Certain Common Stock of BCC Co., Ltd. are subject to a Lock-Up Agreement Ending on 3-JAN-2022. These Common Stock will be under lockup for 181 days starting from 6-JUL-2021 to 3-JAN-2022. Details: Hiroyuki Yasuhara, a shareholder, seller, director of the Company, and holding stock acquisition rights, has stated to the lead managing company 180 days after the listing date (including that date) from the date of conclusion of the principal underwriting agreement (January 1, 2022). Until then, without the prior written consent of the lead managing company, the sale of the Company's shares, etc. (however, the sale of the Company's common stock for sale by the underwriter's purchase transaction and sale by over-allotment, etc. We have agreed not to do (excluding). Hiroya Arakawa, Tamio Nishizawa, Ritoshi Mori, Masae Hayashi, Tomoaki Takeuchi, Sanae Imai,shareholders and corporate auditors Yoichi Morishige, Junhisa Tsukamoto, the shareholders and directors Okabayashi YasushiAkira to hold the stock acquisition rights, and FujiSusumu jig to hold and stock acquisition rights of the company auditors, with respect to the main secretary company, up from the original underwriting contract date field date (including the day) after 180 days Until the first time (January 1, 2022), we have agreed not to sell our shares without the prior written consent of the lead managing underwriter. Shareholders, K & P Partners No. 1 Investment Limited Partnership, Mizuho Growth Support Investment Limited Partnership, Sansei No. 6 Investment Limited Partnership, and Ikeda Senshu Capital Co., Ltd. Until the 90th day (October 3, 2021) after (including the day), without the prior written consent of the lead managing underwriter, the sale of the Company's shares, etc. (however, the sale price is the "first offer" We have agreed not to sell (excluding sales, etc. made through the lead managing underwriter), which is more than 1.5 times the issue price in the "Requirements".