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Sherritt Provides Update on Joint Venture Activities in Cuba

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Sherritt Provides Update on Joint Venture Activities in Cuba

TORONTO, May 7, 202 6 – Sherritt International Corporation (“Sherritt” or the “Corporation”) (TSX:S)

provides the following update further to its May 4, 2026 news release regarding the Executive Order issued

by the U.S. administration on May 1, 2026 expanding its sanctions against Cuba (the “Executive Order”).

Brian Imrie , Richard Moat and Brett Richards have resigned from the Corporation’s Board of Directors

effective immediately.

Sherritt has not been formally designated under the Executive Order. However, such a designation could

occur at any time. In any event, the mere issuance of the Executive Order itself creates conditions that

materially alter the Corporation’s ability to op erate in the ordinary course, including activities related to

Sherritt’s Cuban joint venture operations.

Following consultation with its advisors, Sherritt has suspended its direct participation in joint venture

activities in Cuba, effective immediately. Sherritt is taking steps to repatriate Sherritt’s expatriate employees

in Cuba and Sherritt has requested that partners repatriate their expatriate personnel in Canada. Sherritt

has communicated such decisions in a letter to its Cuban partners.

Currently, there is no immediate impact on operations in Fort Saskatchewan, Alberta. The refinery is

continuing to produce finished nickel and cobalt for sale. The inventory of feed it has available for such

production is expected to last until approximately mid-June.

The Executive Order, and any designation under the Executive Order, may also result in financial or other

providers being unable or unwilling to continue to support Sherritt’s operation or other business activities.

Sherritt will continue to consult with its advisors and stakeholders as it assesses the implications of the

Executive Order.

About Sherritt

Sherritt is a world leader in using hydrometallurgical processes to mine and refine nickel and cobalt – metals

deemed critical for the energy transition. Leveraging its technical expertise and decades of experience in

critical minerals processing, Sherritt is committed to expanding domestic refining capacity and reducing

reliance on foreign sources. The Corporation operates a strategically important refinery in Alberta, Canada,

recognized as the only significant cobalt refinery and one of just three nickel refineries in North America.

Sherritt’s common shares are listed on the Toronto Stock Exchange under the symbol “S”.

For further information, please contact:

Investor Relations

Email: [email protected]

Telephone: (416) 935-2451

www.sherritt.com

Forward-Looking Statements

Certain statements and other information included in this press release may constitute “forward -looking information”

or “forward -looking statements” (collectively, “forward -looking statements”) under applicable securities laws (such

statements are often accompanied by words such as “anticipate”, “forecast”, “expect”, “believe”, “may”, “will”, “should”,

“estimate”, “intend” or other similar words). All statements in this press release, other than those relating to historical

information, are forward -looking statements. Forward looking statements in this press release include, without

limitation, statements regarding the implications of the Executive Order; the potential designation of Sherritt under the

Executive Order, including that such designation could occur at any time; expectations regarding the availability and

duration of feed inventory to support production at the Fort Saskatchewan refinery; and the implications of the

suspension of Sherritt’s participation in Cuban joint venture activities.

The Corporation cautions readers of this press release not to place undue reliance on any forward -looking statement

as a number of factors could cause actual future results, conditions, actions or events to differ materially from the

targets, expectations, estimates or intentions expressed in the forward -looking statements. The key risks and

uncertainties should be considered in conjunction with the risk factors described in the Corporation’s other documents

filed with the Canadian securities authorities, i ncluding without limitation the “Managing Risk” section of the

Management’s Discussion and Analysis for the three months and year ended December 31, 2025 and the Annual

Information Form of the Corporation dated March 23, 2026 for the period ending December 31, 2025, which is available

on SEDAR+ at www.sedarplus.ca. The forward-looking information and statements contained in this press release are

made as of the date hereof and the Corporation undertakes no obligation to update publicly or revise any oral or written

forward-looking information or statements, whether as a result of new information, future events or otherwise, except

as required by applicable securities laws. The forward -looking information and statements contained herein are

expressly qualified in their entirety by this cautionary statement.