Exhibit 8.1

List of Subsidiaries of SK Telecom Co., Ltd.

(As of December 31, 2016)



|                                                                                  |  |                              
|--------------------------------------------------------------------------------- |  | -----------------------------
|Subsidiary Name                                                                   |  | Jurisdiction of Incorporation
|                                                                                  | 
|SK Telink Co., Ltd.                                                               |  | Korea                        
|                                                                                  | 
|SK M&Service Co., Ltd.                                                            |  | Korea                        
|                                                                                  | 
|SK Communications Co., Ltd.                                                       |  | Korea                        
|                                                                                  | 
|Stonebridge Cinema Fund                                                           |  | Korea                        
|                                                                                  | 
|SK Broadband Co., Ltd.                                                            |  | Korea                        
|                                                                                  | 
|K-net Culture and Contents Venture Fund                                           |  | Korea                        
|                                                                                  | 
|PS&Marketing Co., Ltd.                                                            |  | Korea                        
|                                                                                  | 
|Service Ace Co., Ltd.                                                             |  | Korea                        
|                                                                                  | 
|Service Top Co., Ltd.                                                             |  | Korea                        
|                                                                                  | 
|Network O&S Co., Ltd.                                                             |  | Korea                        
|                                                                                  | 
|SK Planet Co., Ltd.                                                               |  | Korea                        
|                                                                                  | 
|Neosnetworks Co., Ltd.                                                            |  | Korea                        
|                                                                                  | 
|Iriver Ltd.                                                                       |  | Korea                        
|                                                                                  | 
|Iriver Enterprise Ltd.                                                            |  | Hong Kong                    
|                                                                                  | 
|Iriver Inc.                                                                       |  | U.S.A.                       
|                                                                                  | 
|Iriver China Co., Ltd.                                                            |  | China                        
|                                                                                  | 
|Dongguan Iriver Electronics Co., Ltd.                                             |  | China                        
|                                                                                  | 
|Groovers JP Ltd.                                                                  |  | Japan                        
|                                                                                  | 
|SK Telecom China Holdings Co., Ltd.                                               |  | China                        
|                                                                                  | 
|SK Global Healthcare Business Group, Ltd.                                         |  | Hong Kong                    
|                                                                                  | 
|SK Planet Japan, K. K.                                                            |  | Japan                        
|                                                                                  | 
|SKT Vietnam PTE., Ltd.                                                            |  | Singapore                    
|                                                                                  | 
|SK Planet Global PTE. Ltd.                                                        |  | Singapore                    
|                                                                                  | 
|SKP Global Holdings PTE. Ltd.                                                     |  | Singapore                    
|                                                                                  | 
|SKT Americas, Inc.                                                                |  | U.S.A.                       
|                                                                                  | 
|SKP America LLC                                                                   |  | U.S.A.                       
|                                                                                  | 
|YTK Investment Ltd.                                                               |  | Cayman Islands               
|                                                                                  | 
|Atlas Investment                                                                  |  | Cayman Islands               
|                                                                                  | 
|SK Telecom Innovation Fund, L.P. (formerly, Technology Innovation Partners, L.P.) |  | U.S.A.                       
|                                                                                  | 
|SK Telecom China Fund I L.P.                                                      |  | Cayman Islands               
|                                                                                  | 
|Entrix Co., Ltd.                                                                  |  | Korea                        
|                                                                                  | 
|SK techx Co., Ltd.                                                                |  | Korea                        
|                                                                                  | 
|One Store Co., Ltd.                                                               |  | Korea                        
|                                                                                  | 
|Shopkick Management Company, Inc.                                                 |  | U.S.A.                       
|                                                                                  | 
|Shopkick, Inc.                                                                    |  | U.S.A.                       
|                                                                                  | 
|Planet11 E-commerce Solutions India Pvt. Ltd.                                     |  | India                        
|                                                                                  | 
|11street (Thailand) Co., Ltd.                                                     |  | Thailand                     
|                                                                                  | 
|Hello Nature Ltd.                                                                 |  | Korea