Premier Graphene Targets Graphene-Enhanced Asphalt as a Potential Market Larger than Cement Annual Federal Expenses in the US alone to Maintain Road Quality and Upgrade Poor Roads Exceeds $230 Billion US DollarsImperial Valley, CA, July 23, 2024 – Premier Graphene, Inc. (OTC: BIEI) announced today the commencement of testing for its partner company’s proprietary graphene-enhanced asphalt. These tests will evaluate the durability, thermal properties, cost-efficiency, and environmental impact of HGI Industri ...