港股午评：恒生指数跌0.66%，恒生科技指数跌1.04%，博安生物跌超12%

Group 1 - The Hang Seng Index closed down 0.66% and the Hang Seng Tech Index fell by 1.04% on August 28 [1] - Jiaxin International Resources surged over 130% on its first day of trading [1] - Semiconductor Manufacturing International Corporation (SMIC) rose over 8%, while ZTE Corporation increased by over 6% [1] Group 2 - Both Boan Biological and Aikang Medical experienced declines of over 12% [1]