Lifted by gains in the financial and real estate sector, the ADX General Index ended 0.42% higher at 2,753.94 points. The Sheikhdom's largest bank National Bank of Abu Dhabi (NBAD) added two percent, closing at Dhs12.45. RAK Properties (up 2.13% at Dhs0.48) posted the largest advance among the real estate developers. Abu Dhabi Ship Building Co. (ADSB) plummeted 5.14% to close at Dhs2.77. ADSB announced today, that Richard Turner has joined ADSB as Chief Financial Officer. Turner joins ADSB from Qatar Insurance Services L.L.C in Doha - Qatar where he held the position of Chief Financial Officer. After the closing of the ADX market, Standard & Poor's Ratings Services said in a press statement that it has affirmed its 'AA' long-term and 'A-1+' short-term sovereign credit ratings on the Emirate of Abu Dhabi. The outlook is stable. "Our Transfer & Convertibility assessment is unchanged at 'AA+. "The ratings on Abu Dhabi are supported by the government's very strong asset position, which provides significant financial flexibility, and that has allowed the emirate -through strong countercyclical policies and preemptive support to the financial sector- to face the global economic downturn with a high degree of resilience," said Standard & Poor's credit analyst Luc Marchand. Around eight percent of the world's proven oil reserves are located in Abu Dhabi.