** Shares of Haichang Ocean Park Holdings 2255.HK fall 7.3% to HK$0.445, their lowest level since Dec 12, after rising for two consecutive sessions
** Stock set for the biggest one-day pct drop since Dec 9
** The Chinese theme parks developer and operator said it received a notice from a family member of its chairman and CEO Yu Faxiang that he has been subject to criminal compulsory measures imposed by the Shaoxing Public Security Bureau on suspicion of a criminal offence
** The case is under investigation and the company's production and operations remain normal and the matter will have no material impact on its production and operations - Co
** YTD, stock down 19.6%, while benchmark Hang Seng Index .HSI up 28.9%
(Reporting by Donny Kwok)
((donny.kwok@thomsonreuters.com))