The JV venture, often called the Intra-Asia Marine Cable (I-AM Cable), will hyperlink Japan, Malaysia, and Singapore; it’s between NTT Knowledge, Sumitomo and JA Mitsui Leasing
In sum – what to know:
Intra-Asia system – NTT Knowledge, Sumitomo and JA Mitsui Leasing fashioned I-AM NW to construct and function a $1bn submarine cable linking Japan with Southeast and East Asia.
Excessive-capacity design – WSS and SDM applied sciences allow as much as 320 Tbps of capability with adaptable bandwidth to satisfy evolving site visitors wants.
Regional resilience – A number of Japanese touchdown factors enhance redundancy, catastrophe resilience and Japan’s function as a regional information hub.
Japanese corporations NTT Knowledge Group, Sumitomo Company and JA Mitsui Leasing have introduced the creation of a brand new three way partnership, Intra-Asia Marine Networks (I-AM NW), to construct and function a significant submarine communications system connecting Japan with key markets throughout Asia.
The venture, often called the Intra-Asia Marine Cable (I-AM Cable), will hyperlink Japan, Malaysia, and Singapore, with extra connections to Korea, the Philippines, and Taiwan. The full venture price is estimated at roughly $1 billion.
The companions famous that the brand new cable system is designed to help rising information and AI-driven demand throughout Asia by strengthening regional connectivity and resilience.
Japan’s geographic place between Asia and the US makes it a essential information hub. The I-AM Cable will safe a number of routes from three Japanese touchdown stations in Chiba, Mie and Fukuoka to Southeast Asia, enhancing redundancy and resilience towards pure disasters.
The system will incorporate wavelength selective change (WSS) know-how, permitting operators to remotely regulate bandwidth by route, in addition to area division multiplexing (SDM) know-how supporting as much as 16 fiber pairs per cable. Collectively, these applied sciences will ship a complete design capability of round 320 terabits per second.
I-AM NW will oversee the venture from planning via to the sale of communication circuits, offering companies to world know-how corporations and telecom operators throughout Asia, the companions mentioned.
In November 2025, Google introduced TalayLink, a brand new subsea cable system geared toward connecting Australia and Thailand, highlighting that the brand new subsea system is designed to extend geographic range and strengthen digital connectivity throughout the Asia-Pacific area.
Additionally in November, Google had unveiled Dhivaru, a brand new Trans-Indian Ocean subsea cable system that may hyperlink the Maldives, Christmas Island, and Oman. Along with the subsea cable system, Google additionally mentioned it should construct two new connectivity hubs within the Maldives and Christmas Island.
