2023 Financial Results

Business Highlights Fixed & Mobile | 5G subscribers & portion (million) 5G accounting for 58% with over-achieving 2022 subscriber target thanks to the expansion of price plan options 13.4 12.5 11.7 10.9 9.9 8.7 7.7 6.7 ■ Marketing expense (based on MNO accounting) (KRW bn) Decline of 4.8% YoY thanks to stable trend of overall marketing expenses despite higher year-end advertising expenses 3,216 3,063 798 758 762 745 58% 53% 50% 46% 42% 36% 32% 28% 1Q21 2Q21 3Q21 4Q21 1Q22 2Q22 3Q22 4Q22 1Q22 2Q22 3Q22 4Q22 2021 2022 (1,000) Pay tv subscribers (IPTV + CATV) Sustained growth of pay tv subscribers reaching 9.32 million with IPTV net add M/S No. 1 position maintained (1,000) ■ Broadband subscribers Continued growth trend of subscribers and higher portion of broadband subscribers with Giga subscriber conversion 9,250 9,323 9,094 9,167 6,704 6,669 9,000 8,913 8,806 6,539 6,560 6,580 6,608 6,633 6,508 8,686 1Q21 2Q21 3Q21 4Q21 1Q22 2Q22 3Q22 4Q22 1Q21 2Q21 3Q21 4Q21 1Q22 2Q22 3Q22 4Q22 8

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