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Mariana Minerals develops critical mineral extraction projects for energy, technology, and defense applications.
Founded in 2024 and based in San Francisco, US, Mariana Minerals focuses on extracting lithium, copper, nickel, cobalt, and graphite for batteries, electronics, electric vehicles, and renewable energy systems. It uses software to support operational efficiency. In its latest Series B round, the company raised USD 310.00 mn, led by Khosla Ventures, with Andreessen Horowitz and Breakthrough Energy Ventures among the investors.
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