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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

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FORM 10-K

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For the transition period from              to

Commission file number: 001-09025

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VISTA GOLD CORP.

 (Exact Name of Registrant as Specified in its Charter)

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(720) 981-1185

(Registrant’s Telephone Number, including Area Code)

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SECURITIES REGISTERED PURSUANT TO SECTION 12(b) OF THE ACT:

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SECURITIES REGISTERED PURSUANT TO SECTION 12(g) OF THE ACT:  None

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Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ◻ No⌧

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Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes ◻ No⌧

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Indicate by checkmark whether the registrant (1) filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Yes ⌧ No ◻

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Indicate by check mark whether the Registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ⌧ No ◻

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Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

      Large Accelerated Filer ◻      Accelerated Filer ◻      Non-Accelerated Filer ⌧ Smaller Reporting Company ☒ Emerging growth company ☐  

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If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ◻

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Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☐

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If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. ☐

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Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b). ◻

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Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes ☐ No⌧

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State the aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day of the registrant’s most recently completed second fiscal quarter: $57,476,000

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The number of shares of the Registrant’s Common Stock outstanding as of February 24, 2025 was 123,752,011.

Documents incorporated by reference: To the extent herein specifically referenced in Part III, portions of the Registrant’s Definitive Proxy Statement on Schedule 14A for the 2025 Annual General and Special Meeting of Shareholders are incorporated herein. See Part III.

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TABLE OF CONTENTS

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PART I

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ITEM 1. BUSINESS.

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In this annual report on Form 10-K, unless the context otherwise requires, the terms “we”, “us”, “our”, “Vista”, “Vista Gold”, or the “Company” refer to Vista Gold Corp. and its subsidiaries. References to AUD or A$ refer to Australian currency and USD or $ refer to United States currency, all in thousands, unless specified otherwise, except per share-related, per tonne, and per ounce amounts.

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Overview

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Vista Gold Corp. and its subsidiaries operate as a development-stage company in the gold mining industry. Vista does not currently generate cash flows from mining operations.

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Our flagship asset is the Mt Todd Gold Project (“Mt Todd” or the “Project”), a ready-to-build development-stage gold deposit located in the Tier-1 jurisdiction of Northern Territory, Australia (the “NT”). Mt Todd offers a large gold mineral reserve, development optionality, expansion opportunities, exploration upside, advanced local infrastructure, community support, and demonstrated economic feasibility.

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We are positioning Mt Todd as a leading development opportunity within the gold sector. Our strategy is to advance Mt Todd in ways that efficiently position the Project for development while exercising the discipline necessary to best realize value at the right time.

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We expect continued strength in the gold price and believe that ready-to-build projects like Mt Todd are attractive development opportunities in the current environment of a strong gold market, diminishing major deposit discoveries, and depleting gold reserves.

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The Project offers strategic optionality through development as a large or mid-scale project and has all major operating and environmental permits necessary to initiate development. A feasibility study for Mt Todd was completed in 2022, with material project costs and economic returns updated in 2024 (the “Mt Todd FS”). The Mt Todd FS demonstrates strong economics for development of a 50,000 tpd, nominally 17.5 million tpa, operation.

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In view of the substantial investment required to develop Mt Todd as a large-scale project, we completed an internal scoping study in 2023 for an alternative 15,000 tpd operation, nominally 5.2 million tpa. In 2024, we undertook additional internal assessments and trade-off studies to evaluate the economic potential for a range of processing and mining rates. These assessments identified the 15,000 tpd operation as the optimal alternative scale project. A project of this scale could reduce financing, development, and operating risks.

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In December 2024, Vista commenced a new Mt Todd feasibility study (the “2025 FS”) that aims to increase the reserve grade to 1 g Au/t using a higher cut-off grade and reduce the initial capex by 60% to about $400 million while achieving average annual gold production ranging from 150,000 – 200,000 ounces from 15,000 tpd or 5.2 million tpa throughput. By using contract mining, third-party power generation, and construction practices commonly used in Australia, we believe there is opportunity to maintain high capital efficiency at this project scale. The 2025 FS will leverage prior technical studies and the work completed for the Mt Todd FS, preserve the potential for future expansion, and demonstrate the opportunity for Mt Todd to deliver attractive economic returns.

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The Company undertook a drilling program during 2024 with a total of 34 holes for 6,776 meters drilled. The program was completed in December 2024 at a cost of $1,891. Results of the program indicate the potential to increase gold mineral reserves in the Batman deposit and successfully delineated the South Cross Lode (“SXL”) over a 400-meter strike length. These drill results, and those from the 2020-2022 drilling program, will be included in the block model for the updated Mt Todd mineral resources estimate and 2025 FS.

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During Phase 1, a total of 11 holes were drilled in the northern end of the Batman deposit including several holes drilled outside the limits of blocks defined in the current mineral resource model. This drilling, in conjunction with the 2020-2022 drilling program, provided information that extended the boundaries of the mineralization in the northern section of the Batman deposit.

Phase 1 drilling intercepted gold grades higher than estimated in the current block model and mineralization outside the limits of the current mineral resource envelope. We expect Phase 1 drilling to result in an increase in mineral resources in the north end of the Batman deposit. Additionally, we expect this drilling to result in the conversion of a portion of inferred mineral resources within the Mt Todd FS pit design to measured and indicated mineral resources.

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During Phase 2, a total of 23 holes were drilled in the SXL, a narrower mineralized structure adjacent to the Batman deposit that extends to the northeast with a current strike length of approximately 400 meters. Results from this drilling defined the mineralized boundaries of the SXL over the strike length drilled and intersected high-grade sub-structures in the lower portion of 13 holes. The drill hole spacings are acceptable for the definition of measured and indicated mineral resources and are expected to support the expansion in the northeastern section of the mineral resource shell in the new mineral resource model being completed as part of the 2025 FS. For more information on the Company’s 2024 drilling results, please refer to the Company’s 2024 and 2025 drilling news releases, available at www.sec.gov and under our profile at www.sedarplus.ca. The Company’s 2024 and 2025 drilling news release are referenced for informational purposes only and are not incorporated by reference into this annual report on Form 10-K and should not be considered part of this or any other report filed with the SEC.

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The Company continues to prioritize the efficient use of resources to advance Mt Todd. Our funding strategy is to maintain adequate liquidity while minimizing share dilution as we seek to preserve, enhance, and realize value from Mt Todd. The Company periodically raises funds in the capital markets and considers alternative strategies and possible strategic opportunities as ways to enhance its liquidity and deliver shareholder value.

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The Mt Todd FS contemplates a plant processing 50,000 tpd and demonstrates the underlying value potential of a large-scale gold project. Highlights include:

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After Vista completed the Mt Todd FS, the NT enacted the Mineral Royalties Act 2024 (“Royalties Act”) effective July 1, 2024. The Royalties Act replaces the prior net profits royalty regime with an ad valorem royalty regime for new mines. Under the Royalties Act, a 3.5% ad valorem royalty rate will be applied to gold production from Mt Todd. This represents a nearly 50% reduction in payable NT royalties compared to the Mt Todd FS and should result in improved project economics. Under the previous net profits royalty regime, our base case economic analysis at an $1,800 gold price estimated the payment of $765 million in NT royalties over the life of the mine.

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The Mt Todd FS includes mineral resource and mineral reserve estimates pursuant to Item 1300 of Regulation S-K (“S-K 1300”) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and Canadian Institute of Mining Metallurgy and Petroleum Definition Standards for Mineral Resources and Mineral Reserves (“CIM Definition Standards”) based on mine plans developed using a gold price in line with current market conditions at the time of the study.

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In addition to the technical advancements of the Project in 2023 and 2024, Vista has all major operating and environmental permits necessary to initiate development of Mt Todd. We have invested significant resources in water treatment and management, and environmental and social programs. We believe this has benefited our relationships with the traditional landowners, local communities, and Northern Territory, creating a strong social license.

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Vista was originally incorporated on November 28, 1983 under the name “Granges Exploration Ltd.” It amalgamated with Pecos Resources Ltd. during June 1985 and continued as Granges Exploration Ltd. In June 1989, Granges Exploration Ltd. changed its name to Granges Inc. Granges Inc. amalgamated with Hycroft Resources & Development Corporation during May 1995 and continued as Granges Inc. Effective November 1996, Da Capo Resources Ltd. and Granges, Inc. amalgamated under the name “Vista Gold Corp.” and, effective December 1997, Vista continued from the Province of British Columbia to the Yukon Territory, Canada under the Business Corporations Act (Yukon Territory). On June 11, 2013, Vista continued from the Yukon Territory, Canada to the Province of British Columbia, Canada under the Business Corporations Act (British Columbia). The current addresses and telephone numbers of our offices are:

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Human Capital Management

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As of December 31, 2024, we had 13 full-time and no part-time employees globally. In addition, we use consultants with specific skills to assist with various aspects of our corporate affairs, project evaluation, due diligence, corporate governance and property management.

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Our compensation programs are designed to align compensation of our employees with Vista’s corporate objectives and performance, and are designed to provide proper incentives to attract, retain and motivate employees to achieve superior results. The structure of our compensation programs balances competitive wages, benefits and incentive earnings for both short-term and long-term performance.

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The health and safety of our employees, contractors, and the communities in which we operate are high priorities in the way we manage our business. Oversight is provided by the Company’s board of directors (the “Board of Directors”) and the Board of Directors’ Health, Safety, Environment and Social Responsibility Committee. Management utilizes the principles set out in our Health & Safety Policy to administer health and safety programs. Employees and others entering our workplaces are provided with and required to use personal protective equipment appropriate for their duties. Each employee and visitor to our workplaces receives relevant orientation and is required to adhere to our established site health and safety protocols. In addition, we comply with relevant policies and regulations enacted by regulatory agencies in the jurisdictions where we operate. Our compensation programs include consideration of health and safety performance in determining incentive awards.

