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HydroGraph Appoints Robert Yancey, Ph.D. to Lead Business Development in New Government, Aerospace and Defense Division

AUSTIN, Texas, June 10, 2026 (GLOBE NEWSWIRE) -- HydroGraph Clean Power Inc. (CSE:HG) (OTCQB:HGRAF) ("HydroGraph" or the "Company") today announced the appointment of Robert Yancey, Ph.D. to a senior business