Mr. Brent Ward reports

TRANSALTA DECLARES DIVIDENDS

The board of directors of TransAlta Corp. has declared a quarterly dividend of 18 cents per share on common shares payable on July 1, 2015, to shareholders of record at the close of business on June 1, 2015.

The board of directors of TransAlta also declared a quarterly dividend of 28.75 cents per share on TransAlta's issued and outstanding cumulative redeemable rate-reset first preferred shares, Series A, payable on June 30, 2015, to shareholders of record at the close of business June 1, 2015.

The board of directors of TransAlta also declared a quarterly dividend of 28.75 cents per share on TransAlta's issued and outstanding cumulative redeemable rate-reset first preferred shares, Series C, payable on June 30, 2015, to shareholders of record at the close of business June 1, 2015.

The board of directors of TransAlta also declared a quarterly dividend of 31.25 cents per share on TransAlta's issued and outstanding cumulative redeemable rate-reset first preferred shares, Series E, payable on June 30, 2015, to shareholders of record at the close of business June 1, 2015.

The board of directors of TransAlta also declared a quarterly dividend of 33.125 cents per share on TransAlta's issued and outstanding cumulative redeemable rate-reset first preferred shares, Series G, payable on June 30, 2015, to shareholders of record at the close of business June 1, 2015.