Attn : The Directors and The MAI Manager Ref: Dimet AC 1902/001 February 12, 2019 Attention: The Directors and The MAI Manager The Stock Exchange of Thailand Subject: Report on Q.2’s performance

Attn : The Directors and The MAI Manager Ref: Dimet ACC 1711/001 November 9, 2017 Attention: The Directors and The MAI Manager The Stock Exchange of Thailand Subject: Report on Q1’s performance Dear

Attn : The Directors and The MAI Manager Ref: Dimet AC 1802/001 February 13, 2018 Attention: The Directors and The MAI Manager The Stock Exchange of Thailand Subject: Report on improved Q.2’s

Attn : The Directors and The MAI Manager Ref: Dimet AC 1905/001 May 13, 2019 Attention: The Directors and The MAI Manager The Stock Exchange of Thailand Subject: Report on Q.3’s performance (January

Attn : The Directors and The MAI Manager Ref: Dimet AC 0818/1 August 27, 2018 Attention: The Directors and The MAI Manager The Stock Exchange of Thailand Subject: Year End result and clarification of

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Inform the Board Resolution to register a subsidiary company in SET - Translation - UAC.CS/006/2018 March 23, 2018 Subject: Plan to spin-off Subsidiary Company to be listed in mai To: The President

qualification and prohibited characteristics of director and executive of securities company; “manager of infrastructure fund” means infrastructure fund manager and fund manager; “infrastructure fund” means

Commission Re: Guidelines for Application and Approval for Appointment of Person to be Director or Manager of Securities Company B.E. 2553 (2010) _________ Whereas the first paragraph of Section 104 of the