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Khosla Ventures invests in Mariana Minerals

Funding Provisional 95% confidence first seen

Khosla Ventures led a $310 million Series B funding round for Mariana Minerals, a software-focused mining startup. The company uses technology to extract critical metals including copper and lithium needed for AI infrastructure and electrification, with operations including a restarted copper mine in Utah and a lithium mine in Texas expected to reach production in 2027.

The deal

Mariana Minerals $310 million Series B · announced 5 Aug 2026

Investors Khosla Ventures a16z Andreessen Horowitz

Deal terms as reported in the coverage below.

Decision brief

What changed
Khosla Ventures led a $310 million Series B round in Mariana Minerals, a software-driven mining startup that has restarted a copper mine in Utah (targeting 50,000 metric tons/year) and is developing a lithium mine in Texas expected to reach production in 2027.
Why it matters
This signals growing investor concern that critical mineral supply chains — copper and lithium — could become bottlenecks for AI infrastructure buildout and electrification, prompting venture capital to fund upstream physical supply solutions rather than just compute or software. If successful, cheaper, more efficient extraction could ease input costs for data centers, EVs, and grid infrastructure, but the long lead time to production (2027) means near-term supply risk remains.
Affected roles
CEO CFO COO CTO
Evidence
Sourced from a single Fortune Startups article; no independent corroboration from other outlets is provided, and financial/operational details (funding amount, production targets, timeline) come directly from that one report.
What remains uncertain
It is unverified whether the software-driven mining approach will actually lower costs or scale as claimed, and no third-party validation of production targets or timelines is provided; the extent to which this addresses broader industry-wide mineral shortages versus a single company's supply is unclear.
Monitor next
Watch for confirmation of copper production ramp-up at the Utah mine and any updates on the Texas lithium mine's progress toward 2027 commercial output.

Analytical support, not advice — assumptions and open questions stated above.

Source coverage

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