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It is Vista’s priority to maintain a culture of ethical performance as a core value, as reflected in the Company’s Code of Business Conduct and Ethics and other related policies. Oversight is provided by the Board of Directors and, for specific areas of performance, by committees of the Board of Directors. Periodically, our employees are required to review the Code of Business Conduct and Ethics and acknowledge their understanding of the content and intent to comply. Our compensation programs include consideration of ethical performance in determining incentive awards.

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Vista values the diversity and talents of its team, collectively working together in an inclusive environment to achieve corporate goals and personal professional development objectives. We cultivate a culture that is sensitive to the importance of diversity and inclusion in the workplace.

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Environmental, Social, and Governance Responsibility

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Vista is committed to implementing and continuing to improve business practices that are designed to minimize environmental impacts of our operating activities, support the people and communities within our areas of influence, and appropriately manage the business affairs of our organization. We believe part of being a good corporate citizen requires a dedicated focus on how we affect the environment and fulfill our responsibilities to stakeholders. In particular, through our planning for development of Mt Todd, we have worked closely with governmental entities in the NT and local groups, including the Jawoyn Association Aboriginal Corporation (the “Jawoyn Association”), to strive towards an environmentally sound and socially responsible development plan.

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Segment Information

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We have one reportable segment, consisting of acquisition, exploration and evaluation activities which are focused on Australia. We reported no mining operating revenues during the years ended December 31, 2024 and 2023. Additional segment-level disclosure is provided in Note 11 – Segment Information. Geographic location of mineral properties and plant and equipment is provided in Note 3 – Mineral Properties and Note 4 – Plant and Equipment to our Consolidated Financial Statements under the section heading “Item 8. Financial Statements and Supplementary Data” below.

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Reclamation

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The Mt Todd site was not reclaimed by the predecessor owners when the mine closed in 2000. Reclamation obligations associated with this period and prior to Vista’s acquisition in 2006 are presently the responsibility of the NT Government. After we provide notice to the NT Government that we intend to proceed with development, the Company will then assume these historical rehabilitation liabilities, currently stated by the NT Government at A$73 million. As a result, we would be required to mitigate long-term environmental impacts, including any of those existing prior to 2006, that are not otherwise mitigated during the life of mine, by stabilizing, contouring, re-sloping and re-vegetating various portions of the Project after mining and mineral processing operations are completed. Reclamation programs would be conducted in accordance with detailed plans, which would be finalized and reviewed by the appropriate regulatory agencies at the time of the execution of the programs.

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Government Regulation

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Our exploration and development activities and other property interests are subject to various national, state, territorial, provincial, and local laws and regulations in Australia and other jurisdictions, which govern prospecting, development, mining, mine safety, production, exports, taxes, labor standards, occupational health, waste disposal, protection of the environment, the use and disposal of hazardous substances, and other matters. We have obtained all major authorizations to initiate development of Mt Todd and have other minor licenses, permits or other authorizations currently required to conduct our exploration, site management, and other programs. We believe we comply in all material respects with applicable mining, health, safety and environmental statutes and regulations in all the jurisdictions in which we operate.

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Australian Laws

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Mineral projects in the NT are subject to Australian federal and NT laws and regulations regarding environmental matters and the use and disposal of hazardous wastes and materials. As with all mining projects, development and operation of Mt Todd is expected to have a variety of environmental impacts. We are required under Australian laws and regulations (federal and territorial) to acquire permits and other authorizations before Mt Todd can be developed and mined. In September 2014, the environmental impact statement (“EIS”) for Mt Todd was approved. The Environmental Protection Agency of the Northern Territory Government (“NT EPA”) advised that it had assessed the environmental impacts of the proposed gold mine at Mt Todd and authorized the Company to proceed with development, subject to a number of recommendations as outlined in the assessment report (the “Assessment Report”). The Assessment Report included a request for Vista to secure an authorization under the federal Environmental Protection and Biodiversity Conservation Act 1999 (“EPBC”) as it relates to the Gouldian Finch. In January 2018, the authorization required by the EPBC was approved by the Australia Department of the Environment and Energy. We must comply with the terms of our Authority Certificate under the Northern Territory Aboriginal Sacred Sites Act 1989 which deals with the handling of archeological material and sacred sites.

We are also subject to statutory requirements under the NT Mining Management Act, which includes the requirement to have a mining authorization before the start of mining operations. The mining authorization is issued after the approval of the mining license. It is the legal document that makes the mining license and any additional conditions binding for the project. The Mt Todd Mining Management Plan (“MMP”) and associated mining authorization were approved by the Northern Territory Department of Industry, Tourism and Trade in June 2021. As a result of recent changes to the Mining Management Act, all MMPs were converted to Deemed Mining Licenses in July 2024, and companies have four years to convert the Deemed Mining Licenses to Mining Licenses. In the interim period, the Deemed Mining License ensures the same rights and obligations as determined in the MMP.

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Environmental Regulation

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Mt Todd is subject to various federal, territorial, and local laws and regulations governing protection of the environment. Such laws and regulations are continually changing and, in general, are becoming more restrictive. Our policy is to conduct business in a way that safeguards public health and the environment. We believe that our operations are conducted in material compliance with applicable laws and regulations.

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Changes to current local, territorial, or federal laws and regulations in the jurisdictions where we have exploration and development activities could require additional capital expenditures and increase operating and/or reclamation costs. We are unable to predict what additional legislation, if any, might be proposed or enacted, or what additional regulatory requirements could impact the economics of Mt Todd.

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During 2023, Mt Todd did not have any material non-compliance occurrences with any applicable environmental laws and regulations. See “Item 1. Business – Reclamation”, above.

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Competition

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We compete with other mining companies to acquire, explore, finance, and develop gold properties and to retain expert consultants required to complete our geological and project development studies. We also compete with other mining companies to hire mining engineers, geologists and other skilled personnel in the mining industry, and for exploration and development services. Some of these competing mining companies have substantially greater financial and technical resources than Vista. As a result, we may have difficulty acquiring attractive gold projects at reasonable prices, engaging skilled consultants with sufficient resources to support timely completion of work programs, and attracting and retaining qualified personnel.

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Gold Price History

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The price of gold is volatile and is affected by numerous factors, all of which are beyond our control, such as the sale or purchase of gold by various central banks and financial institutions, inflation, recession, fluctuation in the relative values of the U.S. dollar to foreign currencies, changes in global gold supply and demand, and political and economic conditions.

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The following table presents the high, low and average London Bullion Market Association PM Fix prices in U.S. dollars per troy ounce of gold over the past five years and during 2025 through February 20, 2025:

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Data Source: www.lbma.org.uk/prices-and-data/precious-metal-prices#/

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Available Information

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We make available, without charge, on or through our website at www.vistagold.com, our annual report on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and any amendments to those reports filed or furnished pursuant to Sections 13(a) or 15(d) of the Exchange Act. Our website and the information contained therein or connected thereto are not intended to be, and are not, incorporated into this annual report on Form 10-K.

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Metric Conversion Table

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Glossary of Selected Mining Terms

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“bedding” means the characteristic structure of sedimentary rock in which layers of different composition, grain size or arrangement are layered one on top of another in a sequence with oldest on the bottom and youngest at the top.

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“comminution” means the process in which ore is broken into small fragments by crushing, grinding, and other processes.

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“conglomerate” refers to clastic sedimentary rock that contains rounded particles that are greater than two millimeters in diameter. The space between the pebbles is generally filled with smaller particles and/or a chemical cement that binds the rock together.

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“cut-off grade” means the grade (i.e., the concentration of metal or mineral in rock) that determines  the destination of the material during mining. For purposes of establishing prospects of economic extraction, the cut-off grade is the grade that distinguishes material deemed to have no economic value from material deemed to have economic value.

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“deposit” is an informal term for an accumulation of mineralized material.

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“development stage issuer” is an issuer that is engaged in the preparation of mineral reserves for extraction on at least one material property.

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“development stage property” is a property that has mineral reserves disclosed, pursuant to S-K 1300, but no material extraction.

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“feasibility study” is a comprehensive technical and economic study of the selected development option for a mineral project that includes appropriately detailed assessments of realistically assumed mining, processing, metallurgical, economic, marketing, legal, environmental, social and governmental considerations together with any other relevant operational factors and detailed financial analysis that are necessary to demonstrate at the time of reporting that extraction is reasonably justified or economically viable. The results of a feasibility study may reasonably serve as the basis for a final decision by a proponent or financial institution to proceed with, or finance, the development of a project. The confidence level of a feasibility study is higher than that of a preliminary feasibility study, initial assessment, or scoping study.

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“g Au/t” means grams of gold per tonne.

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“geosyncline” means a major trough or downwarp of the Earth’s crust, in which great thicknesses of sedimentary and/or volcanic rocks have accumulated.

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“indicated mineral resource” and “indicated resource” mean “indicated mineral resource” defined by S-K 1300 as that part of a mineral resource for which quantity and grade or quality are estimated on the basis of adequate geological evidence and sampling. The level of geological certainty associated with an indicated mineral resource is sufficient to allow a qualified person to apply modifying factors in sufficient detail to support mine planning and evaluation of the economic viability of the deposit. Because an indicated mineral resource has a lower level of confidence than the level of confidence of a measured mineral resource, an indicated mineral resource may be converted only to a probable mineral reserve.

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“inferred mineral resource” and “inferred resource” mean “inferred mineral resource” defined by S-K 1300 as that part of a mineral resource for which quantity and grade or quality are estimated on the basis of limited geological evidence and sampling. The level of geological uncertainty associated with an inferred mineral resource is too high to apply relevant technical and economic factors likely to influence the prospects of economic extraction in a manner useful for evaluation of economic viability. Because an inferred mineral resource has the lowest level of geological confidence of all mineral resources, which prevents the application of modifying factors in a manner useful for evaluation of economic viability, an inferred mineral resource may not be considered when assessing the economic viability of a mining project, and may not be converted to a mineral reserve.

