Mr. Borwornsak Wanich
Independent Director
Chairman of the Audit Committee
Member of Human Resources and Remuneration Committee
Mr. Jiraroj Lanchanavanich
Independent Director
Chairman of the Risk Management Committee
Member of the Audit Committee
Chayanan Pakdeejit, Ph.D.
Independent Director
Member of the Audit Committee
Member of the Corporate Governance and Sustainability Committee

The Committee reports directly to the Board of Directors and shall perform its tasks and responsibilities as assigned by the Board of Directors and in compliance with the SEC's and the SET's regulations as follows:

  1. To review the Company’s financial reports to ensure that they are accurate and adequate;
  2. To review the Company’s internal control system and internal audit system to ensure that they are suitable and efficient;
  3. To review the Company’s compliance with the law on securities and exchange, the Stock Exchange of Thailand’s rules and regulations, and other laws relating to the Company’s business;
  4. To consider, select and nominate an independent person to be the Company’s auditor, and to propose such person’s remuneration, as well as to attend a non-management meeting with an auditor at least once a year;
  5. To review the Connected Transactions, or the transactions that may lead to conflicts of interests, to ensure that they are in compliance with the laws and the Stock Exchange of Thailand’s regulations;
  6. To prepare, and to disclose in the Company’s annual report, an Audit Committee’s report, which must be signed by the Audit Committee’s Chairman and consist of at least the following information:
    • an opinion on the accuracy, completeness and creditability of the Company’s financial reports;
    • an opinion on the adequacy of the Company’s internal control system;
    • an opinion on the compliance with the law on securities and exchange, the Stock Exchange of Thailand’s regulations, or the laws relating to the Company’s business;
    • an opinion on the suitability of an auditor;
    • an opinion on the transactions that may lead to conflicts of interests
  7. To review the Internal’s Audit Division’s works in the following areas:
    • approve the scope of work, annual audit plan, budget and personnel recruitment to ensure it is sufficient to support the Committees’ duties and responsibilities;
    • review the appointment, reshuffle or termination of the Internal Audit Division Director;
    • review the internal audit reports;
    • scrutinize the status of independence of the Internal Audit Division
  8. Consider and review audit criteria and process to ensure that they regularly comply with current business environment
  9. Summarize and report the Audit’s Committee’s tasks and movement to the Board of Directors
  10. Reporting the findings or suspicious transactions or any of the following acts which may materially affect the Company’s financial condition and operating results, to the Board of Directors for rectification within the period of time that the Audit Committee thinks fit:
    • a transaction which causes a conflict of interest;
    • any fraud, irregularity, or material defect in an internal control system; or
    • an infringement of the law on securities and exchange, the Stock Exchange of Thailand’s regulations, or any law relating to the Company’s business.

      If the Company’s Board of Directors or Management fails to make a rectification within the period of time under the first paragraph, any Audit Committee member may report on the transaction or act under the first paragraph to the Office of the Securities and Exchange Commission or the Stock Exchange of Thailand.
  11. Implement the tasks stated above for subsidiaries as assigned or requested by subsidiaries within the Audit Committee’s scope of work
  12. Other tasks actions assigned by the Board of Directors which is approved by the Audit Committee

The Audit Committee has authority to take following actions: inviting directors, employees, staff to attend the meeting to clarify and answer any question relating to the Committee’s duties and responsibilities; discussing with the Company’s expert or consultant (if any) or hiring a third-party consultant or specialist if necessary at the Company’s expenses; requesting the Company’s employees to submit necessary documents about the Company’s operations for auditing or investigation for work accomplishment; assigning any employee or staff to take particular action to support auditing activities; and taking action specified above in relations to subsidiaries as assigned or requested by subsidiaries and within scope of their authority and duties.


Role and Responsibilities of the Audit Committee

The Audit Committee of the Company consists of Independent Directors appointed by the Board of Directors based on their expertise, experiences and qualifications, as defined by the regulation of the Securities and Exchange Commission (SEC) and the Stock Exchange of Thailand (SET). The Committee members stay in office for three years. Ms. Kamolkarn Hinviman, Senior Vice President, Internal Audit Division (Head of Internal Audit), acts as the Committee’s secretary.

