Letters to the SET

Year 2026

Month				Subject
February				• Notification of the resolutions of the Board of Directors’ Meeting No. 1/2026 regarding the dividend payment, and schedule of the 2026. Annual General Meeting of Shareholders (Revised) • Financial Performance Yearly (F45) (Audited) • Notification of the resolutions of the Board of Directors’ Meeting No. 1/2026 regarding the dividend payment, and schedule of the 2026. Annual General Meeting of Shareholders
January				• Report on the Result of of shareholders to propose agendas, nominate a person to be elected as the Company’s director and submit questions in advance for the 2026 Annual General Meeting of Shareholders

Year 2025

Month				Subject
November				• Financial Performance Quarter 3 (F45) (Reviewed) • Management Discussion and Analysis Quarter 3 Ending 30 Sep 2025
October				• Announcement of Public Holidays of SiamEast Solutions Public Company Limited for the Year 2026 • Rights of shareholders to propose Agenda, Submit questions, and Director Nominate for the 2026 Annual General Meeting of Shareholders
August				• Management Discussion and Analysis Quarter 2 Ending 30 Jun 2025 • Financial Performance Quarter 2 (F45) (Reviewed)
May				• Notice of Shareholders’2025 Annual General Meeting on the Company’s website • Financial Performance Quarter 1 (F45) (Reviewed)
April				• Notification of the resolution of the 2025 Annual General Meeting of Shareholders
March				• Publication of the invitation letter for the 2025 Annual General Meeting of Shareholders on the Company’s website
February				• Management’s discussion and analysis for the year ending on 31 December 2024 • Summary of the operating results of listed companies for the year (F45) (audited) • Announcing the resolution of the 1/2568 Board of Directors’ Meeting on the dividend payment and the schedule of the 2568 Annual General Meeting of Shareholders
January				• Announcing the results of the right for shareholders to propose agenda items and nominate persons to be considered for election as directors of the company and submit questions in advance For the 2025 Annual General Meeting of Shareholders in Advance

Year 2024

Month				Subject
November				• Management Discussion and Analysis, Quarter 3 Ending September 30, 2024 • Summary of operating results of listed companies in the 3rd quarter (F45) (reviewed)
October				• Set of traditional holidays for the year 2025 of Siam East Solution Public Company Limited
September				• Announcement of Public Holidays of SiamEast Solutions Public Company Limited for the Year 2025 • Invite shareholders to propose agenda for the 2025 Annual General Meeting of Shareholders, questions and names of directors in advance • Participation in investment in the establishment of a company (revised) • Participation in the establishment of a company
August				• Management’s discussion and analysis, 2nd quarter ending 30 June 2024 • Summary of the Company’s operating results, 2nd quarter (F45) (Reviewed)
May				• SE securities will be listed on the Stock Exchange of Thailand (SET) starting from May 27, 2024 • Management Discussion and Analysis for the First Quarter Ending March 31, 2024 • Summary of the operating results of listed companies in the first quarter (F45) (reviewed) • Publication of the report of the 2024 Annual General Meeting of Shareholders on the Company’s website • Registration of the reduction of registered capital of Siam East Solution Public Company Limited • Form for reporting the names and scope of work of the Audit Committee (F24-1)
April				• Notification of change in accounting supervisor • Notification of change in CFO information • Appoint the person with the highest responsibility in the accounting and finance department “CFO” CFO • Announcement of the resolution of the 2024 annual general meeting of shareholders • Announcement of the resolution of the 2024 annual general meeting of shareholders 2024 (edit template) • Report related items Loans and property rentals not exceeding 3 years • Request for amendments to Form 56-1 One Report for the year 2023
March				• Announcement of the resolution of the board of directors Regarding the dividend payment proposal for 2023 and the determination of the date and agenda of the 2024 Annual General Meeting of Shareholders (Amended Auditor Name) • Publication of the invitation letter for the 2024 Annual General Meeting of Shareholders on the Company’s website
February				• Announcement of the resolution of the Board of Directors About the dividend payment proposal for 2023 and the determination of the date and agenda of the 2024 Annual General Meeting of Shareholders (change of meeting start time)
January				• Notification of director resignation • Notification of the results of shareholders’ rights to propose agenda items and nominate persons for consideration for election as directors of the company and submit questions in advance For the 2024 Annual General Meeting of Shareholders in Advance

