- Disruption to maritime trade through the Strait of Hormuz is intensifying pressure on Asia-Pacific supply chains in the midst of reconfiguration
- ASEAN nations have been the primary beneficiaries of China Plus One diversification strategies, and the current disruption is accelerating that structural shift
- Companies are responding with route diversification, inventory restructuring and hybrid logistics solutions
- Governments across the region are expanding strategic reserves and advancing intra-regional integration frameworks
The reconfiguration of Asia-Pacific supply chains was well under way before the current disruption to maritime traffic through the Strait of Hormuz. Global foreign direct investment (FDI) inflows to ASEAN countries reached a record $226bn in 2024, an 8% annual increase, even as global FDI fell by an estimated 11% and ASEAN overtook China as the preferred destination for manufacturing FDI originating from OECD countries. South-east Asian economies were already absorbing manufacturing activity relocating from China as companies sought to manage earlier tariffs on Chinese goods and diversify their supply chains in the wake of the Covid-19 pandemic. ASEAN exports expanded by about 7% in 2024, outperforming global merchandise trade growth of roughly 2-3% over the same period. The Strait of Hormuz disruption has added a new dimension to this process, compressing timelines and sharpening the strategic logic behind decisions that many firms were already making.
Exposure to Hormuz-dependent supply chains
Energy dependency on the Hormuz corridor is well documented but the implications for manufacturing supply chains in South-east Asia extend considerably further than fuel supply and rising costs alone. The Gulf also supplies key industrial inputs such as sulphur, urea, polyethylene, helium and aluminium, on which a broad cross-section of Asian manufacturers depends. There has been port disruption throughout March 2026 at major regional hubs including Singapore, Colombo and Mundra as container vessels seek alternative routes, creating downstream pressure on distribution networks across the region.
Company-level responses
The corporate response has combined immediate operational adjustments with longer-term strategic planning. Major carriers have moved quickly to suspend bookings through affected corridors and issue emergency surcharge notices, while manufacturers with significant Gulf-sourced input exposure are pursuing a parallel set of measures. Interest in alternative freight corridors has risen sharply, with the Central Asian route connecting through Turkmenistan and Azerbaijan, then to Turkey and onward to Europe, attracting particular attention as a viable bypass. Sea-air hybrid solutions are also gaining traction among shippers of time-sensitive goods, who are accepting higher per-unit costs in exchange for delivery reliability.
On inventory strategy, companies are being encouraged to build up buffer stocks for their most critical product lines, lock in forward transport capacity, review contractual protections against cost escalation and identify alternative or regionally proximate suppliers who could step in if current sourcing arrangements are disrupted. For many, this amounts to a fundamental reassessment of lean inventory models whose limitations have now been exposed twice in a little over five years.
The financial logic underpinning structural change is also hardening. Many companies can expect meaningful revenue loss when supply chains are disrupted, with average cost to serve rising sharply. Firms with stronger, more resilient supply chains tend to outperform less resilient competitors on profitability during and after disruptions, sometimes seeing noticeably higher revenue growth and profit retention over time compared with peers that are less prepared. The semiconductor shortage of 2021, which began as a short-term problem but ultimately extended over two years, has become a reference point for logistics planners who are reluctant to assume that the current disruption will be brief or contained.
Government responses
At the policy level, governments across ASEAN are advancing measures that had been under discussion well before the current disruption. Fuel-sharing arrangements and coordinated emergency logistics protocols are gaining renewed priority, and member states increasingly recognise that collective responses offer more effective protection than individual national measures for countries with similar import dependency profiles.
The disruption has also given new impetus to the longer-standing ambition of deeper intra-regional economic integration. Trade between ASEAN member states has remained at roughly 20% of the bloc’s total trade since the early 2000s, about half the proportion seen in more deeply integrated trading blocs, despite intra-bloc tariffs being reduced to near zero. However, efforts to reduce non-tariff barriers, liberalise services trade and advance digital economy frameworks are continuing, providing the structural foundation for the development of more regionally self-sufficient supply chains.
A structural shift already in motion
ASEAN has occupied an increasingly central role in preventing global supply chains from fragmenting entirely as the geography of manufacturing shifts. The China Plus One strategies that initially directed post-pandemic investment into Vietnam, Thailand, Indonesia and Malaysia are now being superseded by a broader regionalisation strategy, in which energy security, logistics resilience and proximity to end markets carry growing weight alongside traditional cost considerations. Semiconductor investment has concentrated in the Singapore-Malaysia-Indonesia corridor, while major electronics manufacturers have transferred significant production capacity into Vietnam and Thailand, deepening an industrial base that is now being tested, which is demonstrating meaningful capacity to absorb the pressure.
While the disruption in the Strait of Hormuz has not created this transformation, it has structurally strengthened the strategic rationale behind it and may accelerate a process of supply chain regionalisation across South-east Asia in the medium to long term.
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