Exhibit 8.1
Principal Subsidiaries and Affiliated Entity of The Registrant
| Name of Subsidiary | Jurisdiction of Incorporation | |
| HONG KONG UCLOUDLINK NETWORK TECHNOLOGY LIMITED | Hong Kong | |
| UCLOUDLINK (HK) LIMITED | Hong Kong | |
| uCloudlink Japan Co., Ltd. | Japan | |
| Ucloudlink (America), Ltd. | the United States | |
| UCLOUDLINK UK LIMITED | the United Kingdom | |
| UCLOUDLINK SDN. BHD. | Malaysia | |
| UCLOUDLINK (SINGAPORE) PTE. LTD. | Singapore | |
| Shenzhen Ucloudlink Technology Limited | Mainland China | |
| Beijing uCloudlink Technology Co., Ltd. | Mainland China | |
| Shenzhen uCloudlink Co., Ltd. | Mainland China | |
| Shenzhen Yulian Cloud Technology Co., Ltd. | Mainland China | |
| Shenzhen uCloudlink Network Technology Co., Ltd. | Mainland China | |
| Beijing uCloudlink New Technology Co., Ltd. | Mainland China |
| Name of Consolidated Affiliated Entity | Jurisdiction of Incorporation | |
| UCLOUDLINK (UK) CO. LTD | the United Kingdom |