Year 2023

Month				Subject
November				• Management’s discussion and analysis, 3rd quarter ending 30 Sep. 2023 • Summary Operating results of the company, 3rd quarter (F45) (reviewed)
October				• Scheduled traditional holidays for the year 2024 of SiamEast Solutions Public Company Limited
September				• Inviting shareholders to propose agendas for the 2024 Annual General Shareholders’ Meeting, questions and names of directors in advance
August				• Summary of operating results of the company, 2nd quarter (F45) (reviewed)
May				• SE’s capital increase shares begin trading on May 25, 2023 • Notify Registration of paid-up capital increase with the Department of Business Development Ministry of Commerce • Form Report on dividend allocation (F53-5) • Registered reduction of registered capital of SiamEast Solutions Public Company Limited • word Management’s explanation and analysis, 1st quarter ending 31 March 2023 • Summary Operating results of the company, quarter 1 (F45) (reviewed) • Publish the minutes of the 2023 Annual General Meeting of Shareholders on the company’s website.
April				• Notification of the resolution of the Annual General Meeting of Shareholders 2566
March				• Publishing the invitation to the 2023 Annual General Meeting of Shareholders • Notify Resolution of the Board of Directors Concerning the dividend payment proposal for the year 2022 and setting the date and agenda for the 2023 Annual General Shareholders’ Meeting (editing dividend payment details)
February				• Notification of the resolution of the Board of Directors Concerning the dividend payment proposal for the year 2022 and setting the date and agenda for the 2023 Annual General Meeting of Shareholders (edited) • Notify Resolution of the Board of Directors Concerning the dividend payment proposal for the year 2022 and setting the date and agenda for the 2023 Annual General Meeting of Shareholders (edited) • Notify Resolution of the Board of Directors Concerning the dividend payment proposal for the year 2022 and setting the date and agenda for the 2023 Annual General Shareholders’ Meeting (edited Template) • Summary Company operating results for the year (F45) (audited) • word Management’s explanation and analysis for the year ending 31 Dec. 2022 • Notify Resolution of the Board of Directors Concerning the dividend payment proposal for the year 2022 and setting the date and agenda for the 2023 Annual General Shareholders’ Meeting • Notify Results of granting shareholders rights to propose meeting agendas and nominate people to be selected Being a director of the company For the annual general meeting of shareholders 2566

Year 2022

Month				Subject
November				• Giving shareholders the right to propose agenda items for the Annual General Meeting of Shareholders and Nominate a person to be considered for election as Company Director and propose questions in advance of the 2023 annual shareholder meeting • Traditional holidays of the company
October				• Notification of rights to subscribe for additional common shares. Capital (Pre-emptive right)
June				• Capital increase of OKS subsidiary • Submission of securities offering registration form and draft UBA prospectus to the MAI Stock Exchange
August				• Management’s discussion and analysis, 2nd quarter ending 30 June 2022 • Summary of operating results of the company, 2nd quarter (F45) (reviewed )
May				• Notification of change in CFO 05.05.2022 • Stock dividend allocation report form (F53-5) • Summary of operating results of the company, quarter 1 (F45)(reviewed) ) • SE’s capital increase shares begin trading on 24 May 2022
April				• SE – AGM 2022 -Minutes TH
March				• Summary of the operating results of the listed companies for the year. (F45) (verified) (edited)
February				• Summary of the operating results of the listed companies for the year. (F45) (verified)

