#1Investor Briefing Annual Earnings for FY2022 2023.2.8. SK telecom#2Disclaimer This presentation contains forward-looking statements with respect to the financial condition, results of operations, and business of SK Telecom (the "Company", or "SKT") and its subsidiaries, and plans and objectives of the management of the Company. The forward-looking statements are influenced by unknown risks, uncertainties, and other factors that may change the actual results or performance of the Company. The Company does not make any representation or warranty, expressed or implied, as to the accuracy or completeness of the information contained in this management presentation, and nothing contained herein is, or shall be relied upon as a promise or representation, whether as to the past or the future. Therefore, this presentation contained herein should not be utilized for any legal purposes regarding investors' investment results. The Company hereby expressly disclaims any liability for any loss or damage resulting from investors' reliance on the information contained herein. This presentation only speaks the information as of the date they are made, and the Company undertakes no obligation to update publicly any of them in light of new information or future events. The presentation also includes estimated financial and operational results prepared under K-IFRS without external audit, and some numbers are subject to change after a full audit.#32022 Financial Results Business Highlights Shareholder Return Appendix 2 SK telecom#42022 Financial Results Consolidated Solid growth thanks to 5G subscriber growth of SKT and growth of pay tv subscribers and B2B revenue of SKB Consolidated Income Statement Key Metrics (KRW bn) Operating 2022 2021 YOY 4Q22 4Q21 YoY OP & margin 17,305 16,749 3.3% 4,394 4,295 2.3% revenue - SKT 12,415 12,103 2.6% 3,096 3,073 0.7% 460 466 (KRW bn) 1,612 1,387 - SKB 4,156 4,049 2.6% 1,053 1,061 A0.7% 432 Operating 15,693 15,361 2.2% 4,140 4,071 1.7% expenses Operating 1,612 1,387 16.2% 254 224 13.5% 254 income 10.7% 10.7% 10.1% - SKT 1,321 1,114 18.6% 195 159 22.3% - SKB 306 276 10.9% 72 57 25.1% 9.3% 8.3% 5.8% Net income 948 2,419 A60.8% 224 315 A28.9% EBITDA 5,367 5,207 3.1% 1,189 1,187 0.2% 1Q22 2Q22 3Q22 4Q22 2021 2022 CAPEX 3,035 3,001 1.1% 1,492 1,422 4.9% EBITDA & margin Consolidated revenue of KRW 17.3tn, up 3.3% YoY Top-line growth thanks to 5G & IPTV subscriber growth and B2B revenue growth Consolidated operating income of KRW 1.6tn, up 16.2% YoY •Improved profitability on the back of top-line growth of profitable fixed and mobile business, reduced market competition, and efforts for cost efficiency 1,379 1,400 1,399 (KRW bn) 5,367 5,207 1,189 O Consolidated net income fell 60.8% YoY to KRW 947.8bn 32.2% 32.6% 32.2% 31.1% • Net income fell 25.4% YoY when excluding discontinued operating income due to the spin-off 31.0% Consolidated CAPEX of KRW 3tn executed 27.1% 1Q22 2Q22 3Q22 4Q22 2021 2022 4#52022 Financial Results Non-consolidated Profitability improved thanks to solid MNO revenue growth and stabilization of marketing and depreciation costs Non-consolidated Income Statement Key