| 09/09/2026 15:00 |
Investment in Tungsten Recycling Capacity Expansion at Japan New Metals Co., Ltd. |
| 08/06/2026 15:30 |
Presentation Materials for the First Three Months of the Fiscal Year Ending March 31, 2027 |
| 08/06/2026 15:30 |
Consolidated Financial Results for the Three Months Ended June 30, 2026 (Japanese Accounting Standards) |
| 08/06/2026 15:30 |
(Update to Previously Disclosed Matters) Notice Concerning Execution of Final Agreement Regarding the Integration of Businesses for the Purchase of |
| 08/06/2026 15:30 |
(Update to Previously Disclosed Matters) Notice Regarding Additional Trust Contribution for the Stock Compensation Plan |
| 08/06/2026 15:30 |
Notice Concerning Revision to Earnings Forecast |
| 07/31/2026 10:00 |
Investment to Expand Tungsten Recycling Capacity at H.C. Starck Tungsten GmbH |
| 07/08/2026 23:55 |
[Summary] Notice of the Determination of Terms of Issue of Zero Coupon Convertible Bonds due 2030 and Zero Coupon Convertible Bonds due 2032 |
| 07/08/2026 16:00 |
[Summary] Notice of Purchase of Zero Coupon Convertible Bonds of Mitsubishi Materials Corporation (Securities Code: 5711) by J-Link Limited |
| 07/08/2026 16:00 |
[Summary] Notice of the Issuance of Zero Coupon Convertible Bonds due 2030 and Zero Coupon Convertible Bonds due 2032 |
| 07/01/2026 15:30 |
(Update to Previously Disclosed Matters) Establishment of Successor Company for Business Related to the Purchase of Copper Concentrates and the Sale |
| 07/01/2026 15:30 |
Announcement of Application for Listing of Shares of Mitsubishi UBE Cement Corporation on the Tokyo Stock Exchange |
| 06/23/2026 16:30 |
Corporate Governance Report |
| 06/12/2026 15:30 |
Discontinuation of Manufacturing and Sale of Bar Products and ECO BRASS Forged Products in the Copper & Copper Alloy Products Business |
| 06/08/2026 08:00 |
Business Report and Financial Statements |
| 06/03/2026 08:00 |
Notice of the 101st Ordinary General Meeting of Shareholders |
| 05/28/2026 11:30 |
Notice Concerning Execution of Final Agreement Regarding the Integration of Businesses for the Purchase of Copper Concentrates and the Sales of Relate |
| 05/19/2026 14:00 |
Materials for the Medium-term Management Strategy (FYE 2027-2029) Progress Briefing |
| 05/13/2026 15:30 |
Presentation Materials for the Fiscal Year Ended March 31, 2026 |
| 05/13/2026 15:30 |
Notice Regarding Differences Between Forecast and Actual Consolidated Results |
| 05/13/2026 15:30 |
Consolidated Financial Results for the Fiscal Year Ended March 31, 2026 (Japanese Accounting Standards) |
| 05/13/2026 15:30 |
Notice Regarding Continuation of the Stock Compensation Plan |
| 04/02/2026 14:30 |
[Delayed]Corporate Governance Report |
| 03/31/2026 12:15 |
Regarding the Acquisition of Shares in ReElement Technologies Corporation and the Execution of a MOU on Japan-U.S. Collaboration |
| 03/25/2026 15:30 |
Notice Regarding the Recognition of an Impairment Loss on Fixed Assets (Extraordinary Loss) and a Change in a Subsidiary |
| 03/25/2026 15:30 |
Notice Concerning Changes in Directors |
| 02/27/2026 15:30 |
Notice Regarding the Abolition of the Shareholder Benefit Program |
| 02/12/2026 15:30 |
Notice Concerning Revisions to Earnings Forecasts |
| 02/12/2026 15:30 |
Presentation Materials for the First Nine Months of the Fiscal Year Ending March 31, 2026 |
| 02/12/2026 15:30 |
Consolidated Financial Results for the Nine Months Ended December 31, 2025 (Japanese Accounting Standards) |
| 01/30/2026 17:00 |
Notice Concerning Change of Major Shareholder |
| 01/16/2026 15:30 |
(Delayed) Rebuilding the Domestic Production Structure in the Cement-related Business |
| 12/23/2025 15:30 |
Rebuilding the Domestic Production Structure in the Cement-related Business |
| 12/18/2025 11:00 |
Regarding the Acquisition of Shares of Elemental USA E-Waste & ITAD, Inc. |
| 12/10/2025 15:30 |
Notice Concerning Changes in the Representative Executive Officer and Executive Officers |
| 11/26/2025 15:30 |
Notice Regarding the Formulation of the Medium-term Management Strategy (FYE March 2027 - 2029) |
| 11/11/2025 15:30 |
Execution of a MOU Concerning the Integration of Businesses for the Purchase of Copper Concentrates and the Sales of Related Products |
| 11/11/2025 15:30 |
Notice Concerning Revisions to Earnings Forecast |
| 11/11/2025 15:30 |
Presentation Materials for the First Six Months of the Fiscal Year Ending March 31, 2026 |
| 11/11/2025 15:30 |
Consolidated Financial Results for the Six Months Ended September 30, 2025 (Japanese Accounting Standards) |
