subsidiaries have contract revenues for Q3/2017 162 Million Baht which is decrease of 39 Million Baht (19%) from Q3/2016 contract revenues. Q3/2017’s net profit of 5 Million Baht represents increasing of 4

subsidiaries have contract revenues for the year 2017 amount 779 Million Baht which is decrease of 157 Million Baht (17%) from 2016 contract revenues. 2017’s net profit of 13 Million Baht represents decreasing

and its subsidiaries have contract revenues for Q1/2019 amount 220 Million Baht which is increase of 93 Million Baht (73%) from Q1/2018 contract revenues. Q1/2019’s net loss of 67 Million Baht

; Unimit and its subsidiaries have contract revenues for Q1/2019 amount 220 Million Baht which is increase of 93 Million Baht (73%) from Q1/2018 contract revenues. Q1/2019’s net loss of 67 Million Baht

) (1,773) (2,327) 13% 31% (6,135) (7,164) 17% Exploration and evaluation expense (12) (12) (11) -10% -6% (60) (48) -20% Gain (loss) from crude and product oil price hedging contract (66) 86 46 169% -47% 107

or 26.04% due to following reasons: 1. Revenue increase from electrical engineering; some project signed contract in 2017. 2. Revenue increase from telecommunication engineering; started new project in

account, a contract or any other agreement, in accordance with Clause 44 of the Notification on Standard Conduct of Business , the intermediary shall arrange such agreement in compliance with the

trading account, a contract or any other agreement, in accordance with Clause 44 of the Notification on Standard Conduct of Business, the intermediary shall arrange such agreement in compliance with the

position shall be disclosed. 8. A description of the material effects of government regulations on the issuer's business, identifying the regulatory body. C. Organizational Structure 1. If the issuer is part

1 1Q21 MD&A Advanced Info Service Plc. Executive Summary Mobile revenue slightly recovered QoQ following strong acquisition and government stimulus In late 4Q20, the new phase of outbreak had re