Metrics (KRW bn) Operating revenue 2022 2021 YOY 4Q22 4Q21 YoY OP & margin 12,415 12,103 2.6% 3,096 3,073 0.8% - MNO 10,463 10,257 2.0% 2,634 2,590 1.7% (KRW bn) 1,321 1,114 - Other 1,952 1,846 5.8% 462 483 A4.4% 381 389 Operating 357 11,093 10,989 1.0% 2,902 2,914 A0.4% expenses - Marketing 3,063 3,216 A4.8% 798 813 A1.8% expense 195 10.6% - Depreciation 1) 2,828 2,914 A3.0% 705 728 A3.2% Operating 1,321 1,114 18.6% 195 159 22.3% 11.6% 12.2% 12.4% income 9.2% Net income 869 1,074 ▲ 19.0% 88 265 A66.9% 6.3% EBITDA 4,149 CAPEX 2,215 4,029 2,179 3.0% 899 887 1.4% 1Q22 2Q22 3Q22 4Q22 2021 2022 1.7% 1,091 1,026 6.3% 1) R&D related depreciation and amortization included EBITDA & margin • MNO revenue up 2% thanks to 5G subscriber growth and roaming revenue recovery O Non-consolidated revenue of KRW 12.4tn, up 2.6% YoY • Top-line growth of solutions and products T universe (KRW bn) 4,149 4,029 • Non-consolidated operating income of KRW 1.3tn, up 18.6% YoY 1,070 1,085 1,094 • Profitability up 1.4%p thanks to stable marketing and depreciation costs despite increase in fees content, outsourcing, etc. 899 for new service expansion Non-consolidated net income of KRW 869.5bn, down 19% YoY • Base effect due to last year's asset sale Wyverns ● Non-consolidated CAPEX of KRW 2.2tn executed 33.4% 34.8% 34.8% 35.0% 33.3% 29.0% 1Q22 2Q22 3Q22 4Q22 2021 2022 LO 5#62022 Financial Results SK Broadband Top-line, EBITDA and operating income improved YoY on the back of solid growth of pay tv subscriber base and strong B2B business Consolidated Income Statement Key Metrics (KRW bn) Operating 2022 2021 YOY 4Q22 4Q21 YoY OP & margin 4,156 4,049 2.6% 1,053 1,061 A0.7% revenue - Pay tv 1,883 1,836 2.6% 468 463 1.1% 76 78 00 - Fixed line 1,044 1,058 A1.3% 272 296 A8.3% (KRW bn) 306 276 80 72 - B2B business 1,230 1,155 6.4% 314 301 4.1% Operating 3,851 3,774 2.0% 982 1,003 A2.2% expenses 7.4% Operating 306 276 10.9% 72 57 25.1% 7.4% 7.6% 7.6% 6.8% income 6.8% Net income 217 198 9.6% 58 35 65.3% EBITDA 1,276 1,221 4.5% 314 302 4.1% 1Q22 2Q22 3Q22 4Q22 2021 2022 CAPEX 820 823 Δ0.3% 401 397 1.0% O SKB consolidated revenue of KRW 4.2tn, up 2.6% YoY •Pay tv revenue growth with IPTV subscriber growth and content sales growth EBITDA & margin (KRW bn) 1,276 1,221 • Continued growth of B2B business with more new orders and higher Data Center utilization rates 321 320 320 314 SKB consolidated operating income of KRW 305.7bn, up 10.9% YoY • Revenue growth and expansion of profitable B2B business ● SKB consolidated net income was up 9.6% YoY on the back of higher operating income SKB CAPEX of KRW 0.8tn executed о- 31.3% 31.0% 30.7% 30.2% 30.7% 29.9% 1Q22 2Q22 3Q22 4Q22 2021 2022 6#72023 Financial Results Business Highlights Shareholder Return Appendix 2 ם SK telecom#8Business 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#9Business Highlights Media revenue (KRW bn) PPM* subscribers 20.8%, 1,537 403 1,273 395 382 357 Media (1,000) 5.2% 1,444 1,442 1,444 1,373 1,367 1,322 1Q22 2Q22 3Q22 4Q22 2021 2022 1Q22 2Q22 3Q22 4Q22 2021 2022 *Pay Per Month Q4 Media revenue of KRW 403.2bn, up 23.3% YoY Overall expansion of the value chain in