Mr. Richard Young reports

ARGONAUT GOLD ANNOUNCES FIRST QUARTER FINANCIAL AND OPERATING RESULTS

Argonaut Gold Inc. today released its financial and operating results for the first quarter ended March 31, 2024. All dollar amounts are expressed in United States dollars, unless otherwise specified. During the quarter, Argonaut entered into a definitive agreement whereby Alamos Gold Inc. will acquire all of the issued and outstanding shares of Argonaut pursuant to a court approved plan of arrangement. As part of the transaction, Alamos will acquire Argonaut's Magino mine and in which Argonaut's assets in the United States and Mexico will be spun out to its existing shareholders within a newly created junior gold producer (SpinCo).

"At our flagship Magino mine, ramp-up of mining and milling activities during the first quarter of the year proceeded at a slower rate than planned. Mining rates were lower than planned due to low loader availability. However, mining rates are improving, as expected with a second PC3000 shovel commissioned in late April, which has resulted in mining rates of 65,000 tonnes per day during the first part of May. Mill throughput rates on a tonne per operating hour basis were largely in line with nameplate rates, however plant availability was low due to a number of significant unplanned downtime events. A specialist team was brought in to assist the mill maintenance team to make the necessary repairs and optimizations to the plant. That work is expected to be completed by the end of the second quarter, which should put the mill on track to achieve nameplate capacity in the second half of the year.

"During the quarter, Florida Canyon delivered strong production while securing the required permits to construct phase III of the South heap leach pad which is expected to be completed in the third quarter 2024. The company expects to publish a NI 43-101 technical report in the second quarter 2024 which incorporates the 2023 exploration results and updates to the operating plan.

"The agreement with Alamos provides a unique opportunity to place Magino in the hands of a company with stronger financial capacity to complete the ramp-up and optimization of Magino. Ultimately, this decision provides long-term upside potential for all stakeholders," stated Richard Young, president and chief executive officer of Argonaut Gold.

The definitive agreement Argonaut entered into with Alamos resulted in a number of significant changes to the presentation of the financial statements and expenses. The statements reflect three major changes related to the transaction.

• The company's Florida Canyon mine in the United States and the company's assets in Mexico have been consolidated into one line item in the financial statements as assets/liabilities held for sale and discontinued operations.
• The company's debt facilities have been classified as current liabilities as under the loan agreements the full amount is due on a change of control.
• The company recorded write downs on the carrying value of its property, plant and equipment for the Magino mine and the Mexican operations to the expected proceeds under the transaction or disposal.

In addition, the company recognized transaction expenses related to the refinancing and transaction during the quarter.

First quarter company highlights

Financial overview

• The financial highlights, including revenue, cost of sales and gross loss, relate to the Magino mine only, as the results for Florida Canyon and the Mexican mines have been reclassified as discontinued operations.
• The Magino mine's revenue and costs of sales were below plan due to lower-than-expected production due to lower mill throughput and grades processed.
• Net loss from continuing operations of $333.8-million was larger than the previous-year period due to an impairment recorded for the Magino mine, higher income tax expense and higher net finance expense that was previously capitalized in the prior period and the recognition of a gross loss for Magino in the first quarter of 2024.
• Other expense was also higher than the prior comparative period due to a higher loss on derivative instruments as well as transaction costs for refinancing arrangements and the transaction.
• Cash outflows from continuing operations was larger than the prior-year period mainly due to changes in working capital. Operating activities before working capital and other items totalling $5.4-million was comparable with the prior-year period amount.
• Cash and cash equivalents including cash held in assets held for sale was $28.8-million and net debt was $186.5-million as at March 31, 2024.
• Consolidated GEO gold equivalent ounce production of 49,444 was 28 per cent higher than the prior year three-month period due to the contribution of production at the Magino mine.
• On March 27, 2024, the company entered into a definitive agreement to sell all of the issued and outstanding shares of Argonaut to Alamos. Concurrently, Argonaut's assets in the United States and Mexico will be spun out to its existing shareholders as a newly created junior gold producer. As a result of the transaction, the Florida Canyon mine in the United States and La Colorada mine, San Agustin mine, El Castillo mine, and Cerro del Gallo project in Mexico are accounted for as assets held for sale and discontinued operations.
• On March 28, 2024, the company obtained a waiver on certain financial covenants on its $250-million financing package. It was anticipated the company would not be in compliance with certain financial covenants as at March 31, 2024, and accordingly the company obtained the waiver to prevent a default event which could trigger the loan facilities becoming immediately due and payable. This waiver includes requirements for the company to maintain a minimum cash balance of $20-million at all times until June 28, 2024, and for the transaction to be completed by the same date. An unremediated breach of covenants can have an adverse impact on the company's liquidity and solvency.
• On April 4, 2024, the company closed a non-brokered private placement, pursuant to which Alamos subscribed for 174,825,175 common shares of Argonaut, representing approximately 13.8 per cent of Argonaut's total outstanding common shares after giving effect to the private placement. The acquired shares were acquired at a price of 28.6 Canadian cents per share, for total gross proceeds to Argonaut of $37.0-million ($50-million (Canadian)).

