Asia, explained.
Employees operate semiconductor die attach machines at a factory in Ayutthaya Province, Thailand, 13 August 2025 (Dario Pignatelli/Bloomberg via Getty Images)
The region’s industrial sector must adapt in a new climate of supply-chain weaponisation.
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Southeast Asian manufacturing: No longer immune from geopoliticsSoutheast Asian manufacturing: No longer immune from geopolitics
Southeast Asia’s factories long thrived under a simple premise: produce bearings, turbine assemblies and precision gearboxes cheaply, ship them globally, and generate export-led growth. Malaysia, Vietnam, Thailand and Indonesia built entire industrial towns on that foundation. The logic seemed sound until 2025.
Today, policy shifts show that industrial engineering has pivoted towards strategic infrastructure. The Organisation for Economic Co-operation and Development (OECD) in September 2025 emphasised that supply chains must now be treated as parts of economic-security architecture. Meanwhile, the International Monetary Fund (IMF) warned that Southeast Asian economies face constrained growth because rising trade barriers and supply-chain disruption are eroding their manufacturing base.
Routes and nodes that were once quiet cost centres are now vulnerability hotspots.
This shift carries three profound consequences for ASEAN’s engineering-heavy subsectors. First, ASEAN is caught in the crossfire of tariff weaponisation by major trade powers. The United States has introduced trans-shipment tariffs targeting machinery, electrical equipment and goods routed through Southeast Asia, applying up to 40% levies on goods deemed to be facilitating Chinese exports. This directly hits components such as bearings and industrial gear sets flowing from Thailand, Malaysia and Vietnam, because their upstream supply still depends on Chinese tooling or blocks. The knock-on effect: producers in ASEAN face compliance burdens, elevated input costs and sourcing uncertainty.
Second, the region is repositioning within global value chains under intense strategic realignment. The ASEAN Investment Report 2025 revealed foreign direct investment in supply-chain intensive manufacturing industries in Southeast Asia surged nearly 150% to US$44 billion, driven by the digital economy push and diversification away from China. But at the same time, these flows carry geopolitical risk: routes and nodes that were once quiet cost centres are now vulnerability hotspots. A factory in Penang assembling turbine casings may rely on a Chinese-sourced high-precision machine wrapped in export controls, shipped through a port subject to drought or cyber-attack, and ultimately destined for the US market facing tariff escalation.
Third, ASEAN lacks the collective political-industrial muscle to shield its industrial base. Regional bodies are trying to respond. The ASEAN Supply Chain Coordination Advisory Council, launched in September 2025, seeks to monitor logistics corridors and industrial nodes across the bloc. But diversity in economic capability means some member states absorb shocks worse than others. The outcome: ASEAN is exposed not just to external shocks but internal fragmentation.
Southeast Asia’s factories have long thrived under a simple premise: manufacture products such as turbine blades cheaply and ship them globally (Alex Eckermann/Unsplash)
Policymakers now face a clear set of priorities. First, define key industrial engineering inputs such as turbine blades, precision bearings and drivetrain gear sets as strategic infrastructure and embed them in national-industrial defence frameworks. Thailand and Malaysia should identify critical components they produce or rely on, classify them as high risk, and invest in regional duplication or buffer inventories. Both countries anchor some of the region’s most advanced industrial clusters, from Malaysia’s semiconductor-linked precision machining corridors to Thailand’s turbine and automotive component hubs. Any disruption in these sectors carries cross-border consequences because their output feeds power plants, transport networks and heavy-industry supply lines across ASEAN. Creating redundancy inside the region would reduce exposure to external shocks and stabilise downstream production for multiple member states.
Southeast Asia’s industrial engineering base is no longer disconnected from geopolitics.
Second, each ASEAN country must conduct a supply-chain vulnerability audit – map inputs, logistics nodes, supplier countries, transit chokepoints and tariff exposure. For instance, Vietnam or Indonesia should assess how many essential gear blanks rely on Chinese exports and whether parts transit via a port vulnerable to disruption. Both countries occupy critical positions in regional manufacturing networks. Vietnam has become one of the fastest-growing hubs for precision machining, electronics assembly and mid-tier industrial components feeding into turbines, heavy machinery and energy systems across Asia, which means even small shocks in upstream sourcing can ripple through multiple industries. Indonesia holds large-scale machinery, metals and automotive manufacturing clusters that depend heavily on imported tooling, specialty steel and semi-finished components routed through congested and geographically exposed maritime corridors such as Tanjung Priok and Belawan. These structural dependencies make both economies sensitive to tariff escalation, export controls and logistical disruption.
Third, ASEAN more broadly must strengthen harmonisation of trade and industrial policy. The tariff map announced in October 2025 showed ASEAN nations settling into a 19–20% reciprocal tariff corridor with the United States, making predictability a competitive advantage. But predictability must extend to regional sourcing: shared standards for industrial components, mutual recognition of certifications, and pooled stocks of strategic parts. This will reduce cascading risk when one national node fails.
In practical terms, imagine a Malaysia-Vietnam-Thailand circuit for high-precision bearings. If Malaysia’s supplier faces a disruption, Vietnam’s plant can immediately ramp up production under regional policy guarantees. Logistics corridors and port access are pre-aligned. The region moves from isolated manufacturers to a networked industrial shield.
Southeast Asia’s industrial engineering base is no longer disconnected from geopolitics. Bearings, turbines and precision gear systems are part of the architecture of strategic power. ASEAN must accept that manufacturing, logistics and trade policy are now one and the same battleground. Failure to integrate strategy with industrial policy will leave the region shaped by global powers rather than shaping its own destiny.
About the author
Apoorba Banerjee
Apoorba Banerjee is a Malaysia-based country operations strategist leading industrial bearings initiatives across ASEAN, with a focus on supply chain resilience and energy infrastructure.
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