2- and 3-Carrier Aggregation (CA) technology. During the quarter, the competition focused on acquiring/maintaining quality customers in postpaid segment through handset campaigns and pricing strategy

Summary of operations and the factors that make a significant change Summary of Operations for the Year 2018 Topic Annual Balance Change 2018 2017 2018 VS 2017 (MB) (MB) % Total Revenue 4,237.6 5,397.2

revenue, AIS continued to invest for network quality and capacity through deployment of additional bandwidth recently acquired while coverage expansion mostly done the year earlier, resulted in lower capex

. AIS focused on quality customer acquisition with 5G packages while enhancing customer experience and providing various benefits in collaboration with strategic partners. However, the revenue declined

Operating Results of the Company in Q3/2020 Q3/18 Q3/20 (THB million) YoY Operating Revenue 219 179 (18%) Gross Profit 137 105 (23%) EBITDA 58 57 (2%) Net Profit for the Company 13 12 (8%) Gross profit margin

quarter of 2019. Details are as follows: 2nd quarter 6 months Total revenue was THB 846.19 million, a decrease of THB 203.57 million or -19.4%. The main businesses of the Company and its subsidiaries were

THB 90.67 million, decreased for THB 110.16 million or 54.85% comparing to the fiscal year 2013 which the realized net profited was THB 200.83 million, for the following reasons; Revenue. The company

3Q21 MD&A Advanced Info Service Plc. Executive Summary Slight revenue improvement despite COVID restriction measures and continued competition During 3Q21, the economy remained subdue from COVID

around 10-15%. • Fixed broadband revenue was at Bt2,857mn, increasing 15% YoY and 5.4% QoQ following content bundling strategy and upselling value packages which resulted in the ARPU recovery. AIS focused

Discussion & Analysis Q4/2021 Operating Highlights in Q4/2021 Q4/20 Q4/21 Change +/(-) 2020 2021 Change +/(-) (THB million) %YoY %YoY Operating Revenue 207 188 (9%) 768 620 (19%) Gross Profit 127 112 (12%) 468