Mr. Borwornsak Wanich
Mr. Borwornsak Wanich
Independent Director
Chairman of the Audit Committee
Member of Human Resources and Remuneration Committee
Age

65 years

The Company’s Securities Holding Proportion (%)
  • Direct: None
  • Indirect: None
Starting Date of Directorship

23 April 2024

Education
  • Graduate Diploma in Public Law, Thammasat University
  • Bachelor of Laws, Thammasat University
Important Trainings/Seminars
  • Arranged by Thai Institute of Directors Association
    • Successful Formulation & Execution of Strategy (SFE 47/2025)
    • Director Accreditation Program (DAP 220/2024)
  • Arranged by Other Institutions
    • Advanced Strategic Management for Anti-Corruption Course, Class 10 (2019), Office of The National Anti-Corruption Commission
    • Senior Governing Executive Training Program Class 65 (2015), Prince Damrong Rajanubhab Institute, Ministry of Interior
    • Provincial Chief Public Prosecutor Course, Class 29 (2010), Office of the Attorney General
    • Training Program on Administrative Law and Administrative Court Procedure Accredited by Judicial Commission of the Administrative Court, Class 1 (2010), The Administrative Court of Thailand
Work Experiences in the Previous 5 Years (Year 2021 - 2026) and/or Important Positions
2025 - 2026 : Member of the Audit Committee, RATCH Group Public Company Limited/1
2017 - 2020 : Vice Governor of Kanchanaburi Province, Office of the Permanent Secretary Ministry of Interior
Current Positions
Other Listed Companies
None
Non-listed Organizations
None

Notes : /1 Effective from 24 April 2025 - 23 April 2026.

Mr. Jiraroj Lanchanavanich
Mr. Jiraroj Lanchanavanich
Independent Director
Chairman of the Risk Management Committee
Member of the Audit Committee
Age

55 years

The Company’s Securities Holding Proportion (%)
  • Direct: None
  • Indirect: None
Starting Date of Directorship

24 April 2025

Education
  • Master of Science in Information Systems (MSIS), STRAYER University, USA
  • Master of Science in Business Administration (MSBA), STRAYER University, USA
  • Bachelor of Business Administration (BBA) Majoring in Marketing, Assumption University
Important Trainings/Seminars
  • Arranged by Thai Institute of Directors Association
    • Risk Management Program for Corporate Leaders (RCL 42/2026)
    • Advanced Audit Committee Program (AACP 58/2025)
    • Hot Issue for Director Topic: The Evolving Role of Audit Committee in Fostering Trust and Transparency (2/2025)
    • Director Certification Program (DCP 384/2025)
  • Arranged by Other Institutions
    • WorldSpan LAN System Intermediate Training Course, Northwest Airlines Company and Trans World Airlines, USA
    • 3P Software Training Program for Personal Evaluation System, One of William M. Mercer
    • Salsa 3.3, 3.4 Training Program for Producing the Survey Report System, One of William M. Mercer
    • Tesco Lotus Retail Academy, SASIN Graduate Institute of Business Administration, Chulalongkorn University
    • Personal Care Ingredients Asia Workshops - Marketing, Personal Care Ingredients Asia
    • Pocket MBA in Marketing, BrandAge
    • Advance Retail & Business Management, Class 25, ARM Academy
Work Experiences in the Previous 5 Years (Year 2021 - 2025) and/or Important Positions
2025 : Member of the Corporate Governance and Sustainability Committee, RATCH Group Public Company Limited /1
2020 - 2021 : Advisor to the Committee on Cosmetic Legislation, House of Representatives
1999 - 2001 : Assistant to Information Technology Director (Asia), Mercer (Thailand) Co., Ltd.
1998 : Information Technology Manager, William M. Mercer (Thailand) Co., Ltd.
1995 - 1998 : Assistant to Managing Director, Starlite Travel, Inc., USA
Current Positions
Other Listed Companies
None
Non-listed Organizations
2024 - Present : CEO, Garguar Lab Co., Ltd.
2015 - Present : Advisor to Directors, Round Two Solutions
2001 - Present : Group CEO, Standard Manufacturing Co., Ltd.

