• Bachelor Degree in Accounting, Faculty of Commerce and Accounting, Thammasat University
• Certificate of Management Program, United Kingdom in 1985
• Certificate of Strategic Planning & Implementation, University of Michigan Business School, Singapore in 2000
• Diploma in National Defence for The Joint State-Private Sector Course (Class 21), National Defence College of Thailand in 2008 – 2009
• Leadership Program (Class 11), Capital Market Academy (CMA) in 2010 – 2011
• The Programme for Senior Executives on Justice Administration Batch 15, National Justice Academy, Office of Judiciary in 2011 – 2012
• The 5^th Training Course on Administrative Justice for Executives, Institute of Administrative Justice, The Office of the Administrative Courts of Thailand in 2013 – Aug. 2014
• Top Executive Program in Energy Literacy for a Sustainable Future (Class 6), Thailand Energy Academy (TEA) in 2015
• Top Executive Program in Industrial Development and Investment (Class 2), Institute of Business and Industrial Development (IBID) in 2015
• Academy of Business Creativity (ABC) (Class 6), Sripatum University in 2017
• CMA – GMS International Program Class 2017, Third Batch Jul – Aug 2017, Capital Market Academy
• Investment Training Course, Ultra Wealth Group (Class 4), Capital Market Academy in Jan – May 2018
• Top Executive Program in Commerce and Trade (TepCot) (Class 11), Commerce Academy, University of the Thai Chamber of Commerce (UTCC) in Mar – Sep 2018
• Advanced Master of Management Program (AMM) (Class 2), National Institute of Development Administration (NIDA) in Aug – Dec 2018
• Top Executive Program for Creative & Amazing Thai Service (Class 1),The Thai Chamber of Commerce University in 2019
• The Story (The Ultimate Leadership Tool) (Class 4), Sripatum University in 2020
• Digital Edge Fusion (DEF#5), Sripatum University in 2020
• Roles, duties of directors and executives of listed companies by the SEC in 2023

Training courses from Thai Institute of Directors Association (IOD) :

• Director Accreditation Program (DAP) in 2004

12.62%

127,005,535 shares

as of December 31, 2024

Mrs.Siripen’s son and Mr.Charoenrath’s younger brother and Mr.Thananan’s elder brother

1993 – Present	Director / Executive Director	Samart Corporation Pcl.
2004 – Present	Risk Management Committee Member	Samart Corporation Pcl.
2013 – Present	Chairman of the Sustainable Development Committee	Samart Corporation Pcl.
2021 – Present	Executive Vice Chairman – Corporate Strategy & New Business Development	Samart Corporation Pcl.
2016 – Present	Executive Chairman / Chief Executive Officer of Digital Communications LOB (Formally known as “Digital LOB”)	Samart Corporation Pcl.
2000 – 2021	President	Samart Corporation Pcl.
2014 – 2020	Acting Chief Operating Officer of Call Center LOB	Samart Corporation Pcl.
2003 – Present	Director	Samart Digital Pcl.
2016 – Present	CEO / Executive Chairman / Chairman of the Risk Management Committee	Samart Digital Pcl.
1996 – Present	Director	Samart Telcoms Pcl.
2000 – Present	Executive Chairman / Chief Executive Officer	Samart Telcoms Pcl.
2016 – Present	Chairman of the Risk Management Committee	Samart Telcoms Pcl.
2017 – Present	Director	Samart Aviation Solutions Pcl.
2019 – Present	Executive Director / Risk Management Committee Member / Sustainable Development Management Committee	Samart Aviation Solutions Pcl.
2013 – 2021	Director / Chairman of the Risk Management Committee	One To One Contacts Pcl. (Formally known as “Peer For You Pcl.”)
2016 – 2021	Executive Director	One To One Contacts Pcl. (Formally known as “Peer For You Pcl.”)
Present	Director	Vilailuck International Holding Co., Ltd. and its subsidiaries.
Present	Director	Subsidiaries and Related Companies (as details in Directors and Managements in subsidiaries and related companies).