group of legal entities having relationship in respect of shareholding structure, whereby all legal entities in such group have relationship with each other as parent company or subsidiary company, or

ไฮโดรเท็ค จํากดั (Translation) No. 024/0461 April 4, 2018 Subject Notification of the Board of Directors No.6/2018 Re: Convening the Extraordinary Shareholders’ Meeting No.1/2018; an Acquisition of

(Translation) No. 10000000/008/62 22 January 2019 Subject: Resolutions of the Board of Directors’ Meeting regarding the investment in the Energy Recovery Unit Project through the acquisition of the

significant resolutions of the Board of Directors’ Meeting of the Company No. 6/2019, held on October 30, 2019, at 14.30 p.m., as follows: 1. Approved to propose to the Extraordinary General Meeting of

257.35 100.00% 353.79 100.00% (96.44) -27.26% Revenue from transmission and telecommunication tower Q1 For Quarter 1 Year 2020 (Million Baht) Revenue structure + (-) 3 | MANAGEMENT DISCUSSION AND ANALYSIS

reference. Notification of the Capital Market Supervisory Board No. Tor Jor. 12/2558 Re: Offering of Units of Infrastructure Trusts ___________________ By virtue of Section 16/6 of the Securities and Exchange

August 2019 Subject: Notification of Resolutions of the Board of Directors’ Meeting No. 9/2019 on Disposal of Assets and Execution of Connected Transactions on Disposal of Investment in SUT Global Co., Ltd

of the Capital Market Supervisory Board No. TorNor. 27/2552 Re: Rules, Conditions, and Procedures for Establishment and Management of Funds dated 20 July 2009, the Office of the Securities and Exchange

) and Clause 20 of the Capital Market Supervisory Board No. TorNor. 27/2552 Re: Rules, Conditions, and Procedures for Establishment and Management of Funds dated 20 July 2009, the Office of the Securities

(Enclosure 4) 1 (-Translation-) Information Memorandum on the Connected Transaction and Asset Acquisition of Master Ad Public Company Limited pursuant to Schedule 2 of the Notification of the Board