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About DAIDO STEEL
About DAIDO STEEL
About DAIDO STEEL TOP
A Message from
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Structural Steel
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Die Forging
Alloy Powder
Welding Materials
Titanium Alloy &
Shape Memory Alloy
Target Material,
New Metal
Point Light Source LEDs
Permalloy Foil
Isotropic SmFeN Magnetic Powder and Compounds
(Isotropic SmFeN Bonded Magnets)
Material for Semiconductor
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Sustainability Topics
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Initiatives / JPX-Nikkei 400
Sustainability Library
E:
Preservation of the
Global Environment
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G:
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ALL
Information
About DAIDO STEEL
Products
IR
Sustainability
May 15, 2026
About DAIDO STEEL
IR
（Summary）Notice Concerning Commencement of Tender Offer for the Common Share of Tohoku Steel Co., Ltd. (Securities Code: 5484)（PDF:173KB）
May 15, 2026
IR
Consolidated Financial Results for the Fiscal Year Ended March 31, 2026[Under IFRS] (PDF:271KB)
May 15, 2026
About DAIDO STEEL
Partial Revision to “Notice of Changes in Board Members and Officers”（PDF:138KB）
May 15, 2026
Information
IR
Fiscal Year Ending March 2026 Financial Results Briefing（PDF:2,181KB）
Apr 27, 2026
About DAIDO STEEL
Notice of Changes in Executive Officers
Apr 16, 2026
Products
Development of high-power infrared and red point-source LED dies and SMDs
— Contributing to enhanced sensing precision for collaborative robots and semiconductor manufacturing equipment —
Mar 31, 2026
Information
IR
Sustainability
FY2025 ESG Briefing Q&A Session（PDF:88KB）
Mar 30, 2026
About DAIDO STEEL
IR
Notice Concerning Absorption-Type Merger (Simplified Merger and Short-Form Merger) of a Consolidated Subsidiary
Mar 25, 2026
Information
IR
Sustainability
FY2025 ESG Briefing (PDF:2,104KB)
Mar 23, 2026
Products
Daido Steel Presents ICMD® Use Cases at the ICME Impact Forum
— Driving Faster, Smarter Materials Development Through Digital Design —
Feb 24, 2026
About DAIDO STEEL
Notice of Changes in Board Members and Officers (PDF:111KB)
Feb 2, 2026
About DAIDO STEEL
Notice concerning Completion of Acquisition of All of the Shares of Nippon Koshuha Steel Co., Ltd. to Make it a Wholly Owned Subsidiary and concerning Completion of Change in a Specified Subsidiary
Jan 29, 2026
IR
Fiscal Year ending March 2026 3rd Quarter Results (PDF:616KB)
Jan 29, 2026
IR
Notice Concerning Revisions to Full-Year Consolidated Financial Results Forecasts(PDF:44KB)
Jan 29, 2026
IR
Consolidated Financial Results for the Six Months Ended December 31, 2025[Under IFRS](PDF:214KB)
Jan 8, 2026
Sustainability
INTEGRATED REPORT 2025 (PDF:25,331KB)
May 15, 2026
Information
IR
Fiscal Year Ending March 2026 Financial Results Briefing（PDF:2,181KB）
Mar 31, 2026
Information
IR
Sustainability
FY2025 ESG Briefing Q&A Session（PDF:88KB）
Mar 25, 2026
Information
IR
Sustainability
FY2025 ESG Briefing (PDF:2,104KB)
May 15, 2026
About DAIDO STEEL
IR
（Summary）Notice Concerning Commencement of Tender Offer for the Common Share of Tohoku Steel Co., Ltd. (Securities Code: 5484)（PDF:173KB）
May 15, 2026
About DAIDO STEEL
Partial Revision to “Notice of Changes in Board Members and Officers”（PDF:138KB）
Apr 27, 2026
About DAIDO STEEL
Notice of Changes in Executive Officers
Mar 30, 2026
About DAIDO STEEL
IR
Notice Concerning Absorption-Type Merger (Simplified Merger and Short-Form Merger) of a Consolidated Subsidiary
Feb 24, 2026
About DAIDO STEEL
Notice of Changes in Board Members and Officers (PDF:111KB)
Feb 2, 2026
About DAIDO STEEL
Notice concerning Completion of Acquisition of All of the Shares of Nippon Koshuha Steel Co., Ltd. to Make it a Wholly Owned Subsidiary and concerning Completion of Change in a Specified Subsidiary
Apr 16, 2026
Products
Development of high-power infrared and red point-source LED dies and SMDs
— Contributing to enhanced sensing precision for collaborative robots and semiconductor manufacturing equipment —
Mar 23, 2026
Products
Daido Steel Presents ICMD® Use Cases at the ICME Impact Forum
— Driving Faster, Smarter Materials Development Through Digital Design —
May 15, 2026
About DAIDO STEEL
IR
（Summary）Notice Concerning Commencement of Tender Offer for the Common Share of Tohoku Steel Co., Ltd. (Securities Code: 5484)（PDF:173KB）
May 15, 2026
IR
Consolidated Financial Results for the Fiscal Year Ended March 31, 2026[Under IFRS] (PDF:271KB)
May 15, 2026
Information
IR
Fiscal Year Ending March 2026 Financial Results Briefing（PDF:2,181KB）
Mar 31, 2026
Information
IR
Sustainability
FY2025 ESG Briefing Q&A Session（PDF:88KB）
Mar 30, 2026
About DAIDO STEEL
IR
Notice Concerning Absorption-Type Merger (Simplified Merger and Short-Form Merger) of a Consolidated Subsidiary
Mar 25, 2026
Information
IR
Sustainability
FY2025 ESG Briefing (PDF:2,104KB)
Jan 29, 2026
IR
Fiscal Year ending March 2026 3rd Quarter Results (PDF:616KB)
Jan 29, 2026
IR
Notice Concerning Revisions to Full-Year Consolidated Financial Results Forecasts(PDF:44KB)
Jan 29, 2026
IR
Consolidated Financial Results for the Six Months Ended December 31, 2025[Under IFRS](PDF:214KB)
Mar 31, 2026
Information
IR
Sustainability
FY2025 ESG Briefing Q&A Session（PDF:88KB）
Mar 25, 2026
Information
IR
Sustainability
FY2025 ESG Briefing (PDF:2,104KB)
Jan 8, 2026
Sustainability
INTEGRATED REPORT 2025 (PDF:25,331KB)
