International Isotopes Inc. Announces Name Change to Radnostix

What Happened
International Isotopes Inc. (the Company) filed an 8-K on December 31, 2025 disclosing that it filed a Certificate of Amendment in Texas on December 23, 2025 to change its corporate name to Radnostix, Inc. The board approved the name change on October 21, 2025 and a majority of shareholders approved it by written consent on November 25, 2025 (Schedule 14C filed November 26, 2025). The Company says the new name reflects its expanded focus from energy-sector isotopes to a broader portfolio of radioisotopes, theranostics, and healthcare-related products.

Key Details

• Certificate of Amendment filed in Texas: December 23, 2025.
• Board approval: October 21, 2025; shareholder written consent: November 25, 2025; Schedule 14C filed November 26, 2025.
• Press release announcing the name change issued December 31, 2025 (Exhibit 99.1).
• Common stock will continue to trade under the OTCQB ticker symbol "INIS"; shareholders are not required to take any action on stock certificates.

Why It Matters
The name change signals a strategic repositioning toward healthcare-focused radioisotopes and theranostics. For investors, the change itself does not alter trading symbol or require certificate exchanges, but it highlights the company’s stated shift in business focus — useful context when evaluating future product announcements, partnerships, or financial results.