Position: Director (Director has resigned from May 9, 2023 onwards.)
Age: 52 years
Nationality: Swiss
• MBA, Finance, Fribourg University, Switzerland
• Swiss Certified Accountant, Expert Suisse, Zurich, Switzerland
• Advanced Management Program, Harvard Business School, Cambridge, USA
• Certificate: Thai Institute of Directors Association
    Director Accreditation Program (DAP), Class 166/2019
• The Stock Exchange of Thailand
    E-Learning CFO’s Orientation Program, 2019
    E-Learning CFO’s Refresh Course, 2021
• Certificate: Managing Safely, IOSH, 2016
• Certificate: Holcim Future Leadership Course
    Institute of Management Development (IMD), Lausanne, Switzerland, 2015
• Certificate: Learn Management, LEAN Institute, Brazil, 2014
• Certified Public Accountant Examination, State Accountancy Board, Wilmington, USA, 2014
Date of Appointment: March 2, 2021
Period of Directorship: Holding Director Position since 2021 until present for a total of 1 year 10 months
Shareholding in the Company as at December 31, 2022: None
Direct and indirect interest in any of business with Company and its subsidiaries: None
Family Relationship with Executives: None

Number of Director Positions in other Business
• Listed Company – 1 Company
    2019-Present: Member of Group Executive Committee – Group Chief Financial Officer (Group CFO), Siam City Cement Public Co., Ltd. / Cement Producer and Construction Materials
• Non-Listed Company – 3 Companies
    (1) 2019-Present: Chairman, Insee Digital Co., Ltd. / Digital Technology and information Technology Services
    (2) 2019-Present: Director, Siam City Cement (Vietnam) Limited (Registered in Vietnam) / Cement Producer
    (3) 2019-Present: Director, Siam City Cement (Bangladesh) Limited (Registered in Bangladesh) / Cement Producer

Past 5-Year Work Experience:
2019-Nov. 2022: Commissioner, PT Conwood Indonesia Co., Ltd. (Registered in Indonesia)
2019-Nov. 2022: Director, Conwood Co., Ltd.
2019-Feb. 2021: Director, Siam City Cement (Lanka) Limited (Registered in Sri Lanka)
2015-2019: Chief Financial Officer, Holcim Indonesia (Registered in Indonesia)
2014-2015: Chief Financial Officer, Holcim Brazil (Registered in Brazil)
2010-2014: Head Corporate Holding, Holcim Group Services Limited (Switzerland) (Registered in Switzerland)