content, ad, and T commerce that utilize fixed and mobile subscriber base Subscriber turnaround and revenue growth thanks to content supply improvement • Supply of new films and improved supply from distributors thanks to eased COVID-19 restrictions and theater re-opening SK Stoa maintained growth momentum in commerce with historic high revenue recorded in 2022 SK Stoa revenue 00 90 86 80 74 (KRW bn) 4.1% 329 316 1Q22 2Q22 3Q22 4Q22 2021 2022 9#10Business Highlights Enterprise revenue (KRW bn) Data Center revenue 12.5% 1,509 392 1,341 380 372 365 Enterprise (KRW bn) 31.8% 156 118 40 42 36 37 1Q22 2Q22 3Q22 4Q22 2021 2022 1Q22 2Q22 3Q22 4Q22 2021 2022 Q4 Enterprise revenue of KRW 391.8bn, up 9.7% YoY • Continuous scale-up with higher utilization rates of Gasan and Shiksa Data Centers and Cloud traffic growth 2022 annual revenue of KRW 1.5tn, up 12.5% YoY • Sustained structural growth of Cloud and Data Center business • Structural growth of Enterprise business expected to continue in 2023 with additional margin uptake expected through cost optimization and operational efficiency enhancement Cloud revenue (KRW bn) 100% 127 42 31 64 28 26 1Q22 2Q22 3Q22 4Q22 2021 2022 10#11Business Highlights Subscription GMV 120 140 150 155 (KRW bn) 1Q22 2Q22 3Q22 4Q22 ifland MAU 1.4 14 1.6 2.6 (million) 3.7 Subscription subscribers (T universe) 1.0 10 1.2 12 1.4 AIVERSE 1.6+ (million) 1Q22 2Q22 3Q22 4Q22 ■ ifland cumulative downloads 12.0 8.7 5.5 21.3 (million) 1Q22 2Q22 3Q22 4Q22 1Q22 2Q22 3Q22 4Q22 11#12Business Highlights Evolution of A. (A dot) Service advancement using long-term memory and multi-modal technologies based on the world's first Korean GPT-3 commercialization technology Evolution to the next Internet browser through Conversational Ul by strengthening conversational language models | A. A. Service history Service advancement 1 Long-term memory technology Store key information during interaction and use it for next conversation 1 World's first B2C commercial services using Korean GPT-3 technology May 2022 2 Service scope expansion through 9 updates A.tv A.game A.photo 3 Collaboration with leading domestic and foreign players KONAN TECHNOLOGY EMOLOCO 2 Multi-modal technology Comprehensive inference from voice, image, gesture, etc. 3 Strengthen conversational language models Both in-house development and domestic and foreign partnerships (including ChatGPT) Next internet browser Al Browser Super large Personali Search & language -zation Suggest model engine Dialogue-based Context-driven offering Conservational search customer understanding Commerce Info / News Game Edu Media Personalized Personalized My own agent, A. 'Your own Al' connects you to diverse services based on CUI 12#13Business Highlights UAM business strategy Preparing to be the first to commercialize UAM in Korea in 2025 and planning to build systems and capabilities to take the initiative in UAM starting from this year Exclusive partnership with Joby Aviation Strategic partnership formed Feb. 2022 Play a key role in terms of aircraft supply and cooperation for operational expertise The most superior technology • Fastest speed 330km/h and longest