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Mariana Minerals Co.

Other EnergyCritical MineralsMiningSoftware-First
๐Ÿ“ SAN FRANCISCO, CA
StreetZero Signal 61
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About Mariana Minerals Co.

Mariana Minerals is a software-first, vertically integrated critical minerals company that builds and operates mines and refineries across the metals that the modern economy depends on. The company aims to accelerate critical minerals production and is focused on shrinking the usual 12-year runway for mines to just 10 years. Mariana Minerals is committed to using technology, including AI and autonomous systems, to improve the efficiency and sustainability of its operations. With a strong leadership team, including CEO Turner Caldwell, who previously led Tesla's metals and minerals team, Mariana Minerals is well-positioned to make a significant impact in the critical minerals sector.

LATEST FUNDINGPrivate Placement (Form D)
$310.5M
Announced 2026-08-06
TOTAL RAISED$395M
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Key highlights

  • Raised $310 million in Series B financing
  • Led by Khosla Ventures
  • Software-first approach to critical minerals production
  • Vertically integrated business model
  • Aims to shrink the usual 12-year runway for mines to just 10 years

Tech stack

AIAutonomous Systems

Source document & SEC filing

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