Announcement of Subsidiary’s Release

TOKYO, January 31, 2022 – Coincheck, Inc., a subsidiary of Monex Group, Inc., issued the followingpress release today.

Attachment: Summary of Coincheck, Inc. press release
Coincheck and The Sandbox to Start Developing a Metaverse Near-Future City
- Building Year 2035 “Oasis TOKYO” on LAND owned by Coincheck To be announced to the publicin the spring of 2022 -[Press Release]
January 31, 2022
Coincheck, Inc.

Coincheck and The Sandbox
to Start Developing a Metaverse Near-Future City
- Building Year 2035 “Oasis TOKYO” on LAND owned by Coincheck to be announced to thepublic in the spring of 2022 Coincheck, Inc. (Head office: Shibuya-ku, Tokyo, President: Satoshi Hasuo, hereinafter referred to as"Coincheck") and The Sandbox, a company which promotes the use of gaming metaverse, are pleased toannounce that they started a project to build “Oasis TOKYO,” a year 2035 near-future city, on “The Sandbox”“LAND” owned by Coincheck. The project is designed in such a way to offer opportunities for users toexperience activities in a metaverse and to augment activities in The Sandbox communities. The new city,“Oasis TOKYO,” will be publicly available in the spring of 2022.
“Oasis TOKYO” is a community platform of a metaverse and a Non-Fungible Token (NFT), showcasing theconcept of a year 2035 near-future city. Art museums, stages and other facilities are located in a symbolicstreetscape which evokes the image of Japan. The city is designed to offer a forum for artists from different
fields and their fans to connect while companies are encouraged to develop their own communities.
Coincheck and The Sandbox formed a partnership in September 2020 for promoting brand awareness of TheSandbox in the Japanese market and started sales of LAND on an NFT marketplace called Coincheck NFT(β version). Metaverse and Web 3.0 are said to change the form of communities from those that are built inand on social media to something new, driven by growing momentum in the second half of 2022. Throughthis project, Coincheck and The Sandbox are committed to being at the forefront of this momentum andoffering virtual world experiences in the near future.
About The Sandbox
The Sandbox offers a user-driven game-making platform within a virtual world, a metaverse, allowing users
to develop games and create voxel art avatars and buildings as well as other items.
More than 40 million games have been downloaded globally as part of The Sandbox series. The Sandbox
Alpha was launched at the end of November 2021, ahead of the official launch of the Sandbox PC version.
With the Alpha version, certain qualified owners of LAND have opportunities to access content on The
Sandbox metaverse.

Official Website of The Sandbox: https://www.sandbox.game/jp/
How to Play with The Sandbox: https://coincheck.com/ja/article/457

Comments of Sebastien Borget, COO of The Sandbox
The Sandbox positions Japan as a very important market and has been strengthening its operations since early2020. Since forming a strong partnership with Coincheck in 2020, both companies have worked closely
together selling LAND through Coincheck NFT beta version, which is necessary to launch games on TheSandbox. With growing interests in metaverses globally, we are extremely excited about the opportunities tooffer actual metaverse experiences to our users. We would like many users to come to love The Sandbox asthey experience the joy of sharing the metaverse with their friends in Oasis TOKYO

Kensuke Amo, Executive Director of Coincheck
In March 2021, Coincheck started offering Coincheck NFT (β version), an NFT marketplace which
incorporates cryptocurrency transaction services. As we expand our partnership it is our pleasure to kick off
this new project with The Sandbox, one of the first titles we offered. Given that NFTs have a good affinity
with metaverses and The Sandbox has already incorporated NFTs and blockchain in its platform, we believe
the metaverse will grow into one of the leading virtual worlds globally. We are committed to helping artists
and companies connect with their fans and build communities in the metaverse. I am personally excited about
the development of this project. I have no doubt that users will enjoy this joint project of Coincheck and The
Sandbox