SSR Mining To Sell Çöpler Mine Stake To Cengiz Holding A.Ş. For $1.5B; Expects To Incur A Non-Cash Charge Between ~$310M-$340M

Entry Into a Material Definitive Agreement. On March 3, 2026, SSR Mining Inc., a British Columbia corporation (the "Company"), announced that it had entered into a binding memorandum of understanding (the "MoU") with Cengiz Holding A.Ş. ("Cengiz Holding") to sell its 80% ownership interest in the Çöpler mine and related properties in Türkiye (collectively, "Çöpler") for $1.5 billion (the "Purchase Price") in cash. As contemplated by the MoU, on March 24, 2026, the Company, its wholly owned subsidiary Alacer Gold Corp. S.à r.l. (the "Seller"), and Cengiz Holding entered into a share purchase agreement (the "Purchase Agreement") pursuant to which Cengiz Holding agreed to acquire or have an affiliate acquire all of the issued and outstanding shares of Alacer Gold Madencilik A.Ş., a wholly owned subsidiary of the Company through which the Company holds its interest in Çöpler, for a purchase price of $1.5 billion (subject to adjustments for certain cash, indebtedness and net working capital balances as well as for certain other amounts owed to third parties at the time of the closing) (the "Transaction"). The Transaction excludes the Company's interests in the Hod Maden development project. The Purchase Price is payable in U.S. dollars at closing. The Purchase Agreement contains representations from the Seller limited to its ownership of Çöpler, its ability to enter into the Purchase Agreement and related agreements and other matters. The closing of the Transaction is expected to occur on or before July 22, 2026, and will be subject to receipt of regulatory approval from the Turkish General Directorate of Mining and Petroleum Affairs as well as other consents and approvals that may be required in connection with the Transaction, and other customary closing conditions. The Purchase Agreement contains customary termination rights for failure to obtain required consents or material breach by another party. The Purchase Agreement supersedes the MoU in all respects. The Purchase Agreement contemplates the execution of a transition services agreement that will set forth certain services to be provided by the Company (or an affiliate) to the Çöpler business for a transition period following the closing of the Transaction. As had been contemplated by the MoU, Cengiz Holding has deposited an amount of $100 million in escrow, which will be credited against the purchase price at the closing or refundable (in full or partially) in certain limited circumstances. The foregoing description of the Purchase Agreement does not purport to be complete and is qualified in its entirety by reference to the full text of the Purchase Agreement, which is included as Exhibit 10.1 to this Current Report on Form 8-K and incorporated by reference herein. Item 2.06. Material Impairments. In connection with the Transaction described in Item 1.01 of this Current Report on Form 8-K, on March 24, 2026, the Company determined that it expects to incur a non-cash charge between approximately $310 million and $340 million, as a result of the Purchase Price compared to the estimate of the current net asset value of the Çöpler mine. The Company expects that the non-cash charge will be recorded in the quarter ending March 31, 2026. The Çöpler mine will be classified as held for sale in the balance sheet as of March 31, 2026, and will be treated as a discontinued operation. The estimated non-cash charge reflects the Company's best estimate as of the date of this Current Report on Form 8-K; however, the Company continues to evaluate the amount of the charge.