Director The Stock Exchange of Thailand Pacific Pipe Public Company Limited ( “ Company” ) would like to notify the resolution of Board of directors’ meeting no.6/2019 held on 13 August 2019. The Board

-Translation- Ref. IR 62/005 March 13, 2019 Subject: transaction yDisclosure of the information regarding related part To : President, The Stock Exchange of Thailand T.K.S. Technologies Public

NEP 045-2562 12 September 2019 Subject: The Sale of the machines to connected person (Add Information) To: President The Stock Exchange of Thailand The resolution of the Board of Directors’ Meeting

Transactions Deemed as Acquisition or Disposal of Assets, dated August 31, 2008 (as amended) and the Notification of the Board of Governors of the Stock Exchange of Thailand regarding Disclosure of Information

1/5 Ref. 4/2019 January 11, 2019 Subject : The acquisition of investment in Ramkhamhaeng Hospital PCL. To : Director and Manager The Stock Exchange of Thailand The Board of Directors Meeting

Discussion and Analysis, Quarter 1 Ending 31 March 2020 (4) The Impact of the COVID-19 situation To: President of the Stock Exchange of Thailand Reference: (1) Document no. Tor. For. 4/2020 dated April 10

26 February 2020 Subject : Management Discussion and Analysis for 2019 To : Director and the President, The stock Exchange of Thailand Yggdrazil Group Public Company Limited (“Company”) would like to

ที่ กบร No. Kor Bor Ror. 032/2017 November 9, 2017 President The Stock Exchange of Thailand Re : Increase of the investment proportion in the ordinary shares of Pattaya Manufacturing Co., Ltd

would like to disclose information on the said transaction to the Stock Exchange of Thailand (“SET”) in accordance with the Acquisition or Disposal Notification as follows: 1. Date / Month / Year of the

CHANGE IN PERFORMANCE OVER 20 PERCENT FOR 3rd QUARTER 2018, COMPARED TO THE PREVIOUS YEAR ATTENTION PRESIDENT, THE STOCK EXCHANGE OF THAILAND Khon Kaen Sugar Industry Public Company Limited and its