คำอธิบายฝ่ายบริหาร_ENG (Translation) Ref. No. 1811/043EN November 9, 2018 Subject: Operating Result Clarification for Q3/2018 (Ending September 30, 2018) To: Director and Manager of the Stock

the auditors of the company for the year 2020 (Revise) Attn: President The Stock Exchange of Thailand Please find the reviewed Financial Statement for the Quarter 1/2020 ending 31 March 2020 which had

Thailand Taxonomy under the collaboration of Bank of Thailand (BOT), SEC Thailand, Stock Exchange of Thailand (SET), Department of Climate Change and Environment (DCCE), and 26 related agencies both from

Ref.No.1905/026EN July 16, 2019 Subject Inform about The Connected Transaction Attention President of the Stock Exchange of Thailand According to the Board of Directors Meeting No.9/2019 of UBIS

(-Translation-) Ref. No. SorNor. 036/2018 August 10, 2018 To: The President The Stock Exchange of Thailand Re: Disclosure of Information regarding Connected Transaction by Subsidiary Whereas, the

ที่ กตพ Ref. DBP. 107 / 2018 August 14, 2018 Subject : Clarification on Operating Results for the 3-month Period and 6-month Period ending June 30, 2018 To : President The Stock Exchange of Thailand

ที่ กตพ Ref. DBP. 156 / 2018 November 12, 2018 Subject : Clarification on Operating Results for the 3rd quarter and 9-month Period ending September 30, 2018 To : President The Stock Exchange of

No. WICE 021/2020 February 28,2020 Subject Report the resolution of the Board of Directors To : President The Stock Exchange of Thailand Attachment 1. Information Memorandum regarding the Proposed

1 Ref: CK-20-0000-AFD(AC)-L-0042 August 14, 2020 Subject: Clarification on Operating Result and Financial Position for the six-month period ended June 30, 2020 Attention: President The Stock Exchange

Ref. DBP. 111 / 2020 August 10, 2020 Subject : Clarification on Operating Results for the 2nd quarter and 6-month period ending June 30, 2020 To : President The Stock Exchange of Thailand Diamond