Treaty 8 First Nations of Alberta and ATCO Embark Upon Historic Partnership

Economic Growth Eyed as Grand Chief and ATCO Sign Letter of Intent

CALGARY, ALBERTA--(Marketwire - May 20, 2008) - Treaty 8 First Nations of Alberta and ATCO today signed a Letter of Intent to explore business opportunities while developing long-term, mutually beneficial working relationships.

The Letter of Intent with ATCO is the first of its kind ever signed by the Treaty 8 First Nations of Alberta.

"Today sets the framework to work together to build sustainable economic growth and explore mutually beneficial business opportunities," said Nancy Southern, President and Chief Executive Officer, ATCO Group, who along with Grand Chief Arthur Noskey, signed the Letter of Intent during a ceremony in Calgary, Alberta. "All of our partnerships are built on the understanding of mutual respect, trust, and transparency." More than a year in the making, the partnership provides the criteria through which opportunities will be jointly analyzed and acted upon.

"The partnership offers opportunity while respecting the interest of participating First Nations, and recognizes and protects the cultures and communities of Treaty 8 First Nations of Alberta. We share the value of mutual respect and trust with our new partners in pursuing a successful business and entrepreneurial future for our people," said Grand Chief Noskey. "ATCO's First Nation partnerships have been very successful, and we look forward to working together for the long-term benefit of our people, our land, and our First Nations."

The Honourable Gene Zwozdesky, Minister of Alberta Aboriginal Relations, noted that strong, vibrant, Aboriginal communities are an important part of the province's future. "Through programs like the First Nations Economic Partnerships Initiative (FNEPI), we look forward to working together with Treaty 8 First Nations of Alberta and ATCO Group, to support First Nations full participation in the social and economic life of Alberta."

Treaty 8 First Nations of Alberta is a representative organization of 23 First Nations covering approximately half of Alberta with a Treaty relationship with Canada, which confers Treaty Promise including the integrity of the usual vocations of livelihood and Her Majesty's bounty and benevolence. There are approximately 32,000 people within the Treaty 8 First Nations in Alberta.

ATCO has formed a number of alliances with First Nation communities, specifically ATCO Electric who interfaces in Northeastern Alberta on land use and business opportunities which have led to capacity building and long term benefits to communities. ATCO Frontec has two joint venture projects with the Fort McKay First Nations north of Fort McMurray - the recently opened Creeburn Lake Lodge and a new workforce camp scheduled to house more than 1,000 workers for Suncor oil sands expansion.

ATCO Group is an Alberta-based, worldwide organization of companies with approximately $8.2 billion in assets and more than 7,800 people actively engaged in Power Generation, Utilities (natural gas and electricity transmission and distribution) and Global Enterprises (industrial manufacturing, technology, logistics and energy services).

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 Corporation's 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.

ATCO Group
N.C. (Nancy) Southern
President & Chief Executive Officer
(403) 292-7561
Muskwa Productions & Consulting
Nicole Robertson
Media Specialist
(403) 238-6112 or Cell: (403) 616-4999