ที่ กบร No. Kor Bor Ror. 008/2018 May 10, 2018 President The Stock Exchange of Thailand Re : Credit guarantee to A Tech Textile Co., Ltd. on shareholding proportion Ref : Document no. Kor Bor Ror

No. Lor Gor. 004/2020 May 11, 2020 President The Stock Exchange of Thailand Re : Credit guarantee to A Tech Textile Co., Ltd. on shareholding proportion Ref : Document no. Kor Bor Ror. 008/2018 dated

October 30, 2020 Subject: The Management Discussion and Analysis for the year ended 31st December 2019 To: President The Stock Exchange of Thailand Well Graded Engineering Public Company Limited (“the

Exchange of Thailand Digital Tech Public Company Limited would like to notify the operating performance to the Stock Exchange of Thailand as follows: For the three-month period ended September 30, 2018, the

Digital Tech Planet Public Company Limited 973 President Tower Building, Unit 7B, 7C, 7D, 7I, 7th Floor, Ploenchit Road, Lumpini, Pathumwan, Bangkok 10330| Tel No. 02 656 0189

Earth Tech Environment Public Company Limited Page 1 17th August 2020 Subject Management Discussion and Analysis Financial Performance for the quarter ended 30th June 2020 To President The Stock

Director and Manager The Stock Exchange of Thailand The Company would like to report the Company’s operating result for the 1st Quarter ended March 31, 2018 that total revenue was THB8.24 million decreased

To: The Director and Manager The Stock Exchange of Thailand The Company would like to report the Company’s operating result for the 3rd Quarter ended September 30, 2017 that total revenue was THB25.86

Director and Manager The Stock Exchange of Thailand The Company would like to report the Company’s operating result for the year ended December 31, 2017 that total revenue was THB84.90 million increased by

: The Director and Manager The Stock Exchange of Thailand The Company would like to report the operating results for the 2nd Quarter ended June 30, 2018 that total revenue was at THB8.94 million