Hong Kong's Hang Seng index extended losses on Monday giving up 0.16% or 33.2 points to 20,522.26 . The index still was negatively affected by property shares as the arrests of two Sun Hung Kai Properties executives on Friday put downward pressure on the whole index. The company fell 3% on Monday trade. New World Development Co shed 3.5%. Meanwhile Aluminum Corp. of China slipped 2.4%. On the upside on of leading exporters Esprit Holdings added 2.6%.