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NGEX.TO ·

NGEx Minerals Announces C$100 Million Private Placement

Financings

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

NOT FOR DISTRIBUTION TO U.S. NEWS WIRE SERVICES OR FOR RELEASE,

PUBLICATION, DISTRIBUTION OR DISSEMINATION DIRECTLY,

OR INDIRECTLY, IN WHOLE OR IN PART, IN OR INTO THE UNITED STATES

NGEx Minerals Announces C$100 Million Private Placement

September 29, 2025, Vancouver, British Columbia – NGEx Minerals Ltd. (“NGEx” , “NGEx Minerals” or

the “Company”) (TSX: NGEX ; OTCQX: NGXXF ) is pleased to announce that it intends to sell on a non -

brokered private placement basis, an aggregate of up to 4,000,000 common shares of the Company (the

"Common Shares") at a price of C$ 25.00 per Common Share for gross proceeds of up to C$ 100 million

(the "Private Placement").

Net proceeds of the Private Placement will be used towards furthering exploration programs at the

Lunahuasi project in San Juan Province, Argentina, including, if permits are approved, construction of an

exploration adit including any supporting infrastructure, work in support of an application for inclusion of

the Lunahuasi project under Arge ntina’s RIGI ( “Regimen de Incentivos para Grandes Inversiones ” or

Incentive Regime for Large Investments ), continued exploration and maintenance of the Company’s Los

Helados project located in Region III, Chile, as well as for general corporate and working capital purposes.

Completion of the Private Placement will be subject to regulatory approval, including the approval of the

Toronto Stock Exchange (the “TSX”) and other customary regulatory approvals and closing conditions for

a transaction of this nature including, but not limited to, execution of subscription agreements between

the Company and the subscribers. The Common Shares will be issued on a private placement basis

pursuant to exemptions from prospectus requirements under applicable securities laws and will be

subject to a statutory hold period of four months and one day from the date of issuance. The Company

may pay a finder's fee of 5% in connection with a portion of the Private Placement. The Company

anticipates closing of the Private Placement as soon as practicable subject to receipt of all necessary

regulatory approvals.

Trusts settled by the late Adolf H. Lundin (the “Lundin Family Trusts”) have indicated their intention to

participate in the Private Placement. The Lundin Family Trusts have indicated their intention to maintain

their interest in the Company by subscribing for up to C$100.0 million of the Private Placement. Any

participation in the Private Placement by the Lundin Family Trusts would be considered to be a "related

party transaction" as defined under Multilateral Instrument 61 -101 - Protection of Minority Security

Holders in Special Transactions ("MI 61-101"), as a private entity controlled by the Lundin Family Trusts is

currently the Company’s largest shareholder . The transaction will be exempt from the formal valuation

and minority shareholder approval requirements of MI 61 -101 as neither the fair market value of any

Common Shares issued to or the consideration paid by such persons will exceed 25% of the Company's

market capitalization.

This news release shall not constitute an offer to sell or the solicitation of an offer to buy the securities

described herein in the United States (the “U.S.”) nor shall there be any sale of the securities in any

jurisdiction in which such offer, solicitation or sale would be unlawful. The securities described herein have

not been and will not be registered under the U.S. Securities Act of 1933, as amended (the "1933 Act"), or

any state securities laws and may not be offered or sold in the U.S., or to the account or benefit of a U.S.

person or a person in the U.S. , absent registration or an applicable exemption from the registration

requirements.

SPIN-OUT OF LUNR ROYALTIES

The Company anticipates that closing of the Private Placement will occur prior to the completion of the

previously announced spin-out transaction pursuant to which the Company will spin -out net smelter

returns royalties on the Lunahuasi and Los Helados Projects into a wholly-owned subsidiary of NGEx, LunR

Royalties Corp. (“LunR Royalties“), by way of a statutory plan of arrangement under the Canada Business

Corporation Act (the “Arrangement“). The Arrangement involves, among other things, the exchange of

the existing Common Shares and the distribution of common shares of LunR Royalties (the “LunR Royalties

Shares”) to shareholders of the Company (“ NGEx Shareholders ”) such that each NGEx Shareholder

immediately prior to the effective time of the Arrangement will hold one new common share of NGEx

(each, a “New NGEx Share”) for each Common Share held on the effective date of the Arrangement (the

“Effective Date”) and 1/4 of a LunR Royalties Share for each Common Share held on the Effective Date.

