Name	Mr. Sutee Simakulthorn *
Age	54
Nationality	Thai
Position	Chairman of the board of directors/Acting President
Date of appointment as director	25 April 2018
Number of ordinary share held in the company	32,124,655 shares
Number of ordinary share held in the company	2.14164 %
Educational background	- Master Degree in Science in Management, Purdue University, U.S.A. - Bachelor Degree in Engineering, Chulalongkorn University
IOD training	Director Certification Program (DCP) / 2003
Position in the company	None
Positions held in other listed companies	None
Other position, present	Chairman/Managing Director - Kulthorn Premier Co., Ltd. Chairman - Kulthorn Kirby Foundry Co., Ltd. - Kulthorn Steel Co., Ltd. - Kulthorn Materials and Controls Co., Ltd. - Kulthorn Metal Products Co., Ltd. - Kulthorn Research and Development Co., Ltd. Director - Suzhon Kulthorn Magnet Wire Co., Ltd.
Work experience	1998 - Present To work in Kulthorn Kirby Public Company Limited 2003 - 10 April 2018 Director, Kulthorn Kirby Public Company Limited

Name	Mr. Titisak Simakulthorn *
Age	45
Nationality	Thai
Position	Director
Date of appointment as director	28 April 2010
Number of ordinary share held in the company	7,251,125 shares
Number of ordinary share held in the company	0.48341 %
Educational background	Bachelor Degree in Electrical and Electronic Engineering Queen Mary College: University of London
IOD training	Director Certification Program (DCP) / 2016
Position in the company	None
Positions held in other listed companies	None
Other position, present	Managing Director - Kulthorn Steel Co., Ltd. - Kulthorn Metal Products Co., Ltd. - Kulthorn Research and Development Co., Ltd. Director - Kulthorn Premier Co., Ltd. - Kulthorn Kirby Foundry Co., Ltd. - Kulthorn Materials and Controls Co., Ltd. - Suzhou Kulthorn Magnet Wire Co., Ltd. - Kulthorn Electric Co., Ltd. - Thai Compressor Manufacturing Co., Ltd.
Work experience	2003 - Present To work in Kulthorn Kirby Public Company Limited 2000 - 2002 Heatcraft Australia Pty, Ltd.

Name	Mr Sutas Simakulthorn
Age	50
Nationality	Thai
Position	Director
Date of appointment as director	12 May 2021
Number of ordinary share held in the company	42,295,530 shares
Number of ordinary share held in the company	2.81970 %
Educational background	– Master of Business Administration (MBA), University of Southern California, USA. – Bachelor Degree in Engineering, Chulalongkorn University
IOD training	None
Position in the company	None
Positions held in other listed companies	None
Other position, present	Director – Kulthorn Premier Co., Ltd. – Kulthorn Steel Co., Ltd. – Kulthorn Materials and Controls Co., Ltd. – Kulthorn Metal Products Co., Ltd. – Kulthorn Research and Development Co., Ltd. – Thai Compressor Manufacturing Co., Ltd Managing Director – Kulthorn Co., Ltd. – Kulthorn Electric Co., Ltd
Work experience	2009 Present Managing Director – Kulthorn Co., Ltd. 2003- 2009 Executive Vice President – Thai Compressor Manufacturing Co., Ltd. 2002-2003 Vice President – Kulthorn Co., Ltd. 1997-2000 Engineering – Mitsubishi Heavy Industries, Japan 2997 Engineering – Thai Compressor Manufacturing Co., Ltd.

Name	Mrs. Supanee Chantasasawat*
Age	55
Nationality	Thai
Position	Director
Date of appointment as director	10 July 2024
Number of ordinary share held in the company	7,251,122
Number of ordinary share held in the company	0.48341 %
Educational background	– SASIN Graduate Institute of Business Administration Chulalongkorn University, MBA (Marketing) – Chalalongkorn University, Bachelor of Accountancy
IOD training	2012 - 2013 Specialist Bar on Intellectual Property
Position in the company	Executive Vice President (Marketing)
Positions held in other listed companies	None
Other position, present	None
Work experience	2018 – July 2019 Chief Strategy Officer Kulthorn Kirby Public Company 2012 – 2018 Executive Chairperson Kulthorn Group of Companies 1998 – 2012 Sales and Marketing Director Kulthorn Group of Companies 1994 – 1998 Procter & Gamble Manufacturing (Thailand) Assistant Brand Manager 1991 – 1992 Industrial Finance corporation of Thailand (IFCT) Credit Officer Social Activies 2018 National Legislative Assembly Working Group on Waste of Electrical and Electronics Equipment Law-Committee Member 2010 – Present Federation of Thai Industry • Member of the Board (2012 – 2014) • Air Conditioning Club Vice Chairman (2010 – Present) • Electrical, Electronic and Telecommunication Club Board Member (2018 – Present)

Name	Mr. Abhijit Simakulthorn *
Age	45
Nationality	Thai
Position	Director
Date of appointment as director	19 December 2018
Number of ordinary share held in the company	7,251,125 shares
Number of ordinary share held in the company	0.48341 %
Educational background	- Master Degree in MBA, Pennsylvania State University - Bachelor Degree in Economics, Thammasat University
IOD training	Director Accreditation Program (DCP) / 2011 Financial Statements for Directors Class 14/2011
Position in the company	None
Positions held in other listed companies	None
Other position, present	Director - Kulthorn Kirby Foundry Co., Ltd. - Kulthorn Electric Co., Ltd. - Thai Compressor Manufacturing Co., Ltd.
Work experience	2016 Executive Vice President, Kulthorn Kirby Foundry Co., Ltd. 2015 - 2016 Managing Director, Kulthorn Kirby Foundry Co., Ltd. 2013- 2015 Division Manager Finance, Kulthorn Kirby Public Company Limited. 2012 Administration Manager, Kulthorn Kirby Foundry Co., Ltd. 2009- 2011 Assistant Manager Administration, Kulthorn Materials and Controls Co., Ltd. 2010 - 2014 Director, The Federation of Industries, Chachoengsao Province. 2006- 2009 Credit analyst / Relationship Assistant, Kasikornbank Public Company Limited.

