Notice Regarding the Acquisition of Shares of aini Co., Ltd. (Making it a Subsidiary)

Tsukui Corporation (Headquarters: Yokohama City, Kanagawa Prefecture; Representative Director and President: Takeshi Takabatake; hereinafter "the Company") announces that it has acquired shares of aini Co., Ltd. (Headquarters: Miyazaki City, Miyazaki Prefecture; Representative Director: Toru Kakiuchi; hereinafter "aini") as of April 1, 2026, making it a wholly-owned subsidiary.

❚ Purpose of Share Acquisition Established in November 2019, aini commenced its home-visit nursing business in March 2020. It provides highly specialized home-visit nursing to customers with diverse needs, including those in palliative care, children, and individuals requiring mental health support. In particular, for peritoneal dialysis patients, whose cases are increasing in Miyazaki Prefecture, aini is actively working to improve the quality of regional medical care by providing support for home life and strengthening cooperation with nearby home-visit nursing stations. Furthermore, in January 2026, aini launched its in-home care support business, and by strengthening collaboration with the home-visit nursing business, it is building a more integrated and seamless home support system. Through this acquisition, the Company will maximize aini's strengths and further expand its services towards realizing its mission: "Facing the challenges of a super-aging society and creating an era where people live happily for 100 years."

❚ Overview of aini Co., Ltd. Trade Name: aini Co., Ltd. Representative: Toru Kakiuchi, Representative Director Head Office Location: Yasukouchi Office 202, 3326 Kubota, Otsuka-cho, Miyazaki City, Miyazaki Prefecture Date of Establishment: November 20, 2019 Business Activities: Operation of home-visit nursing business and in-home care support business Website: https://www.aini3326.com/

❚ List of Business Offices ● Home-Visit Nursing Office Name: Home-Visit Nursing Station aini Office Location: Yasukouchi Office 202, 3326 Kubota, Otsuka-cho, Miyazaki City, Miyazaki Prefecture Date of Designation: March 1, 2020 Number of Employees: 19 Number of Customers: 116

● In-Home Care Support Office Name: Care Plan Center Tomori Office Location: Nagatomo Building 1F101, 2768-3 Shironoshita, Otsuka-cho, Miyazaki City, Miyazaki Prefecture Date of Designation: January 1, 2026 Number of Employees: 1 Number of Customers: 44

❚ Executive Structure After Share Acquisition Position: Representative Director and President, Name: Toru Kakiuchi, Concurrent Positions in Group Companies: — Position: Director, Name: Koji Ishii, Concurrent Positions in Group Companies: Executive Officer and General Manager of Medical Business Division, Tsukui Corporation Position: Director, Name: Naoki Watanabe, Concurrent Positions in Group Companies: Executive Officer and General Manager of Medical Management Promotion Division, Tsukui Corporation

❚ About Tsukui Corporation Tsukui Corporation started its nursing care business in 1983 and currently operates over 560 day service centers nationwide as its core, along with home nursing care services (home-visit care, home-visit bathing, in-home care support, etc.), residential nursing care services (paid nursing homes with care, serviced senior housing, group homes, and other residences), and home nursing services (home-visit nursing, hospice). The Tsukui Group has expanded its business, with nursing care as its core, and has grown into a company that now operates human resources businesses, leasing businesses, IT businesses, and more. With the mission of "Facing the challenges of a super-aging society and creating an era where people live happily for 100 years," we will contribute to the realization of a rich society where everyone can live their lives as they wish until the very end in the community they are accustomed to. ▶ Tsukui Corporation Corporate Website: https://corp.tsukui.net/ ▶ Tsukui Corporation Service Website: https://www.tsukui.net/