Comments on: “Trading costs on the Stock Exchange of Thailand” Authors: Charoenwong C., Ding D.K., Jenwittayaroje N. Comments on: “Risk-taking behaviour during downturn: evidence of loss-chasing and

potential investment in the business of Planet. The Company will report any additional information or progress relating to such potential investment in Planet to the Stock Exchange of Thailand, and

Province of Planet Board Company Limited, which is a Subsidiary of the Company (Additional) Attention President The Stock Exchange of Thailand Enclosure Information Memorandum on Acquisition of Assets of

1 -Translation- No.ECF2 004/2018 24 January 2018 Subject: Change in Shareholding Structure of the Planet Board Company Limited, a Subsidiary Company of the Company To: President The Stock Exchange of

Province of Planet Board Company Limited, which is a Subsidiary of the Company Attention President The Stock Exchange of Thailand Enclosure Information Memorandum on Acquisition of Assets of East Coast

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

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