search
Technologies and
Solutions
Civil Engineering Technology
Offshore Wind
Architectural Technologies
Environmental Technologies
Technical Research Centers
Projects
Civil Engineering Works
Building Construction Works
Overseas Works
Company
Profile
Greetings
Corporate Identity and Code of Conduct
Health & Safety, Environmental and Quality Management System Policies
Company Profile
Directors, Auditors and Executive officers
Corporate Organization
History
Places of Business
Group Companies
Recruit
Career recruitment information for offshore wind section.
Sustainability
Toyo Construction Group’s Sustainability
Latest Integrated Report
Topics
General News
Technical News
IR News
TOYO HISTORY
Contact us
Language
日本語
ENGLISH
TOYO HISTORY
LANGUAGE
News Release
IR News
2025.12.15
Notice Regarding the Company’s Share Delisting from the Stock Exchange
[102KB: PDF]
IR News
2025.11.13
Notice Regarding the Approval of the General Meeting of Shareholder for Share Consolidation, Abolition of the Trading Share Unit Provision
[173KB: PDF]
IR News
2025.11.10
Historical Data(FY2023-FY2025)
IR News
2025.11.10
Summary of Consolidated Financial Results for the cumulative Second Quarter (Semi-annual Term) Ended September 30, 2025 Based on Japanese GAAP
[717KB: PDF]
IR News
2025.11.10
Supplemental Document April -September period of the Fiscal Year ending March 31, 2026
[1972KB: PDF]
IR News
2025.10.21
Convocation Notice of an Extraordinary General Meeting of Shareholders
[243KB: PDF]
IR News
2025.10.14
Notice Regarding the Cancellation of Treasury Shares
[110KB: PDF]
IR News
2025.10.14
Convening an Extraordinary General Meeting of Shareholders for Share Consolidation, Abolition of the Trading Share Unit
[263KB: PDF]
IR News
2025.10.02
Notice Regarding the Credit Rating Upgrade
[164KB: PDF]
IR News
2025.09.30
Notice Concerning Change of a Representative Director (Resignation) and Resignation of Directors
[144KB: PDF]
General News
IR News
Technical News
movie
Career recruitment information for offshore wind section.
Toyo Construction Group’s
Sustainability.
Latest
Integrated Report
Projects
Civil Engineering Works
Building Construction Works
Overseas Works
Civil Engineering Works
Oita Airport
Building Construction Works
Oshima Hospital Psychiatry and Neurosurgery Wards
Building Construction Works
National Sanatorium Okinawa Airakuen
Civil Engineering Works
Osaka Port Yumesaki Tunnel (Immersed Tunnel)
Civil Engineering Works
Shin-Tomei Expressway Shizuoka-Higashi Section
Overseas Works
Shianoukville Port Development, Multipurpose Terminal
Overseas Works
Mindanao Container Terminal
Civil Engineering Works
Shikoku Expressway Yakizaka 1st Tunnel
Building Construction Works
Muroo Kuwana Center
Building Construction Works
Oizumi Health Cooperative Hospital
Technologies and Solutions
Civil Engineering Technology
Offshore Wind
Architectural Technologies
Environmental Technologies
Technical Research Institute
Trends
Building Life Cycle Cost (LCC) Assessment
Port and Harbor/Offshore/Coastal Structures
Detached Breakwater of Gravity Type: Barrier-Win
Ground Improvement
SGM Lightweight Soil Construction Method
Construction Technologies Using Work Ships
Deep Cement Mixing Construction Method: DCM Construction Method
Treatment of Harmful Sediments
Portable Dredging Method: Castle Method
Soil/Ground Environment Research Facilities
Drum Centrifuge Model Test for Geotechnical Problems
Treatment of Harmful Sediments
High Concentration Bottom Mud Dredging Construction Method: KAREN Method
Liquefaction Prevention Measures
Soft Ground Countermeasure Construction Method: Network Drain Construction Method
Tsunami/Storm Surge Measures
Tsunami Occurrence, Propagation, and Run-up Calculation Program: T-TOPPRS
Hydraulic Engineering Research Facilities
Wave Basin with Multidirectional Random Wave Generator
TOYO HISTORY
First Period
From the founding of the Company to the end of the Second World War
Second Period
From the end of WWII to 1965
Third Period
1965-1975
Fourth Period
1975-1984
Fifth Period
1985-1998
Sixth Period
1998 to the present
Read more
Language
日本語
ENGLISH
Search