VANCOUVER, British Columbia, June 18, 2025 (GLOBE NEWSWIRE) -- HydroGraph Clean Power Inc. (CSE: HG) (OTCQB: HGRAF) (the "Company" or "HydroGraph") a leading producer of ultra-pure graphene and advanced nanomaterials, today announced the selection of Kjirstin Breure as Board Chair, effective June 17, 2025. Tom Wilkinson, Independent Director of HydroGraph stated: "Kjirstin's leadership has been instrumental to HydroGraph's success over the last few years, guiding the company through development stage to now ...