NioCorp Reaches Non-Binding Agreement with Traxys North America for Potential Purchase of All of NioCorp's Remaining Planned Products

Reaching a Definitive Agreement Positions NioCorp to Potentially Sell All of its Planned Critical Minerals Products for the First 10 Years of Operations Agreement Envisions a Separate Potential Strategic Investment by Traxys of up to $30 Million in NioCorp Traxys Plays a Key Role in President Trump's Project Vault, a Strategic U.S. Government-Industry Partnership to Facilitate Sales of Critical Minerals Between Producers and Large Manufacturers CENTENNIAL, CO / ACCESS Newswire / April 9, 2026 / NioCorp Developments Ltd. ("NioCorp ," "our ," or the "Company") (NASDAQ:NB), a leading U.S. developer of critical minerals, today announced that it has entered into a non-binding agreement (the "Term Sheet") with Traxys North America LLC ("Traxys") outlining a long-term marketing and offtake arrangement for NioCorp's remaining planned critical minerals products from its Elk Creek Critical Minerals Project (the "Elk Creek Project").