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Excellon Intercepts 115 Meters @ 0.74 G/T Au at Kilgore

Drill Results

www.excellonresources.com

EXCELLON INTERCEPTS 115 METERS @ 0.74 G/T AU AT KILGORE

Toronto, Ontario – December 6, 2022 – Excellon Resources Inc. (TSX:EXN; NYSE:EXN; FRA:E4X2)

(“Excellon” or the “Company”) is pleased to announce initial drill results from the recently completed

2022 exploration program at its Kilgore Project (or “Kilgore”) in Idaho, USA.

The 2022 Kilgore drill program was composed of six oriented diamond drill holes totalling 2,145 metres.

The first hole reported an intercept of 0.74 g/t Au over 115.60 meters (EX22KG001), including 1.07 g/t Au

over 26.93 metres and 26.5 g/t Au over 0.65 metres. The Kilgore exploration program completed in 2022

also included 3D induced polarization (IP) and magnetotellurics (MT) geophysical survey, and property-

wide prospecting.

Highlights

• The infill portion of the 2022 Kilgore drill program, together with detailed sampling, was

completed to improve the understanding of the structural controls on the high -grade

mineralization encountered at Kilgore.

• Initial infill drill results (EX22KG001):

o 0.74 g/t Au over 115.6 0 meters, including 1.07 g/t Au over 26.9 3 metres and 26.5 g/t Au

over 0.65 metres.

• Further assays are pending, and the Company will provide relevant updates as this information

becomes available.

• A geophysical survey consisting of 75 line-kilometres of 3D IP/MT has been completed, and data

inversion and interpretation are pending.

• Project-wide systematic prospecting has been completed with 211 rock samples collected, and

166 assays have been received to date.

Jorge Ortega, Vice President Exploration, commented: “We are encouraged by the results we have

received to date as they improve our understanding of the deposit and confirm the historical data. The

techniques used, including oriented core and detailed sampling, have provided an important insight into

the geological controls on high-grade gold mineralization that, along with the pending IP/MT survey data,

will continue to define further drill targets and exploration plans in order to realize the full potential for

the Kilgore Project.”

Kilgore Exploration Results To Date1

The 2022 drill program at Kilgore focused on confirming the historical and reverse circulation intercepts

within the Kilgore deposit, and exploring along the trend and at depth while obtaining structural readings

from the oriented core throughout the depos it. Diamond drill hole EX22KG001 was a confirmation

drillhole within the current mineral resource envelope identified by the previous drilling. A more detailed

sampling was conducted, identifying a high level of grade variability, and control of mineraliza tion by

narrow jarosite-filled structures and narrow, high-grade vein stockwork.

1 For further information on the above drill results, please refer to the section entitled “Technical Information and Quality

Control Notes” and the Cautionary Statements at the end of this news release.

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The following table highlight s selected intervals received to date from the first hole of the six holes

completed:

Drillhole

Interval(1) Interval Au

From (m) To (m) (m) (g/t)

EX22KG001 200.60 316.20 115.60 0.74

including 235.25 235.90 0.65 26.50

and including 289.27 316.20 26.93 1.07

(1) From-to intervals are measured from the drill collar. All intervals are reported as core length.

Figure 1: Cross-section demonstrating the assay results for EX22KG0012

In addition to diamond drilling, the Company completed a 75-line-kilometre IP and MT survey across high-

priority targets along the Kilgore deposit. The survey aims to better define structural features associated

with, and the extent of, mineralization and to further define drill targets.

Additionally, 71 Spatiotemporal Geochemical Hydrocarbon (SGH), 37 traditional ICP -MS, and 37 Mobile

Metal Ion (MMI) samples have been collected over the deposit to map geochemical responses , with all

analytical methods returning strong geochemical response s. Analysis of SGH results by Activation

Laboratories Ltd. specialists accurately identified the deposit area (including the parts of the deposit

located under post -mineralization cover) , suggesting that SGH may be a preferred method of soil

2 For more information on Kilgore, including its current mineral resource estimates, refer to the technical report filed by Otis

Gold Corp. dated August 26, 2019 (the “Kilgore Technical Report”) available under its profile on www.sedar.com and on the

Company’s website at www.excellonresources.com.

