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EXN.V ·

Excellon Addresses NYSE Listing Requirements

Listings & Exchange

www.excellonresources.com

4866-3275-3182\1

EXCELLON ADDRESSES NYSE LISTING REQUIREMENTS

Toronto, Ontario – May 5, 2022 – Excellon Resources Inc. ( TSX:EXN, NYSE:EXN, FRA:E4X2) (“Excellon”

or the “Company”) announced today that the Company received a notice from NYSE American LLC (“NYSE

American”) stating that it is not in compliance with the continued listing standards as set forth in Section

1003(a)(i), (ii) and (iii) of the NYSE American LLC Company Guide (the “Company Guide”), which require a

company to have stockholders’ equity of $2 million or more if it has reported losses from continuing

operations and/or net losses in two of three of its most recent fiscal years; stockholders’ equity of $4

million or more if it has reported losses from continuing operatio ns and/or net losses in three of four of

its most recent fiscal years; and stockholders’ equity of $6 million or more if it has reported losses from

continuing operations and/or net losses in its five most recent fiscal years. All numbers are in U.S. dollars.

There is no immediate effect on trading on the NYSE American, but the Company must submit a plan of

compliance by May 30, 2022 addressing how it intends to regain compliance with the continued listing

standards by October 30, 2023. If NYSE American does not accept the plan or the Company does not make

progress consistent with the plan or regain compliance with the continued listing standards by October

30, 2023, the Company may be subject to delisting proceedings. The Company’s shares will also continue

to trade on the Toronto Stock Exchange.

The Company expects to submit a plan to the NYSE American to regain compliance with the continued

listing standards within the period provided.

Excellon also confirms that the auditor' s report received from its independent public accounting firm on

its audited financial statements for the fiscal year ended December 31, 20 21 filed with its Form 20 -F

annual report contained a going concern emphasis of matter. Disclosure of this going concern explanatory

language is required by Sections 401(h) and 610(b) of the Company Guide. This announcement does not

represent any change or amendment to any of the Company’s filings for the fiscal year ended December

31, 2021.

As previously disclosed, year-end results were adversely affected by a $22.2 million provision for litigation

involving the Company’s subsidiary, San Pedro Resources realized in the 3rd quarter of 2021.

For Further Information, Please Contact:

Excellon Resources Inc.

Brendan Cahill, President & Chief Executive Officer

Dan Hall, Chief Financial Officer

(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 submission of a compliance

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plan to the NYSE American, potential delisting from the NYSE American, mineral resources estimates, the future results of operations, performance

and achievements of the Company, including potential strategic transactions, the timing, content, cost and results of proposed work programs,

the discovery and delineation of mineral deposits/resources/reserves, geological interpretations, proposed production rates, po tential 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, postul ate 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 di ffer materially from those in forward looking statements as a result of various factors, including,

but not limited to, the possibility that the Company will not be able to submit a plan of compliance, the possibility that NYSE American will not

accept the compliance plan and that even if the plan is accepted that the Company won’t be able to comply with the plan, variations in the nature,

quality and quantity of any mineral deposits that may be located, significant downward variations in the market price o f any minerals produced,

the Company's inability to obtain any necessary permits, consents or authorizations required for its activities, to produce m inerals from its

properties successfully or profitably, to continue its projected growth, to raise the nec essary 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.