Everybody Wants to Invest in Critical Mineral Startups

It’s become a well-known adage in energy circles that “critical minerals are the new oil.” As the world pushes — haltingly but persistently — toward decarbonization and electrification, minerals such as lithium, nickel, and copper have only risen in their strategic importance.

These elements are geographically concentrated, largely in spots with weighty implications for geopolitics and national security — lithium largely in South America and Australia, copper in South America, nickel in Indonesia, cobalt in the Democratic Republic of the Congo, and graphite in China. They’re also subject to volatile price swings and dependent on vast infrastructure to get them out of the ground. But without them, there are no batteries, no magnets, no photovoltaic cells, no semiconductors, no electrical wiring. It is no surprise, then, that it’s already been a big year for investment.

Sector-wide data is scarce, but the announcements are plentiful. Some of the biggest wins so far this year include the AI minerals discovery company Kobold, which closed a colossal $537 million funding round, software-driven mining developer Mariana Minerals landing $85 million in investment, rare earth magnet startup Vulcan Minerals raising $65 million, and minerals recycling company Cyclic Materials announcing plans for a commercial plant in Canada.

“The good investments are still the good investments,” Joe Goodman, co-founder and managing partner at the firm VoLo Earth Ventures, told me. “But I think the return opportunities are larger now.” VoLo’s primary bets include Magrathea, which has an electrolysis-based process to produce pure magnesium from seawater and brines and is reportedly in discussions to form a $100 million partnership for a commercial-scale demonstration plant, as well as Nth Cycle, which recovers and refines critical minerals from sources such as industrial waste and low-grade ores and is well into its first full year of commercial operations.

Much of this activity has been catalyzed by the Trump administration’s enthusiasm for critical minerals. The president has issued executive orders aimed at increasing and expediting domestic minerals production in the name of national defense, and a few weeks ago, announced its intent to issue nearly $1 billion in funding aimed at scaling every stage of the critical minerals supply chain, from mining and processing to manufacturing. As Energy Secretary Chris Wright said at the time, “For too long, the United States has relied on foreign actors to supply and process the critical materials that are essential to modern life and our national security.”

Ironically, the Trump administration is building on a foundation laid by former President Biden as part of his administration’s efforts to decarbonize the economy and expedite the energy transition. In 2022, Biden invoked the Defense Production Act to give the federal government more leeway to support domestic extraction, refining, and recycling of minerals. It also invested billions of dollars from the previous year’s Bipartisan Infrastructure Law to secure a “Made In America supply chain for critical minerals.” These initiatives helped catalyze $120 billion in private sector investments, the administration said.

While they were “motivated by radically different ideologies,” Goodman told me, the message is the same: “We care a lot about our minerals.” As he put it, “The last two administrations could not have been better orchestrated to send that message to public markets.”

Ultimately, political motivations matter far less than cash. In that vein, many companies and venture capitalists are now aligning with the current administration’s priorities. As the venture firm Andreessen Horowitz noted in an article titled “It’s Time to Mine: Securing Critical Minerals,” an F-35 fighter jet requires 920 pounds of rare earth elements, a Navy missile destroyer needs 5,200 pounds, and a nuclear-powered submarine take a whopping 9,200 pounds. Rare earths — a group of metals that form a key subset of critical minerals — are crucial components of the high-performance magnets, precision electronics, and sensors these defense systems rely on.

The military is also certainly interested in energy storage systems, including novel battery chemistries with potential to be more efficient and cost effective than the status quo. This just so happens to be the realm of many a lucrative startup, from Form Energy’s iron-air batteries to Lyten’s bet on lithium-sulfur and Peak Energy’s sodium-ion chemistry.

The Army has also gone all in on microgrids, frequently building installations that rely on solar plus storage. And batteries for use in drones, cargo planes and tactical vehicles are often simply the most practical option, given that they can operate in near silence and reduce vulnerabilities associated with refueling. “It’s much easier to get electricity into contested logistics than it is to get hydrocarbons,” Duncan Turner, a general partner at the venture capital firm SOSV, told me.

Turner has overseen the firm’s investments in minerals companies across the supply chain, a number of which focus on the extraction or refining of just one or a few minerals. For example, SOSV’s portfolio company Still Bright is developing an electrochemical process to extract copper from both high-grade ores as well as mining waste, replacing traditional copper smelting methods. The minerals recycling company XEra Energy is initially focused on reclaiming nickel from ore concentrates and used batteries, though it plans to expand into other battery materials, as well, while the metal recycling company Biometallica is developing a process to recover palladium, platinum, and rhodium from e-waste.

These startups could theoretically use their tech to go after a whole host of minerals, but Turner explained that many find the most lucrative strategy is to fine tune their processes for certain minerals in particular. “That is just a telltale sign of maturity in the market,” he told me, as companies identify their sweet spot and carve out a profitable niche.

Clea Kolster, the head of science at Lowercarbon Capital, was bullish on the potential for critical minerals investments well before the Trump administration shifted the conversation toward their role in the defense sector. “Our view was always that demand for these minerals was just going to increase,” she told me. “This administration has certainly provided a boon and validator for our thesis, but these investments were made on the basis that these would render metal production cheaper and more accessible.”

Lowercarbon was an early investor in the well-capitalized startup Lilac Solutions, first backing the company’s pursuit of a more efficient and sustainable method of lithium brine extraction in early 2020. Since then, Lilac has raised hundreds of millions in additional funding rounds — which Lowercarbon has led — and is now seeking additional capital as it plans for its first commercial lithium production plant in Utah. Lilac isn’t the firm’s only lithium bet — it’s also backing Lithios, a company developing an electrochemical method for separating lithium from brines, and Novalith, which is working on a carbon-negative process for extracting lithium from hard rock without the use of environmentally damaging acids.

Kolster admitted that in Lowercarbon’s early days, the firm “didn’t fully appreciate how significant those additional narratives would become beyond decarbonization,” pointing to critical minerals’ newly prominent role not just in defense, but also in the AI arms race. After all, no new transmission lines, transformers, gear to turn circuits on and off, or other critical grid components can be built or scaled to support the rising electricity demands of data centers without critical minerals.

Goodman told me that some generalist investors have yet to take note of this, however. “There’s large pockets of the investment community who feel like climate is out of the rotation,” he said.

“So in a way we’re experiencing a better pricing opportunity right now, access to higher quality deals.”

From here on out, he predicts we’ll see a steady stream of announcements signaling that the U.S. has secured yet another link in the minerals supply chain, which will be crucial to counter China’s global influence. “I think annually you’ll be seeing the US raise the flag and declare success on another mineral,” Goodman told me. “It might be two years after we raise the flag that a facility is actually operational. But there's going to be a cadence to us taking back our supply chain.”