| Schedule of related party transactions |
| | | Name of related parties | | Relationship | Peter Luo | | Chairman, Chief Executive Officer and a principal shareholder of the Company | Certain senior management personnel | | Management and ordinary shareholders of the Company | WuXi AppTec Co., Ltd. (“WuXi AppTec Group”) (a) | | A principal shareholder of the Company | WuXi Biologics (Cayman) Inc. (a) | | Controlled by the ultimate controlling party of a principal shareholder of the Company |
Note (a): In April 2026, the Company closed an underwritten public offering of 18,666,000 ADSs, each representing 1.25 ordinary shares of the Company (see Note 18 for detail). Right after the closing, WuXi AppTec Group’s shareholding in the Company dropped below 5% and WuXi AppTec Group had no significant influence over the Company. As a result, WuXi AppTec Group and WuXi Biologics (Cayman) Inc. were not considered the Group’s related parties since then. | b) | The Group had the following related party balances as of December 31, 2025 and June 30, 2026: |
| | | | | | | As of December 31, | | As of June 30, | | | 2025 | | 2026 | | | US$ | | US$ | WuXi AppTec Group(a) | | 14,276 | | — | Certain senior management personnel | | 3,073 | | 3,025 | Total amounts due from related parties | | 17,349 | | 3,025 |
As of December 31, 2025, the amounts due from WuXi AppTec Group represented prepayments made for the CRO and CDMO services. As of December 31, 2025 and June 30, 2026, the amounts due form certain senior management member represented rent deposit and advance rent payments made to one senior management personnel for operating lease of the senior management member’s personal property for business use. | | | | | | | As of December 31, | | As of June 30, | | | 2025 | | 2026 | | | US$ | | US$ | WuXi Biologics (Cayman) Inc. (a) | | 10,118,661 | | — | WuXi AppTec Group(a) | | 228,539 | | — | Total amounts due to related parties | | 10,347,200 | | — |
As of December 31, 2025, the amounts due to related parties represented payables for the CRO and CDMO services. | c) | The Group had the following related party transactions during the six months ended June 30, 2025 and 2026: |
| | | | | | | For the Six Months Ended June 30, | | | 2025 | | 2026 | | | US$ | | US$ | WuXi Biologics (Cayman) Inc(a). | | 1,123,145 | | 227,663 | WuXi AppTec Group(a) | | 128,133 | | 19,824 | Certain senior management personnel | | 6,013 | | 5,976 | | | 1,257,291 | | 253,463 |
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