Deep Fission and Youngquist Brothers Announce Collaboration on Deep, Large-Diameter Borehole Drillin

[Marlin]

Deep Fission and Youngquist Brothers Announce Collaboration on Deep, Large-Diameter Borehole Drilling for Underground Nuclear Reactor Deployment

https://www.businesswire.com/news/home/20260921829551/en/Deep-Fission-and-Youngquist-Brothers-Announce-Collaboration-on-Deep-Large-Diameter-Borehole-Drilling-for-Underground-Nuclear-Reactor-Deployment

[Core Content]

Deep Fission and Youngquist Brothers are partnering to develop specialized drilling methods for underground small modular reactor installations. The collaboration leverages commercial drilling expertise to construct the deep, wide boreholes required for housing pressurized water reactors about a mile underground. The companies recently completed an equipment demonstration in Florida using a full-size prototype canister.

FORT MYERS, Fla., September 21, 2026--Deep Fission, Inc. (Nasdaq: FISN) ("Deep Fission" or the "Company"), an advanced nuclear energy company working to place small modular pressurized water reactors (SMRs) in boreholes approximately one mile underground, today announced a collaboration with Youngquist Brothers, LLC ("Youngquist"), a commercial...

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Deep Fission and Youngquist Brothers are collaborating to advance deep, large-diameter borehole drilling for Deep Fission's underground reactor deployment model.

Related coverage at Yahoo Finance:
https://uk.finance.yahoo.com/news/deep-fission-youngquist-brothers-announce-113000024.html