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“measured mineral resource” and “measured resource” mean “measured mineral resource” defined by S-K 1300 as that part of a mineral resource for which quantity and grade or quality are estimated on the basis of conclusive geological evidence and sampling. The level of geological certainty associated with a measured mineral resource is sufficient to allow a qualified person to apply modifying factors in sufficient detail to support detailed mine planning and final evaluation of the economic viability of the deposit. Because a measured mineral resource has a higher level of confidence than the level of confidence of either an indicated mineral resource or an inferred mineral resource, a measured mineral resource may be converted to a proven mineral reserve or to a probable mineral reserve.

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“mineral reserve” is an estimate of tonnage and grade or quality of indicated and measured mineral resources that, in the opinion of the qualified person, can be the basis of an economically viable project. More specifically, it is the economically mineable part of a measured or indicated mineral resource, which includes diluting materials and allowances for losses that may occur when the material is mined or extracted.

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“mineral resource” is a concentration or occurrence of material of economic interest in or on the Earth's crust in such form, grade or quality, and quantity that there are reasonable prospects for economic extraction. A mineral resource is a reasonable estimate of mineralization, taking into account relevant factors such as cut-off grade, likely mining dimensions, location or continuity that, with the assumed and justifiable technical and economic conditions, is likely to, in whole or in part, become economically extractable. It is not merely an inventory of all mineralization drilled or sampled.

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“ore” means material containing minerals in such quantity, grade and chemical composition that they can be economically extracted.

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“ore sorting” means technology that separates “ore” and “waste” based on physical and/or chemical properties of the material being sorted.

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“oxide” means mineralized rock in which some of the original minerals have been oxidized (i.e., combined with oxygen). Oxidation tends to make the rock more porous and permits a more complete permeation of cyanide solutions so that minute particles of gold in the interior of the minerals will be more readily dissolved.

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“oz” or “ounce” means troy ounce and is equivalent to 31.10348 grams.

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“probable mineral reserves” under S-K 1300 is the economically mineable part of an indicated and, in some cases, a measured mineral resource.

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“proven mineral reserves” under S-K 1300 is the economically mineable part of a measured mineral resource and can only result from conversion of a measured mineral resource.

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“qualified person” or “QP” as defined under S-K 1300 (as defined below) is an individual who is: (1) a mineral industry professional with at least five years of relevant experience in the type of mineralization and type of deposit under consideration and in the specific type of activity that person is undertaking on behalf of the registrant; and (2) an eligible member or licensee in good standing of a recognized professional organization at the time the technical report is prepared. For an organization to be a recognized professional organization, it must: (i) be either: (A) an organization recognized within the mining industry as a reputable professional association; or (B) a board authorized by U.S. federal, state or foreign statute to regulate professionals in the mining, geoscience or related field; (ii) admit eligible members primarily on the basis of their academic qualifications and experience; (iii) establish and require compliance with professional standards of competence and ethics; (iv) require or encourage continuing professional development; (v) have and apply disciplinary powers, including the power to suspend or expel a member regardless of where the member practices or resides; and (vi) provide a public list of members in good standing.

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“qualified person” or “QP” as defined under NI 43-101 (as defined below) means an individual who (1) is an engineer or geoscientist with a university degree, or equivalent accreditation, in an area of geoscience, or engineering, relating to mineral exploration or mining; (2) has at least five years of experience in mineral exploration, mine development or operation, or mineral project assessment or any combination of these that is relevant to his or her professional degree or area of practice; (3) has experience relevant to the subject matter of the mineral project and the technical report; (4) is in good standing with a professional association; and (5) in the case of a professional association in a foreign jurisdiction, has a membership designation that (i) requires attainment of a position of responsibility in their profession that requires the exercise of independent judgment; and (ii) requires (A) a favorable, confidential peer evaluation of the individual’s character, professional judgment, expertise and ethical fitness; or (B) a recommendation for membership by at least two peers, and demonstrated prominence or expertise in the field of mineral exploration or mining. Note: a professional association is a self-regulatory organization of engineers, geoscientists or both that, among other criteria, requires compliance with the professional standards of competence and ethics established by the organization and has disciplinary powers over its members.

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“recovery” means that portion of the metal contained in the ore that is successfully extracted by processing and is expressed as a percentage.

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“sampling” means selecting a fractional, but representative, part of a mineral deposit for analysis.

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“strike” when used as a noun, means the direction, course or bearing of a vein or rock formation measured on a level surface and, when used as a verb, means to take such direction, course or bearing.

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“sulfide” means a compound of sulfur and some other element. From a metallurgical perspective, sulfide rock is primary rock that has not been oxidized. Both ore and waste may contain sulfide minerals.

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“tpa” means tonnes per annum.

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“tpd” means tonnes per day.

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“vein” means a fissure, fault or crack in a rock filled by minerals that have traveled upwards from some deep source.

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“waste” means rock lacking sufficient grade and/or other characteristics of ore.

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Cautionary Note to Investors Regarding Estimates of Measured, Indicated and Inferred Resources and Proven and Probable Mineral Reserves

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We are subject to the reporting requirements of the Exchange Act and applicable Canadian securities laws. As a result, we report our mineral resources and mineral reserves according to two different standards. For U.S. purposes, mineral property disclosures are reported in accordance with S-K 1300 under the Exchange Act, while Canadian disclosures are reported in accordance with Canadian National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”).

Both sets of reporting standards have similar goals in terms of conveying an appropriate level of confidence in the disclosures being reported, but the standards embody slightly different approaches and definitions.

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In our public filings in the U.S. and Canada and in certain other announcements not filed with the U.S. Securities Exchange Commission (“SEC”), we disclose proven and probable reserves and measured, indicated, and inferred resources, each as defined in S-K 1300 and NI 43-101. As currently reported, there are no material differences in our disclosed proven and probable reserves and measured, indicated, and inferred resource under each of S-K 1300 and NI 43-101. The estimation of measured resources and indicated resources involve greater uncertainty as to their existence and economic feasibility than the estimation of proven and probable reserves; therefore, investors are cautioned not to assume that all or any part of measured or indicated resources will ever be converted into S-K 1300-compliant or NI 43-101-compliant reserves. Estimations of inferred resources involve far greater uncertainty as to their existence and economic viability than the estimations of other categories of resources; therefore, it cannot be assumed that all or any part of inferred resources will ever be upgraded to a higher category. Investors are cautioned not to assume that all or any part of inferred resources exist, or that they can be mined legally or economically.

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Note Regarding Forward-Looking Statements

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This annual report on Form 10-K, including all exhibits hereto and any documents that are incorporated by reference as set forth on the face page under “Documents incorporated by reference”, contains “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995 and forward-looking information under Canadian securities laws that are intended to be covered by the safe harbor created by such legislation. All statements, other than statements of historical facts, included in this annual report on Form 10-K, our other filings with the SEC and Canadian securities commissions and in press releases and public statements by our officers or representatives that address activities, events, or developments that we expect or anticipate will or may occur in the future are forward-looking statements and forward-looking information, including, but not limited to, those listed below:

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Operations

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Business and Industry

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Forward-looking statements and forward-looking information have been based upon a number of estimates and assumptions including material estimates and assumptions related to our current business and operating plans, as approved by the Board of Directors; our cash and other funding requirements and timing and sources thereof; results of pre-feasibility and feasibility studies, mineral resource and reserve estimates; initial assessments and exploration activities; advancements of the Company’s required permitting processes; our experience working with regulators; current market conditions and project development plans. The material assumptions used to develop the forward-looking statements and forward-looking information included in this annual report on Form 10-K include: our expectations of metal prices; our forecasts and expected cash flows; our projected capital and operating costs; accuracy of mineral resource estimates and resource modeling and preliminary feasibility and feasibility study results; expectations regarding mining and metallurgical recoveries; timing and reliability of sampling and assay data; anticipated political, economic, and social conditions; expected Australian national, provincial and local government policies, including legal reforms, successful advancement of the Company’s required permitting processes; and ability to successfully raise additional capital. The words “estimate”, “plan”, “anticipate”, “expect”, “intend”, “believe”, “will”, “may” and similar expressions are intended to identify forward-looking statements and forward-looking information. These statements involve known and unknown risks, uncertainties, assumptions and other factors which may cause our actual results, performance or achievements to be materially different from any results, performance or achievements expressed or implied by such forward-looking statements and forward-looking information.

These factors include risks such as:

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Operating Risks

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Financial and Business Risks

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Industry Risks

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For a more detailed discussion of such risks and other important factors that could cause actual results to differ materially from those in such forward-looking statements and forward-looking information, please see “Item 1A. Risk Factors” below in this annual report on Form 10-K. Although we have attempted to identify important factors that could cause actual results to differ materially from those described in forward-looking statements and forward-looking information, there may be other factors that cause results to be materially different than anticipated, estimated or intended. There can be no assurance that these forward-looking statements will prove to be accurate as actual results and future events could differ materially from those anticipated in the statements. Except as required by law, we assume no obligation to publicly update any forward-looking statements and forward-looking information, whether as a result of new information, future events or otherwise.

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ITEM 1A. RISK FACTORS.

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An investment in our securities involves a high degree of risk. The risks described below are not the only ones facing the Company or otherwise associated with an investment in our securities. Additional risks not presently known to us or which we currently consider not material may also adversely affect our business. If any of the following risks actually occur, our business, financial condition and operating results could be materially adversely affected.

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Operating Risks

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We cannot be assured that the Mt Todd FS has, or future studies will, accurately forecast economic results.

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Mt Todd is our principal asset. Our ability to arrange financing to develop Mt Todd and our future profitability depend on the economic and technical feasibility of the Project as established through formal feasibility studies, such as the Mt Todd FS. There can be no assurance that the mining, comminution, gold recovery processes, gold production rates, revenue, and capital and operating costs including taxes and royalties will not vary unfavorably from the estimates and assumptions included in the Mt Todd FS, or any future studies.

