. OCMSET/1907/003 July 30, 2019 Subject: Clarification of the operating results for the six-month period of 2019, change of rate more than 20% Dear: Director and Manager the Stock Exchange of Thailand

  ex slightly decli ere Bt1,668mn om cost of conte 701mn  increas bad debt. QoQ, admin expenses re  Bt2,869mn  . In 2Q17, AIS c stpaid  segment Advan pared to 2.3% in 0mn decreasin e change since J 7

: Million Baht Quarter 2 Change Increase (Decrease) 2017 2016 Amount % Electricity revenue 2,816 2,700 116 4% Other income - - - - Total revenues 2,816 2,700 116 4% Cost of sale (1,439) (1,378) 61 4% Other

Baht Quarter 1 Change Increase (Decrease) 2019 2018 Amount % Electricity revenue 2,660 2,068 592 29% Other income 1 - 1 100% Total revenues 2,661 2,068 593 29% Cost of sale (1,629) (1,282) 347 27% Other

million decreased by Baht 303.39 million, or 16.42% from the previous year, mainly from the decrease of branches from 106 branches to 97 branches. 2. The Company’ s cost of goods sold in the year 2018 were

price that decreased due to the global economic slowdown as a result of trade protection measures between China and the United States. - The company has cost of sales of 616.03 million baht or 84.14% of

% Gas cost Baht/mmBtu 251.99 235.45 -6.6% 2.2) Cost structure 6M'2016 6M'2017 % change million Baht % million Baht % % Cost of sales and services Natural gas 8,166 72% 9,040 70% 10.7% Cost of electricity

purchase the Company’ s ordinary shares No. 3 ( the “U-W3 Warrants” ) at no cost, totaling Baht 2,172 million; and (b) accepting the assignment of all of UE’s loan owed to BTSG, together with interest

the Company in Q2/2022 Q2/22 Q2/23 Change +/(-) 1H/22 1H/23 Change +/(-) (THB million) %YoY %YoY Operating Revenue 230 299 30% 428 563 32% Cost of Sales (83) (107) 29% (161) (202) 25% Gross Profit 147

would be affected. In this regard, the Company will apply negotiation and cost management to reduce the damages caused by the incapability of generating returns as estimated as well as to adjust the sales