TORONTO, ONTARIO--(Marketwire - July 12, 2012) - Onex Corporation (TSX:OCX) announced that it will release its results for the second quarter and six months ended June 30, 2012 on August 8, 2012. A live broadcast of Onex' conference call to discuss the results will begin at 4:30 p.m. ET on August 8, 2012. A 90-day on-line replay will be available following the conclusion of the live broadcast. A link to the call and the replay will be available under the Investor Information section of Onex' website at [ www.onex.com ].

About Onex

Onex is one of North America's oldest and most successful investment firms committed to acquiring and building high-quality businesses in partnership with talented management teams. Onex manages investment platforms focused on private equity, real estate and credit securities. In total, the Company manages approximately $15 billion, of which $10 billion is third-party capital. As well, Onex invests its own capital directly and as a substantial limited partner in its Funds.

Onex' businesses have assets of $42 billion, generate annual revenues of $36 billion and employ approximately 246,000 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 ].

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