Indonesia, Malaysia and Singapore have reaffirmed their commitment to keeping the Straits of Malacca and Singapore free, open and safe for international shipping, underscoring the importance of international law and regional cooperation as maritime disruptions and geopolitical tensions continue to threaten major global trade routes.
The three Southeast Asian littoral states made the commitment at the 17th Co-operation Forum, which opened in Singapore on Tuesday, August 25. In a joint statement, the countries affirmed that ships have the right to transit through the waterways under the United Nations Convention on the Law of the Sea (UNCLOS) and international law.
They also stressed that navigational rights and freedoms must be respected both in principle and in practice, while emphasizing that maintaining the safety of navigation and protecting the marine environment is a shared responsibility.
The Straits of Malacca and Singapore are among the world’s most strategically important maritime corridors. More than 100,000 vessels pass through the waterways annually, carrying almost one-quarter of global seaborne trade and nearly one-third of the world’s oil and gas supplies.
The commitment comes as disruptions elsewhere have demonstrated the vulnerability of global supply chains to instability at maritime chokepoints.
Singapore Transport Minister Jeffrey Siow, speaking at the opening of the two-day forum, warned that recent events had shown that open sea lanes cannot be taken for granted.
“Events in the West Asia this year reminded the world that open sea lanes can never be taken for granted,” Siow said, stressing that the three countries would continue working to keep their strategically important waterways free, open and safe.
His remarks reflected growing international concern over disruptions to shipping through the Strait of Hormuz, another critical maritime chokepoint connecting major oil-producing states with global markets.
Siow noted that shipping traffic through the Strait of Hormuz, which previously carried about one-fifth of global oil supplies, had fallen sharply amid conflict and attacks on vessels. Fewer than 20 commodity vessels transited the waterway over one weekend, according to shipping data cited at the forum.
The contrast highlights the importance of maintaining alternative maritime routes and ensuring that major waterways remain governed by international law rather than becoming vulnerable to geopolitical confrontation.
In their joint statement, Indonesia, Malaysia and Singapore reaffirmed the status of the Straits of Malacca and Singapore as “Straits Used for International Navigation.”
The designation means that the right of transit passage applies under the 1982 UNCLOS and customary international law. The three countries emphasized that navigational rights and freedoms should be respected in both principle and practice.
The statement also recognized the contribution of countries that use the straits, international organisations, the maritime industry and other stakeholders.
The littoral states said all these parties have an important role in ensuring navigational safety and environmental protection.
That approach is central to the Cooperative Mechanism on Safety of Navigation and Environmental Protection in the Straits of Malacca and Singapore, established in 2007 by Indonesia, Malaysia and Singapore.
The framework enables the three coastal states to work with user states and other stakeholders on practical measures designed to improve maritime safety, strengthen navigational infrastructure and protect the marine environment.
Siow described the mechanism as a practical demonstration of how countries can translate shared interests into cooperation.
He also noted that the arrangement is the first and only implementation of Article 43 of UNCLOS, which calls for cooperation between states bordering straits used for international navigation and states using those waterways on navigational safety and pollution prevention.
The three countries renewed their commitment to the framework at the forum and expressed appreciation to participating stakeholders for their longstanding contributions.
They also encouraged continued support and participation from user states, international organisations and maritime industry stakeholders.
The forum is expected to focus heavily on how technology can improve safety in one of the world’s busiest maritime corridors.
Among the issues being discussed are the safe introduction of new technologies and alternative fuels, alongside technical projects designed to improve navigation and emergency response.
The three countries have already completed a project allowing digital or virtual navigational aids to be deployed when physical navigational aids are undergoing maintenance.
The system provides vessels with navigational information while physical aids are temporarily unavailable, helping to reduce potential safety risks. More than 50 navigational aids currently guide vessels through the straits, with some supported by voluntary contributions.
The adoption of digital systems reflects the changing nature of maritime navigation as shipping becomes increasingly dependent on advanced technologies, digital information and automated systems.
