NEW YORK CITY, NY / August 22, 2025 / Terra Innovatum Srl and GSR III Acquisition Corp. (Nasdaq:GSRT) have announced significant progress in the regulatory approval process for Terra Innovatum's SOLO Micro-Modular Reactor (SOLO MMR). The U.S. Nuclear Regulatory Commission $(NRC)$ is currently reviewing the comprehensive design and safety submissions. In January 2025, Terra Innovatum submitted its Regulatory Engagement Plan, and several technical documents have since been submitted and discussed with NRC staff. Key among these is the Principal Design Criteria (PDC) report, which has been accepted for full technical evaluation. The NRC aims to complete the review by the end of 2025, with a Safety Evaluation expected by April 2026. This milestone is a critical step towards the commercialization of the SOLO MMR, designed to provide scalable, off-grid power solutions.