Toronto, March 4, 2019 – Onex Corporation (“Onex”) (TSX: ONEX) today announced Blair
Fleming has joined Onex Credit as Head of Origination to accelerate development of the firm’s
middle-market origination capabilities.
“Onex Credit has grown from several hundred million to nearly $11 billion of assets under
management today,” said Michael Gelblat, Chief Executive Officer and Chief Investment Officer
at Onex Credit. “Blair’s proven abilities and long-standing financial sponsor relationships will be
valuable assets to the firm and our investors as we continue our growth.”
Walt Jackson, Portfolio Manager and Head of Private Debt at Onex Credit added, “I’m delighted
to be partnering with Blair to accelerate our origination efforts and continue to expand our private
lending business.”

Mr. Fleming has more than thirty years of experience in capital markets, most recently as U.S.
Head of Investment Banking at RBC Capital Markets. Prior to that, he held several roles within
RBC, including Head of U.S. Capital Markets.
“Joining Onex Credit is a unique opportunity for me, having known and worked with Onex for
more than 20 years,” said Mr. Fleming. “It’s an exciting time to join Onex Credit and help
accelerate growth of the platform.”

About Onex
Onex is one of the oldest and most successful private equity firms. Through its Onex Partners and
ONCAP private equity funds, Onex acquires and builds high-quality businesses in partnership with
talented management teams. At Onex Credit, Onex manages and invests in leveraged loans,
collateralized loan obligations and other credit securities. Onex has $31 billion of assets under
management, including $6.4 billion of Onex proprietary capital, in private equity and credit
securities. With offices in Toronto, New York, New Jersey and London, Onex and the team are
collectively the largest investors across Onex’ platforms.
Onex’ businesses have assets of $51 billion, generate annual revenues of $32 billion and employ
approximately 217,000 people worldwide. Onex shares trade on the Toronto Stock Exchange
under the stock symbol ONEX. For more information on Onex, visit its website at
www.onex.com. Onex’ security filings can also be accessed at www.sedar.com.

This news release may contain forward-looking statements that are based on management’s current
expectations and are subject to known and unknown uncertainties and risks, which could cause
actual results to differ materially from those contemplated or implied by such forward-looking
statements. Onex is under no obligation to update any forward-looking statements contained
herein should material facts change due to new information, future events or otherwise.

For further information:
Emilie Blouin
Director, Investor Relations
Tel: +1 416.362.7711