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EXN.V ·

Excellon Delivers Strong August Production and Resumes Surface Exploration at Platosa

Production Results Exploration Programs

www.excellonresources.com

EXCELLON DELIVERS STRONG AUGUST PRODUCTION

AND RESUMES SURFACE EXPLORATION AT PLATOSA

Toronto, Ontario – September 18, 2020 – Excellon Resources Inc. (TSX:EXN, EXN.WT; OTC:EXLLD;

FRA:E4X2) (“Excellon” or the “Company”) is pleased to provide August production results following its

successful restart of operations in mid-June 2020.

“We continued to realize strong production in August, delivering record monthly tonnage from both the

mine and mill ,” stated Brendan Cahill, President & CEO . “Changes to mine shift scheduling and mining

method continued to deliver improved productivity and lower costs and we expect to transition to a lower

cost energy suppl ier in early Q4. Electricity remains the largest cost centre at Platosa and the best

opportunity to reduce cost further.”

August 2020 Production Results

Production in Dry Metric Tonnes (DMT) August 2020

Tonnes Mined from Platosa 7,635

Tonnes Processed 8,477

Ore Grades

Silver (g/t) 451

Lead (%) 4.95

Zinc (%) 6.76

Recoveries

Silver (%) 86.8

Lead (%) 78.8

Zinc (%) 78.9

Metal Production*

Silver (oz) 106,662

Lead (lb) 729,081

Zinc (lb) 997,157

AgEq (oz)* 169,473

Average August 2020 Commodity Prices

Silver ($) 26.89

Lead ($) 0.88

Zinc ($) 1.09

* Subject to final settlement prices and assays with concentrate

purchaser/AgEq ounces calculated using average August 2020 metal prices

The operation realized ordinary-course variations in metal grade during August. Recoveries were lower

than planned as additional process optimizations were implemented, but recoveries have returned to plan

in September. Realized cost reductions at Platosa include reductions to the workforce and renegotiation

of treatment charges on concentrate. Pending cost reductions include the transition to a new energy

supplier, upgrades to underground communications and various proce ssing optimizations to better

control reagent and consumables usage. The Company expects Platosa to deliver positive cashflow at

current metal prices, particularly with these realized and pending cost reductions.

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Surface Drilling Resumes at Platosa Mine and Nearby Targets

The Company has recommenced underground and surface drilling at the Platosa Mine and broader Platosa

Property, respectively. Underground exploration is focused on expanding and further defining known

mineralization. Surface exploration is focused on near mine targets around the Platosa deposit and the

Jaboncillo and PDN targets north of the mine. Jaboncillo, 11 kilometres northwest of the Platosa Mine, is

a Platosa-style target with a 4 x 4 kilometre alteration footprint, multiple times the size of the Platosa

footprint, where the Company intersected near -surface gossans in 2019 drilling . PDN, two kilometres

north of the Platosa Mine, is a skarn -style geophysical target that may be associated with the skarn

discovery made in 2012 at Rincón del Caído. A complete update on the exploration outlook at Platosa is

expected in the coming weeks.

Litigation Update

A subsidiary of the Company’s appeal against a judgment revoking its 2007 purchase of approximately 295

hectares of surface rights north of the Platosa Mine has been denied by an appeals court in Mexico. The

judgment nullifies the purchase and orders that the land be returned to the plaintiffs and the plaintiffs to

repay the original purchase price to the Company’s subsidiary.

The Company does not consider the land material to its mining operation or exploration activities. The

decision does not impact Excellon’s mineral rights and the Company does not expect it to have any impact

on its operations.

The plaintiffs also alleged at trial, for the first time, that the Platosa Mine site was on this land. This

assertion was not decided in the litigation, was not supported by admissible evidence, contradicts the

cadastral registry, conflicts with the rights of other third -party holders and ignores the fact that the

Company began its use and occupation of the mine site in 2004 – before the sale in question.

Under Mexican law, Excellon’s access to the mine cannot be impeded. Nevertheless, the Company is

considering a variety of legal avenues to redress the ruling, including further appeal.

COVID-19 Update

Excellon continues to monitor and implement business continuity measures to mitigate and minimize to

the extent possible any potential impacts from COVID-19 that might impact operations, procurement or

commercial activities. The pandemic has not had any material impact on production or shipment of

concentrate from any of the Company’s operations.

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 shareholders. 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 gold development project in Idaho with strong economics and

significant 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 conditions by acquiring undervalued projects.

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

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For Further Information, Please Contact:

Excellon Resources Inc.

Brendan Cahill, President & Chief Executive Officer or

Anna Ladd-Kruger, Chief Financial Officer & VP Corporate Development

(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 meaning of Section 27A of the

Securities Act and Section 27E of the Exchange Act. Such statements include, without limitation, statements regarding the fut ure results of

operations, performance and achievements of the Company, including 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 processes 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 f uture 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, quality 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 obtain any neces sary permits, consents or

authorizations required for its activities, to produce 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 strateg ies. All of the Company's public disclosure filings may be accessed via

www.sedar.com and readers are urged to review these materials, including the technical reports filed with respect to the Comp any's mineral

properties, and particularly the September 7, 2018 NI 43-101 technical report prepared by SRK Consulting (Canada) Inc. with respect to the Platosa

Property. 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.