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sampling, considering that a significant portion of the property is under post-mineralization cover.

As part of the property-wide prospecting program at Kilgore, 211 rock samples have been collected, with

45 assay results still pending. The prospecting confirmed that a significant portion of the property is

covered with a barren post -mineralization cover. A combination of geophysics, SGH soil and stream

sediment sampling will be used for the target generation in areas under cover.

Figure 2: SGH-identified anomaly in relation to the Kilgore deposit

About the Kilgore Project

Kilgore is an advanced exploration-stage low sulfidation epithermal gold deposit located in Clark County,

Idaho. Excellon has a 100% undivided interest in Kilgore with claims totalling 6,762 hectares. Kilgore has

Indicated and Inferred mineral resource estimates as stated below.

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Mineral Resource Estimate – Kilgore Project(1)

Tonnes Au Au

(000’s) (g/t) (‘000s oz)

Indicated 44,556 0.58 825

Inferred 9,399 0.45 136

(1) For further information on the Kilgore project, including mineral resource estimates for the project, refer to the Kilgore Technical Report

and the Company’s Annual Information Form dated March 31, 2022 (the “ 2022 AIF”) available under its profile on www.sedar.com and

on the Company’s website at www.excellonresources.com.

The Company’s 2022 infill drilling program targeted higher-grade mineralization and structures at depth,

predominantly in the Aspen formation, seeking to define the potential for structure-controlled higher-

grade gold mineralization at the deposit.

About Excellon

Excellon’s vision is to realize opportunities through the acquisition of advanced development or producing

assets with further potential to gain from an experienced operational management team for the benefit

of our employees, communities and shareholders. The Company is advancing a precious metals growth

pipeline that includes: Kilgore, an advanced gold exploration project in Idaho with strong economics and

significant growth and discovery potential; and an option on Silver City, a high -grade epithermal si lver

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

also aims to continue capitalizing on current market conditions by evaluating and acquiring undervalued

projects in the Americas.

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

For Further Information, Please Contact:

Excellon Resources Inc.

Shawn Howarth, President & Chief Executive Officer

(416) 312-6665

[email protected]

www.excellonresources.com

Technical Information and Quality Control Notes

Drillhole Easting Northing Elevation Azimuth Dip Length

ID NAD83 Zone 12 NAD83 Zone 12 (m) (°) (°) (m)

EX22KG001 420442 4920422 2327 040 -75 411.96

The drill results contained in this news release have been prepared in accordance with National Instrument 43 -101

Standards of Disclosure for Mineral Projects ("NI 43-101") of the Canadian Securities Administrators (“CSA”).

Kilgore drill core samples are prepared and assayed by ALS in Twin Falls, Idaho, Reno, Nevada and Vancouver, BC.

The lab is accredited to ISO/IEC 17025:2017 and ISO 9001:2001 5. Assay turnaround times have been impacted

recently by a worldwide increase in demand for laboratory services. The Company has a comprehensive quality

assurance and quality control (“QAQC”) program, supervised by a Qualified Person, as defined by NI 43 -101.

The sampling of, and assay data from, the core sampling and reporting are monitored through a QAQC program

designed according to best industry practice. Samples from HQ - and BQ -sized drill core are selected by Excellon

geologists and cut into halves at the project site. Half of the core is retained at the site for reference purposes.

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Sample intervals vary from 0.2 to 3.05 metres in length, with samples being selected to honour geological contacts.

Samples are labelled and packed into sealed plastic bags which are grouped into larger fibre bags for shipping. A

formal chain-of-custody procedure is in place for the security of samples from project to laboratory.

