Exhibit 8.1

List of Subsidiaries

Of

Ridgetech, Inc. (the “Company”)

1. Renovation Investment (Hong Kong) Co., Ltd. (“Renovation”) is a Hong Kong company and is wholly-owned by the Company.  

2. Zhejiang Shouantang Medical Technology Co., Ltd. (“Shouantang Technology”) is a Chinese company wholly-owned by Renovation.  

3. Hangzhou Shouantang Bio-technology Co., Ltd. (“Shouantang Bio”) is a Chinese company wholly owned by Shouantang Technology.  

4. Hangzhou Kahamadi Bio-technology Co., Ltd.(“Kahamadi Bio”) is a Chinese company 49% owned by Shouantang Bio.  

5. Hangzhou Jiuyi Medical Technology Co. Ltd. (“Jiuyi Technology”) is a Chinese company wholly owned by Renovation.  

6. Zhejiang Jiuxin Medicine Co., Ltd. (“Jiuxin Medicine”) is a Chinese company and is wholly-owned by Renovation.  

7. Hangzhou Jiutong Medical Technology Co., Ltd. (“Jiutong Medical”) is a Chinese company and is wholly-owned by Renovation.  

8. Ridgeline International Limited (“Ridgeline”) is a Hong Kong company and is wholly-owned by Renovation.  

9. Allright (Hangzhou) Internet Technology Co. Ltd (“Allright”) is a Chinese company and is wholly-owned by Ridgeline.