[Hong Kong Stock Market Close: Hang Seng Tech Index Drops 5%] According to Golden Finance, on October 22, the Hang Seng Tech Index closed down 5.03% at 3,793.93 points, while the Hong Kong Hang Seng Index closed down 3.03% at 22,934.68 points. The optical communication sector led the decline, with Yangtze Optical Fibre and Cable falling nearly 12%, InnoLight Technology dropping over 7%, and Cambridge Industries Group falling over 11%. Major tech stocks collectively slumped, with Alibaba dropping over 6%, Xiaomi Group falling over 3%, and Tencent Holdings down nearly 3%. Lithium battery stocks continued to decline, with CATL falling over 7% and CALB dropping over 4%.