Slide 1: 2025 Earnings Release
KT 2025 Earnings Release 2026. 02. | Investor Relations
Slide 2: Disclaimer
Disclaimer This presentation has been prepared by KT Corp.(the “Company”) in accordance with K-IFRS. This presentation contains forward-looking statements, which are subject to risks, uncertainties, and assumptions. This presentation is being presented solely for your information and is subject to c
Slide 3: Contents
Contents 1 2025 Highlights 2 Financial Highlights 3 Business Overview 4 Appendix
Slide 4: 2025 Highlights
1 2025 Highlights Financials OP increased, driven by real estate PJT*, CT and group portfolio growth (Unit: KRW) Cons. Revenue 28,244.2bn (YoY +6.9%) Sep. Revenue 1 9,324.0bn (YoY +4.0%) Operating Operating Profit 2,469.1 bn (YoY +205.0%) Profit 1 ,305.0bn (YoY +276.6%) * Gwangjin-gu Lotte Eastpole
Slide 5: Rebuilding customer trust
1-2 Rebuilding customer trust Investigation result Appreciation package ✓ Incident Impact ✓ USIM replacement for total subscribers - Unauthorized payment (368 subs., KRW 240mn.) ✓ Cancellation fee waivers (’25.12.31~’26.01.13) - Data breach IMSI, IMEI, phone numbers (22,227 subs.) - Malware(includin
Slide 6: FY2028 Financial Target and Action Plans: AICT Company
1-2 FY2028 Financial Target and Action Plans AICT Company Additional Shareholder AICT Transformation Secure Profitability Asset Optimization Return 6
Slide 7: Contents
Contents 1 2025 Highlights 2 Financial Highlights 3 Business Overview 4 Appendix
Slide 8: Consolidated Income Statement
K-IFRS / Consolidated 1 Income Statement • Revenue +6.9% YoY driven by growth in telecom, real estate, and DC/Cloud business • OP +205.0% reflecting KT Group-wide efforts for profitability and gains from real estate development (Unit: KRW bn) 4Q24 3Q25 4Q25 QoQ YoY 2024 2025 YoY Operating Revenue 6,
Slide 9: Consolidated Operating Expenses
K-IFRS / Consolidated 2 Operating Expenses • Total expenses held flat YoY : Labor and depreciation efficiency offset higher selling expense from subs. growth (Unit: KRW bn) 4Q24 3Q25 4Q25 QoQ YoY 2024 2025 YoY Operating Expenses 7,230.7 6,588.6 6,617.7 0.4% -8.5% 25,621.7 25,775.1 0.6% Labor Cost 2,
Slide 10: Consolidated Balance Sheet
K-IFRS / Consolidated 3 Balance Sheet • Net debt ratio maintained at prior-year levels, due to capital growth from higher net income (Unit: KRW bn) Dec. 31, 2024 Sep. 30, 2025 Dec. 31, 2025 QoQ YoY Assets 41,880.0 43,012.8 42,948.6 -0.1% 2.6% Cash & Cash equivalents 3,729.5 3,890.3 3,507.0 -9.9% -5.
Slide 11: Separate and major subsidiaries CAPEX
K-IFRS / Separate and major subsidiaries 4 CAPEX • FY25 Total CAPEX Execution: KRW 2,143.9bn (KT Separate), KRW 795.8bn(Major Subsidiaries) (Unit: KRW bn) 3,534 3,319 3,124 2,940 813 907 824 796 ■ Major Subsidiaries’ CAPEX Includes Finance, Media, DC/Cloud, 2,721 Real Estate, etc. 2,412 2,300 2,144
Slide 12: Contents
Contents 1 2025 Highlights 2 Financial Highlights 3 Business Overview 4 Appendix
Slide 13: KT - Wireless
K-IFRS / Separate 1 KT - Wireless • Wireless service revenue +3.3% YoY with expanded subscriber base (5G penetration 81.8%) • Continued efforts to differentiate products, distribution and pricing (Unit: KRW bn) 4Q24 3Q25 4Q25 QoQ YoY 2024 2025 YoY Wireless 1,717.8 1,809.6 1,811.0 0.1% 5.4% 6,959.9 7
Slide 14: KT - Fixed Line
K-IFRS / Separate 2 KT - Fixed Line • Broadband rev up +1.9% YoY, due to increase in GiGA subscribers and value-added services • Media rev. up +1.7% YoY, backed by IPTV net adds and growth in outdoor advertising biz. (Unit: KRW bn) 4Q24 3Q25 4Q25 QoQ YoY 2024 2025 YoY Fixed Line 1,317.1 1,331.9 1,33
Slide 15: KT - B2B Services
K-IFRS / Separate 3 KT - B2B Services • Despite the ongoing rationalization of low-margin businesses, B2B rev. + 1.3% YoY driven by balanced growth between the telecom and AI/IT businesses (Unit: KRW bn) 4Q24 3Q25 4Q25 QoQ YoY 2024 2025 YoY B2B Service 856.5 932.7 858.6 -7.9% 0.2% 3,560.6 3,606.3 1.
Slide 16: Major Subsidiaries
K-IFRS / Consolidated(each subsidiary) 4 Major Subsidiaries • kt cloud rev. +27.4% YoY, due to increased usage of DC from global clients and public AI Cloud • kt estate rev +15.9% YoY, supported by growth in hotel business and new development* project Revenue of Major Subsidiaries (consolidated) (Un
Slide 17: Contents
Contents 1 2025 Highlights 2 Financial Highlights 3 Business Overview 4 Appendix
Slide 18: K-IFRS Income Statement
1 K-IFRS Income Statement (Unit: KRW bn) Consolidated 4Q24 1Q25 2Q25 3Q25 4Q25 KT Separate 4Q24 1Q25 2Q25 3Q25 4Q25 Operating revenue 6,575.6 6,845.1 7,427.4 7,126.7 6,845.0 Operating revenue 4,571.6 4,682.0 4,772.8 5,109.0 4,760.2 Service revenue 5,754.7 5,700.4 5,817.8 5,920.8 5,949.4 Service reve
Slide 19: K-IFRS Balance Sheet
2 K-IFRS Balance Sheet (Unit: KRW bn) Consolidated 4Q24 1Q25 2Q25 3Q25 4Q25 KT Separate 4Q24 1Q25 2Q25 3Q25 4Q25 Assets 41,880.0 42,185.6 42,193.3 43,012.8 42,948.6 Assets 29,528.9 29,041.0 29,008.7 29,049.2 29,677.6 Current assets 14,251.9 14,458.5 14,385.4 15,123.6 13,977.5 Current assets 6,892.6
Slide 20: Separate Subscribers
K-IFRS / Separate 3 Subscribers (Unit: Thousands) Wireless Subscribers 4Q 24 1Q 25 2Q 25 3Q 25 4Q 25 QoQ YoY Total 26,132 26,445 27,491 28,328 28,985 2.3% 10.9% - MNO 18,950 19,186 19,842 20,271 20,618 1.7% 8.8% - MVNO 7,182 7,259 7,649 8,057 8,368 3.9% 16.5% 1) 5G Handset 10,400 10,552 10,866 11,04
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