14 November 2019 Subject: Management Discussion and Analysis for the 9-Month Period Ended September 30, 2019 To: Directors and Managers The Stock Exchange of Thailand Halcyon Technology Public

@halcyon.co.th No. CS-2563/013 14 August 2020 Subject: Management Discussion and Analysis for the 3-Month Period Ended 31 March 2020 To: Directors and Managers The Stock Exchange of Thailand Halcyon Technology

TikTok account “betagro_stock_insights” impersonates “BETAGRO Plc.” : Unlicensed securities and derivatives business (Disclosure Date : 09/10/2024)

TikTok account "okj_stock_trade" impersonates "Pluk Phak Praw Rak Mae Plc." : Unlicensed securities and derivatives business (Disclosure Date : 20/03/2025)

TikTok account “sawakami_stock_thailand” impersonates “Sawakami Asset Management (Thailand) Co., Ltd.” : Unlicensed securities and derivatives business (Disclosure Date : 30/08/2024)

TikTok account “stock_marketsawakami” impersonates “Sawakami Asset Management (Thailand) Co., Ltd.” : Unlicensed securities and derivatives business (Disclosure Date : 02/10/2024)

TikTok account “stock_online_” impersonates “HUA SENG HENG Co., Ltd.” : Unlicensed securities and derivatives business (Disclosure Date : 02/10/2024)

TikTok account “sawakamith_stock” impersonates “Sawakami Asset Management (Thailand) Co., Ltd.” : Unlicensed securities and derivatives business (Disclosure Date : 10/10/2024)

661 6664-5 www.indoramaventures.com Ref.No.IVL002/07/2019 30th July 2019 President The Stock Exchange of Thailand Subject: Acquisition of Speciality Fibers Business of Sinterama Indorama Ventures Public

. (66)2-9063242-50 e-mail: info@halcyon.co.th No. CS-2563/002 27 February 2020 Subject: Resolution of the Board of Directors’ Meeting No.1/2020 Attention: Directors and Managers, The Stock Exchange of