The 20232024 Annual and Special Meeting (the “Meeting”“Annual Meeting”) of holders of common shares (“Shareholders”) of SSR Mining Inc. (the “Company”) will be held virtually on May 25, 202323, 2024 at 10:00 a.m. MDT (Denver). The Annual Meeting provides Shareholders with an opportunity to participate directly in the affairs of the Company. Please see the accompanying Notice of Annual and Special Meeting for further details.

As the common shares of the Company are listed on the Australian Securities Exchange (the “ASX”) in the form of CHESS Depositary Interests (“CDIs”), the Company would like to remind CDI holders of the particular requirements and restrictions that their votes will be subject to. Each CDI represents a beneficial interest in one common share of the Company. CDI holders do not actually own direct legal title to common shares, which is held for and on behalf of CDI holders by CHESS Depositary Nominees Pty Ltd. (“CDN”), a wholly owned subsidiary of ASX Limited. This structure exists because the Company is listed on a Canadian exchange with a right to have its securities traded on the ASX by way of CDIs.

This arrangement impacts how CDI holders can record their votes for the matters to be tabled at the Annual Meeting. As CDIs are technically rights to common shares held on behalf of CDI holders by CDN, CDI holders need to provide confirmation of their voting intentions to CDN before the Annual Meeting. CDN will then exercise the votes on behalf of CDI holders. If a CDI holder wishes to vote, they must register their vote with CDN by using the CDI Voting Instruction Form (“VIF”) provided.

CDI holders who have questions about the information contained in this Proxy Statement or require assistance with voting can contact our proxy solicitation agent, Laurel Hill Advisory Group, for assistance by calling toll-free at 1-800-861-409 or by e-mail at assistance@laurelhill.com.

To have a CDI vote counted, CDI holders must return their completed VIF to CDN no later than 12:00 p.m. on May 22, 2023.20, 2024. This deadline has been set to allow CDN sufficient time to collate the votes of CDI holders and submit them to the Company no later than 5:00 p.m. MDT (Denver) on the second business day preceding the date of the Annual Meeting or any adjournment thereof.

The Company appreciates your support and your interest in the Company and looks forward to your continued support. The Company encourages CDI holders to lodge their votes ahead of the Annual Meeting in the manner specified above.

Yours Sincerely,

The 20232024 Annual and Special Meeting of Shareholders (the “Annual Meeting”) of holders of common shares (“Shareholders”) of SSR Mining Inc. (“SSR Mining,” the “Company,” “we,” “us” and “our”) will take place on May 25, 202323, 2024 at 10:00 a.m. MDT (Denver).

This Proxy Statement references policies, guidelines and other documents of the Company that are located on the Company’s website. The information on our website, including specific documents we reference, are not, and shall not be deemed to be, a part of this Proxy Statement or incorporated into any other filings we make with the United States Securities and Exchange Commission (the “SEC”) on EDGAR or with Canadian regulatory authorities through SEDAR.SEDAR+.

This year’sThe Annual Meeting will be a completely virtual meeting of Shareholders through an audio webcast live over the Internet. There will be no physical meeting location. The meetingAnnual Meeting will only be conducted via an audio webcast. Please go to https://meetnow.global/MWX2WMCM2MZMTZ to access and participate in the Annual Meeting. Any shareholderShareholder may attend and listen live to the webcast of the Annual Meeting over the Internet at such website. Shareholders as of the record date may vote and submit questions while attending the Annual Meeting via the Internet by following the instructions listed on your proxy card. The webcast starts at 10:00 a.m. MDT, on May 25, 2023.23, 2024. We encourage you to access the meetingAnnual Meeting prior to the start time.

Only holders of the Company’s common shares (the “Shares”) as recorded in our stock register at the close of business on March 28, 20232024 (the “Record Date”), may vote at the annual meeting.Annual Meeting. On March 28, 2023,2024, there were 206,868,001202,089,818 Shares issued and outstanding. As of the date of this Proxy Statement, the Company has not issued any shares of preferred stock, no Shares have multiple voting rights and there are no non-voting Shares. Each Share is entitled to one vote per shareShare on any matter submitted to a vote of our Shareholders.

