SSR Mining Announces the Acquisition of Roxmore Resources

For best results when printing this announcement, please click on link below: SSR Mining Announces the Acquisition of Roxmore Resources Complementary Strategic Transaction Further Enhances The Future Of Ssr Mining’s Us Platform Roxmore’s Multi-million Ounce Converse Project Is Located Six Kilometers From The Marigold Complex In Nevada Following The Construction Of The Buffalo Valley Project, Ssr Mining Envisions Developing Converse As A Contiguous Asset To Marigold With The Potential To Add Approximately 150,000 To 170,000 Ounces Of Annual Gold Production Over 10+ Years Once Converse Is In Production, Ssr Mining’s Us Platform Is Expected To Exceed 450,000 Ounces Of Annual Production During Peak Years And Average Approximately 350,000 — 400,000 Ounces Of Gold Production Annually Between 2033 AND 2042 Potential To Deliver +$200 Million In Life Of Mine Synergies As Compared To A Stand-alone Operation Highly Accretive All-cash Transaction Paid From Ssr Mining’s Existing Cash Position NO MATERIAL CAPITAL EXPENDITURES EXPECTED UNTIL EARLY 2030s Reinforces Ssr Mining’s Commitment To Low Capital Intensity Growth In Its Core Jurisdictions, Building On The Company’s Position As The Third Largest Gold Producer In The Usa SSR Mining Inc.

(Nasdaq/TSX: SSRM) ("SSR Mining" or the “Company") is pleased to announce that it has entered into a definitive agreement (the “Agreement”) whereby a wholly owned affiliate of SSR Mining will acquire all of the issued and outstanding shares of Roxmore Resources Inc. (TSX:RM) (“Roxmore”) pursuant to a court approved plan of arrangement under the Business Corporations Act (British Columbia) (the “Transaction”). S. dollars, unless otherwise indicated.

This press release features multimedia. View the full release here: Figure 1: Project Location Roxmore’s Converse Gold Project (“Converse”, the “Project”) is located 6 kilometers west of SSR Mining’s Marigold Complex (“Marigold”) on the Battle Mountain — Eureka Trend in Nevada, USA. Developing Converse as a contiguous asset to Marigold is expected to create opportunities for an expanded production profile in Nevada and deliver more than $200 million in life-of-mine synergies compared to the development of the Project on a stand-alone basis. 75 per Roxmore common share in cash consideration.

Roxmore shareholders will also receive common shares of a newly created gold exploration company (“SpinCo”) that will hold interests in Roxmore’s Rattlesnake Hills Project, Shabu River Project, and Newton Property. 99% by SSR Mining and be led by key members of Roxmore’s current management team. The cash component of the consideration, excluding the value of SpinCo, represents a 27% premium to Roxmore’s closing price on the Toronto Stock Exchange as of October 9(th), 2026 and a 47% premium to the 20-day volume weighted average price (“VWAP”).

The fully-diluted in-the-money equity value of the Transaction (excluding the value of SpinCo) is estimated to be approximately $464 million and enterprise value of $392 million. SSR Mining will fund the cash component of the consideration from the Company’s current balance sheet. 8 billion Rod Antal, Executive Chairman of SSR Mining, said, “The acquisition of Roxmore and its Converse Gold Project represents a compelling opportunity to add a high-quality multi-million ounce gold resource next door to our Marigold mine at an attractive valuation.

We have been carefully monitoring the progress of the Converse deposit for some time, and have conducted a focused due diligence review of the asset. Our due diligence process has been informed by our operational expertise at Marigold, including the technical work completed earlier this year for the construction of the nearby Buffalo Valley project. SSR Mining is the natural acquiror of this exciting deposit and developing an asset in close proximity to Marigold will allow for clear operating and financial efficiencies.

Building on the multi-decade mine life we have now defined for Marigold, Converse has the potential to add 150,000 to 170,000 ounces of average annual gold production to our US operations. The Transaction further reinforces the quality and scale of our platform in the USA and demonstrates our commitment to deliver value accretive growth in our core jurisdictions. The acquisition will be fully funded from our existing cash position and is aligned with our disciplined capital allocation strategy.

” Overview of the Converse Gold Project Strategic Location The Converse Gold Project borders the Marigold property and is located approximately 6 kilometers from Marigold’s main infrastructure, creating opportunities for shared services during future development. Combined with SSR Mining’s operational expertise and track record of value creation at Marigold, the Company expects meaningful cost savings and development efficiencies as compared to the stand-alone operation of the Converse Project. The Converse property is comprised of 526 unpatented mining claims and seven fee land parcels, covering more than 5,000 hectares in Humboldt and Pershing counties, Nevada.

The Project is expected to be evaluated as a future extension of the broader Marigold Complex. Geology The Converse property hosts two gold-rich skarn deposits known as North Redline and South Redline. These deposits formed following the emplacement of the Redline granitic intrusion into the Havallah Formation sedimentary package. 2 kilometers.

The deposit remains open at depth and along several structural trends, highlighting the potential for future resource growth. 5%, and the oxidation profile extends to 400 meters depth along key structures. As part of its due diligence process, SSR Mining completed an independent review of the Converse Mineral Resource estimate using Mineral Reserve and Mineral Resource price assumptions applied at Marigold, which are lower than the $3,000/oz pit shell used in Roxmore’s 2026 preliminary economic assessment for Converse (the “2026 Converse PEA”).

