Hong Kong's Hang Seng index extended losses on Wednesday as enduring concerns about China's economic development pushed down exporter and commodity shares. Hang Seng index fell 0.15% or 31.61 points and finished at 20,856.63. Petrochina shed 0.2% and Lenovo Group dropped 0.8%. Sun Hung Kai Properties shares prolonged their decline, giving up 1.7% after one of its executives were arrested and accused of bribery. Belle International Holdings rallied 4.7% after footwear provide posted a 24% surge in 2011 profit.