Rating companies say defaults in China will spread as the central bank’s interest rate cut will do little to stop a wave of maturities from worsening record debt downgrades. Chinese credit assessors slashed grades on 83 firms this year, already matching the record number in all of 2013, according to data compiled by Shenzhen-based China Investment Securities Co. Companies must repay 2.1 trillion yuan ($342 billion) in the first six months of 2015, the most for any half, data compiled by Bloomberg show. The People’s Bank of China, which cut its benchmark lending rate 40 basis points to 5.6 percent last week, must ... (full story)