Financial Results Presentation Q2

Financial Results Presentation Material 3 Mercari US―Holiday Season Marketing Initiatives/Product Updates Successfully implemented an online coupon promotional campaign during the holiday season to capture seasonal demand and acquire new users, as well as to activate existing users. Although the impact on the total GMV is still small, Mercari Local and BNPL payment service continue to drive transaction volumes of high unit price goods and contribute to new user acquisition. Holiday season campaigns Contribution to new user acquisition MERCARI Deal Day: 12 Days of Gifting Uke terms Handbags Every hout the first 100 shoppers get o 530 coupon MERCARI 12 Days of Listing $20 Here's your coupon reward." 20% 10% Implemented daily campaigns specifically for high-demand categories during the holiday season 1. BNPL (Buy Now, Pay Later): Service started in September 2021 in partnership with Zip mercari About 20% of BNPL buyers are first-time Mercari buyers About 10% of new users choose "Mercari Local only" when listing for the first time 28 28

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