Year 2021

Month				Subject
November				15 Nov. 2021 • Financial Statement Quarter 3/2021 (Reviewed) 15 Nov. 2021 • Summary of operating results of the company. Quarter 3 (F45) (Reviewed) (Revised) 15 Nov. 2021 • Management explanation and analysis. 3rd quarter ending 30 Sep. 2021 19 Nov. 2021 • Notification of annual business holidays 2022
June				21 June 2021 • Report on sales results of common stocks offered for sale to Existing common shareholders (F53-5) 23 June 2021 • SE’s capital increase shares Trading begins on June 24, 2021
May				10 May 2021 • Publication of the notice of rights to subscribe for new ordinary shares on the website of SiamEast Solutions Company Limited. (Public) 11 May 2021 • Stock dividend allocation report form (F53-5) • Publish the minutes of the 2021 Annual General Meeting of Shareholders on the company’s website. 13 May 2021 • Notification of director resignation • Financial Statements, Quarter 1/2021 (Reviewed) • Summary of operating results of the company. Quarter 1 (F45) (Reviewed) • Management’s discussion and analysis, 1st quarter ending 31 March 2021 17 May 2021 • SE’s capital increase shares Trading begins on May 18, 2021 • Notification of correction of deposit account name and add payment channels in the information book 25 May 2021 • Notification of establishment of a subsidiary company
April				2 April 2021 • Opinion of the independent financial advisor on the asset acquisition and related transactions. 5 April 2021 • Publication of the invitation to the 2021 Annual General Meeting of Shareholders 27 April 2021 • Notification of change in meeting location and measures for attending the 2021 Annual General Meeting of Shareholders and approval of the establishment of a subsidiary of the Company (edit Template) 29 April 2021 • Shareholder meeting resolution
March				3 March 2021 • Financial statements for the year 2020 (audited) (corrected notes to financial statements, section 28.1) 8 March 2021 • Board resolution, dividend payment Entering into related transactions, increasing capital, allocating additional common shares Set date for shareholder meeting 2021 (edit PDF) 10 March 2021 • Board resolution to amend dividend payment approval (edit PDF item 5, page 4 and Template)
February				23 February 2021 • Financial statements for the year 2020 (audited) • Summary of operating results of listed companies for the year (F45)(Audited)
January				22 January 2021 • Giving shareholders the right to propose agenda items for the Annual General Meeting of Shareholders and nominate individuals to be considered for election as company directors. and propose questions in advance of the 2021 shareholder meeting

Year 2020

Month				Subject
November				26 November 2020 • Notification of annual business holidays 11 November 2020 • Management’s discussion and analysis for the 3rd quarter ending 30 Sep. 2020 • Summary of operating results of the company. Quarter 3 (F45)(Reviewed) • Financial statements for the 3rd quarter of 2020 (reviewed)
August				19 August 2020 • Notification of compensatory holidays in place of the traditional Songkran holiday for the year 2020. • Financial Statement 2nd Quarter 2020 (Reviewed) • Summary of operating results of the company in the 2nd quarter. (F45)(Reviewed) • Management’s discussion and analysis for the 2nd quarter. 2 ends on 30 June 2020 • Summary of the operating results of the company in the 2nd quarter. (F45)(Reviewed) • Financial Statement 2nd Quarter 2020 (Reviewed)
July				8 July 2021 • Notification of compensatory holidays in place of the annual traditional Songkran holiday. 2020 1 July 2020 • Publish the minutes of the 2020 Annual General Meeting of Shareholders. On the company’s website
June				18 June 2020 • Resolutions of the shareholder meeting (revised) 17 June 2020 • Resolutions of the shareholder meeting
May				19 May 2020 • Publishing the invitation to the Annual General Meeting of Shareholders. 2020 (revised) • Publication of the invitation to the 2020 Annual General Meeting of Shareholders 13 May 2020 • Summary of the company’s operating results. Quarter 1 (F45) • Financial Statement for Quarter 1/2020 (Reviewed) • Notification of the directors’ resolution Set the date for the 2020 Annual General Meeting of Shareholders and acknowledge the interim dividend payment.
April				7 April 2020 • Postponement of the 2020 Annual General Meeting of Shareholders and Approval of Interim Dividend Payment • Notification of the directors’ resolution Set the date for the 2020 Annual General Meeting of Shareholders and dividend payment. • Postponement of the 2020 Annual General Meeting of Shareholders and Approval of Interim Dividend Payment
March				25 March 2020 • Publishing the invitation to the 2020 Annual General Meeting of Shareholders. 24 March 2020 • Notification of cancellation of the company’s annual traditional holiday. 2020
February				25 February 2020 • Management’s discussion and analysis for the year ending 31 Dec. 2019 • Summary of the company’s operating results. Annual (F45) • Annual financial statement 2019 (audited) • Notification of the directors’ resolution. Set the date for the 2020 Annual General Meeting of Shareholders and dividend payment. 20 February 2020 • Notification of the results of granting shareholders rights to propose agenda items. and nominate persons to be considered for election as directors. At the annual general meeting of shareholders 2020

