ที่ กตพ Ref. DBP. 073 / 2019 May 13, 2019 Subject : Clarification on Operating Results for the 1st quarter ending March 31, 2019 To : President The Stock Exchange of Thailand Diamond Building

can be classified to business segments as follows: 1B1, B2: Filters Vision Public Company Limited (Herein after “ The Company” ). 2B3 : Irving Corporation Ltd., KT Medical Services Co., Ltd., Medical

the 6 months period ended June 30, 2019 To: President The Stock Exchange of Thailand Rich Asia Corporation Public Company Limited ("the Company") would like to report the information according to the

first quarter of 2020, the total remaining backlog was THB 9,542mn, decreasing by 7.6% compared to THB 10,324mn at the end of 2019 from the value transferred of 6 ready-to-move-in projects namely (i) The

Page 1 of 9 Singha Estate Public Company Limited Management Discussion and Analysis 2Q20 Executive Summary Since May 2020, restriction has gradually been lifted and lockdown measure started to be

for obsolete and decline in value of inventories of THB 5.99 million. Decrease in property, plant, and equipment for THB 444.48 million, mainly due to reclassifying PPE to right–of-use assets under TFRS

the year period ended December 31, 2019 To: President The Stock Exchange of Thailand Rich Asia Corporation Public Company Limited ("the Company") would like to report the information according to the

additional installed capacity of 150,000 cubic meters per day (Phase 1B) was ready to start commercial operation from November 2019. Although, SDWTP had average sales volume more than 80% of Phase 1A’s

the shareholding in subsidiary companies To: President The Stock Exchange of Thailand Attachment: 1. Structure of the shareholding in subsidiary companies 2. Information on the Connected Transaction of

-Translation- Ref. WINNER 006/2020 February 27, 2020 Subject: Management Discussion and Analysis (MD & A) for the year 2019 (Revised) To: The President The Stock Exchange of Thailand 1. Analysis of