Chinese optical module makers slump after report on planned US import ban

Shares of major Chinese optical module manufacturers declined sharply following reports that the Trump administration was developing an import restriction on new models of Chinese data centre components. The CSI300 Telecommunication Services Index fell as much as 9% in early trading.
Zhongji Innolight, Eoptolink Technology, and Suzhou TFC Optical Communications were among the hardest hit. Zhongji Innolight, ranking as the 10th-largest China-listed stock by market value, shed roughly 10% in both