2H16 and 1H17. In summary, net cash decrease in 2017 was Bt576mn, resulting in an outstanding cash of Bt10,650mn. 5 2017 MD&A Advanced Info Service Plc. Income statement (Bt mn) 4Q16 3Q17 4Q17 %YoY %QoQ

1 1. ANALYSIS OF FINANCIAL PERFORMANCE Income statement (MB) Q4/2016 Q4/2017 YoY % 2016 2017 YoY % Total Sales and Services revenue 1,043.98 1,039.90 (4.09) (0.39%) 4,376.96 4,308.04 (68.92) (1.57

Subsidiary (together referred to as “Corporate Group”) would like to clarify on the operating results according to the consolidated financial statements of Year 2017 for the year ended December 31, 2017 as

of the period was Bt20,498mn. 4 1Q19 MD&A Advanced Info Service Plc. Income statement (Bt mn) Pre-TFRS 15 Post-TFRS 15 1Q19 Deviation from Pre-TFRS 15 1Q18 4Q18 1Q19 %YoY %QoQ Mobile revenue1) 31,208

Products Public Company Limited and its Subsidiary (together referred to as “Corporate Group”) would like to clarify on the operating results according to the consolidated financial statements for the 1st

be recorded as finance costs in the Statement of Income. Loans are repaid in installments upon unit transfer. Management Discussion and Analysis ( - translation - ) For operating result of 2Q19, ended

Company Limited and its Subsidiary (together referred to as “Corporate Group”) would like to clarify on the operating results according to the consolidated financial statements for the 1st quarter ending

Diamond Building Products Public Company Limited and its Subsidiary (together referred to as “Corporate Group”) would like to clarify on the operating results according to the consolidated financial

assets of the Company and its 2 subsidiaries amounts to 5.38 percent of the total assets of the Company and its subsidiaries, according to the consolidated financial statements of the Company, which were

Service Plc. Income statement (Bt mn) 3Q17 2Q18 3Q18 %YoY %QoQ 9M17 9M18 %YoY Mobile revenue 30,937 31,203 30,862 -0.2% -1.1% 91,963 93,237 1.4% Fixed broadband revenue 886 1,094 1,117 26% 2.1% 2,172 3,224