AC 52/07-003 ACC1/20-030 May 11, 2020 Subject: Management Discussion and Analysis Quarter 1 Ending March 31, 2020 To: Director and Managing Director The Stock Exchange of Thailand Qualitech Public

Stock Exchange of Thailand The operating performance for three-month period end of 31 March 2020 of Mahachai Hospital Public Company Limited compared to the prior year was decreasing in net profit

Stock Exchange of Thailand The operating performance for three-month period end of 30 June 2020 of Mahachai Hospital Public Company Limited compared to the prior year was decreasing in net loss amounting

28th February 2020, Management Discussion and Analysis Attention: President of the Stock Exchange of Thailand, Eason Paint Public Company Limited (EASON) reported the Statement of Comprehensive

Stock Exchange of Thailand The operating performance for year end 31 December 2019 of Mahachai Hospital Public Company Limited compared to the prior year was decreasing in net profit amounting to Baht

หนา้ 1 จาก 1 Translation May 13, 2020 Subject: Management explanation and analysis for Year ended 31 March 2020 Attn: The Managing Director, the Stock Exchange of Thailand Pacific Pipe Public Company

Manager of The Stock Exchange of Thailand Union Petrochemical Public Company Limited and its subsidiaries ("the Company") would like to clarify the operating results for the Quarter1/2020 ended March 31

AC 52/07-003 ACC1/19-055 November 11, 2019 Subject: Management Discussion and Analysis Quarter 3 Ending September 30, 2019 To: Director and Managing Director The Stock Exchange of Thailand Qualitech

/2021 08:49 Share Acquisition in KOPOS Co., Ltd. in Republic of Korea 17/11/2021 07:36 Investment in Huong Hoa Holding Joint Stock Company in the Socialist Republic of Vietnam 10/11/2021 18:35 Investment

Our Ref: APURE 028/2021 12 November 2021 Subject Clarification on 3rd Quarter’s Operating Performance (3/2021) Attn. To President The Stock Exchange of Thailand The company clarifies causes and