Defective ground-improvement work, data falsification and false reporting
First written in FY2016. 6 of 19 entries say "Restated". Latest entry: 2026-05-13.
Toa moved to the "Worse" side of this theme in 2016.
0 other companies' latest entry also says "Worsened".
- 2026-05-13WorsenedResults
「Taking this matter extremely seriously, the Company established an internal accident investigation committee that includes outside experts. The Company will confirm and analyze the facts, formulate measures to prevent recurrence, and implement them thoroughly.」
Following the new serious accident, risks related to compliance and the restoration of trust have increased, and the Company has moved to an investigation involving outside experts and the formulation of measures to prevent recurrence. - FY2022-Q1MitigatedAnnual report
「Provision for losses related to construction defects 192 –」
The provision for losses related to defective work decreased from ¥192 million at the end of the previous consolidated fiscal year to zero at the end of the first quarter. - FY2021MitigatedAnnual report
「In addition, although the work to repair defects in the ground improvement work has been completed, we aim to become a sustainably growing company capable of meeting the expectations of stakeholders and society by continually working to improve employees’ compliance awareness and fostering a culture of integrity to prevent recurrence.」
Completion of the remedial work for defects is explicitly stated, indicating progress in the physical response to the problem. Preventing recurrence and raising compliance awareness remain ongoing issues. - FY2021-Q3MitigatedAnnual report
「With regard to remedial work for defects arising from defective work and related issues in ground-improvement projects, construction has been completed and the works have been handed over for all projects. At some airports, post-construction monitoring is being conducted, and it has been confirmed that there are no impediments to operation.」
Remedial work for defects progressed through completion and handover for all projects, and it was also confirmed that there were no impediments to operation at some airports. Meanwhile, post-construction monitoring continues. - FY2021-Q1RestatedAnnual report
「In addition, the work to repair defects in the ground improvement work is progressing steadily. We will devote every effort to completing this work as soon as possible and fulfilling our responsibilities as the contractor, while continuing to implement measures to prevent recurrence and thereby work to restore trust.」
It is stated that remedial work for defects remains ongoing and that fulfilling the contractor’s responsibilities and preventing recurrence will continue. The overall problem is not described as resolved. - FY2020-Q3MitigatedAnnual report
「Regarding the construction defects and other issues in the ground improvement work, repair work has been completed at all sites except Fukuoka Airport. We are deploying all available resources to complete the Fukuoka Airport repair work promptly and reliably.」
For the defective work issue, remedial work other than at Fukuoka Airport has been completed, leaving the remedial work at Fukuoka Airport as the only remaining item. The problem itself remains ongoing. - FY2020-Q2MitigatedAnnual report
「Provision for losses related to defective work 4,741 2,738」
The balance of the provision for losses related to defective work decreased from ¥4,741 million at the end of the previous consolidated fiscal year to ¥2,738 million. However, this does not indicate that the problem itself has been resolved. - FY2019MitigatedAnnual report
「Provision for losses related to defective work 10,776 4,741」
The balance of the provision for losses related to defective work decreased from ¥10,776 million at the end of the previous consolidated fiscal year to ¥4,741 million. At the same time, completing remedial work for defects and fulfilling the contractor’s responsibilities remain ongoing issues. - FY2019-Q3Decrease in the balance of the provision for losses related to defective workAnnual report
「Provision for losses related to defective work 10,776 5,407」
The provision for losses related to defective work decreased from ¥10,776 million at the end of March 2018 to ¥5,407 million at the end of the third quarter. This does not indicate that the problem itself has been resolved. The issue related to defective work was classified as materialized because it had already occurred. - FY2019-Q2Recognition of an estimated difference in the provision for losses related to defective workAnnual report
「Segment profit (operating profit) declined 28.5% from the same quarter of the previous year to ¥1,151 million, due to the recognition of an estimation variance in the provision for losses related to construction defects, despite an improvement in construction profit margins.」
The estimated difference in the provision for losses related to defective work was recognized as a factor contributing to lower profit in the domestic civil engineering business. - FY2019-Q1Decrease in the balance of the provision for losses related to defective workAnnual report
