IDAHO FALLS, Idaho, Dec. 31, 2025 /PRNewswire/ -- International Isotopes Inc. ("INIS" or the "Company") (OTCQB:INIS) today announced that it has filed a Certificate of Amendment in the State of Texas to change our legal name to Radnostix, Inc. Effective immediately, we will officially begin to rebrand all of our operations under the Radnostix name. INIS was started in 1995 as a company focused on irradiation and manufacturing of industrial radioisotope products. Over the years, our focus has evolved, and t ...