24 March 2020 • Notification of cancellation of the company’s annual traditional holiday. 2020 February 25 February 2020 • Management’s discussion and analysis for the year ending 31 Dec. 2019 • Summary of the company’s operating results. Annual (F45) • Annual financial statement 2019 (audited) • Notification of the directors’ resolution. Set the date for the 2020 Annual General Meeting of Shareholders and dividend payment.

20 February 2020 • Notification of the results of granting shareholders rights to propose agenda items. and nominate persons to be considered for election as directors. At the annual general meeting of shareholders 2020

Year 2019

Month				Subject
November				27 November 2019 • Notification of shareholders’ rights to propose agenda items for the general meeting of shareholders and nominate persons to To be considered for election as a company director. and propose questions in advance of the 2020 shareholder meeting 25 November 2019 • Notification of holidays for the year 2020 13 November 2019 • Management’s discussion and analysis, 3rd quarter ending 30 Sep. 2019 • Summary of the company’s operating results. Quarter 3 (F45) • Financial statements for the 3rd quarter of 2019 (reviewed)
October				15 October 2019 • Form to notify change of user list
August				20 August 2019 • Notification of change of CFO/ Accounting Supervisor 14 August 2019 • Resignation of Director Appointment of directors and organizational restructuring • Management’s discussion and analysis, 2nd quarter ending 30 June 2019 • Summary of the company’s operating results. Quarter 2 (F45-2) • Financial statement for 2nd quarter 2019 (reviewed)
June				28 June 2019 • Resolutions of the shareholder meeting (revised)
May				14 May 2019 • Management’s discussion and analysis, 1st quarter ending 31 March 2019 • Summary of the company’s operating results. Quarter 1 (F45-2) • Financial statements for the 1st quarter of 2019 (reviewed) 7 May 2019 • Publish the minutes of the 2019 Annual General Meeting of Shareholders on the company’s website< /td>
April				24 April 2019 • Resolutions of the shareholder meeting
March				27 March 2019 • Publishing the invitation to the annual general meeting of shareholders. 2019
February				26 February 2019 • Notification of the directors’ resolution Set the date for the 2019 Annual General Meeting of Shareholders and dividend payment. • Management’s discussion and analysis for the year ending 31 Dec. 2018 • Summary of the company’s operating results. Annual (F45-2) • Annual financial statement 2018 (audited) 7 February 2019 • Notification of the results of granting shareholders rights to propose meeting agendas and nominate persons to be elected as directors. AGM 2019 Committee
January				25 January 2019 • Notification of change to Website Domain 10 January 2019 • Notification of change of CFO/ Accounting Supervisor • Notification of director resignation

