Saturday, September 26, 2026
MiningNewsTerminal
Saturday, September 26, 2026 Admin

FVI.TO ·

Fortuna completes acquisition of Chesser Resources, strengthening its presence in West Africa

Mergers & Acquisitions

Fortuna completes acquisition of Chesser Resources, strengthening its

presence in West Africa

Vancouver, September 20, 2023: Fortuna Silver Mines Inc. (NYSE: FSM) (TSX: FVI) is pleased to confirm

the completion of the previously announced acquisition of Chesser Resources Limited (ASX: CHZ)

("Chesser") (refer to Fortuna news release dated May 8, 2023). Fortuna has acquired 100 percent of the

fully paid ordinary shares of Chesser (the " Chesser Shares") in consideration for 0.0248 of one common

share of Fortuna (each whole share, a "Fortuna Share") for each Chesser Share held. On closing, Fortuna

issued 15,545,368 Fortuna Shares in exchange for the Chesser Shares, representing approximately

5.1 percent of the resulting issued and outstanding Fortuna Shares on an undiluted basis. The transaction

was implemented by way of a statutory scheme of arrangement pursuant to Part 5.1 of the Australian

Corporations Act 2001 (Cth). Following completi on of the transaction, Chesser is a wholly -owned

subsidiary of Fortuna. The Chesser Shares are expected to be delisted from the ASX within one to two

business days.

The acquisition of Chesser expands Fortuna’s presence in West Africa to include the preliminary economic

assessment stage Diamba Sud Gold Project in Senegal, a new and emerging gold discovery in the region.

Chesser holds tenements in Senegal covering approximately 872 km2 of prospective ground located close

to, and sharing similar geological features with nearby tier one gold mines. Diamba Sud is comprised of

four open pittable high grade gold deposits, along with numerous anomalies yet to be tested. Fortuna will

prioritize exploration to expand the mineral resource at Diamba Sud before advancing the project to the

development stage.

Jorge A. Ganoza, President and CEO of Fortuna, commented, “With the acquisition of Chesser, Fortuna

continues to strengthen its presence in West Africa. Senegal is a mining friendly and highly prospective

jurisdiction, and we are excited about the growth potential that Chesser’s Diamba Sud Gold Project

provides.” Mr. Ganoza concluded, “We look forward to integrating Diamba Sud into our global portfolio,

focusing on exploration to unlock value, and partnering with the local communities and stakeholders as

we continue to advance the project.”

About Fortuna Silver Mines Inc.

Fortuna Silver Mines Inc. is a Canadian precious metals mining company with five operating mines in

Argentina, Burkina Faso, Côte d'Ivoire, Mexico, and Peru . Sustainability is integral to all our operations

and relationships. We produce gold and silver and generate shared value over the long -term for our

stakeholders through efficient production, environmental protection, and social responsibility. For more

information, please visit our website.

ON BEHALF OF THE BOARD

Jorge A. Ganoza

President, CEO, and Director

Fortuna Silver Mines Inc.

NEWS RELEASE

- 2 -

Investor Relations:

Carlos Baca | [email protected] | www.fortunasilver.com | X | LinkedIn | YouTube

Forward-looking Statements

This news release contains forward -looking statements which constitute “forward -looking information” within the meaning of

applicable Canadian securities legislation and “forward -looking statements” within the meaning of the “safe harbor” provisions

of the Private Securities Litigation Reform Act of 1995 (collectively, “Forward-looking Statements”). All statements included herein,

other than statements of historical fact, are Forward-looking Statements and are subject to a variety of known and unknown risks

and uncertainties which could cause actual events or results to differ materially from those reflected in the Forward -looking

Statements.

The Forward-looking Statements in this news release may include, without limitation, statements about the timing of the delisting

of the Chesser Shares from the ASX; exploration on the Diamba Sud gold project; the ability to expand and prove a mineral resource

at the Diamba Sud gold project , and other similar statements. Often, but not always, these Forward-looking Statements can be

identified by the use of words such as "anticipated", “estimated”, “potential”, “open”, “future”, “assumed”, “projected”, “used”,

“detailed”, “has been”, “gain”, “planned”, “reflecting”, “will”, “anticipated”, “estimated” “containing”, “remaining”, “to be ”, or

statements that events, “could” or “should” occur or be achieved and similar expressions, including negative variations.

