Avalon GloboCare Corp. Watch

from 8-K 1 page This Waiver (“Waiver”) With Respect to the Senior Secured Promissory Note, Dated June 5, 2024 (The “Note”), Is Entered Into as of July 28, 2025 (The “Execution Date”), by and Between Avalon GloboCare Corp., a Delaware Corporation (The “Company”) and Mast Hill Fund, L.P., a Delaware Limited Partnership (“Holder”). the Company and the Holder Entered Into the Note Pursuant to a Securities Purchase Agreement Dated June 5, 2024 (The “Agreement”). Each of the Company and Holder Is a “Party” to This Waiver and the Company and the Holder, Collectively, the “Parties” Hereto. the Parties Hereto Hereby Agree as Follows: 1. the Maturity Date (As Defined in the Note) of the Note Shall Be Extended to August 31, 2025, Effective as of June 5, 2025. 2. Except as Set Forth Above, All of the Terms, Conditions and Provisions of the Note and Agreement Shall Be and Remain in Full Force and Effect. Capitalized Terms Used but Not Defined Herein Shall Have the Meanings Given to Them in the Note. in Witness Whereof, the Parties Hereto Have Caused This Waiver to Be Executed on the Execution Date. Company: Avalon GloboCare Corp. By: /S/ Luisa Ingargiola Name: Luisa Ingargiola Title: Chief Financial Officer Holder: Mast Hill Fund, L.P. By: /S/ Patrick Hassani Name: Patrick Hassani Title: Chief Investment Officer

from 8-K 15 pages Securities Purchase Agreement

from 8-K 14 pages Registration Rights Agreement

from 8-K 28 pages Securities Purchase Agreement

from 8-K 9 pages Convertible Promissory Note

from 8-K 9 pages Convertible Promissory Note

from 8-K 9 pages Definitive Agreement

from S-4/A 13 pages Amended and Restated Executive Retention Agreement

from S-4/A 13 pages Amended and Restated Executive Retention Agreement

from S-4/A 13 pages Amended and Restated Executive Retention Agreement

from 8-K 2 pages State of Delaware Secretary of State Division of Corporations Delivered 11:17 Am 05/29/2025 Filed 11:17 Am 05/29/2025 Sr 20252773385 - File Number 5576616 Certificate of Amendment to Certificate of Designations of Preferences and Rights of Series C Convertible Preferred Stock of Avalon GloboCare Corp. a Delaware Corporation

from 8-K 1 page This Waiver (“Waiver”) With Respect to the Senior Secured Promissory Note, Dated June 5, 2024 (The “Note”), Is Entered Into as of May 29, 2025 (The “Effective Date”), by and Between Avalon GloboCare Corp., a Delaware Corporation (The “Company”) and Mast Hill Fund, L.P., a Delaware Limited Partnership (“Holder”). the Company and the Holder Entered Into the Note Pursuant to a Securities Purchase Agreement Dated June 5, 2024 (The “Agreement”). Each of the Company and Holder Is a “Party” to This Waiver and the Company and the Holder, Collectively, the “Parties” Hereto. the Parties Hereto Hereby Agree as Follows

from 8-K 10 pages Securities Purchase Agreement

from S-4 7 pages Employment Contract Private and Confidential 29 July 2019 Wong Ling Yan Philip Flat H, 16/F, Tower 4 Kwan Fung Mansion Lee King Wan Sai Wan Ho, Hong Kong Dear Mr. Wong, Letter of Appointment We Are Pleased to Offer You Employment With Yoov Internet Technology Limited (Yoov). the Offer Is Made Under the Following Terms and Conditions: 1. Job Title Chief Executive Officer 2. Commencement Date 1 August 2019 3. Basic Salary Hk$95,000 Per Month (12 Months Basis Annually) 4. Probationary Period You Shall Serve a Probationary Period of Three Months. the Probationary Period Is Depending on the Job Nature as Well as the Performance Which May Be Extended. 5. Working Hours Approximately 40 Hours Per Week. Mondays to Fridays 9:30 A.M. -6:30 P.M. You May Be Required to Work Additional Hours Outside the Hours Listed as Required in Any Business Situation on Reasonable Grounds and Notice, or if Necessary for Proper Performance of Duties

from S-4 5 pages Employment Contract Private and Confidential 10 March 2023 Mr. Lai Kam Fu (Kenny) 37/F, Flat D, Tower 5, Sky Tower, 38 Sung Wong Toi Road, Kowloon Dear Kenny, Letter of Appointmeni We Are Pleased to Offer You Employment With Yoov Internet Technology (Hk) Limited (“Yoov”). the Offer Is Made Under the Following Terms and Conditions: 1. Job Title Chief Financial Officer 2. Commencement Date 1 April 2023 3. Probationary Period You Shall Serve a Probationary Period of Three Months. the Probationary Period Is Depending on the Job Nature as Well as the Performance Which May Be Extended. 4. Working Hours Approximately 40 Hours Per Week. Mondays to Fridays 9:30 A.M. - 6:30 P.M. You May Be Required to Work Additional Hours Outside the Hours Listed as Required in Any Business Situation on Reasonable Grounds and Notice, or if Necessary for Proper Performance of Duties. 5. Lunch Hour Mondays to Fridays 12:30 P.M. - 1:45 P.M. 6 Termination During the First Month of the Probationary Period, Either Party May Terminate This Contract by Giving to the Other Party One Day’s Notice in Writing or Payment of One Day’s Basic Salary In-Lieu of Notice. for the Second or Third Month of the Probationary Period, Either Party May Terminate This Contract by Giving to the Other Party One Week’s Notice in Writing or Payment of One Week’s Basic Salary In-Lieu of Notice

from S-4 18 pages Avalon GloboCare Corp. Amended and Restated 2020 Stock Incentive Plan

from 8-K 7 pages Form of Lock-Up Agreement

from 425 7 pages Form of Lock-Up Agreement

from 425 13 pages Form of Voting and Support Agreement

from 8-K 13 pages Form of Voting and Support Agreement