港股芯片股尾盘走低，华虹半导体跌超5%，中芯国际跌近4%。

Group 1 - The core viewpoint of the article indicates a decline in Hong Kong chip stocks, with notable drops in specific companies [1] Group 2 - Hua Hong Semiconductor experienced a decline of over 5% [1] - SMIC (Semiconductor Manufacturing International Corporation) saw a nearly 4% drop [1]