All amounts in U.S. dollars unless otherwise stated

Onex Corporation ("Onex") (TSX:OCX) announced today that its subsidiary, Emerald
Expositions ("Emerald"), has completed its acquisition of George Little
Management, LLC ("GLM") for $335 million. GLM operates several leading
business-to-business tradeshows in the United States.


Onex Partners III, Onex' flagship private equity fund, invested $140 million to
acquire GLM, of which Onex' share was $34 million as a Limited Partner in the
Fund. The balance of the acquisition price was funded by Emerald with debt. Pro
forma for the acquisition of GLM, the total Onex Partners III investment in
Emerald Expositions is $490 million, of which Onex' share is $119 million as
Limited Partner in the Fund. 


About Onex

With offices in Toronto, New York and London, Onex is one of the oldest and most
successful private equity firms. Onex acquires and builds high-quality
businesses in partnership with talented management teams. The Company has
approximately $16 billion of assets under management, including $5 billion of
Onex capital, in private equity, credit securities and real estate. Onex invests
its capital directly and as the largest limited partner in each of its Funds. 


Onex' businesses have assets of $44 billion, generate annual revenues of $34
billion and employ approximately 229,000 people worldwide. Onex shares trade on
the Toronto Stock Exchange under the stock symbol OCX. For more information on
Onex, visit its website at www.onex.com. The Company's security filings can also
be accessed at www.sedar.com.


About Emerald Expositions

Emerald is a leading operator of large business-to-business tradeshows in the
United States, producing more than 85 tradeshows and conference events per year
connecting over 525,000 buyers and sellers across ten diversified end-markets,
including general merchandise; sports; hospitality and retail design; jewelry,
luxury, and antiques; e-commerce; photography; decorated apparel; building;
healthcare; and military. Emerald is headquartered in San Juan Capistrano,
California. The company's shows are typically the most prominent and important
for exhibitors and attendees within their various industries. For more
information on Emerald, please visit www.emeraldexpositions.com.


Forward-Looking Statements

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 PLEASE CONTACT: 
Onex Corporation
Emma Thompson
Vice President, Investor Relations
416.362.7711
www.onex.com