EXHIBIT 8.1
List of Principal Subsidiaries of I-MAB
| Name of Subsidiary |
Place of Incorporation | |
| I-Mab Biopharma Hong Kong Limited | Hong Kong | |
| I-Mab Biopharma US Ltd. | United States | |
| I-Mab Bio-tech (Tianjin) Co., Ltd. | People’s Republic of China | |
| I-Mab Biopharma Co., Ltd. | People’s Republic of China | |
| Chengdu Tasgen Bio-tech Co., Ltd. | People’s Republic of China | |
| Shanghai Tianyunjian Bio-tech Co., Ltd. | People’s Republic of China | |
| Zhejiang Tianli Pharmaceutical Sales Co., Ltd. | People’s Republic of China | |
| I-Mab Pharmaceutical (Shanghai) Co., Ltd. | People’s Republic of China | |
| Thirdventure Beijing Bio-tech Co., Ltd. | People’s Republic of China |