Notification of the Final Exercise Schedule of the Warrants No. 2 ("PROEN-W2")

Notification the exercise of securities/ Notification the conversion of securities Subject : Notification the Final Exercise of securities Date announced : 03-Sep-2026 Name of securities : PROEN-W2 Exercise date : 14-Oct-2026 Book closing date of warrant : From 23-Sep-2026 to 14-Oct-2026 registration Date of request to post "SP" sign : From 21-Sep-2026 to 14-Oct-2026 The notification period for the exercise : From 28-Sep-2026 to 12-Oct-2026 of the securities Exercise price (baht per share) : 1 Exercise ratio (Warrants : common : 4 : 1 shares) Delisting date : 15-Oct-2026 Exercise Procedure : https://investor.proen.co.th/information-for-the-warrant-holders/ Contact Persons and Place to Exercise : Company's Office No. 11/80 Soi Pracha Uthit 8, Yaek 2 Pracha Uthit Road, Huai Khwang Subdistrict, Huai Khwang District, Bangkok 10310, Thailand Tel.: (02) 690-3888 Ext. 910 Website: www.proen.co.th Contact Person: Ms. Kullakarn Jirakulkanwara E-mail: kullakarn@proen.co.th Authorized to sign on behalf of the : Mr.Chaiyooth Srijabok company Position : Director Authorized to sign on behalf of the : Mr.Kittipan Sri-Bua-Iam company Position : Director ______________________________________________________________________ This announcement was prepared and disseminated by listed company or issuer through the electronic system which is provided for the purpose of dissemination of the information and related documents of listed company or issuer to the Stock Exchange of Thailand only. The Stock Exchange of Thailand has no responsibility for the correctness and completeness of any statements, figures, reports or opinions contained in this announcement, and has no liability for any losses and damages in any cases. In case you have any inquiries or clarification regarding this announcement, please directly contact listed company or issuer who made this announcement. If you would like to see the full details of this information, please click view "full details" in attached file.