WHEN the National Budget 2026 was tabled in Parliament by our Prime Minister cum Minister of Finance YAB Datuk Seri Anwar Ibrahim on 10 October 2025, one announcement stood out as a landmark development for East Malaysia: the construction of a new road connecting Kalabakan in Sabah to Simanggaris in North Kalimantan, Indonesia.
While the project may not carry the glamour of mega-highways or large bridges, its strategic value for Borneo cannot be overstated. It represents a physical, economic, and geopolitical bridge between two neighbouring nations on the same island, opening a new chapter for regional cooperation, trade, and shared prosperity.
Let us examines the rationale, design, and wider impact of the Kalabakan-Simanggaris Road, and why it may become one of the most consequential infrastructure projects for Sabah in the coming decade.
Connecting Two Economies, One IslandBorneo is the third-largest island in the world, shared by Malaysia (Sabah and Sarawak), Indonesia (Kalimantan), and Brunei. Despite being geographically connected, its infrastructure has historically been fragmented by borders, terrain, and differing national priorities.
The Kalabakan–Simanggaris Road, stretching approximately 45 kilometres from Malaysia’s side to link with Indonesia’s expanding highway network, seeks to change that. It will form part of a larger Pan-Borneo connectivity system, improving mobility, logistics, and cross-border trade between East Sabah and North Kalimantan.
Once completed, it will lead to IKN (Ibu Kota Nusantara) Indonesia’s new capital city currently almost in the final stage of completion.
Strategic Importance in the Context of IKNIKN, located in East Kalimantan, is less than 600 kilometres from Tawau – closer to Sabah than to Jakarta. As Indonesia relocates its administrative and economic centre to Kalimantan, massive investments are transforming the region’s landscape.
This shift offers unprecedented opportunities for Sabah in areas such as: Construction and engineering services, green energy and water management, essential food and other materials supply, Tourism and logistics, and Cultural and educational exchanges.
The Kalabakan-Simanggaris Road thus becomes Sabah’s gateway to IKN, linking Malaysian firms and investors directly to one of Southeast Asia’s largest emerging development zones.
Instead of viewing the border as a barrier, this project redefines it as a corridor of opportunity.
Economic Impact: Creating a Northern Growth GatewayThe economic logic behind the road is straightforward: connectivity drives commerce. Currently, trade between Sabah and North Kalimantan relies mainly on sea transport through Tawau and Nunukan, which, while important, limits overland movement of goods and people.
A direct road link will reduce transportation time and cost, encourage small and medium enterprises (SMEs) in border towns to expand trade, stimulate agriculture, timber, and manufacturing activities, and attract logistics companies to set up regional hubs.
The Kalabakan area, rich in palm oil and forest resources, stands to benefit from new export routes. Processed goods could move directly to Indonesian markets, while Kalimantan’s industrial materials and food supplies could find easier access to Sabah.
In the long run, such exchanges can help balance regional trade, create local employment, and enhance Sabah’s role as a northern trade hub of Borneo.
Engineering Challenges and Environmental SensitivityConstructing a cross-border highway in Borneo is far from simple. The terrain between Kalabakan and Simanggaris includes undulating hills, forest reserves, and sensitive ecosystems.
Engineers will need to address several challenges such as geotechnical stability: Managing soil erosion, slope protection, and rainfall-induced landslides; Drainage and hydrology: Designing culverts and stormwater systems that withstand tropical downpours; Biodiversity protection: Minimising habitat fragmentation and implementing wildlife crossings where necessary; Sustainable materials and methods: Reducing carbon footprint through eco-friendly design and reuse of construction materials.
Under Budget 2026, the implementing agent such as JKR and others are expected to collaborate closely on technical design and environmental management, ensuring that the project aligns with Environmental Impact Assessment (EIA) and Biodiversity Offset principles.
This is not merely a road through the forest, and it is a test case for responsible infrastructure in sensitive ecological zones.
Security, Customs, and Border InfrastructureBeyond the physical road, cross-border connectivity depends on efficient Customs, Immigration, Quarantine, and Security (CIQS) systems.
The new Kalabakan–Simanggaris link will be complemented by upgraded CIQS facilities on both sides, enabling smoother movement of people and goods while maintaining strict security and biosecurity standards.
On Malaysia’s side, the Immigration Department, Royal Malaysian Customs, and Esscom (Eastern Sabah Security Command) will coordinate operations to ensure the following such as:Streamlined documentation and digital clearance,Safe movement of logistics convoys, andClose monitoring to prevent smuggling or cross-border crime.This modern CIQS complex will also house inspection zones, staff quarters, and security technology systems, serving as a model for future Borneo border posts.
