Critical Materials Manufacturing

The Next Frontier of U.S. Strategic Tech Investing

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The blog makes the case that U.S. competitiveness in energy, AI, and defense can hinge on rebuilding domestic capabilities to extract, refine, and manufacture products from critical materials at industrial scale, not just on advances in software or finished products.

America’s next era of industrial leadership may not be defined solely by software, AI models, or even finished hardware- it will be defined upstream, at the level of materials. From batteries and semiconductors to grid infrastructure and defense systems, the United States’ ability to manufacture at scale increasingly hinges on access to critical materials produced with the right purity, consistency, and volume.

For strategic tech investors, this is emerging as a distinct and underappreciated opportunity: critical materials manufacturing as venture-scale infrastructure.

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Why Critical Materials Matter Now

Critical materials are those that are both essential to modern energy and industrial technologies and exposed to significant supply-chain risk. Today, many of the materials most important to electrification, advanced manufacturing, and national security (graphite, silicon, gallium, cobalt, dysprosium, iridium, etc) are produced or refined predominantly outside the United States.

This creates a structural vulnerability. As demand accelerates across EVs, grid storage, AI compute, and defense applications, downstream manufacturers increasingly need domestic suppliers who can meet exacting technical specifications and deliver at scale.

The DOE published a medium term critical materials graph to study importance to energy V supply risk in 2020, highlighting the materials that are critical to industry.

A New Venture Pattern: Process Innovation, Not Discovery

What’s notable about this wave of companies is that they are not reinventing chemistry from scratch. Instead, the most compelling startups are:

  • Taking known industrial processes (smelting, pyrolysis, chemical vapor deposition, purification)
  • Applying modern control, materials science, and process engineering
  • Pushing them to a new performance frontier
Examples include:
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    Graphite:

    Novel purification and shaping processes that achieve battery-grade consistency without relying on foreign refining.
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    Silicon and Silicon Carbide:

    Advanced thermal and plasma-based processes for producing high-purity silicon and silicon carbide materials at industrial scale.
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    Lithium:

    Direct lithium extraction processes that use advanced sorbents, membranes, or electrochemical separation to selectively pull lithium from brines, followed by streamlined conversion into lithium carbonate or hydroxide.
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    Nickel:

    Modern hydrometallurgical processes (such as optimized high-pressure acid leaching or low-temperature leach systems) that convert laterite or mixed feedstocks into battery-grade nickel sulfate, improving purity, recovery rates, and economics for cathode manufacturing.
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    Cobalt:

    Advanced refining and separation techniques that upgrade mixed metal intermediates or recycled feedstocks into high-purity cobalt compounds, using improved solvent extraction, crystallization control, and impurity removal.

These companies are not selling pilot-scale novelty—they are building industrial systems designed to plug directly into existing materials value chains.

The Commercial North Star: Selling Up the Chain

The goal is not consumer adoption or even direct OEM relationships. The most successful critical materials startups often are designed to sell up the chain to:

  • Battery cell and cathode manufacturers
  • Polysilicon and wafer producers
  • Advanced materials suppliers
  • Defense and aerospace primes
This requires hitting three non-negotiables:
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    Purity:

    Meeting or exceeding stringent technical specs.
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    Quantity:

    Delivering at industrial scale, not lab scale.
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    Reliability:

    Consistent output over time.

When achieved, this creates highly durable demand. Once a material is qualified into a manufacturing process, switching costs are high and contracts tend to be long-term.

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Where Startups Should Be Building

The Department of Energy’s critical materials assessments provide a roadmap for founders. Particularly attractive areas sit at the intersection of:

  • High supply-chain risk
  • High importance to energy and industrial systems
  • Rapidly growing downstream demand

Materials such as natural graphite, silicon, silicon carbide, gallium, cobalt, dysprosium, and rare earth elements consistently surface as both critical and near-critical across short- and medium-term horizons.

Opportunity is especially strong in:

  • Domestic refining and purification of materials historically mined or processed abroad.
  • Process intensification that lowers cost, energy use, or emissions.
  • Modular, scalable production systems that can be deployed incrementally.

Why This Is a Strategic Tech Investment Theme

This category sits squarely at the intersection of venture capital, industrial policy, and national resilience.

For investors, critical materials manufacturing offers:

  • Exposure to trillion-dollar end markets (energy, semiconductors, defense)
  • Strong policy tailwinds and non-dilutive funding pathways
  • Deep technical moats rooted in process know-how
  • Customers with urgent, long-term demand

For the U.S., it represents a pathway to rebuild industrial capability without attempting to recreate 20th-century manufacturing models wholesale.

The Bottom Line

The next generation of strategic tech companies won’t just build better products—they’ll build the materials foundations those products depend on.

Critical materials manufacturing is emerging as a new venture category defined by process excellence, industrial scale, and national importance. As demand accelerates and supply chains tighten, the companies that can reliably produce the right materials, at the right quality, in the right geographies are positioned to become indispensable.

At Alumni Ventures, we believe this is one of the most important frontiers in U.S. strategic technology investing—and one where early, technically informed capital can have outsized impact.

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Our Portfolio in Action

This thesis is already taking shape across the Alumni Ventures portfolio. One example is Radical AI, a materials intelligence company building an AI-native platform to design, test, and validate next-generation materials at unprecedented speed and scale. Radical combines large-scale simulation with a self-driving lab, enabling rapid discovery of high-performance alloys and materials critical to aerospace, defense, energy, and advanced manufacturing. Rather than selling software alone, Radical’s model is designed to translate discovery into real-world materials that can be qualified and sold up the industrial supply chain—exactly the kind of platform needed to unlock domestic production of critical materials. In 2024, the company signed a memorandum of understanding with the U.S. Department of Energy, underscoring the strategic importance of its platform to national critical materials priorities—specifically the need to move beyond lab-scale innovation toward domestically produced, qualification-ready materials that can scale into real manufacturing supply chains.

At Alumni Ventures, we believe this is one of the most important frontiers in U.S. strategic technology investing—and one where early, technically informed capital can have outsized impact.


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This communication is from Alumni Ventures, a for-profit venture capital company that is not affiliated with or endorsed by any school. It is not personalized advice, and AV only provides advice to its client funds. This communication is neither an offer to sell, nor a solicitation of an offer to purchase, any security. Such offers are made only pursuant to the formal offering documents for the fund(s) concerned, and describe significant risks and other material information that should be carefully considered before investing. For additional information, please see here. Achievement of investment objectives, including any amount of investment return, cannot be guaranteed. Co-investors are shown for illustrative purposes only, do not reflect all organizations with which AV co-invests, and do not necessarily indicate future co-investors. Example portfolio companies shown are not available to future investors, except potentially in the case of follow-on investments. Venture capital investing involves substantial risk, including risk of loss of all capital invested. This communication includes forward-looking statements, generally consisting of any statement pertaining to any issue other than historical fact, including without limitation predictions, financial projections, the anticipated results of the execution of any plan or strategy, the expectation or belief of the speaker, or other events or circumstances to exist in the future. Forward-looking statements are not representations of actual fact, depend on certain assumptions that may not be realized, and are not guaranteed to occur. Any forward-looking statements included in this communication speak only as of the date of the communication. AV and its affiliates disclaim any obligation to update, amend, or alter such forward-looking statements, whether due to subsequent events, new information, or otherwise.