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Other Disclosures4011Headwaters Co.,LtdInformation and Communications, Services and Others

AI-assisted risk assessment for construction plans used by approximately 3,000 J-POWER group employees and ヘッドウォータース

ヘッドウォータース built a system that uses AI to support J-POWER group employees, approximately 3,000 of whom use it, in checking hazards in construction plans. Validation improved the accuracy of AI-based risk identification, and the company is advancing continued use and expansion in the production environment.

Worth reading
75Important
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
8.7
Improvement in recall (percentage points)
Wording
Conditional
How definitive the wording is.

Announced details

AI-powered construction plan risk assessment support system
Applicable field (uses covered by this announcement)

Construction plan risk assessment, safety management, and transmission tower construction (tower foundations, tower assembly and logging)

Launch dateImprovements supporting deployment to the production environment and use in actual operations are underway, but the specific start date is Not disclosed.
What the company reported numerically
Quantitative Effects

Recall improved by 8.7 percentage points, from 67.6% to 76.3%; precision improved by 11.1 percentage points, from 35.0% to 46.1%; and the number generated per case declined by approximately 13.4%, from 145.8 to 126.3 (accuracy validation conducted in July–September 2026).

Usage history

Used by approximately 3,000 J-POWER group employees

Relationship between the counterparty and the company
Headwaters Co.,Ltd4011
Relationship with the Company

ヘッドウォータース built the system for J-POWER and is supporting the development of the production environment and ongoing improvements. Capital and personnel relationships: Not disclosed.

CounterpartyElectric Power Development Co.,Ltd. (J-POWER)

Head office: Chuo-ku, Tokyo; Representative Director and President: Kato Hideaki (加藤英彰). Other business activities, capital and year of establishment: Not disclosed.

Location (as indicated in this announcement)

Used by approximately 3,000 J-POWER group employees

Impact on Business Performance

The company expects this to lead to expanded business opportunities over the medium to long term, but the specific impact on revenue and profit from this project is Not disclosed.

The company does not address Contract Value / Offering price.

Source (materials cited by the company)

Reports based on the correct answers defined by J-POWER, the target work types and the test conditions

Announced details
ItemDetails
Names of Products / Services CoveredAI-powered construction plan risk assessment support system
CounterpartyElectric Power Development Co.,Ltd. (J-POWER)
Counterparty overviewHead office: Chuo-ku, Tokyo; Representative Director and President: Kato Hideaki (加藤英彰). Other business activities, capital and year of establishment: Not disclosed.
Relationship with the Companyヘッドウォータース built the system for J-POWER and is supporting the development of the production environment and ongoing improvements. Capital and personnel relationships: Not disclosed.
Launch dateImprovements supporting deployment to the production environment and use in actual operations are underway, but the specific start date is Not disclosed.
Applicable areaConstruction plan risk assessment, safety management, and transmission tower construction (tower foundations, tower assembly and logging)
Location scaleUsed by approximately 3,000 J-POWER group employees
Quantitative EffectsRecall improved by 8.7 percentage points, from 67.6% to 76.3%; precision improved by 11.1 percentage points, from 35.0% to 46.1%; and the number generated per case declined by approximately 13.4%, from 145.8 to 126.3 (accuracy validation conducted in July–September 2026).
Usage historyUsed by approximately 3,000 J-POWER group employees
Impact on Business PerformanceThe company expects this to lead to expanded business opportunities over the medium to long term, but the specific impact on revenue and profit from this project is Not disclosed.
SourceReports based on the correct answers defined by J-POWER, the target work types and the test conditions
Items this document does not state (7)
Contract ValueOffering priceContract DateAward/certification nameAwarding / certifying bodyRegistration number and expiry dateLocation

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.

The objectives are to prevent hazards from being overlooked, improve the efficiency of routine operations, reduce reliance on individual expertise, pass on technical knowledge and experience, and ensure a consistent level of assessment accuracy.

How to read this page

This is not the documentKomori reads the disclosure the company filed and writes this summary. Figures are as stated by the company and are not audited.
Weight is not a verdictIt measures how much this changes what the company had already told the market. It is not a view on the shares.
Corrections happenIf the company reissues this disclosure, the page is rebuilt from the corrected version and the revision number moves up.
AI-assisted risk assessment for construction plans used by approximately 3,000 J-POWER group employees and ヘッドウォータース | Headwaters Co.,Ltd (4011) timely disclosure | Komori