Tranche Update on Okano Valve Mfg.Co.Ltd.'s Equity Buyback Plan announced on February 9, 2023.

OKANO VALVE MFG.CO.LTD. is a Japan-based company engaged in the valve business and the maintenance business. The Company operates in two business segments. The Valve segment is engaged in the manufacture and sale of valves such as globe valves, gate valves, check valves, safety valves, relief valves, screw-down stop check valves, drain valves, lining valves and control valves, as well as parts and cast steel materials for nuclear power plants, thermal power plants and other industrial plants. The Maintenance segment is engaged in the provision of maintenance services for delivered valves, replacement services for parts, and other periodic valve inspection services to maintain the safety and soundness of valves at power plants.