Wheaton Precious Metals Generates Strong Cash Operating Margins in 2022

Designated News Release
FOURTH QUARTER AND FULL YEAR FINANCIAL RESULTS

"Wheaton's portfolio of long-life, low-cost assets delivered over $1 billion in revenue and over $740 million in operating cash flow in 2022. This strong financial performance reflects the resiliency of Wheaton's streaming business model, which delivers amongst the highest margins in the precious metals space. Even in the current inflationary environment, Wheaton averaged 75% cash operating margins in 2022," said Randy Smallwood President and Chief Executive Officer of Wheaton Precious Metals. "In addition, Wheaton took strategic steps forward by optimizing the portfolio, adding four new streams and making sector-leading commitments on the sustainability front. With one of the strongest balance sheets in the industry, we enter 2023 exceptionally well-positioned to deliver long-term shareholder value through the significant organic growth profile already embedded in the portfolio as well as through additional accretive acquisitions."

Solid Financial Results and Strong Balance Sheet

• Fourth Quarter of 2022: $236 million in revenue, $172 million in operating cash flow, $166 million in net earnings and $104 million in adjusted net earnings ¹
• Full Year of 2022: $1,065 million in revenue, $743 million in operating cash flow, $669 million in net earnings and $505 million in adjusted net earnings ¹
• A cash balance of $696 million and no debt as at December 31, 2022
• Undrawn US$2 billion revolving credit facility with a July 18, 2027 maturity date
• Declared a quarterly dividend ¹ of $0.15 per common share

High Quality Asset Base

• Streaming agreements on 20 operating mines and 12 development projects
• 93% of attributable production from assets in the lowest half of their respective cost curves ^{2, 3}
• 30 years of mine life based on Proven and Probable Mineral Reserves and potential additional mine life from mineral resource conversion and exploration ^{2 ,4}
• Attributable gold equivalent production of 148,300 ounces in the Fourth Quarter of 2022 and 638,100 for the Full Year of 2022
• Average annual production for the ten-year period ending December 31, 2032 , is expected to be approximately 850,000 gold equivalent ounces ("GEOs") ^{2 , 3 , 5}
• Completed the previously disclosed termination of the Yauliyacu precious metal purchase agreement ("PMPA"), resulting in a $51 million gain on the disposition in the fourth quarter

Leadership in Sustainability

• Top Rankings: #1 out of 114 precious metals companies and Global Top 50 out of over 15,000 multi-sector companies by Sustainalytics, AA rated by MSCI, and Prime rated by ISS
• Commitment to Net-Zero Carbon Emissions by 2050 supported by interim targets covering all material emissions including Scope 3
• Established a sustainability linked element in connection with the revolving credit facility
• Recognized as one of the Best 50 Corporate Citizens in Canada by Corporate Knights

Operational Overview

Fourth Quarter Operating Asset Highlights

Salobo: In the fourth quarter of 2022, Salobo produced 37,900 ounces of attributable gold, a decrease of approximately 21% relative to the fourth quarter of 2021, primarily due to lower throughput and grades. According to Vale S.A.'s ("Vale"), plant availability was impacted due to additional planned and corrective maintenance performed in the fourth quarter.

Vale reports the Salobo III mine expansion project, which will increase the mill throughput by 50%, successfully commenced at the end of 2022. The project consists of two lines, the first of which started up in the fourth quarter of 2022 and the second expected to start in the first quarter of 2023.

Subsequent to the quarter, Wheaton and Vale agreed to amend the Salobo PMPA to adjust the expansion payment terms in order to provide increased flexibility for the ramp-up of the expansion while also maintaining an incentive for Vale to maximize grade on an annual basis. The expansion payment will now be phased, with Wheaton making an initial payment once actual throughput is expanded above 32 million tonnes per annum ("Mtpa") and a second payment if actual throughput is expanded above 35 Mtpa, by January 1, 2031 . The total cumulative payments will range from $283 million to $552 million , dependent at Vale's timing for each of the production increases. In addition, Wheaton will be required to make annual payments of between $5.1 million to $8.5 million for a 10-year period following payment of the expansion payments if the Salobo mine maintains a high-grade mine plan.

Antamina: In the fourth quarter of 2022, Antamina produced 1.1 million ounces of attributable silver, a decrease of approximately 19% relative to the fourth quarter of 2021, primarily due to lower grades as per the mine plan.

Peñasquito: In the fourth quarter of 2022, Peñasquito produced 1.8 million ounces of attributable silver, a decrease of approximately 18% relative to the fourth quarter of 2021 with lower recovery and grades as per the mine plan.

