continued to have presence as strong brands in the market. Implemented company-wide cost optimization With low growth market, AIS has been focusing on optimizing and digitizing the core operation including
3Q22, the cost of service was at Bt21,863mn, increased 2.0% YoY and 1.1% QoQ mainly from the increase in network OPEX due to rising of utility cost. • Regulatory fee was at Bt1,380mn, increased 1.9% YoY
up. As a result, core service revenue in 3Q18, which excluded IC and equipment rental, was Bt33,134mn, increasing 2. 1% YoY but decreasing 0. 9% QoQ. EBITDA remained growth YoY but softened QoQ Cost
enterprise customers. The revenue softened -6.9% QoQ from the large project sales during 4Q22. EBITDA rebounded YoY from growth in core businesses and cost optimization discipline 1Q23 recorded an EBITDA of
amounted to around Bt800mn in 1H18. Cost of service (Bt36,483mn) increased 11% YoY due to payment of partnership with TOT and higher D&A, offset by lower regulatory fee. Excluding payment to TOT, network
handset campaign and the newly launched iPhone 11. Cost & Expense In 2019, Cost of service was Bt81,487mn, increasing 6.2% YoY, due to network expansion. Regulatory fee was Bt5,792mn, increased 1.2% YoY
, following continuation in handset-bundled campaigns. Cost & Expense In 2Q19, cost of service was Bt20,170mn increasing 5% YoY and 1.8% QoQ following 4G network investment. Regulatory fee was Bt1,462mn
& Expense Cost of service in 2Q21 was Bt21,012mn, increasing 3.0%YoY mainly from higher amortization but decreasing 0.5%QoQ. Regulatory fee was Bt1,347mn, increasing 5.2%YoY from one-time USO fee reduction