Mariana Minerals uses software and modern exploration methods to discover the critical mineral deposits needed to build a more electrified world.

Products & media

Mariana Lithium One

A GWh-scale facility in development to produce battery-grade lithium salts from oil and gas produced water.

Mariana Copper One

An operating Utah copper mine and refinery being rebuilt around autonomous equipment, software control, and scrap processing.

Cosigns

Erin Price-WrightGeneral Partner at Andreessen Horowitz
“Mariana turns what today is reactive and manual into something precise, adaptive, and fast.”
Source
gerard barronChairman & CEO, The Metals Company
“The Mariana team brings an AI and software-first approach to the permitting, construction and operation of critical mineral projects, and has demonstrated their ability to fast-track capital project execution.”
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Turner CaldwellCo-founder and CEO of Mariana Minerals
“Our goal is to reduce the cost of these core inputs to the modern economy over time. That enables us to ensure that everything downstream can move as fast as humanly possible.”
Source

Team

1 person across company lists

Current Affiliates

1 person

List
Turner Caldwell2024-09

Jobs

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Funding

All fundraising announcements are based on public sources. Please contact Cosign if you believe there are any discrepancies, or claim the profile to edit.

Data current as of August 3, 2026

Leads

Participating Firms

Angels