Summary of operations and the factors that make a significant change Summary of Operations for the Year 2020 Topic Annual Balance Change 2020 2019 2020 VS 2029 (MB) (MB) % Total Revenue 6,731.0 7,073.7

growth remained strong with 480k additional sub in 1Q21 driven by iPhone12 launch. Total 5G subscribers reached 719k or 6.8% of postpaid subs as of end 1Q21, while AIS is on track to 5G subscriber target

to deliver a superior customer experience. Our effort to drive 5G adoption drove 5G subscribers to 3.9mn or 8.6% of total subscribers with the ARPU uplift of around 10-15%. Broadband and Enterprise

the sale of investment in Genesis Data Center Co., Ltd. for 108.6 million baht in the financial statements in which equity method is applied. -2- The total operating expenses in 2022 decreased from 2021

and effective manner in line with their budget and development plans. Classification: Internal 1Q23 MD&A Advanced Info Service Plc. 2 The total mobile subscribers increased by 108k or 0.2% QoQ and

consolidated financial statements of Q1/2024 compared to the same period of the year 2023, is as follows: Total Revenue amounted to THB 3,568.38 million increased by 3.23% Gross Profit amounted to THB 334.25

construction phases for eight projects with a total value of Baht 171 billion. In addition, the government pushed forward its policies to help the grass roots, such as the “Public-Private Collaboration” scheme

and Analysis EXECUTIVE SUMMARY SIGNIFICANT EVENTS Commercial operation of ABPR3 From a total of three SPP power plants in Amata City Industrial Estate that have scheduled COD in 2018, ABPR3 is the first

total voting shares; (23) foreign investor having characteristics similar to the investors under (1) to (22); (24) fund manager or derivatives fund manager in accordance with the Notification of the

person in the category of statutory corporation; (22) juristic person whose shares are held by the investors under (1) to (21), in aggregate, exceeding seventy-five percent of the total voting shares; (23