Mandalay Resources Announces 2025 Outlook and Guidance for Gold and Antimony Production

TORONTO, Dec. 17, 2024 - Mandalay Resources Corp. ("Mandalay" or "the Company") (TSX: MND) (OTCQB: MNDJF) is pleased to provide its production and cost guidance for 2025, which reflects the Company's continued commitment to operational excellence, sustainable growth, and delivering value to shareholders. All currency references are in USD unless noted.

Highlights:

• 2024 consolidated production remains within previous guidance of 90,000 - 100,000 gold equivalent ounces;
• 2025 consolidated production and cost guidance:
  • Annual production of 85,000 - 95,000 gold equivalent ounces;
    • Gold: 76,500 - 85,000 ounces;
    • Antimony: 1,050 - 1,150 tonnes;
  • Cash cost and all-in sustaining cost¹ of $1,200 - $1,350 and $1,795 - $1,975 per gold equivalent ounce, respectively;
  • Sustaining capital expenditures of $43 - $48 million;
    • Costerfield: $18 - $20 million; and
    • Björkdal: $25 - $28 million.

Frazer Bourchier, President and CEO, commented:

"2024 has been a transformative year as we built on the strong foundation from our two producing assets in premier jurisdictions. Our commitment to excellence remains steadfast with a focus on maintaining rigorous operational and safety metrics to enable robust cash flow. We are pleased to re-affirm that we will meet our 2024 production guidance. Our strong operating performance in 2024 allowed us to build a cash-rich balance sheet with no debt.

"Looking ahead to 2025, we expect to continue to generate robust cashflow from both gold and antimony production. Due to planned mine sequencing, we expect Costerfield's 2025 production to be 43,000 - 48,000 gold equivalent ounces followed by higher production in 2026. 2025 is a key mine development year at Costerfield with a planned investment of $18 - $20 million in sustaining capital, to enable mining flexibility, long-term growth, and sustained profitability.

"At Björkdal, gold production in 2025 is expected to remain consistent with 2024 levels, supported by stable processed grades and tonnage. Our plan continues to prioritize higher-margin underground material while leveraging the existing low-grade stockpiles to fully utilize the plant's 1.4 million tonne per annum capacity.

"Our planned exploration investment continues to underscore our commitment to replacing mine depletion, extending mine life, and pursuing near-mine discovery opportunities at both operations."

2025E Guidance Summary and Key Q1 Dates:

• Q4 and year-end 2024 production results will be reported on January 13, 2025;
• Q4 and year-end 2024 financial results will be reported on February 20, 2025, with a conference call on February 21, 2025; and
• 2024 year-end Mineral Reserves and Resources update for Costerfield and Björkdal will be reported the week of February 24, 2025.

About Mandalay Resources Corporation:

Mandalay Resources is a Canadian-based natural resource company with producing assets in Australia (Costerfield gold-antimony mine) and Sweden (Björkdal gold mine). The Company is focused on growing its production and reducing costs to generate significant positive cashflow. Mandalay is committed to operating safely and in an environmentally responsible manner, while developing a high level of community and employee engagement.

Mandalay's mission is to create shareholder value through the profitable operation and successful exploration at its Costerfield and Björkdal mines. Currently, the Company's main objectives at Costerfield are to continue mining the high-grade Youle and Shepherd veins, and to extend Mineral Reserves. At Björkdal, the Company will aim to increase production from the Eastern Extension area and other higher-grade areas in the coming years in order to maximize profit margins from the mine.

Forward-Looking Statements:

This news release contains "forward-looking statements" within the meaning of applicable securities laws, including statements regarding the Company's expected production of gold and antimony and costs for the 2025 fiscal year. Readers are cautioned not to place undue reliance on forward-looking statements. Actual results and developments may differ materially from those contemplated by these statements depending on, among other things, changes in commodity prices and general market and economic conditions. The factors identified above are not intended to represent a complete list of the factors that could affect Mandalay. A description of additional risks that could result in actual results and developments differing from those contemplated by forward-looking statements in this news release can be found under the heading "Risk Factors" in Mandalay's annual information form dated March 28, 2024, a copy of which is available under Mandalay's profile at www.sedar.com. In addition, there can be no assurance that any inferred resources that are discovered as a result of additional drilling will ever be upgraded to proven or probable reserves. Although Mandalay 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 not to be as anticipated, estimated or intended. There can be no assurance that forward-looking statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking statements.

Non-IFRS Measures:

This news release may contain references to Income from mine operations before depreciation & depletion, adjusted EBITDA, adjusted net income, free cash flow, cash cost per ounce of gold equivalent produced and all-in sustaining cost all of which are non-IFRS measures and do not have standardized meanings under IFRS. Therefore, these measures may not be comparable to similar measures presented by other issuers.

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SOURCE Mandalay Resources Corporation