Tintina Mines Announces Voting Results from its Annual General and Special Meeting of Shareholders

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All resolutions approved, including the Minority Interest Acquisition, Control Person and Change of Management resolutions required to satisfy the Escrow Release Conditions

TORONTO, ON AND SANTIAGO, CHILE / ACCESS Newswire / August 21, 2026 / Tintina Mines Limited (TSXV:TTS) (“Tintina” or the “Company”) is pleased to announce the voting results from its annual general and special meeting of shareholders (the “Meeting”) held virtually on August 21, 2026. All matters put before shareholders at the Meeting were approved, including each of the resolutions required in order to satisfy the shareholder approval condition to the release of the escrowed gross proceeds of the Company’s previously announced C$91 million private placement (the “Offering”) of subscription receipts (“Subscription Receipts“), as described in the Company’s news releases dated June 2, 2026, July 2, 2026 and July 10, 2026, and in the Company’s management information circular dated July 30, 2026 (the “Circular”).

A total of 142,102,904 common shares in the capital of the Company (“Common Shares”) were represented in person (virtually) or by proxy at the Meeting, representing approximately 94.960% of the 149,644,251 Common Shares issued and outstanding as at the close of business on July 15, 2026, the record date for the Meeting. Capitalized terms used but not defined in this news release have the meanings given to them in the Circular.

The detailed voting results for each item of business are set out below.

Annual Business

Election of Directors. Shareholders elected each of the four nominees proposed by management to hold office until the proposed reconstitution of the board of directors (as defined below) upon completion of the Minority Interest Acquisition (as defined below and, together with the Offering, the “Transactions“) and the resulting exchange of the Subscription Receipts issued pursuant to the Offering. The results of the vote by ballot were as follows:

Re-Appointment of Auditors. Shareholders re-appointed Stern & Lovrics LLP as auditors of the Company for the ensuing year and authorized the directors to fix their remuneration, with 142,101,674 votes cast for and 500 votes withheld.

Ratification, Confirmation and Approval of Stock Option Plan. Shareholders ratified, confirmed and approved the Company’s “rolling” 10% stock option plan, with 141,964,112 votes (99.996%) cast for and 5,500 votes (0.004%) cast against.

Transaction Resolutions

Each of the Minority Interest Acquisition Resolution, the Control Person Resolution and the Management Change Resolution was approved by the requisite majority of the votes cast by disinterested shareholders, in each case excluding the votes described below.

Minority Interest Acquisition Resolution. The resolution approving the acquisition of the remaining 26.25% minority interest in Andean Belt Resources SpA (“ABR“) held by five entities controlled by Mr. Juan Enrique Rassmuss (the “Minority Interest Acquisition”) constituted a “related party transaction” under Multilateral Instrument 61-101 – Protection of Minority Security Holders in Special Transactions (“MI 61-101”) and accordingly required “minority approval” under Section 8.1 of MI 61-101. In determining whether minority approval was obtained, the Company excluded the votes attached to the 133,114,832 Common Shares beneficially owned, or over which control or direction is exercised, by Mr. Rassmuss, his related parties and joint actors. On a disinterested basis, 8,849,281 votes (99.938%) were cast for and 5,500 votes (0.062%) were cast against the Minority Interest Acquisition Resolution.

Control Person Resolution. The resolution approving GMC SPV Equity 01 Inc. (the “Anchor Investor”) becoming a new “Control Person” of the Company under the policies of the TSX Venture Exchange (the “TSXV”) required disinterested shareholder approval, excluding the votes attached to the Common Shares beneficially held by, or over which control or direction is exercised by, the Anchor Investor and its associates and affiliates. As the Anchor Investor and its associates and affiliates held no Common Shares as at the record date, no votes were excluded from this resolution. 141,964,112 votes (99.996%) were cast for and 5,500 votes (0.004%) were cast against the Control Person Resolution.

Management Change Resolution. The resolution approving the reconstitution of the board of directors and senior management of the Company, which constitutes a “Change of Management” under the policies of the TSXV, required disinterested shareholder approval, excluding the votes attached to the 160,000 Common Shares beneficially held by, or over which control or direction is exercised by, the proposed new directors and officers and their respective associates and affiliates. On a disinterested basis, 141,804,112 votes (99.996%) were cast for and 5,500 votes (0.004%) were cast against the Management Change Resolution.

A summary of the voting results on these three resolutions is set out below:

Next Steps

With the shareholder approvals described above having been obtained, the remaining conditions (the “Escrow Release Conditions“) to the release of the escrowed proceeds from the Offering are the closing of the Minority Interest Acquisition (subject only to the payment of the purchase price owing thereunder) and the receipt of all requisite regulatory approvals, including the approval of the TSXV. Upon satisfaction of the Escrow Release Conditions, which is expected to occur on August 24, 2026, the escrowed gross proceeds of the Offering will be released to the Company and the Subscription Receipts will be exchanged for their underlying securities of the Company. Concurrently with the closing of the Minority Interest Acquisition and the exchange of the Subscription Receipts, the board of directors of the Company will be reconstituted to consist of Mr. Mathieu Gignac, Mr. Koji Watanabe, Mr. Juan Enrique Rassmuss, Mr. Stefan Jochum and Mr. Vicente Irarrazaval, and Mr. Claude Dufresne will be appointed Chief Executive Officer and Mr. Christopher Stackhouse will be appointed Chief Financial Officer of the Company.