However, the introduction of new technologies also creates new operational challenges, particularly in one of the world’s most heavily trafficked waterways.
The forum is therefore considering how emerging technologies can be introduced without compromising navigational safety or creating additional risks for commercial shipping.
Alternative fuels are another issue on the agenda.
As the international shipping industry moves toward lower-emission fuels, the introduction of new fuel technologies could create additional safety and operational requirements in major shipping corridors.
The participating countries are expected to examine how such changes can be managed collectively while maintaining the reliability and safety of maritime traffic.
The three countries are also moving toward stronger coordination when ships experience emergencies.
Siow said Indonesia, Malaysia and Singapore would finalise regional guidelines this year to improve coordination when ships in distress require a place of refuge.
The guidelines are intended to strengthen cooperation in situations where a vessel faces serious problems and needs to enter a safe location for assistance.
Such arrangements can become particularly important in a heavily trafficked waterway, where an accident involving a large commercial vessel could affect not only the ship itself but also surrounding traffic, ports, coastal communities and the marine environment.
The need for improved emergency coordination is also connected to another growing concern: fires aboard container ships.
Singapore plans to propose joint measures and procedures for Indonesia, Malaysia and Singapore to respond to cargo fires on container vessels, following an increase in such incidents in recent years.
Container-ship fires can pose complex challenges because vessels may be carrying hazardous materials, while firefighting operations at sea can be difficult and potentially dangerous.
A coordinated regional response could help authorities manage such incidents more effectively and reduce the risk of prolonged disruption to shipping.
The Co-operation Forum is one of three components of the Cooperative Mechanism.
The other two are the Aids to Navigation Fund and the Project Coordination Committee.
Together, the three pillars provide a framework for cooperation between the littoral states and the international maritime community.
The Aids to Navigation Fund supports the maintenance and improvement of navigational infrastructure in the straits, while the Project Coordination Committee helps coordinate specific technical projects involving participating stakeholders.
The forum provides the broader platform for dialogue among the coastal states, user countries, international organisations and the shipping industry.
The arrangement has developed against a backdrop of longstanding cooperation between Indonesia, Malaysia and Singapore.
Siow has previously described the Straits of Malacca and Singapore as an example of what countries can achieve when they cooperate for the common good, even when they have differences over other issues, including unresolved maritime boundaries.
The three countries have worked together for more than five decades to improve navigational safety in their waters.
That cooperation has acquired greater significance as global supply chains face increasingly complex risks, ranging from geopolitical conflicts and attacks on shipping to extreme weather, technological changes and environmental pressures.
The importance of the straits extends well beyond Southeast Asia.
The waterways connect the Indian Ocean with the Pacific and provide one of the principal maritime routes between the Middle East, South Asia, Southeast Asia, China, Japan and South Korea.
For major Asian economies that depend heavily on imported energy and maritime commerce, uninterrupted access to the straits is critical.
The waterways also provide a vital connection for energy shipments. Data from the US Energy Information Administration showed that the Strait of Malacca carried an average of 16.6 million barrels per day of crude oil and petroleum liquids in the second quarter of 2026, even amid broader changes in global shipping patterns.
Any major disruption could therefore have consequences far beyond the three countries bordering the waterways, potentially affecting freight costs, energy markets, manufacturing supply chains and consumer prices across Asia and other regions.
That vulnerability has become more apparent as conflict and instability have disrupted other major maritime chokepoints.
The experience of the Strait of Hormuz has demonstrated how quickly geopolitical tensions can translate into changes in shipping patterns and energy flows.
Against this backdrop, Indonesia, Malaysia and Singapore are seeking to ensure that their own waterways remain governed by predictable international rules and practical cooperation.
The three countries’ latest pledge therefore goes beyond a statement about maritime security. It represents an effort to preserve the stability of one of the world’s most important commercial arteries at a time when global shipping is facing increasing geopolitical and operational risks.
As the two-day forum continues, participants are expected to discuss measures covering new technologies, alternative fuels, navigational infrastructure, emergency response and environmental protection.