flight record 249Km/1h 17m • Fastest aircraft certification process under way Why SKT? UAM business roadmap 2022 2023 2030 1st phase government demonstration project started 1st phase government demonstration In an open land (Goheung in Jeonnam) Prepare for Korea's first commercial UAM Detailed discussion with Joby Aviation Prepare to secure key capabilities and administrative requirements 2nd phase government demonstration In an urban area (Metropolitan area) Local government demonstration projects start Launch of commercial service Expansion of commercial UAM service 2024 Leadership as No.1 MNO operator • Require advanced telecommunication networks and service platform operation capabilities Provide Al-based mobility service and connect with MaaS Mobility as a service platform 2025 • A dream team formed with best industry partners Consortium with Hanwha System, Korea Airports Corporation, Korea Transport Institute, Korea Meteorological Institute that possess core expertise in their respective areas Exclusive partnership with Joby Aviation, world's No.1 UAM aircraft company 13#142023 Financial Results Business Highlights Shareholder Return Appendix 2 ם SK telecom#15Shareholder Return With Q4 DPS determined at KRW 830, the total DPS for FY2022 stands at KRW 3,320, up 66% compared to the level in FY2020 before the spin-off Recent dividend trend 2021 2022 Category 2020 1Q 2Q 3Q 4Q Total 1Q 2Q 3Q 4Q Total Total dividend 715.1 177.9 177.9 361.2 717.0 180.9 181.0 181.0 181.0 723.8 (KRW bn) DPS 1) (KRW) 2,000 500 500 1,660 3,2952) 830 830 830 830 3,320 Dividend yield 3) 4.1% 0.8% 0.8% 2.7% 5.7% 1.4% 1.5% 1.6% 1.7% 6.8% 1) Based on the number of shares after stock split (5:1) 2) Total dividend payouts for 2021 divided by the total outstanding shares as of the end of 2021 3) Dividend yield is the ratio between the DPS and the arithmetic mean of the share prices for one week that ends two trading days before the dividend record date 15#162023 Financial Results Business Highlights Shareholder Return Appendix 2 SK telecom#17Appendix Consolidated Income Statement Financial Statements - Consolidated (KRW bn) 1Q21 2Q21 3Q21 4Q21 2021 1Q22 2Q22 3Q22 4Q22 2022 (KRW bn) Operating revenue Operating expenses Labor cost 581.0 537.7 538.7 Commissions paid 4,113.1 4,125.1 4,215.0 4,295.3 16,748.6 4,277.2 4,289.9 4,343.4 4,394.5 17,305.0 3,738.9 3,729.4 3,822.0 4,071.1 15,361.4 3,844.8 3,830.3 3,877.9 4,140.0 15,692.9 643.4 2,300.8 637.1 593.2 581.5 638.0 2,449.8 1,303.3 1,351.2 1,345.3 1,426.4 5,426.1 1,310.2 1,370.9 1,384.6 Advertising 31.1 54.7 61.2 86.4 233.4 49.2 54.9 53.6 Depreciation") 944.0 949.2 964.0 962.6 3,819.8 946.3 940.7 933.5 Network 193.9 183.2 184.2 188.3 749.6 189.4 185.3 1,453.0 5,518.8 94.7 252.4 934.8 3,755.3 180.0 160.6 715.3 Current assets Cash and short-term financial instruments ¹) Accounts receivable Other current assets Non-current assets 38,896.3 PP&E and intangible assets interconnection Leased line and 74.4 72.8 77.0 frequency usage fees Cost of goods sold 279.4 247.0 310.0 Others 331.8 333.8 341.6 Operating income 374.2 395.7 EBITDA EBITDA margin Net profit or loss from non-operating items