The Stock Exchange of Thailand The Meeting of Board of Directors of WHA Utilities and Power Public Company Limited (“Company”) No. 8/2017 on 29 September 2017 passed a resolution approving the Company

., the subsidiary of the Company, and change in the accounting policy regarding the record of the land appraisal To: President The Stock Exchange of Thailand Attachment: Information Memorandum on the Asset

Exchange of Thailand CH. Karnchang Public Company Limited hereby informs the resolutions of the Board of Directors’ Meeting No. 1/2019 which was held on February 28, 2019 as follows: 1. Resolved to approve

the Stock Exchange of Thailand CH. Karnchang Public Company Limited hereby informs the resolutions of the Board of Directors’ Meeting No. 1/2019 which was held on February 28, 2019 as follows: 1

than 49,260,075 shares with a par value of PHP 100 or equivalent to THB 69.57 (according to the exchange rate at PHP/Baht = 0.6957 pursuant to the announcement of the Bank of Thailand on March 31, 2017

9 9. Source of Investment Capital The source of funding for the acquisition of ordinary shares of COMASS will come from the Company’s working capital and loan granted from a financial institution. In

.... (Unofficial Translation) 11 Readers should be aware that only the original Thai text has legal force and that this English translation is strictly for reference. The SEC, Thailand can neither

.... (UNOFFICIAL TRANSLATION) Readers should be aware that only the original Thai text has legal force and that this English translation is strictly for reference. The SEC, Thailand can neither

reference. The SEC, Thailand can neither undertake any responsibility for its accuracy, nor be held liable for any loss or damages arising from or related to its use

Exchange of Thailand (www.set.or.th) The top 10 shareholders of PTT Global Chemical Public Company Limited as at 6 March 2019 are as follows: Name Number of shares Percentage of Issued shares and voting