Samples are delivered by Excellon staff to the ALS laboratory in Twin Falls, Idaho. Samples then undergo crushing to

70% passing two millimetres, rotary split of 250 grams, followed by pulverizing to 85% passing 75 microns before a

50-gram sub-sample is selected for analysis. Fire assay with a gravimetric finish overlimit for gold is performed at

Reno, Nevada ALS facility, and ICP -MS multi -element analysis for silver, base metals, and multi -element data is

performed at Vancouver,BC ALS laboratory.

Qualified Person

Mr. Jorge Ortega, P. Geo., Vice President Exploration of the Company and a Qualified Person, as defined in NI 43-101

of the CSA, reviewed, verified and approved the scientific and technical information contained in this news release.

CAUTIONARY STATEMENTS ON FORWARD-LOOKING STATEMENTS AND OTHER MATTERS

Forward-Looking Statements

All statements, other than statements of historical fact, contained or incorporated by reference in this news release

constitute “forward -looking statements” and “forwardlooking information” (collectively, “forward -looking

statements”) within the meaning of applicable Canadian and United States securities legislation. Generally, these

forward-looking statements can be identified by the use of forward -looking terminology such as: “advancing”,

“aims”, “believe”, “considering”, “cont inue”, “could”, “demonstrate d”, “development”, “discovery”, “encouraged”,

“expectation”, “explor ation”, “estimate”, “focus”, “further”, “future”, “grow th”, “improve”, “initial”,

“interpretation”, “may”, “model ing”, “opportunities”, “option”, “pending”, “pipeline”, “plan s”, “potential”,

“priority”, “program”, “project”, “prospecti ng”, “provide”, “risk”, “sampling”, “seeking”, “survey”, “targets”,

“testing”, “trend”, “vision”, “will” and “would”, or variations of such words, and similar such words, expressions or

statements that certain actions, events or results can, could, may, should, will (or not) be achieved, occur, provide,

result or support in the future or which, by their nature, refer to future events. In some cases, forward -looking

information may be stated in the present tense, such as in respect of current matters that may be continuing, or that

may have a future impact or effect. Forward -looking statements include, without limitation, statements regarding

mineralization, mineraliz ed structures , mineral resource envelope and deposit (including potential, grade, further

definition, continuation and location); exploration projects, exploration and drill programs and activities (including

scale, prospects and prospectivity, successes, targets and current assessments of drilling to date); acquisitions;

realization of opportunities (and gains, benefits and other results thereof); discovery and growth potential;

economics; and capitalizing on current market conditions. Although the Company believes that such statements are

reasonable, it can give no assurance that such expectations will prove to be correct, and any forward -looking

statements by the Company are not guarantees of future actions, results or performance. Forward -looking

statements are based on assumptions, estimates, expectations and opinions, which are considered reasonable and

represent best judgment based on available facts, as of the date such statements are made. If such assumptions,

estimates, expectations and opinions prove to be incorrect, actual and future results may be materially different than

expressed or implied in the forward -looking statements. The assumptions, estimates, expectations and opinions

referenced, contained or incorporated by reference in this news release which may prove to be incorrect include those

set forth or referenced in this news release, as well as those stated in the 2022 AIF, the Kilgore Technical Report, the

Company’s Management’s Discussion and Analysis for the year -ended December 31, 2021 and the quarters already

ended in 2022 (together with the accompanying financial statements, collectively, the “FYE2021 and 2022 MD&A”)

and the Company’s other applicable public disclosure, all available on the Company’s website at

www.excellonresources.com and under its profile at www.sedar.com. Forward -looking statements are inherently

subject to known and unknown risks, uncertainties, contingencies and other factors which may cause the actual

results or performance of the Company to be materially different from any future results or performance expressed

or implied by the forward -looking statements. Such risks, uncertainties, contingencies and other factors include,

among others, the “Risk Factors” in the 2022 AIF, and the risks, uncertainties, contingencies and other factors

identified in the Kilgore Technical Report and the FYE2021 and 2022 MD&A and the Company’s other applicable

public disclosure. The foregoing list of risks, uncertainties, contingencies and other factors is not exhaustive; readers

should consult the more complete discussion of the Company’s business, financial condition and prospects that is

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provided in the 2022 AIF and the other aforementioned documents. The forward -looking statements referenced or

contained i n this news release are expressly qualified by these Cautionary Statements as well as the Cautionary

Statements in the 2022 AIF, the Kilgore Technical Report and the FYE2021 and 2022 MD&A and the Company’s other

applicable public disclosure. Forward -looking statements contained herein are made as of the date of this news

release (or as otherwise expressly specified) and the Company disclaims any obligation to update any forward-looking

statements, whether as a result of new information, future events or res ults or otherwise, except as required by

applicable laws.

