Hong Kong-listed optical-communications stocks slid sharply in afternoon trade:
Xizhi Technology‑P (01879.HK) fell nearly 8%, Jingxin Communication (02342.HK)
dropped over 7%, Sunny Optical Technology (02382.HK) declined about 4%, Lens
Technology (06613.HK) fell more than 3%, with Zhongji Xuchuang (03308.HK) and
other sector names also lower.