., and Schedule for the EGM of Shareholders No. 1/2019 (Revised3) To: The President The Stock Exchange of Thailand Enclosure: 1. Information Memorandum of Hydrotek Public Company Limited on Disposal of

carriers within Europe at 7.1 and 6.5 percent respectively (Source: International Air Transport Association). Tourism industry in Thailand, the number of international tourists visited Thailand was growing

and the Notification of the Board of Governors of the Stock Exchange of Thailand (SET), entitled Disclosure of Information and Other Acts of Listed Companies concerning the Connected Transaction, B.E

- Translation - Page 1 of 6 CBG 052/2017 14 November 2017 Subject Management discussions and analysis for the 3-month and 9-month periods ending 30 September 2017 To President The Stock Exchange of

- Pacific remains at the top with a growth of 8.4 percent following by 6.5 and 6.2 percent in Middle-East and European carriers. (Source: International Air Transport Association) Tourism industry in Thailand

Ref. No. IVL 003/02/2019 26 February 2019 The President The Stock Exchange of Thailand Subject: Submission of Annual Audited Financial Statements and the Management Discussion and Analysis of

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

คำอธิบายและการวิเคราะห์ของฝ่ายจัดการ 10 November 2017 Re: To clarify the financial statements as of 30 September 2017 To: President The Stock Exchange of Thailand WHA Corporation Public Company

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 Transaction After

Ref. DBP. 153 / 2019 November 11, 2019 Subject : Clarification on Operating Results for the 3rd quarter and 9-month Period ending September 30, 2019 To : President The Stock Exchange of Thailand