BEIJING, Aug 28  - Bank of China Ltd (BoC) , the country’s fourth-biggest lender by assets, posted a 5 percent rise in first-half net profit on Tuesday, supported by widening interest margins and a steady bad loan ratio.

Profit was 109.1 billion yuan ($15.87 billion) in the six months ended June 30, up from 103.7 billion yuan a year ago.

The first-half figure implies a net profit of 60.1 billion yuan for the second quarter, up 5 percent from 57.0 billion yuan in the year-ago period, according to Reuters calculations.

This missed an average estimate for a 7.5 percent growth in quarterly profit from three analysts polled by Thomson Reuters.

The bank’s net interest margin (NIM) - the difference between interest paid and earned - was 1.88 percent at the end of June, up from 1.85 percent at the end of March.

BoC’s non-performing loan (NPL) ratio was 1.43 percent at end-June, unchanged from end-March.

来源：路透社  2018-08-28