Notice Concerning Start of Geothermal Resources Surveys in the Esan District of Hakodate in Hokkaido and Mitsubishi Materials Corporation’s Participation in the Project

Notice Regarding Partial Amendments to the Articles of Incorporation

Notice of Continuation of Non-Performance-Based Stock Compensation Plan for External Directors

Notice of Revenue from Electricity Sales in April 2022

Briefing on Financial Results for the Fiscal Year Ending March 2022

Supplementary Material onFinancial Results for the Fiscal Year Ending March 2022

Consolidated Financial Results for the Fiscal Year Ended March 31, 2022 (International Financial Reporting Standards (IFRS)) (Non–audited)

Notice Regarding Changes of Directors

Notice Concerning Reduction of Executive Compensation

Notice of Revision to Full-year Consolidated Forecasts (IFRS)