ATCO Ltd. to Release Second Quarter Results Friday, July 27, 2012

CALGARY, ALBERTA--(Marketwire - July 20, 2012) - ATCO Ltd. (TSX: ACO.X, ACO.Y) will release its financial results for the second quarter ended June 30, 2012 on Friday, July 27, 2012. The news release will be distributed via www.marketwire.com and the results, including Financial Statements and Management's Discussion & Analysis, will be posted on www.atco.com.

ATCO Ltd., with more than 8,800 employees and approximately $13 billion in assets, delivers service excellence and innovative business solutions worldwide with leading companies engaged in structures & logistics (manufacturing, logistics and noise abatement), utilities (pipelines, natural gas and electricity transmission and distribution), energy (power generation, natural gas gathering, processing, storage and liquids extraction) and technologies (business systems solutions). More information can be found at www.atco.com.

Forward-Looking Information:

Certain statements contained in this news release may constitute forward-looking statements. Forward-looking statements are often, but not always, identified by the use of words such as "anticipate", "plan", "expect", "may", "will", "intend", "should", and similar expressions. These statements involve known and unknown risks, uncertainties and other factors that may cause actual results or events to differ materially from those anticipated in such forward-looking statements. The Corporation believes that the expectations reflected in the forward-looking statements are reasonable, but no assurance can be given that these expectations will prove to be correct and such forward-looking statements should not be unduly relied upon.

The Corporation's actual results could differ materially from those anticipated in these forward-looking statements as a result of regulatory decisions, competitive factors in the industries in which the Corporation operates, prevailing economic conditions, and other factors, many of which are beyond the control of the Corporation.

The forward-looking statements contained in this news release represent the Corporations' expectations as of the date hereof, and are subject to change after such date. The Corporation disclaims any intention or obligation to update or revise any forward-looking statements whether as a result of new information, future events or otherwise, except as required under applicable securities regulations.