Forward-looking Statements involve known and unknown risks, uncertainties, and other factors, many of which are beyond the

ability of the Company to control or predict and which may cause actual results, performance, or achievements to be materially

different from any results, performance or achievements expressed or implied by the Forward -looking Statements. Such risks,

uncertainties and factors include, among others, the ability to access various sources of debt and equity capital, generally and on

acceptable terms; changes in general economic conditions and financial markets; changes in the prices of key supplies;

technological and operational hazards in the Company mine development activities; operational risks associated with mining and

mineral processing; uncertainty relating to Mineral Resource and Mineral Reserve estimates; uncertainty relating to capital and

operating costs, production schedules and economic returns; uncertainties related to new mining operations and development

projects such as the Séguéla Project and newly acquired Diamba Sud Gold Project, including the possibility that actual capital and

operating costs and economic returns will differ significantly from those estimated for such projects prior to production;

uncertainty relating to the costs of the construction, the financing of construct ion and timing for the completion of the Séguéla

Project and the development of the Diamba Sud Gold Project ; risks relating to the Company’s ability to replace its Mineral

Reserves; risks associated with mineral exploration and project development; uncertainty relating to the repatriation of funds as

a result of currency controls; environmental matters including obtaining or renewing environmental permits and potential liability

claims; uncertainty r elating to nature and climate conditions; risks associated with political instability and changes to the

regulations governing the Company’s business operations; changes in national and local government legislation, taxation,

controls, regulations and poli tical or economic developments in countries in which the Company does or may carry on business;

risks associated with war, hostilities or other conflicts, such as the Ukrainian – Russian conflict, and the impact it may have on

global economic activity; ris ks relating to the termination of the Company’s mining concessions in certain circumstances; risks

related to the Company’s ability to develop and maintain relationships with local communities and stakeholders; risks associated

with losing control of public perception as a result of social media and other web -based applications; potential opposition to the

Company’s exploration, development and operational activities; risks related to the Company’s ability to obtain adequate

financing for planned exploration and development activities; property title matters; risks relating to the integration of businesses

and assets acquired by the Company; impairments; risks associated with climate change legislation; reliance on key personnel;

adequacy of insurance cover age; operational safety and security risks; legal proceedings and potential legal proceedings; the

ability of the Company to successfully contest and revoke the resolution issued by SEMARNAT which annuls the extension of the

environmental impact authorization for the San Jose mine; uncertainties relating to general economic conditions; risks relating to

a global pandemic which could impact the Company’s business, operations, financial condition and share price; competition;

fluctuations in metal prices; ris ks associated with entering into commodity forward and option contracts for base metals

production; fluctuations in currency exchange rates and interest rates; tax audits and reassessments; risks related to hedgin g;

uncertainty relating to concentrate trea tment charges and transportation costs; sufficiency of monies allotted by the Company

for land reclamation; risks associated with dependence upon information technology systems, which are subject to disruption,

damage, failure and risks with implementation and integration; labor relations issues; as well as those factors discussed under

“Risk Factors” in the Company's Annual Information Form. Although the Company has attempted to identify important factors

that could cause actual actions, events, or results to differ materially from those described in Forward -looking Statements, there

may be other factors that cause actions, events, or results to differ from those anticipated, estimated or intended.

- 3 -

Although Forward-looking Statements contained in this news release is based upon what the Company believes are reasonable

assumptions at the time they were made, such statements are made as of the date hereof and the Company disclaims any

obligation to upd ate any Forward -looking Statements, whether as a result of new information, future events, or results or

otherwise, except as required by law. There can be no assurance that these Forward-looking Statements will prove to be accurate,

as actual results and future events could differ materially from those anticipated in such statements. Accordingly, no assurance

can be given that any events anticipated by the Forward -looking Statements will transpire or occur, or if any of them do, what

benefits or liabilities Fortuna will derive from them. For the reasons set forth above, investors should not place undue reliance on

Forward-looking Statements.