May 23, 2012 (Chinavestor) Chinese stocks fell in Hong Kong after worries about Greece's exit of the euro zone intensified. The Hang Seng Index (INDEXHANGSENG:.HSI) fell 253.0 points or 1.3% erasing all gains earlier this week. The decline was universal, all but four components of the 42 member Hang Seng Index (INDEXHANGSENG:.HSI) fell for the day. Mainland Chinese stocks fell in tandem with Hong Kong ones for the Hang Seng China Enterprises Index (INDEXHANGSENG:.HSCEI) fell just as much as the broader Hang Seng Index. Only Huaneng Power (HKG:0901) and China Unicom (HKG:0762) managed to eke out some gains among major H-shares.