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Mt Todd requires substantial capital investment, and we may be unable to raise sufficient capital on favorable terms or at all.

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Ongoing site costs, construction, operation and reclamation of Mt Todd will require significant capital. Our ability to raise sufficient capital and/or secure a development partner or other form of transaction on satisfactory terms, if at all, will depend on several factors, including the Mt Todd FS or any future studies, applicable laws and regulations, acquisition of the requisite permits, macroeconomic conditions, and future gold prices. Uncontrollable factors or other factors such as lower gold prices, unanticipated operating or permitting challenges, inability to secure a development partner or other form of transaction, actual and perceived environmental impacts, or illiquidity in the debt or equity markets, including the cost of capital and other conditions of financing arrangements that impose restrictive covenants and security interests that may affect the Company’s ability to operate as intended and ultimately its ability to continue as a going concern, could impede our ability to finance ongoing and future activities at Mt Todd on acceptable terms, or at all.

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If we decide to construct the mine at Mt Todd, we will assume substantial reclamation obligations resulting in a material financial obligation.

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The Mt Todd site was not reclaimed when the original mine closed. Although we are not currently responsible for the reclamation of these historical disturbances, we will accept full responsibility for them if and when we make a decision to finance and construct the mine and provide notice to the NT Government of our intention to take over and assume the management, operation and rehabilitation of Mt Todd. At such time, we will be required to provide a bond or other surety in a form and amount satisfactory to the NT Government that would cover the estimated cost to reclaim the Mt Todd property. In addition, the regulatory authorities may increase reclamation and bonding requirements from time to time. The satisfaction of these bonding requirements and continuing or future reclamation obligations will require a significant amount of capital. There is no assurance that we will be able to provide an acceptable form of bond or other surety, or provide sufficient working capital to complete any required rehabilitation, if and when such obligations are assumed by the Company.

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There may be delays in the construction of Mt Todd.

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Delays in commencing and completing construction could result from factors such as availability and performance of engineering and construction contractors, suppliers, consultants, and employees; availability of required equipment; delays in receiving any required approvals and authorizations; and availability of capital. Any delay in performance by any one or more of the contractors, suppliers, consultants, employees or other persons on which we depend, or lack of availability of required equipment, or delay or failure to receive required governmental approvals or financing could delay, prevent commencement of, or interrupt construction at Mt Todd. There can be no assurance of whether or when construction at Mt Todd will start, the duration of the construction period, or that the necessary personnel, equipment, supplies, or other resources will be available to the Company if and when construction is started.

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Increased costs could impede our ability to become profitable.

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Capital and operating costs at mining operations are subject to variation due to a number of factors, such as changing ore grade, changing metallurgy, and revisions to mine plans in response to changing commodity prices, additional drilling results and updated geologic interpretations. In addition, costs are and may be affected by the cost of capital, tax and royalty regimes, other royalties, trade tariffs, the global cost of mining and processing equipment, commodity prices, and foreign exchange rates, as well as the costs of fuel, electricity, operating supplies, and appropriately skilled labor. These costs are at times subject to volatile price movements, including increases that could make future development and production at Mt Todd less profitable or uneconomic. This could have a material adverse effect on our business prospects, results of operations, cash flows and financial condition.

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We cannot be assured that we will have an adequate water supply for mining operations at Mt Todd.

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Water at Mt Todd is expected to be provided from a freshwater reservoir that is fed by seasonal rainfall. Insufficient rainfall, or drought-like conditions in the catchment area for the reservoir could limit or extinguish this water supply. Sufficient water resources may not be available, resulting in curtailment or stoppage of operations until the water supply is replenished. This could have a material adverse effect on our business prospects, results of operations, cash flows and financial condition.

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We rely on third parties to fulfill their obligations under agreements.

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Our business strategy includes entering into agreements with third parties (“Third Parties”). Such Third Parties may: (i) have economic or business interests or goals that are inconsistent with or opposed to ours; (ii) have rights in conflict with what we believe to be in our best interests; (iii) take action contrary to our policies or objectives; or (iv) as a result of financial or other reasons, be unable or unwilling to fulfill their obligations under the agreement(s). Any one or a combination of these could result in liabilities for us and/or could adversely affect the value of the related project(s) and, by association, damage our reputation and consequently our ability to acquire or advance other projects and/or attract future Third Parties.

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Our exploration and development interests are subject to evolving environmental regulations.

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Our property and royalty interests are subject to environmental regulations. Environmental legislation is becoming more restrictive, with stricter standards and enforcement, increased fines and penalties for non-compliance, more stringent environmental assessments of proposed projects, and a heightened degree of responsibility for companies and their officers, directors and employees. There is no assurance that future changes in environmental laws and regulations will not adversely affect our interests. Currently, our property and royalty interests are subject to environmental laws and regulations in Australia and the U.S.

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We could be subject to environmental lawsuits.

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Neighboring landowners and other third parties could file claims based on environmental statutes and common law for personal injury and property damage allegedly caused by environmental nuisance, the release of hazardous substances or other waste material into the environment on or around our properties. There can be no assurance that our defense of such claims would be successful. This could have a material adverse effect on our business prospects, results of operation, cash flows, financial condition, and corporate reputation.

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We may have material undisclosed environmental liabilities of which we are not aware.

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We have been engaged in gold exploration since 1983. Since inception, the Company has been involved in numerous exploration projects in many jurisdictions. There may be environmental liabilities associated with disturbances at these projects for which the Company may be identified as a responsible or potentially responsible party, regardless of its level of involvement in creating the related disturbance. We may not be aware of such claims against the Company until regulators provide notice thereof. Consequently, we may have material undisclosed environmental responsibilities which could negatively affect our business prospects, results of operations, cash flows, financial condition, and corporate reputation.

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There may be challenges to our title to mineral properties and rights of use.

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There may be challenges to our title to our mineral properties and rights of use. If there are title defects or challenges to our rights to use such titles as intended with respect to any of our properties, we may be required to compensate other persons or reduce or lose our interest in the affected property. In any such case, the investigation and resolution of title issues could divert Company resources from our core strategies.

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Opposition to Mt Todd could have a material adverse effect.

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There is generally an increasing level of public concern relating to extractive industries. Opposition to extractive industries, or our development and operating plans at Mt Todd specifically, could have adverse effects on our reputation and support from other stakeholders. As a result, we may be unable to secure adequate financing or complete other activities necessary to continue our planned activities. Any resulting delays or an inability to develop and operate Mt Todd as planned could have a material adverse effect on our business prospects, results of operations, cash flows, financial condition and corporate reputation.

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Our exploration and development activities, strategic transactions, or any acquisition activities may not be commercially successful and could fail to lead to gold production or fail to add value.

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Substantial expenditures are required to acquire gold properties, establish mineral reserves through drilling and analysis, develop metallurgical processes to extract metal from the ore and develop the mining and processing facilities and infrastructure at any site chosen for mining. We cannot be assured that any such activities will be commercially successful, lead to gold production, or add value.

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Financial and Business Risks

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We have a history of losses, and we do not expect to generate earnings from operations or pay dividends in the near term, if at all.

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We are a development stage issuer, and we devote our efforts to our development stage property, Mt Todd. We do not currently produce gold and do not currently generate operating earnings from gold production. We finance our business activities principally by issuing equity.

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We have incurred losses in all annual periods since 1998, except for the years ended December 31, 2011, during which we recorded non-cash net gains, December 31, 2015 during which we recorded gains related to research and development refunds, December 31, 2020 during which we monetized certain mineral property interests, and December 31, 2024 when we recognized a gain associated with the grant of a royalty interest in mineral titles. We expect to continue to incur losses. We have no history of paying cash dividends and we do not expect to be able to pay cash dividends or to make any similar distribution of cash or other assets in the foreseeable future, if at all.

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We depend on key personnel, the loss of which could have a material adverse effect on our business.

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We are dependent on the services of key management personnel. The loss of any of these key personnel, if not replaced, could have a material adverse effect on our business and operations. Our future success will depend in part on our ability to identify, attract, engage, train and retain highly qualified personnel. Competition for these individuals is intense, and we may not succeed in identifying, attracting, or retaining qualified personnel. The loss or interruption of the services of any of our executive officers or other key employees, the inability to identify, attract, or retain qualified personnel in the future, the inability to successfully implement executive officer, key employee or other personnel transitions, delays in hiring qualified personnel could make it difficult for us to conduct and manage our business and meet key objectives, which could harm our business, financial condition, and operating results. The loss of services from key personnel or a limitation in their availability could materially and adversely impact our business, prospects, liquidity, financial condition and results of operations.

Further, such a loss could be negatively perceived in the capital markets.

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A substantial or extended decline in gold prices would have a material adverse effect on the value of our assets and on our ability to raise capital and could result in lower than estimated economic returns.

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The value of our assets, our ability to raise capital and our future economic returns are substantially dependent on the price of gold. The gold price is volatile and is affected by numerous factors beyond our control. Factors tending to influence gold prices include:

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A substantial or extended decline in the gold price could:

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Industry consolidation could result in the acquisition of a control position in the Company for less than fair value.

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Consolidation within the industry is a growing trend. As a result of the broad range of market and industry factors including the price of gold, we believe the current market value of the Common Shares does not reflect the fair value of the Company’s assets. These conditions could result in the acquisition of a control position, or attempted acquisition of a control position in the Company at what we believe to be less than fair value. This could result in substantial costs to us and divert management’s attention and resources. A completed acquisition could result in realized losses for shareholders of the Company.

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We expect to need additional financing in connection with the implementation of our business and strategic plans from time to time.

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The exploration, construction, development and acquisition of mineral properties and the ongoing operation of our facilities requires a substantial amount of capital and may depend on our ability to obtain financing. We may accordingly need additional capital in order to take advantage of further opportunities. Our financial condition, general market conditions, volatile gold markets, volatile interest rates, a significant disruption to our business or operations, or other factors may make it difficult to secure financing. Continued volatility in equity markets, specifically including energy and commodity markets, may increase the costs associated with equity financings and may create the potential need for us to offer higher discounts and other value (e.g., warrants).

