Feb 1977 Entered Shanghai Wireless Electric No. 11 Factory Technical School (Teacher) Feb 1982 Joined Shanghai Computer Technology Service Company Apr 1989 Joined Baitoru Hikuma Co., Ltd. Jan 1997 Founded the Company; Representative Director, President (current) Oct 2008 Chairman, BASE (Wuxi) Information System Co., Ltd. (current) Jul 2011 Representative Director, President & CEO, bbc Inc. (now BASE, Inc.) Mar 2013 Chairman of the Board, bbc Inc. Jan 2017 Representative Director, Chairman, Gotouso Soft Co., Ltd. (now BASE, Inc.)

Apr 1994 Joined Hoechst Japan Ltd. (now Sanofi K.K.) Jan 2000 Joined Yamada & Partners Accounting Firm (now Yamada & Partners Certified Public Tax Accountants' Corporation) Nov 2002 Registered as Certified Tax Accountant Aug 2003 Joined NTT Data Science Corporation (now NTT DATA Global Solutions Corporation) Jan 2005 Joined Netprice Inc. (now BEENOS Inc.) Feb 2007 Joined the Company, Administration Division, Finance Manager Jan 2008 General Manager, Finance Department Oct 2008 Auditor, BASE (Wuxi) Information System Co., Ltd. (current) Mar 2009 Executive Officer, General Manager, Finance Department Mar 2010 Director, General Manager, Finance Department Jul 2011 Director & COO, bbc Inc. (now BASE, Inc.) Jan 2012 Director, General Manager of Administration Division, Finance Department and General Affairs Department Mar 2013 Senior Managing Director, General Manager of Administration Division, Finance Department and General Affairs Department Mar 2013 Director, bbc Inc. Jan 2017 Senior Managing Director, Executive Officer, General Manager of Administration Division and Finance Department Jan 2017 Auditor, Gotouso Soft Co., Ltd. (now BASE, Inc.) Jan 2018 Senior Managing Director, General Manager of Administration Division, Finance Department and Listing Preparation Office Feb 2019 Senior Managing Director, General Manager of Administration Division and Finance Department (current)

Mar 1980 Registered as Certified Public Accountant Jun 1980 Registered as Certified Tax Accountant Dec 1980 Founded OBIC Business Consultants Co., Ltd.; Representative Director, President (current) Nov 2007 Director of the Company (current)

Apr 1997 Joined SoftBank Corp. May 1999 Transferred to E*TRADE Securities Co., Ltd. (now SBI Securities Co., Ltd.) Jul 2014 General Manager, Corporate Division, SBI Securities Co., Ltd. Feb 2015 Representative Director, Ueru Co., Ltd. (current) Nov 2015 Auditor, C Channel Inc. (current) May 2016 Director, Haronet Inc. (now SFIDA X Inc.) (current) Aug 2016 Representative Director, Payment Technology Inc. (current) Apr 2019 Auditor, Raful Inc. (current) Mar 2020 Director of the Company (current) Jan 2023 Director, Forsis & Company Inc. (current)

Apr 1980 Joined Fujitsu Limited May 2011 General Manager, Insurance Policy Solutions Business Unit, Fujitsu Limited Jun 2012 General Manager, Financial Systems Business Unit, Fujitsu Limited May 2013 Executive Officer, General Manager, Financial Systems Business Unit, Integration Services Division, Fujitsu Limited Apr 2016 Executive Officer, Managing Director, Deputy Head, Global Service Integration Division, Fujitsu Limited Jun 2019 Executive Officer, Senior Managing Director, Deputy Head, Technology Solutions Division, Fujitsu Limited Mar 2021 Retired from Fujitsu Limited Mar 2022 Director, Audit and Supervisory Committee Member of the Company (current) Jun 2025 Director, Creo Inc. (current)

Aug 1995 Joined Tateno Management Accounting Office Mar 1996 Joined Yamada & Partners Accounting Firm (now Yamada & Partners Certified Public Tax Accountants' Corporation) Jun 1998 Registered as Certified Public Accountant Jul 2000 Transferred to Yusei Audit Corporation (now Taiyo LLC) Sep 2002 Partner, Yusei Audit Corporation Dec 2004 Opened Kurihara CPA Office; Representative (current) Apr 2015 Auditor, Value Golf Inc. (current) Aug 2019 Director, Audit and Supervisory Committee Member of the Company (current) Mar 2022 Auditor, Intermestic Inc. (current)

Oct 2000 Registered as Attorney-at-law (Tokyo Bar Association) Oct 2000 Joined Mori Sogo Law Office (now Mori Hamada & Matsumoto) Jan 2007 Seconded to the Judicial System Reform Promotion Office, Cabinet Secretariat Sep 2009 Joined Uryu & Itoga Law Office LPC Jan 2010 Partner, Uryu & Itoga Law Office LPC (current) Mar 2022 Director, Audit and Supervisory Committee Member of the Company (current) Jun 2022 Director, Golf Do Inc. (current) May 2025 Director, Asahi Concrete Works Co., Ltd. (current)