Social Benefits and Regional IntegrationInfrastructure is more than asphalt and bridges, but it changes lives.
For local communities in Kalabakan, Serudong, and Simanggaris, the new road will provide shorter access to healthcare, schools, and markets, encourage border tourism and small-scale trade, and strengthen family and cultural ties between Malaysian and Indonesian border villages that share common ancestry and traditions.
Such connectivity promotes social cohesion and shared prosperity, turning once-remote areas into active participants in regional growth.
In addition, the project supports the goals of the BIMP-EAGA (Brunei Darussalam–Indonesia–Malaysia–Philippines East Asean Growth Area) initiative, which seeks to integrate economic activities across maritime Southeast Asia. The Kalabakan–Simanggaris corridor can become a tangible example of BIMP-EAGA’s ideals in action.
A Catalyst for Industrial and Tourism DevelopmentThe establishment of a reliable overland link is expected to stimulate new industrial clusters in the southern part of Sabah.
Potential developments include the proposed Agro-industrial processing zones in Tawau and Kalabakan, the proposed Cold-chain logistics hubs supporting seafood and agricultural exports; and also, the Eco-tourism circuits linking Tawau Hills Park, Maliau Basin, and North Kalimantan’s conservation areas.
By improving mobility, the road enhances the region’s attractiveness to both domestic and foreign investors. The synergy between logistics, natural resources, and eco-tourism could make the East Coast of Sabah a vibrant new economic growth zone.
Lessons from IKN: Towards Smart and Green ConnectivityAs Indonesia builds its new capital IKN as a green, smart, and low-carbon city, Sabah can observe and learn valuable lessons in urban planning and sustainability.
Through the Kalabakan–Simanggaris connection, knowledge exchange in areas such as the smart drainage systems, the renewable energy grids, the Waste management, and also the Climate-resilient urban infrastructure can benefit Sabah’s own cities like Kota Kinabalu, Sandakan, and Tawau.
Rather than competing, both sides of Borneo can collaborate on sustainability goals, creating a regional model of balanced growth between economy and environment.
Institutional and Governance ConsiderationsInfrastructure success depends not only on engineering excellence but also on good governance.
The Kalabakan–Simanggaris project involves multiple agencies—federal, state, and international. Clear coordination mechanisms will be vital. Recommended measures include the following:Establishing a Joint Border Infrastructure Committee between Malaysia and Indonesia,Implementing transparent procurement and progress monitoring,Engaging local contractors and indigenous communities in non-technical works, andConducting regular joint inspections to ensure safety and environmental compliance.Strong governance will ensure that the project remains on schedule, within budget, and aligned with both countries’ development visions.
Long-Term Vision: Building the Borneo Economic CorridorThe new road may appear local in scale, but its long-term significance is regional. It could become the northern anchor of a wider Borneo Economic Corridor, stretching from Kota Kinabalu and Tawau to Balikpapan and IKN.
This corridor could enable the seamless trade across borders, power and data interconnection for future industries, joint investment zones for renewable energy and manufacturing, and shared tourism branding under a “Visit Borneo” initiative.
Such collaboration would strengthen Malaysia–Indonesia ties while contributing to Asean’s regional connectivity agenda.
Environmental and Indigenous InclusionSabah’s interior is home to indigenous communities such as the Murut and Lundayeh, who have long lived along the Kalabakan-Serudong-Sapangar axis. Proper engagement and consultation are essential to ensure that the project benefits them without disrupting traditional lands.
Potential social inclusion measures should consider and include the local employment in construction and maintenance; the community-based tourism initiatives; the Training programmes in road safety and environmental stewardship; and the fair compensation and livelihood restoration where land acquisition is involved.
By prioritising inclusive development, the project can become a model of people-centred infrastructure.
Challenges AheadNo infrastructure project is without risks. Among the foreseeable challenges are:cost escalation due to terrain and material logistics; environmental compliance delays; cross-border coordination complexities; and maintenance and enforcement after completion.
Addressing these proactively through risk management frameworks, joint task forces, and continuous stakeholder engagement will be key to success.
Conclusion: The Road to Shared ProsperityThe Kalabakan-Simanggaris Road is more than a stretch of pavement and in fact it is a symbol of renewed cooperation and confidence between Malaysia and Indonesia, and between Sabah and Kalimantan.
By linking communities, enabling commerce, and fostering friendship across the border, it embodies the spirit of Borneo’s shared destiny. If designed and implemented with professionalism, transparency, and environmental care, this project will not only open a physical route between two nations.
This will also pave the way for a more connected, resilient, and prosperous Sabah in the decade ahead. It marks the beginning of a new era: one where infrastructure becomes the bridge to partnership, and partnership the path to sustainable growth.
