World's Smallest, Most Essential Race "SPERM RACING JAPAN GRAND PRIX 2026" to be Held This Autumn

HDX Cell Bank Co., Ltd. endorses April Dream, which aims to make April 1st a day to announce dreams. This press release represents the dream of "HDX Cell Bank Co., Ltd."

HDX Cell Bank Co., Ltd. (Head office: Shinjuku-ku, Tokyo / Representative: Toru Mukai) will hold the "SPERM RACING JAPAN GRAND PRIX 2026," the world's smallest competition, in Tokyo this autumn.

This event is a new initiative aimed at opening up reproductive health to society by observing and visualizing sperm movement in real-time on a microscopic, dedicated silicon micro-course and turning it into a competition.

Sperm racing was held in the United States last year and garnered significant attention. This movement will be uniquely evolved in Japan and presented to society as entertainment.

This initiative aims to make the theme of reproductive health more accessible and create opportunities for open discussion. Simultaneously, it supports the life design of younger generations by providing infrastructure that "preserves future options."

Background While reproductive health is a crucial theme in individual life planning, opportunities for open discussion remain limited. Furthermore, although preventive sperm freezing is beginning to attract attention as a means to preserve future options, it is still chosen by only a limited number of people. However, this trend has certainly begun. Our company will transform this into a "new normal."

Initiatives ### ① SPERM RACING JAPAN GRAND PRIX 2026 This event observes and visualizes sperm movement in real-time and develops it as a competition. It aims to transform the field of reproductive health into something that can be "seen" and "discussed," thereby raising social interest. *Details to be announced later.

### ② "100 People Who Chose Their Future" Project This project aims to promote preventive sperm freezing and recruits 100 monitor participants.

#### 100 People Who Chose Their Future - Initial costs - Freezing costs - One year of storage costs

These will be provided free of charge, and the participants' stories will be shared with society.

Through practitioners in diverse fields such as entrepreneurs, doctors, athletes, and engineers, this initiative will elevate the act of "preserving future options" into a social culture.

Future Outlook Our company positions reproductive health as a social infrastructure beyond the scope of medicine. By connecting it with diverse fields such as sports, entertainment, and education, we aim to create new markets and cultures.

Company Profile HDX Cell Bank Co., Ltd. Head Office: 2-28-415 Shimomiyabicho, Shinjuku-ku, Tokyo MIRAIBANK Center: Eslogi Niiza East 2, 3-3-14 Owada, Niiza-shi, Saitama Official Website: https://miraifamily.jp/ Established: July 2015 Representative: Toru Mukai, Representative Director Founder