| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| WEIDONG YIN | Chief Executive Officer, Director | NO. 39 SHANGDI XI ROAD, HAIDIAN DISTRICT, BEIJING, CHINA | /s/ Jia Zhao, Attorney-in-Fact | 18 Mar 2026 | 0001264738 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | SVA | Common shares, par value $0.001 per share | 6,359,500 | 18 Mar 2026 | Direct |
Exhibit 24 - Power of Attorney