MDA Q2_2018 (Eng.) August 7, 2018 Subject : Interim Management Discussion and Analysis of Q2/2018 Attention : President of The Stock Exchange of Thailand We attach herewith the financial statements

Manager The Stock Exchange of Thailand The Board of Directors Meeting of O.C.C. Public Company Limited No. 5/2561 held on October 17, 2018 had resolved to approve the purchase of ordinary shares of Shop

MDA Q3_2018 (Eng.) November 7, 2018 Subject : Interim Management Discussion and Analysis of Q3/2018 Attention : President of The Stock Exchange of Thailand We attach herewith the financial statements

1/5 Ref. 4/2019 January 11, 2019 Subject : The acquisition of investment in Ramkhamhaeng Hospital PCL. To : Director and Manager The Stock Exchange of Thailand The Board of Directors Meeting

MD&A Q4_2019 (Eng ) February 19, 2020 Subject : Yearly Management Discussion and Analysis of 2019 Attention : President of The Stock Exchange of Thailand We attach herewith the financial statements

Microsoft Word - MD&A Q1_2020 (Eng ) May 8, 2020 Subject : Interim Management Discussion and Analysis of Q1/2020 Attention : President of The Stock Exchange of Thailand We attach herewith the

MD&A Q2_2020 (Eng ) July 31, 2020 Subject : Interim Management Discussion and Analysis of Q2/2020 Attention : President of The Stock Exchange of Thailand We attach herewith the financial statements

MD&A Q3_2020 (Eng ) November 2, 2020 Subject : Interim Management Discussion and Analysis of Q3/2020 Attention : President of The Stock Exchange of Thailand We attach herewith the financial

MDA Q3_2019 (Eng ) November 8, 2019 Subject : Interim Management Discussion and Analysis of Q3/2019 Attention : President of The Stock Exchange of Thailand We attach herewith the financial statements

แบบแสดงรายการข้อมูลสำหรับการเสนอขายหลักทรัพย์ (แบบ 69-1) 1 No. WHAUP-CS009/2562 May 09, 2019 Attention: Managing Director – Stock Exchange of Thailand Subject: Report of Financial Results for the