Turquoise Hill Resources announced that the Company's Board of Directors has accepted the resignation of non-independent director Alan Chirgwin, effective September 17, 2020. Mr. Chirgwin's resignation corresponds with his personal decision to leave Rio Tinto. The Board of Directors is announced, that Alfie Grigg will be joining the Board of Turquoise Hill, effective September 18, 2020. Mr. Grigg has more than 20 years' experience as a legal executive and senior advisor with extensive experience in joint ventures, governance, stakeholder engagement, business development and capital markets, across the resources, energy and technology sectors. Mr. Grigg is currently chief Counsel, Pacific for Rio Tinto's Aluminum business leading the legal and regulatory activities for Rio Tinto's bauxite mines, alumina refineries, aluminum smelters and associated power generation assets in the Pacific region.