for Year 2017 Ending 31 December 2017 To : The President The Stock Exchange of Thailand The Board of Directors meeting of Ratchaphruek Hospital Public Company Limited (the Company) No. 1/2018 dated 24

2017. To The President and Governing Members of The Stock Exchange Market of Thailand Origin Property Public Company Limited and its subsidiaries hereinafter called “The Group” For the for the period of

หนา 1 ของ 5 ORI-FA001/2562 February 25, 2019 Title: The Operating Results of Origin Property Public Company and its Subsidiaries for the year ended December 31, 2018. To The President of The Stock

-months period ending 31 March 2019 To The President The Stock Exchange of Thailand We, ZEN Corporation Group Public Company Limited (“the Group”), are pleased to provide you our management discussion and

-Translation- Ref. WINNER 018/2020 May 14, 2020 Subject: Management Discussion and Analysis for the 3-month period ending 31 March 2020 To: The President The Stock Exchange of Thailand 1. Analysis of

or million baht, an increase of 141.55 193.53 million baht, a decrease of January 20, 2020 Management Discussion and Analysis for the year ended 31 December 2019 The Stock Exchange of Thailand

or million baht, an increase of 141.55 193.53 million baht, a decrease of February 19, 2020 Management Discussion and Analysis for the year ended 31 December 2019 The Stock Exchange of Thailand

operating results for the 3-month period and 6-month period ending June 30, 2017 To : President The Stock Exchange of Thailand Diamond Building Products Public Company Limited and its Subsidiary (together

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

แบบแสดงรายการข้อมูลสำหรับการเสนอขายหลักทรัพย์ (แบบ 69-1) 1 No. WHAUP-CS020/2018 May 10, 2018 Attention: Managing Director – Stock Exchange of Thailand Subject: Report of Financial Results for the