Results of Operations

3 Aug 2007 07:40

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 Previous (Decrease) the same (Decrease) Period Period from period in from the Previous Fiscal Year same Period (%) 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 21,387,000 21,358,000 0.14% 19,973,000 7.08% Subscribers (End of July (End of June (End of 2007) 2007) July 2006) ARPU (Average Won 44,308 Won 46,186 (4.07%) Won 44,783 (1.06%) Revenue per User) (June 2007) (May 2007) (June 2006) Average Wireless Won 10,977 Won 11,411 (3.80%) Won 11,753 (6.60%) Internet Revenue (June 2007) (May 2007) (June 2006)per User Outgoing Voice 211 minutes 204 minutes 3.43% 211 minutes 0.00% MOU (Minutes of (May 2007) (April 2007) (May 2006)Usage) 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. (Please refer to xprnnews.xfn.info/SK/20070803/Exhibit99.1.pdf ) *Related Disclosure: -- EXHIBIT INDEX Exhibit No. Description 99.1 Monthly Factsheet dated as of August 3, 2007 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: August 3, 2007