[Mariana Minerals Completes $310 Million Series B Financing, Valued at $1.5 Billion] According to Fortune, software-driven mining startup Mariana Minerals has completed a $310 million Series B financing round, led by Khosla Ventures, with participation from Andreessen Horowitz (a16z), Breakthrough Energy Ventures, Greenoaks, BHP Ventures, and Mitsubishi Corporation. Mariana Minerals' total funding has reached $400 million, with a valuation of $1.5 billion. Mariana Minerals was co-founded by Turner Caldwell in 2024, headquartered in San Francisco, and operates Copper One in Utah and Lithium One in Texas.