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Bunker Hill Announces Amendments to Outstanding RSUs

Share Capital & Compensation

Bunker Hill Announces Amendments to Outstanding RSUs

KELLOGG, Idaho and VANCOUVER, British Columbia, May 1, 2025 -- Bunker Hill Mining Corp . (“Bunker Hill ” or the

“Company”) (TSX-V: BNKR |OTCQB: BHLL) announces that, further to its news release dated March 13, 2025, the Company

has further amended the vesting schedule from May 1, 2025 to June 1, 2025 for an aggregate of 3,891,096 restricted stock units

of the Company (as amended, the “RSUs”) previously granted to certain directors and officers under the Company’s amended

and restated restricted stock unit incentive plan (the “ RSU Plan”) on November 2, 2022 , July 4, 2023 and March 13, 2024 ,

respectively.

In addition, the Company wishes to clarify certain disclosure in its annual financial statements for the year ended December 31,

2022 (the “2022 Financial Statements”) by confirming that the RSUs granted on November 17, 2022, as indicated in the 2022

Financial Statements, were granted on November 2, 2022 (the “November 2022 RSUs”), and instead of vesting on November

17, 2023, 2024 and 2025, respectively, the first two increments of the November 2022 RSUs vested on March 31, 2023 and

2024, respectively, with the final increment now vesting on June 1, 2025.

The amendments to the RSUs are subject to the approval of the TSX Venture Exchange (the “TSX-V”). Each vested RSU entitles

the holder to receive one share of common stock of the Company. A copy of the RSU Plan is available under the Company ’s

profile on SEDAR+.

ABOUT BUNKER HILL MINING CORP.

Bunker Hill Mining Corp. is an American mineral exploration and development company focused on revitalizing our historic

mining asset: the renowned zinc, lead, and silver deposit in northern Idaho’s prolific Coeur d’Alene mining district. This strategic

initiative aims to breathe new life into a once -productive mine, leveraging modern exploration techniques and sustainable

development practices to unlock the potential of this mineral-rich region. Bunker Hill Mining Corp. aims to maximize shareholder

value while responsibly harnessing the mineral wealth in the Silver Valley mining district by concentrating our efforts on th is

single, high-potential asset. Information about the Company is available on its website, www.bunkerhillmining.com, or within the

SEDAR+ and EDGAR databases.

On behalf of Bunker Hill

Sam Ash

President, President, Chief Executive Officer and Director

For additional information, please contact:

Brenda Dayton

Vice President, Investor Relations

T: 604.417.7952

E: [email protected]

Cautionary Statements

Neither the TSX-V nor its Regulation Services Provider (as that term is defined in the policies of the TSX-V) accepts

responsibility for the adequacy or accuracy of this release.

Certain statements in this news release are forward -looking and involve a number of risks and uncertainties. Such forward -

looking statements are within the meaning of that term in Section 27A of the U.S. Securities Act of 1933, as amended, and

Section 21E of the U.S. Securities Exchange Act of 1934, as amended, as well as within the mean ing of the phrase ‘forward-

looking information’ in the Canadian Securities Administrators’ National Instrument 51-102 – Continuous Disclosure Obligations

(collectively, “forward-looking statements”). Forward-looking statements are not comprised of historical facts. Forward-looking

statements include estimates and statements that describe the Company’s future plans, objectives or goals, including words to

the effect that the Company or management expects a stated condition or result to occur. Forward -looking statements may be

identified by such terms as “believes”, “anticipates”, “expects”, “estimates”, “may”, “could”, “would”, “will”, “plan” or variations of

such words and phrases.

Forward-looking statements in this news release include, but are not limited to: statements regarding the Company’s objectives,

goals or future plans, including the restart and development of the Bunker Hill Mine ; the achievement of future short -term,

medium-term and long-term operational strategies; and the Company receiving the TSX -V’s approval for the amendments to

the RSUs.

Factors that could cause actual results to differ materially from such forward -looking statements include, but are not limited to,

those risks and uncertainties identified in public filings made by Bunker Hill with the U.S. Securities and Exchange Commission

(the “SEC”) and with applicable Canadian securities regulatory authorities, and the following: the Company’s inability to raise

additional capital for project activities, including through equity financings, concentrate offtake financings or otherwise; the

fluctuating price of commodities; capital market conditions; restrictions on labor and its effects on international travel and supply

chains; failure to identify mineral resources; failure to convert estimated mineral resources to reserves; the preliminary nature of

metallurgical test results; the Company ’s ability to restart and develop the Bunker Hill Mine and the risks of not basing a

production decision on a feasibility study of mineral reserves demonstrating economic and technical viability, resulting in

increased uncertainty due to multiple technical and economic risks of failure which are associated with this production decision

including, among others, areas that are analyzed in more detail in a feasibility study, such as applying economic analysis to

resources and reserves, more detailed metallurgy and a number of specialized studies in areas such as mining and recovery

methods, market analysis, and environmental and community impacts and, as a result, there may be an increased uncertainty

of achieving any particular level of recovery of minerals or the cost of such recovery, including increased risks associated with

developing a commercially mineable deposit, with no guarantee that production will begin as anticipated or at all or that

anticipated production costs will be achieved; failure to commence production would have a material adverse impact on the

Company’s ability to generate revenue and cash flow to fund operations; failure to achieve the anticipated production costs

would have a material adverse impact on the Company’s cash flow and future profitability; delays in obtaining or failures to obtain

required governmental, environmental or other project approvals; political risks; changes in equity markets; uncertainties relating

to the availability and costs of financing needed in the future; the inability of the Company to budget and manage its liquidity in

light of the failure to obtain additional financing, including the ability of the Company to complete the payments pursuant t o the

terms of the agreement to acquire the Bunker Hill Mine complex; inflation; changes in exchange rates; fluctuations in commodity

prices; delays in the development of projects; and capital, operating and reclamation costs varying significantly from estima tes

and the other risks involved in the mineral exploration and development industry. Although the Company believes that the

assumptions and factors used in preparing the forward-looking statements in this news release are reasonable, undue reliance

should not be placed on such statements or information, which only applies as of the date of this news release, and no assurance

can be given that such events will occur in the disclosed time frames or at all, including as to whether or when the Company will

achieve its project finance initiatives, or as to the actual size or terms of those financing initiatives. The Company disclaims any

intention or obligation to update or revise any forward-looking information, whether as a result of new information, future events

or otherwise, other than as required by law. No stock exchange, securities commission or other regulatory authority has approved

or disapproved the information contained herein.

Readers are cautioned that the foregoing risks and uncertainties are not exhaustive. Additional information on these and other

risk factors that could affect the Company ’s operations or financial results are included in the Company ’s annual information

form or annual report and may be accessed through the SEDAR+ website (www.sedarplus.ca) or through EDGAR on the SEC

website (www.sec.gov), respectively.