Mr. SUPORNCHAI SIRIWOHARN Mr. Supornchai Siriwoharn, the chief executive officer of the International Engineering Public Company Limited (“IEC”), a person responsible for the operation of IEC to

Mr. Pongkawin Jungrungruangkit Mr. Pongkawin Jungrungruangkit, Chairman, responsible for the operation of the International Engineering Public Company Limited (“IEC”), failed to supervise IEC to

Mr. Soraj Rojanabenjakul Mr. Soraj Rojanabenjakul , Chief Executive Officer and Chairman of the Executive Committee of Meta Corporation Public Company Limited (or Vintage Engineering Public

Mr. Soraj Rojanabenjakul Mr. Soraj Rojanabenjakul , Chairman of the Executive Committee of Meta Corporation Public Company Limited (or Vintage Engineering Public Company Limited) (“VTE

Mr. Gunkul Dhumrongpiyawut Mr. Gunkul Dhumrongpiyawut, Chairman of Gunkul Engineering Public Company Limited (“Gunkul”), had changed his securities holding during July 14, 2021 to July 19, 2021. In

service of electricity engineering. • Property, plant and equipment has increased Baht 30.22 million, as a result of assets for solar energy. • Restricted cash decreased by Baht 6 5 . 2 4 million because

. 68 million to Baht 1,580.25 million, which is increased by 11.94% due to additional revenue of engineering service in 2017 and revenue from solar energy began to recognize in 2017. Statement of

expert at the Office of Insurance Commission, and chairman and director of listed companies on the Stock Exchange of Thailand.Mr. Viput Ongsakul obtained a Bachelor’s Degree in Engineering, Chulalongkorn

Asia Pacific Drilling Engineering Company Limited During the period between 2021 and 2022, four juristic persons, namely (1) Phelps Dodge International (Thailand) Limited, (2) Thai Cable

Mr. Bhusana Premanode During 13 May 2015 to 17 August 2016, Mr. Bhusana Premanode, while being director and executive of International Engineering Public Company Limited (IEC), performed his duties