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Osisko Announces Preliminary Q1 2025 Geo Deliveries and Strong Quarterly Cash Margin

Production Results

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OSISKO ANNOUNCES PRELIMINARY Q1 2025 GEO DELIVERIES

AND STRONG QUARTERLY CASH MARGIN

Montréal, April 9th, 2025 – Osisko Gold Royalties Ltd (the “Company” or “Osisko”) (OR: TSX & NYSE) is pleased

to provide an update on its first quarter 2025 preliminary deliveries, revenues and cash margin, as well as on its

cash and debt positions as at March 31st, 2025. All monetary amounts included in this report are expressed in

United States dollars, unless otherwise noted.

PRELIMINARY Q1 2025 RESULTS

Osisko earned 19,014 attributable gold equivalent ounces1 (“GEOs”) in the first quarter of 2025.

Osisko recorded preliminary revenues from royalties and streams of $ 54.9 million during the f irst quarter and

preliminary cost of sales (excluding depletion) of $1.6 million, resulting in a quarterly cash margin2 of approximately

$53.3 million (representing a quarterly record cash margin of 97.1%).

As at March 31st, 2025, Osisko’s cash position was approximately $ 63.1 million, following a $ 19.6 million net

repayment on the Company’s revolving credit facility during the first quarter . Osisko’s revolving credit facility was

drawn by $74.3 million at the end of March 2025, with an additional amount of $308.2 million available to be drawn

plus the uncommitted accordion of C$200 million.

Subsequent to quarter end, Osisko paid down an additional $ 25.0 million against its revolving credit facility ,

reducing the outstanding balance to $49.3 million as at the date of this press release.

Q1 2025 RESULTS CONFERENCE AND WEBCAST CALL DETAILS

Osisko provides notice of the first quarter 2025 results and conference and webcast call details.

Results Release: Wednesday, May 7th, 2025 after market close

Conference Call: Thursday, May 8th, 2025 at 10:00 am ET

Dial-in Numbers:

(Option 1)

North American Toll-Free: 1 (800) 717-1738

Local – Montreal: 1 (514) 400-3792

Local – Toronto: 1 (289) 514-5100

Local – New York: 1 (646) 307-1865

Conference ID: 33088

Webcast link:

(Option 2)

https://viavid.webcasts.com/starthere.jsp?ei=1713958&tp_key=482b1aae4e

Replay (available until

Sunday, June 8th, at 11:59

PM ET):

North American Toll-Free: 1 (888) 660-6264

Local – Toronto: 1 (289) 819-1325

Local – New York: 1 (646) 517-3975

Playback Passcode: 33088#

Replay also available on our website at www.osiskogr.com

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The figures presented in this press release, including the cash and debt balances, and the revenues and costs of sales, have not been audited

and are subject to change. As the Company has not yet finished its quarter end procedures, the anticipated financial information presented in

this press release is preliminary, subject to quarter end adjustments, and may change materially.

(1) Gold Equivalent Ounces

GEOs are calculated on a quarterly basis and include royalties and streams. Silver and copper earned from royalty and stream

agreements are converted to gold equivalent ounces by multiplying the silver ounces or copper tonnes earned by the average silver price

or copper price for the period and dividing by the average gold price for the period. Cash royalties and other metals and commodities are

converted into gold equivalent ounces by dividing the associated revenue earned by the average gold price for the period.

Average Metal Prices

Three months ended

March 31

2025 2024

Gold (i) $2,860 $2,070

Silver (ii) $31.88 $23.34

Copper (iii) $9,340 $8,438

(i) The London Bullion Market Association’s pm price in U.S. dollars per ounce.

(ii) The London Bullion Market Association’s price in U.S. dollars per ounce.

(iii) The London Metal Exchange’s price in U.S. dollars per tonne.

(2) Non-IFRS Measures

Cash margin in dollars and in percentage of revenues are non-IFRS financial measures. Cash margin (in dollars) is defined by Osisko as

revenues less cost of sales (excluding depletion). Cash margin (in percentage of revenues) is obtained from the cash margin (in dollars)

divided by revenues.

Management uses cash margin in dollars and in percentage of revenues to evaluate Osisko’s ability to generate positive cash flow from its

royalty, stream and other interests. Management and certain investors also use this information, together with measures determined in

accordance with IFRS Accounting Standards such as gross margin and operating cash flows, to evaluate Osisko’s performance relative to

peers in the mining industry who present these measures on a similar basis. Cash margin in dollars and in percentage of revenues are only

intended to provide additional information to investors and analysts and should not be considered in isolation or as a substitute for measures

of performance prepared in accordance with IFRS Accounting Standards. They do not have any standardized meaning under IFRS

Accounting Standards and may not be comparable to similar measures presented by other issuers.

