Hong Kong shares of Black Sesame Smart (02533.HK) plunged nearly 50% at the beginning of the session, after the company responded to reports related to BYD that it has a long-term cooperative relationship with China's leading automotive OEMs (including but not limited to BYD), which is the daily and general business process of the Group.
Class A shares of the securities plate was active at the beginning, Guosheng Financial Control's daily limit, China Merchants Securities, Everbright Securities, Capital Securities, CITIC Securities, Hualin Securities and other collective high.