The Board of Directors of Diamond Building Products Public Company Limited at the Meeting No. 385, dated April 23, 2024, has resolved as follows. Approval for the appointment of Mr. Asanee Chantong from the Directorship position to become the Independent Director as Mr. Asanee Chantong has the qualifications as an independent director according to the Notification of Capital Market Supervisory Board TorJor.

39/2559, effective from April 23, 2024 onward. The Independent Director shall have the directorship term equivalent to the remaining directorship term of the Director only. Approval for the change of the authorized directors with the authority to bind the Company, effective from April 23, 2024 onward, having details as follows; Previous ?Mr. Prakit Pradipasen, Mr. Chaiyut Srivikorn, Mr. Asanee Chantong, Mr. Satid Sudbuntad and Mr. Sunthorn Suwannajade with two out of these five directors jointly sign with the Company's seal.?

New ?Mr. Prakit Pradipasen, Mr. Chaiyut Srivikorn, Mr. Satid Sudbuntad and Mr. Sunthorn Suwannajade with two out of these four directors jointly sign with the Company's seal.? Accordingly, the Company will file an application to register the change of the authorized directors with the authority to bind the Company with the Department of Business Development, Ministry of Commerce.