China Construction Bank, the country's second largest state-owned bank, said its net profit rose 14.57 percent to 106.49 billion yuan (about 16.9 billion U.S. dollars) in the first half of this year. The bank's business revenue during the period totalled 227 billion yuan, registering a 15.8 percent year-on-year growth, according to the bank's report filed with the Shanghai Stock Exchange late Sunday. Total assets of the bank stood at 13.5 trillion yuan as of the end of June, up nearly 10 percent compared to the end of last year. Net interest income grew 16.46 percent year on year to 169.7 billion yuan, accounting for 74.75 percent of the total business revenue, said the bank. Income from commission charges also rose 3.3 percent from the same period last year to 49.24 billion yuan, it said. As of the end of June, the bank's capital adequacy ratio stood at 13.82 percent, while core capital adequacy ratio was 11.19 percent, down 0.14 percentage point and 0.22 percentage point from six months earlier, respectively. The bank's non-performing loan (NPL) ratio was 1 percent as of the end of June, down 0.09 percentage point compared to the level at the end of 2011. Meanwhile, the bank's outstanding NPL stood at 70.42 billion yuan, down 498 million yuan from six months ago. Shares of the bank dropped 0.75 percent to 3.98 yuan in Shanghai on Friday.