Certain Common Stock of Science-Arts, Inc. are subject to a Lock-Up Agreement Ending on 22-MAY-2022. These Common Stock will be under lockup for 179 days starting from 24-NOV-2021 to 22-MAY-2022. Details: In connection with this offer and the sale by accepting the purchase transaction of the underwriter , Shuichi Hiraoka , the seller and the lender, and Shuichi Hiraoka Office, a joint venture company that is a shareholder of the Company, SB Technology Co., Ltd., au Cubcom Securities Co., Ltd., Co., Ltd. Broadband Tower, Okaji Securities Co., Ltd., Japan ATM Co., Ltd., Planet Co., Ltd., Guru Navi Co., Ltd. and Alpha Step Co., Ltd. will be listed from the date of signing the principal underwriting contract to the main managing company. During the period until February 21, 2022, which is the 90th day after that, without the prior written consent of the lead managing company, the sale of the Company's shares, etc. In addition, the Company will inform the lead managing underwriter in advance of the lead managing underwriter during the period from the conclusion of the principal underwriting contract to May 22, 2022, which is the 180th day after the listing date. Issuance of shares of the Company, issuance of securities converted or exchanged for the shares of the Company, or issuance of securities granted the right to acquire or receive the shares of the Company, etc.