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­­News Release

June 05, 2025 – TheNewswire - TORONTO, ON – Star Royalties Ltd. (“Star Royalties&, or the “Company&) (TSXV: STRR, OTCQX: STRFF) is pleased to highlight Minera Alamos Inc.&s (“Minera Alamos&) (TSXV: MAI, OTCQX: MAIFF) update on development plans for its wholly-owned Copperstone Gold Mine (“Copperstone&). The Company has a 4% streaming agreement on gold produced for the duration of Copperstone&s life-of-mine (“LOM&). All amounts are in U.S. dollars, unless otherwise indicated. Neither TSX Venture Exchange nor its Regulation Services Provider accepts responsibility for the adequacy or accuracy of this release.

Highlights

• Mine Plan of Operations (“MPO&) amendment submitted: The MPO submission satisfies the requirements of the United States Code of Federal Regulations Title 43 Subpart 3809, administered by the U.S. Bureau of Land Management. This amendment is an essential regulatory step towards Minera Alamos& planned restart of mining operations at Copperstone in 2026.

• “Fast-tracking& project restart: The final approval for the MPO amendment is expected to be received by Minera Alamos before year-end 2025, which will facilitate the full restart of operations at Copperstone. Minera Alamos& existing site permits allow for site development activities to be initiated in parallel with the pending MPO amendment, enabling a "fast-track" approach to restarting the project. Minera Alamos is currently finalizing plans to transfer existing process plant equipment to Copperstone for refurbishment and installation, helping to reduce capital costs.

• Financing package: Minera Alamos has already received several indicative term sheets from various lenders and is currently advancing project finance discussions for the development and restart of Copperstone.

• Engineering and development: Engineering activities at Copperstone have been accelerated in preparation for the mine restart and process plant installation. An updated technical study for the project is expected to be released by Minera Alamos in Q4 2025 to demonstrate the positive impact of their ongoing efforts. The technical study is expected to assess opportunities for excess processing plant capacity for potential increases in future mining rates. In addition, metallurgical studies will be conducted to maximize processing flexibility to accommodate the possibility of additional resource zones being added into the mine plan.

Alex Pernin, Chief Executive Officer of Star Royalties, commented: “We are encouraged by Minera Alamos& development update on Copperstone with the submission of the MPO amendment marking another de-risking milestone in advancing this project to production in 2026. We look forward to additional upcoming announcements, including Copperstone&s financing package progress and the transfer and installation of processing plant equipment. Based on Minera Alamos& reissued PEA on the project and assuming a gold price of $3,000/oz, our stream&s pre-tax cash flow in just the first full year of production would represent approximately 40% of our current market capitalization. Furthermore, over its currently stated LOM and prior to any production increases or LOM extension, the Copperstone stream is expected to generate pre-tax cash flow of close to twice our current market capitalization. We also note that Copperstone&s current mine plan only incorporates half of its high-grade resource, and we look forward to the exploration initiatives planned by Minera Alamos that should further delineate the potential to extend the current LOM through resource conversion.&

Annual General Meeting (“AGM&) Extension

The Company applied for an AGM extension with the Ontario Superior Court of Justice, pursuant to the provisions of the Canada Business Corporations Act. The Notice of Application filed with the Ontario Superior Court of Justice is available for review on the Company&s website at www.starroyalties.com/investors/annual-meetings. The AGM extension is subject to approval by Corporations Canada. Star Royalties intends to schedule a date for the AGM as soon as practicable and to provide shareholders with the requisite notice of meeting and record date associated therewith.

CONTACT INFORMATION

For more information, please visit our website at starroyalties.comor contact:

About Star Royalties Ltd.

Star Royalties Ltd. is a precious metals and carbon credit royalty and streaming company. The Company&s objective is to provide wealth creation by originating accretive transactions with superior alignment to both counterparties and shareholders. The Company offers investors exposure to precious metals as well as carbon credit prices through its pure-green joint venture, Green Star Royalties Ltd., having innovated the world&s first carbon credit royalties.

CAUTIONARY NOTE REGARDING FORWARD-LOOKING INFORMATION

Certain statements in this news release may constitute "forward-looking statements", including those regarding future market conditions for metals and minerals, future valuation of Minera Alamos, development and production of Copperstone, permitting and construction scheduling of Coppertone, future location of Copperstone grinding and flotation equipment, expected future cash flow from the stream agreement, the Company&s position in Copperstone&s future gold production, the net cash position of the Company, and future capital raising opportunities are statements that address or discuss activities, events or developments that the Company expects or anticipates may occur in the future. When used in this news release, words such as "estimates", "expects", "plans", "anticipates", "will", "believes", "intends" "should", "could", "may" and other similar terminology are intended to identify such forward-looking statements. Forward-looking statements are made based upon certain assumptions and other important factors that, if untrue, could cause the actual results, performances or achievements of Star Royalties to be materially different from future results, performances or achievements expressed or implied by such statements. Forward-looking statements should not be read as a guarantee of future performance or results and will not necessarily be an accurate indication of whether or not such results will be achieved.

A number of factors could cause actual results, performances or achievements to differ materially from such forward-looking statements, including, without limitation, changes in business plans and strategies, market and capital finance conditions, ongoing market disruptions caused by the Ukraine and Russian conflict, metal and mineral commodity price volatility, discrepancies between actual and estimated production and test results, mineral reserves and resources and metallurgical recoveries, mining operation and development risks relating to the parties which produce the metals and minerals Star Royalties will purchase or from which it will receive royalty payments, risks inherent to royalty companies, title and permitting matters, activities by governmental authorities, currency fluctuations, the global, federal and provincial social and economic climate in particular with respect to addressing and reducing global warming, natural disasters and global pandemics, dilution, risk inherent to any capital financing transactions. These risks, as well as others, could cause actual results and events to vary significantly. Accordingly, readers should exercise caution in relying upon forward-looking statements and the Company undertakes no obligation to publicly revise them to reflect subsequent events or circumstances, except as required by law.

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