Mineral Resources

Until mineral deposits are actually mined and processed, mineral resources must be considered as estimates only.

Mineral resource estimates that are not classified as mineral reserves do not have demonstrated economic viability.

The estimation of mineral r esources is inherently uncertain, involves subjective judgement about many relevant

factors and may be materially affected by, among other things, environmental, permitting, legal, title, taxation,

socio-political, marketing, or other relevant risks, uncer tainties, contingencies and other factors described in the

foregoing Cautionary Statements. The quantity and grade of reported “inferred” mineral resource estimates are

uncertain in nature and there has been insufficient exploration to define “inferred” mineral resource estimates as an

“indicated” or “measured” mineral resource and it is uncertain if further exploration will result in upgrading “inferred”

mineral resource estimates to an “indicated” or “measured” mineral resource category. The accuracy of any mineral

resource estimates is a function of the quantity and quality of available data, and of the assumptions made and

judgments used in engineering and geological interpretation, which may prove to be unreliable and depend, to a

certain extent, upon t he analysis of drilling results and statistical inferences that may ultimately prove to be

inaccurate. The quantity and grade of “inferred” mineral resource estimates are uncertain in nature and there has

been insufficient exploration to define “inferred” mineral resource estimates as an “indicated” or “measured” mineral

resource and it is uncertain if further exploration will result in upgrading “inferred” mineral resource estimates to an

“indicated” or “measured” mineral resource category. Mineral resource estimates may have to be re-estimated based

on, among other things: (i) fluctuations in mineral prices; (ii) results of drilling and development; (iii) results of

geological and structural modeling including stope design; (iv) metallurgical testing and o ther testing; (v) proposed

mining operations including dilution; and (vi) the possible failure to receive and/or maintain required permits, licenses

and other approvals. It cannot be assumed that all or any part of a “inferred”, “indicated” or “measured” m ineral

resource estimate will ever be upgraded to a higher category including a mineral reserve.

The mineral resource estimates declared by the Company were estimated, categorized and reported using standards

and definitions using Canadian Institute of Mi ning, Metallurgy and Petroleum Definition Standards for Mineral

Resources and Mineral Reserves (the “ CIM Standards”) in accordance with NI 43-101 of the CSA, which governs the

public disclosure of scientific and technical information concerning mineral pro jects.

U.S. Readers

The terms “mineral resource”, “measured mineral resource”, “indicated mineral resource” and “inferred mineral

resource” as disclosed by the Company are Canadian mining terms defined in the CIM Standards (collectively, the

“CIM Definitions ”) in accordance with NI 43 -101. NI 43 -101 establishes standards for all public disclosure that a

Canadian issuer makes of scientific and technical information concerning mineral projects. These Canadian standards

differ from the requirements of the United States Securities and Exchange Commission (the “ SEC”) applicable to

United States domestic and certain foreign reporting companies under Subpart 1300 of Regulation S-K (“S-K 1300”).

Accordingly, information describing mineral resource estimates for the Company’s projects, including Kilgore, may

not be comparable to similar information publicly reported in accordance with the applicable requirements of the

SEC, and so there can be no assurance that any mineral resource estimate for the Company’s projects would be the

same had the estimates been prepared per the SEC’s reporting and disclosure requirements under applicable United

States federal securities laws, and the rules and regulations thereunder, including but not limited to S-K 1300. Further,

there is no assurance that any mineral resource or mineral reserve estimate that the Company may report under NI

43-101 would be the same had the Company prepared su ch estimates under S-K 1300.