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EXN.V ·

Excellon Files Silver City Technical Report

Technical Reports (NI 43-101)

www.excellonresources.com

EXCELLON FILES SILVER CITY TECHNICAL REPORT

Toronto, Ontario – December 23, 2021 – Excellon Resources Inc. ( TSX:EXN; NYSE:EXN; FRA:E4X2)

(“Excellon” or the “Company”) is pleased to announce the filing of an independent technical report for

the Silver City Project in Saxony Germany, which has been prepared in accordance with National

Instrument 43-101 (the “Technical Report”). A copy of the technical report is available on both S EDAR at

www.sedar.com and the Company’s website at www.excellonresources.com.

Recommendations from the Technical Report

The author of the Technical Report , Mr. Michael J. Robertson, Pr.Sci.Nat (400005/92); MAusIMM

(316078), of the independent consulting firm The MS eA Group (Pty) Ltd. , has concluded that the

Company’s proposed exploration program, outlined below, is appropriate for the Silver City Project. The

main components are:

• Step-out diamond drilling at Bräunsdorf to assess the extent and nature of mineralization below

workings of the historical Neue Hoffnung Gottes Mine.

• Step-out diamond drilling at Grauer Wolf and Reichenbach to confirm the continuity of the known

mineralization along the strike and towards depth.

• Step-out diamond drilling at Großvoigtsberg to confirm continuity of the known mineralization

along the strike and towards depth, particularly in the areas where rich ore shoots were

documented during historical mining.

• Drill testing of magnetic lineaments and inferred geological contacts near Grauer Wolf and

Reichenbach.

• Drill testing of magnetic lineaments and inferred geological contacts at Siegfried, which are

interpreted to be an extension of the Bräunsdorf mineralization towards southwest.

• Drill testing of magnetic lineaments and inferred geological contacts at Obergruna where historical

mapping indicates the presence of mineralized veins.

• Fence drilling at Langhennersdorf to test soil anomalies.

• An airborne magnetic survey in selected areas to complement the dataset that was obtained during

the earlier surveys.

• Rock magnetic susceptibility study on available drill core for all target areas and all encountered

lithologies to support the interpretation of available and future magnetic survey data.

• Soil sampling calibration study with lines crossing known mineralization to test geochemical

response.

• Archive work, digitizing and georeferencing historical mine plans etc.

• Regional exploration work on the rest of the Project.

Qualified Person

Jorge Ortega, P.Geo., Vice President Exploration, has acted as the Qualified Person, as defined in NI 43-

101, with respect to the disclosure of the scientific and technical information contained in this press

release.

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About Excellon

Excellon’s vision is to create wealth by realizing strategic opportunities through discipline and innovation

for the benefit of our employees, communities and shareholde rs. The Company is advancing a precious

metals growth pipeline that includes: Platosa, Mexico’s highest -grade silver mine since production

commenced in 2005; Kilgore, a high -quality advanced exploration gold project in Idaho with strong

economics and signi ficant growth and discovery potential; and an option on Silver City, a high -grade

epithermal silver district in Saxony, Germany with 750 years of mining history and no modern exploration.

The Company also aims to continue capitalizing on current market con ditions by acquiring undervalued

projects.

Additional details on Excellon’s properties are available at www.excellonresources.com.

For Further Information, Please Contact:

Excellon Resources Inc.

Brendan Cahill, President & Chief Executive Officer

Jorge Ortega, Vice President Exploration

(416) 364-1130

[email protected]

www.excellonresources.com

Forward-Looking Statements

The Toronto Stock Exchange has not reviewed and does not accept responsibility for the adequacy or accuracy of the content of this Press Release,

which has been prepared by management. This press release contains forward -looking statements within the meani ng of Section 27A of the

Securities Act and Section 27E of the Exchange Act. Such statements include, without limitation, statements regarding mineral resources estimates,

the future results of operations, performance and achievements of the Company, inclu ding potential property acquisitions, the timing, content,

cost and results of proposed work programs, the discovery and delineation of mineral deposits/resources/reserves, geological interpretations,

proposed production rates, potential mineral recovery p rocesses and rates, business and financing plans, business trends and future operating

revenues. Although the Company believes that such statements are reasonable, it can give no assurance that such expectations will prove to be

correct. Forward-looking statements are typically identified by words such as: believe, expect, anticipate, intend, estimate, postulate and similar

expressions, or are those, which, by their nature, refer to future events. The Company cautions investors that any forward -looking statements by

the Company are not guarantees of future results or performance, and that actual results may differ materially from those in forward looking

statements as a result of various factors, including, but not limited to, variations in the nature, quali ty and quantity of any mineral deposits that

may be located, significant downward variations in the market price of any minerals produced, the Company's inability to obta in any necessary

permits, consents or authorizations required for its activities, to p roduce minerals from its properties successfully or profitably, to continue its

projected growth, to raise the necessary capital or to be fully able to implement its business strategies. All of the Company 's public disclosure

filings may be accessed via www.sedar.com and readers are urged to review these materials. This press release is not, and is not to be construed

in any way as, an offer to buy or sell securities in the United States.

Cautionary Note to U.S. Investors: The terms “mineral resource,” “measured mineral resource,” “indicated mineral resource” and “inferred

mineral resource,” as used on Excellon’s website and in its press releases are Canadian mining terms that are defined in accordance with National

Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”). These Canadian terms are not defined terms under United States

Securities and Exchange Commission (“SEC”) Industry Guide 7 and are normally not permitted to be used in reports and regi stration statements

filed with the SEC by U.S. registered companies. The SEC permits U.S. companies, in their filings with the SEC, to disclose only those mineral

deposits that a company can economically and legally extract or produce. Accordingly, note that information describing the Company’s “mineral

resources” is not directly comparable to information made public by U.S. companies subject to reporting requirements under U. S. securities laws.

U.S. investors are urged to consider closely the disclosure i n the Company’s Form 40 -F which may be secured from the Company, or online

at http://www.sec.gov/edgar.shtml.