Equity gains or losses Income from continuing operations before tax Income from 112.3 181.8 (33.9) 70.8 127.7 279.6 29.4 9.6 86.0 310.1 331.1 1,167.4 347.0 1,354.2 393.0 224.2 1,387.2 1,318.2 1,344.9 1,357.0 1,186.8 5,207.0 1,378.7 1,400.3 1,399.1 1,189.3 5,367.4 32.0% 32.6% 32.2% 27.6% 31.1% 32.2% 32.6% 32.2% 27.1% 31.0% (56.8) (103.2) (110.5) (375.9) 13.6 (51.0) (5.8) (81.7) 67.6 61.1 68.9 70.8 268.4 Investment assets 307.6 267.7 304.7 388.1 1,268.1 337.3 356.6 371.0 399.9 1,464.8 Other non-current assets Total liabilities 432.4 459.6 465.6 254.5 1,612.1 Current liabilities | Consolidated Balance Sheet Total assets 3-31-21 6-30-21 9-30-21 12-31-21 3-31-22 6-30-22 9-30-22 12-31-22 47,761.5 50,057.6 51,677.5 30,911.3 30,574.7 30,648.4 30,529.8 31, 308.2 8,865.2 9,140.9 9,319.6 6,352.7 6,544.8 7,061.2 7,318.7 7,219.2 2,580.3 3,058.1 3,066.1 1,381.4 1,386.2 1,841.5 1,839.0 2,119.5 3,377.7 3,256.9 3,475.9 2,461.9 2,602.3 2,593.5 2,652.5 2,450.4 2,907.2 2,825.9 2,777.5 2,509.4 2,556.3 2,626.3 2,827.2 2,649.3 40,916.7 42,357.9 24,558.6 24,029.8 23,587.2 23,211.1 24,089.0 20,497.8 20,749.3 20,654.0 18,813.5 18,330.4 18,269.4 17,882.1 18,747.5 16,446.2 18,240.6 19,621.2 3,912.8 3,855.3 3,541.5 3,472.1 3,300.4 1,952.3 1,926.8 2,082.8 1,832.3 1,844.1 1,776.4 1,856.9 2,041.1 23,192.4 23,650.8 24,493.7 18,576.1 18,305.2 18,501.8 18,232.7 19,153.0 8,099.6 7,821.8 8,380.5 6,960.4 6,935.3 7,575.9 7,429.0 8,046.5 Short-term borrowings Accounts payable 110.0 62.3 61.5 13.0 168.0 13.0 13.0 143.0 331.0 (105.4) 446.3 (38.4) Other current liabilities Non-current liabilities Bonds payable 486.5 577.6 359.1 295.0 1,718.2 327.0 402.8 362.4 144.0 1,236.2 216.2 355.0 473.0 103.4 1,147.6 spun-off operations Consolidated 572.0 795.7 736.5 314.8 2,419.0 220.3 258.1 245.6 223.7 947.8 net income & long-term borrowings Deferred tax liabilities Other non-current liabilities 941.3 2,604.6 2,565.0 2,556.2 2,262.4 2,157.7 2,010.1 1,520.5 2,517.2 5,384.9 5,194.5 5,762.8 4,685.0 4,609.6 5,552.9 5,895.5 5,386.4 15,092.8 15,829.0 16,113.1 11,615.7 11,369.9 10,925.8 10,803.7 11,106.5 9,613.1 9,780.5 9,632.8 7,390.5 7,423.2 7,064.7 7,015.2 7,192.2 2,740.8 3,061.4 3,200.6 849.7 978.7 862.8 763.8 Majority interests 558.3 765.8 784.2 299.3 2,407.5 211.3 253.9 234.6 212.7 912.4 Minority interests 13.7 29.9 (47.7) 15.5 11.5 9.1 4.3 11.0 11.1 35.4 Basic earnings per 1,559 share (KRW) 2,142 2,194 1,296 7,191 953 1,147 1,059 959 4,118 Total shareholders' equity Common stock and additional paid in capital Retained earnings 684.9 22,875.8 2,738.8 2,987.2 3,279.8 3,283.9 2,968.0 2,998.3 2,938.8 3,150.5 24,569.1 26,406.8 27,183.8 12,335.1 12,269.5 12,146.6 12,297.1 12,155.2 2,871.1 21,679.4 2,871.3 (11,593.2) (11,529.5) (11,519.0) (11,507.7) (11,536.6) 22,307.1 22,437.3 22,297.1 22,376.7 22,457.0 22,463.7 Other comprehensive 336.5 952.9 1,090.2 735.2 738.0 500.5 556.0 391.2 * Reflecting horizontal spin-off in 2021 and minor readjustments made in 2Q22 1) Depreciation and amortization includes R&D related depreciation income/loss Minority interests 671.9 903.4 915.3 755.8 763.9 788.3 791.8 836.9 Post spin-off numbers are reflected from the date of the