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Other Disclosures4425Kudan Inc.Information and Communications, Services and Others

Kudan partners with SoftBank to advance development of a disaster-management digital twin, validating support for post-disaster emergency safety assessments and evacuation shelter planning using Kudan PRISM

Kudan is working with SoftBank Corp. to develop a disaster prevention digital twin using Kudan PRISM. On 11 November 2026, the companies demonstrated its use at the former Esumi Elementary School in Susami Town, Wakayama Prefecture, for remote support in the rapid safety assessment of buildings and evacuation shelter planning.

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Announced details

Kudan PRISMDisaster prevention digital twin
Applicable field (uses covered by this announcement)
Disaster PreventionSupport for rapid safety assessmentsEvacuation shelter planning and operationsAssessment of building damage during disastersMunicipalities and facility management
Launch date11 November 2026 (demonstration date; actual)
What the company reported numerically
Quantitative Effects

Confirmed that all items required for a rapid safety assessment could be checked and evaluated remotely

Usage history

Technical demonstrations conducted 3 times in total, on 29 June, 10 September and 11 November 2026

Relationship between the counterparty and the company
Kudan Inc.4425
Relationship with the Company

Kudan is advancing development and demonstrations in collaboration with SoftBank Corp. SoftBank Corp. serves as the secretariat of the disaster prevention working group of the Susami Smart City Promotion Consortium.

CounterpartySoftBank Corp.Kinan River and National Highway Office, Kinki Regional Development Bureau, Ministry of Land, Infrastructure, Transport and TourismSusami Smart City Promotion ConsortiumSusami Town

No detailed address, capital or year of establishment is provided for SoftBank Corp. The mayor of Susami serves as chair of the Susami Smart City Promotion Consortium. The Kinan River and National Highway Office is an office of the Kinki Regional Development Bureau, Ministry of Land, Infrastructure, Transport and Tourism.

Location (as indicated in this announcement)

Former Esumi Elementary School, Susami Town, Wakayama Prefecture

In this announcement the company addresses none of Contract Value / Offering price / Impact on Business Performance.

Source (materials cited by the company)

Ministry of Land, Infrastructure, Transport and Tourism Smart City Implementation Support Program

SoftBank Corp. press release (11 November 2026)

Susami Town press materials

Announced details
ItemDetails
Names of Products / Services CoveredKudan PRISM, Disaster prevention digital twin
CounterpartySoftBank Corp., Kinan River and National Highway Office, Kinki Regional Development Bureau, Ministry of Land, Infrastructure, Transport and Tourism, Susami Smart City Promotion Consortium, Susami Town
Counterparty overviewNo detailed address, capital or year of establishment is provided for SoftBank Corp. The mayor of Susami serves as chair of the Susami Smart City Promotion Consortium. The Kinan River and National Highway Office is an office of the Kinki Regional Development Bureau, Ministry of Land, Infrastructure, Transport and Tourism.
Relationship with the CompanyKudan is advancing development and demonstrations in collaboration with SoftBank Corp. SoftBank Corp. serves as the secretariat of the disaster prevention working group of the Susami Smart City Promotion Consortium.
Launch date11 November 2026 (demonstration date; actual)
Applicable areaDisaster Prevention, Support for rapid safety assessments, Evacuation shelter planning and operations, Assessment of building damage during disasters, Municipalities and facility management
LocationFormer Esumi Elementary School, Susami Town, Wakayama Prefecture
Quantitative EffectsConfirmed that all items required for a rapid safety assessment could be checked and evaluated remotely
Usage historyTechnical demonstrations conducted 3 times in total, on 29 June, 10 September and 11 November 2026
SourceMinistry of Land, Infrastructure, Transport and Tourism Smart City Implementation Support Program, SoftBank Corp. press release (11 November 2026), Susami Town press materials
Items this document does not state (8)
Contract ValueOffering priceContract DateAward/certification nameAwarding / certifying bodyRegistration number and expiry dateLocation scaleImpact on Business Performance

These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.

The reasons the company gives

The company's own explanation, not something inferred from the numbers.

To integrate facility information and disaster risks in a 3D space, establish an environment in which municipal disaster prevention officials and facility managers can make prompt decisions based on shared information, and improve the efficiency of disaster response.

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Kudan partners with SoftBank to advance development of a disaster-management digital twin, validating support for post-disaster emergency safety assessments and evacuation shelter planning using Kudan PRISM | Kudan Inc. (4425) timely disclosure | Komori