...- U.S.-based iron ore producer Cleveland-Cliffs Inc. has added significant size and scale through the transformative acquisitions of AK Steel and ArcelorMittal USA, which were completed in 2020. - In addition, steel demand, high steel and iron ore prices will support strong cash flow generation for the vertically integrated steel maker. - S&P Global Ratings is affirming its 'B-' issuer credit rating on Cleveland-Cliffs and revising the outlook to positive from negative. - We are affirming our 'B' issue-level rating on Cliffs' senior secured debt and our '###' issue-level rating on Cliffs' guaranteed unsecured and nonguaranteed subordinated debt. The recovery ratings remain '2' and '6', respectively. - The positive outlook reflects our expectation that the company could generate about $1 billion in free operating cash flow, majority of which we anticipate the company will use for debt repayment. We expect Cleveland-Cliffs will end 2021 with adjusted leverage of 3x-4x....