Aside from the aforementioned voting matters, the Company’s board of directors (“Board of Directors” or the “Board”) knows of no matters to be presented at the Annual Meeting. If any other matter is properly brought before the Annual Meeting, sharesShares represented by all proxies received by the Board will be voted with respect thereto in accordance with the judgment of the persons appointed as proxies.

Under the Company’s majority voting policy, all general business matters to be considered at the Annual Meeting will each be determined by a majority of votes cast at the Annual Meeting by proxy or in person. General business matters

Special business matters to be considered at the Annual Meeting will each be determined by two-thirds of votes cast at the Annual Meeting by proxy or in person. Special business matters include, but are not limited to, approval of mergers or business combinations and approval of amendments to the Company’s Articles.articles.

As of the close of business on March 28, 2023,2024, there were 206,868,001202,089,818 Shares outstanding. The Shares trade under the symbol “SSRM” on the Toronto Stock Exchange (“TSX”) and the Nasdaq Global MarketStock Exchange (“NASDAQ”), and under the symbol “SSR” on the Australian Securities Exchange (“ASX”).

Unless otherwise specified, all dollar amounts herein are expressed in United States dollars. Canadian dollars will be designated as “C$.” The rates of exchange, as reported by the Bank of Canada, on December 31, 20222023 and March 28, 2023,2024, were:

Except as otherwise stated, the information contained herein is given as of March 28, 2023.2024.

A copy of our annual report on Form 10-K for the year ended December 31, 2022,2023, as filed with the SEC, is available to Shareholders without charge upon written request directed to the Corporate Secretary of SSR Mining Inc. at 6900 E. Layton Avenue, Suite 1300, Denver, Colorado 80237. The Company makes available on or through our website, free of charge, our annual report on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and all amendments to such reports filed pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) as soon as reasonably practicable after filing. Such

filings are also available, free of charge, through the SEC’s EDGAR system and SEDAR.on the Company’s profile on SEDAR+.

Additional information relating to SSR Mining is available on our website at www.ssrmining.com, and under the Company’s profile on EDGAR (www.sec.gov/edgar.shtml) and on SEDAR (www.SEDAR.com)SEDAR+ (www.sedarplus.ca). Financial and other information of SSR Mining is provided in its audited consolidated financial statements and management’s discussion and analysis for the financial year ended December 31, 2022,2023, and in our annual report of Form 10-K which can be found under our profile on SEDARSEDAR+ and will be sent without charge to any security holder upon request by contacting the Corporate Secretary of SSR Mining Inc. at 6900 E. Layton Avenue, Suite 1300, Denver, Colorado 80237, or by telephone at (303) 292-1299.

Our vision is to deliver sustainable value for all stakeholders through responsible mining. People and the environment are our most important resources, and we are committed to safeguarding them both now and for the future. We recognize the catalyst role our operations can play in local communities and commit to leaving a positive legacy. We take a long-term view of our sustainability responsibilities and are committed to having the higheststrong sustainability standards and targets, as well as plans, procedures and metrics in place, to ensure our commitments are met every single day.met.

At SSR Mining, ultimate responsibility for our sustainability programs and performance sits with the Board of Directors. The Board is supported in this regard by the Environmental, Health,Technical, Safety and Sustainability Committee (the “EHS&S“TSS Committee”), which oversees, monitors and reviews our practice and performance in areas of safety, health, community and stakeholder relationships and environmental management (including areas of water management and climate change). The EHS&STSS Committee meets formally at least four times a year, with additional meetings held as required. The charter of the EHS&STSS Committee is available on our website.

Sustainability is also a key responsibility for our executive and site teams. Our approach to sustainability is underpinned by the principle of collective responsibility and a belief that every employee must contribute to achieving our sustainability commitments. To reflect our commitment to sustainability, for employees eligible to receive annual short-term incentive compensation, a material component of the annual short-term incentive compensation performance metrics for the business are linked to the achievement of environmental, health, safety and sustainability (“EHS&S&S”) targets across the business.

