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 AC 0817/1 August 30, 2017 Attention: The Directors and The MAI Manager The Stock Exchange of Thailand Subject: Year End result and clarification of

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

Attn : The Directors and The MAI Manager Ref: Dimet AC 1811/001 November 13, 2018 Attention: The Directors and The MAI Manager The Stock Exchange of Thailand Subject: Report on Q.1’s performance

Attn : The Directors and The MAI Manager Ref: DIMET AC 1911/001 November 14, 2019 Attention: The Directors and The MAI Manager The Stock Exchange of Thailand Subject: Report on Q.1’s performance

Attn : The Directors and The MAI Manager Ref: Dimet AC 2006/001 June 16, 2020 Attention: The Directors and The MAI Manager The Stock Exchange of Thailand Subject: Report on Q.3’s performance (January

amounting to Baht 50.5 million mainly due to losses from exclusive mobile phone project. Revenue from Thailand Mobile Expo for the year 2018 is Baht 119 million, the highest revenue since the Company was