World’s crucial trade routes at risk

GLOBAL TRADE

Conflict, climate change and geopolitical rivalry are placing growing pressure on the chokepoints that underpin global trade. The bigger question is what happens when multiple routes come under pressure at once.

THE closure of the Strait of Hormuz has focused attention on one of the world’s most important trade routes.

But a new Sibylline report warns that the Gulf is only one of several chokepoints facing growing pressure from conflict, climate change, trade disputes and geopolitical rivalry.

From the Red Sea and Taiwan Strait to the Panama Canal and Strait of Gibraltar, disruption to a handful of critical transit routes could have far-reaching consequences for global trade, energy markets and supply chains.

More than six years after the Covid-19 pandemic exposed weaknesses in global supply chains, many of those vulnerabilities remain.

While the specific threats vary from region to region, analysts warn that multiple risks are increasingly converging on the routes that underpin global commerce.

Annabel Walker, Associate Analyst Europe and one of the report’s authors, says recent tensions in Hormuz demonstrate how disruption in a relatively small geographic area could have global consequences.

“The developments in Hormuz really exemplify the global implications of disruption through one small waterway because of the outsized impacts that a tiny section of water can have on the global economy and on energy markets.”

Hormuz remains one of the world’s most important trade arteries, handling around a fifth of global oil flows. Any prolonged disruption can rapidly increase energy prices, insurance costs and shipping rates.

The concern, however, is not simply the disruption of a single route, but the possibility that multiple critical chokepoints could face pressure simultaneously from entirely different causes.

One of the most strategically significant routes is the Strait of Malacca, the narrow corridor linking the Indian Ocean and South China Sea.

More than 100,000 vessels transit the waterway each year, carrying around 20% of global maritime trade by volume, including 29% of seaborne oil flows and roughly 25% of all cars sold globally.

“China is perhaps one of the most vulnerable countries to trade disruption through this strait,” says Asia-Pacific Associate Analyst Kalos Lau.

Around 80% of China’s imported crude oil and more than two-thirds of its maritime trade pass through the strait.

“If the strait is closed, it would cause imminent energy supply disruption to China,” he adds.

Beijing has long referred to the vulnerability as the “Malacca Dilemma” and has invested heavily in alternative ports, infrastructure projects and transport corridors designed to reduce dependence on the route.

Earlier this year, Indonesia proposed charging levies on vessels transiting the strait, although the proposal was later withdrawn.

The episode highlighted how governments increasingly view trade routes as sources of strategic leverage.

Elsewhere, the Red Sea has become a case study in how relatively inexpensive weapons can threaten critical global trade routes.

MENAT Analyst Owen Williams says: “The Bab al-Mandab Strait is exposed to disruption from a range of state and non-state actions.”

Since late 2023, Houthi attacks on commercial shipping have repeatedly forced vessels to avoid the route and divert around the Cape of Good Hope, adding around 20 days to transit times between Europe and Asia.

Williams warns that any prolonged disruption would hit economies dependent on imports moving through the Red Sea and Suez Canal.

The attacks have demonstrated how inexpensive drones and missiles can threaten major shipping lanes and force operators to rethink established routes.

Not all threats to global trade stem from conflict.

The Panama Canal, one of the world’s most important man-made trade routes, faces growing pressure from climate change and increasingly volatile weather patterns.

“The biggest risk facing the Panama Canal is actually natural disasters, and more specifically we’re looking at drought,” says Americas Lead Analyst Lewis Galvin.

He notes that “four out of its five driest years” have occurred during El Niño periods.

Falling water levels have repeatedly reduced transit capacity through the canal, creating delays for cargo moving between Asia and the US East Coast.

In response, governments and businesses are increasingly investing in alternative transport corridors, rail links and logistics networks designed to reduce dependence on vulnerable maritime routes.

The Taiwan Strait presents another major concern.

A Chinese quarantine around Taiwan would almost certainly disrupt transit through the strait, though which around a fifth of global maritime trade passes.

Almost 90% of the world’s most advanced logic chips are manufactured in Taiwan, creating a concentration of risk with global implications for electronics, automotive and AI supply chains.

That disruption would place pressure on electronics, automotive and semiconductor supply chains while also affecting energy shipments to China, Taiwan, Japan and South Korea.

Alternative routes exist, but they would add significant time and cost while creating further pressure on already congested regional shipping networks.

Closer to Europe, attention is increasingly turning to the Strait of Gibraltar, where Russian shadow fleet activity has increased as Moscow seeks to sustain energy exports and circumvent Western sanctions.

The Spanish Navy’s maritime surveillance centre now identifies around 50 Russian shadow-fleet vessels in the strait each week, a notable increase in recent years.

“The Strait of Gibraltar is a hard chokepoint, and even moderate or minor disruption could have significant implications for global trade,” says Walker.

She warns that tougher enforcement against the shadow fleet could raise the risk of maritime confrontations in and around the waterway.

While a full-scale blockade remains highly unlikely, analysts warn that increased sanctions enforcement, maritime confrontations or Russian retaliation could raise commercial risks in one of Europe’s most important maritime gateways.

The report also examines risks affecting the Turkish Straits, North Sea and US-Mexico border, underlining the breadth of pressures facing global trade networks.

Taken together, the findings point to a broader shift in how governments and businesses think about supply-chain resilience.

The Covid-19 pandemic exposed the dangers of supply chains optimised for speed and cost but lacking redundancy.

For businesses, the challenge is no longer identifying a single point of failure, but understanding how multiple threats are affecting critical trade routes at the same time.

Walker says recent events have highlighted the need for organisations to rethink traditional supply-chain assumptions.

“It just reinforces the need for just in case as opposed to just in time supply chains.”

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