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Ms. Priestly was appointed to the Board of Directors of SSR Mining in September 2020 and is a member of the Audit Committee and Corporate Governance and Nominating Committee. Ms. Priestly was a Director at Alacer Gold from August 2019 to September 2020. Ms. Priestly served as Chief Executive Officer of Turquoise Hill Resources Ltd. from 2012 until her retirement in 2015 and as Chief Financial Officer of Rio Tinto Copper from 2008 until 2012. She was Vice President, Finance and Chief Financial Officer of Rio Tinto’s Kennecott Utah Copper operations from 2006 to 2008. Ms. Priestly also served in executive management roles at American Nursing Services, Inc. and Entergy Corporation. Ms. Priestly began her career with Arthur Andersen where she progressed from Staff Accountant to Partner, holding various management and global leadership positions. While at Arthur Andersen, she provided tax, consulting and M&A services to global companies across many industries, including energy, mining, manufacturing and services. Currently, Ms. Priestly is a board member of TechnipFMC plc and Stericycle, Inc. She previously served on the Board of Directors of FMC Technologies, Inc., New Gold Inc., and Stone Energy Corporation.