Results of Operations

5 Apr 2007 07:00

Preliminary Results of Operations (Fair Disclosure)

\* The following estimates are subject to change based on the actual results of our business performance.

1. Details of Results of Operations (Unit: in Results of Results of Increase Results of Increase millions of Won, Current Period Previous (Decrease) the same (Decrease)%) Period from period in from the Previous Fiscal same Period (%) Year ended period in December Fiscal 31, 2006 Year ended (%) December 31, 2006 (%) Operating Current _ _ _ _ _Revenue Total _ _ _ _ _ Operating Current _ _ _ _ _income Total _ _ _ _ _ Ordinary Current _ _ _ _ _Income Total _ _ _ _ _ Net Current _ _ _ _ _Income Total _ _ _ _ _ Wireless 20,733,000 20,561,000 0.84% 19,733,000 5.07% Subscribers (End of March (End of (End of 2007) February 2007) March 2006) ARPU (Average Won 42,134 Won 44,013 (4.27%) Won 41,268 2.10% Revenue per User) (February (January 2007) (February 2007) 2006) Average Wireless Won 10,532 Won 10,591 (0.56%) Won 10,433 0.95% Internet Revenue per User (February (January 2007) (February 2007) 2006) Outgoing Voice 199 minutes 207 minutes (3.86%) 193 3.11% MOU (Minutes of minutes

Usage) (January 2007) (December 2006) (January 2006) 2. Details of Information provider: SK Telecom IR Team Disclosure Target audience of Securities analysts and disclosure: institutional investors. (Scheduled) information The above Information will be release date: released by email or at www.sktelecom.com after this disclosure is made. Event (Location): -- 3. Contact Details Person responsible for Tae Jin Park, Head of IR Team disclosure (Tel.): (822-6100-2400) Inquiries relating to Jinmo Kim, Manager, IR Team disclosure (Tel.): (822-6100-1620) 4. Other Relevant Matters: Please refer to the attached file for details. *Related Disclosure: _ EXHIBIT INDEX Exhibit No. Description Factsheet(April) Monthly Factsheet dated as of April 3, 2007

For the Monthly Factsheet, please refer to http://www.xprn.com.cn/xprn/sa/ 200704051133.jpg .

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

SK Telecom Co., Ltd. (Registrant) By: /s/ Tae Jin Park (Signature) Name: Tae Jin Park Title: Vice PresidentDate: April 5, 2007