Terra Innovatum advances licensing process for SOLO Micro-Modular Reactor

Terra Innovatum and GSR III Acquisition (GSRT) announced progress in the licensing process for the Company’s SOLO Micro-Modular Reactor, which is currently under review by the U.S. Nuclear Regulatory Commission. In January 2025, before announcing its intention to go-public and signing a Business Combination Agreement with GSR III Acquisition Corp, Terra Innovatum submitted its Regulatory Engagement Plan to the NRC, establishing a structured framework for regulatory interactions under the non-power reactor licensing pathway outlined in NUREG-1537. Since then, the Company has been executing the plan as per its time-table and it has been advancing regulatory discussions with the agency consistently. Several technical documents, including white papers and topical reports, have been submitted by the Company and formally discussed with NRC staff. By addressing individual chapters of the final licensing application in advance, these submittals allow the NRC staff to evaluate key technical and safety elements earlier in the process. This stepwise approach not only provides detailed insight into the design and safety features of the SOLO MMR but also helps streamline the overall review by reducing potential bottlenecks once the full application is filed. A key document filed, was the submission of the Principal Design Criteria topical report for the SOLO MMR. The PDC defines the fundamental safety and design requirements that form the basis for the reactor’s licensing review. Following its readiness review, the NRC accepted the report for full technical evaluation. In a formal letter dated July 30, the NRC indicated its intent to complete the review process by the end of 2025 and to issue a Safety Evaluation of the PDC report by April 2026.