Kelly Strong resigned from his position as vice-president of Vale’s Ontario and UK operations May 1.
The company issued a statement saying Strong would be pursuing "another opportunity."
"After almost 14 years with our operations, Kelly has made substantial contributions in the areas of operations, employee engagement and safety and we wish him all the best," the company statement read.
Conor Spollen, director of Canada and UK operations and projects, takes over Strong's responsibilities until a permanent replacement is chosen.
Strong joined Inco in 2001 four years prior to the company’s acquisition by the Brazilian miner. He has held a number of management roles, including mine manager, general manager mine and mill, vice-president of production services and vice-president of mining and milling, before being named the company's vice-president of Ontario and UK operations.
He graduated from the Haileybury School of Mines with a mining engineering diploma, and earned his mining engineering degree from the South Dakota School of Mines and Technology.