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Excelsior Mining Announces Upsize to its Previously Announced Bought Deal Financing to C$28 Million

Financings

NEWS RELEASE

Excelsior Mining Announces Upsize to its Previously Announced

Bought Deal Financing to C$28 Million

February 11, 2021

Excelsior Mining Corp. (TSX: MIN) (FSE: 3XS) (OTCQX: EXMGF) ("Excelsior" or the “Company”)

is pleased to announce that due to strong investor demand it has amended the terms of its previously

announced “bought deal” public offering of units of the Company (the “Units”) to increase the size of the

offering. In connection with the upsizing of the offering, the Company has entered into an amending

agreement with Scotiabank and PI Financial Corp. as joint bookrunners and underwriters (the

“Underwriters”). Pursuant to the revised terms of the offering, the Underwriters have agreed to buy on

a bought deal basis 29,000,000 units (the “Units”) of the Company, at a price of C$0. 95 per Unit for

gross proceeds of approximately C$28 million (the “Offering”). Each Unit consists of one common share

(each a “Common Share”) and one warrant (each a “Warrant”). Each Warrant is exercisable to acquire

a Common Share (each a “Warrant Share”) at an exercise price of C$ 1.25 for a period of 18 months

from the closing of the Offering.

The Company has also granted the Underwriters an option, exercisable at the offering price for a period

of 30 days following the closing of the Offering, to purchase up to an additional 4,350,000 Units to cover

over-allotments, if any, and for market stabilization purposes. The Offering is expected to close on

February 22, 2021 and is subject to the Company receiving all necessary regulatory approvals, including

the approval of the Toronto Stock Exchange.

The net proceeds from the Offering will be used for working capital requirements and for the

development, sustaining capital and maintenance of the Company’s mineral properties.

A prospectus supplement (the “ Prospectus Supplement ”) to the Company’s short form base shelf

prospectus dated December 22, 2020 (the “ Base Shelf Prospectus ”) will be filed with the securities

commissions or securities regulatory authorities in each of the provinces of Canada, excluding Quebec.

The Prospect us Supplement and the Base Shelf Prospectus contain important detailed information

about the Company and the proposed Offering. Prospective investors should read the Prospectus

Supplement, the Base Shelf Prospectus and the documents incorporated therein fo r more information

about the Company and this Offering before making an investment decision.

The Units, Common Shares and Warrant Shares have not been, nor will they be, registered under the

United States Securities Act of 1933, as amended and may not be offered or sold in the United States

or to, or for the account or benefit of, U.S. persons absent registration or an applicable exemption from

the registration requirements. This news release does not constitute an offer of securities for sale in the

United States.

About Excelsior Mining

Excelsior “The Copper Solution Company ” is a mineral exploration and production company that owns

the Gunnison Copper Project in Cochise County, Arizona . The project is a low cost, environmentally

friendly in -situ recovery copper extraction project that is permitted to 125 million pounds per year of

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copper cathode production. The Feasibility Study projected an after-tax NPV of US$ 807 million and an

IRR of 40% using a US$ 2.75 per pound copper price and a 7.5% discount rate.

Excelsior’s technical work on the Gunnison Copper Project is supervised by Stephen Twyerould, Fellow

of AUSIMM, President & CEO of Excelsior and a Qualified Person as defined by National Instrument 43-

101. Mr. Twyerould has reviewed and approved the technical information contained in this news release.

Additional information about the Gunnison Copper Project can be found in the technical report filed on

SEDAR at www.sedar.com entitled: “Gunnison Copper Project, NI 43 -101 Technical Report, Feasibility

Study” dated effective December 17, 2016.

For more information on Excelsior, please visit our website at www.excelsiormining.com.

For further information regarding this press release, please contact:

Excelsior Mining Corp.

Concord Place, Suite 300, 2999 North 44th Street, Phoenix, AZ, 85018.

JJ Jennex, Vice President, Corporate Affairs

T: 604 723 1433

E: [email protected]

www.excelsiormining.com

Cautionary Note Regarding Forward-Looking Information

This news release contains "forward-looking information" concerning anticipated developments and events that may

occur in the future. Forward looking information contained in this news release includes, but is not limited to,

statements with respect to: (i) the results of the Feasibility Study, including operating and capital cost estimates and

the economic benefits from the Gunn ison Copper Project; (ii) the details of future production capacity ; (iii) the

completion of the Offering and its expected closing date; and (iv) the use of proceeds of the Offering.

In certain cases, forward -looking information can be identified by the use of words such as "plans", "expects" or

"does not expect", "budget", "scheduled", "estimates", "forecasts", "intends", "anticipates" or "does not anticipate",

or "believes", or variations of such words and phrases or state that certain actions, events or results "may", "could",

"would", "might", "occur" or "be achieved" suggesting future outcomes, or other expectations, beliefs, plans,

objectives, assumptions, intentions or statements about future events or performance. Forward-looking information

contained in this news release is based on certain factors and assumptions regarding, among other things

information with respect to the Base Shelf Prospectus , the estimation of mineral resources and mineral reserves,

the realization of resource and reserve estimates, expectations and anticipated impact of the COVID-19 outbreak,

copper and other metal prices, the timing and amount of future development expenditures, the estimation of initial

and sustaining capital requirements, the estimation of labour and operat ing costs (including the price of acid), the

availability of labour, material and acid supply, receipt of and compliance with necessary regulatory approvals, the

estimation of insurance coverage, and assumptions with respect to currency fluctuations, environmental risks, title

disputes or claims, and other similar matters. While the Company considers these assumptions to be reasonable

based on information currently available to it, they may prove to be incorrect.

Forward looking information involves known a nd unknown risks, uncertainties and other factors which may cause

the actual results, performance or achievements of the Company to be materially different from any future results,

performance or achievements expressed or implied by the forward -looking information. Such factors include the

ability of the Company to successfully complete the Offering, risks inherent in the construction of mineral deposits,

including risks relating to changes in project parameters as plans continue to be redefined including the possibility

that mining operations may not be sustained at the Gunnison Copper Project, risks relating to variations in mineral

resources and reserves, grade or recovery rates, risks relating to the ability to access infrastructure, risks relating

to changes in copper and other commodity prices and the worldwide demand for and supply of copper and related

products, risks related to increased competition in the market for copper and related products, risks related to current

global financial conditions, risks related to current global financial conditions and th e impact of COVID -19 on the

Company’s business, uncertainties inherent in the estimation of mineral resources, access and supply risks, risks

related to the ability to access acid supply on commercially reasonable terms, reliance on key personnel, operational

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risks inherent in the conduct of mining activities, including the risk of accidents, labour disputes, increases in capital

and operating costs and the risk of delays or increased costs that might be encountered during the construction

process, regulatory risks, financing, capitalization and liquidity risks, risks related to disputes concerning property

titles and interests, environmental risks and the additional risks identified in the “Risk Factors” section of the

Company’s reports and filings with applicable Canadian securities regulators.

Although the Company has attempted to identify important factors that could cause actual actions, events or results

to differ materially from those described in forward -looking information, there may be other factor s that cause

actions, events or results not to be as anticipated, estimated or intended. Accordingly, readers should not place

undue reliance on forward-looking information. The forward-looking information is made as of the date of this news

release. Excep t as required by applicable securities laws, the Company does not undertake any obligation to

publicly update or revise any forward-looking information.