Dallas startup Actinide becomes first to enrich uranium, producing HALEU

Dallas startup enriches Uranium

Dallas startup Actinide becomes first to enrich uranium, producing HALEU

Actinide, a Dallas-based advanced materials company, has become the first startup to enrich natural uranium into high-assay low-enriched uranium (HALEU), a fuel critical for advanced nuclear reactors but currently unavailable from domestic suppliers. Using its first-generation calutron, the company produced HALEU at 15.38% enrichment, bypassing the traditional centrifuge and deconversion bottleneck. The company plans to scale up with its second-generation system, Fortitude, aiming to reduce U.S. dependence on foreign enrichment.

America should not have to ask another country for the materials that determine whether a reactor runs or a cancer treatment gets made.
  1. peri-cl

    > "Actinide’s flagship commercial product: enriched ytterbium-176,"

    To save HN a search: a stable isotope used as a neutron capture target, to produce lutetium-177[i], used in targeted radioligand therapies[ii]. Discussed once on HN[iii].

    [i] https://isotopes.gov/Ytterbium-176_is_Available_Now

    [ii] https://en.wikipedia.org/wiki/Lutetium_(177Lu)_vipivotide_te...

    [iii] https://news.ycombinator.com/item?id=40690196 ("Radioactive drugs strike cancer with precision (knowablemagazine.org)")

  2. fodkodrasz

    So this is basically a calutron... a huge mass spectrometer. 1940s technology, upgraded with state-of-the-now control systems, and electromagnets. A formidable engineering work, but more of a breakthrough from legislation and compliance perspective possibly.

    https://en.wikipedia.org/wiki/Calutron

  3. git_rancher

    A few hundred thousand dollars worth of tech replacing what used to be a massive industrial investment is amazing. And I thought enriching uranium is something that counties with nukes go to extreme lengths to make it not accessible.

  4. ortusdux

    I've been following SuperCritical, a new startup working on Uranium extraction from sea water. My understanding is that the process is much more sustainable than mining, which makes it easier/faster to establish a domestic source vs the permits needed for a new US based mine.

    https://www.globenewswire.com/news-release/2026/08/26/335139...

  5. netik

    This is highly dangerous, right? If a bad actor possess centrifuge technology and can divert this <20% enriched uranium, they are essentially days or weeks away from achieving weapons-grade material.

    This severely reduces the "breakout time" the international community relies on to detect and stop nuclear proliferation.

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2026-08-26