Board of Directors
Jeffery Tygesen was appointed as a member of the Board of Directors of Oyu Tolgoi LLC in December 2014.
Jeff was appointed Chief Executive Officer of Turquoise Hill Resources on 1 December 2014. Prior to this, Mr.Tygesen spent more than 30 years with Rio Tinto in operational roles across multiple product groups, as well as technology and innovation and strategic planning. Most recently, he was Vice-President, Copper Development at Rio Tinto Copper Group, responsible for overseeing Rio Tinto's joint venture interests at its Chilean and Indonesian copper operations. He is a former director of SouthGobi Resources.Jeff holds a Bachelor of Science degree (Mining Engineering) and a Master of Science degree (Mining Engineering), both from the University of Utah. He is a member of the Society of Mining Engineering and the Institute of Corporate Directors.