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Sherritt Responds to Requisition

Legal & Disputes Company Commentary

NOT FOR DISTRIBUTION TO UNITED STATES NEWSWIRE SERVICES

OR FOR DISSEMINATION IN THE UNITED STATES

Sherritt Responds to Requisition

TORONTO, July 31, 2026 – Sherritt International Corporation (“Sherritt” or the “Corporation”) (TSX:S) today announced

its response to the requisition received from Kyma Capital Opportunities Master Fund Limited (“Kyma”), a beneficial

shareholder, on July 22, 2026 to reconstitute the Board with two new directors and Kyma's existing Board nominee.

Following careful review and consultation with legal counsel, the board of directors of the Corporation (the “Board”) has

determined that the requisition is rendered ineffective under the Canada Business Corporations Act (the “CBCA”),

because the Corporation has already announced an annual meeting to be held on December 15, 2026, published a

record date of October 30, 2026, and given written notice to the Toronto Stock Exchange in accordance with the CBCA.

Notwithstanding this determination, the Corporation has advised Kyma that it will convert the previously announced

annual meeting into a combined annual and requisitioned special meeting and will include all of the proposals set out

in the requisition as business to be considered at the meeting.

As previously announced in the Corporation's news release dated July 13, 2026, and as communicated to Kyma, the

determination of the December 15, 2026 meeting date was informed by the Corporation's ongoing discussions

regarding the potential transaction contemplated by the non-binding term sheet with Gillon Capital, LLC. In considering

Kyma’s requisition, the Board observe s that the date selected will also allow the Corporation to continue its efforts to

engage and present an auditor for appointment at the meeting, which further supports the Board’s initial determination.

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 Corporation’s

intention to convert the previously announced annual meeting into a combined annual and requisitioned special meeting

and to include the proposals set out in the requisition as business to be considered at that meeting; and the anticipated

timing of the December 15, 2026 meeting.

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. Such factors include,

without limitation, continued risks related to Sherritt’s operations in Cuba and future actions taken by the U.S.

government toward Cuba, including with respect to the Executive Order; level of liquidity of Sherritt, including access

to capital and financing; the risk to or loss of Sherritt’s entitlements to future distributions (including pursuant to the

Cobalt Swap) from the Moa JV; the inability of the Corporation to comply with debt restrictions and covenants; the

inability of the Corporation to comply with the listing requirements of the Toronto Stock Exchange or another recognized

stock exchange; uncertainty in the ability of the Corporation to enforce legal rig hts in foreign jurisdictions; uncertainty

regarding the interpretation and/or application of the applicable laws in foreign jurisdictions; tax risks; political, economic

and other risks of foreign operations; security market fluctuations and price volatili ty; risks related to environmental

liabilities including liability for reclamation costs, tailings facility failures and toxic gas releases; compliance with

applicable environment, health and safety legislation and other associated matters; risks associated with governmental

regulations regarding climate change and greenhouse gas emissions; risks relating to community relations; maintaining

social license to grow and operate; risks associated with the operation of large projects generally; the ability to replace

depleted mineral reserves; risks associated with the Corporation’s joint venture partners; risks associated with mining,

processing and refining activities; reliance on key personnel and skilled workers; risks related to the Corporation’s

corporate structure; foreign exchange and pricing risks; credit risks; future market access; interest rate changes; risks

in obtaining insurance; uncertainties in labour relations; legal contingencies; risks related to the Corporation’s

accounting policies; uncertainty in the ability of the Corporation to obtain government permits; failure to comply with, or

changes to, applicable government regulations. The key risks and uncertainties should be considered in conjunction

with the risk factors described in the Corporat ion’s other documents filed with the Canadian securities authorities,

including 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 Corpor ation

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.