CALGARY, Alberta (Feb. 15, 2006) – TransAlta Corporation (TSX: TA; NYSE: TAC) today announced it has signed a five-year agreement with the Ontario Power Authority for its Sarnia Regional Cogeneration Power Plant.

Under the terms of the contract, TransAlta will be available to supply an average of 400 megawatts (MW) of electricity to the Ontario electricity market. The supply contract is effective until Dec. 31, 2010.

CALGARY, Alberta (March 6, 2006) – TransAlta Corporation (TSX: TA; NYSE: TAC) announced today it has received regulatory approval for the continuation of its normal course issuer bid program. The program is in its seventh consecutive year. TransAlta did not purchase any common shares during the last twelve months.

Consistent with prior years, TransAlta has the approval to purchase, for the purpose of cancelling, up to three million of its common shares. The shares represent approximately 1.5 per cent of the 199,530,610 common shares issued and outstanding as of Feb. 15, 2006.

CALGARY AND EDMONTON, Alberta (March 14, 2006) – TransAlta Corporation (TSX: TA; NYSE: TAC) and EPCOR Utilities Inc. today announced that they have signed a development agreement to jointly pursue TransAlta’s Keephills 3 power project. Keephills 3, formerly known as Centennial, is a proposed 450 megawatt (MW) unit adjacent to TransAlta’s existing Keephills facility, approximately 70 kilometres west of Edmonton, Alberta.

CALGARY, Alberta (April 10, 2006) – TransAlta Corporation (TSX: TA; NYSE: TAC) will release its first quarter 2006 results early in the morning on April 21, 2006. A conference call and webcast to discuss the results will be held for analysts and members of the media the same day beginning at 9 a.m. MDT (11 a.m. EST).

The call will begin with a short address by Steve Snyder, President and CEO and Brian Burden, Executive Vice-President and CFO, followed by a question and answer period for investment analysts. A question and answer period for the media will immediately follow.

First Quarter Highlights

• Comparable earnings of $0.38 per share compared to $0.25 per share in 2005
• Reported net earnings of $0.35 per share compared to $0.25 per share last year
• Generated cash flow from operations of $200 million compared to $150 million in 2005
• Achieved availability of 96.9 per cent compared to 93.4 per cent in 2005

CALGARY, Alberta (April 21, 2006) – TransAlta Corporation (TransAlta) (TSX: TA; NYSE: TAC) today announced first quarter 2006 comparable earnings of $75.4 million or $0.38 per share compared to $49

CALGARY, Alberta (April 24, 2006) – TransAlta Corporation (TSX: TA; NYSE: TAC) will hold its Annual Meeting of Shareholders on Thursday, April 27, 2006 at 1 p.m. Eastern (11 a.m. Mountain). The meeting will be held in the Vanity Fair 'A' Ballroom at Le Royal Meridien King Edward Hotel in Toronto.

Media are asked to arrive and register for the Annual Meeting before 12:45 p.m. There will be a question and answer session for the media immediately after the meeting.

CALGARY, Alberta (April 27, 2006) – TransAlta Corporation (TSX: TA; NYSE: TAC) announced today it declared a dividend of $0.25 per share on common shares payable July 1, 2006 to shareholders of record at the close of business June 1, 2006.

All currency is expressed in Canadian dollars except where noted.

CALGARY, Alberta (May 11, 2006) - Marvin Waiand, TransAlta Corporation's (TSX:TA;NYSE:TAC) Vice-President and Treasurer, will be presenting at the 15th Annual Bear Stearns Global Credit Conference  on Tuesday, May 16, 2006 at approximately 9:45 a.m. Eastern Time (7:45 a.m. Mountain Time) in New York City, New York.

The presentation will not be webcast. However presentation slides will be available at the start of the presentation on TransAlta's website at www.transalta.com under Events and Presentations of the Investor Relations section of TransAlta's website.

CALGARY, Alberta (July 12, 2006) – TransAlta Corporation (TSX: TA; NYSE: TAC) will release its second quarter 2006 results early in the morning on July 21, 2006. A conference call and webcast to discuss the results will be held for analysts and members of the media the same day beginning at 9 a.m. MDT (11 a.m. EST).

The call will begin with a short address by Steve Snyder, President and CEO and Brian Burden, Executive Vice-President and CFO, followed by a question and answer period for investment analysts. A question and answer period for the media will immediately follow.

Second quarter 2006 highlights:

• Reported net earnings of $0.43 per share compared to $0.13 per share last year
• Comparable earnings (1) of $0.16 per share compared to $0.13 per share in 2005
• Higher availability and improving OM&A costs
• Interest expense lower by $14 million

CALGARY, Alberta (July 21, 2006) – TransAlta Corporation (TransAlta) (TSX: TA; NYSE: TAC) today announced second quarter 2006 net earnings of $86.4 million ($0.43 per share).