Notes : /1 Effective from 1 October 2025 - 17 November 2025.

Chayanan Pakdeejit, Ph.D.
Chayanan Pakdeejit, Ph.D.
Independent Director
Member of the Audit Committee
Member of the Corporate Governance and Sustainability Committee
Age

49 years

The Company’s Securities Holding Proportion (%)
  • Direct: None
  • Indirect: None
Starting Date of Directorship

27 February 2024

Education
  • Juris Scientiae Doctoris (Environmental Law), Washington University in St. Louis, Missouri, USA
  • Master of Laws (International Environmental Law), Indiana University Bloomington, Indiana, USA
  • Master of Laws (International & Comparative Law), University of Pittsburgh, Pennsylvania, USA
  • Bachelor of Law (2nd Class Honours), Chulalongkorn University
Important Trainings/Seminars
  • Arranged by Thai Institute of Directors Association
    • Director Accreditation Program (DAP 219/2024)
  • Arranged by Other Institutions
    • The Rule of Law for Democracy, Class 12 (2024), Office of the Constitutional Court
    • Executive Program in Energy Literacy for a Sustainable Future, Class 18 (2023), Thailand Energy Academy
    • Senior Executive Program, Class 9 (2022), Budget Bureau
    • Environmental Governance for Executive officer (EnGEO 8) (2021), Ministry of Natural Resources and Environment
    • Top Executive Program in Commerce and Trade (TEPCoT), (2020 - 2021), University of the Thai Chamber of Commerce
    • Civil Service Executive Development Programme, Ministry of Natural Resources and Environment, Class 1 (2020)
    • Senior Governing Executive Training Program Class 70 (2018), Prince Damrong Rajanubhab Institute, Ministry of Interior
    • Justice Executive Training Course, Class 8 (2016 - 2017), Office of Justice Affairs, Ministry of Justice
    • Security Psychology Course, Class 116 (2015 - 2016), Institute of Security Psychology, National Defence Studies Institute
    • Environmental Law and Policy (2009), United Nations Environment Programme
    • Application for Public Law Training Program, Class 26 (2008), Office of the Council of State and The Administrative Court
Work Experiences in the Previous 5 Years (Year 2021 - 2025) and/or Important Positions
2025 : Permanent Secretary Ministry of Natural Resources and Environment /1
: Chairman of the Risk Management Committee, RATCH Group Public Company Limited /2
: Chairman of the Corporate Governance and Sustainability Committee, RATCH Group Public Company Limited /3
2024 - 2025 : Secretary General Office of Natural Resources and Environmental Policy and Planning /4
2024 - 2025 : Member of the Audit Committee, RATCH Group Public Company Limited /5
2023 - 2024 : Deputy Permanent Secretary, Office of the Permanent Secretary Ministry of Natural Resources and Environment
2021 - 2023 : Assistant Permanent Secretary, Office of the Permanent Secretary Ministry of Natural Resources and Environment
2020 - 2021 : Director of General Affairs Division, Office of the Permanent Secretary Ministry of Natural Resources and Environment
2017 - 2020 : Director of Aviation Division, Office of the Permanent Secretary Ministry of Natural Resources and Environment
2016 - 2017 : Legal Advisor, Expert Level, Office of the Permanent Secretary Ministry of Natural Resources and Environment
Current Positions
Other Listed Companies
None
Non-listed Organizations
2025 - Present : Director, Office of the National Land Policy Board /6

Notes : /1          Effective from 21 August 2025 - 4 December 2025.
                            /2          Effective from 24 June 2025 - 17 November 2025.
                            /3          Effective from 24 April 2025 - 23 June 2025.
                            /4          Effective from 28 December 2024 - 20 August 2025.
                            /5          Effective from 22 March 2024 - 23 April 2025.
                            /6          Effective from 5 December 2025 onwards.