Turquoise Hill Resources Ltd. announced the appointment of Jo-Anne Dudley as Chief Operating Officer, effective June 3, 2019. Ms. Dudley has 25 years of experience in the mining industry. For the past nine years she has been a key member of the Oyu Tolgoi technical team that manages the development of the world-scale Oyu Tolgoi copper-gold mine in Mongolia in consultation with Turquoise Hill. Most recently she led Oyu Tolgoi's 30-person Strategic Mine and Resources Planning unit. Prior to commencing her work on Oyu Tolgoi, Ms. Dudley spent five years working with Rio Tinto's technical group on mines in South Africa and the USA. Before that she worked in underground mines across Australia as an Underground contractor and spent nearly ten years in Operations and Studies roles at the Northparkes copper and gold mine in central New South Wales, Australia. During her time at Northparkes, it developed from an open pit operation to an underground mine using block caving, similar to the development path at Oyu Tolgoi.