Supplementary Document of the Company’s Initiatives to Enhance Corporate Value and the Shareholder Proposal-For the Ordinary General Shareholders Meeting (May 28, 2026) -

Notice Regarding the Content of the Website Created by Company Shareholder Oasis Management Company Ltd.

Notice Regarding a Candidate for Member of the Board and Changes in Chief Officer and Corporate Officer Positions

KADOKAWA and note Announce Capital and Business Alliance — Toward Developing a Next-Generation IP Operation Ecosystem to Empower Creators’ Creative Activities —

KADOKAWA Announces Launch of Animation Production Hub “Studio One Base” Set to Open in Ikebukuro, Tokyo, in Autumn 2026. KADOKAWA, Toshima City, and Sunshine City to Strengthen Their Partnership to Develop Ikebukuro into a “World-Class Anime City”!

KADOKAWA and Aniplex Announce Formation of Joint Venture “Animec” Specializing in Anime Film Distribution and Promotion

A Public-Private Partnership between Shinjuku City, Takinogawa Gakuen, and KADOKAWA CRAFT: Opening of “Sekaiju Cafe & Gallery”

Notice Regarding the Expected Recognition of Donations for the Establishment of a School Corporation — Generating Revenue by Assisting Operations, Creating Synergy, and Enhancing the Value of the Education/Edtech Business —

Notice Regarding Change in Duties of Corporate Officers

KADOKAWA Acquires SOZO, Organizer of One of Southeast Asia's Largest Anime Events and Promoter of Top J-POP Artists' Overseas Concerts

Notice Regarding Change in Duties of Chief Officer

Victory Against Cloudflare, Inc. – The Tokyo District Court Judgment Found Copyright Infringement and Ordered Substantial Damages

“ELDEN RING NIGHTREIGN” DLC: “The Forsaken Hollows” Release date: 4th December, 2025 (Thu) Latest Trailer Goes Live〈FromSoftware〉

Notice Regarding Appointment of Chief Officer and Change of Duties of Corporate Officer

Bandai Namco Entertainment & FromSoftware collaboration “ELDEN RING NIGHTREIGN” ships 5 million units worldwide! “ELDEN RING” DLC “SHADOW OF THE ERDTREE” breaks 10 million!〈FromSoftware〉

Bandai Namco Entertainment & FromSoftware collaboration “ELDEN RING NIGHTREIGN” ships 2 million units worldwide on day of release!〈FromSoftware〉

KADOKAWA Announces Acquisition of Italian Manga Publisher, Edizioni BD S.r.l.

Notice Regarding Appointment of Member of the Board Candidates

Nintendo Switch 2 “The Duskbloods” Releasing in 2026〈FromSoftware〉

“ELDEN RING Tarnished Edition” releasing for the Nintendo Switch 2 In 2025 –Version includes the full game + SHADOW OF THE ERDTREE DLC + new additional content〈FromSoftware〉