| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| HUANG HONGFEI | Chief Financial Officer | TOWER B, HONGQIAO LIANHE BUILDING, NO. 99 KAIHONG ROAD, CHANGNING DISTRICT, SHANGHAI, CHINA | /s/ Hongfei Huang | 18 Mar 2026 | 0002105424 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | CHA | Class A Ordinary Shares | 200,000 | 18 Mar 2026 | By Golden Magnificence Investment Limited | F1 | |||||
| holding | CHA | American Depositary Shares | 16,000 | 18 Mar 2026 | By Spouse | F2 | |||||
| holding | CHA | Restricted Stock Unit | 38,360 | 18 Mar 2026 | Direct | F3 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | CHA | Employee Stock Options (Right to buy) | 18 Mar 2026 | Class A Ordinary Shares | 1,013,195 | $3.76 | Direct | F4 |
| Id | Content |
|---|---|
| F1 | Golden Magnificence Investment Limited, a company organized and existing under the laws of British Virgin Islands controlled by Golden Wings Investment Limited, which in turn is controlled by Lu Golden Wings Trust, a trust managed by Vista Trust (Singapore) Pte. Limited as trustee. Under the terms of the trust, Mr. Hongfei Huang retains the investment power with respect to the assets of the trust. |
| F2 | Each American Depositary Share ("ADS") represents one Class A Ordinary Share. |
| F3 | 38,360 Class A Ordinary Shares subject to the restricted stock unit will vest on each anniversary commencing from June 15, 2026 with 9,590 Class A Ordinary Shares vest on each anniversary. |
| F4 | Represents an option to purchase 1,013,195 Class A Ordinary Shares, with 253,298 Class A Ordinary Shares subject to the option vesting on October 10, 2025, and 253,299 Class A Ordinary Shares subject to the option vesting on October 10, 2026, October 10, 2027, and October 10, 2028, respectively. |