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June 15, 2010

SK telecom Introduction and Wi MAX Service. June 15, 2010. Table of Contents. I. II. III. SK Group overview. SKT introduction. SKT WiMAX service. SK Group overview.

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June 15, 2010

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  1. SK telecom Introduction and • WiMAX Service June 15, 2010

  2. Table of Contents I II III SK Group overview SKT introduction SKT WiMAX service

  3. SK Group overview SK is the 3rd largest conglomerate in Korea with combined revenue of USD 79 billion in 2009. Its business covers Information Technology and Telecommunications, Energy and chemicals, Trading and Service industries. ●Group Financials Energy & Chemicals 51.4% Telecommunications 17.7% Trading & Services 30.8% Unit : Bn. $ ●Group companies : 82

  4. Wireless market overview of Korea Wireless market penetration rate has reached 98% and WCDMA subscriber base has also been increasing rapidly. Wireless market has experienced steady growth along with the increase in wireless data market. Wireless market trend Wireless market ‘s total revenue and data revenue Units : Million, % Units : Korean Won Bn.(1$=1,200 Won) 18.5 Bn.$ 3.5 Bn.$ Note : (1) SMS tariff cut Source : Company data

  5. Competitive landscape SKT continues to demonstrate undisputed market leadership Market share by subscribers Service revenue Units : 000s, % Units : Korean Won Bn.(1$=1,200 Won) 10.1 Bn $ 9.7 Bn $ Note : (1) KTF’s revenue before the KT-KTF merger in June ‘09 Source : Company data, as of December 31, 2009

  6. Multi-network architecture MGW HLR Packet Core Network RNC MSC Mainly SKT has two networks; Circuit core network for voice and Packet core network for data service, including S-DMB service. Various Access network is optimized to provide various multi-media services and satisfy user’s needs for convergence service. Message(SMS) IS-95A/B CDMA2000 1X 1x EV-DO Video Telephony Mobile TV (Nate Air) GPS MSC Server BSC/PCF Circuit Core Network • WCDMA • HSDPA • HSUPA • HSPA+(Ready) S-DMB SCP Roaming SGSN Ku-Band Gap Filler S-Band WiMAX ACR RAS S-DMB Broadcast Center HLR AC Billing VAS NMS Packet NetworkGateway RAS Home Office Cluster Home Theater Cluster GGSN Internet Portal WPAN Remote Control PDSN Packet Interface Home Network Contents Provider Nate Platform Multimedia Messaging (MMC) LBS Family PC Cluster Packet Video Telephony Video Cluster Mobile IM MSC (Mobile Switching Center), RNC(Radio N/W Controller), SGSN(Serving GPRS Supporting Node), BSC (Base Station Controller), PCF (Packet Control Function), PDSN (Packet Data Core N/W), GGSN (Gateway GPRS Supporting Node), LBS (Location-based Service), MGW (Media Gate Way), SCP (Service Control Point), TIIS (Telephone Information Integration System), WPAN (Wireless Personal Access Network: Bluetooth/RFID etc.)

  7. Convergence services The World’s FirstSegmentation Culture Marketing (Telecom Field) CDMA2000 1x HSUPA HSDPA WiMAX EVDO SKT has been leading the market by developing new mobile technologies and rolling out innovative mobile multimedia services. Total Mobile Brand Ubiquitous Community Service Movie Portal Telematics Mobile Financing 3G Multimedia Portal Number Portability SatelliteDMB World First Value-addedRing-Back Tone 3 D Game Portal Wired & Wireless Portal WiMAXServicel Entry of 3 New Service Providers OperatingIncome Music Portal NetworkEvolution CDMA WCDMA ’06 ’95 ’96 ’97 ’98 ’99 ’00 ’01 ’02 ’03 ’04 ’05 ’10

  8. Diverse global business experience With the technology, innovative services and advanced operational skills, SKT has cooperated with many mobile operators around the world • Platform Licensing • Taiwan (APBW) • Thailand (TA Orange) • Singapore (SingTel, M1) • Indonesia (TelkomSel) • Philippine (SMART) • I-Kids (Mobiles2go, 7 countries) • Network Consulting • India (Reliance Communications) • China (China Telecom & Unicom) • Australia (Telstra) • Japan (KDDI) • Brazil (TeleSP) • Thailand (BFKT) • Taiwan (APBW) • Managed Service • Bahrain (Kulacom) • Jordan England German Mongolia • MVNO • USA (Helio) China USA Jordan Bahrain Japan Spain India Taiwan Vietnam Philippines • Portal • UNISK and Viatech in China - UNISK: JV with China Unicom- Viatech: Community Portal Thailand Singapore Brazil Indonesia Australia

