When multiple layers of graphene are stacked together, it makes graphite, a key battery component and a material classed as a “critical mineral” by the U.S. government. Photo by Adrian Wyld/The Canadian Press/Postmedia files

After a year in which its stock price soared more than 2,000 per cent, Canada’s HydroGraph Clean Power Inc. is planning to change its domicile to the United States and list on the Nasdaq to tap deeper capital markets and defence-industry demand .

The Vancouver-based company , founded in 2017, makes graphene , a form of carbon just one atom thick that boasts remarkable strength and electrical conductivity. The company is betting on a patented “explosion synthesis process” to make graphene for use in composite materials, plastics, lubricants and other input

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