Growth highlights

Magino mine

• During the first quarter, the daily mining rates increased month over month from an average of 45,600 tonnes per day (tpd) in the fourth quarter to 47,400 tpd in January, to 53,200 tpd in February and 54,600 tpd in March. Over all, material movement in the first quarter was 13 per cent higher than the fourth quarter of 2023.
• As expected, the increased mining and haulage rates can be attributed to further utilization of the fleet management system and the commissioning of four additional haul trucks.
• With the second PC3000 shovel commissioned in the second quarter of 2024, daily mining rates are expected to increase to approximately 65,000 tpd by the second half of 2024.
• Milled gold grade continues to improve, with the first quarter grade milled averaging 0.98 grams per tonne (gpt), 6 per cent higher than the fourth quarter gold grade of 0.92 gpt. Monthly average gold grades were 0.99 gpt in January, 1.02 gpt in February and 0.93 gpt in March.
• Plant throughput averaged 5,132 tpd in January, 6,855 tpd in February and 6,973 tpd in March for a first quarter average of 6,308 tpd. Note that tonnes milled per operating hour were largely in line with design rates in the quarter, the shortfall in mill throughput was attributed to lower-than-expected mill operating time.
• Mill availability was impacted by unplanned downtime related to ball mill coupling failures, the premature wear and replacement of conveyor belts and ball mill liner failures, as well as a fire within the rubber-lined chute.
• Plant availability is expected to improve through the second quarter reflecting continuing work to optimize the milling and crushing circuits, including replacement of the conveyor belts and mill liners with high-quality components which was going through the first quarter, and into the second quarter.
• This drove a significant increase in throughput rates in April to average 9,252 tonnes per day, the highest monthly average since commissioning in the second quarter of 2023.
• During the three months ended March 31, 2024, the Magino mine produced 16,870 gold ounces and sold 17,182 gold ounces. Production was lower than expected in part due to lower-than-expected mill operating time and gold grade processed. April, 2024, production improved to 8,370 GEOs, well above the monthly average of 5,600 GEOs in the first quarter.
• The infill drill program to convert mineral resources to reserves and the mill expansion studies were paused as of the date of the transaction. These activities are anticipated to resume in the third quarter.

Florida Canyon mine

• First quarter 2024 ounce production was marginally better than planned at 18,516 GEOs, continuing to build on 2023's strong performance.
• All permits to construct phase III of the South heap leach pad have been received and construction has been continuing since December, 2023. The project is proceeding on time and budget and is expected to be completed in the third quarter of 2024.
• Analysis and modelling work incorporating the 2023 exploration drilling is continuing.
• The company expects to publish a National Instrument 43-101 technical report in the second quarter 2024 which incorporates the 2023 exploration results and updates to the operating plan.
• The NI 43-101 technical report is expected to include the results of the sulphide proof of concept drill program in 2023.

Full details of the transaction will be included in a management information circular of Argonaut Gold that is expected to be mailed to Argonaut Gold shareholders on or about May 30, 2024. The proposed transaction will be completed pursuant to a plan of arrangement completed under the Business Corporations Act (Ontario). The transaction will require approval by 66.67 per cent of the votes cast by the shareholders of Argonaut at a special meeting of Argonaut shareholders expected to be held in June, 2024.

This press release should be read in conjunction with the company's consolidated financial statements for the quarter ended March 31, 2024, and associated management's discussion and analysis (MD&A) for the same period, which are available on the company's website, in the investors section under financial filings and under the company's issuer profile on SEDAR+.

Technical information and qualified persons

The technical information contained in this document has been prepared under the supervision of, and has been reviewed and approved by, Owen Nicholls, CPG, Argonaut's vice-president of exploration, and Marc Leduc, PEng, chief operating officer; both are qualified persons as defined by NI 43-101.

About Argonaut Gold Inc.

Argonaut Gold is a Canadian-based gold producer with a portfolio of operations in North America. Focused on becoming a low-cost, mid-tier gold producer, Argonaut's flagship asset, the Magino mine, located in Ontario Canada, is expected to become Argonaut's largest and lowest cost mine.

On March 27, 2024, the company announced the sale of the company to Alamos Gold. Concurrent with this transaction, Argonaut's assets in the United States and Mexico will be spun out to its existing shareholders as a newly created junior gold producer (SpinCo). SpinCo will own the Florida Canyon mine in the United States, as well as the El Castillo complex, the La Colorada operation and the Cerro del Gallo project, located in Mexico. The shareholder vote is expected to take place in June, 2024.

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