Mercuria Energy Group, an energy and commodities company, led a $30m Series B funding round in ClearFlame Engine Technologies, a motor vehicle manufacturing company, with participation from Rio Tinto and WIND Ventures. "ClearFlame continues gaining momentum with technology that heavy-duty equipment users can deploy to more quickly and affordably meet critical ESG goals. Federal Department of Energy funding moved us from concept to patent. Series A funding propelled us from patent to pilot. This latest investment round can accelerate us from pilot to proven product in multiple markets, starting with long-haul trucks," BJ Johnson, ClearFlame CEO and Co-Founder.