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We may be unable to raise additional capital on favorable terms, or at all.

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Our exploration and, if warranted, development activities and the construction and start-up of any mining operation require substantial amounts of capital. To develop Mt Todd, acquire attractive gold or other projects, and/or continue our business, we will have to secure a development partner or otherwise source sufficient equity, debt or other forms of capital, raise additional funds from the sale of non-core assets and / or seek additional sources of capital from other external sources. There can be no assurance that we will be successful in securing a development partner or otherwise raising additional capital on acceptable terms, including the cost of such capital and other conditions of financing arrangements that impose restrictive covenants and security interests that may affect the Company’s ability to operate as intended and ultimately its ability to continue as a going concern. If we cannot raise sufficient additional capital, we may be required to substantially reduce or cease operations, any of which may affect our ability to continue as a going concern.

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We face intense competition in the mining industry.

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The mining industry is intensely competitive in all its phases. Some of our competitors are much larger, established companies with greater financial and technical resources than ours. We compete with other companies for attractive mining properties, for capital, for equipment and supplies, for outside services and for qualified managerial and technical employees. Access to financing, equipment, supplies, skilled labor, and other resources may also be affected by competition from non-mining related commercial sectors. If we are unable to raise sufficient capital, we will be unable to execute exploration and development programs, or such programs may be reduced in scope. Competition for equipment and supplies could result in shortages of necessary supplies and/or increased costs. Competition for outside services could result in increased costs, reduced quality of service and/or delays in completing services. If we cannot successfully retain or attract qualified employees, our ability to advance the development of Mt Todd, to attract necessary financing, to meet all our environmental and regulatory responsibilities, or to take opportunities to improve our business, could be negatively affected. This could have a material adverse effect on our business prospects, results of operations, cash flows and financial condition.

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The occurrence of events for which we are not insured may affect our cash flow and overall profitability.

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We maintain insurance policies that mitigate certain risks related to our assets and business activities. This insurance is maintained in amounts that we believe to be reasonable based on the circumstances surrounding each identified risk. However, we may elect to limit or not maintain insurance for certain risks because of the high premiums associated with insuring those risks in relation to potential perils or for various other reasons. In other cases, insurance may not be available for certain risks. We do not insure against political risk. The occurrence of events for which we are not insured adequately, or at all, could result in significant losses that could materially adversely affect our financial condition and our ability to fund our business.

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Currency fluctuations may adversely affect our costs.

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Our material property interests are in Australia. Most costs in Australia are incurred in the local currency. Appreciation of the Australian dollar, if any, against the U.S. dollar effectively increases our cost of doing business. This could have the effect of increasing the amount of capital and operating costs required to continue to maintain, explore and develop Mt Todd, reducing the pace at which it is explored and developed, and/or cause activities to be suspended either temporarily or permanently.

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The Company believes it is possibly a “passive foreign investment company,” which would likely have adverse U.S. federal income tax consequences for U.S. shareholders.

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U.S. shareholders of our Common Shares should be aware that the Company believes it is possible we may be classified as a passive foreign investment company (“PFIC”) up to and including the taxable year ended December 31, 2024, and based on current business plans and financial projections, management believes there is a possibility that the Company could be classified as a PFIC during the current taxable year. If the Company is classified as a PFIC for any year during a U.S. shareholder’s holding period, then such U.S.

shareholder generally will be required to treat any gain realized upon a disposition of Common Shares, or any so-called “excess distribution” received on their Common Shares, as ordinary income, and to pay an interest charge on a portion of such gain or distributions, unless the shareholder makes a timely and effective “qualified electing fund” (“QEF Election”) or a “mark-to-market” election with respect to the Common Shares. A U.S. shareholder who makes a QEF Election generally must report on a current basis its share of the net capital gain and ordinary earnings for any year in which the Company is PFIC, whether or not the Company distributes any amounts to its shareholders. U.S. shareholders should be aware that there can be no assurance that the Company will satisfy record keeping requirements that apply to a QEF Election, or that the Company will supply U.S. shareholders with information that such U.S. shareholders require to report under the QEF Election rules, in event that the Company is a PFIC and a U.S. shareholder wishes to make a QEF Election. Thus, U.S. shareholders may not be able to make a QEF Election with respect to their Common Shares. A U.S. shareholder who makes the mark-to-market election generally must include as ordinary income each year the excess of the fair market value of the Common Shares over the taxpayer’s basis therein. This paragraph is qualified in its entirety by the discussion below in “Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities - Certain U.S. Federal Income Tax Considerations for U.S. Residents.” Each U.S. shareholder should consult his or her own tax advisor regarding the U.S. federal, U.S. state and local, and foreign tax consequences of the PFIC rules and the acquisition, ownership, and disposition of Common Shares.

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Certain directors and officers may serve as directors and officers of other companies in the natural resources sector.

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While there are no known existing or potential conflicts of interest between Vista and any of its directors or officers, certain of the directors and officers do or may serve as directors and officers of other natural resource companies and therefore it is possible that a conflict may arise between their duties as a director or officer out Company and their duties as a director or officer of such other companies. Our directors and officers are aware of the existence of laws governing accountability of directors and officers for corporate opportunity and disclosure of conflicts of interest. Should any director or officer breach the duties imposed upon them by applicable laws, such actions or inactions could have a material adverse effect on our business prospects, results of operations, cash flows, financial position, and corporate reputation.

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Industry Risks

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Calculations of mineral resources and mineral reserves are estimates only and subject to uncertainty.

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Estimation of mineral resources and mineral reserves is an imprecise process and the accuracy of such estimates is a function of the quantity and quality of available data, assumptions used, and judgments made in interpreting geological information and estimating future capital and operating costs. There is significant uncertainty in mineral resources and mineral reserves estimates, and the economic results of mining a mineral deposit may differ materially from the estimates as additional data develops, interpretations change, or actual economic conditions vary from the estimates used.

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Estimated mineral resources and mineral reserves may be materially affected by other factors.

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In addition to uncertainties inherent in estimating mineral resources and mineral reserves, other factors may adversely affect estimated mineral resources and mineral reserves. Such factors may include but are not limited to metallurgical, environmental, permitting, legal, title, taxation, socio-economic, marketing, political, gold prices, and capital and operating costs. Any of these or other adverse factors may reduce or eliminate estimated mineral reserves and mineral resources and could have a material adverse effect on our business prospects, results of operations, cash flows, financial position, and corporate reputation.

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Feasibility studies and other technical studies are estimates only and subject to uncertainty.

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Feasibility studies, such as our Mt Todd FS and our anticipated 2025 FS, and other technical studies are used to estimate the economic viability of an ore deposit, as are preliminary feasibility studies, preliminary economic assessments, and scoping studies. Feasibility studies are the most detailed studies and reflect higher levels of confidence in estimated production rates, and capital and operating costs. Accepted levels of confidence required to meet the standards set out in S-K 1300 are plus or minus 15% for feasibility studies, plus or minus 25-30% for preliminary feasibility studies and plus or minus 35-40% for preliminary economic assessments. Confidence levels for scoping studies may vary, but generally provide less confidence than preliminary economic assessments. These thresholds reflect the levels of confidence that exist at the time the study is completed.

Subsequent changes to metal prices, foreign exchange rates (if applicable), reclamation requirements, operating and capital costs, and other variables may cause actual results of economic viability to differ materially from these estimates. Results of any subsequent Mt Todd feasibility study may be less favorable than the Mt Todd FS.

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Mining companies are increasingly required to consider and provide benefits to the communities, regions, and countries in which they operate, and are subject to extensive environmental, health and safety laws and regulations.

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As a result of public concern about the real or perceived detrimental effects of economic globalization, global climate impacts, and other adverse environmental effects resulting from the operation of extractive industries, businesses in general and the mining industry in particular face increasing public scrutiny of their activities. These businesses are under pressure to demonstrate that as they seek to generate satisfactory returns on investment to shareholders, other stakeholders including employees, governments, Aboriginal peoples, communities surrounding operations, adjacent regions, and the countries in which they operate, such constituencies benefit and will continue to benefit from their commercial activities. The potential consequences of these pressures include reputational damage, delays, suspension of activities, legal claims, increased costs, increased social investment obligations, difficulty in acquiring permits, and increased taxes and royalties payable to governments and communities.

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Mining exploration, development and operating activities are inherently hazardous.

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Mineral exploration and development involve many risks that even a combination of experience, knowledge and careful evaluation may not be able to overcome. Projects and operations in which we have direct or indirect interests will be subject to all the hazards and risks normally incidental to exploration, development, and production of gold and other metals, any of which could result in work stoppages, damage to property, physical harm and possible environmental damage. The nature of these risks is such that liabilities might exceed any liability insurance policy limits. It is also possible that the liabilities and hazards might not be insurable, or, we could elect not to be insured against such liabilities due to high premium costs or other reasons, or our insurance for a particular event or circumstance might be insufficient, in which event we could incur significant costs that could have a material adverse effect on our business prospects, results of operations, cash flows, financial position, and corporate reputation.

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Pending or future legislation and regulations or other standards intended to address climate change could result in increased operating costs.

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Gold production is energy intensive, resulting in a significant carbon footprint. A number of governments, governmental bodies, the World Bank and/or other entities maintain, have introduced, or are contemplating laws, regulations and standards in response to potential impacts of climate change. This type of legislation and possible future legislation and increased regulation regarding climate change could impose significant costs related to increased energy requirements, capital equipment, environmental monitoring and reporting and other costs to comply with such regulations.

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Pending or future initiatives involving taxation could result in increased taxes and operating costs.

