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Japan Strengthens Subsea Cable Infrastructure Amid Security Concerns

Japan Strengthens Subsea Cable Infrastructure Amid Security Concerns

First seen 15 Oct 2026, 08:36 UTC • •

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ThreatCluster AI
ThreatCluster •October 16, 2026 at 07:37 UTC
  • •Japan's MIC has approved subsidies for four companies to enhance submarine cable infrastructure.
  • •The initiative aims to decentralize critical digital assets away from concentrated areas.
  • •Total budget for the Digital Infrastructure Strengthening Project amounts to JPY132.5 billion.

Japan's Ministry of Internal Affairs and Communications has selected four companies to receive subsidies for developing submarine cable landing stations and international cable branch infrastructure. The initiative aims to diversify routes and enhance the resilience of digital infrastructure, particularly in response to the concentration of data centers and cable landing stations in Chiba and Mie Prefectures. The selected companies include SoftBank Corp., IPS Corporation, IPS Pro Co., and Shikoku Electric Power, with funding from a multi-billion-yen budget. The subsidy program is part of Japan's broader Digital Infrastructure Strengthening Project, which has allocated a total of JPY132.5 billion ($1.97 billion) across multiple years. The current status is that the recipient selection has been confirmed, but construction has not yet begun. The initiative is significant for its geographic spread across Hokkaido, Wakayama, and Tokushima Prefectures, aiming to create more resilient communication hubs.

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Timeline

2026-10-09
CIAJ announces subsidy recipients
CIAJ selected four companies for subsidies to develop submarine cable infrastructure as part of a diversification initiative.
Subtelforum
2026-10-14
Japan's MIC details subsidy program
The Ministry of Internal Affairs and Communications outlined the budget and objectives of the Digital Infrastructure Strengthening Project.
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Common questions

Who are the selected companies for the subsidies?
The selected companies are SoftBank Corp., IPS Corporation, IPS Pro Co., and Shikoku Electric Power.
What is the purpose of the subsidy program?
The subsidy program aims to enhance the resilience of Japan's digital infrastructure by diversifying international submarine cable routes.
When will construction begin for the projects?
Construction will begin after the required administrative procedures are completed between CIAJ and the selected recipients.