Straits Mega-Hubs Shed 5% of Connectivity as Lines Reroute Relay Cargo to India and Middle East

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Singapore, Port Klang, and Tanjung Pelepas all posted synchronized quarterly declines in the second quarter of 2026, signaling that shipping lines have moved beyond pandemic-era hub dependency and are permanently restructuring their eastern networks.

The latest Port Liner Shipping Connectivity Index (PLSCI), published by the United Nations Conference on Trade and Development (UNCTAD), shows the three major Straits transshipment hubs all losing connectivity in 2026-Q2. Singapore, the world’s busiest transshipment port by volume, fell from a peak of 1,877 in 2025-Q4 to 1,834 in the latest quarter. The contraction is sharper at Port Klang, which dropped 5.0% from its 2025-Q4 high of 1,133 to 1,076. Tanjung Pelepas recorded the steepest decline among the three, falling 7.1% from its 2025-Q1 peak of 609 to 565.

The synchronized downturn marks a structural shift rather than a seasonal dip. Analysts at Sea-Intelligence, which published the data on 2 July 2026, said shipping lines are now actively reorganizing port connectivity by concentrating on regional relay ports and specific export gateways while cutting back on routes built around major transshipment hubs.

The Straits ports absorbed massive structural volumes during the 2024 and 2025 supply chain crises, when congestion, equipment shortages, and schedule unreliability forced lines to consolidate calls at the largest, most resilient terminals. Now, with secondary Indian and Middle Eastern gateways successfully absorbing the latest wave of relay cargo, carriers have the operational breathing space to optimize their eastern networks.

The result is the removal of redundant transshipment strings that were added as emergency measures during the crisis years. Network planners are trimming overlapping services and redirecting relay volumes to newer hubs that offer lower cost bases and less berth congestion.

The trend is not confined to Southeast Asia. Even the largest Chinese export gateways are shedding connectivity. Shanghai and Ningbo posted quarter-on-quarter PLSCI declines of 2.0% and 2.2%, respectively, in 2026-Q2, suggesting that the hub rationalization is a pan-Asian phenomenon.

For terminal operators in the Straits, the decline represents a revenue headwind. Lower connectivity scores translate directly into fewer vessel calls, reduced container handling volumes, and softer storage and ancillary income. For carriers, the restructuring is a margin play: shorter relay legs, lower port dues at secondary hubs, and reduced exposure to congestion penalties at mega-terminals.

Shippers and forwarders should expect more fragmented routing options in the near term. As lines disperse cargo across a wider web of smaller hubs, transit times may lengthen for some trade lanes even as overall network resilience improves. Contract negotiations for 2026-2027 service agreements will likely reflect this new geography, with rates potentially diverging between traditional hub pairs and emerging relay corridors.

The PLSCI data suggests the correction has moved beyond a temporary adjustment. With Indian and Middle Eastern ports now structurally embedded in eastern relay networks, the Straits mega-hubs face a new competitive landscape where their dominance is no longer guaranteed by default.