July 18 (Reuters) - TransAlta Corp TA.TO :
* TRANSALTA ANNOUNCES RETIREMENT OF SUNDANCE UNIT 2
* TRANSALTA CORP - EFFECTIVE JULY 31, 2018, IT WILL RETIRE CURRENTLY MOTHBALLED SUNDANCE UNIT 2
* TRANSALTA CORP - WILL RETIRE CURRENTLY MOTHBALLED SUNDANCE UNIT 2 DUE TO CAPITAL REQUIREMENTS NEEDED TO RETURN UNIT TO SERVICE
* TRANSALTA CORP - RETIREMENT OF SUNDANCE UNIT 2 "DOES NOT CHANGE OUR PLANS FOR CONVERTING REMAINING FOUR UNITS AT SUNDANCE TO GAS GENERATION"