Certain Common Stock of Japan Data Science Consortium Co.Ltd. are subject to a Lock-Up Agreement Ending on 19-MAR-2022. These Common Stock will be under lockup for 89 days starting from 20-DEC-2021 to 19-MAR-2022.

Details:
Satoshi Kato, the seller, and Kotael Trust Co., Ltd. (trust opening), Takaharu Fuchi, Keisuke Hashimoto, Shinpei Osugi, Tohan Co., Ltd., Deep30 Investment Business Limited Liability Union, Koichi Kibata, School Corporation Surugadai Gakuen, Noboru Koshizuka, Kotael Trust Co., Ltd., SHT Co., Ltd. During the period from the date to the 180th day (June 17, 2022) after the listing date (including the day) (hereinafter referred to as the "lockup period"), without the prior written consent of the co-lead managing underwriter.

In addition, the seller, UTEC 4 L.P., will contact the joint lead managing underwriter for the period from the date of conclusion of the principal underwriting contract to the 90th day (including the day) after the listing date (March 19, 2022) without the prior written consent of the co-lead managing underwriter.