Year 2018

Month				Subject
December				4 December 2018 • Notification of shareholders’ rights to propose agenda items for the general meeting of shareholders. and nominate individuals to be considered for election as company directors. and propose questions in advance of the 2019 shareholder meeting
November				22 November 2018 • Notification of holidays for the year 2019 14 November 2018 • Management’s discussion and analysis, 3rd quarter ending 30 Sep. 2018 • Summary of the company’s operating results. Quarter 3 (F45-2) • Financial Statement 3rd Quarter 2018 (Reviewed)
August				10 August 2018 • Management’s discussion and analysis, 2nd quarter ending 30 June 2018 • Summary of the company’s operating results. Quarter 2 (F45-2) • Financial statement for 2nd quarter 2018 (reviewed)
July				31 July 2018 • Report on use of capital increase proceeds
May				8 May 2018 • Management’s discussion and analysis, 1st quarter ending 31 March 2018 • Summary of the company’s operating results. Quarter 1 (F45-1) • Financial statements for the 1st quarter of 2018 (reviewed)
April				25 April 2018 • Resolutions of the shareholder meeting (revised 1) 24 April 2018 • Notification of resolutions of the 2018 Annual General Meeting of Shareholders 3 April 2018 • Report on the opinion of the independent financial advisor. In the list of assets acquisition and related items
February				23 February 2018 • Notification of the directors’ resolution Acquisition of assets and entering into connected transactions Dividend payment Appointment of directors whose terms have expired Appointment of auditors Consideration of amendments to regulations and setting the date for the 2018 Annual General Meeting of Shareholders 22 February 2018 • Summary of the company’s operating results. Annual (F45-1) • Management’s discussion and analysis for the year ending 31 Dec. 2017 • Summary of the company’s operating results. Annual (F45-1) • Annual financial statement 2017 (audited)
January				31 January 2018 • Report on the use of additional capital received from the public offering of common shares

Year 2017

Month				Subject
December				1 December 2017 • Notification of shareholders’ rights to propose agenda items for the general meeting of shareholders. and nominate individuals to be considered for election as company directors. and propose questions in advance of the 2018 annual shareholder meeting
November				20 November 2017 • Notification of holidays for the year 2018 10 November 2017 • Management’s discussion and analysis, 3rd quarter ending 30 Sep. 2017 • Summary of the company’s operating results. Quarter 3 (F45-1) • Financial statements for the 3rd quarter of 2017 (reviewed)
August				9 August 2017 • Management’s discussion and analysis, 2nd quarter ending 30 June 2017 • Summary of the company’s operating results. Quarter 2 (F45-1) • Financial statement for 2nd quarter 2018 (reviewed)
July				31 July 2018 • Report on use of capital increase proceeds
May				11 May 2017 • Management’s discussion and analysis, 1st quarter ending 31 March 2017 • Summary of the company’s operating results. Quarter 1 (F45-1) • Financial statements for the 1st quarter of 2017 (reviewed)
April				26 April 2017 • Notification of resolutions of the 2017 Annual General Meeting of Shareholders 7 April 2017 • Edit information in the 2016 annual information form (Form 56-1) 3 April 2017 • Publishing the invitation to the annual general meeting of shareholders. 2017
February				23 February 2017 • Notification of the board resolution Dividend payment Appointment of directors whose terms have expired Appointment of auditors and set the date for the 2017 annual general meeting of shareholders 22 February 2017 • Notification of the board resolution Dividend payment Appointment of directors whose terms have expired Appointment of auditors and set the date for the 2017 annual general meeting of shareholders • Management’s discussion and analysis for the year ending 31 Dec. 2016 • Summary of the company’s operating results. Annual (F45-1) • Annual financial statement 2016 (audited) 10 February 2017 • Summary of the company’s operating results. Quarter 3 (F45-1) • Summary of the company’s operating results. Annual (F45-1) • Management’s discussion and analysis, 3rd quarter ending 30 Sep. 2016 • Summary of the company’s operating results. Quarter 3 (F45-1) • Financial statements for the 3rd quarter of 2016 (reviewed) • Management’s discussion and analysis for the year ending 31 Dec. 2015 • Summary of the company’s operating results. Annual (F45-1) • Annual financial statement 2015 (audited) • Policy for submitting financial statements • MAI Stock Exchange adds products: SE, trading starts on February 14, 2017< /td>