( Thai CAC ) under Thai Institute of Directors (as of October 14, 2024) are categorised into: companies that have declared their intention to join CAC, and companies certified by CAC. 4  The record of

their intention to join CAC, and companies certified by CAC. 4  The record of listed companies with corporate sustainable development " SET ESG Rating 2023 " 5  Financial Data / Company Business / Address

certified by CAC. 4  The record of listed companies with corporate sustainable development " SET ESG Rating 2023 " 5  Financial Data / Company Business / Address / Major Shareholders / Management / Business

into: companies that have declared their intention to join CAC, and companies certified by CAC. 4  The record of listed companies with corporate sustainable development " SET ESG Rating 2023 " 5

: companies that have declared their intention to join CAC, and companies certified by CAC. 4  The record of listed companies with corporate sustainable development " SET ESG Rating 2023 " 5  Financial Data

I - Translation - Ref : LPH/SET 2020/004 February 25, 2020 Subject : Clarification on the Operating Results for Year 2019 period ended December 31, 2019 To : President The Stock Exchange of Thailand

1/2 RC 12/19 7 May 2019 Subject : Report on the Company’s operating results for the first quarter of the year 2019 Attention : President of the Stock Exchange of Thailand The Board of Directors

51-E 1/2 RC 51/18 8 August 2018 Subject : Report on the Company’s operating results for the second quarter of the year 2018 Attention : President of the Stock Exchange of Thailand The Board of

and Managers, The Stock Exchange of Thailand The Board of Directors’ Meeting of Halcyon Technology PLC. (the “Company”) had passed the resolution to convene the 2020 Annual General Meeting of

-9320 Ref: PLC 2020/008 April 7, 2020 Subject: Postponement of the 2020 Annual General Meeting of Shareholders ("AGM") and Notice of interim dividend agenda consideration To: The President of the Stock