Finnish power company Fortum Oyj has announced its intention to acquire E.ON.'s 46.65% stake in German energy company Uniper, and the transaction could evolve into a full cash takeover currently valued at €8 billion. If the acquisition materializes, we see rising leverage and a potential weakening of the business risk profile as key risks to Fortum Oyj's credit profile. We are therefore placing our 'BBB+/A-2' ratings on Fortum Oyj on CreditWatch with negative implications. We aim to resolve the CreditWatch within the coming months as we gain visibility on the potential acquisitions' outcome and we review the resulting company's business and financial risk profiles. On Sept. 22, 2017, S&P Global Ratings placed its 'BBB+' long-term and 'A-2' short-term corporate credit