ioneer Ltd. announced the appointment of two US-based Independent Non-Executive Directors to its Board - Rose McKinney-James and Margaret R. Walker. Following the retirement of Pat Elliott announced in November 2020, the Board undertook an extensive search process for his successor. The search provided the opportunity to broaden and strengthen the expertise of the Board, reflecting the evolving needs of the Company as it nears the construction phase of its Rhyolite Ridge Lithium-Boron Project, particularly with regard to large-scale chemical plant construction and ESG experience. These two critical areas of experience and commitment are expertly provided by these two outstanding new Non-Executive Directors. Rose has over two decades of service as a public company Director and has been a Board member of MGM Resorts International since 2005, where she currently chairs the Corporate Social Responsibility Committee. Margaret Walker is a chemical engineer with significant experience working across the chemical, engineering and construction sectors. She spent 36 years at NYSE-listed Dow Chemical Co, including six years (2004-2010) as Vice President Engineering and Technology Centers. Her experience spanned operations, engineering, supply chain and business leadership. Margaret serves on the boards of NYSE Methanex Corporation, and the board of Independent Project Analysis Inc.