Bank assets stood at 141.34 trillion yuan ($22.8 trillion) by the end of June, registering year-on-year growth of 13.5 percent, the slowest since 2011, according to the China Banking Regulatory Commission.

Bank debt amounted to 131.98 trillion yuan, up 13.2 percent from the same period last year.

Assets of the big commercial banks reached 61.25 trillion yuan, an annual increase of 7.3 percent, taking up 43.3 percent of the assets in the banking industry.

The assets of joint-stock commercial banks were 25.79 trillion yuan, up 22.2 percent from last year, accounting for 18.2 percent of the industrial assets.