spin-off in 2021 1) Includes cash & cash equivalents and short-term financial instruments 17#18Appendix ■ Non-consolidated Income Statement Financial Statements - Non-consolidated (KRW bn) 1Q21 2Q21 3Q21 4Q21 2021 1Q22 2Q22 3Q22 4Q22 2022 (KRW bn) Operating revenue Mobile service revenue 2,980.7 3,021.6 3,027.4 3,073.1 12,102.8 3,077.4 3,118.2 3,122.6 3,096.3 12,414.6 Total assets 2,531.8 2,560.6 2,574.9 2,589.8 10,257.1 2,587.1 2,615.8 2,625.4 2,634.4 10,462.7 Current assets ■ Non-consolidated Balance Sheet 3-31-21 6-30-21 9-30-21 12-31-21 3-31-22 6-30-22 9-30-22 12-31-22 31,787.5 32,710.6 32,167.4 26,389.1 26,090.8 25,874.8 25,601.1 26,432.1 5,017.2 4,835.7 4,863.9 4,681.5 4,767.3 5,056.4 5,189.1 5,498.5 Interconnection 127.7 126.0 125.7 132.8 512.2 132.4 129.3 125.1 98.7 485.5 Others 321.2 335.0 326.8 350.5 Labor cost 767.9 784.3 792.8 753.3 1,333.5 357.9 373.1 372.2 363.2 1,466.4 Operating expenses 2,673.4 2,693.2 2,707.9 2,914.0 10,988.5 2,720.5 2,737.3 2,733.9 2,901.7 11,093.5 247.5 208.6 209.3 288.4 Commissions paid 1,173.4 1,201.9 1,210.9 1,231.8 Marketing commissions Other Cash and short-term financial instruments 1) Accounts receivable 589.6 599.4 575.8 537.8 503.3 740.7 764.5 1,387.3 1,975.6 2,110.2 Other current assets 953.8 291.9 237.7 214.7 248.7 993.0 Non-current assets 405.5 417.6 418.1 478.5 4,817.9 1,154.7 1,177.6 1,193.4 1,266.4 3,098.3 727.7 723.5 731.1 719.1 1,719.6 427.0 454.1 462.3 547.3 1,890.7 4,792.1 2,901.4 Investment assets commissions Other non-current assets Advertising 13.2 21.0 24.2 59.6 118.0 16.9 34.9 30.6 78.9 161.3 Total liabilities 14,507.6 Depreciation 1) 723.2 729.1 734.3 727.6 2,914.2 713.3 704.5 705.2 704.6 2,827.6 Network Current liabilities 4,963.6 141.3 137.3 137.3 145.5 561.3 144.0 140.4 134.2 114.0 532.6 interconnection Accounts payable Leased line 20.8 21.8 22.2 20.9 85.7 20.5 21.2 22.3 23.2 87.3 Frequency Other current liabilities 34.2 32.9 28.6 25.1 PP&E and intangible assets 2,082.1 2,345.5 2,260.7 2,177.8 2,116.4 2,157.3 2,267.7 2,353.5 2,258.4 26,770.2 27,875.0 27,303.6 21,707.6 21,323.5. 20,818.5 20,412.0 20,933.7 12,621.7 12,771.6 12,594.2 13,828.0 13,427.7 13,413.8 13,030.0 13,519.3 12,654.7 13,656.3 13,150.1 6,317.9 6,315.5 5,924.7 5,785.3 5,777.3 1,493.8 1,447.1 1,559.2 1,561.7 1,580.2 1,480.0 1,596.7 1,637.0 14,705.7 14,555.1 15,526.2 15,309.5 15,367.1 15,085.4 16,048.7 4,740.3 4,724.2 5,426.5 5,570.8 6,031.8 5,438.1 6,236.1 1,447.3 1,865.0 1,623.6 2,228.2 1,845.8 2,025.2 1,364.6 2,228.2 3,516.4 2,875.3 3,100.6 3,198.2 3,725.1 4,006.6 2,027.3 2,106.7 2,048.0 2,071.1 1,852.7 4,073.5 4,007.9 120.8 25.3 25.8 26.3 26.4 103.9 usage fees Others 319.8 340.6 341.2 415.2 1,416.7 353.7 395.1 407.3 439.6 1,595.6 Operating income EBITDA 307.3 328.4 319.6 1,030.5 1,057.5 1,053.9 159.1 1,114.3 356.9 380.9 388.7 1,321.1 886.7 EBITDA margin 34.6% 35.0% 34.8% 28.9% 4,028.6 1,070.3 1,085.4 1,093.9 33.3% 34.8% 34.8% 35.0% 194.6 899.2 4,148.7 29.0% 33.4% Non-current liabilities Bonds payable & long-term borrowings Long-term payables Other non-current liabilities 9,543.9 9,965.4 6,266.5 926.5 929.8 Net profit or loss from non-operating 273.6 (107.7) (89.7) 178.8 