We also expect our suppliers to respect our commitment to sustainability and the principles outlined in our Code of Conduct.Conduct, a copy of which is available on the Company’s website at www.ssrmining.com. We also encourage our major suppliers to be certified to industry best practice standards and require evidence that they have health and safety management plans in place.

Annually, theThe Company publishes an ESG and Sustainability Report that sets out in detail the Company’s environmental, health, safety and sustainabilityEHS&S initiatives and policies, including our approach to ESG. A copy of the latest SSR Mining ESG and Sustainability Report can be found on our website at: http://www.ssrmining.com/corporate_responsibility. Shareholders are encouraged to read our full ESG and Sustainability Report for more detailed information.

Being responsible environmental stewards is a critical part of our business. By using natural resources, water and energy efficiently, recycling waste, and working to protect biodiversity, we expect to be able to deliver long term

value to all stakeholders and leave a positive legacy. Our approach to environmental management is set out in our Environmental and Sustainability Policy, which is available on our website.

We manage our operations in strict compliance with all relevant environmental standards. One way we monitor our environmental performance is by tracking the number of environmental incidents related to our activities, even when they are minor and contained within the mine site. In 2022, we updated the classifications system across the Company, following an incident that occurred at Çöpler. In June 2022, Türkiye's Ministry of Environment, Urbanization and Climate Change (“Ministry of Environment”) temporarily suspended operations at the Çöpler mine site as a result of a leak of leach solution containing a small amount of diluted cyanide. The leak occurred from a pipeline that pumps diluted cyanide solution to Çöpler’s heap leach pad. The Ministry of Environment visited site and ordered remediation and improvement initiatives to be undertaken. SSR completed these

Tailings are a common waste product generated by the mining process. We manage our tailings facilities responsibly and in line with international standards and local regulations to meet site specific conditions. In February 2019, the International Council on Mining and Metals, (ICMM), the Principles for Responsible Investment (PRI) and the UN Environment Programme began developing the Global Industry Standard on Tailings Management (GISTM)(“GISTM”). During 2022,2023, we continued to align our operations and practices to the expectations of the GISTM. As we assess our compliance with the GISTM, we will continue to use the ESG and Sustainability Report to disclose information.our progress.

Safe and responsible cyanide management is critical to our operations and our social license to operate. We use cyanide in the plants at our gold operations to separate the gold from the ore. Proper and robust cyanide management is essential to prevent risk to both human health and the environment. We strive to adhere to good practice for the safe transportation, storage, use and disposal of cyanide. The foundation of our approach to cyanide management is built on strict operating standards and governed by legal requirements. It is also informed by industry best practices and the requirements of International Cyanide Management Code (ICMC)(“ICMC”). Our Marigold mine in Nevada was the first mine certified to ICMC standard and we are committed to aligning and certifying over time all our operations to ICMC standard.

The Company is committed to the overall health and safety of its employees, contractors, and the communities in which they operate. We believe that our employees and business partners are critical to our success as a business, and we are committed to providing a safe working environment for them. We remain committed to the principle of safe production and firmly believe occupational injuries and illnesses are preventable, and to provide a workplace that fulfills such objectives. Our Health and Safety policy applies to all employees and contractors working across our business. The policy is backed up by robust enterprise and site-specific safety management plans and systems which align with the international best practice standards OHSAS18001 and ISO45001. We regularly assess the safety and health-related risks across each part of our mines. These assessments ensure that we are aware of the specific risks in each part of the mine and inform us that the most appropriate critical controls are in place. Further to this, our safety plans follow a risk mitigation hierarchy of control which includes the identification of risk, assessment of controls and the implementation of controls.

We also recognize that there is more to ensuring worker and community health and well-being than simply working to prevent injuries. We are taking a proactive approach to health through environmental, biological and medical monitoring and quantifying occupational exposure risk. Our goal is to minimize health risks to employees, business partners, visitors and communities.

We recognize the important role our operations can play as catalysts for social and economic development in the communities we operate in and beyond. All our operations support a wide range of community development initiatives, which are based on the local socioeconomic environment and community needs. Our approach to community investment is set out in our ESG and Sustainability Policy. We support local social and economic development in three key ways: hiring from the local community, prioritizing local suppliers, and supporting community projects and initiatives. In 2022,2023, we continued our practice of direct investment in the local community infrastructure where we operate and in related social programs.