Constancia: In the fourth quarter of 2022, Constancia produced 0.7 million ounces of attributable silver and 10,500 ounces of attributable gold, an increase of approximately 13% and 6%, respectively, relative to the fourth quarter of 2021, with the increase in silver being primarily due to higher grades and recovery while the increase in gold production being primarily due to the mining of higher-grade material. According to Hudbay Minerals Inc. ("Hudbay"), gold production was lower than expected in the fourth quarter as a result of short-term changes in the mine plan that prioritized the processing of lower grade stockpiles and shorter-haulage distance ore from the Constancia pit versus higher-grade ore from the Pampacancha pit. These changes were implemented by Hudbay to ration fuel during a period of nation-wide social unrest and road blockades following a change in Peru's political leadership in early December 2022 , and ensured the plant continued to operate uninterrupted.

Sudbury : In the fourth quarter of 2022, Vale's Sudbury mines produced 6,300 ounces of attributable gold, an increase of approximately 45% relative to the fourth quarter of 2021, primarily due to higher throughput as fourth quarter 2021 production was impacted by the temporary closure of the Totten Mine after the shaft was damaged on September 26, 2021 .

Stillwater : In the fourth quarter of 2022, the Stillwater mines produced 2,200 ounces of attributable gold and 3,900 ounces of attributable palladium, a decrease of approximately 18% for gold and 18% for palladium relative to the fourth quarter of 2021. As per Sibanye-Stillwater Limited ("Sibanye"), the ramp-up of production post the regional flood event in early June 2022 progressed well, with production rates normalising during Q4 2022. Sibanye continues to reposition the Stillwater operations for the current skills shortage and changing macro environment and expects further normalization of production rates in 2023.

San Dimas: In the fourth quarter of 2022, San Dimas produced 10,000 ounces of attributable gold, a decrease of approximately 27% relative to the fourth quarter of 2021, primarily due to the mining of lower grade material. According to First Majestic Silver Corp., silver and gold grades were impacted primarily due to the processing of lower grade development ores from the Perez vein and higher tonnages from underground areas with challenging ground conditions within the Jessica and Regina veins in the Noche Buena area.

Other Gold: In the fourth quarter of 2022, total Other Gold attributable production was 3,100 ounces, a decrease of approximately 63% relative to the fourth quarter of 2021, primarily due to the closure of the 777 mine in June 2022 .

Other Silver: In the fourth quarter of 2022, total Other Silver attributable production was 1.8 million ounces, a decrease of approximately 19% relative to the fourth quarter of 2021, primarily due to the placement of Stratoni into care and maintenance, the closure of the 777 mine and the termination of the Keno Hill and Yauliyacu PMPAs.

Voisey's Bay: In the fourth quarter of 2022, the Voisey's Bay mine produced 128,000 pounds of attributable cobalt, a decrease of approximately 66% relative to the fourth quarter of 2021, primarily due to mining lower grade material during the ongoing transitional period between the depletion of the Ovoid open-pit mine and ramp-up to full production of the Voisey's Bay underground project. Vale reports that physical completion of the Voisey's Bay underground mine extension was 81% at the end of the fourth quarter. In the second quarter of 2021, Vale achieved the first ore production from the Reid Brook deposit, the first of two underground mines to be developed in the project. Eastern Deeps, the second deposit, has started to extract development ore from the deposit and is scheduled to start the main production ramp-up in the second half of 2023.

Detailed mine-by-mine production and sales figures can be found in the Appendix to this press release and in Wheaton's consolidated MD&A in the 'Results of Operations and Operational Review' section.

Fourth Quarter Development Asset Highlights

Blackwater Project: Artemis Gold Inc. ("Artemis") announced that it had executed an order for construction equipment required for major construction activities with the initial fleet expected to be delivered in early Q2 2023. In addition, plant site preparation is well advanced with the majority of the bulk earth works completed, and work on the construction camp is proceeding on schedule with 150 rooms and kitchen facilities on track to be ready for occupation by the end of February. Artemis also announced that it has closed the $385 million project loan facility to fund a significant component of the estimated construction costs of the Blackwater project. On March 9, 2023 , Artemis announced the approval of its BC Mines Act Permit for the Blackwater project. The approval of the BC Mines Act Permit is the final step required to allow Artemis to commence major works construction activities at the Blackwater Mine in Q1 2023 with the expectation of an initial gold pour in the second half of 2024.

Copper World Complex: Hudbay reports that it has executed a new strategy at Copper World focused on project de-risking and a two-phase mine plan with the first phase located on private land claims. The pre-feasibility study for Phase I of Copper World is well-advanced with the main facility engineering completed and metallurgical test work being analyzed as part of the concentrate leaching trade off evaluations. The pre-feasibility study is expected to be released in the second quarter of 2023.

Goose Project   : Subsequent to the quarter, Sabina Gold & Silver Corp. ("Sabina") announced that it had entered into a definitive agreement (the "Agreement") pursuant to which B2Gold Corp. has agreed to acquire all of the issued and outstanding shares of Sabina.

