Base Co., Ltd. to Speak at "Individual Investor Summit" IR Seminar for Individual Investors

Base Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo; Representative Director and President: Katsunari Nakayama) will speak at the "Individual Investor Summit," an IR seminar for individual investors organized by IR Robotics Inc., starting at 11:10 on Saturday, May 30, 2026.

During this seminar, Senior Executive Officer Aoyagi is scheduled to explain the company's business overview, growth strategy, and future prospects. We hope you will join us for this valuable opportunity to interact directly with individual investors.

This seminar can be attended in person or viewed online. We look forward to the participation and viewership of many investors and shareholders. Please check the official website below for details.

【Event Details】 Date and Time: Saturday, May 30, 2026, 10:30 - 18:30 (Entry and exit permitted during the event) *Our presentation is scheduled from 11:10 to 11:50. Participation Fee: Free Format: In-person participation (Akasaka Garden City) and online participation *Hybrid format, pre-registration required Organizer: IR Robotics Inc. (https://ir-robotics.co.jp/)

【Official Event Page】 https://www.irtv-kojintoushika-event.com/2026-5

【Participation Application Form】 Common for in-person and online participation https://go.ir-robotics.co.jp/l/942323/2026-02-13/3grhwd?

【Company Overview】

Company Name: Base Co., Ltd. Representative: Katsunari Nakayama, Representative Director and President

Listing: Tokyo Stock Exchange Prime Market (Securities Code: 4481) Location: 4-14-1 Sotokanda, Chiyoda-ku, Tokyo 101-0021 Established: January 1997 Capital: 1.122 billion JPY Business: Computer software development and related operations

Homepage: https://www.basenet.co.jp/

【Inquiries regarding this matter】

Base Co., Ltd. IR Department

E-Mail: [email protected]