ที่ บช NO. AC. 004/2017 13 November 2017 Subject: Clarification of changes in operating performance of more than 20% To: The President of the Stock Exchange of Thailand M.K. Real Estate Development

projects The management maintain positive view onThailand's economic growth, which evaluated from the Company’s customers database and reports from the Bank of Thailand(BOT). BOTexpectsthat the

February 28,2020 Re: Clarification of the operating results of company and its subsidiaries for the year ended as at December 31, 2019 To: President The Stock Exchange of Thailand K.C. Property

Transfer status according to project value for the year ended December 31 2020 2019 Balance not yet transferred THB mm THB mm THB mm % Veranda Hi Residence Chiang Mai 198.25 - 22 35.3 Veranda Residence

Translation CEN 016-2020 August 14, 2020 Subject Management Discussion and Analysis for business operation of Quarter 2/2020 To The Manager and President The Stock Exchange of Thailand Capital

Exchange of Thailand Earth Tech Environment Public Company Limited (“the Company”) provides Management Discussion and Analysis for the three months and six months ended 30th June 2020 as follows Overview of

October 11, 2019 Re: Clarification of the operating results of company and its subsidiaries for the year ended as at December 31, 2018 To: President The Stock Exchange of Thailand K.C. Property

rights and liberties of persons, which Section 29, in conjunction with Section 32, Section 33, Section 34, Section 41, Section 43, Section 44 and Section 64 of the Constitution of the Kingdom of Thailand

, Thailand cannot undertake any responsibility for its accuracy, nor be held liable for any loss or damages arising from or related to its use. Notification of the Office of Securities and Exchange Commission

Translation (Translation) Readers should be aware that only the original Thai text has legal force and that this English translation is strictly for reference. The SEC, Thailand cannot undertake any