  9. Diverse global business experience SKT has diverse global consulting experience based on know-how accumulated across all areas through our experience in technology evolution • 3G License proposal consulting • Vietnam • 3G & WiMAX evolution strategy consulting • India B4G Broadband Multimedia Service 1995 2000 2005 2010 Mobility HSDPA HSUPA HSPA+ IS-95A/B CDMA1x EV-DO WCDMA LTE Satellite DMB WiMAX Wireless LAN (2.4GHz) Data Rate • WiMAX network managed service • Jordan (3.5GHz WiMAX Service) • - Network Design, Planning, Deployment • Bahrain (5.8GHz WiMAX/WiFi Service ) • - NGN Evolution Strategy, Deployment • 1X EV-DO Rev.A optimization consulting • China • - Access & Core Network optimization

  10. Growth strategy – B2C business Quantum jump in wireless data market Achieve a quantum jump in the wireless data market by leading the market’s transformation into a “open” data business model Target Service (Number of Subscriber) Data flat rate price plan T-Store Contents • Contents : 40,000 • [As of April,2009]

  11. Growth strategy – B2C business Quantum jump in wireless data market Lead the expansion of smartphone user base who generate high level of data ARPU by strengthening smartphone line-up and reinforcing network efficiency Device plans in 2010 • Strengthen smartphone line-up by introducing devices embedded with various operating systems, i.e. Android, Windows mobile, Symbian etc. • - 15 smartphones out of 50 new models • - 12 Android-embedded handsets • Embed Wi-Fi function on 25 handsets • Launch Non-DRM MP3 playable handsets Target Smartphone user (Number of Subscriber) Network plans in 2010 • Expand 3G capacity through WCDMA • reinforcement and HSPA+ commercialization • Establish Wi-Fi zones by utilizing broadband • and WiMAX networks • Construct open Wi-Fi zones in public areas • and partner companies • The data ARPU of the recent popular smartphone users was approximately twice as high as that of feature phone users

  12. Growth strategy – B2B business IPE concept Promote a business model in which SKT supports the enhancement of other industries’ productivity, based on “Smart & Green” information and communication technology(ICT) Business Model • SK telecom • Pursue ‘win-win’ strategies by collaborating with major players in other industries • Support growth of not only the corporations but also the industry/public field as a whole, and share the increased • benefits together

  13. Growth strategy – B2B business IPE strategy Implement IPE business in both domestic and overseas B2B markets by leveraging SKT’s ICT assets Introduce IPE service to the global market by utilizing SK group’s worldwide network SKT’s cutting-edge ICT Vision (SKT’s B2B revenue) 16.7 Bn.$ 0.83 Bn.$ Become Leading global ICT company with B2B revenue of $ 16.7 Bn. Target Market

  14. Data traffic trend and Solutions Data traffic of major global carriers is increasing exponentially due to a rise in smartphone sales and flat-rate plan subscribers, and data traffic of those carriers has already surpassed voice traffic. Solution for network capacity Global Telco data traffic North Europe 5 times increase in 2008 North America 18 times increase between ’07~’09 Japan 4 times increase between ’06~’08 Data Traffic Vodafone Europe 3 times increase over the past 2 years Orange Europe 5.5 times increase in ’08 Web Browsing & Video Contents ↑ Spread of 3G Smart Phone Data Flat Rate Charge

  15. SKT Mobile WiMAX business • 802.16/D3 • Wave 1 System Profile • 802.16/D12 • 802.16/Cor2 • 802.16/Cor2 • Wave 2 System Profile • 6 Hot Zones in Seoul • (Wave 1) • 17 Hot Zones in Seoul Seoul • 5 Metro areas(Wave 1) (Wave 2/Wave 1) SKT has been continuously upgrading its systems following the evolution of WiBro technologies, and expanded service coverage from 6 hot zone areas to whole Seoul areas and major cities. Commercialization WiMAX Coverage Seoul Seoul Busan Jeju

  16. Network portfolio plan SKT has a plan to hand over an optimal and seamless technology portfolio for the efficient data service delivery as a multi-network operator. Multi Access Technologies Optimal Network Portfolio Improve Data Rate & Mobility High-speed Data Demand Mobility HSDPA HSUPA HSPA+ 95A/B1X EV-DO WCDMA WiMAX Main Cities WCDMA Nationwide Coverage WiMAX 2G/ 1X/DO Nationwide Coverage Data Rate Combination of networks Seamless handover(2G↔3G) Optimal Network Portfolio High-Speed data service