255.0 (18.3) (52.5) 44.0 (148.1) (174.9) items Income from continuing operations 580.9 220.6 229.9 338.0 1,369.3 338.6 before tax 328.4 432.7 46.6 1,146.3 Total shareholders' equity Common stock and additional paid in capital Retained earnings 17,279.9 9,831.0 10,099.7 6,437.2 6,244.1 6,135.4 6,097.0 5,819.5 6,162.8 6,345.9 1,062.8 1,611.0 1,223.8 1,229.0 1,234.2 1,239.5 2,350.9 2,598.4 2,524.0 2,353.3 2,417.8 2,286.9 2,250.3 2,227.3 18,005.0 17,612.3 10,862.9 10,781.3 10,507.7 10,515.8 10,383.4 9,738.6 9,335.3 9,647.2 9,812.6 290.5 2,256.8 2,257.0 (4,545.8) (4,468.6) (4,474.4) (4,473.0) (4,476.2) 16,488.3 14,707.7 14,688.3 14,770.6 14,672.3 14,717.1 14,839.6 14,691.5 Net income 466.0 184.0 158.4 265.4 1,073.8 252.0 224.5 305.1 87.9 869.5 Other comprehensive income/loss 501.1 1,040.5 667.0 638.0 577.7 265.1 149.2 168.1 1) Depreciation and amortization includes R&D related depreciation 1) Includes cash & cash equivalents and short-term financial instruments 18#19Appendix Consolidated Income Statement (KRW bn) Consolidated Balance Sheet Financial Statements - SKB 1Q21 2Q21 3Q21 4Q21 2021 1Q22 2Q22 3Q22 4Q22 2022 (KRW bn) 3-31-21 6-30-21 9-30-21 12-31-21 3-31-22 6-30-22 9-30-22 12-31-22 Operating revenue 967.0 997.1 1,024.4 1,060.6 4,049.2 1,026.0 1,032.8 1,044.2 1,053.3 4,156.3 Assets Operating expenses 891.6 932.9 945.8 1,003.3 3,773.6 949.9 954.6 964.5 981.5 3,850.6 Current assets Labor cost 137.4 138.4 140.4 153.7 569.9 144.0 145.8 151.0 156.3 596.9 Marketing expense 80.1 99.8 89.6 116.1 385.5 93.2 91.1 88.8 86.2 359.3 Cash & cash equivalents Short-term financial instruments 5,736.5 5,705.3 6,039.4 5,997.8 5,931.6 6,103.6 6,120.9 6,293.9 1,278.4 1,284.9 1,490.3 1,252.9 1,322.7 1,530.2 1,605.1 1,348.3 145.1 211.9 315.7 407.7 436.7 649.4 583.6 368.0 289.4 259.6 350.2 10.5 10.5 20.5 39.1 10.3 Commissions paid 270.5 282.5 288.1 294.1 1,135.2 285.7 290.6 290.9 Inventories 8.3 8.6 16.3 24.2 22.3 24.8 24.9 20.8 297.2 1,164.7 Other current assets 835.7 804.9 808.1 810.5 853.1 835.5 957.5 949.2 Interconnection 29.0 31.8 30.6 31.6 123.0 30.9 30.5 30.1 29.8 121.2 Non-current assets NW lease expense 28.3 31.0 28.3 32.3 119.9 30.4 31.8 33.4 34.5 130.0 4,458.1 4,420.4 4,549.1 4,744.9 4,608.9 4,573.4 4,515.9 4,945.6 Tangible assets 3,042.5 3,016.3 3,007.6 3,127.6 3,013.8 2,976.2 2,975.1 3,116.4 Others 118.2 116.8 128.4 130.9 494.4 120.7 122.9 129.9 134.9 508.3 Real estate investments 8.6 8.5 8.5 8.5 8.4 8.4 8.3 29.3 Depreciation 228.1 232.6 240.4 244.6 945.7 245.1 241.9 240.5 242.6 970.2 Operating income 75.4 64.2 78.6 57.4 275.6 76.1 78.2 79.7 71.8 305.7 EBITDA 303.5 296.7 319.0 302.0 1,221.3 321.2 320.1 320.2 314.4 1,275.9 Other intangible assets Other non-current assets Liabilities 789.3 790.5 617.7 611.1 784.5 771.4 765.7 745.1 728.3 761.6 818.4 820.9 843.8 804.1 1,059.2 740.7 EBITDA margin 31.4% 29.8% 31.1% 28.5% 30.2% 31.3% 31.0% 30.7% 29.9% 30.7% Non-operating income (7.4) 9.4 (7.6) (10.5) (16.1) (8.8) (5.4) (6.2) (4.9) (25.3) Income before tax 68.0 73.6 71.0 46.9 259.5 67.3 72.7 73.5 66.9 280.4 Net income 49.9 58.7 54.5 35.1 198.3 50.9 52.9 55.4 58.0 217.3 Current liabilities Accounts payable Short-term borrowings and notes payable Other current liabilities. 