...+ Glencore is maintaining debt and leverage at structurally lower levels than those prior to 2015, in line with its financial policies. + We estimate that Glencore has established a financial cushion such that credit metrics are likely to remain adequate even if metal prices and cash flows decline moderately. + We are therefore raising our long-term rating on Glencore to '###+' from '###' and affirming the short-term rating at 'A-2'. + The stable outlook reflects our view that Glencore has sufficient room at the '###+' rating level to accommodate modest acquisitions and moderate adverse commodity price or operational developments. LONDON (S&P Global Ratings) May 29, 2018--S&P Global Ratings today raised its long-term issuer credit rating on global diversified mining and trading company Glencore PLC and its related entities to '###+' from '###'. The outlook is stable. At the same time, we affirmed our 'A-2' short-term rating on Glencore. We also raised to '###+' from '###' our issue rating...