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Wheaton Precious Metals Launches Third Annual $1 Million Future of Mining Challenge Focused on Mine Optimization and Reducing Land Impacts Advancing into its third year, Wheaton Precious Metals™ Corp. (“Wheaton” or the “Company”) is

Corporate Updates

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June 4, 2026

Vancouver, British Columbia

Wheaton Precious Metals Launches Third Annual

$1 Million Future of Mining Challenge Focused on

Mine Optimization and Reducing Land Impacts

Advancing into its third year, Wheaton Precious Metals™ Corp. (“Wheaton” or the “Company”) is

pleased to announce the return of its Future of Mining Challenge, calling on innovators worldwide

to propose solutions that optimize mining and address land impacts.

“Mining resources underpin nearly every sector, and as global demand grows, the need to

produce them responsibly has never been greater ,” said Haytham Hodaly, President and Chief

Executive Officer of Wheaton. “ We believe innovation is key to improving efficiency, enhancing

performance, and reducing environmental impacts. The third edition of the Future of Mining

Challenge is focused on advancing solutions that optimize mining methods and reduce impacts

on land. We have been encouraged by the creativity and p rogress of past participants and look

forward to the ideas this year’s challenge will bring.”

For the 202 6/2027 challenge, Wheaton will award US$1 million to a cleantech venture with an

innovative technology that seeks to either strengthen orebody knowledge or improve extraction

methods.

“It is remarkable to see how far mining has advanced, driven by the ingenuity of entrepreneurial

minds committed to progressing the industry forward,” said Patrick Drouin, Chief Sustainability

Officer of Wheaton. “By backing bold, early -stage technologies, we hope to accelerate the next

generation of solutions that improve performance and reduce environmental impact.”

Wheaton invites cleantech innovators worldwide to participate in its Future of Mining Challenge

and will accept expressions of interest until 11:59 p.m. (Pacific Time) on Friday, August 21, 2026.

Once all expressions of interest have been reviewed, Wheaton will invite select ventures to submit

a full application in September 202 6. An information session will be held in early July to provide

guidance for applicants and address questions on the process.

Once again, Wheaton is collaborating with the University of British Columbia’s Sauder School of

Business, working closely with a team that brings deep expertise in venture building and early -

stage innovation support. The winner of the 2026/2027 Future of Mining Challenge will be

announced in March 2027 during the PDAC Convention in Toronto, the largest mining conference

in the world.

The 2025/2026 Future of Mining Challenge, announced earlier this year, focused on sustainable

water management. Cetos Water was named the winner and awarded US$1 million in recognition

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of its innovative technology, which transforms wastewater generated by mining operations into

clean, reusable water.

For more information about Wheaton’s Future of Mining Challenge and how to submit an

expression of interest, please visit www.futureofmining.ca.

About Wheaton Precious Metals Corp.

Wheaton Precious Metals is the world’s premier precious metals streaming company, providing

shareholders with access to a high-quality portfolio of low-cost, long-life mines around the world.

Through strategic streaming agreements, Wheaton partners with mi ning companies to secure a

portion of their future precious metals production. Committed to responsible mining practices,

Wheaton employs industry -leading due diligence practices with a goal of unlocking long -term

value for shareholders while supporting th e broader mining industry to deliver the commodities

society needs through access to capital. Wheaton’s shares are listed on the Toronto Stock

Exchange, New York Stock Exchange and London Stock Exchange under the symbol WPM.

Learn more about Wheaton Precio us Metals at www.wheatonpm.com or follow us on social

media.

For further information:

Media Contact

Simona Antolak

Vice President, Communications & Corporate Affairs

Tel: 604-639-9870

Email: [email protected]

Investor Contact

Emma Murray

Vice President, Investor Relations

Tel: 1-844-288-9878

Email: [email protected]

Cautionary Note Regarding Forward Looking-Statements

This press release contains “forward-looking statements” within the meaning of the United States

Private Securities Litigation Reform Act of 1995 and “forward -looking information” within the

meaning of applicable Canadian securities legislation concerning the business, operations and

financial performance of Wheaton. Forward -looking statements, which are all statements other

than statements of historical fact, include, but are not limited to, statements with respect to

innovative mining technology, the pote ntial success of that technology, and its ability to be

commercialized, ESG and climate change strategy, targets and commitments and climate

scenario analysis by Wheaton and at mineral stream interests currently owned by Wheaton (the

“Mining Operations”). Forward-looking statements are subject to known and unknown risks,

uncertainties and other factors that may cause the actual results, level of activity, performance or

achievements of Wheaton to be materially different from those expressed or implied by su ch

forward-looking statements including (without limitation) risks relates to the ability to identify

innovative mining technology, the potential success of that technology and the ability to

commercialize that technology, risks related to the ability to a chieve ESG and climate change

strategy, targets and commitments at both Wheaton and the Mining Operations and other risks

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discussed in the section entitled “Description of the Business – Risk Factors” in Wheaton’s Annual

Information Form for the year ended December 31, 2025 and the risks identified under "Risks and

Uncertainties" in Wheaton’s Management's Discussion and Analysis (“MD&A”) for the year ended

December 31, 2025, both available on SEDAR+ and in Wheaton’s Form 6-K filed March 12, 2026,

all available on EDGAR (the “Disclosure”). Forward-looking statements are based on assumptions

management currently believes to be reasonable, including (without limitation) that Wheaton will

be able to identify innovative mining technology, ESG and climate change strategy, targets a nd

commitments at both Wheaton and the Mining Operations will be achieved, there will be no

material adverse change in the market price of commodities, that estimations of future production

from the Mining Operations and mineral reserves and resources are accurate, that the mining

operations from which Wheaton purchases precious metals will continue to operate, that each

party will satisfy their obligations in accordance with the precious metals purchase agreements,

and such other assumptions and factors as set out in the Disclosure.