Management Commentary

Mr. Juan Enrique Rassmuss, Chairman and Chief Executive Officer of Tintina, stated – “We thank our shareholders for their strong support of these transactions. With shareholder approval now obtained, Tintina is positioned to consolidate 100% ownership of the Domeyko Sulfuros project and to advance it toward a final investment decision alongside our new partners.”

Claude Dufresne, Chief Executive Officer of G Mining Capital, stated – “The shareholder vote is the final major milestone before the release of the escrowed proceeds. We look forward to completing the remaining conditions and to working with Tintina, Sumitomo, the Gignac family and the broader investor group to advance Domeyko Sulfuros toward FID.”

About Tintina Mines Limited

Tintina Mines Limited (TSXV:TTS) is a TSXV-listed mineral exploration and development company focused on advancing the Domeyko Sulfuros Copper-Gold Project in the Atacama Region of Chile through ABR, its Chilean subsidiary. For more information, please visit www.tintinamines.com or refer to the Company’s filings on SEDAR+ at www.sedarplus.ca.

Cautionary Statement Regarding Forward-Looking Information

This news release contains “forward-looking information” within the meaning of applicable Canadian securities legislation that is based on current expectations, estimates, projections and interpretations about future events as at the date of this news release. In particular, although the shareholder approvals have been obtained at the Meeting and the gross proceeds of the Offering are being held in escrow, the conversion of the Subscription Receipts, release of the escrowed proceeds and completion of the Minority Interest Acquisition remain subject to the satisfaction or waiver, where permitted, of the remaining Escrow Release Conditions, including the receipt of final approval of the TSXV. Further forward-looking information includes, but is not limited to, information with respect to the anticipated use of proceeds from the Offering following release from escrow; the advancement of the Domeyko Sulfuros project toward FID; the completion of the Minority Interest Acquisition; and the reconstitution of the board of directors and senior management of the Company. Generally, forward-looking information can be identified by the use of forward-looking terminology such as “add” or “additional”, “advance”, “advancing” or “advancement”, “anticipates” or “anticipated”, “assumptions”, “believes”, “can be”, “continue” or “continuing”, “convert” or “conversion”, “deliver” or “delivering”, “estimates” or “estimated”, “expect”, “expected” or “expectations”, “forward”, “intends” or “intended”, “may”, “plans”, “pending”, “potential”, “preliminary”, “pro forma”, “projections”, “proposed”, “reflects”, “subject to”, “support”, “targeted”, “update”, “upside”, “will” or “will be”, “could”, “would”, “occur”, or “achievements”.

Forward-looking information is based on the opinions and estimates of management at the date the information is made, and is based on a number of assumptions and is subject to known and unknown risks, uncertainties and other factors that may cause the actual results, level of activity, performance or achievements of Tintina to be materially different from those expressed or implied by such forward-looking information, including, without limitation: the expectations and beliefs of Tintina that the conversion of the Subscription Receipts, the release of escrowed proceeds and the Minority Interest Acquisition will be completed in accordance with their respective terms and within the time frame that is currently anticipated; that all required regulatory approvals, including the approval of the TSXV, will be obtained; risks associated with required regulatory approvals; future commodity prices, including copper and gold; changes in foreign exchange and interest rates; actual results of current exploration activities; government regulation; political or economic developments in Chile; conflicts and their effect on supply chains; environmental risks; pandemic risks; permitting timelines; capital expenditures; operating or technical difficulties in connection with development activities; employee relations; the speculative nature of copper and gold exploration and development, including the risks of diminishing quantities or grades of reserves; contests or uncertainties over title to properties; tax considerations and changes in tax law or the interpretation thereof; changes in project parameters as plans continue to be refined; as well as those risk factors discussed in Tintina’s management’s discussion and analysis and other continuous disclosure filings under its profile on SEDAR+ at www.sedarplus.ca. Tintina cautions that the foregoing list of material factors and assumptions is not exhaustive. Although Tintina has attempted to identify important factors that could cause actual results to differ materially from those contained in forward-looking information, there may be other factors that cause results not to be as anticipated, estimated or intended. Accordingly, readers should not place undue reliance on forward-looking information. Tintina does not undertake to update any forward-looking information, except in accordance with applicable securities laws.

For Further Information

Tintina Mines Limited
Juan Enrique Rassmuss, President, Chairman & Chief Executive Officer
[email protected]
1 (416) 848-0106

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this news release.

SOURCE: Tintina Mines Limited

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