Persons
Board of Directors

MR. WINID SILAMONGKOL
Chairman of the Board of Directors/ Chairman of the Audit Committee/Independent DirectorEducation/Training
- Master’s Degree Accountancy Thammasat University
- Bachelor of Accountancy, Thammasat University
Work Experience
- 2021-Present Chairman of the Board of Directors, Chairman of the Audit Committee and Independent Director, Alla Public Company Limited
- 2020-Present Chairman of the Audit Committee and Independent Director, Thaicom Public Company Limited
- 2020-Present ,Independent Director, Federation of Accounting Professions under the royal patronage of his majesty the king
- 2018-Present, Qualified directors in Sub-committee ,Thammasat University
- 2016-Present, Qualified directors, Accountancy, Thammasat University
- 2003-2019,Executive Director and Chief Operating Officer, KPMG Phoomchai Thailand co.th,

PROF. DR.SAHATON RATTANAPIJIT
Vice Chairman of the Board of Directors/ Member of the Audit Committee/ Member of the Nomination and Remuneration Committee/ Independent DirectorEducation/Training
- Master of Law in Commercial Law, Bristol University
- Bachelor of Law, Thammasat University
- Thai Barrister – At Law
Work Experience
- 2014-Present Vice Chairman of the Board of Directors, Member of the Audit Committee and Independent Director, Alla Public Company Limited
- 1999-Present Member of the Information Disclosure Tribunal for National Economy and Finance, the Office of the Prime Minister
- 2015-Present Professor of the Faculty of Law, Thammasat University
- 2001-2015 Associate Professor of the Faculty of Law, Thammasat University
- 1990-2001 Assistant Professor of the Faculty of Law, Thammasat University
- 1980-1990 Lecturer of the Faculty of Law, Thammasat University

MR. ONG-ARD PUNTUYAKORN
Director/ Chairman of the Executive Committee/ Chairman of the Risk Management Committee/ Member of the Nomination and Remuneration Committee/ Chief Executive OfficerEducation/Training
- Master of Business Administration (MBA), Sasin Graduate Institute of Business Administration of Chulalongkorn University
- Bachelor of Engineering, King Mongkut’s Institute of Technology Ladkrabang
- Director Accreditation Program (DAP) Class 110/2014
Work Experience
- 1992-Present Director, Chairman of the Executive Committee, Chairman of Risk Management and Chief Executive Officer, Alla Public Company Limited
- 1990-Present Director, Chief Executive Officer, Onvalla Co., Ltd.
- 1987-1990 Head of Sales Engineer, Berli Jucker Public Company Limited
- 1984-1987 Project Manager, EEC Co., Ltd.
- 1982-1984 Electrical Engineer, Park Nai Lert Co., Ltd.

MRS. VALLAYA PUNTUYAKORN
Director/ Executive Director/ Chief Administrative OfficerEducation/Training
- YWCA Secretarial School Diploma
- Director Accreditation Program (DAP) Class 110/2014
Work Experience
- 1992-Present Director, Executive Director and Chief Operating Officer, Alla Public Company Limited
- 1990-Present Director and Chief Operating Officer, Onvalla Co., Ltd
- 1993-Present Director, Alla Engineering Co., Ltd. (under liquidation progress)

MR. CHIRAWAT SRISAWADI
Director/ Member of the Audit Committee/ Chairman of the Nomination and Remuneration Committee / Independent DirectorEducation/Training
- Master of Management, Sasin Graduate Institute of Business Administration of Chulalongkorn University
- Bachelor of Business Administration in Accounting, Ramkhamhaeng University
- Director Certification Program (DCP) Class 2016
- Director Accreditation Program (DAP) Class 2015
Work Experience
- 2014-Present Member of the Audit Committee and Independent Director, Alla Public Company Limited
- 2011-Present Executive Director, AmplusChem Co., Ltd.
- 2007-Present Executive Director, Siam Chemicals Solutions Co., Ltd.
- 1999-2007 Accounting, Finance and Administration Manager, Cognis Thai Co., Ltd.
- 1995-1999 Accounting and Finance Manager, Henkel (Thailand) Co., Ltd.
- 1993-1995 Accounting and Finance Manager, Capetronic Thailand Public Company Limited
- 1985-1993 Accounting Manager, Carrier Thailand Co., Ltd.
- 1980-1985 Head of Cost Accounting, CPC Thailand Co., Ltd.

Mr. Montree Mahapruekpong
Director/ Member of the Audit Committee/ Independent DirectorEducation/Training
- Advance Management Program, 2010, Harvard Business School, U.S.A.
- Master of Business Administration, 1987, Boston University, U.S.A.
- Bachelor of Arts in Marketing, 1983, Chulalongkorn University, Thailand.
- Training Director Accreditation Program (DAP) 89/2011
Work Experience
- September 2563 – Present Secretary General The Federation of Thai Industries
- June 2563 – Present Chairman of Thailand-Latin America Business Council
- November 2561 – Present Public Private Liaison Director Siam Cement Public Company Limited
- May 2560 – Present Alternate Member APEC Business Advisory Council
- April 2560 – October 2561 Vice President SCG Vietnam Co., Ltd.
- May 2554 – March 2560 Corporate Marketing Director, SCG Packaging PLC
Managing Director, Invenique Co., Ltd.

MR. CHUMPHOL CHANCHAROEN
Director/ Executive Director/ Vice Chairman of the Risk Management Committee/ Chief Operating OfficerEducation/Training
- Master of Public Administration, National Institute of Development Administration
- Bachelor of Engineering in Mechanical, Kasetsart University
Work Experience
- 1997 – Present Executive Director, Member of the Risk Management Committee and General Manager

MISS RACHAYA RATTANASRITHONG
DirectorEducational/Training
- Bachelor of Commerce and Accountancy, Thammasat University
- Master of International Business, University of Newcastle, Australia
Work Experience
- Nov’17-present Director, Alla Public Company Limited
- 2014-present Deputy Financial Manager, Alla Public Company Limited
- 2013 International Sales Representative, Thai Flavor and Fragrance Company Limited
Committees

MR. WINID SILAMONGKOL
Chairman of the Audit Committee
MR. CHIRAWAT SRISAWADI
Audit Committee
PROF. DR. SAHATON RATTANAPIJIT
Audit Committee
MR. CHIRAWAT SRISAWADI
Chairman of Nomination and Remuneration Committee
MR. ONG-ARD PUNTUYAKORN
Member of Nomination and Remuneration Committee
PROF. DR.SAHATON RATTANAPIJIT
Member of Nomination and Remuneration Committee
MR. ONG-ARD PUNTUYAKORN
Chairman of the Executive Committee
MRS. VALLAYA PUNTUYAKORN
Executive Director
MR. PRACHA PATTHANAWITTHAYAKUL
Executive Director
MR. CHUMPOL CHANCHAROEN
Executive Director
Miss CHALUMPORN PUNTUYAKORN
Executive Director
MR. ONG-ARD PUNTUYAKORN
Chairman of Risk Management Committee
MR. CHUMPOL CHANCHAROEN
Risk Management Committee
MR. PRACHA PATTHANAWITTHAYAKUL
Risk Management Committee
MR. WAIYAKORN SEEHANERN
Risk Management Committee
Miss CHALUMPORN PUNTUYAKORN
Risk Management Committee
MRS. VALLAYA PUNTUYAKORN
Chief Administrative Officer
MR. CHUMPHOL CHANCHAROEN
Chief Operating Officer
Miss Woraratt Mekkerdchoo
Chief Financial Officer
MR. PRACHA PATTHANAWITTHAYAKUL
General Manager