A reconciliation of the cash margin (in thousands of dollars and in percentage of revenues) is presented below:

Three months ended

March 31

2025 2024

Revenues $54,916 $45,047

Less: Cost of sales (excluding depletion) ($1,619) ($1,359)

Cash margin (in dollars) $53,297 $43,688

Cash margin (in percentage of revenues) 97.1% 97.0%

About Osisko Gold Royalties Ltd

Osisko is an intermediate precious metal royalty company focused on the Americas that commenced activities in

June 2014. Osisko holds a North American focused portfolio of over 18 5 royalties, streams and precious metal

offtakes. Osisko’s portfolio is anchored by its cornerstone asset, a 3-5% net smelter return royalty on the Canadian

Malartic Complex, one of Canada’s largest gold mines.

Osisko’s head office is located at 1100 Avenue des Canadiens -de-Montréal, Suite 300, Montréal, Québec,

H3B 2S2.

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For further information, please contact Osisko Gold Royalties Ltd:

Grant Moenting

Vice President, Capital Markets

Tel: (514) 940-0670 x116

Cell: (365) 275-1954

Email: [email protected]

Heather Taylor

Vice President, Sustainability and Communications

Tel: (514) 940-0670 x105

Email: [email protected]

Forward-looking Statements

Certain statements contained in this press release may be deemed “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. Forward-looking statements are statements other than statements of historical fact, that address, without limitation, future events,

that preliminary financial information may be subject to quarter end adjustments and the availability of the uncommitted accordion of the credit

facility. Forward-looking statements are statements that are not historical facts and are generally, but not always, identified by the words

“expects”, “plans”, “anticipates”, “believes”, “intends”, “estimates”, “projects”, “potential”, “scheduled” and similar expre ssions or variations

(including negative variations), or that events or conditions “will”, “would”, “may”, “could” or “ should” occur. Forward-looking statements are

subject to known and unknown risks, uncertainties and other factors, most of which are beyond the control of Osisko, and actual results may

accordingly differ materially from those in forward-looking statements. Such risk factors include, without limitation, (i) with respect to properties

in which Osisko holds a royalty, stream or other interest; risks related to: (a) the operators of the properties, (b) timely development, permitting,

construction, commencement of production, ramp- up (including operating and technical challenges), (c) differences in rate and timing of

production from resource estimates or production forecasts by operators, (d) differences in conversion rate from resources to reserves and

ability to replace resources, (e) the unfavorable outcome of any challenges or litigation relating title, permit or license, (f) hazards and

uncertainty associated with the business of exploring, development and mining including, but not limited to unusual or unexpected geological

and metallurgical conditions, slope failures or cave- ins, flooding and other natural disasters or civil unrest or other uninsured risks, (ii) with

respect to other external factors: (a) fluctuations in the prices of the commodities that drive royalties, streams, offtakes and investments held

by Osisko, (b) a trade war or new tariff barriers, (c) fluctuations in the value of the Canadian dollar relative to the U.S. dollar, (d) regulatory

changes by national and local governments, including permitting and licensing regimes and taxation policies, regulations and political or

economic developments in any of the countries where properties in which Osisko holds a royalty, stream or other interest are located or through

which they are held, (e) continued availability of capital and financing and general economic, market or business conditions, and (f) responses

of relevant governments to infectious diseases outbreaks and the effectiveness of such response and the potential impact of such outbreaks

on Osisko’s business, operations and financial condition; (iii) with respect to internal factors: (a) business opportunities that may or not become

available to, or are pursued by Osisko, (b) the integration of acquired assets or (c) the determination of Osisko’s PFIC status (d) that preliminary

financial information may be subject to quarter end adjustments. The forward- looking statements contained in this press release are based

upon assumptions management believes to be reasonable, including, without limitation: the absence of significant change in Osisko’s ongoing

income and assets relating to determination of its PFIC status, and the absence of any other factors that could cause actions, events or results

to differ from those anticipated, estimated or intended and, with respect to properties in which Osisko holds a royalty, stream or other interest,

(i) the ongoing operation of the properties by the owners or operators of such properties in a manner consistent with past pr actice and with

public disclosure (including forecast of production), (ii) the accuracy of public statements and disclosures made by the owners or operators of

such underlying properties (including expectations for the development of underlying properties that are not yet in production), (iii) no adverse

development in respect of any significant property, (iv) that statements and estimates relating to mineral reserves and resources by owners

and operators are accurate and (v) the implementation of an adequate plan for integration of acquired assets.

For additional information on risks, uncertainties and assumptions, please refer to the most recent Annual Information Form of Osisko filed on

SEDAR+ at www.sedarplus.ca and EDGAR at www.sec.gov which also provides additional general assumptions in connection with these

statements. Osisko cautions that the foregoing list of risk and uncertainties is not exhaustive. Investors and others should carefully consider

the above factors as well as the uncertainties they represent and the risk they entail. Osisko believes that the assumptions reflected in those

forward-looking statements are reasonable, but no assurance can be given that these expectations will prove to be accurate as actual results

and prospective events could materially differ from those anticipated such the forward-looking statements and such forward-looking statements

included in this press release are not guarantee of future performance and should not be unduly relied upon. These statements speak only as

of the date of this press release. Osisko undertakes no obligation to publicly update or revise any forward- looking statements, whether as a

result of new information, future events or otherwise, other than as required by applicable law.