Name	Mr. Tawatchai Jaranakarun
Age	69
Nationality	Thai
Position	Independent Director / Chairman of the Audit Committee
Date of appointment as director	16 December 1998
Number of ordinary share held in the company	1,430 shares (holding by spouse)
Number of ordinary share held in the company	0.0001 %
Educational background	- Bachelor Degree in Law, Ramkhamkaeng University - Thai Barrister at Law - Capital Market Academy 17
IOD training	Director Accreditation Program (DAP) / 2004
Position in the company	None
Positions held in other listed companies	None
Other position, present	Lawyer by profession
Work experience	1978 - Present Lawyer 1977 - 1978 Official Receiver, Ministry of Justice 1976 - 1977 Land officer, Department of Land, Ministry of Interior

Name	Vice Admiral Naruedom Sa-ardyen RTN.
Age	82
Nationality	Thai
Position	Independent Director / Audit Committee
Date of appointment as director	16 March 2018
Number of ordinary share held in the company	None
Number of ordinary share held in the company
Educational background	B.A - Faculty of Commerce and Accountancy, Chulalongkorn University - Naral Staff School 37th Class - Naral Graduate School 18th Class - National Defence College 37th
IOD training	None
Position in the company	None
Positions held in other listed companies	None
Other position, present	None
Work experience	1 October 1977 - Lt. Commander Chief of Finance Branch, Dockyard Department, Naval Sattahib Base 1 October 1980 - Lt. Commander Chief of Executive Budget, Budgeting Division, Naval Comptroller Department. 1 October 1983 - Captain Chief of Finance Division, Naval Fleet. 1 October 1987 - Captain (Special) Chief of Finance Division, Naval Dockyard Department. Naval Sattahib Base 1 October 1987 - Captain (Special) Chief of General Expenditure Division, Naval Finance. 1 October 1987 - Captain (Special) Assistant Director of Naval Auditing Office. 1 October 1987 - Captain (Special) Deputy General, Director of naval Auditing Office. 1 October 1987 - Captain (Special) Deputy General, Naval Finance Department. 1 April 1997 - Rear Admiral Director of Naval Auditing Office. 1 April 2002 - Vice Admiral Chief of Staff Officer to the Deputy Department Secretary of Defence 1 October 2002 Retirement

Name	Mr. Somlak Jiamtiranat
Age	74
Nationality	Thai
Position	Independent Director/Member of the Audit Committee
Date of appointment as director	28 April 2010
Number of ordinary share held in the company	None
Number of ordinary share held in the company
Educational background	Bachelor Degree in Electrical Engineering (Communication) Chulalongkorn University
IOD training	Director Certification Program (DCP) / 2003
Position in the company	None
Positions held in other listed companies	None
Other position, present	Director - Champ Alliance Co., Ltd. - Champ Supply Center Co., Ltd. - Green Estate and K. Holding Group Co., Ltd.
Work experience	Member, Science and Technology Committee President, Crown Seal Public Company Limited. Managing Director, Siam NEC Co., Ltd. Managing Director, Siam Compressor Industry Co., Ltd.

Name	Pol. Gen. Pateep Tanprasert
Age	75
Nationality	Thai
Position	Company Secretary
Date of appointment as director	11 May 2023
Number of ordinary share held in the company	์None
Number of ordinary share held in the company	None
Educational background	Master Degree in Public Administration, from NIDA Bachelor Degree in Public Administration, from Police Cadet
IOD training	Director Certification Program (DCP) / 2549
Position in the company	Advisor/Executive Vice President (Administration)
Positions held in other listed companies	None
Other position, present	Chairman – Kulthorn Premier Co., Ltd. – Kulthorn Kirby Foundry Co., Ltd. – Kulthorn Steel Co., Ltd. – Kulthorn Materials and Controls Co., Ltd. – Kulthorn Metal Products Co., Ltd. – Kulthorn Research and Development Co., Ltd.
Work experience	2008 – 2011 – Director and Audit Committee, Government Housing Bank

Company Structure :

Company StructureBoard of Director

* Authorized Director

Mr. Sutee Simakulthorn *

Chairman of the board of directors/Acting President

Mr. Titisak Simakulthorn *

Director

Mr Sutas Simakulthorn

Director

Mrs. Supanee Chantasasawat*

Director

Mr. Abhijit Simakulthorn *

Director

Mr. Tawatchai Jaranakarun

Independent Director / Chairman of the Audit Committee

Vice Admiral Naruedom Sa-ardyen RTN.

Independent Director / Audit Committee

Mr. Somlak Jiamtiranat

Independent Director/Member of the Audit Committee

Pol. Gen. Pateep Tanprasert

Company Secretary

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