from Sales & Service 1,006.7 968.6 1,572.9 38.1 3.9 (566.2) (36.0) Revenue from Rental equipment 32.8 41.2 44.9 (8.4) (20.4) (12.1) (27.0) Cost of Sales & Service 819.3 790.1 1,300.3 29.2 3.7 (481.0

1 2Q18 MD&A Advanced Info Service Plc. Executive Summary AIS continued to deliver revenue growth in all segments. In 2Q18, core service revenue, which excluded IC and equipment rental, was Bt33,464mn

(excluding equipment rental) 46.2% 45-47% Cash CAPEX Bt16,513mn Approximately Bt25,000mn 5 3Q18 MD&A Advanced Info Service Plc. Source and Use of Fund: 9M18 (Bt mn) Source of fund Use of fund Operating cash

sales growth -0.6% YoY Decline SIM and device sales margin -1.1% Near zero EBITDA margin (excluding equipment rental) 46.9% 45-47% CAPEX Bt6,467mn Bt35,000-38,000mn 5 1Q18 MD&A Advanced Info Service Plc

) • Communication and control (including advanced software and control rooms, automation of substations or feeders, and voltage control capabilities to adapt to more decentralised renewable infeed) • Equipment to

to deliver in Q3-2021, such as the project of selling Advanced Service for Hybrid CSOC systems, the project of selling computer network equipment for supporting Cloud for Critical Information

Baht: MB) (MB) % (MB) % Revenue from Sales, Service and Construction contracts 1,222.5 1,066.8 1,000.5 155.7 14.6 222.0 22.2 Revenue from Rental income from equipment for lease 27.3 27.2 40.0 0.1 0.4

by Quarter Change Q2–18 Q4–17 Q2–18 VS Q4–17 (MB) (MB) % Inventories 224.4 305.8 (81.4) (26.6) Investments in joint ventures 85.0 102.6 (17.6) (17.2) Equipment for lease 116.3 149.3 (33.0) (22.1) Total

1 FY18 MD&A Advanced Info Service Plc. Executive Summary Maintained leadership in mobile business In FY18 competition in mobile industry remained elevated particularly on data pricing with fixed

1 3Q19 MD&A Advanced Info Service Plc. Executive Summary Mobile revenue driven by postpaid price adjustment In 3Q19, the postpaid segment continued its growth as we continued to adjust postpaid price