On December 1, 2023, MicroPort NeuroTech Limited (Company) and MicroPort Scientific Corporation (MicroPort) agreed to renew the 2022 Master Materials Procurement Agreement; the 2022 Master Supporting Services Procurement Agreement; and the 2022 Master Catering Services Agreement (the "Existing CCTs") by entering into (i) the 2023 Master Materials Procurement Agreement; (ii) the 2023 Master Supporting Services Procurement Agreement; and (iii) the 2023 Master Catering Services Agreement (the "New CCTs"). The 2023 Master Materials Procurement Agreement: Nature of the transaction: The Group agreed to procure from or procure through the MicroPort Group and its joint ventures and associates semi-finished products of stents and delivery systems and Rapamycin (the "Materials") for use by the Group in its R&D, and production of the products. Term: From January 1, 2024 to December 31, 2026 (both dates inclusive).

Payments under the 2023 Master Materials Procurement Agreement will be made by the Group to the respective members of the MicroPort Group and its joint ventures and associates from time to time during the term of the 2023 Master Materials Procurement Agreement in accordance with each specific procurement agreement entered into between respective parties in respect of each of the Materials. The 2023 Master Supporting Services Procurement Agreement: Scope of service: The MicroPort Group and its joint ventures and associates agreed to provide the Group certain supporting services, including but not limited to animal testing services, product testing services, simulation technical services, sterilization services and administrative support services (the "Supporting Services"). Term: From January 1, 2024 to December 31, 2026 (both dates inclusive).

Payments under the 2023 Master Supporting Services Procurement Agreement will be made by the Group to the respective members of the MicroPort Group and its joint ventures and associates from time to time during the term of the 2023 Master Supporting Services Procurement Agreement in accordance with each specific procurement agreement entered into between respective parties in respect of each of the Supporting Services. The 2023 Master Catering Services Agreement: Parties: The Company and MicroPort. Scope of service: The MicroPort Group and its joint ventures and associates agreed to provide or procure the provision of catering services to the Group, including but not limited to provision of (i) daily meals for the employees; and (ii) catering services for conferences and business meals (the "Catering Services").

Term: From January 1, 2024 to December 31, 2026 (both dates inclusive). The Group shall pay the service fees on a monthly basis to the MicroPort Group and its joint ventures and associates, provided that the MicroPort Group and its joint ventures and associates shall issue the valid value-added tax invoice to the Group in a timely manner, and the Group shall pay the same amount within 15 working days upon the valid value-added tax invoice issued legally by the MicroPort Group and its joint ventures and associates.