Marathon Project: Generation Mining Limited ("Gen Mining") announced that the Marathon Project was approved by the joint Federal and Provincial Environmental Assessment process, and that they will now proceed to obtain the necessary permits for construction and operation.

Curipamba Project   : Adventus Mining Corporation ("Adventus") announced that the Government of Ecuador has signed the Investment Contract in support of the development of the El Domo deposit, which is part of the Curipamba Project.

Portfolio Optimization

Yauliyacu: On August 18, 2022 , the Company announced that it had entered into an agreement with Glencore plc ("Glencore") to terminate its silver stream on the Yauliyacu mine in Peru for a cash payment of $150 million , less the aggregate value of any deliveries to Wheaton, prior to closing, of silver produced subsequent to December 31, 2021 . The transaction closed on December 6, 2022 , and the Company received a cash payment of $132 million . The Yauliyacu PMPA was terminated on December 14, 2022 .

Financial Review

Revenues

Revenue was $236 million in the fourth quarter of 2022 representing a 15% decrease from the fourth quarter of 2021 due primarily to a 10% decrease in the number of GEOs³ sold; and a 6% decrease in the average realized gold equivalent³ price.

Revenue was $1,065 million in the year ended December 31, 2022 , representing an 11% decrease from 2021 due primarily to a 6% decrease in the number of gold equivalent³ ounces sold; and a 6% decrease in the average realized gold equivalent³ price.

Cash Costs and Margin

Average cash costs¹ in the fourth quarter of 2022 were $434 per GEO² as compared to $433 in the fourth quarter of 2021. This resulted in a cash operating margin¹ of $1,226 per GEO³ sold, a decrease of 8% as compared with the fourth quarter of 2021.

Average cash costs¹ in 2022 were $433 per GEO² as compared to $439 in 2021. This resulted in a cash operating margin¹ of $1,292 per GEO³ sold, a 7% decrease from the 2021.

Balance Sheet   (at   December 31, 2022   )

• Approximately $696 million of cash on hand.
• During the fourth quarter of 2022, the Company made upfront cash payments totaling $44 million relative to PMPAs.
• With the existing cash on hand coupled with the fully undrawn $2 billion revolving credit facility, the Company is well positioned to fund all outstanding commitments and known contingencies as well as providing flexibility to acquire additional accretive mineral stream interests.

Reserves and Resources (at December 31, 2022 )

• Proven and Probable Mineral Reserves attributable to Wheaton were 13.90 million ounces of gold compared with 14.04 million ounces as reported in Wheaton's 2021 Annual Information Form ("AIF"), a decrease of 1%; 489.2 million ounces of silver compared with 564.6 million ounces, decrease of 13%; 0.60 million ounces palladium compared with 0.63 million ounces, a decrease of 3%; 0.17 million ounces of platinum, unchanged; and 33.2 million pounds of cobalt compared to 31.4 million pounds, an increase of 6%. On a GEO ³ basis, total Proven and Probable Mineral Reserves for all metals attributable to Wheaton were 21.27 million ounces, a decrease of 5% with 2% related to the terminations of the Yauliyacu and Keno Hill streams and the closure of the 777 mine.
• Measured and Indicated Mineral Resources attributable to Wheaton were 5.47 million ounces of gold compared with 5.44 million ounces as reported in Wheaton's 2021 AIF, an increase of 1%; 674.8 million ounces of silver compared with 767.8 million ounces, a decrease of 12%; 0.09 million ounces of palladium compared to 0.12 million ounces, a decrease of 28%; 0.097 million ounces of platinum, unchanged; and 1.5 million pounds of cobalt, unchanged. On a GEO ³ basis, total Measured and Indicated Mineral Resources for all metals attributable to Wheaton were 14.38 million ounces, a decrease of 8% with 6% related to the terminations of the Yauliyacu and Keno Hill streams.
• Inferred Mineral Resources attributable to Wheaton were 4.69 million ounces of gold compared with 4.98 million ounces as reported in Wheaton's 2021 AIF, a decrease of 6%; 327.9 million ounces of silver compared with 461.1 million ounces, a decrease of 29%, 0.35 million ounces of palladium, unchanged; 0.017 million ounces of platinum, unchanged; and 7.8 million pounds of cobalt compared to 6.8, an increase of 13%. On a GEO ³ basis, total Inferred Mineral Resources for all metals attributable to Wheaton were 9.37 million ounces, a decrease of 18% with 13% related to the terminations of the Yauliyacu and Keno Hill streams.

Estimated attributable reserves and resources contained in this press release are based on information available to the Company as of March 2, 2023 , and therefore will not reflect updates, if any, after that date. Updated reserves and resources data incorporating year-end 2022 estimates will also be included in the Company's 2022 Annual Information Form. Wheaton's most current attributable reserves and resources, as of December 31, 2022 , can be found on the Company's website at www.wheatonpm.com .

