Dubai Islamic Bank will require capital in 2016 to boost its capital adequacy ratios, the bank's chief executive said on Wednesday. DIB's total capital adequacy ratio, a combination of Tier 1 and Tier 2 capital -- regarded as one of the key indicators of a bank's health -- stood at 16.5 percent at the end of the third quarter, up from 14.9 percent at the end of 2014, Adnan Chilwan said in an analysts' conference call.