Aug. 22 at 5:35 PM
$GSRT NEW YORK CITY, NY / ACCESS Newswire / August 22, 2025 / Terra Innovatum Srl ("Terra Innovatum," or the "Company"), a developer of micro-modular nuclear reactors, and GSR III Acquisition Corp. ( GSRT ) , a publicly traded special purpose acquisition company, today announced significant progress in the licensing process for the Company's SOLO Micro-Modular Reactor (SOLO MMR), which is currently under review by the U.S. Nuclear Regulatory Commission (NRC). Terra submitted its Principal Design Criteria (PDC) report, which outlines the reactor’s core safety and design standards.
The NRC accepted the report for full technical evaluation, and plans to issue a Safety Evaluation (SE) by April 2026.
The licensing pathway follows NUREG-1537, a framework for non-power reactors—streamlined and more predictable than traditional nuclear licensing. (Continued next post)