EX-8.1 4 microcloud_ex8-1.htm EXHIBIT 8.1

Exhibit 8.1

PRINCIPAL SUBSIDIARIES OF THE REGISTRANT

Name		Background			Ownership
MC Hologram Inc (“MC”)		-	A Cayman Islands company		100% owned by MicroCloud
		-	Formed on November 10, 2020
		-	Registered capital of USD 50,000
		-	Primarily engages in holographic integrated solutions.
Quantum Edge HK Limited (“Mengyun HK”)		-	A Hong Kong company		100% owned by MC
		-	Formed on November 25, 2020
		-	Registered capital of HK 10,000
		-	A holding company
Beijing Xihuiyun Technology Co., Ltd. (“Beijing Xihuiyun”)		-	A PRC limited liability company		100% owned by Mengyun HK
		-	Formed on May 11, 2021
		-	Registered capital of USD 30,000,000
		-	A holding company
Shanghai Mengyun Holographic Technology Co., Ltd. (“Shanghai Mengyun”)		-	A PRC limited liability company		81.63% owned by Beijing Xihuiyun and 18.37% owned by Mengyun HK
		-	Formed on March 24, 2016
		-	Registered capital of RMB 27,000,000
		-	Primarily engages in holographic integrated solutions.
Shenzhen Mengyun Holographic Technology Co., Ltd. (“Shenzhen Mengyun”)		-	A PRC limited liability company		100% owned by Shanghai Mengyun
		-	Formed on March 15, 2016
		-	Registered capital of RMB 10,000,000
		-	Primarily engages in holographic integrated solutions.
Shenzhen BroadVision Technology Co., Ltd. (“Shenzhen Bowei”)		-	A PRC limited liability company		100% owned by Shenzhen Mengyun
		-	Formed on April 12, 2016
		-	Registered capital of RMB 10,000,000
		-	Primarily engages in holographic PCBA solutions.

Name		Background			Ownership
Mcloudvr Software Network Technology HK Co., Limited (“Mcloudvr HK”)		-	A Hong Kong company		100% owned by Shenzhen Mengyun
		-	Formed on February 2, 2016
		-	Registered capital of HKD 100,000
		-	Primarily engages in holographic integrated solutions.
Broadvision Intelligence (Hong Kong), Ltd. (“Broadvision HK”)		-	A Hong Kong company		100% owned by Shenzhen Bowei
		-	Formed on November 5, 2020
		-	Registered capital of HKD 10,000
		-	No operation
Ocean Cloud Technology Co., Limited. (“Ocean HK”)		-	A Hong Kong company		56% owned by Mcloudvr HK
		-	Formed on November 4, 2021
		-	Registered capital of HKD 10,000
		-	No operation
Shenzhen Haiyun Xinsheng Technology Co., Ltd. (“Shenzhen Haiyun”)		-	A PRC limited liability company		100% owned by Ocean HK
		-	Formed on December 3, 2021
		-	Registered capital of RMB 300,000
		-	No operation
Shenzhen Haiyun Xingchen Technology Co., Ltd. (“Haiyun Xingchen”)		-	A PRC limited liability company		100% owned by Shenzhen Haiyun
		-	Formed on February 26, 2024
		-	Registered capital of RMB 300,000
		-	No operation
Yichang Ji Yue Technology Ltd. (“Yichang Ji Yue”)		-	A PRC limited liability company		100% owned by Haiyun Xingchen
		-	Formed on January 18, 2021
		-	Registered capital of RMB 1,000,000
		-	Advertising service Disposed on September 30, 2025
BeiJing Ji Yue Technology Ltd. (“BeiJing Ji Yue”)		-	A PRC limited liability company		100% owned by Yichang Ji Yue
		-	Formed on July 24, 2018
		-	Registered capital of RMB 500,000
		-	Advertising service Disposed on September 30, 2025

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Name		Background			Ownership
Shenzhen Yushian Technology Co., Ltd. (“Shenzhen Yushian”)		-	A PRC limited liability company		100% owned by Shenzhen Haiyun
		-	Formed on February 18, 2022
		-	Registered capital of RMB 1,000,000
		-	Advertising service
HaiYun Group Investment Ltd. (“HaiYun Group”)		-	A BVI Business company		100% owned by MC
		-	Formed on March 18, 2025
		-	No operation
HaiCloud Technology Inc. (“HaiCloud Inc”)		-	A Cayman Islands company		65% owned by HaiYun Group
		-	Formed on May 7, 2025
		-	Primarily engages in holographic integrated solutions.
HaiCloud Technology Limited. (“HaiCloud Ltd”)		-	A Hong Kong company		100% owned by HaiCloud Inc
		-	Formed on May 27, 2025
		-	Registered capital of HKD 1,000,000
		-	No operation
ShenZhen HaiYun Zhichuang Technology Ltd. (“HaiYun Zhichuang”)		-	A PRC limited liability company		100% owned by HaiCloud Ltd
		-	Formed on June 27, 2025
		-	Registered capital of RMB 1,000,000
		-	No operation
Shanghai Kuosou Technology Ltd. (“Shanghai Kuosou”)		-	A PRC limited liability company		100% owned by Haiyun Xingchen
		-	Formed on February 11, 2018
		-	Registered capital of RMB 1,000,000
		-	Primarily engages in Advertising service.

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