Barrick Gold president Kelvin Dushnisky resigned Monday to become CEO of AngloGold Ashanti, effective at the end of August.

Dushnisky has been with Barrick since 2002. He previously served as co-president with Jim Gowans, and before that vice-president of corporate and legal affairs. He became president in 2015.

“It has been a privilege to spend the past 16 years at Barrick, where I have had the unique opportunity to work alongside some of the most talented and dedicated people in the industry,” said Dushnisky in a statement. “I am grateful to our executive chairman and our board of directors for their confidence in me, and I would like to thank them and my Barrick colleagues around the world for their support and friendship.”

Related: Barrick trials short interval control at its Cortez mine in Nevada

AngloGold has been searching for a new CEO since April, when Srinivasan Venkatakrishnan resigned to take the helm at Vedanta Resources.

“Following an extremely competitive global search, we’re pleased to name someone of Kelvin’s calibre and experience to lead this organization,” AngloGold chairman Sipho Pityana said in a release. “Kelvin brings to us an impeccable set of values, a deep understanding of operating a large, complex global portfolio of mining assets and projects, and a keen familiarity of an evolving geopolitical landscape.”

Dushnisky will relocate to Johannesburg to head the South African-based company.

“On behalf of the entire team, we would like to extend our gratitude to Kelvin for his commitment to Barrick over many years. His passion for building enduring, trust-based relationships with host governments, communities, shareholders, and other partners has made an important contribution to Barrick’s growth and development,” said Barrick executive chairman John Thornton.

Barrick did not immediately announce his replacement.