MIRRATIV, a Portfolio Company of Global Brain, Lists on the Tokyo Stock Exchange Growth Market

We hereby announce that MIRRATIV Inc. (hereinafter "MIRRATIV"), a company operating a live streaming platform business and streamer platform business, in which Global Brain No.6 Investment Limited Partnership, Global Brain No.7 Investment Limited Partnership, and KDDI New Business Development No.3 Investment Limited Partnership, all operated by Global Brain Co., Ltd. (hereinafter "Global Brain"), have invested, has newly listed on the Tokyo Stock Exchange Growth Market on December 18, 2025.

Under the mission of "Connecting the desire to understand each other," MIRRATIV has achieved remarkable growth by creating new community and gaming experiences through 'Mirrativ,' one of Japan's largest mobile game streaming apps. Furthermore, under the banner of "All for Streamers" as a new business initiative, it is challenging itself for further growth by providing services such as 'CastCraft,' a streaming support tool for VTubers and streamers developed through strategic investments and M&A; 'Buicyas,' a service supporting PR project offers and collaborative product development; and the music live event 'Rock on V.' Global Brain will continue to support the dramatic growth of its portfolio startups through multifaceted management support, IPO assistance, and more.