 4.0 per cent during the third quarter and weakened further to 3.0 per cent in the fourth quarter, representing the slowest pace since the pandemic recovery period. Growth reached 4.4 per cent for the entire year, below the government’s target range of 5.5 to 6.5 per cent.
A key factor identified was the impact of controversies involving public infrastructure projects. Corruption issues and graft investigations connected to infrastructure projects weakened consumer and investor confidence, contributing to slower economic activity.
The consequences extended across several sectors. Investments declined sharply during the third quarter, while consumer confidence weakened and household consumption recorded its slowest growth since 2021. Industrial activity also lost momentum, with manufacturing growth slowing and the industrial sector eventually contracting by 0.9 per cent during the fourth quarter.
The Philippine experience highlights the broader relationship between infrastructure governance and economic performance. Investor confidence is influenced not only by infrastructure spending itself but also by transparency, project execution and institutional credibility.
Despite these challenges, exports remained a bright spot. Export growth accelerated to 13.2 per cent during the fourth quarter, supported by strong performance in electronics, machinery, transport equipment and semiconductor-related products.
The divergence between export performance and domestic weakness illustrates the importance of restoring confidence and investment momentum to support future growth.
Manufacturing infrastructure supports regional competitiveness
A recurring theme throughout SEA’s economic performance during 2025 was the importance of manufacturing-linked infrastructure.
Across economies, stronger manufacturing activity contributed significantly to growth. Singapore benefited from surging electronics demand, while Malaysia recorded strong performance in electrical and electronics production. The Philippines also saw export gains supported by semiconductors and machinery exports. Indonesia’s manufacturing sector remained one of the major contributors to economic activity.
These developments underscore the importance of industrial infrastructure in supporting regional competitiveness. Manufacturing output depends on efficient transportation systems, logistics facilities, industrial estates, energy availability and supporting construction activity.
The role of electrical and electronics industries act as major contributors to growth across SEA. As global demand for technology products and AI-related electronics increased, countries with strong manufacturing ecosystems were better positioned to benefit.
Industrial infrastructure, therefore, remains a critical foundation for sustaining export growth and attracting future investment.
Construction activity reflects economic confidence
Construction emerged as an important indicator of economic activity across several SEA economies.
Malaysia’s construction sector maintained double-digit growth during the third quarter, reflecting ongoing development activity and investment momentum. Singapore’s construction sector rebounded during the fourth quarter as both public and private projects contributed to expansion. Indonesia also recorded growth in construction activity as part of its broader economic acceleration.
The performance of the construction sector across the region reflects more than short-term economic activity. Construction often serves as a leading indicator of future growth because it is closely linked to investment decisions, infrastructure development, industrial expansion and urban development.
Strong construction performance also generates multiplier effects throughout the economy by supporting employment, materials demand, transportation activity and associated service sectors.
As governments and private investors continue allocating capital towards long-term development, construction activity is expected to remain an important contributor to economic resilience.
Investment recovery strengthens regional growth prospects
Investment trends became increasingly important during the latter part of 2025. Investment commitments surged during the fourth quarter, particularly in high-value sectors. This reflected growing confidence in the region’s long-term economic fundamentals despite external uncertainties.
Indonesia experienced a recovery in investments that contributed to its strongest annual growth performance in three years. Singapore recorded strong foreign investment inflows into manufacturing, while Malaysia benefited from continued industrial expansion.
Investment activity is closely linked to infrastructure readiness. Investors typically evaluate transportation systems, logistics efficiency, industrial facilities, construction capacity and overall connectivity when making location decisions. The strengthening of investment flows, therefore, underlines the importance of maintaining efficient infrastructure systems capable of supporting industrial and commercial expansion.
Infrastructure-linked sectors remain central to economic growth
The economic performance of SEA during 2025 demonstrated both resilience and divergence. While some economies achieved accelerating growth and investment recovery, others faced challenges linked to confidence, governance concerns and softer domestic demand.
Indonesia finished the year with its strongest growth in three years. Malaysia benefited from robust construction and manufacturing activity. Singapore achieved significant growth acceleration supported by manufacturing and construction rebounds. The Philippines illustrated how infrastructure-related governance challenges can affect confidence and economic performance.
As SEA continues adapting to changing global economic conditions, infrastructure-linked sectors are expected to remain critical components of growth. The region’s experience during 2025 demonstrates that economic resilience is increasingly supported by strong industrial capacity, construction activity, investment momentum and efficient systems that enable production, trade and connectivity.
These factors will continue shaping the region’s economic trajectory as governments and businesses seek to strengthen competitiveness, attract investment and sustain long-term growth in an increasingly complex global environment. n
This is an extract from a report titled “Southeast Asia Quarterly Economic Review: A Strong Year-end Rebound” published by McKinsey & Company on March 27, 2026.
