Brisbane, Queensland, Australia–(Newsfile Corp. – July 9, 2026) – Graphene Manufacturing Group Ltd. (TSXV: GMG) (OTCQX: GMGMF) (“GMG” or the “Company”) is pleased to announce positive performance test results for its THERMAL XR® ENHANCE coating – now surpassing 30,000 hours of salt spray testing under test method ASTM B117-19 at an external laboratory. Figure 1 […]