No. WHAUP-CS014-2562 1 8 August 2019 Re Share Acquisition in Duong River Surface Water Plant JSC in Vietnam Dear President The Stock Exchange of Thailand WHA Utilities and Power Public Company

Page 1 of 4 May 11, 2018 Subject : Operating Result Quarter 1 Ending March 31, 2018 To : The President The Stock Exchange of Thailand WICE Logistics Public Company Limited would like to clarify the

Company’s subsidiary. (Amendment No.2) Attention : Director and Manager Stock Exchange of Thailand Eastern Printing Public Company Limited ("the Company") would like to inform the resolutions of the Board of

Ref. PDI/BK-BS-064/2019 12th November 2019 Re: Management Discussion and Analysis (MD&A) For the three-month and nine-month periods ended September 30, 2019 To: President The Stock Exchange of

@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

(Ending March 31, 2020) To Director and Manager of the Stock Exchange of Thailand Ubis (Asia) Public Company Limited (“the Company”) would like to clarify on the performance and the financial status for the

According to referrals from the Stock Exchange of Thailand (SET) and the SEC’s further investigation, it was revealed that 14 individuals had engaged in THE trading orders in a manner consistent with

113 of the Securities and Exchange Act B.E. 2535 (1992) , as amended by the Securities and Exchange Act (No.4) B.E. 2551 (2008) , Section 100, Section 103(9) and (10), Section 109, Section 114, Section

Securities and Exchange Act B.E. 2535 (1992), as amended by the Securities and Exchange Act (No.4) B.E. 2551 (2008), Section 100, Section 103(9) and (10), Section 109, Section 114, Section 115, Section 116 and

) May 9, 2018 Re : Report the operating result for the year ended March 31 ,2018 by more than 20 percent. To : Director and Manager the Stock Exchange of Thailand Approved by the Board of Directors of