finance.yahoo.com Market update
Chinese optical module makers slump after report on planned US import ban
By Samuel Shen and Summer Zhen SHANGHAI/HONG KONG Aug 5 (Reuters) - Shares of Chinese optical module makers such as Zhongji Innolight slumped on Wednesday after a Reuters report that the Trump administration was drafting a ban on U.S. imports of new models of Chinese data centre components. The CSI300 Telecommunication Services Index tumbled as much as 9% …