NGEx Shareholders holding Common Shares as of the business day immediately prior to the Effective Date

will be entitled to receive the New NG Ex Shares and the LunR Royalties Shares pursuant to the

Arrangement. Accordingly, if the closing of the Private Placement occurs prior to the completion of the

Arrangement, the Common Shares issued pursuant to the Private Placement will be eligible to participate

in the Arrangement on the same basis as the other outstanding Common Shares.

As previously announced, the Arrangement was approved by the NGEx S hareholders at the special

meeting of NGEx Shareholders held on September 12, 2025 (the “Meeting”), and a final order approving

the Arrangement was obtained from the Supreme Court of British Columbia on September 18, 2025. The

Arrangement is subject to customary closing conditions for a transaction of this nature. Subject to the

satisfaction or waiver of the conditions to implementing the Arrangement as set out in the arrangement

agreement dated July 21, 2025 between NGEx an d LunR Royalties, as amended, the Arrangement is

anticipated to be completed in the fourth quarter of 2025.

The Effective Date of the Arrangement have not yet been set by the Company. However, once determined,

it will be communicated by the Company by way of a news release.

The terms of the Arrangement, including the conditions to implementing the Arrangement, and the

procedures to be followed by NGEx Shareholders in order to receive the securities that they are entitled

to receive pursuant to the Arrangement, are further des cribed in NGEx’s management information

circular dated August 12, 2025 (the “Circular”) available on NGEx’s website and under its profile on

SEDAR+ at www.sedarplus.ca.

LETTER OF TRANSMITTAL

The Company would like to remind registered NGEx Shareholders (“Registered NGEx Shareholders”) that,

in order to receive the securities that they are entitled to receive pursuant to their Arrangement, such

Registered NGEx Shareholders must duly complete an d execute a letter of transmittal ( the “Letter of

Transmittal”) in accordance with the instructions included therein, and deliver it to the depositary for the

Arrangement, Computershare Investor Services Inc. (the “Depositary”), together with the certificate(s)

and direct registration system statement(s), as applicable, representing such Registered NGEx

Shareholder’s Common Shares, and such additional documents and instruments as the Depositary may

reasonably require. Additional details on the procedures to be followed by Registered NGEx Shareholders

in or der to r eceive the securities that they are entitled to receive pursuant to the Arrangement are

contained in the Circular, which is available on NGEx’s website and under its profile on SEDAR+ at

www.sedarplus.ca.

The Letter of Transmittal was mailed to each Registered NGEx Shareholder as of August 5, 2025, the record

date for the Meeting, as part of the materials that were mailed to NGEx Shareholders in connection with

the Meeting. The Letter of Transmittal is also available on NGEx’s website and under its profile on SEDAR+

at www.sedarplus.ca.

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.

Cautionary Note Regarding Forward-Looking Statements

Certain statements made and information contained herein in the news release constitutes "forward -looking

information" and "forward-looking statements" within the meaning of applicable securities legislation (collectively,

"forward-looking information"). A ll statements other than statements of historical facts included in this document

constitute forward-looking information, including but not limited to, statements regarding the ultimate size of the

Private Placement, the closing of the Private Placement (including receipt of all required regulatory approvals), the

participation and support of existing shareholders in the Private Placement, the anticipated use of net proceeds

resulting from the Private Placement , the timing, structure and completion of the Arrangement, the satisfaction of

the conditions precedent to the Arrangement, the expected timing of closing of the Arrangement , the eligibility of

Common Shares issued pursuant to the Private Placement to participate in the Arrangement and the timing fo r the

announcement of the Effective Date . Words such as "plans", "expects" or "is expected", "budget", "scheduled",

"targets", "estimates", "forecasts", "intends", "anticipates" or "believes", or variations of such words and phrases or

statements that certain actions, events, conditions or resul ts "will", "may", "could", "would", "might" or "will be

taken", "occur" or "be achieved" or the negative connotations thereof and similar expressions identify forward -

looking information.

Forward-looking information is necessarily based upon various estimates and assumptions including, without

limitation, the expectations and beliefs of management with regards to the closing of the Private Placement

(including receipt of all required regulatory approvals and the expected timing thereof ), the number of Common

