-1- AIT (VP-SEC) 026E/2020 August 10, 2020 Subject: Management's Discussion and Analysis of Operating Results for Q2-2020 To: The President of The Stock Exchange of Thailand Summary of Operations Q2

EKH/CS/2020/030 11 August 2020 Subject: Management Discussion and Analysis for the Second Quarter 2020 results To Directors and Manager The Stock Exchange of Thailand Ekachai Medical Care Public

”) has informed the Stock Exchange of Thailand of the resolution of the Meeting of the Board of Directors held on December 13, 2017 which approved the change to particulars of the investment in the Project

YONG THAI PUBLIC COMPANY LIMITED 633/14 Sathupradit Road, Yannawa, Bangkok 10120 Thailand Tel. (662) 2943364-8, Fax : (662) 2943373 YTC 12/2019 May 15, 2019 To : The President The Stock Exchange of

YONG THAI PUBLIC COMPANY LIMITED 633/14 Sathupradit Road, Yannawa, Bangkok 10120 Thailand Tel. (662) 2943364-8, Fax : (662) 2943373 YTC 17/2019 August 14, 2019 To : The President The Stock Exchange

ที่ - Translation - PorBor. 029 / 2018 August 14, 2018 Subject: Clarification of operating results change from the same period last year by more than 20% To: President The Stock Exchange of Thailand

YONG THAI PUBLIC COMPANY LIMITED 633/14 Sathupradit Road, Yannawa, Bangkok 10120 Thailand Tel. (662) 2943364-8, Fax : (662) 2943373 YTC 19/2018 November 14, 2018 To : The President The Stock Exchange

ที่ กบร No. Lor Gor. 016/2020 May 13, 2020 President The Stock Exchange of Thailand Re : Clarification on the company’s over 20% change in its operating results for 2nd quarter, 2020 Dear Sir, Thai

operating results change from the same period last year by more than 20% To: President The Stock Exchange of Thailand Rich Asia Corporation Public Company Limited and subsidiaries would like to clarify the

/ SET ESG Ratings n/a Ranking by Industry Business 4/ Company Profile 4/ Field name Detail Address 8/5 Moo 14, Tha-change, Bangklam District Songkhla90110 Phone 0-7480-0111 Fax 0-7480-1286 URL