, stakeholder relations and organizational efficiency, specifically in the areas of human resources development, information management and financial administration.  In addition, the SEC is playing a more

postpaid segment. This has resulted in a reduction of %marketing expenses to total revenue from 11% in 2016 to 6.3% in 2017. • General admin expenses were Bt12,424mn increasing 5.2% YoY due to higher staff

administrative expenses in Q1, Q2 and Q3/2019 compared to the same period last year, due to the higher back office salary expenses from business expansion. • Admin expenses to total revenue in 9M/2019 was 13.4

% from Q2/2018 mainly due to an increase in salary expenses in the back office. • Admin expenses to total revenue in Q2/2019 was 13.0% which improved by 5.7% from Q2/2018 due to higher revenue growth while

7.3% in 2Q17 and 5.5% in 1Q18. • Admin and other expenses were Bt4,037mn, increasing 5.4% YoY from higher staff cost but decreasing 1.2% QoQ. Net FX gain was Bt106mn, compared to Bt12mn in 2Q17 and a

/2019 mainly due to the decrease in salary expenses of the back-office employee as a result of the leave-without-pay policy. • Admin expenses to total revenue in Q2/2020 was 21.5% which increased by 8.5

and the reduction of the central operating costs. • Admin expenses to total revenue in 9M/2020 was 19.3% which improved by 5.9% from 9M/2019 due to the higher proportion of the decrease in revenue from

implementation of leave without pay policy which was effective since Q2/2020. • Admin expenses to total revenue in 2020 was 19.1%, improved by 5.6% from 2019 due to the higher proportion of the decrease in revenue

.  Marketing expenses were Bt1,642mn, decreasing -6.8%YoY and -2.5%QoQ from lower marketing campaign and activities following cost saving measures.  Admin & other expenses were Bt3,852mn, decreasing -15%YoY due

lower marketing campaigns and high- seasonal spending in 4Q21. • Admin & other expenses were Bt4,046mn, increasing 5.1%YoY mainly from higher staff cost, whereas declined -1.2% QoQ due to some seasonal