Shares sold pursuant to the Private Placement, the insider participation in the Private Placement, the expectations

regarding existing shareholder support and backstops, the use of proce eds of the Private Placement, the focus and

objective of future work programs, the expected results or success of future work programs, the growth strategy of

the Company, the expected timing for the satisfaction of the conditions of the Arrangement and the completion of

the Arrangement. Although the Company believes that these factors and expectations are reasonable as at the date

of this document, in light of management's experience and perception of current conditions and expected

developments, these sta tements are inherently subject to significant business, economic and competitive

uncertainties and contingencies. Known and unknown risks, uncertainties and other factors may cause actual results

or events to differ materially from those anticipated in suc h forward-looking statements and undue reliance should

not be placed on such statements and information. Such factors include, without limitation, receipt of required

regulatory approvals for, and the closing of, the Private Placement, insider participatio n in the Private Placement,

the failure to satisfy or waive the closing conditions to the Arrangement; Mineral Resources estimates, estimations

of costs, and permitting time lines; ability to obtain surface rights and property interests; currency exchange rate

fluctuations; requirements for additional capital; changes to government regulation of mining act ivities;

environmental risks; unanticipated reclamation or remediation expenses; title disputes or claims; limitations on

insurance coverage; material adv erse changes to the current price of and/or demand for commodities, particularly

copper, gold and silver; material adverse changes to general business and economic conditions, including in the

jurisdictions in which the Company’s mineral property interests reside; material labour disputes, accidents, or failures

of equipment; and those described in the Risk Factors section of the most recent annual information form and annual

management discussion and analysis, and risks, uncertainties and other factors ide ntified in the Company's periodic

filings with Canadian securities regulators. which are available on SEDAR+ at www.sedarplus.ca under the Company's

profile.

Forward-looking information is necessarily based upon various estimates and assumptions including, without

limitation, the expectations and beliefs of management with respect to the closing of the Private Placement (including

receipt of all required regulatory approvals), the number of Common Shares sold pursuant to the Private Placement,

the insider participation in the Private Placement, the expectations regarding existing s hareholder support and

backstops, the use of proceeds of the Private Placement, the focus and objective of future work programs, the

expected results or success of future work programs, the closing of the Arrangement, and the growth strategy of the

Company. Although the Company believes that these factors and expectations are reasonable as at the date of this

document, in light of management’s experience and perception of current conditions and expected developments,

these statements are inherently subject to significant business, economic and competitive uncertainties and

contingencies. Known and unknown risks, uncertainties and other factors may cause actual results or events to differ

materially from those anticipat ed in such forward -looking statements and undue reliance should not be placed on

such statements and information. Such factors include, without limitation: receipt of required regulatory approvals

for, and the closing of, the Private Placement, insider par ticipation in the Private Placement, the failure to satisfy or

waive the closing conditions to the Arrangement; the emergence or intensification of infectious diseases, such as

COVID 19, and the risk that such an occurrence globally, or in the Company’s operating jurisdictions and/or at its

project sites in particular, could impact the Company’s ability to carry out the program and could cause the program

to be shut down ; estimations of costs, and permitting time lines; ability to obtain environmental permi ts, surface

rights and property interests in a timely manner; currency exchange rate fluctuations; requirements for additional

capital; changes in the Company’s share price; changes to government regulation of mining activities; environmental

risks; unanticipated reclamation or remediation expenses; title disputes or claims; limitations on insurance coverage,

fluctuations in the current price of and demand for commodities , particularly gold prices, as they are fluctuating

currently due to market volatility ; material adverse changes in general business, government and economic

conditions in the Company’s operating jurisdictions, particularly Argentina; the availability of financing if and when

needed on reasonable terms; risks related to material labour disputes, accidents, or failure of plant or equipment;

there may be other factors that cause results not to be as anticipated, estimated, or intended, including those set out

in the Co mpany’s annual information form and annual management discussion and analysis for the year ended

December 31, 202 4, which are available on the Company’s website and SEDAR+ at www.sedarplus.c a under the

Company’s profile.

The forward-looking information contained in this news release is based on information available to the Company as

at the date of this news release. Except as required under applicable securities legislation, the Company does not

undertake any obligation to publicly update and/or revise any of the forward-looking information included, whether

as a result of additional information, future events and/or otherwise. Forward -looking information is provided for

the purpose of providing information about management's current expectations and plans and allowing investors

and others to get a better understanding of t he Company's operating environment. Although the Company has

attempted to identify important factors that would cause actual results to differ materially from those contained in

forward-looking information, there may be other factors that cause results not to be as anticipated, estimated, or

intended. There can be no assurance that such statements will prove to be accurate, as actual results and future

events could differ materially from those anticipated in such statements. All the forward -looking informat ion

contained in this document is qualified by these cautionary statements. Readers are cautioned not to place undue

reliance on forward-looking information due to the inherent uncertainty thereof.

Cautionary Note Regarding Mineral Properties

Information concerning the mineral properties of the Company contained in this news release has been prepared in

accordance with the requirements of Canadian securities laws, which differ in material respects from the

requirements of securities laws of the United States applicable to U.S. companies subject to the reporting and

disclosure requirements of the United States Securities and Exchange Commission.