China’s protracted belongings downturn is eroding the stability sheets of the country’s greatest state banks as their unhealthy loans creep up.Financial institution of Communications Co. reported Wednesday that its belongings unhealthy mortgage ratio jumped to 4.99% on the finish of closing yr from 2.8% a yr previous. Whilst the stability of its late mortgages slipped, the particular point out loans for the phase — a number one indicator of soured loans — jumped 23% to 9.88 billion yuan ($1.4 billion).