- From Hormuz to Malacca, Asia confronts fragility of critical maritime chokepoints
The ongoing disruption in the Strait of Hormuz has drawn renewed attention to the security of the Strait of Malacca, the world’s busiest shipping lane and a critical artery for global trade and energy flows.
Stretching roughly 900 kilometers and bordered by Indonesia, Thailand, Malaysia, and Singapore, the Strait of Malacca serves as the shortest maritime route linking East Asia with the Middle East and Europe.
It is estimated that about 22 percent of global maritime trade passes through the strait, including vast volumes of oil and gas shipments bound for major Asian economies such as China, Japan, and South Korea.
According to the U.S. Energy Information Administration, the strait is the world’s largest oil transit chokepoint, surpassing even Hormuz.
In the first half of 2025 alone, around 23.2 million barrels of oil per day moved through the Malacca Strait—representing nearly 29 percent of global seaborne oil flows, compared to 20.9 million barrels through Hormuz.
Shipping traffic through the strait continues to rise, with Malaysian data showing more than 102,500 vessels passing through in 2025, up from about 94,300 the previous year.
While some larger tankers opt for alternative routes south of Indonesia due to draft limitations, these detours increase travel time, costs, and potential supply disruptions.
Despite its importance, the Strait of Malacca faces several vulnerabilities. At its narrowest point in the Phillips Channel, it is only about 2.7 kilometers wide, increasing the risk of collisions, groundings, and oil spills. Shallow depths in some areas also impose constraints on large vessels navigating the route.
Security threats remain a persistent concern, with piracy and armed robbery incidents reported over the years.
Regional monitoring bodies noted at least 104 such incidents last year, though cases declined in early 2026.
The strait holds particular strategic importance for China, with around 75 percent of its seaborne crude oil imports passing through it. Analysts warn that any disruption, whether from conflict in the South China Sea or tensions around Taiwan, could have far-reaching consequences for global trade.
Experts also point to the growing use of the strait for illicit ship-to-ship oil transfers, a practice used to obscure the origin of cargo.
As geopolitical tensions intensify, the Hormuz crisis has underscored the broader vulnerability of key maritime chokepoints, placing the security of the Strait of Malacca firmly in the global spotlight.
