Tranche Update on Mitani Sekisan Co., Ltd.'s Equity Buyback Plan announced on February 14, 2024.

MITANI SEKISAN Co., Ltd. is a Japan-based company mainly engaged in the manufacture and sale of construction materials. The Company operates in two business segments. The Secondary Concrete Products-related segment is engaged in the provision of concrete piles, poles, concrete blocks, gravels and the leasing of frameworks for wave dissipating concrete blocks. The Information-related segment is engaged in the building of information systems, as well as the sale of hardware and software. The others business includes the environment sanitation, facility management, hotel business, technology provision revenue, real estate rental, solar power revenue and others.