Varuna Cable System Indonesia Submarine Fiber Overview
On April 1, 2022, PT Communication Cable Systems Indonesia Tbk. (CCSI) and PT NAP Info Lintas Nusa (Matrix NAP Info) formed a joint venture called PT Varuna Cahaya Santosa to build the Varuna Cable System Indonesia submarine fiber network. This high‑capacity subsea system will enhance domestic connectivity and support rising bandwidth demand across the archipelago.
Together, the partners aim to deliver a modern, resilient backbone that serves carriers, enterprises, and cloud providers. In addition, the project strengthens Indonesia’s role as a regional digital hub.
Designing the Varuna Cable System Indonesia Submarine Fiber
Under the joint venture, CCSI will manufacture the 48‑core submarine fiber optic cable for the Varuna Cable System. The lightweight, repeaterless design will use single‑ or double‑armored cable and comply with multiple international certification standards.
Project plans target network construction completion within 24 months. After that, the team will deploy the cable along Indonesia’s national corridor, which improves coverage, resilience, and route diversity.
3,400 km Loop Connecting Key Indonesian Islands
The Varuna Cable System Indonesia submarine fiber route will span about 3,400 km and form a loop that connects major islands and cities. The system will link: Java, Bali, Lombok, Sumbawa, Labuan Bajo, Sulawesi, Kalimantan, Bawean, and Madura Island, then return to Java.
By creating a loop, the network increases redundancy and uptime for users. If one segment experiences a fault, traffic can reroute in the opposite direction, which improves service continuity.
Strategic Cooperation with Mitsui
CCSI and Matrix NAP Info also reported that Mitsui & Co., Ltd. has expressed interest in joining PT Varuna Cahaya Santosa. This potential three‑party cooperation would bring additional global experience, capital, and commercial reach to the Varuna Cable System.
According to Peter Djatmiko, president director of CCSI and VCS, the CCSI / Matrix NAP Info / Mitsui collaboration shows a strong commitment to cross‑industry strategic partners that will use the Varuna network. As a result, customers can expect a robust, long‑term platform for their connectivity needs.
CCSI’s Submarine Cable Manufacturing Capability and History
CCSI is currently Indonesia’s only cable manufacturer capable of producing submarine cables. Its factory in the Krakatau Industrial Estate in Cilegon, Banten can produce up to 1.6 million fiber km per year, which supports both domestic and regional subsea projects.
The company traces its origins to 1996 as PT Siemens Kabel Optik, a joint venture with Siemens AG (Germany). Later, Corning Inc. acquired the business before it transitioned to local ownership as CCSI. Since then, CCSI has maintained a long partnership with Corning, which continues to supply optical fiber for the CCSI plant.