There is growing attention from the media and the public to perceived international tax avoidance techniques which could result in escalating rates of poverty, inequality and unemployment in host countries. Initiatives like the Base Erosion and Profit Shifting project led by the Organization for Economic Cooperation and Development and specific country legislative measures, including Australia, aim to reform the system of international taxation to minimize international tax avoidance techniques. This initiative and possible future initiatives could result in increased tax expenses and related compliance costs for Mt Todd or other future mining operations.

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Securities Risks

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Our share price may be volatile and your investment in our Common Shares could suffer a decline in value.

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Broad market and industry factors may adversely affect the price of our Common Shares, regardless of our actual performance. Factors that could cause fluctuation in the price of our Common Shares may include, among other things:

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In the past, securities class action litigation has often been instituted against companies following periods of volatility in their stock price. This type of litigation or other securities claims could result in substantial costs to us and divert our management’s attention and resources.

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Potential share dilution.

Our constating documents allow us to issue an unlimited number of Common Shares for such consideration and on such terms and conditions as shall be established by the Board of Directors, in many cases without the approval of shareholders. We may issue Common Shares in offerings from treasury (including through the sale of securities convertible into or exchangeable for Common Shares) and on the exercise of stock options or other securities exercisable for Common Shares. We cannot predict the size of future issuances of Common Shares or the effect that future issuances and sales of Common Shares will have on the market price of the Common Shares. Issuances of a substantial number of additional Common Shares, or the perception that such issuances could occur, may adversely affect prevailing market prices for the Common Shares. With any additional issuance of Common Shares, investors will suffer dilution to their shareholder interest and voting power.

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Holders of our Common Shares may not receive dividends.

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We have not historically declared cash dividends on our Common Shares. Holders of our Common Shares are entitled to receive only such dividends as our Board of Directors may declare out of funds legally available for such payments. Our ability to pay dividends will be subject to our future earnings, capital requirements and financial condition, as well as our compliance with covenants related to any future indebtedness and would only be declared in the discretion of our Board of Directors.

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General Risks

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We may experience cybersecurity breaches which may result in information theft, data corruption, operational disruption, disclosure of confidential business information, misdirected wire transfers, reputational harm, or financial loss.

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Regular access to and security of information technology systems are critical to our operations. To our knowledge, the Company has not experienced any material losses relating to disruptions to its information technology systems. We have implemented policies, controls, and practices to manage and safeguard our Company and stakeholders from internal and external cybersecurity threats and to comply with changing legal requirements and industry practice.

Cyber risks cannot be fully mitigated, and these threats are continuing to evolve. Therefore, we cannot assure that its information technology systems are fully protected from cybercrime or that the systems will not be inadvertently compromised, or without failures or defects. Potential disruptions to our information technology systems, including, without limitation, security breaches, power loss, theft, computer viruses, cyber-attacks, natural disasters, and noncompliance by third party service providers and inadequate levels of cybersecurity expertise and safeguards of third party information technology service providers, may adversely affect our operations as well as present significant costs and risks including, without limitation, loss or disclosure of confidential, proprietary, personal or sensitive information and third party data, material adverse effect on its financial performance, compliance with its contractual obligations, compliance with applicable laws, damaged reputation, remediation costs, potential litigation, regulatory enforcement proceedings and heightened regulatory scrutiny.

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We are subject to anti-bribery and anti-corruption laws.

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Our operations are governed by, and involve interactions with, many levels of government in several countries. We are required to comply with anti-corruption and anti-bribery laws in the countries in which we conduct our business. In recent years, there has been a general increase in both the frequency of enforcement and the severity of penalties under such laws, resulting in greater scrutiny and punishment of companies convicted of violating anti-corruption and anti-bribery laws. Furthermore, a company may be found liable for violations committed by not only its employees, but also by its contractors and third-party agents. Although we have adopted internal control policies to mitigate such risks, there can be no assurance that our internal control policies and procedures will always protect us from recklessness, fraudulent behavior, dishonesty or other inappropriate acts committed by our affiliates, employees or agents and such measures may not always be effective in ensuring that we, our employees, contractors or agents will comply strictly with such laws. If we find ourselves subject to an enforcement action or are found to be in violation of such laws, this could lead to civil and criminal fines and penalties, investigation and litigation, and loss of operating licenses or permits, resulting in a material adverse effect on our reputation and results of operations.

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Our business is subject to evolving corporate governance and public disclosure regulations that have increased both our compliance costs and the risk of noncompliance.

We are subject to changing rules and regulations promulgated by numerous governmental and self-regulated organizations, including but not limited to the British Columbia Securities Commission, the SEC, the TSX, the NYSE American, and the Financial Accounting Standards Board. These rules and regulations continue to evolve in scope and complexity and many new requirements have been created in response to laws enacted by the United States Congress, making compliance increasingly more difficult and uncertain, which could have an adverse effect on our reputation and our stock price.

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We are or may become subject to data privacy laws, regulations, litigation and directives relating to our processing of personal information.

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The jurisdictions in which we operate (including the United States) have laws governing how we must respond to a cyber incident that results in the unauthorized access, disclosure, or loss of personal information. Additionally, new laws and regulations governing data privacy and unauthorized disclosure of personal information and imposing certain cybersecurity-related requirements may provide for a private right of action and imposition of significant fines, pose increasingly complex compliance challenges. Some or all of such legislation will elevate our compliance costs over time. Our business involves collection, use, and other processing of personal information and personally identifiable information of our employees, investors, contractors, suppliers, and customer contacts. As legislation continues to develop and cyber incidents continue to evolve, we will likely be required to expend significant resources to continue to modify or enhance our protective measures to comply with such legislation and to detect, investigate and remediate vulnerabilities to cyber incidents that relate to data privacy. Any failure by us, or a company we acquire, to comply with such laws and regulations could result in reputational harm, loss of goodwill, penalties, liabilities, remediation costs, or mandated changes in our business practices, each of which has the potential to materially impact our financial condition.

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ITEM 1B. UNRESOLVED STAFF COMMENTS.

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Not applicable.

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ITEM 1C. CYBERSECURITY.

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Description of Processes for Assessing, Identifying and Managing Cybersecurity Risks

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Vista’s system of internal controls includes consideration of cybersecurity risks. The Company uses technology and control procedures designed to mitigate cybersecurity risks, with our management team working to monitor, identify, assess, and respond to potential cybersecurity incidents that may threaten the Company. The system of controls also focuses on security awareness and training for employees and contractors with access to Company facilities or systems. Company management periodically reviews system and organization control reports (SOC 1, Type 2) for key outsourced information systems to ensure that third-party data processing is subject to appropriate controls and security measures. Cybersecurity risks for Vista include the potential for financial loss, loss of data, and business interruption. Vista maintains technology and non-technology-based system controls, a data backup program, and disaster recovery testing to mitigate these risks.

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Our cybersecurity controls also follow defense in depth principles, which aim to implement various layered access control, detection, prevention, and response measures. We periodically engage with third parties to assess our vulnerabilities and help us mitigate cybersecurity-related risks.

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Management’s Role in Assessing and Managing Cybersecurity Risks

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The Company’s chief executive officer (“CEO”) and chief financial officer (“CFO”) have primary responsibility for cybersecurity risk management and the implementation of processes for identifying, assessing, and managing material risks from cybersecurity threats. Officers of the Company and its Australian subsidiary review, at least quarterly, developments relevant to the Company’s cybersecurity control environment. This group of officers has experience managing public companies and overseeing internal controls associated with cybersecurity. Additional support for information technology (“IT”) general controls and specific cybersecurity matters is provided to the Company through third-party IT specialists. In accordance with the Company’s policies, including its Disclosure Policy and Code of Business Conduct and Ethics, cybersecurity incidents are to be immediately reported to the Vista management team for resolution. Information technology general controls, including controls to mitigate cybersecurity risks, are considered by management during their assessment of the Company’s design and effectiveness of internal controls over financial reporting. Findings from these control procedures are considered by management and, as deemed appropriate to reduce cybersecurity risks to an appropriately low level, are implemented. This may include modification of internal control procedures, adoption of technology solutions, and testing of specific elements of the system of controls.

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Board of Directors’ Oversight of Risks from Cybersecurity

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Management, under supervision of the CEO and CFO, has developed a system of internal controls that identifies risks to the Company, designed controls intended to reduce risks to an appropriately low level, implemented control procedures, and subsequently tested such control procedures. Management presents an enterprise risk management assessment to the Audit Committee on a quarterly basis and provides the Audit Committee with frequent updates of specific financial statement risks. Risks associated with cybersecurity are included in these risk assessments, subjected to testing of key controls, and reflected in management’s reports to the Audit Committee. The Board of Directors receives periodic briefings on selected risk matters, and is invited to participate in each Audit Committee meeting and, as such, is provided with the same information presented to the Audit Committee.

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No Previous Material Cybersecurity Threats

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We are not aware of any previous cybersecurity threats that have materially affected or are reasonably likely to materially affect the Company. Despite the security and risk management measures that we have implemented and any additional measures we may implement or adopt in the future, our facilities and systems, and those of our third-party service providers, have been and are vulnerable to security breaches, computer viruses, lost or misplaced data, programming errors, scams, burglary, human errors, acts of vandalism, misdirected wire transfers, or other malicious or criminal activities. A successful attack on our information or operational technology systems could have material consequences to the Company.

While we devote resources to our security measures to protect our systems and information, these measures cannot provide absolute security. See “Item 1A. Risk Factors” for additional information about the risks to our business associated with a breach or compromise to our IT systems.

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ITEM 2. PROPERTIES.

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References to USD or $ refer to United States currency and AUD or A$ refer to Australian currency, all in thousands, unless specified otherwise.

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Qualified Persons

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The scientific and technical disclosures about Mt Todd in this annual report on Form 10-K have been reviewed and approved by Maria Vallejo Garcia, Vista’s Director of Projects and Technical Services, and a designated qualified person (or “QP”) as defined by S-K 1300 and NI 43-101. For a description of the key assumptions, parameters and methods used to estimate mineral resources and mineral reserves included in this Form 10-K, as well as data verification procedures and a general discussion of the extent to which the estimates may be affected by any known environmental, permitting, legal, title, taxation, sociopolitical, marketing or other relevant factors, please review the technical report summary of the Mt Todd FS (as described below) which is included as an exhibit to this Form 10-K.

