NioCorp to Participate in Maxim Group's "Mining the Industrial Supply Chain" Conference on Apr. 21

About this update from Niocorp Developments Ltd.

NioCorp CEO Mark Smith to Participate in a Fireside Chat at 10:00 AM ET and a Critical Minerals to Alloys & Vertical Integration Panel at 1:00 PM ET CENTENNIAL, CO / ACCESS Newswire / April 15, 2026 / NioCorp Developments Ltd. ("NioCorp," "our," or the "Company") (NASDAQ:NB), a leading U.S. developer of critical minerals, is pleased to announce that Executive Chairman and CEO Mark A. Smith will participate in Maxim Group's virtual "Mining The Industrial Supply Chain" conference on Tuesday, April 21, 2026. Mr. Smith will participate in a virtual fireside chat at 10:00 AM ET, where he is expected to highlight the Elk Creek Critical Minerals Project and NioCorp's ongoing efforts to establish a secure domestic U.S. supply chain for niobium, scandium, titanium, and magnetic rare earth elements. Mr. Smith also will participate in the Critical Minerals to Alloys & Vertical Integration panel discussion at 1:00 PM ET, where he is expected to discuss the opportunities and challenges facing the U.S. as it works to establish secure domestic supply chains for these elements to support defense and industrial applications. Hosted by Tate Sullivan, Senior Research Analyst at Maxim Group, the all-day virtual conference will feature conversations on the future of critical mineral production and the industrial supply chain. Topics are expected to include the availability of private capital, including bank debt and industrial customer investments, for critical mineral projects, with a focus on price floor indications and backstop capital from the U.S. government, as well as vertical integration opportunities as mining companies explore producing solvents and specialty alloys for defense and industrial applications. The conference will be held live on Maxim Group's digital platform. Individuals can register for the free virtual conference here: https://digital.maximgrp.com/events/mining-the-industrial-supply-chain-04212026. # # # FOR MORE INFORMATION: Jim Sims, Chief Communications Officer, NioCorp Developments Ltd., (720) 334-7066, [email protected] Alex Guthrie, Director, Investor Relations, NioCorp Developments Ltd., (647) 999-0527, [email protected] @NioCorp $NB #Niobium #Scandium #rareearth #neodymium #dysprosium #terbium #ElkCreek ABOUT NIOCORP NioCorp is developing the Elk Creek Project that is expected ...

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