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TransAlta Corporation -- Moody's Revises TransAlta's Outlook to Stable from Positive; Ba1 CFR affirmed

Moody's Investors Service ("Moody's") today changed TransAlta Corporation's (TransAlta) ratings outlook to stable from positive. Concurrently, the Corporate Family and senior unsecured ratings of Ba1 and Probability of Default rating of Ba1-PD were affirmed. TransAlta's Speculative Grade Liquidity (SGL) rating was upgraded to SGL-1 from SGL-2.