Sustainability

Community Investment Program:

• In 2022, Wheaton's contribution to the Nature Trust of B.C. was directed towards the Shoal Creek Estuary in an effort to acquire, protect and enhance estuaries along the B.C. coastline. In the fourth quarter, the Fall Gala Presented by Wheaton raised over $1.5 million in support of The Nature Trust's conservation programs.
• In 2022, Wheaton made a $1 million commitment to the British Columbia Institute of Technology's Inspire Campaign aimed at transforming the campus into a dynamic new learning environment.
• In the fourth quarter, the Sports Celebrities Festival Presented by Wheaton Precious Metals raised over CA$550,000 in support of Special Olympics BC and the Canucks for Kids Fund.

About Wheaton Precious Metals Corp. and Outlook

Wheaton is the world's premier precious metals streaming company with the highest-quality portfolio of long-life, low-cost assets. Its business model offers investors commodity price leverage and exploration upside but with a much lower risk profile than a traditional mining company. Wheaton delivers amongst the highest cash operating margins in the mining industry, allowing it to pay a competitive dividend and continue to grow through accretive acquisitions. As a result, Wheaton has consistently outperformed gold and silver, as well as other mining investments. Wheaton is committed to strong ESG practices and giving back to the communities where Wheaton and its mining partners operate. Wheaton creates sustainable value through streaming for all of its stakeholders.

Wheaton's estimated attributable production in 2023 as well as the 5-year average and 10-year annual gold equivalent production is as follows:

In 2023, gold equivalent production is forecast to be slightly higher than 2022 as expected stronger attributable production from Salobo and Constancia is forecast to be offset by weaker production from Antamina and the termination of the silver stream on Yauliyacu. Attributable production is forecast to increase at Salobo as a result of uninterrupted operations as well as the start-up of the Salobo III mine expansion and at Constancia due to higher grades associated with the mining of the Pampacancha deposit. Attributable production is forecast to decrease a Antamina due to lower grades as per the mine plan.

Average forecast production over the next five years is expected to increase primarily due to anticipated continued production growth from Salobo, Stillwater , Constancia, Voisey's Bay and Marmato as well as incremental production ounces from Blackwater, Toroparu, Marathon, Copper World Complex and Santo Domingo towards the latter end of the forecast period. Average forecast production over the next ten years includes additional incremental production from the Fenix project, Kutcho project and the Victor mine in Sudbury . Vale S.A. has indicated the potential for an additional expansion after the Salobo III expansion, but Wheaton does not currently include this in its forecast. Lastly, although Barrick Gold Corp. continues to advance a comprehensive review of the Pascua Lama project, Wheaton does not include any production from the project in its estimated average ten-year production guidance.

In accordance with Wheaton Precious Metals™ Corp.'s ("Wheaton Precious Metals", "Wheaton" or the "Company") MD&A and Financial Statements, reference to the Company and Wheaton includes the Company's wholly owned subsidiaries.

Webcast and Conference Call Details

A conference call will be held on Friday, March 10, 2023 , starting at 11:00 am (Eastern Time) to discuss these results. To participate in the live call please use one of the following methods:

To join the conference call without operator assistance, you may register and enter your phone number here to receive an instant automated call back.

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Live audio webcast: Webcast Link

Participants should dial in five to ten minutes before the call.

The conference call will be recorded and available until March 17, 2023 at 11:59 pm ET . The webcast will be available for one year. You can listen to an archive of the call by one of the following methods:

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This earnings release should be read in conjunction with Wheaton Precious Metals' MD&A and Financial Statements, which are available on the Company's website at www.wheatonpm.com and have been posted on SEDAR at www.sedar.com .

Mr. Wes Carson , P.Eng., Vice President, Mining Operations, Neil Burns , P.Geo., Vice President, Technical Services for Wheaton Precious Metals and Ryan Ulansky , P.Eng., Vice President, Engineering, are a "qualified person" as such term is defined under National Instrument 43-101, and have reviewed and approved the technical information disclosed in this news release (specifically Mr. Carson has reviewed production figures, Mr. Burns has reviewed mineral resource estimates and Mr. Ulansky has reviewed the mineral reserve estimates).

Wheaton Precious Metals believes that there are no significant differences between its corporate governance practices and those required to be followed by United States domestic issuers under the NYSE listing standards. This confirmation is located on the Wheaton Precious Metals website at https://www.wheatonpm.com/Company/corporate-governance/default.aspx.

End Notes

Consolidated Statements of Earnings

Consolidated Balance Sheets

Consolidated Statements of Cash Flows

Summary of Units Produced

Summary of Units Sold

Results of Operations

The operating results of the Company's reportable operating segments are summarized in the tables and commentary below.

On a gold equivalent and silver equivalent basis, results for the Company for the three months ended December 31, 2022 were as follows: