Financial Results Presentation Q2

Financial Results Presentation Material 1 Mercari Group Structure Created the new Japan Region designation to accelerate synergy between businesses. Planning to further promote marketing plans, product updates, and strengthening of the security environment across the Japan Region. mercari Mercari, Inc. Established Activities Representative Representative of Mercari JP February 1, 2013 Planning, development, and operation of the Mercari marketplace app Shintaro Yamada Jeff LeBeau Established Activities Representative MERCARI Mercari, Inc. (US) January 2014 Planning, development, and operation of the US version of Mercari John Lagerling souzoh Souzoh, Inc. January 28, 2021 Planning, development, and management of internet services Yuki Ishikawa merlogi merpay mercoin Merlogi, Inc. Merpay, Inc. Mercoin, Inc. October 28, 2021 Planning, development, and management of logistics services Tomoyuki Shindo November 20, 2017 Financial-related businesses Masato Yamamoto April 28, 2021 Cryptoasset- and blockchain-related services Naoki Aoyagi mercari Japan Region Kashima Antlers F.C. Co., Ltd. October 1, 1991 Management of a soccer club Fumiaki Koizumi 5

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