Company: GIGGU
Filing Date: 2025-11-12
Form Type: S-4
Source: 0001193125-25-277896
Chunk: 513

Company: GigCapital7 Corp.
Filing Date: 2025-11-12
Form: S-4
Chunk 513
---
 in the Hadron Halo is slightly more expensive than conventional LEU fuel, the infrequent refuel schedule and improved capacity factor make overall fuel expenses competitive. |

| • |     | Nuclear Waste Considerations: Like all fission reactors, the Hadron Halos will generate used nuclear fuel (spent fuel) which must be managed safely. Each Hadron Halo will discharge a relatively small volume of spent fuel every 10 years when the nuclear fuel package is removed. We intend to store spent assemblies in spent fuel pools and subsequent dry storage canisters. The dry cask storage units that we plan to use are already approved by the NRC. In the longer term, we are very interested in advanced fuel recycling technologies that could reprocess used fuel to extract remaining energy value. Industry studies indicate that the energy content in existing used nuclear fuel stockpiles is enormous. Existing LWR reactors in the U.S have produced 90,000 metric tons of spent nuclear fuel thus far, and |

292

| this increases each year. However, if fully recycled, this spent fuel could potentially power the country for over a century. |

Our fuel supply plan is to secure a supply of LEU+ fuel, likely via long-term contracts with uranium enrichment facilities. Fuel will not be a major bottleneck given the concerted efforts by the U.S. and other countries to increase LEU+ fuel production. In addition, our membership in industry groups and consortia helps ensure we stay at the forefront of nuclear fuel supply developments. Manufacturing and Supply Chain To deliver the Hadron Halos at scale, we will work with established manufacturing partners. for approximately the first five years of development to produce our first units. In the following five to ten years, , we plan to develop a dedicated manufacturing supply chain with Hadron-owned production facilities. Our manufacturing and supply chain strategy includes the following elements:

| • |     | Qualified Supplier Network: For the Hadron Halo supply chain, we are prioritizing companies that are already nuclear-qualified, meaning they meet stringent quality and safety standards set out by the government (NRC) and industry associations, such as the American Society of Mechanical Engineers (“ASME”). For instance, we plan to source major components like reactor pressure vessels from experienced manufacturers, such as those who have supplied the Navy or DOE research reactors. These large suppliers hold the ASME N-stamp, a key certification from ASME that authorizes them to fabricate safety-critical nuclear components. To ensure the reliability of all safety-related items, our suppliers must implement a rigorous