Mr. Kirby Renton reports

NIOBIUMX CONFIRMS UPDATED OTCQB AND FRANKFURT TRADING SYMBOLS, COMPLETING ITS MARKET TRANSITION TO NIOBIUMX MINING INC.

Further to Niobiumx Mining Inc.'s news release dated July 29, 2026, that its common shares now trade under updated ticker symbols across all three of its listed markets, completing the company's market transition to Niobiumx Mining Inc.

Key highlights

• Unified identity across three markets: Niobiumx now trades under a single, consistent brand in Canada, the United States and Europe.
• Canada: Common shares trade on the Canadian Securities Exchange under NIOX, effective as of market open on July 17, 2026.
• United States: The company's OTCQB Venture Market symbol has been updated to NIOXF (formerly AFXLF).
• Europe: The company's Frankfurt Stock Exchange symbol has been updated to O7D0 (formerly O5K).

A single identity for the Shipshaw story

The updated symbols align the company's market identity with its strategic focus on its flagship Shipshaw property, a 48-claim, approximately 2,686-hectare niobium and rare-earth element property in the Saint-Honore carbonatite district of Quebec's Saguenay region. The property's nearest claim boundary lies less than two kilometres from the producing Niobec mine, North America's only operating niobium producer, and the Shipshaw carbonatite is one of only five niobium-rare earth carbonatite systems characterized by Geologie Quebec in metallogenic bulletin BM 2024-022. The property does not host a mineral resource or mineral reserve estimate. The company will provide a detailed overview of the property and its planned exploration program in forthcoming news releases.

"One name, one story, one set of symbols. Investors in Canada, the United States and Europe can now find Niobiumx under a consistent identity across every market we trade on, as we turn our full attention to advancing Shipshaw," said Kirby Renton, president, chief executive officer and director of the company.

Qualified person

The scientific and technical information in this news release has been reviewed and approved by Babak V. Azar, MSc, PGeo (OGQ No. 10876), a qualified person as defined by National Instrument 43-101 -- Standards of Disclosure for Mineral Projects. Mr. Azar is independent of the company.

This news release contains information concerning neighbouring properties in which the company has no interest. Such information was obtained from public disclosure by the owners or operators of those properties. The company's qualified person has not verified that information, and readers are cautioned that mineralization on a neighbouring property is not necessarily indicative of mineralization on the company's property.

About Niobiumx Mining Inc.

Niobiumx Mining is a Canadian mineral exploration company focused on niobium and rare-earth elements. The company's principal asset is the Shipshaw property, a package of 48 mineral claims totalling approximately 2,686 hectares in the Saguenay region of Quebec, situated within the Saguenay Graben of the Grenville geological province and characterized by a swarm of carbonatite and lamprophyre dikes. The Shipshaw carbonatite is one of five niobium-rare-earth carbonatite systems characterized by Geologie Quebec in metallogenic bulletin BM 2024-022. Niobium is designated a critical mineral by Canada, the United States, the European Union and Australia.

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