ASP Isotopes Inc.

ASP Isotopes develops materials and isotope enrichment technologies across three operating segments: specialist isotopes, nuclear fuels, and construction services. The specialist isotopes business separates isotopes including Carbon-14, Silicon-28, and Ytterbium-176, and produces radiopharmaceuticals via PET Labs. The nuclear fuels segment focuses on advanced fuels such as high-assay low-enriched uranium. The construction segment undertakes public civil engineering projects, such as road and drainage works. Through Renergen, the company also produces liquefied natural gas and liquid helium. Its customers include pharmaceutical developers, semiconductor companies, nuclear energy firms, and domestic natural gas consumers.

The company operates facilities across South Africa, the United Kingdom, the United States, and Hong Kong. In South Africa, it maintains isotope enrichment plants in Pretoria and gas production assets covering over 187,000 hectares in Free State Province. Civil engineering operations are located in Hong Kong. The text does not state the location of the company's headquarters.

Summary of the business section of ASP Isotopes's latest annual report, written by StockData.

“As of December 31, 2025, we employed 271 people on a full-time basis.”