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June 7 (Reuters) - Canadian National Railway Co CNR.TO
CNI.N said on Tuesday Chief Executive Claude Mongeau, who
returned to work in January after a six-month sick leave, will
step down at the end of this month due to the effects of his
disease.
CN Rail, the country's biggest railway, said Chief Financial
Officer Luc Jobin would replace Mongeau as president and CEO,
effective July 1.
"I was filled with joy returning at the helm earlier this
year, but I gradually came to realize that it is difficult to
fulfill such a demanding role given my new condition as a
laryngectomee," Mongeau said in a statement.
Mongeau went on medical leave in August 2015 after he was
diagnosed with a rare type of tumor in his throat.
He joined CN Rail 22 years ago and was CFO for 11 years,
before taking over the reigns of the company six-and-a-half
years back.
Jobin joined CN Rail in 2009 as CFO and executive vice
president. He was charged with running the company during
Mongeau's medical leave.