Hong Kong-listed optical-communications stocks firmed. Cambridge Technology
(06166.HK) rose nearly 4%; Zhongji Xuchuang (03308.HK) gained over 3%. Joyson
Electronics (00699.HK), Xizhi Technology-P (01879.HK), Huiju Technology
(01729.HK) and Lens Technology (06613.HK) also advanced.