Shares in China's Qingdao Port International weakened in their Hong Kong trading debut on Friday amid concern that the company could be hurt by a probe into metal financing at the world's seventh busiest port.
Global trading houses and banks on Thursday were scrambling to check on their exposure to the probe, as worries grow that a crackdown into commodity financing could hit trade in the world's top metal buyer.
Trading sources have said port authorities are conducting the investigation but it is not clear which authorities are in charge.
"Everything in Qingdao port is running normally," the operator's chairman, Zheng Minghui, told reporters at the company's listing ceremony at the Hong Kong stock exchange but declined further comment.
Qingdao Port International is the primary operator of the port, handling about 76 percent of the port's total cargo last year.