China shadow banking scandal concerns have escalated after police in Zhejiang detained Yu Faxiang, chairman and chief executive of Hong Kong-listed Haichang Ocean Park Holdings, as authorities probe alleged wrongdoing tied to delayed repayments on multibillion-yuan wealth management products issued by Sunriver Holding Group, a firm he controls. Haichang said it was informed by Yu’s family that police had imposed criminal compulsory measures and opened an investigation, adding