  17. WiMAX Solution – In-building/Outdoor AP, Femto-cell

  18. WiMAX solution – tripple mode repeater Reverse Frequency 824 ~ 849MHz(2G) 1940 ~ 1960MHz(3G) 2300 ~ 2327MHz(WiMAX) Forward Frequency 869 ~ 894MHz(2G) 2130 ~ 2150MHz(3G) 2300 ~ 2327MHz(WiMAX) SKT developed the Trple mode repeater which can repeat CDMA, WCDMA and WiMAX signals simula-taneously to remote areas, which expands the coverage and provides quality of service to shadow areas. Triple mode Repeater Architecture • Integrated Optic Repeater • Supporting CDMA, WCDMA and • WiMAX single platform CDMA BTS WCDMA • Cost-Effective Deployment WiMAX 10MHz,Tsync • Trpple mode in one repeater • Easy installation • Flexible PAU Change • (CDMA, WCDMA, WiMAX) Remote3 Remote2 Remote1 • Increased Reliability Donor Capacity • Branch: Max 3ea • FA:2G(20FA),3G(4FA),WiMAX(3FA) • Maximum Remote: 3 site Remote Capacity • FA:2G(20FA),3G(4FA),WiMAX(3FA) • Sector: 1 Sector • Reverse Diversity Support • Divided remote system and PAU • Minimize system failure with quick • recovery

  19. WiMAX solution - Bridge Creation of convergence Internet service through connection of a service provider’s Mobile WiMAX infrastructure customer’s Wi-Fi Diagram • Internet service available anytime and anywhere by extending the existing Wi-Fi’s • limited coverage • with Mobile WiMAX network • SKT WiMAX Bridge is a terminal with built-in Wi-Fi and WiBro • Continuous operation for 4 hours and complete charge in 2.5hours • Mobile device : laptop, netbook, smarphone, nintendo, PMP, etc.

  20. WiMAX systems for fast data service • Network establishment optimal for data service at a minimum cost • Network organization by coordinating various devices depending on system • installation environment and target capacity WiMAX Repeater WiMAX RAS WiMAX Bridge • Macro base station-based WiMAX service produces coverage holes for signal dilution from high • transmission frequency • • WiMAX systems – IBCell, ODCell, Femtocell, Repeater – can resolve the problems above and meet • economic efficiency.

  21. Overview WiMAX global business - Jordan To implement WiMAX network based on the IEEE 802.16e of Kulacom Jordan, SKT performed NW design, vendor evaluation, progress management, optimization and system inspection etc. Project overview Project : KJ WiMAX Network Deployment Terms ● Contract : May 21, 2008 ● Project performance : June 1st,2008 ~ Jan 31st, 2009 Coverage : Amman Coverage area, which represents 30% of Amman geographic area Outline history of project 2008 Jun. 04 Project kickoff meeting(KJ/SKT) RF design Jul. 08 FAT(Redline, Purewave,SK telesys) Aug. 06 Final WiMAX vendor evaluation Aug. 12 WiMAXdemonstration Dec. 17 2009 Jan. 25 43 sites of Phase I were on-air

  22. Opening ceremony WiMAX global business - Jordan Bassem Al Rousan, Jordan's Minister of Information and Communications and Chairman of Korea Communications Commission celebrated the launching of Kulacom Jordan WiMAX service WiMAX demonstration – Video call Kulacom Jordan CEO Opening ceremony in Jordan Switching center

  23. Coverage & Performance WiMAX global business - Jordan In May 2009, Kulacom Jordan launched commercial services in Amman In 2010, expand the service coverage to neighboring cities including rural areas. Performance Service coverage in Amman Items Result Maximum sector throughput with SM MIMO @ 5Mhz BW DL : 13.0 Mbps (Lab) UL : 4.3 Mbps Maximum data rate of users @ 5Mhz BW DL : 8.0 Mbps UL : 2.2 Mbps MIMO QoS coverage - DL : 512K - UL : 128K RSSI: -82,-82 dBm (DL) RSSI: -83,-81 dBm (UL)

  24. 3G/WiMAX - India SKT suggested feasible strategy for 3G and WiMAX. And also, reports suggested various cost saving solutions in lnfra-structure sharing, repeater etc. for RCOM’s efficient NW operation Work packages Project overview • Project : Reliance Communications 3G/WiMAX strategy • Terms • - Contract : Oct.21,’09 • - Project period : Oct. 26th,’09 ~ Feb. 5th,’10 Phase 1 3G Services and Call Model 1 3G N/W migration 7 WiMAXN/W solution 8 Background Backhaul N/W Phase 2 2 • Validate RCOM’s NW plan and architecture for 3G & WiMAX • Based on the rich experience of SKT on multi-technology & • multi-vendor scenario suggest various recommendations on … - CapEx/OpEx Optimization - Quality & Performance Management - N/W Efficiency - Quality of Experience Management - Customer Care Management - Infra-sharing with legacy NW - Operational Principles Improvement PS Core N/W 5 FemtoCell Deployment 6 VoIP on UMTS/WiMAX 10 Infra Sharing Strategy 11 IP/MPLS Backbone N/W Phase 3 3 CS Core N/W 4 Repeater Solutions 9

  25. 3G/WiMAX - India SKT has contributed in improving operation efficiency of Reliance's multi-network including 2G CDMA/GSM 3G and WiMAX networks through providing various solutions before deploying 3G/WiMAX networks based on SKT's long network operation experience.

  26. Thank you very much Liyong.lee@sktelecom.com +82-10-3869-3344

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