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Other Disclosures1447SAAF Holdings Co.,Ltd.Construction and Materials

SAAFホールディングスグループ Begins PoC of the “Mimamawari Denshobato” IoT System for Lightning Detection and Forecasting at a Taisei Corporation Tunnel Construction Site

NXTech株式会社, a group company, will begin a proof of concept (PoC) for the Lightning Detection and Forecasting IoT System “みまわり伝書鳩” at a TAISEI CORPORATION tunnel construction site in July 2026. The PoC will verify the collection and management of WBGT and weather data in addition to lightning information, as well as the delivery of alert notifications to managers and workers.

Worth reading
70In focus
0–100. This measures how worthwhile something is to read, not how good or bad the company is.
Direction
Improvement
Direction inferred from the company’s description.
Scale
40
Within a 40-kilometer radius
Wording
Conditional
How definitive the wording is.

Announced details

Lightning Detection and Forecasting IoT System “みまわり伝書鳩”
Applicable field (uses covered by this announcement)

Tunnel construction and safety management at civil engineering and construction sites

Launch dateBegins in July 2026 (whether this is an actual start or a planned start is difficult to determine because the main text is inconsistent)
What the company reported numerically
Quantitative Effects

Lightning detection: within a 40-kilometer radius; lightning forecasts: up to 60 minutes ahead. The system is stated to substantially reduce the time and effort required to prepare reports and daily activity reports.

Relationship between the counterparty and the company
SAAF Holdings Co.,Ltd.1447
Relationship with the Company

NXTech株式会社 is a company within the SAAFホールディングスグループ and will conduct the PoC at a TAISEI CORPORATION tunnel construction site. Details of capital and personnel relationships: Not disclosed

CounterpartyTAISEI CORPORATION

Head office: Shinjuku-ku, Tokyo; Representative Director and President: Aikawa Yoshio (相川善郎); business activities, capital and year established: Not disclosed

Location (as indicated in this announcement)

TAISEI CORPORATION tunnel construction site (location: Not disclosed)

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

Source (materials cited by the company)

Japan Meteorological Agency “Lightning Nowcast” data

Announced details
ItemDetails
Names of Products / Services CoveredLightning Detection and Forecasting IoT System “みまわり伝書鳩”
CounterpartyTAISEI CORPORATION
Counterparty overviewHead office: Shinjuku-ku, Tokyo; Representative Director and President: Aikawa Yoshio (相川善郎); business activities, capital and year established: Not disclosed
Relationship with the CompanyNXTech株式会社 is a company within the SAAFホールディングスグループ and will conduct the PoC at a TAISEI CORPORATION tunnel construction site. Details of capital and personnel relationships: Not disclosed
Launch dateBegins in July 2026 (whether this is an actual start or a planned start is difficult to determine because the main text is inconsistent)
Applicable areaTunnel construction and safety management at civil engineering and construction sites
LocationTAISEI CORPORATION tunnel construction site (location: Not disclosed)
Quantitative EffectsLightning detection: within a 40-kilometer radius; lightning forecasts: up to 60 minutes ahead. The system is stated to substantially reduce the time and effort required to prepare reports and daily activity reports.
SourceJapan Meteorological Agency “Lightning Nowcast” data
Items this document does not state (9)
Contract ValueOffering priceContract DateAward/certification nameAwarding / certifying bodyRegistration number and expiry dateLocation scaleUsage historyImpact 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 reduce the risk of accidental detonation of electric detonators caused by lightning strikes during blasting operations for tunnel construction and to support safety measures, including evacuating workers. The PoC will also verify the system’s effectiveness in actual operations and use feedback from the site to improve its functions.

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SAAFホールディングスグループ Begins PoC of the “Mimamawari Denshobato” IoT System for Lightning Detection and Forecasting at a Taisei Corporation Tunnel Construction Site | SAAF Holdings Co.,Ltd. (1447) timely disclosure | Komori