Exhibit 8.1
List of Subsidiaries
| Subsidiarites | Place of Incorporation | |
| MC Hologram Inc. | Cayman Islands | |
| Quantum Edge HK Limited | Hong Kong | |
| Beijing Xihuiyun Technology Co., Ltd | PRC | |
| Shanghai Mengyun Holographic Technology Co., Ltd. | PRC | |
| Shenzhen Mengyun Holographic Technology Co., Ltd. | PRC | |
| Horgos Weiyi Software Technology Co., Ltd. | PRC | |
| Shenzhen BroadVision Technology Co., Ltd. | PRC | |
| Mcloudvr Software Network Technology HK Co., Limited | Hong Kong | |
| Broadvision Intelligence (Hong Kong), Ltd. | Hong Kong | |
| Horgos BroadVision Technology Co., Ltd. | PRC | |
| Ocean Cloud Technology Co., Limited. | Hong Kong | |
| Shenzhen Haiyun Xinsheng Technology Co., Ltd. | PRC | |
| Shenzhen Yushian Technology Co., Ltd. | PRC |