...+ Construction company Salini Impregilo reported weaker-than-expected 2017 results, mainly reflecting sluggish operating cash flow generation and adverse foreign exchange movements that affected the company's reported net financial position. + The company's revised 2018-2019 financial targets may result in lower adjusted credit metrics for the same period than in our base case that may not be commensurate with the current ratings. + We are therefore placing our '##+' ratings on Salini Impregilo on CreditWatch negative. + We aim to resolve the CreditWatch once we gain clarity on management's deleveraging strategy in 2018-2019. MILAN (S&P Global Ratings) March 21, 2018--S&P Global Ratings today placed on CreditWatch with negative implications its '##+' ratings on Italy-based construction company Salini Impregilo SpA and its debt. On March 15, 2018, Salini Impregilo published its 2017 results, reporting weaker¡than-expected credit metrics, mainly owing to depressed operating cash flow generation...