1 10 November 2017 Subject: Explanation of operating result in the financial statement ended 30 September 2017 To: Directors and Managers of the Stock Exchange of Thailand With reference to the

YONG THAI PUBLIC COMPANY LIMITED 633/14 Sathupradit Road, Yannawa, Bangkok 10120 Thailand Tel. (662) 2943364-8, Fax : (662) 2943373 YTC 31/2017 November 13, 2017 To : The President The Stock Exchange

and General Manager The Stock Exchange of Thailand Eureka Design Public Company Limited and its subsidiaries (“the Group”) would like to clarify the changes in excess of 20% in the Group’s operating

November 28, 2005 No. 13 /2017 November 13, 2017 President The Stock Exchange of Thailand 93 Ratchadapisek Road, Dindaeng, Bangkok 10400 Subject : Clarification of the operating result. Dear sir, We

1 12 February 2018 Subject: Explanation of operating result in the financial statement ended 31 December 2017 To: Directors and Managers of the Stock Exchange of Thailand With reference to the

November 28, 2005 No. 2/2018 February 22, 2018 President The Stock Exchange of Thailand 62 Ratchadapisek Road, Klongtoey, Bangkok 10110 Subject : Clarification of the operating result. Dear sir, We

: Director and General Manager The Stock Exchange of Thailand Eureka Design Public Company Limited and its subsidiaries (“the Group”) would like to clarify the changes in excess of 20% in the Group’s operating

ที่ BCH No. BCH 018/2018 26 February 2018 Subject : Explanation of the changes in operating results for the year ended 31 December 2017 which exceed 20% To : The President The Stock Exchange of

(TRANSLATION) Tor. For. 3/2019 February 28, 2019 Subject : Submission of Financial Statements for the year ended 2018 and explanation on the changes of the Company’s operating performance more than

- Translation – MPIC 016/2019 May 08, 2019 Subject: Submit the Financial Statement for the quarter ended March 31, 2019 and clarification for the change of operating result more than 20% Attention