「Provision for losses related to defective work 10,776 8,747」
The provision for losses related to defective work decreased from ¥10,776 million at the end of the previous consolidated fiscal year to ¥8,747 million at the end of the first quarter. - FY2018-Q3RestatedAnnual report
「No new business or other risks arose during the nine-month period of the third quarter of the consolidated fiscal year. In addition, there were no material changes to the business and other risks described in the securities report for the previous fiscal year (the 127th term).」
It is explicitly stated that there are no new business or other risks and no material changes to the risks described for the previous fiscal year. - FY2018-Q2RestatedAnnual report
「In 2016, misconduct came to light, including defective work in ground-improvement projects and the bribery indictment of an employee in connection with joint research with a university, which remains pending.」
Defective ground-improvement work and related issues, as well as the bribery indictment in connection with joint research with a university, continue to be described as misconduct in pending proceedings. - FY2018-Q1RestatedAnnual report
「We once again deeply apologize for the significant inconvenience and concern caused to our shareholders and many other stakeholders by the construction defects and other issues in ground improvement work, as well as the alleged bribery by an employee in connection with joint research with a university, which is currently under litigation.」
Defective ground-improvement work and related issues continue to be described as previously occurring misconduct, with no material change during the quarter. - FY2017WorsenedAnnual report
「Operating income was ¥6,196 million, down 47.4% from the previous consolidated fiscal year, and ordinary income was ¥5,897 million, down 44.4%. Net loss attributable to owners of the parent was ¥7,438 million, substantially affected by losses related to defective work, compared with net income attributable to owners of the parent of ¥6,038 million in the previous consolidated fiscal year.」
The company recorded ¥15,374 million in losses related to defective ground-improvement work, which had a substantial impact on net loss of ¥7,438 million. The financial impact of the problem had become quantifiable. - FY2017-Q3RestatedAnnual report
「In May 2016, it came to light that construction defects and false reporting had occurred in ground improvement work performed by our company. Subsequent boring surveys found in October 2016 that sufficient strength had not been confirmed in 2 additional projects. Losses related to these issues, including repair costs arising from the construction defects, may occur in the future. However, because it is difficult at present to reasonably estimate the amount, their impact has not been reflected in the quarterly consolidated financial statements.」
Defective work, false reporting, the newly identified insufficient strength in 2 projects, and the difficulty of estimating future losses continue to be disclosed. - FY2017-Q2WorsenedAnnual report
「Subsequent boring surveys revealed in October 2016 that sufficient strength had not been confirmed in 2 additional projects. Losses related to these issues, including future repair costs arising from defective work, may be incurred in the future. However, as it is difficult to reasonably estimate the amount at present, the impact has not been reflected in the quarterly consolidated financial statements.」
Boring surveys identified insufficient strength in 2 additional projects in connection with the previously identified defective work and false reporting issues, expanding the scope of the problem. The amount of the loss continues to be deemed impossible to reasonably estimate. - FY2017-Q1RestatedAnnual report
「It was discovered that the Company had carried out defective construction, falsified data and made false reports in ground-improvement work at Tokyo International Airport and elsewhere. We submitted to the Ministry of Land, Infrastructure, Transport and Tourism a report prepared by the investigation committee, including lawyers, on the causes and other findings of the investigation and on measures to prevent recurrence. Losses related to this matter may arise in the future, but because it is difficult at this time to reasonably estimate the amount, its impact has not been reflected in the quarterly consolidated financial statements.」
Previously occurring issues, namely defective work, data falsification and false reporting, together with the possibility of future losses and the inability to determine their amount, continue to be disclosed. - FY2016MaterialisedAnnual report
「We established an investigation committee, including lawyers, concerning defective construction in ground-improvement work carried out by the Company at Tokyo International Airport and elsewhere, as well as data falsification and false reports in completion documents and other materials submitted to the ordering party, the Ministry of Land, Infrastructure, Transport and Tourism.」
The fact that defective work and false reporting had been identified is described as the most important issue for the fiscal year.