Hydrograph Clean Power Inc. — Board/Management Information 2025

Aug 19, 2025

FORM 51-102F3
MATERIAL CHANGE REPORT

1. Name and Address of Company
   HydroGraph Clean Power Inc. (the "Company" or "HydroGraph")
   1100 – 1199 West Hastings Street
   Vancouver, BC B6E 3T5

2. Date of Material Change
   August 13, 2025

3. News Release
   A news release disclosing the material change was disseminated through various approved public media and filed on SEDAR+ on August 19, 2025.

4. Summary of Material Change
   On August 19, 2025, HydroGraph announced the appointment of Cordell Bennigson as an independent director of the Company.

5.1 Full Description of Material Change
On August 19, 2025, HydroGraph announced the appointment of Cordell Bennigson as an independent director of the Company.

5.2 Disclosure for Restructuring Transactions
Not applicable.

1. Reliance on subsection 7.1(2) of National Instrument 51-102
   The report is not being filed on a confidential basis.

2. Omitted Information
   No significant facts have been omitted from this Material Change Report.

3. Executive Officer
   For further information, contact:
   Kjirstin Breure, Chief Executive Officer and President
   kjirstin.breure@hydrograph.com
   (480-267-2556)

4. Date of Report
   This report is dated August 19, 2025.

CAN: 58031655.2