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NGEX.TO ·

Day at the Ivey Donald K. Johnson Centre in Toronto , Ontario on Thursday

Corporate Updates

NGEx Minerals Ltd.

2800 – 1055 Dunsmuir Street

Vancouver BC, Canada V7X 1L2

T +1 604 689 7842

F +1 604 689 4250

[email protected]

NGEXminerals.com

NGEx Minerals to Host Investor Day on September 25, 2025

September 11, 2025, Vancouver, British Columbia – NGEx Minerals Ltd. (“NGEx”, “NGEx Minerals” or

the “Company”) (TSX: NGEX; OTCQX: NGXXF) is pleased to announce that it will be hosting an Investor

Day at the Ivey Donald K. Johnson Centre in Toronto , Ontario on Thursday, September 25, 2025, starting

at 9:00 a.m. Eastern Standard Time.

For those wishing to attend the event in person, please RSVP to [email protected]. For those

unable to attend, a live webcast will be available through the details attached below . A recording of the

event will thereafter be available on the Company’s website, www.ngexminerals.com.

Webcast / Conference Call Details:

Date: Thursday, September 25, 2025

Time: 9:00 AM ET

Webcast: https://meetings.lumiconnect.com/400-547-467-285

About NGEx Minerals

NGEx Minerals is a copper and gold exploration company based in Canada, focused on exploration of the

Lunahuasi copper-gold-silver project in San Juan Province, Argentina, and the nearby Los Helados copper-

gold project located approximately nine kilometres to the northeast in Chile’s Region III. Both projects are

located within the Vicuña District, which includes the Caserones mine, and the Josemaria and Filo del Sol

deposits.

NGEx owns 100% of Lunahuasi and is the majority partner and operator for the Los Helados project,

subject to a Joint Exploration Agreement with Nippon Caserones Resources LLC, which is the indirect 30%

owner of the operating Caserones open pit copper mine located approximately 17 kilometres north of Los

Helados. Lundin Mining Corporation holds the remaining 70% stake in Caserones.

The Company’s common shares are listed on the TSX under the symbol "NGEX" and also trade on the

OTCQX under the symbol “NGXXF”. NGEx is part of the Lundin Group of Companies.

Additional information relating to NGEx may be obtained or viewed on SEDAR+ at www.sedarplus.ca.

For further information, please contact:

Finlay Heppenstall

VP, Corporate Development & Investor Relations

Tel: +1 (604) 806-3089

[email protected]

Additional Information

Neither the TSX nor its Regulation Services Provider (as that term is defined in the policies of the TSX )

accepts responsibility for the adequacy or accuracy of this news release.

The information contained in this news release was accurate at the time of dissemination but may be

superseded by subsequent news release(s). The Company is under no obligation, nor does it intend to

update or revise the forward-looking information, whether as a result of new information, future events

or otherwise, except as may be required by applicable securities laws.