Hong Kong optical communications concept stocks strengthened, with Hua Hong Semiconductor (01347.HK) rising more than 16%, and Huiyu Technology (01729.HK) gaining more than 12%. According to Jin10, Xizi Technology-P (01879.HK) rose more than 10%, Cambridge Technology (06166.HK) rose more than 5%, while Sunny Optical Technology (02382.HK), Joyson Electronics (00699.HK), and Yangtze Optical Fibre and Cable (06869.HK) also advanced.