Investor Presentation 2021

Differentiated Through Quality 10 4G Mobile Download Speed (Mbps) (Mbps) 88.2 72.8 78.2 51.4 61.8 66.2 37.9 Ookla ■■Q1-Q2 2019 Q3-Q4 2019 Q1-Q2 2020 Q3-Q4 2020 4G Mobile Upload Speed (Mbps) (Mbps) ■ Q1 2020 106.2 Meqyas Q2 2020 ■Q3 2020 ■Q4 2020 20.0 21.5 22.0 17.0 20.8 20.2 21.0 22.8 Ookla ■Q1-Q2 2019 Q3-Q4 2019 Q1-Q2 2020 Q3-Q4 2020 Meqyas ■ Q1 2020 ■ Q2 2020 ■ Q3 2020 ■ Q4 2020 Investor Presentation 2021 | stc group sic

View entire presentation