Secured Transportation Services (STS), a subsidiary of NANO Nuclear Energy (NASDAQ: NNE), has completed the removal and transport of a cesium-137 radioactive source from a medical facility in Manaus, Brazil. The operation took place on September 2 and was announced on October 29, 2026.
The source was installed at the Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas (HEMOAM), which used it in a Gammacell 3000 blood irradiator. The center has switched to an X-ray system through the Alternative Technologies initiative of the NNSA, the U.S. Department of Energy agency. It can therefore continue to irradiate blood without a high-activity radioactive source.
The work was carried out on behalf of the NNSA’s Office of Radiological Security and managed by the Y-12 National Security Complex. STS acted as prime subcontractor: it handled preliminary planning, field execution and transport, in coordination with Brazilian experts and authorities. The source was sealed in a certified Type B(U) container under the supervision of Brazil’s nuclear authority, ANSN. Control and chain of custody were maintained throughout the operation.
The Manaus job is the eighth radioactive source removal in Brazil under NNSA activities launched in 2023. STS president Boyd II explained that projects of this kind are built over years, not days, and depend on relationships of trust and rigorous planning.
STS joined NANO Nuclear through the May 2026 acquisition. The U.S. company is developing microreactors and fuel cycle capabilities. Through another subsidiary, Advanced Fuel Transportation (AFT), it holds the exclusive license for a patented high-capacity basket for transporting HALEU fuel, developed by three major U.S. nuclear laboratories with Department of Energy funding.
The experience STS has gained in radiological missions has practical value for NANO Nuclear’s business plan. Companies that move radioactive material on behalf of federal agencies have procedures, certifications and regulator relationships that are also needed to move advanced fuel. If the company’s microreactors reach the market, its in-house logistics will be able to rely on a team already used to working with the NNSA and foreign authorities.