The due diligence process also identified significant upside potential through additional resource development and exploration drilling at the Project, as well as through the potential for higher gold price assumptions in resource shell designs. Mining Converse will be mined as a conventional open pit operation using standard truck and shovel mining methods. Importantly, SSR Mining envisages the development of the Converse Project at reduced annual ore tonnages than outlined in the 2026 Converse PEA in context of utilizing a $2,200/oz pit shell, consistent with the Mineral Reserve assumptions applied at Marigold.

Metallurgy & Processing Extensive metallurgical testing demonstrates that the Converse Project mineralization is amenable to conventional heap leaching. The existing metallurgical database is substantial and includes approximately 1,000 bottle roll tests and 75 column leach tests indicating that crush size is the dominant driver of gold recoveries. As part of its due diligence review, SSR Mining completed independent metallurgical verification, including copper solubility and cyanide soluble gold testing on representative samples across different lithologies, deposit depths and oxidation levels.

The results of this work support SSR Mining’s assessment of the Project and provide confidence in the metallurgical assumptions underpinning its evaluation. As project development advances, SSR Mining will conduct further metallurgical studies that will focus on optimizing flowsheet design, maximizing recoveries and refining operating parameters. Currently, SSR Mining envisions processing Converse ore via a 3-stage crush heap leach operation. Processing cost assumptions are supported by recent detailed engineering and unit price estimates completed for the 2026 Marigold TRS.

Capital Costs Initial capital costs are estimated at $800 to $900 million with no material development capital requirements until the early-2030s. Overall capital cost estimates for the potential development of Converse are supported by the due diligence completed by SSR Mining, detailed engineering work completed as part of the 2026 Marigold TRS for all key items including fleet additions, heap leach pads and process plant as well as from SSR Mining’s direct experience related to hydrogeology, dewatering, site power, and mine equipment costs at Marigold. S.

Bureau of Land Management, including submission of a Plan of Operations and completion of environmental baseline studies. Given the anticipated scale of the Project, an Environmental Impact Statement process is expected. SSR Mining believes Converse benefits from a well-defined permitting pathway and intends to leverage its extensive experience permitting and operating mines in Nevada, including Marigold and the adjacent Buffalo Valley project. Transaction Summary The proposed Transaction will be completed pursuant to a plan of arrangement under the Business Corporations Act (British Columbia).

1(2) of Multilateral Instrument 61-101 — Protection of Minority Securityholders in Special Transactions. In addition to the foregoing, the Transaction is also subject to the satisfaction of certain other closing conditions customary for a transaction of this nature including court approval. Subject to the satisfaction of these conditions, the Transaction is expected to be completed in Q4 2026. The Arrangement Agreement includes customary deal protections, including fiduciary-out provisions, non-solicitation covenants, and the right to match any superior proposals.

Additionally, a break fee of C$18 million is payable to SSR Mining by Roxmore in certain circumstances if the Transaction is not completed. Full details of the Transaction, including the Spin-Out, will be included in the Roxmore information circular to be mailed to Roxmore securityholders in connection with the Special Meeting. 8% of the issued and outstanding Roxmore shares (on a fully diluted basis) and who have entered into agreements to vote all of their Shares and other equity securities in favor of the Transaction. Counsel & Fairness Opinion Stikeman Elliott LLP and Dorsey & Whitney LLP are acting as SSR Mining’s legal advisors.

CIBC World Markets Inc. has provided a fairness opinion to the Board of Directors of SSR Mining, to the effect that, subject to the assumptions, limitations and qualifications set out in its fairness opinion, as of October 9, 2026, the consideration to be paid by SSR Mining pursuant to the Agreement is fair, from a financial point of view, to the Company. About SSR Mining SSR Mining Inc. is a free-cash-flow-focused gold and silver mining company and the third-largest gold producer in the United States.

SSR Mining has a diversified portfolio of operating, development and exploration assets across the Americas, including four operating mines in the USA, Canada, and Argentina. In 2026, SSR Mining is expected to produce between 450,000 and 535,000 Gold Equivalent Ounces. The Company is headquartered in Denver, Colorado and is listed under the ticker symbol SSRM on the Nasdaq Stock Market and the Toronto Stock Exchange. For more information, please visit: Endnotes _________________________ (1) Roxmore’s 2026 Mineral Resource Estimate has an effective date of March 31, 2026, and was estimated using a long-term gold price of $3,000 per ounce.

For further details, see Roxmore press release of April 20, 2026, and Roxmore’s technical report entitled “NI 43-101 Technical Report on the Preliminary Economic Assessment for the Converse Project, Nevada, USA” with an effective date of May 2, 2026. (2) Roxmore press release dated April 20, 2026, and Roxmore technical report entitled “NI 43-101 Technical Report on the Preliminary Economic Assessment for the Converse Project, Nevada, USA” with an effective date of May 2, 2026. The preliminary economic assessment contained in such report is preliminary in nature and includes an economic analysis that is based, in part, on inferred Mineral Resources.

Inferred Mineral Resources are considered too speculative geologically to have economic considerations applied to them that would enable them to be categorized as Mineral Reserves, and there is no certainty that the preliminary economic assessment will be realized.