Benjamin Guenther has been appointed as interim CEO of Jaguar Mining. Guenther was appointed to the board of Jaguar Mining in November 2017 and until recently was the chairman of the technical committee of the board. He is a mining engineer with a wide range of management and executive experience with more than 40 years in the mining industry. Guenther retired from AngloGold Ashanti in 2017. He has been working as a consultant since retiring from AngloGold Ashanti. Kevin Weston was appointed vice president, operations, in July. Weston is a mining engineer with nearly four decades of experience in all facets of the mining industry following graduation from McGill University in Montreal.