For local communities, employment opportunities are aone of the primary benefitbenefits of our presence. Hiring workers from the communities nearest our mines and the countries we operate in is one of the most important contributions we make to social and economic development. We strive to maximize local hiring at of all our operations. We also provide skills development programs for our workers, contractors, and local communities to help them develop the skills needed to work at the mine.

Each year we contribute to the development of our local communities by making direct investments in community infrastructure and social programs. We provide scholarships to local community members around our Çöpler mine, supporting students ranging from vocational high school students to one pursuing a Master’s degree.master’s degrees, with over 64% of such scholarships awarded to women in 2023. Marigold has provided both financial support to the University of Nevada, Reno, and individual scholarships to dependents of Marigold employees and students from local communities. Through the Colorado School of Mines, we also provide annual Women in Mining Scholarships to support a female mine engineering student to advance her career. At Seabee, we fund a breakfast program in the Gorden Deny School in the nearby town of La Ronge, Saskatchewan, providing a nutritious breakfast in an inclusive caring environment for students. In rural Jujuy near our Puna Operations, we partner with local schools to improve educational outcomes and, since 2012, we have supported the renovation of six local schools. In collaboration with the ArgentinaArgentine Ministry of Education we helped to create a program to enable community members, including our employees, to complete their secondary school education. In 2023, 20 scholarships were awarded to community members from regions near Puna, of which 12 were awarded to women.

Alongside the direct investments noted above, at our operations in Argentina and Türkiye, we have dedicated Social Development Funds.social development funds. These funds aim to support sustainable projects in the local communities to help diversify economic activity in the local area and reduce reliance on the mine. At our the Çöpler mine in Türkiye, the Social Development Fundsocial development fund provides financial support to local entrepreneurs, so they canincluding many local women, to set up or grow their own businesses. Projects are selected based on a set of development priorities agreed in consultation with the community and aligned with local development plans and priorities. The Company contributes a portion of the profits from gold produced annually by the Çöpler mine, thereby linking the benefits we share with the community to our success as a company. Our Puna Operations in Argentina also partnered with the local regional government to invest in local communities through a Social Development Fund.social development fund. This innovative partnership

In 2022,2023, Puna worked with leaders in seven local communities to help them gain the capacity to build a strategic plan for their own community. These plans involve diversifying the local economy by finding additional sources of income and creating new businesses. Our community relations team has supported these communities by bringing in professional planners to assist local leaders in this initiative.

In 2023, the Company launched a suite ofcontinued to promote various inclusion initiatives at the Company’sour corporate office in Denver, which includedincluding a variety of in-person events and long-termlonger-term initiatives designed to celebrate diversity and inclusion, connect with the community and create more opportunities for employees to come together. The program kicked off with a combination of cultural heritage events,In 2023, employee engagement initiatives included quarterly volunteer events at Food Bank of the Rockies, holiday food and community engagement initiatives.

PeopleOur people are our core strength.most valuable resource. More than any other factor, our success depends on their capabilities and commitment. We are focused on attracting and retaining experienced and skilled talent with a culture that puts safety at its core and supports people to reach their potential.

We believe that transparent communication with workers and unions is critical to the effective execution of our operations. We do not impose restrictions on union representation, and we respect the rights of freedom of association and collective bargaining. In total, 37% of our workforce are union members and have collective bargaining agreements in place. In 2022,2023, we enjoyed positive labor relations across all sites. As an example, at our Çöpler mine we invite union and workforce representatives to attend site level EHS&S committee meetings on a regular basis.

