...Robust metallurgical coal prices should support strong credit measures.Metallurgical (met) coal prices have remained relatively strong, with prices currently at about US$210 per metric ton (/mt). S&P Global Ratings assumes prices will gradually decline from these levels, but expects Conuma Coal Resources Ltd. to continue to generate strong credit measures. S&P Global Ratings estimates the company's adjusted debt-to-EBITDA to be below 2x over the next two years, with continuing positive free cash flow. However, met coal prices have historically been highly volatile and a 25% decline in price, all else being equal, could increase leverage to more than 4x in 2020. Ratings upside is constrained by the company's financial sponsor ownership. We view AMCI Group, which owns 77% of Conuma, as a financial sponsor. Recent dividend payments to AMCI have been modest and funded from free operating cash flow (FOCF). Also, the company benefits from AMCI's multi-decade relationships with the world's largest...