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Excellon Expands Footprint of Oakley Project

Property Options & Staking

www.excellonresources.com

EXCELLON EXPANDS FOOTPRINT OF OAKLEY PROJECT

Toronto, Ontario – August 6, 2020 – Excellon Resources Inc. (TSX:EXN, EXN.WT, OTC:EXLLF and FRA:E4X1)

("Excellon" or the “Company") is pleased to provide an update on the Oakley Project, Idaho (“Oakley”), on

which the Company has granted Centerra (U.S.) Inc . (“Centerra”) an option to earn up a 70% by, among

other things, spending up to US$7 million in exploration expenditures on the project prior to May 2026.

Highlights

• Increased land holdings by approximately 2,500 acres (1,012 hectares) to approximately 7,000 acres

(2,833 hectares) through staking of an additional 125 Federal Lode Mining claims on land managed

by the BLM at the Cold Creek, Blue Hill Creek and Matrix Creek Prospects

• Continued application process for 960 acres (388 hectares) of State of Idaho -managed land as

“mineral leases,” adding to the current 320 acres (129.5 hectares) of mineral leases for a total of

1,280 acres (518 hectares)

• Completed soil sampling across the newly staked ground with 1,347 samples sent for gold and

multi-element analysis

• Completed 1,330 line-kilometer, airborne magnetic survey across the entire Oakley Project area

including expanded footprint

• Completed detailed geologic mapping program over the Cold Creek Prospect

Claim Staking

Continuing on from exploration work completed in 2018, and in collaboration with Centerra, Excellon staked

an additional 125 federal lode mining claims on the Cold Creek (78 claims), Blue Hill Creek (23 claims) and

Matrix Creek (24 claims) Prospects (Figur e 1). The additional claims were staked as follow -up to the gold

and silver anomalies identified in soils and rocks in 2018 and the mineral trends identified to the north-west

and south-east. The new staking adds 2 ,500 acres (1,012 hectares) to the existing 225 federal lode mining

claims, or 4,500 acres (1,821 hectares), on public land managed by the Bureau of Land Management (BLM)

for a total of 350 claims or 7,000 acres (2,833 hectares).

Mineral Leases

Excellon continues with the application process f or State of Idaho mineral leases covering 960 acres (389

hectares). The proposed leases lie to the north of the Blue Hill Creek claims up to the Emery Claims, and to

the west of the Matrix Creek claims; these areas are considered prospective and follow -up on the 2018

exploration program results that indicated north and northwest anomalous trends from soil and rock

samples. (Figure 1)

Geochemistry

Excellon conducted soil geochemistry programs over the newly staked claims to further investigate the gold

and silver anomalous trends identified as a result of the 2018 exploration program; results indicated the

potential for mineralization to extend to the northwest and southeast of the existing land package into

previously untested areas. A total of 1,347 soil samples were submitted, 522 from the Cold Creek prospect

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and 825 from the contiguous Blue Hill and Matrix Creek prospects, to Bureau Veritas in Sparks, Nevada for

gold and multielement analysis. Results are expected in early August, 2020.

Geophysics

Excellon contracted Edcon-PRJ of Denver, Colorado to conduct a low level, airborne magnetic survey using

a Reeder’s 206-L3 helicopter with a towed sensor array incorporating a Geometrics G823A magnetometer

and dual frequency Hemisphere R-220 GPS antenna. The survey flew for a total of 1,330 line -kilometers in

early July 2020. The results from this program will be integrated with all currently available exploration data

to generate targets for follow-up with ground-based geophysics in early- to mid-fall 2020. (Figure 2)

Geology

Excellon has completed a detailed geologic mapping program over the existing and extended claim package

at Cold Creek. The findings from mapping will be incorporated into the developing geologic model to guide

ground geophysics and drill targets for the remainder of 2020. The mapping program has confirmed and

extended the existence of surface outcrops of tertiary volcaniclastic and clastic sediments hosting low

sulfidation hot spring-style epithermal mineralization containing anomalous gold (up to 1.9 g/t Au) and silver

(up to 8.4 g/t Ag). The program also confirmed the existence of hydrothermally altered Palaeozoic clastic

marine sediments including black jasperoidal rocks interpreted as altered limestones along with intensely

stockwork veined, hydrothermally brecciated and faulted quartzite. The presence of altered Palaeozoic

sediments underlying silicified and veined tertiary v olcaniclastic rocks confirms the potential of the Cold

Creek Prospect to host economic mineralization at depth.

Lidar & Orthophotography

Excellon has contracted Geoterra of Eugene, Oregon to conduct a Lidar and Orthophoto survey over the

Oakley Project in early August 2020. Both the Lidar and Orthophoto data will provide high quality images

that will be used to enhance the structural geology in the geologic model. The goal of the program is to

interpret large - to medium -scale faulting by determining tre nds and orientations providing for a more

comprehensive structural framework in the geologic model. This data along with all other exploration data

will be incorporated into the current leapfrog model resulting in targets for drill testing in late 2020.

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Figure 1:

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Figure 2:

About the Oakley Project

The Oakley Project is a gold -silver exploration prospect located 21 km south of Oakley, Idaho. The

exploration targets include hot -spring style low sulfidation epithermal mineralization hosted by tertiary

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rocks as well as the potential for low-sulfidation Carlin-style epithermal mineralization hosted within Basin-

and-Range Palaeozoic sediments. The property lies along the western flank of the Albion Mountains, part

of the Albion -Raft River -Grouse Creek Metamorphic Core Complex. Oakley contains multiple targets ,

including Cold Creek, Blue Hill Creek and Matrix Creek.

Qualified Person

Mr. Alan Roberts, Msc, CPG, Vice President Exploration (US), has acted as the Qualified Person, as defined

in NI 43-101, with respect to the disclosure of the scientific and technical information relating to exploration

results contained in this press release.

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 Id aho 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.

For Further Information, Please Contact:

Brendan Cahill, President & CEO or

Ben Pullinger, SVP Geology

(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 future 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 producti on 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 pr ove to be correct. Forward -looking statements are

typically identified by words such as: believe, expect, anticipate, intend, estimate, postulate and similar expressions, or a re those, which, by their

nature, refer to future events. The Company cautions in vestors 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 necessary 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 strategies. All of the Company's public disc losure 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 Company'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.