1 / 3 No.IR.003/2019 28 February 2019 Re: Notification of the changes of the Profit and Loss Statement To: President Stock Exchange of Thailand We, T Engineering Corporation Public Company Limited

1 -Translation- Ref :IR 62/023 December 23, 2019 Subject: Change in Shareholding Structure of Subsidiary Company (edit no.2 ) To: President, The Stock Exchange of Thailand T.K.S. Technologies Public

Microsoft Word - MDA Q120 EN_Hiight.docx May 11, 2020 To President The Stock Exchange of Thailand Subject Management Discussion and Analysis for the three-month period ended March 31, 2020 Taokaenoi

: Explanation of Company’s Overall Operation for the Quarter 2nd of year 2020 To: Directors and Managers The Stock Exchange Market of Thailand Rhom Bho Property Public Company Limited (“the Company”) would like

MDE03_2020_10 MAR 2020 (Translation) No. 03/2020 March 10, 2020 President The Stock Exchange of Thailand Re: Notification of the Resolution of the Board of Directors’ Meeting No. 03/2020 We, AEON

right to attend the Meeting and still be omitted a dividend payment as schedule. Attention The President of the Stock Exchange of Thailand The Stock Exchange of Thailand Eastern Technical Engineering

October 30, 2020 Subject: The Management Discussion and Analysis for the second quarter ended June 30, 2020 To: President The Stock Exchange of Thailand Well Graded Engineering Public Company Limited (“the

November 13, 2020 Subject: The Management Discussion and Analysis for the third quarter ended September 30, 2020 To: President The Stock Exchange of Thailand Well Graded Engineering Public Company Limited

Page 1 of 3 No. ACC6308/002 13 September 2020 เรื่อง Operating Results Clarification for the second quarter 2020, ended June 30 2020 เรียน Director/ Managing Director The Stock Exchange of Thailand

as from the date when the transaction disclosed to The Stock Exchange of Thailand. 4. Details of the Asset Acquired The Sole Area Development Franchise under Trademark “Wuttisak Clinic” in Eastern