CCB, in which Bank of America Corp (BAC) has a 10% stake, said its net interest income for the 12 months ended 31 December 2011, grew 21% to CNY304.57bn ($48.3bn) from CNY251.50bn ($39.88bn), and its net fee and commission income rose to CNY86.99bn ($13.79bn) from CNY66.13bn ($10.48bn).

The Bank’s net interest margin improved to 2.7% at the end of last year from 2.49% in the previous year, while its operating income stood at CNY399bn ($63.28bn) compared to CNY325bn ($51.55bn) during the same period previous year.

Profit before tax for the full year 2011 was CNY219bn ($34073bn) against CNY175bn ($27.75bn) during the corresponding period prior year.

China Construction Bank said its loans to the real estate industry grew by 0.2% last year, compared with a 12% increase in 2010.

Total non-performing loans ratio dropped to 1.09% from 1.14% over the same period.

The bank’s capital adequacy ratio was 13.68% as of the end of last year, higher than the 12.68% in 2010, while its core capital adequacy ratio stood at 10.97% as of 2011, up from the 10.40% in 2010, CCB said.