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Mt Todd Gold Project, Northern Territory, Australia

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Summary Disclosure

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The Company has one material mining property, the Mt Todd gold project located in the Northern Territory of Australia. We hold Mt Todd through our wholly owned subsidiary Vista Gold Australia Pty. Ltd. (“Vista Gold Australia”).

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Technical Report Summary

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The Mt Todd FS is the technical report summary, prepared pursuant to S-K 1300, is attached as an exhibit to this Annual Report on Form 10-K and is entitled “S-K 1300 Technical Report Summary - Mt Todd Gold Project - 50,000 tpd Feasibility Study – Northern Territory, Australia” with an effective date of March 12, 2024 and an issue date of March 14, 2024.

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A companion feasibility study for Canadian purposes, pursuant to NI 43-101, was filed on SEDAR+ on April 16, 2024 and is entitled “NI 43-101 Technical Report – Mt Todd Gold Project – 50,000 tpd Feasibility Study – Northern Territory, Australia”, with an effective date of March 12, 2024. The companion report is referenced herein for informational purposes only and is not incorporated herein by reference.

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The technical data and economic conclusions of these reports are materially identical, with differences in the formatting of the reports and details of certain assumptions resulting only from the respective disclosure requirements of S-K 1300 and NI 43-101. The reports were prepared by Maurie Marks, P.Eng.; Rex Clair Bryan, Ph.D., SME RM; Thomas L. Dyer, P.E., SME RM; Amy L. Hudson, Ph.D., CPG, SME RM; April Hussey, P.E.; Chris Johns, M.Sc., P.Eng.; Max Johnson, P.E.; Deepak Malhotra, Ph.D., SME RM; Zvonimir Ponos, BE, MIEAust, CPeng, NER; Vicki J. Scharnhorst, P.E., LEED AP; and Keith Thompson, CPG, member AIPG, each of whom is a qualified person under S-K 1300 and NI 43-101.

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The following description of Mt Todd has been derived, in part, from the Mt Todd FS. Readers should consult the Mt Todd FS to obtain further particulars regarding Mt Todd. The Mt Todd FS is available for review at www.sec.gov and under our profile at www.sedarplus.com. The Mt Todd FS is not incorporated by reference into this annual report on Form 10-K.

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Certain capitalized terms in this section not otherwise defined herein have the meanings ascribed to them in the Mt Todd FS.

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Project Location and Access

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Mt Todd is located 56 kilometers by road northwest of Katherine, NT, Australia, and approximately 290 kilometers by road southeast of Darwin, NT. Access is by existing paved public roads and approximately four kilometers of paved private road. We control and maintain the private paved road.

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The area has a sub-tropical climate with a distinct wet season and dry season. The area receives most of its rainfall between the months of January and March. Temperatures are moderate, allowing for year-round mining operations. The topography is relatively flat. The tenements encompass a variety of habitats forming part of the northern Savannah woodland region, which is characterized by eucalypt woodland with tropical grass understories. Surface elevations are approximately 130 to 160 meters above sea level in the area of the previous and planned mine plant site and waste rock dumps.

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Project Stage

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The Project is a development stage property with proven and probable mineral reserves.

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Feasibility Study Results

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The Mt Todd FS evaluates a 50,000 tpd project that optimizes payable gold, capital efficiency, operating costs and net present value (“NPV”).

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The Mt Todd FS highlights include:

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Key statistics of the Mt Todd FS are presented in the table below:

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Note: Table economics presented using $1,800/oz gold and an AUD:USD exchange rate of 0.69.

(1) Years 1-7 start after the 6-month commissioning and ramp up period.

(2) Life of mine is from start of commissioning and ramp up through the final closure.

(3) Post-sorting grinding circuit feed grade.

(4) Cash Costs per ounce is a non-U.S. GAAP financial measure; see Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations – Non-U.S. GAAP Financial Measures for additional disclosure.

(5) All-in Sustaining Costs (“AISC”) per ounce is a non-U.S. GAAP financial measure; see Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations – Non-U.S. GAAP Financial Measures for additional disclosure.

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The following chart presents the Mt Todd FS annual after-tax cash flows using $1,800/oz gold and an AUD:USD exchange rate of 0.69:

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The following table provides additional details of the Mt Todd FS economics at variable gold price per ounce and foreign exchange assumptions:

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† Reflects the assumptions used for the economic analysis in the Mt Todd FS.

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Key capital expenditures for the Mt Todd FS initial and sustaining capital requirements are:

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Note: Amounts may not add to total due to rounding. Asset sale and salvage value assumptions include end of life re-sale values for mining and processing equipment; and recycle value for steel and pipe from the process plant and other facilities.

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The Mt Todd FS contemplates an owner-operated mining fleet with an initial capital cost of $100 million and sustaining capital of $620 million, inclusive of contingency. The study assumes the mining equipment will be sold when retired from operations, at an estimated salvage value of $24 million. Fleet operators, along with other employees, are expected to be community based, providing benefits by lower camp-related capital and operating costs. Mining equipment would be maintained through a full maintenance and repair contract with the manufacturer’s authorized dealer. Overall, this approach is expected to produce lower operating costs compared to contract mining.

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The Mt Todd FS utilizes the efficiency of ore sorting across a broad range of head grades, the natural concentration of gold in the screen undersize material prior to sorting, the efficiency of fine grinding and the resulting improved gold recoveries at a final grind size of P80 40 µm, and the selection of FLSmidth’s VXP mill (“VXP Mills”) as the preferred fine grinding mill.

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The Mt Todd FS incorporates purchasing electrical power from a third-party. The power plant will be third-party  owned and operated by a power generating company, and will provide power to the Project on a dedicated contract.

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The following table presents a breakdown of Mt Todd FS operating costs.

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Note: Table may not add to total due to rounding

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In November 2020, we modified our agreement with the Jawoyn Association. The modified agreement provides the Jawoyn Association with a gross proceeds royalty (“GPR”) ranging between 0.125% and 2.0%, depending on prevailing gold prices and foreign exchange rates, instead of its previous right to become a 10% participating joint venture partner in Mt Todd. The modified agreement did not affect the previously agreed 1.0% GPR. The combined royalty (“Jawoyn Royalty”) range is now from 1.125% to 3.0% and is reflected in the table above.

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In December 2023, Vista entered into a royalty agreement (the “Royalty Agreement”) with Wheaton Precious Metals (Cayman) Co., an affiliate of Wheaton Precious Metals Corp., in relation to Mt Todd. Pursuant to the terms of the Royalty Agreement, Vista granted Wheaton a royalty in the amount of 1% of gross revenue from the sale or disposition of minerals from the Project, subject to adjustments in certain circumstances (the “Wheaton Royalty” and together with the Jawoyn Royalty, the “Royalties”).

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The life of mine production schedule contemplates 280.4 million tonnes of ore containing an estimated 6.98 million ounces of gold at an average grade of 0.77 g Au/t to be processed over a 16-year life of mine. Total recovered gold is expected to be 6.31 million ounces. Average annual gold production over the life of mine is expected to be 395,000 ounces, which includes averaging 479,000 ounces during the first seven years of commercial operations. Commercial operations are anticipated to begin after two years of construction and a six-month commissioning and ramp-up period.

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The following table summarizes the production schedule. The shaded portion of the table presents the impact of ore sorting. Ore sorting reduces the tonnage processed through the grinding, leaching and tailings handling areas by approximately 10% with a contained gold loss of approximately 1.3%. This results in an increase in the post-sorting processed grade of approximately 8.0%. The effects of reducing post-sorting tonnes and increasing grade results in capital and operating cost savings in the grinding, leaching and tailings handling areas.

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Note: Amounts may not add due to rounding.

† Six-month startup and commissioning period ahead of full production ‡ Total milled ore includes material from the existing heap leach pad that is processed in years 16 and 17.

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Mineral Resources and Mineral Reserves Estimates

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The mineral resources and mineral reserves reported in this section were prepared in accordance with both S-K 1300 standards and CIM Definition Standards. The table below presents the estimated mineral resources for the Project.

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Mt Todd Gold Project – Summary of Gold Mineral Resource (Exclusive of Gold Mineral Reserves)

Based on US$1,300/oz Gold

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Notes:

There was no change in mineral resource estimates as of December 31, 2024 compared to December 31, 2023 as the same material assumptions and criteria were determined to continue to apply to the mineral resource estimates and there was no conversion of mineral resources into mineral reserves in the fiscal year ending December 31, 2024.

The table below presents the estimated mineral reserves for the Project.

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Mt Todd Gold Project – Summary of Gold Mineral Reserves based on 50,000 tpd, 0.35 g Au/t cut-off and $1,500 per Ounce Pit Design

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Economic analysis conducted only on proven and probable mineral reserves.

Notes:

Cautionary note to investors: Proven and probable mineral reserves are estimated in accordance with S-K 1300 and CIM Definition Standards. A number of risk factors may adversely affect estimated mineral reserves and mineral resources, any of which may result in a reduction or elimination of reported mineral reserves and mineral resources. See “Item 1A. Risk Factors.”

The mine plan in the Mt Todd FS includes both proven and probable mineral reserves and results in estimated total recovered gold of 6.31 million ounces.

There was no change in mineral reserve estimates as of December 31, 2024 compared to December 31, 2023 as the same material assumptions and criteria were determined to continue to apply to the mineral reserve estimates and there was no depletion of mineral reserves in the fiscal year ending December 31, 2024 as Mt. Todd is in the development stage.

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The tables below show the resource classification criteria and variogram parameters for the Batman resource model.

