RADNOSTIX, INC (INIS)

Radnostix, Inc. is a common stock listing on OTC Markets tied to a healthcare company focused on nuclear medicine and related life sciences products. The company manufactures and distributes calibration and reference standards, cobalt-60 products, sodium iodide I-131 drug product, and radiochemicals used in clinical research and other applications in the United States and abroad. Its operations are organized into five segments: Theranostics Products, Cobalt Products, Nuclear Medicine Standards, Medical Devices, and Fluorine Products. Through these businesses, Radnostix supplies isotopically pure radiochemicals, cobalt-60 sealed sources, nuclear medicine imaging and calibration standards, and the EasyFill Automated Capsule System robotic lab device. It also works on high-purity fluoride gas qualification samples and related laboratory processes. The company sells to end users and distributors. Founded in 1995 and headquartered in Idaho Falls, Idaho, it was formerly known as International Isotopes Inc. before adopting the Radnostix name in December 2025.

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