646.1 627.5 666.1 3,043.7 2,951.8 3,228.0 3,130.2 3,022.7 3,139.1 3,072.9 3,173.5 1,322.1 1,240.0 1,358.6 1,433.8 1,243.1 1,439.1 1,790.8 1,707.8 740.8 639.1 742.1 775.6 849.1 403.9 454.1 354.0 434.1 431.0 777.5 614.5 272.1 258.5 258.5 238.9 269.9 265.9 237.7 244.3 334.2 Non-current liabilities 1,721.7 1,711.8 1,869.4 1,696.4 1,779.6 1,700.0 1,282.1 1,465.6 Long-term trade payables Long-term borrowings and notes payable Other non-current liabilities 4.4 4.1 3.9 3.9 3.8 3.8 0.9 0.0 Equity Common stock 1,386.6 1,376.6 1,403.8 1,255.1 1,326.3 1,245.2 852.4 330.6 331.0 461.7 437.4 449.5 451.0 428.9 619.3 2,692.8 2,753.5 2,811.4 2,867.7 2,908.9 2,964.6 3,048.0 3,120.5 846.3 Additional paid in capital 2,007.3 2,007.3 2,007.3 2,007.3 2,007.3 2,007.3 2,007.3 2,010.2 636.5 635.5 635.5 645.7 645.7 645.6 645.7 657.7 Retained earnings Other comprehensive income/loss 44.1 103.6 162.4 205.6 253.7 308.3 395.6 454.5 4.9 7.1 6.2 9.1 2.2 3.4 (0.6) (2.0) 19#20Appendix Subscribers (Thousands) Operating Data 3Q20 4Q20 1Q21 2Q21 3Q21 4Q21 1Q22 2Q22 3Q22 4Q22 YOY QoQ SKT MNO Subscribers 1) 29,034 29,089 29,308 29,383 29,422 29,696 29,832 30,250 30,440 30,452 Net adds 101 55 219 74 39 274 136 418 190 12 Activations 856 794 956 777 788 1,057 837 1,076 914 660 Deactivations 755 739 737 702 750 782 701 658 724 Monthly Churn 0.9% 0.8% 0.8% 0.8% 0.8% 0.9% 0.8% 0.7% 0.8% 2.5% A95.5% A93.4% A37.5% A27.8% 648 A17.2% A10.6% 0.7% Δ0.2%ρ 0.0% A0.1%p Handset subs 24,123 24,052 24,042 23,982 23,906 23,750 23,678 23,587 23,402 23,278 A2.0% Δ0.5% LTE subs 23,230 22,182 21,251 20,475 19,644 18,782 17,981 17,645 17,201 16,367 A12.9% A4.8% 5G subs 4,263 5,476 6,736 7,696 8,650 9,874 10,879 11,682 12,468 13,393 35.6% 7.4% Total Mobile Subs 2) 31,440 31,384 31,520 31,626 31,595 31,884 32,129 32,559 32,831 32,836 3.0% 0.0% SKB Pay TV Subscribers 8,522 8,586 8,686 8,806 8,913 9,000 9,094 9,167 9,250 9,323 3.6% 0.8% IPTV subs 5,532 5,657 5,782 5,920 6,035 6,137 6,246 6,328 9,416 6,504 6.0% 1.4% CATV subs 2,990 2,929 2,904 2,886 2,878 2,863 2,848 2,839 2,834 2,819 A1.5% Δ0.5% High speed internet 6,445 6,476 6,508 6,539 6,560 6,580 6,608 6,633 6,669 6,704 1.9% 0.5% CAPEX (KRWbn) SKT SKB 245 736 165 683 306 1,025 197 658 269 1,091 6.3% 306.3% 152 426 55 166 204 397 82 148 189 401 1.0% 111.8% 1) Excludes MVNO & other connections 2) Includes MVNO connections, excludes other connections ARPU (KRW) ARPU¹) ARPU including MVNO 3Q20 4Q20 1Q21 30,051 30,269 27,783 28,066 30,213 28,124 2Q21 3Q21 30,446 30,669 28,395 28,600 4Q21 30,740 28,820 1Q22 30,401 28,492 2Q22 30,656 28,706 3Q22 4Q22 30,633 30,495 28,636 28,495 YOY QOQ 10.8% Δ0.5% A1.1% Δ0.5% 1) Calculation of SKT MNO revenue (2G/3G/LTE/5G and loT): Includes revenue from voice/data service (excludes activation fees and interconnection revenue), and revenue from additional service, Reflected revenue discount (discounts from contract and product bundling), Excludes MVNO related revenue Calculation of SKT mobile subscribers (2G/3G/LTE/5G and loT): Based on MSIT subscriber statistics (average number of billed connections for the quarter) 20#21SK telecom