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Property Holdings

In 2006, through an agreement with Pegasus Gold Australia Pty. Ltd. (“Pegasus”), the NT Government, and the Jawoyn Association, we acquired the concession rights and access to Mt Todd. Also in 2006, through an agreement with the NT Government, we established the rights and obligations of Vista and the NT Government with respect to Mt Todd site care and maintenance and potential future development. The latter agreement was extended in 2017 through the end of 2023 and further extended in 2023 through December 31, 2029 with the option for an additional three-year extension.

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Total land holdings controlled by Vista Gold Australia are approximately 1,637 Km2. A map showing the location of the mineral licenses (“MLs”) and exploration licenses (“ELs”) is set out above under the section heading “Project Location and Access.” A table listing the MLs and ELs and the required annual rents and holding fees is set out below. All of the estimated mineral reserves and resources are located within the boundaries of the MLs and substantially all of the estimated mineral reserves and resources at Mt Todd are located in the Batman deposit.

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The Batman and Quigleys deposits are located within the MLs. Should a deposit be discovered on the ELs, that portion of the related EL would have to be converted to an ML before mining operations could start.

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Mt Todd Land Holdings of Vista Gold Australia

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The surface land in the area of the contiguous MLs and ELs (excluding EL 32004) is freehold land owned by the Jawoyn Association. Because the Jawoyn Association have title to the land, such land is not part of the lands classified by the government as indigenous lands, and as a result such lands are not subject to an Indigenous land use agreement. Vista has a private agreement with the Jawoyn Association for access to the land.

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Annually, we are required to submit an MMP (now called a Deemed Mining License) for care and maintenance that details work to be done on the property. We have received approval for all work done on the Project to date and obtained approval for the EIS. We received our operational MMP in June 2021, which was changed to a Deemed Mining License in July, 2024. This authorization is the operating permit that sets out how the mine operating strategy will be implemented throughout the life of mine in compliance with the EIS and EPBC requirements. The remaining permitting processes are relatively straight-forward and are not expected to impede, to a material extent, our exploration and future development plans. Any future mining will require sufficient surety bonding to fund mine closure.

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Infrastructure

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Because Mt Todd was an operating mine, infrastructure exists that reduces initial capital expenditure and significantly reduces capital risk related to infrastructure construction, which has been a major source of capital cost overruns in the mining industry over the last decade. Existing mining infrastructure items include:

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In addition, we expect reduced earthworks costs due to the process plant location being in the same general area as the previous process plant, which was cleared and graded at the time of original construction.

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Other benefits of Mt Todd’s location in the NT include:

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The area has both historical and current mining activity and therefore a portion of the skilled workforce should be able to be sourced locally. In addition, Katherine offers the necessary support functions that are typically found in a medium-sized city with regard to supplies, accommodations, communications, etc.

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Planned infrastructure for the site includes the following:

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Geological Setting, Mineralization, and Deposit Type

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Mt Todd is situated within the southeastern portion of the Early Proterozoic Pine Creek Geosyncline. Meta-sediments, granitites, basic intrusives, acidic and intermediate volcanic rocks occur within this geological province. Within the Mt Todd region, the oldest outcropping rocks are assigned to the Burrell Creek Formation. These rocks consist primarily of interbedded greywackes, siltstones, and shales of turbidite affinity, which are interspersed with minor volcanics.

The Burrell Creek Formation is overlain by interbedded greywackes, mudstones, tuffs, minor conglomerates, mafic to intermediate volcanics and banded ironstone of the Tollis Formation. The Burrell Creek Formation and Tollis Formation comprise the Finniss River Group. The Finniss River Group strata have been folded about northerly trending F1 fold axes. The folds are closed to open style and have moderate westerly dipping axial planes with some sections being overturned. A later north-south compression event resulted in east-west trending open style upright D2 folds. The Finniss River Group has been regionally metamorphosed to lower green schist facies. Late and Post Orogenic granite intrusions of the Cullen Batholith occurred from 1,789 Ma to 1,730 Ma and brought about local contact metamorphism to hornblende hornfels facies.

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The Batman pit geology consists of a sequence of hornfelsed interbedded greywackes and shales with minor thin beds of felsic tuff. Bedding consistently strikes at 325 degrees, dipping 40 degrees to 60 degrees to the southwest. Northerly trending sheeted quartz sulfide veins and joints striking at 0 degrees to 20 degrees and dipping 60 degrees to the east are the major controls for mineralization in the Batman pit. The veins are 1 to 100 millimeters in thickness with an average thickness of around 8 to 10 millimeters and occur in sheets with up to 20 veins per horizontal meter. These sheeted veins are the main source of gold mineralization in the Batman pit. In general, the Batman pit extends 1,600 meters in length by 1,100 meters in width and has been drill tested to a depth of 800 meters down-dip. The deposit is open along strike and at depth.

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The mineralization within the Batman pit is directly related to the intensity of the north-south trending quartz sulfide veining. The lithological units impact the orientation and intensity of mineralization. Sulfide minerals associated with the gold mineralization are pyrite, pyrrhotite and lesser amounts of chalcopyrite, bismuthinite and arsenopyrite. Galena and sphalerite are also present, but appear to be post-gold mineralization, and are related to calcite veining in the bedding plains and the east-west trending faults and joints. Two main styles of mineralization have been identified in the Batman pit. These are the north-south trending vein mineralization and bedding parallel mineralization. 

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Gold mineralization in the Batman deposit occurs in sheeted veins within silicified greywackes/shales/siltstones. The Batman deposit strikes north-northeast and dips steeply to the east. Higher grade zones of the deposit plunge to the south. The core zone is approximately 200-250 meters wide and 1.5 kilometers long, with several hanging wall structures providing additional width to the orebody. Mineralization is open at depth as well as along strike, although the intensity of mineralization weakens to the north and south along strike.

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Historical Operations

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The Batman gold prospect is located in the Pine Creek Geosyncline that was worked from early in the 20th century. Gold and tin were discovered in the Mt Todd area in 1889. Most deposits were worked in the period from 1902 to 1914. A total of 7.80 tonnes of tin concentrate was obtained from cassiterite-bearing quartz-kaolin lodes at the Morris and Shamrock mines. The Jones Brothers reef was the most extensively mined gold-bearing quartz vein, with a recorded production of 28.45 kg Au. This reef consists of a steeply dipping ferruginous quartz lode within tightly folded greywackes.

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The Yinberrie Wolfram field, discovered in 1913, is located 5 kilometers west of Mt Todd. Tungsten, molybdenum and bismuth mineralization was discovered in greisenized aplite dykes and quartz veins in a small stock of the Cullen Batholith. Recorded production from numerous shallow shafts is 163 tonnes of tungsten, 130 kg of molybdenite and a small quantity of bismuth.

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Exploration for uranium began in the 1950s. Small uranium prospects were discovered in sheared or greisenized portions of the Cullen Batholith in the vicinity of the Edith River.

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Australian Ores and Minerals Limited (“AOM”) in a joint venture with Wandaroo Mining Corporation and Esso Standard Oil took out a number of mining leases in the Mt Todd area during 1975. Initial exploration consisted of stream sediment sampling, rock chip sampling, and geological reconnaissance for a variety of commodities. A number of geochemical anomalies were found primarily in the vicinity of old workings. Follow-up work concentrated on alluvial tin and, later, auriferous reefs. Backhoe trenching, costeaning, and ground follow-up were the favored mode of exploration. Two diamond drillholes were drilled at Quigleys.

Despite determining that the gold potential of the reefs in the area was promising, AOM ceased work around Mt Todd.

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The Arafura Mining Corporation, CRA Exploration, and Marriaz Pty Ltd all explored the Mt Todd area at different times between 1975 and 1983. In late 1981, CRA Exploration conducted grid surveys, geological mapping and a 14 diamond drillhole program, with an aggregate meterage of 676.5 meters, to test the gold content of Quigleys Reef over a strike length of 800 meters. Following this program CRA Exploration did not proceed with further exploration.

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During late 1986, Pacific Gold Mines NL (“Pacific”) undertook exploration in the area which resulted in small-scale open cut mining on the Quigleys and Golf reefs, and limited test mining at the Alpha, Bravo, Charlie and Delta pits. Ore was transported to a carbon in pulp (“CIP”) plant owned by Pacific at Moline. This continued until December 1987. Pacific ceased operations in the area in February 1988 having produced approximately 86,000 tonnes grading 4 g Au/t (historical reported production, not S-K 1300 or NI 43-101 compliant). Subsequent negotiations between the joint venture partners Shell Company of Australia (“Billiton”), Zapopan NL (“Zapopan”) and Pacific resulted in the acquisition of this ground and incorporation into the joint venture.

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Billiton, who was the managing partner in an exploration program in the joint venture with Zapopan, discovered the Mt Todd mineralization, or more specifically the Batman deposit, in May 1988. In 1992, Pegasus acquired a shareholding in Zapopan, following which Zapopan acquired Billiton’s interest. Pegasus progressively increased their shareholding until they acquired full ownership of Zapopan in July 1995.

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Historical preliminary studies (not S-K 1300 or NI 43-101 compliant) for the Phase I project, a heap leach operation which focused predominately on the oxide portion of the deposit, commenced during 1992 culminating in an engineering, procurement, construction management (“EPCM”) award to Minproc Engineers Pty. Ltd. in November of that year. The Phase I project was predicated upon a 4 million tpa heap leach plant, which came on stream in late 1993. The treatment rate was subsequently expanded to a rate of 6 million tpa in late 1994.

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Based on our review of the historical project files, we believe that approximately 21.4 million tonnes grading 1.05 grams gold per tonne and containing 723,795 ounces of gold were extracted between 1993 and the termination of mining in 2000. Processing was by a combination of heap leach production from oxide ore and cyanidation of sulfide ore. The remaining mineralization consists of sulfide mineralization lying below and along strike of the existing open pit, and in hanging wall structures parallel to the main zone in the existing open pit.

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Historical heap leach production is shown in the table below:

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