In 2022,2023, the Company undertook several initiatives designed to positively impact its workforce.workforce and invest in our talent. These initiatives were aligned with our core values, including a leader-lead discussion for employees to better understand Company values and how to live out those values in their roles at the Company. For its United States-based workforce, the Company adopted a revised U.S. Parental Leave Policy for Births and Adoptions. Under the revised policy, eligibleour Canadian operations, all salaried employees are entitled to six consecutive weeks of fully paid parental leaveparticipated in a rolling 12-month period. In addition, mothers who have given birth are entitled“Productive Conflict” workshop to an additional six to eight weeks of fully paid leave, as determined by the applicable health care provider, under the Company’s Short-Term Disability Policy.better empower effective communication and increase conflict management skills. For our senior leaders, a pilot leadership development program was initiated, and will continue into 2024. The Company also undertook a comprehensive redesign of its global performancetalent management practices by moving to a quarterly review process to ensure employees across our operationsschedule, instituting individual development plans, ensuring priority development actions are being evaluated on a consistenttaken and standardized basis.establishing detailed succession plans for our key roles.

Given the broad geographic footprint of the Company’s operations, we benefit from a meaningfully diverse workforce. The Company recognizes that a workforce composed of many individuals with a mix of skills, experience, perspectives, backgrounds and characteristics leads to a more robust understanding of opportunities, issues and risks, and to stronger decision-making. GivenAccordingly, the broad geographic footprint of the Company’s operations, we benefit fromBoard has adopted a meaningfully diverse workforce. The CompanyDiversity Policy and the Board of DirectorsCompensation Committee is responsible for overseeing diversity initiatives across the Company. We are committed to establishing measurable diversity objectives and assessing on an annual basis the achievement againstof these objectives, including the representation of women at all levels of the organization. The Company has adopted a Diversity Policy which requires the Company to establish specific diversity initiatives, programs and targets and the Compensation and Leadership Development Committee (the “CLD Committee”) oversees diversity initiatives across the Company. We recognize the industry-wide challenge of attracting women into the mining industry. However, in accordance with our policies we actively seek to increase the number of women we employ at our operations.

As of December 31, 2022,2023, the Company employed approximately 2,500 full-time employees and 2,0502,900 contract employees throughout the United States, Canada, Peru, Argentina and Türkiye.its global operations. As of December 31, 2022, 20%2023, 17% of the executive officers of the Company were women, approximately 45%44% of employees at the Company’s corporate office were women (excluding executives) and approximately 14% of the employees across the business were women.

The table below summarizes the total full-time workforce of the Company by location and gender:

In addition to gender diversity, the Company maintains self-reported ethnicity information for our United States-based and Canadian-based workforce:

The Company also reports employment data in annual U.S. Equal Employment Opportunity Commission EEO-1 reports for our U.S.-based workforce; however, the U.S. EEO-1 reports represent only a small portion of our global workforce.

The Company’s majority voting policy states that any nominee proposed for election as a director of the Company in an uncontested election must be elected by a majority of the votes cast. If a director is not elected by at least a majority, such director must immediately tender his or her resignation to the Chairman of the Board.Executive Chairman. The Corporate Governance and Nominating Committee (the “Governance Committee”) will consider such resignation and will make a recommendation to the Board and, absent exceptional circumstances, the Board will accept the resignation of such nominee. Within 90 days of the meeting,Annual Meeting, the Board will issue a press release disclosing the Board’s decision to accept or reject the nominee’s resignation. If the Board determines not to accept the nominee’s resignation, the press release will fully state the reasons for that decision. The nominee will not participate in any Committeecommittee or Board deliberations regarding their resignation offer.

The Governance Committee is responsible for recommending to the Board the qualifications for Board membership and for identifying, assessing, and recommending qualified director candidates for the Board’s consideration. The following pages set out information about the nominees for election as directors, including the specific experience, and qualifications that led to the Board’s conclusion that the person should serve as a director of the Company. The following individuals are proposed for election to the Board:

Additionally, mining operations, corporate finance and capital allocation, risk management, ESG, human capital management, ESG, information technology, and corporate governance competencies are notable strengths of several directors. All such experiences are invaluable in setting prioritiesimportant skills necessary for overseeing the business operations and appraising strategic actions and performance. This matrix is reviewed annually to identify opportunities among the collective skillsperformance of the Board.Company and setting the strategic direction. These skills are represented across our director nominees as a group.

In addition to the skills of the Board members set forth above, the Board regularly engages subject matter experts from time to time to supplement the Board’s skills, including compensation consultants, cyber security and information security experts, governance advisors and environmental specialists.