The Hong Kong stock optical communications sector continued to decline. Zhongji Xuchuang fell more than 5% to a new low. Haiguang Core is falling more than 7%, and Changfei Optical Cable and Cambridge Technology are all falling by more than 6%.

The Hong Kong stock optical communications sector continued to decline. Zhongji Xuchuang fell more than 5% to a new low. Haiguang Core is falling more than 7%, and Changfei Optical Cable and Cambridge Technology are all falling by more than 6%.