Exhibit 8.1
List of Significant Subsidiaries of United Microelectronics Corporation
| Company |
Jurisdiction of Incorporation |
Percentage of Ownership as of December 31, 2023 |
||||
| UMC Group (USA) |
U.S.A. | 100.00 | % | |||
| United Microelectronics (Europe) B.V. |
The Netherlands | 100.00 | % | |||
| UMC Capital Corp. |
Cayman Islands | 100.00 | % | |||
| TLC Capital Co., Ltd. |
Taiwan, R.O.C. | 100.00 | % | |||
| Green Earth Limited |
Samoa | 100.00 | % | |||
| Fortune Venture Capital Corp. |
Taiwan, R.O.C. | 100.00 | % | |||
| UMC Investment (Samoa) Limited |
Samoa | 100.00 | % | |||
| ECP Vita Pte. Ltd. |
Singapore | 100.00 | % | |||
| Soaring Capital Corp. |
Samoa | 100.00 | % | |||
| Unitruth Advisor (Shanghai) Co., Ltd. |
China | 100.00 | % | |||
| Tera Energy Development Co., Ltd. |
Taiwan, R.O.C. | 99.01 | % | |||
| United Microchip Corporation |
Cayman Islands | 100.00 | % | |||
| Wavetek Microelectronics Corporation |
Taiwan, R.O.C. | 80.00 | % | |||
| Everrich Energy Investment (HK) Limited |
China | 99.01 | % | |||
| Everrich (Shandong) Energy Co., Ltd. |
China | 99.01 | % | |||
| Wavetek Microelectronics Corporation (USA) |
U.S.A. | 80.00 | % | |||
| Best Elite International Limited |
British Virgin Islands | 100.00 | % | |||
| Infoshine Technology Limited |
British Virgin Islands | 100.00 | % | |||
| Oakwood Associates Limited |
British Virgin Islands | 100.00 | % | |||
| Hejian Technology (Suzhou) Co., Ltd. |
China | 99.9985 | % | |||
| UnitedDS Semiconductor (Shandong) Co., Ltd. |
China | 99.9985 | % | |||
| United Semiconductor (Xiamen) Co., Ltd. |
China | 99.9994 | % | |||
| UMC Korea Co., Ltd. |
Korea | 100.00 | % | |||
| Omni Global Limited |
Samoa | 100.00 | % | |||
| United Microtechnology Corporation (California) |
U.S.A. | 100.00 | % | |||
| Sino Paragon Limited |
Samoa | 100.00 | % | |||
| United Semiconductor Japan Co., Ltd. |
Japan | 100.00 | % | |||